Subjects -> ENGINEERING (Total: 2656 journals)
    - CHEMICAL ENGINEERING (235 journals)
    - CIVIL ENGINEERING (237 journals)
    - ELECTRICAL ENGINEERING (176 journals)
    - ENGINEERING (1316 journals)
    - ENGINEERING MECHANICS AND MATERIALS (426 journals)
    - HYDRAULIC ENGINEERING (56 journals)
    - INDUSTRIAL ENGINEERING (98 journals)
    - MECHANICAL ENGINEERING (112 journals)

MECHANICAL ENGINEERING (112 journals)                     

Showing 1 - 95 of 95 Journals sorted alphabetically
Accurate: Journal of Mechanical Engineering and Science     Open Access   (Followers: 10)
Acta Mechanica     Hybrid Journal   (Followers: 23)
Acta Mechanica et Automatica     Open Access   (Followers: 1)
Acta Mechanica Solida Sinica     Hybrid Journal   (Followers: 8)
Acta Universitatis Sapientiae Electrical and Mechanical Engineering     Open Access   (Followers: 2)
Advanced Energy Materials     Hybrid Journal   (Followers: 34)
Advanced Engineering Research     Open Access   (Followers: 2)
Advanced Sensor and Energy Materials     Open Access   (Followers: 29)
Advances in Mechanical Engineering     Open Access   (Followers: 199)
Advances in Tribology     Open Access   (Followers: 14)
American Journal of Mechanical Engineering     Open Access   (Followers: 66)
Archive of Mechanical Engineering     Open Access   (Followers: 82)
Archives of Civil and Mechanical Engineering     Hybrid Journal   (Followers: 4)
Australian Journal of Mechanical Engineering     Hybrid Journal   (Followers: 5)
BMC Mechanical Engineering     Open Access   (Followers: 4)
Chinese Journal of Mechanical Engineering     Open Access   (Followers: 1)
Chinese Journal of Mechanical Engineering : Additive Manufacturing Frontiers     Open Access   (Followers: 6)
Emission Control Science and Technology     Hybrid Journal   (Followers: 2)
European Mechanical Science     Open Access   (Followers: 1)
Facta Universitatis, Series : Mechanical Engineering     Open Access   (Followers: 1)
Friction     Open Access   (Followers: 5)
Frontiers of Mechanical Engineering     Hybrid Journal   (Followers: 18)
Human Factors and Mechanical Engineering for Defense and Safety     Hybrid Journal   (Followers: 2)
Ingeniería Mecánica     Open Access   (Followers: 3)
International Journal of Dynamics and Control     Hybrid Journal   (Followers: 9)
International Journal of Engineering Materials and Manufacture     Open Access   (Followers: 3)
International Journal of Manufacturing, Materials, and Mechanical Engineering     Full-text available via subscription   (Followers: 19)
International Journal of Material and Mechanical Engineering     Open Access   (Followers: 34)
International Journal of Mechanical and Materials Engineering     Open Access   (Followers: 7)
International Journal of Mechanical Engineering Education     Full-text available via subscription   (Followers: 13)
International Journal of Mechanical Sciences     Hybrid Journal   (Followers: 17)
International Journal of Mechatronics and Automation     Hybrid Journal   (Followers: 5)
International Journal of Metrology and Quality Engineering     Full-text available via subscription   (Followers: 3)
International Journal of Microwave Engineering and Technology     Full-text available via subscription   (Followers: 7)
International Journal of Powertrains     Hybrid Journal   (Followers: 2)
Iranian Journal of Science and Technology, Transactions of Mechanical Engineering     Hybrid Journal  
JMST Advances     Hybrid Journal  
Journal of Aircraft     Hybrid Journal   (Followers: 288)
Journal of Applied Mechanical Engineering     Open Access   (Followers: 16)
Journal of Computational and Applied Research in Mechanical Engineering     Open Access   (Followers: 2)
Journal of Energy, Mechanical, Material and Manufacturing Engineering     Open Access   (Followers: 4)
Journal of Mechanical Design and Testing     Open Access   (Followers: 4)
Journal of Mechanical Engineering     Open Access   (Followers: 85)
Journal of Mechanical Engineering and Automation     Open Access   (Followers: 10)
Journal of Mechanical Engineering Research     Open Access   (Followers: 11)
Journal of Mechanical Engineering Science and Technology     Open Access   (Followers: 3)
Journal of Mechanical Science and Technology     Hybrid Journal   (Followers: 9)
Journal of Mechanical, Civil and Industrial Engineering     Open Access   (Followers: 11)
Journal of Mechanics     Hybrid Journal   (Followers: 9)
Journal of Mechatronics, Electrical Power, and Vehicular Technology     Open Access   (Followers: 6)
Journal of Microelectromechanical Systems     Hybrid Journal   (Followers: 43)
Journal of Strain Analysis for Engineering Design     Hybrid Journal   (Followers: 6)
Journal of the Brazilian Society of Mechanical Sciences and Engineering     Hybrid Journal   (Followers: 3)
Journal of the Mechanical Behavior of Biomedical Materials     Hybrid Journal   (Followers: 11)
Jurnal Taman Vokasi     Open Access  
Latin American Journal of Solids and Structures     Open Access   (Followers: 3)
Lubricants     Open Access   (Followers: 3)
Material Design & Processing Communications     Hybrid Journal   (Followers: 1)
Mechanical Engineering and Design     Open Access   (Followers: 90)
Mechanical Engineering Research     Open Access   (Followers: 20)
Mechanical Sciences     Open Access   (Followers: 11)
Mechanical Systems and Signal Processing     Hybrid Journal   (Followers: 8)
Media Mesin : Majalah Teknik Mesin     Open Access  
Mekanika : Majalah Ilmiah Mekanika     Open Access  
Modern Mechanical Engineering     Open Access   (Followers: 66)
MTZextra     Full-text available via subscription  
Open Mechanical Engineering Journal     Open Access   (Followers: 2)
Proceedings of the Institution of Mechanical Engineers Part A: Journal of Power and Energy     Hybrid Journal   (Followers: 8)
Proceedings of the Institution of Mechanical Engineers Part B: Journal of Engineering Manufacture     Hybrid Journal   (Followers: 17)
Proceedings of the Institution of Mechanical Engineers Part C: Journal of Mechanical Engineering Science     Hybrid Journal   (Followers: 25)
Proceedings of the Institution of Mechanical Engineers Part D: Journal of Automobile Engineering     Hybrid Journal   (Followers: 14)
Proceedings of the Institution of Mechanical Engineers Part E: Journal of Process Mechanical Engineering     Hybrid Journal   (Followers: 2)
Proceedings of the Institution of Mechanical Engineers Part F: Journal of Rail and Rapid Transit     Hybrid Journal   (Followers: 11)
Proceedings of the Institution of Mechanical Engineers Part G: Journal of Aerospace Engineering     Hybrid Journal   (Followers: 42)
Proceedings of the Institution of Mechanical Engineers Part H: Journal of Engineering in Medicine     Hybrid Journal   (Followers: 3)
Proceedings of the Institution of Mechanical Engineers Part I: Journal of Systems and Control Engineering     Hybrid Journal   (Followers: 16)
Proceedings of the Institution of Mechanical Engineers Part J: Journal of Engineering Tribology     Hybrid Journal   (Followers: 34)
Proceedings of the Institution of Mechanical Engineers Part K: Journal of Multi-body Dynamics     Hybrid Journal   (Followers: 4)
Proceedings of the Institution of Mechanical Engineers Part L: Journal of Materials: Design and Applications     Hybrid Journal   (Followers: 11)
Proceedings of the Institution of Mechanical Engineers Part M: Journal of Engineering for the Maritime Environment     Hybrid Journal   (Followers: 3)
Proceedings of the Institution of Mechanical Engineers Part N: Journal of Nanoengineering and Nanosystems     Hybrid Journal   (Followers: 3)
Proceedings of the Institution of Mechanical Engineers Part O: Journal of Risk and Reliability     Hybrid Journal   (Followers: 7)
Proceedings of the Institution of Mechanical Engineers Part P: Journal of Sports Engineering and Technology     Hybrid Journal   (Followers: 4)
Quantitative InfraRed Thermography Journal     Hybrid Journal  
Research Papers Faculty of Materials Science and Technology Slovak University of Technology     Open Access   (Followers: 4)
Science China Physics, Mechanics & Astronomy     Hybrid Journal   (Followers: 4)
Simetris : Jurnal Teknik Mesin, Elektro dan Ilmu Komputer     Open Access  
Strojarstvo     Full-text available via subscription  
Strojn?cky casopis ? Journal of Mechanical Engineering     Open Access  
Technical Reports Mechanical Engineering     Open Access   (Followers: 4)
Transactions of the Canadian Society for Mechanical Engineering     Hybrid Journal   (Followers: 8)
Trends in Mechanical Engineering & Technology     Full-text available via subscription   (Followers: 4)
Tribologia : Finnish Journal of Tribology     Open Access   (Followers: 2)
Universal Journal of Mechanical Engineering     Open Access   (Followers: 17)
Проблемы машиностроения - Mechanical Problems     Open Access   (Followers: 1)

           

Similar Journals
Journal Cover
Facta Universitatis, Series : Mechanical Engineering
Journal Prestige (SJR): 0.227
Citation Impact (citeScore): 1
Number of Followers: 1  

  This is an Open Access Journal Open Access journal
ISSN (Print) 0354-2025 - ISSN (Online) 2335-0164
Published by U of Niš Homepage  [11 journals]
  • PERIODIC SOLUTION OF A MICRO-ELECTROMECHANICAL SYSTEM

    • Authors: Ji-Huan He
      Abstract:  This paper examines the periodic motion of the micro-electro-mechanical system (MEMS), which is governed by a singularity that makes it challenging to find an exact solution and to understand its dynamical properties. This paper applies the frequency formulation to gain insight into the frequency-amplitude relationship of the system. It is found that when the amplitude reaches a threshold value, the periodic motion becomes pull-in instability. This finding simplifies the warning system for the system’s unsafe operating conditions, and the frequency-amplitude relationship can be used for optimal design of the system with high accuracy and high reliability.
      PubDate: 2024-07-12
      Issue No: Vol. 22, No. 1 (2024)
       
  • NONLINEAR DYNAMICAL CHARACTERISTICS OF HYBRID TRI-STABLE PIEZOELECTRIC
           ENERGY HARVESTER BASED ON ROTATIONAL MOTION

    • Authors: Da-Wei Man, Yu Zhang, Li-Ping Tang, Qing-Hu Xu, Dong Chen, Bang-Dong Jiang, Ting-Ting Han, Tao Xu, Jin-Bao Li
      Abstract: The paper presents an improved hybrid tri-stable cantilever piezoelectric energy harvester based on rotational motion, thus providing a new perspective for achieving higher efficiency in energy capture for rotational motion. The proposed system comprises a piezoelectric cantilever beam with an innovative dynamic amplifier installed at the edge of a vehicle's wheel hub. Through theoretical analysis and numerical simulations, the influence of parameters such as the mass of the tip magnetic on the piezoelectric beam, the wheel hub radius, rotational speed, and the ratio of the dynamic amplifier's spring stiffness are investigated with respect to the system's steady-state dynamic response and time-domain performance. A comparative analysis is also conducted with traditional tri-stable piezoelectric energy harvesters. The results demonstrate that the hybrid tri-stable piezoelectric energy harvester exhibits superior performance in capturing vibrational energy during rotational motion, compared to traditional tri-stable piezoelectric energy harvesters. Proper adjustments to the mass of the tip magnetic and the internal spring stiffness of the dynamic amplifier can enhance the system's output voltage and the rotational speed range of inter-well motion. Additionally, the rotational speed range of inter-well motion increases with the expansion of the wheel hub radius. However, when the rotational speed is below 100 rpm, the influence of varying the wheel hub radius on the system's output voltage is minimal.
      PubDate: 2024-06-02
      Issue No: Vol. 22, No. 1 (2024)
       
  • ROUGH MULTI- PERIOD NETWORK DATA ENVELOPMENT ANALYSIS FOR EVALUATION OF
           SUPPLY CHAIN: A CASE STUDY OF SKILL TRAINING IN IRAN

    • Authors: Sepideh Ebadi, Ali Tajdin, Iraj Mahdavi, Hamed Fazlollahtabar
      Abstract: The existence of a comprehensive and complete model, along with accurate and reliable data, helps to evaluate the performance of the supply chain. Given the different layers and various performances in designing the supply chain, a method that can analyze and evaluate such network structure is required. Moreover, data and conditions’ uncertainty highlight the need for a method that can also include uncertainty in evaluation. In this paper, designing a multi-period network is carried out with rough data to embed in various layers and levels of supply chain. The supply chain performance evaluation is performed using rough network data envelopment analysis. Rough Network Data Envelopment Analysis (RNDEA) is a proper method since it analyzes all the current factors in evaluation; besides, it provides efficiency scores for inefficient decision-making units and boundary forecasting for these units on an efficient border. The study’s outcomes reveal the efficiency of different factors in the designed network. On the other hand, unlike common data envelopment analysis that indicates the maximum of a factor efficiency, the efficiency priority is calculated in the proposed rough network model, and divisional efficiency also is determined in each step.
      PubDate: 2024-06-01
      Issue No: Vol. 22, No. 1 (2024)
       
  • OPTIMIZATION BASED DETERMINATION OF THE SET OF CONTINUOUS-STATE COMPONENTS
           CRITICAL TO THE MECHANICAL SYSTEM STATE

    • Authors: Dragana Makajić-Nikolić, Milan Stanojević, Nebojša Nikolić, Petar Pavlović
      Abstract: This paper proposes a new approach to determining the set of the most critical continuous-state components in continuous-state mechanical systems. Unlike traditional importance measures, which determine the criticality of individual components, our approach provides selection of the entire set of critical components. In addition, it enables determination of the minimal budget for achieving full or any required performance levelof the mechanical system. We start from the continuum structure function and the system state definition through minimal cut sets. The problem defined in this paper is formulated as a determination of a set of components whose states maximize the system performance level under the budget constraint. Further, we prove that the solution of the formulated problem can be obtained based on the solution to a weighted minimal hitting set problem. The proposed approach is applied to a group of benchmark instances and the obtained results are compared to components’ rankings obtained by using traditional importance measures.
      PubDate: 2024-05-28
      Issue No: Vol. 22, No. 1 (2024)
       
  • PICTURE-HESITANT FUZZY-BASED DUAL-NORMALIZED MULTIPLE AGGREGATIONS FOR
           MATERIAL SELECTION IN A LIFT-BASED CONVERTER

    • Authors: Daekook Kang, Krishnan Suvitha, Michael Sandra, Dragan Pamucar, Vladimir Simic, Samayan Narayanamoorthy
      Abstract: Material selection is a critical aspect of developing effective Wave Energy Converters (WECs), ensuring their durability, reliability, and efficiency. However, existing methods may struggle to account for the uncertainties and complexities inherent in this process, especially in the context of lift-based WECs. This paper addresses the challenge of material selection for lift-based WECs by presenting a novel methodology that integrates fuzzy information representation and Multi-Criteria Decision-Making (MCDM) techniques. The aim is to provide decision-makers with a robust framework for optimizing material choices despite uncertainties and limited field data. The methodology proposed in this paper combines a material selection approach tailored for lift-based WECs with a new fuzzy information representation technique, probabilistic picture hesitant fuzzy sets (P-PHFSs). A hybrid MCDM approach is introduced, leveraging the Performance Selection Index (PSI) method for determining criterion weights based on P-PHFSs. The results underscore the potential of these methods for reducing the risk of machine failures in WEC technology. The proposed method contributes to the development of WEC technology by providing a systematic and flexible framework for decision-makers to optimize material choices and improve the reliability and performance of WEC systems.
      PubDate: 2024-05-28
      Issue No: Vol. 22, No. 1 (2024)
       
  • MULTI-OBJECTIVE OPTIMIZATION RESEARCH ON VR TASK SCENARIO DESIGN BASED ON
           COGNITIVE LOAD

    • Authors: Qian-Wen Fu, Qing-Hua Liu, Tao Hu
      Abstract: In order to improve the efficiency of information acquisition and task selection in Virtual Reality (VR) systems, enhance the interactive experience, and reduce cognitive load for users, it is crucial to effectively organize and leverage user cognitive psychology and design elements during the VR scene design phase. This paper focuses on analyzing the low cognitive load requirements of users and the need for a satisfactory user perceptual experience based on the cognitive resource theory. We propose a method for optimizing the design of VR system scenario tasks under low cognitive load requirements. By utilizing human-computer hybrid intelligent assistance for predicting user cognitive load and incorporating intelligent optimization genetic algorithms into the optimization of VR system design elements, we aim to minimize cognitive load as the objective function based on the principle of low cognitive load. Important knowledge granularity nodes are used as fitness functions in the optimization process of VR system design resource elements. An application study is conducted, combining the multi-channel cognition in a smart city VR system task information interface, to optimize the system resource features. The study validates and compares the solutions obtained through traditional design processes and the solutions optimized by the method proposed in this paper, using virtual reality eye-tracking experiments for the same design task requirements in VR systems. The results demonstrate that users experience lower cognitive load and better task operation experience when interacting with the optimized solutions proposed in this paper. Therefore, the optimization method studied in this paper can serve as a reference for the construction of virtual reality systems.
      PubDate: 2024-05-23
      Issue No: Vol. 22, No. 1 (2024)
       
  • INFLUENCE OF TANGENTIAL SLIDING ON THE CONTACT AREA OF A MACROSCOPIC
           ADHESIVE CONTACT

    • Authors: Josefine Wilhayn, Iakov A. Lyashenko, Qiang Li, Valentin L. Popov
      Abstract: Influence of tangential force on the adhesive contact, in particular on the adhesive strength and the contact area have been a subject of investigation and discussions for many years. Depending on the system under consideration, both increase and decrease of adhesion strength due to shearing of an adhesive contact have been reported. The same is valid for change of the contact area. While it is generally accepted that the contact area decreases when applying tangential traction, also opposite behaviour is possible. In the present paper we study theoretically and experimentally the conditions under which the contact area may increase or decrease due to shear.
      PubDate: 2024-05-18
      Issue No: Vol. 22, No. 1 (2024)
       
  • NOVEL SMART DESIGN OF REAR HALF SHAFT OF LARGE URBAN TRANSPORT VEHICLE

    • Authors: Fabio Alberti, Danilo D'Andrea, Alarico Macor, Giacomo Risitano, Antonio Rosseti, Aleksandar Sedmak
      Abstract: New design method of rear half shaft of a large urban transport vehicle with a conventional (Power Shift) and hydro-mechanical (Power Split) transmission is presented. The so-called Smart Design is based on the automatic cumulative fatigue damage determination combining the Rainflow method and Palmgren-Miner rule. Previous study, comparing the Power Shift transmission with other alternatives, clearly demonstrated that the Power Split transmission offers significant advantages in terms of pollutant emissions and fuel consumption, making it a better choice for the ecological transition. Anyhow, from a mechanical point of view, the results of this work show that the load condition of the hydro-mechanical Power Split transmission reduce significantly the fatigue life of a component initially designed for a conventional transmission.
      PubDate: 2024-05-17
      Issue No: Vol. 22, No. 1 (2024)
       
  • ANN AND HYBRID MODELLING OF ECCENTRICALLY PATCH LOADED STEEL I-GIRDERS

    • Authors: Biljana Šćepanović, Snežana Rutešić, Olga Mijušković, Luisa María Gil-Martín, Enrique Hernández-Montes
      Abstract: Majority of eccentrically patch loaded girders collapse at lower load level than their geometrical equivalents loaded in the web plane, due to different collapse mechanism. However, some eccentrically patch loaded girders, even with significant load eccentricity, behave as if loaded in the web plane, having the same collapse mode and ultimate load as in the case of centric load. Hence, the ultimate strength of eccentrically patch loaded steel I-girders should be found out in two phases: firstly, girder collapse mode should be estimated; secondly, depending on expected collapse mode, ultimate load should be calculated appropriately. Both tasks are demanding, with plenty of mutually dependent influential parameters. Artificial neural network (ANN) modelling, being suitable for multi-parameter analysis, is quite convenient method for studying eccentrically patch loaded steel I-girders in both mentioned tasks, as confirmed through the examples elaborated in the paper. Not only that it is valuable on its own, as a standalone technique, but also in combination with and as support to other methods (hybrid modelling).In comparison of five procedures for ultimate load determination (empirical expression, mechanical model, two versions of refined mechanical model, one of them by ANN, and standalone ANN forecast model), ANN modelling, providing high quality results, qualified in top-two procedures for ultimate load, regardless of collapse mode type. It is also proved that certain shortages of mechanical model may be overcome by its coupling with ANN modelling. Such hybrid modelling provided remarkably more accurate results than original mechanical model.Study confirmed need of revision of mechanical model. As the first step, new, more demanding constraints of mechanical model validity are proposed in this paper.
      PubDate: 2024-05-17
      Issue No: Vol. 22, No. 1 (2024)
       
  • NEW APPROACH TO EXPERIMENTAL DETERMINATION OF ROTATIONAL PIVOT BEHAVIOUR
           BY PHOTOGRAMMETRIC MEASUREMENT

    • Authors: Kristina Marković, Maja Dundović, Željko Vrcan
      Abstract: This paper discusses an innovative approach to experimentally determine the behaviour of rotational pivot behaviour by photogrammetric measurements. The compliant rotational pivot was selected for research as it is a well understood compliant mechanism whose deformations can be calculated analytically or numerically, allowing easy verification of the results. The mechanism was redesigned for monolithic additive manufacturing with the selection of printing directions that have reduced the influence of material anisotropy. Rapid developments in image processing and computer vision have resulted in integration of photogrammetry and digital image correlation into a wide range of applications. The primary contribution of this article is in the custom designed experimental pure bending load testing setup with an additional optical displacement measurement system, which was used to study the behaviour of additively manufactured compliant mechanisms. A high quality, consumer-grade camera was used for image capture, while image processing was performed using ready-made and custom developed MATLAB tools. Also, a redesigned compliant mechanism with sufficient precision for applications in low-cost, single-use compliant precise positioning systems was developed, and it was determined whether the selected experimental method is applicable to the research of monolithic compliant rotational joints. The experimental results obtained using this method have been compared to results obtained using finite element analysis and analytical calculations, and it was shown that the results are in good concordance. Therefore, it was concluded that photogrammetric analysis aided by feature recognition is applicable to the measurement of parasitic shift of compliant mechanisms.
      PubDate: 2024-05-15
      Issue No: Vol. 22, No. 1 (2024)
       
  • COMPREHENSIVE EVALUATION OF DIMENSIONAL DEVIATION, FLANK WEAR, SURFACE
           ROUGHNESS AND MATERIAL REMOVAL RATE IN DRY TURNING OF C45 STEEL

    • Authors: Aleksandar Milosevic, Goran Simunovic, Zeljko Kanovic, Katica Simunovic, Zeljko Santosi, Mario Sokac, Djordje Vukelic
      Abstract: The study investigated the turning of C45 steel in a dry environment. The input parameters that were varied were cutting speed, feed, depth of cut, corner radius and insert type. The experimental investigations were carried out according to a custom experimental design using the D-optimality criterion. The measured output parameters were dimensional deviation, flank wear and surface roughness, while the material removal rate was calculated. A detailed analysis and evaluation of the effects of the input parameters on the output parameters was carried out. The model was diagnosed and appropriate regression equations was established. Based on the obtained regression equations, multi-objective optimisation was performed using particle swarm optimisation. The objective function was to simultaneously minimise dimensional deviation, flank wear and surface roughness and maximise material removal rate. The optimisation was carried out for different weighting coefficients of each output function for different production requirements. The obtained models and optimal values were verified by additional confirmation experiments.
      PubDate: 2024-05-15
      Issue No: Vol. 22, No. 1 (2024)
       
  • SELECTION OF DATA CONVERSION TECHNIQUE VIA SENSITIVITY-PERFORMANCE
           MATCHING: RANKING OF SMALL E-VANS WITH PROBID METHOD

    • Authors: Željko Stević, Mahmut Baydaş, Mustafa Kavacık, Emrah Ayhan, Dragan Marinković
      Abstract: Sensitivity analyses are frequently performed to determine the robustness of MCDM methods, of which there are more than 200 types. In the past, rankings were compared to each other rather than to an external ranking. Thus, the direction and meaning of sensitivity can become unclear and complex. In addition, sensitivity analysis is usually performed only based on weight coefficients, but the effect of the normalization type is neglected. In this study, the most appropriate data conversion technique was investigated through an innovative sensitivity procedure to select the e-Small Van, which is an environmentally friendly logistics and transportation vehicle. Seven different normalization types based on the PROBID method (and two additional alternative MCDM methods) were used as parameters, resulting in 105 different MCDM rankings. According to the findings, MCDM rankings, which have low sensitivity, were also the performing methods that produced the highest correlation with price. What is striking is that careless choice of normalization type can be so effective as to manipulate the results. Although the most appropriate technique may vary depending on the data type, the fixed gold standard we recommend offers a flexible solution for all applications. A suitable data converter will result in the choice of a reliable electric vehicle.
      PubDate: 2024-05-11
      Issue No: Vol. 22, No. 1 (2024)
       
  • GECKO-INSPIRED FRACTAL BUFFER FOR PASSENGER ELEVATOR

    • Authors: Yu-Ting Zuo, Fu-Fang Luo, Shi-Long Zeng
      Abstract: Elevator accidents are common occurrences and can cause serious injuries and property damages. If an elevator falls from a tall building and hits the ground at high speed, passengers in the car have little chance of survival. We designed a fractal buffer with hierarchical structure, which is inspired by the gecko’s pad system, to minimize the damage. A fractal-fractional oscillator is established to show the frequency-amplitude relationship of the fractal buffer using He’s frequency formulation. The fractal-structured vibration-absorbing metamaterial in low frequency contributes to the elevator safety. This paper opens a new window for designing safe and reliable buffers, and provides entrepreneurs with new ideas for the next generation of elevators.
      PubDate: 2024-05-11
      Issue No: Vol. 22, No. 1 (2024)
       
  • DYNAMIC VEHICLE ROUTING PROBLEM FOR SMART WASTE COLLECTION

    • Authors: Danijel Marković, Saša Marković, Dragan Marinković, Dragan Pamučar
      Abstract: This paper examines waste management problems in urban areas and analyzes systems employed in waste management. The first part of the paper focuses on waste collection and transport activities in urban systems, as well as on understanding the causes behind the ineffectiveness of traditional waste collection systems. A smart waste collection container prototype is presented with the aim of achieving more efficient waste collection, coupled with the application of modern information and communication technologies in waste collection and transport systems. The waste collection problem is defined as a dynamic CVRP. To solve this problem, a methodology is proposed based on heuristics for defining optimal dynamic routes so as to minimize total costs, that is, transport costs.
      PubDate: 2024-05-10
      Issue No: Vol. 22, No. 1 (2024)
       
  • SLIDING FRICTION IN CONTACTS WITH ONE- AND TWO-DIMENSIONAL VISCOELASTIC
           FOUNDATIONS AND VISCOELASTIC HALF-SPACE

    • Authors: Toshiki Watanabe, Shintaro Hatanaka, Ken Nakano, Valentin L. Popov
      Abstract: Solid viscoelasticity is one of the essential origins of sliding friction, as every solid exhibits energy dissipation due to it during deformation processes. In this paper, we first show theoretical solutions for one-dimensional (1D) problems of viscoelastic friction with a 1D viscoelastic foundation. Then, we extend the 1D model to a two-dimensional (2D) model to find theoretical solutions for 2D problems of viscoelastic friction. Finally, we apply the Method of Dimensionality Reduction (MDR) to the theoretical solutions for the 1D problems to discuss three-dimensional (3D) problems of viscoelastic friction.
      PubDate: 2024-05-09
      Issue No: Vol. 22, No. 1 (2024)
       
  • MACHINE LEARNING OF STRUCTURE – PROPERTY RELATIONSHIPS: AN APPLICATION
           TO HEAT GENERATION DURING PLASTIC DEFORMATION

    • Authors: Filip Nikolić, Marko Čanađija
      Abstract: In the present work, the heat generation during the plastic deformation of a multiphase material is studied using machine learning (ML) methods. The aim was to predict the temperature increase from the structure-property relationships (SPR) of a microstructure considering various Taylor–Quinney coefficients (TQCs), with the aim of achieving precision and computational efficiency suitable for industry. Using automatic microstructure generation to create datasets and finite element analysis (FEA) to obtain temperature increase – strain curves, the dataset facilitated the training of an ML model. A 3D convolutional neural network (CNN) was developed using the microstructural configuration and TQC value as input and the temperature increase – strain curve as output. The model demonstrated high prediction accuracy. The results indicated that the hard phase fraction significantly impacts the temperature increase, much more than the TQC values. This underlines the potential of the model for a better understanding of material behavior during deformation and its industrial applicability.
      PubDate: 2024-05-08
      Issue No: Vol. 22, No. 1 (2024)
       
  • ATTENUATION CHARACTERISTICS OF ULTRASONIC WAVES FROM SONAR LOGGING TOOLS
           IN SALT CAVERN GAS STORAGE

    • Authors: Hai-Yan Yang, Yu Wang, Sen-Lin Liu, Qing Tu, Gang Chen
      Abstract: The sonar detection of salt cavern gas storage (SCGS) has a low accuracy due to sound wave attenuation. To solve the problem, this paper analyzes the attenuation features of sound waves in SCGS, based on the mechanical wave equation and Urick sound wave attenuation theory, as well as expression of sound velocity in dilute solution and the general empirical formula of solution density. Specifically, three attenuation forms of sound waves in dilute solutions with different concentrations were studied, and a theoretical model for the total attenuation of sound waves in SCGS was established. The model was adopted to explore the effect of solution temperature and concentration on sound wave attenuation. The results yield some interesting findings. It is shown that the temperature has a small overall effect on the attenuation of sound waves. Also, the total attenuation coefficient of sound waves in suspensions with different concentrations increases with the frequency of the sound waves. Furthermore, when the frequency of the sound waves remains unchanged, the total attenuation coefficient increases with the concentration of the suspension. Finally, when the solution concentration is less than 10%, the total attenuation coefficient of the sound waves depends on scattering attenuation, and the sound wave attenuation is not greatly affected by the viscous attenuation and thermal attenuation. Four salt solutions were tested to verify the correctness of the theoretical research. The experimental results show that, in the SCGS environment, the salt solutions are ranked in a descending order of the influence over sonar detection accuracy starting from potassium chloride solution, via magnesium sulfates solution and calcium chloride solution to sodium chloride solution. The research provides a strong theoretical guidance for sonar detection of SCGS, and a powerful engineering reference for sonar detection in brine.
      PubDate: 2024-04-12
      Issue No: Vol. 22, No. 1 (2024)
       
  • CONTACT INTERACTION OF AN UNDERGROUND PIPELINE WITH SOIL UNDER DYNAMIC
           IMPACTS

    • Authors: Karim Sultanov
      Abstract: The interaction between a semi-infinite underground pipeline and the surrounding soil during longitudinal seismic wave propagation is examined in the article. The wave travels through the soil with its front perpendicular to the pipeline's axis, and the nonlinear laws of interaction (friction) on the surface of their contact, including the Amonton-Coulomb law, are used to solve related wave problems for the pipeline and soil. The method of characteristics and the finite difference method are sequentially used to solve these problems numerically. The implementation of the law of interaction (friction) processes is shown, depending on the parameters of the wave in soil and the mechanical characteristics of soil. It was determined that a wave in soil that involves the pipeline generates a powerful wave in the pipeline. The amplitude of this wave is many times greater than the amplitude of the wave in soil, and it propagates through the pipeline without attenuation. The dependences of the amplitude of this wave on the parameters of the law of friction, waves in soil, and the mechanical characteristics of soil are determined. 
      PubDate: 2024-03-30
      Issue No: Vol. 22, No. 1 (2024)
       
  • EXPERIMENTAL ANALYSIS OF THE EFFECT OF THE WOVEN ARAMID FABRIC ON THE
           

    • Authors: Sojan Andrews Zachariah, Satish Shenoy, Dayananda Pai
      Pages: 013 - 024
      Abstract: Remarkable advances in the research and development of micro/mini Unmanned Aerial Vehicles (UAVs) seek thin, lightweight and strong materials for their structural applications. As these structures involve various loading conditions in both the in-plane and through-the-thickness directions during their life cycle, the assurance of the structural stability in each direction is deemed mandatory. The woven Aramid fibers as high strain materials (HSM) are known to improve the through-the-thickness impact strength. However, the addition of the HSM can affect the overall tensile behavior of composite laminates. This study investigates the effect of the woven Aramid fiber on the in-plane tensile behavior of Carbon/ epoxy laminates. Laminates are fabricated using an easy and cost-effective Vacuum Assisted Resin Infusion Molding (VARIM) setup. A uniaxial tensile test was conducted to analyze the tensile behavior of Carbon/Aramid hybrid composites. The effect of adding the woven Aramid layer and the Carbon fabric sequence on the tensile modulus, strain to failure and modulus of toughness are investigated in this study. The results revealed that the presence of Aramid has a positive hybrid effect on the failure strain, exhibiting pseudo-ductile behavior with a compromise in the tensile modulus of the virgin Carbon/epoxy laminate.
      PubDate: 2024-04-01
      DOI: 10.22190/FUME200819022Z
      Issue No: Vol. 22, No. 1 (2024)
       
  • INFLUENCE OF CROSSING WEAR ON ROLLING CONTACT FATIGUE DAMAGE OF FROG RAIL

    • Authors: Lei Kou, Mykola Sysyn, Jianxing Liu
      Pages: 025 - 044
      Abstract: The damage of the frog rail significantly affects the wear of the crossing rail and restricts the passing speed of the train. A geometric 3D modeling of the vehicle passing through the crossing center is particularly concerned with the cumulative wheel-rail contact of the traffic volume. The frog rail wear is simulated to obtain the dynamic change of the impact force of the wheel on the frog rail as the rail wears. By summarizing the existing experimental results of other scholars, it is clear that the important factors, that cause the damage of the frog rail, are vehicle load, friction coefficient, slip roll ratio and shear stress.  This paper combines the theoretical analysis of mechanics and 3D simulation to obtain the position change of the wheel-rail contact point with the wear of the frog rail, and finally compares it with the actual measurement results. It can more accurately predict the area where the maximum damage occurs after a certain amount of traffic for a certain fixed model, the change of wheel-rail contact point at frog rail is simulated with the wear of each component. Through theoretical analysis, the main factors determining frog rail damage were determined. Then evaluate the possible damage area of the frog track and control the prediction range to 5-10 cm, which reduces the detection time and cost. The worst state of distraction will be detected in time to facilitate replacement or polishing. Through further research in this area, the service life of the frog rail can be predicted.
      PubDate: 2024-04-01
      DOI: 10.22190/FUME220106024K
      Issue No: Vol. 22, No. 1 (2024)
       
  • WEAR LOAD CAPACITY OF CROSSED HELICAL GEARS

    • Authors: Aleksandar Miltenović, Milan Banić, Jovan Tanasković, Jelena Stefanović-Marinović, Damjan Rangelov, Marko Perić
      Pages: 125 - 138
      Abstract: The paper presents a wear load capacity of crossed helical gears (gear pair consists of a worm and a helical gear). Crossed helical gears are similar to worm gear pairs, and it is logical to extend the load capacity calculation approach of worm gears for the case of crossed helical gears. One of the disadvantages of crossed helical gear sets is very high running-in wear. The paper explains the transition between running-in and steady-state wear and proposes a joint wear calculation model. The paper outlines a proposal to extend the calculation method for wear load capacity from a worm gear pair to the case of crossed helical gears (a worm with a helical gear). This calculation method for determining the wear load capacity of crossed helical gears is verified for the cases when the wheel is of bronze CuSn12Ni2-C-GCB and sintered steel Fe1.5Cr0.2Mo.
      PubDate: 2024-04-01
      DOI: 10.22190/FUME220114015M
      Issue No: Vol. 22, No. 1 (2024)
       
  • EXPERIMENTAL DETERMINATION OF DYNAMIC COEFFICIENT OF AMONTON-COULOMB DRY
           FRICTION

    • Authors: Ibrakhim Mirzaev, Khamidulla Sagdiev, Anvar Yuvmitov, Malikjon Turdiev, Bakhtiyorjon Egamberdiev
      Abstract: The purpose of the study is to experimentally determine the dynamic coefficient of dry friction between different materials under vibrations due to the initial deflection. The principle of dry friction between the grillage and the foundation is used for the seismic isolation of buildings and structures. A measuring complex with corresponding strain-gauge measuring channels was prepared on the laboratory one-component shaking stand to record the relative and absolute displacements of two-mass systems. A theoretical solution to this nonlinear problem was obtained with the additional use of a special logical algorithm to determine the direction of the dry friction force between two masses. The value of the dynamic coefficient of dry friction was determined by comparing the numerical solution to the problem with experimental records by selecting the value of the dry friction coefficient. The values of the mass of rubbing elements with the surface treatment of the steel-on-steel contact and a separate option with lubrication of the contact surface with fluoroplastic 4-on-fluoroplastic 4 gaskets were changed in the experiment. The maximum velocity of the platform in experiments corresponds to a 9-point earthquake on the MSK-64 scale.
      PubDate: 2024-03-29
      Issue No: Vol. 21, No. 4 (2024)
       
  • HOMOGENISED PROPERTIES OF LATTICE METAL COMPOSITE CELL

    • Authors: Stefano Valvano
      Abstract: In this paper, the mechanical analysis of an advanced Body Centred Cubic (BCC) lattice cell has been performed through a homogenisation procedure to obtain an equivalent set of mechanical properties. The mechanical analyses have been carried out with the use of ANSYS software and an original ANSYS Parametric Design Language (APDL) subroutine has been developed for the introduction of the double periodic boundary conditions. The Finite Element Method (FEM) is used for the mechanical model, and 3D elements with reduced integration has been employed to guarantee an accurate description of the lattice geometry. Different BCC cell configurations have been considered: standard metal BCC cell, metal BCC cell with waved struts, standard metal composite BCC cell. Depending on the configuration, the homogenised materials showed isotropic or orthotropic properties. For the evaluation of all the engineering constants, uniaxial traction test and in-plane shear test have been simulated along different loading directions. A parametric study has been conducted varying the struts diameter, the struts waviness and the thickness ratio of the composite struts. Finally, the homogenised materials have been tested through the mechanical analysis of sandwich panels with lattice core; a comparison between sandwich panels with homogenised core and sandwich panels with exact lattice cells has been carried out. The parametric study can be useful for the tailoring and optimisation analysis of an advanced component.
      PubDate: 2024-03-23
      Issue No: Vol. 21, No. 4 (2024)
       
  • AN INTEGRATED OPTIMIZATION OF PRODUCTION AND PREVENTIVE MAINTENANCE
           SCHEDULING IN INDUSTRY 4.0

    • Authors: Samane Babaeimorad, Parviz Fattahi, Hamed Fazlollahtabar, Mahmood Shafiee
      Abstract: Preventive Maintenance (PM) plays an important role in maximizing machine reliability, improving production efficiency and reducing repair costs. Due to the importance of PM in manufacturing environments, it is necessary to develop an integrated model for scheduling production jobs and maintenance interventions on the machines. On the other side, with the advent of Industry 4.0 and the transformation of factories into smart factories, the production and maintenance processes generate huge volume of data on real-time basis. Despite the importance of the issue and the competitiveness of manufacturing companies in the world, past studies show that the integration of production scheduling and maintenance in Industry 4.0 platform has not been paid much attention. Therefore, in this paper, we propose an optimal parallel machine-scheduling problem with PM activities. A mathematical model is formulated to optimize the scheduling of production and maintenance operations. Industry 4.0 conceptual model is also presented in this paper, in which the smart sensors are considered as the real enablers for industrial digitalization. The optimization problem is solved using GAMS software and branch and bound algorithm. The results of the model provide a suitable schedule for scheduling production and maintenance, and the comparison of solution methods shows that the branch-and-bound algorithm achieves a suitable output in a shorter time.
      PubDate: 2024-03-21
      Issue No: Vol. 21, No. 4 (2024)
       
  • TRIBOINFORMATICS: MACHINE LEARNING METHODS FOR FRICTIONAL INSTABILITIES

    • Authors: Michael Nosonovsky, Aleksandr S. Aglikov
      Abstract: The study of friction is traditionally a data-driven area with many experimental data and phenomenological models governing structure-property relationships. Triboinformatics is a new area combining Tribology with Machine Learning (ML) and Artificial Intelligence (AI) methods, which can help to establish correlations in data on friction and wear. This is particularly relevant to unstable motion, where deterministic models are difficult to build. There are several types of friction-induced instabilities including those caused by the velocity dependency of dry friction, coupling of friction with another process (wear, heat generation, etc.), the elastic Adams instabilities, and others. The onset of sliding is also an unstable process. ML/AI methods, such as Topological Data Analysis and various ML algorithms, which have been already used for various aspects of data analysis on friction, can be applied also to the frictional instabilities.
      PubDate: 2024-03-10
      Issue No: Vol. 21, No. 4 (2024)
       
  • NUMERICAL STUDY AND DESIGN OPTIMIZATION ON ENERGY ABSORPTION OF
           THIN-WALLED TUBE WITH A YOSHIMURA PATTERN

    • Authors: Yudong Fang, Weijian Han, Zhenfei Zhan, Li Huang
      Abstract: This paper presents a numerical investigation and design optimization of the energy absorption of an origami tube. The arrangement of the tube's surface is inspired by a Yoshimura pattern. A numerical simulation model is developed in ABAQUS/Explicit to simulate the axial crushing of the origami tube. The simulation model is validated by comparing its deformation with the deformation observed in physical tests. Considering the limitations of existing single parametric analysis in the study of the origami tube with a Yoshimura pattern, the paper emphasizes a comprehensive parametric study, which includes a full factor analysis that considers the structural topological parameters, as well as a global sensitivity analysis that considers all the structural parameters. Furthermore, there has been limited reporting on structural optimization for thin-walled tubes with Yoshimura pattern. The paper also highlights multi-objective optimization for origami tubes with a Yoshimura pattern. The optimization aims to enhance energy absorption efficiency and minimize the peak crushing force. To address the computational demands, a surrogate model-based optimization approach is employed for the optimization problem. The optimization process results in a set of Pareto front solutions, offering a range of peak crushing force values from 151.5 to 288.69 kN and specific energy absorption values from 16.06 to 19.52 kJ/kg.
      PubDate: 2024-03-08
      Issue No: Vol. 21, No. 4 (2024)
       
  • EXPERIMENTAL STUDY ON CREEP LOADING OF POROUS COAL UNDER DIFFERENT
           INFLUENCING FACTORS

    • Authors: Jiyu Zheng, Longkang Wang
      Abstract: After the gas drainage borehole is formed in the coal seam, its stress deformation process is a creep process without the influence of mining. By arranging boreholes on coal samples and carrying out creep loading test of porous coal through rock mechanics testing machine, the creep process of boreholes in actual coal seams is simulated. The results show that the creep loading test results of drilled coal are quite different from those of conventional loading. Creep loading produces large deformation due to rheological and aging characteristics. Compared with non-porous coal, the yield of drilled coal occurs earlier and the yield platform is wider during creep loading. Also, the larger the borehole diameter, the deeper the borehole depth, and the lower the peak stress. The up dip angle is easier to destroy than the down dip angle. Compared with hard coal, soft coal produces greater deformation under smaller peak stress. The research results have guiding significance for drilling gas drainage in the soft coal seam.
      PubDate: 2024-03-04
      DOI: 10.22190/FUME231205011Z
      Issue No: Vol. 21, No. 4 (2024)
       
  • LONGITUDINAL-RADIAL VIBRATIONS OF A VISCOELASTIC CYLINDRICAL THREE-LAYER
           STRUCTURE

    • Authors: Khayrulla Khudoynazarov
      Abstract: The paper considers a cylindrical three-layer structure of arbitrary thickness made of viscoelastic material. It consists of two external bearing layers and a middle layer, the materials of which are generally different. The problem of nonstationary longitudinal-radial vibrations of such a structure is formulated. Based on the exact solutions in transformations of the three-dimensional problem of the linear theory of viscoelasticity for a circular cylindrical three-layer body, a mathematical model of its nonstationary longitudinal-radial vibrations is developed. Equations are derived that allow, based on the results of solving the vibration equations, to determine the stress-strain state of a cylindrical structure and its layers in arbitrary sections. The results obtained allow for special cases of transition into cylindrical viscoelastic and elastic two-layer structures, as well as into homogeneous single-layer cylindrical structures and round rods.
      PubDate: 2024-03-04
      Issue No: Vol. 21, No. 4 (2024)
       
  • INTERLAYER EFFECT ON DEFORMATION AND FRACTURE OF DENDRITIC STRUCTURE
           FORMED DURING WIRE-FEED ELECTRON-BEAM ADDITIVE MANUFACTURING OF AL-SI
           ALLOY

    • Authors: Ruslan Balokhonov, Veronika Utyaganova, Diana Gatiyatullina, Aleksandr Zemlianov, Varvara Romanova
      Abstract: Interfaces and surfaces play an important role in tribology, mechanics and materials science, causing plastic strain localization and stress concentration of different spatial scales. The interfacial inhomogeneity is highly pronounced in 3D printed materials due to thermo-cycling and layer-by-layer building. In this paper, the inlayer and interlayer structure of a eutectic Al-Si alloy fabricated by wire-feed electron-beam additive manufacturing is investigated by optical and electron microscopy. Model structures inheriting the experimental morphology are created, and their deformation and fracture are simulated using ABACUS/Explicit, with the user-defined subroutines being developed to describe the constitutive behavior of aluminum dendrite, silicon and eutectic materials. A two-scale computational approach is implemented to study the influence of the interlayer formed in the heat-affected zone on the dendritic structure strength.
      PubDate: 2024-03-03
      Issue No: Vol. 21, No. 4 (2024)
       
  • DRONE SELECTION FOR FOREST SURVEILLANCE AND FIRE DETECTION USING INTERVAL
           VALUED NEUTROSOPHIC EDAS METHOD

    • Authors: Alize Yaprak Gül, Emre Cakmak, Atiye Ece Karakas
      Abstract: Forest fires are one of the major causes for deforestation resulting in significant economic and environmental losses. The application of drones has been extended to various areas including disaster management. Since drones offer numerous advantages like real-time surveillance, task planning capabilities and autonomy, they are utilized in early detection systems for forest fires. The selection of a drone type for this purpose involves a complex system of multiple factors and conflicting information, for which the use of multi-criteria decision-making (MCDM) methods have been found to be yielding effective results. The aim of this study is to present a decision framework for drone selection problem in the context of forest fire surveillance and detection. This study contributes by (i) pointing out to the gap that the drone selection problem for forest surveillance and fire detection has been sparsely addressed, (ii) presenting an extensive literature review, (iii) extracting the relevant criteria through a literature review and interviews with the experts in field, (iv) assessing the alternatives by the proposed framework based on interval valued neutrosophic evaluation based on distance from average solution (IVN EDAS) method. The proposed framework is demonstrated by a case study consisting of four drone alternatives and 14 criteria. In accordance with the extant literature, the criteria related to the visual capabilities and diagnosis are evaluated as the most crucial features. A sensitivity analysis is carried out to check for the robustness by varying the criteria weights and a comparative analysis is conducted with interval valued neutrosophic technique for preference by similarity to the ideal solution (IVN TOPSIS) and interval valued neutrosophic combinative distance-based assessment (IVN CODAS) methods to validate the veracity of the method.
      PubDate: 2024-03-02
      Issue No: Vol. 21, No. 4 (2024)
       
  • INVESTIGATIONS ON THE INFLUENCE OF LASER SURFACE TREATMENT ON HARDNESS AND
           WEAR BEHAVIOUR OF AL-MMC PREPARED THROUGH POWDER METALLURGY ROUTE

    • Authors: Arvind Sankhla, Kaushik Patel, Mayur Makhesana, Anand Patel, Kapil Gupta
      Abstract: Aluminium metal matrix composites (Al-MMCs) are extensively used in various industrial sectors, including aerospace, automotive, construction, and electronics, owing to higher hardness, low density, higher fatigue and specific strength. Powder metallurgy is an effective method for manufacturing composite materials. Compared to pure metals and alloys, the mechanical characteristics of the SiC-reinforced MMCs are enhanced. The Al-MMC surface can undergo metallurgical changes due to the laser treatment, which can also strengthen the binding between the matrix material and the reinforcement particles. Therefore, the current work investigates the impact of SiC particle addition and laser surface treatment on the hardness and wear characteristics of aluminium metal matrix composite (Al-MMC). The Al-MMC is initially fabricated using a powder metallurgy process, and then the MMC is treated with a laser. Compared to the untreated MMC, the laser surface treatment increased the hardness by almost 12%. Additionally, the addition of SiC content by 10%, 15%, 20%, and 25% in laser-treated Al-MMC resulted in increased hardness by 12%, 14%, 15%, and 16%, respectively, compared to untreated Al-MMC. Furthermore, the wear resistance improved as the reinforcement particles increased. The laser-treated samples exhibited lower wear than untreated ones due to the formation of a new layer on the treated surface, preventing the release of SiC particles. The surface treatment of MMC through the laser is a novel approach to fabricating wear-resistant Al-MMCs.
      PubDate: 2024-03-02
      Issue No: Vol. 21, No. 4 (2024)
       
  • MODELING OSTEOCYTE UNDER SHOCK-WAVE THERAPEUTIC LOADING

    • Authors: Alexey Smolin, Galina Eremina
      Abstract: Dental implants have substantial significance in modern dentistry, but their osseointegration stage remains the most crucial and time-consuming step for compensating for a lost tooth. One promising approach to improve osseointegration rates is the use of extracorporeal shock wave therapy, which has shown efficacy in treating fractures, bone defects, and bone tissue regeneration in surgical and arthroplasty procedures. To comprehend the potential of shock wave therapy in accelerating implant osseointegration, it is crucial to investigate the influence of mechanical loading on ossification processes of varying scales objectively. This study aims to study numerically the effects of low-energy shock wave therapy at different intensities on the mechanical response of a single osteocyte, the principal bone cell that corresponds to microscale of bone tissue. The investigation employs the method of movable cellular automata for modeling. The computer simulation results and analysis based on mechanobiological principles indicate that low-intensity shock wave loading creates conditions for intramembranous ossification, whereas high-intensity shock wave exposure creates conditions for endochondral ossification.
      PubDate: 2024-02-27
      Issue No: Vol. 21, No. 4 (2024)
       
  • NUMERICAL STUDY OF A NON-NEWTONIAN PHASE CHANGE FLOW IN FINNED RECTANGULAR
           ENCLOSURES

    • Authors: Mohamed Boujelbene, Seyed A.M. Mehryan, Mikhail Sheremet, Mohammad Shahabadi, Nasrin B.M. Elbashir, Mohammad Ghalambaz
      Abstract: Phase change materials (PCMs) are widely used for thermal energy storage systems due to their effective thermal properties for energy accumulation. Simultaneously, this material has poor thermal conductivity, and for the optimization of such systems, many techniques are used. This study focuses on an analysis of PCMs in a vertical cavity with one, two, or three solid fins and differential heating. The finite element procedure has solved governing equations formulated using the power-law approach for the non-Newtonian PCM and enthalpy-porosity method. The developed code has been verified using numerical and experimental data from other authors. Effects of fins number and power-law index on flow and thermal structures within the cavity have been studied. It has been found that a rise in the power-law index illustrates a growth of time for the charging level of the storage system, while the addition of a solid fin from one to three allows for reducing the charging time. The extended heat transfer surface can be applied to optimize the thermal energy storage system.
      PubDate: 2024-02-18
      Issue No: Vol. 21, No. 4 (2024)
       
  • SELECTION OF OPTIMAL TECHNOLOGICAL PARAMETERS FOR FORMING NOMINALLY FLAT
           SURFACES WITH LUBRICATING MICROCAVITIES

    • Authors: Viktor P. Kuznetsov, Igor V. Tatarintsev, Vladimir V. Voropaev, Andrei V. Korelin
      Abstract: This article demonstrates a multi-step process for forming a nominally flat surface with circumferential lubricating microcavities on a tribological assembly of an Х38CrSi steel shaft. The process includes finish turning, preliminary strengthening burnishing, deformation profiling of microcavities by a honing stone and smoothing of microprotrusions. The study determines the optimal technological parameters for each of the transitions based on microhardness and oil absorption power maximization, as well as roughness and periodic impact minimization. The process optimization is conducted using the Tagichi experiment design method. The optimal combination of technological parameters for hardening burnishing was discovered to be: normal force F = 200 N; feed rate f = 0.025 mm/rev and three tool passes. These burnishing parameters practically eliminate the influence of periodic impacts at spatial frequencies determined by the tool feed rate and the number of spindle rotations during turning. We determined suitable honing stone grit parameters and application force that yield microcavities 3.8 to 8.1 μm in depth, as well as the optimal parameters for smoothing of microprotrusions, resulting in a bearing area roughness of Sa = 0.15 µm and oil absorption power of 13.74×10–5 mm3/mm2.
      PubDate: 2024-02-10
      Issue No: Vol. 21, No. 4 (2024)
       
  • MULTI-OBJECTIVE OPTIMIZATION AND PERFORMANCE ANALYSIS OF BIMORPH
           MAGNETO-ELECTRO-ELASTIC ENERGY HARVESTERS

    • Authors: Meisam Moory Shirbani, Sayed Ehsan Alavi
      Abstract: This study thoroughly investigates the multi-objective optimization of a magneto-electro-elastic (MEE) harvester in bimorph configurations and by the new method of Harris Hawk’s optimization (HHO). The harvesters are configured in both series and parallel connections and under harmonic excitation to explore the effects of various parameters on the performance of the harvesting system. The primary objective is to maximize the total harvested power. Optimization involves various parameters, including dimensions, relative displacement changes, voltage, and current values. The Pareto fronts from the HHO method reveal optimal points in different configurations and scenarios. Notably, the optimal points are selected based on the criterion of maximum total power. The results reveal distinct optimal points for each objective function, demonstrating trade-offs between performance metrics. These findings provide valuable insights into the design and operation of efficient energy harvesters in MEE systems. The parallel configuration outperforms the series connection in terms of the current generation. Moreover, the evaluation of the overall performance of the energy harvesters in terms of total harvested power indicated that both series and parallel connections could lead to promising outcomes. However, the series connection exhibited a more dominant effect on maximizing the total harvested power, proving its relevance in pursuing the highest possible power output.
      PubDate: 2024-01-14
      DOI: 10.22190/FUME231102003S
      Issue No: Vol. 21, No. 4 (2024)
       
  • GRAIN-SCALE DEFORMATION MECHANISMS IN AN ADDITIVELY MANUFACTURED ALUMINIUM
           BRONZE OLIGOCRYSTAL

    • Authors: Varvara Romanova, Dmitry Lychagin, Maxim Pisarev, Olga Zinovieva, Ruslan Balokhonov
      Abstract: Oligocrystals provide a unique material for in-depth analysis of deformation mechanisms in metals and alloys. In this paper, the deformation mechanisms in a Cu-7.5 wt.% Al oligocrystal are investigated experimentally and numerically. An experimental sample containing several coarse columnar grains is produced by wire-feed electron-beam additive manufacturing. Based on the experimental data, a crystal plasticity finite element model is built to consider realistic grain shape and orientations. This study involves a comprehensive analysis of experimental data, numerical results and analytical estimates to reveal the peculiarities of slip activation in oligocrystal grains under compression. Experimental and numerical findings have shown that along with slip systems with the highest Schmid factors, other slip systems are activated in most grains to accommodate their plastic deformation. To elucidate why the slip systems with non-maximal Schmid factors became active, we examined the stress fields within the grains. It was revealed that the stress state at the grain scale deviated from uniaxial. Finally, a detailed numerical analysis of strain rate dynamics demonstrated that plastic deformation in particular grains developed in the form of narrow fronts. These fronts periodically generated near the moving punch and subsequently propagated towards the opposite side of the sample. The study has shown that oligocrystal analysis provides valuable insights into the linkage between the intra- and intergrain deformation mechanisms with the overall material behaviour.
      PubDate: 2024-01-13
      Issue No: Vol. 21, No. 4 (2024)
       
  • MECHANICAL RESPONSE OF LAYERED STRUCTURES WITH INTERNAL LAYERS FROM
           METAMATERIALS EXPOSED TO DYNAMIC LOADINGS

    • Authors: Vladimir A. Skripnyak, Maxim Chirkov, Evgeniya Skripnyak, Vladimir V. Skripnyak
      Abstract: The article presents the results of the analysis of mechanical behavior of mechanical layered structures with metamaterial interlayers under dynamic loading. These structures can be used in lightweight structures for damping dynamic loads in transport and aerospace engineering. Structural elements with layers of the mechanical metamaterials have a low specific mass density and high specific strength characteristics. These multilayer structures have a high specific ability to absorb and dissipate the energy of external dynamic loads too. The results of numerical simulation of the response of multilayer structures to dynamic impacts obtained in this work indicate high specific energy absorption and dissipative properties, which make it possible to weaken the pulse amplitude after passing through the layered system and attenuate of cyclic impacts amplitudes. The results obtained indicate the possibility of creating effective mechanical damping structures of the type under discussion.
      PubDate: 2024-01-13
      Issue No: Vol. 21, No. 4 (2024)
       
  • INTERACTIONS AND INFLUENCES ON COAL MINERS' SAFETY ATTENTION: AN
           EVALUATION USING IMPROVED DEMATEL-ISM

    • Authors: De-Yu Xu, Hong-Qing Cui, Tian-Yu Wang, Jiang-Wei Fu, Guang-Bo Zhu
      Abstract: In coal mining, the myriad of factors influencing miners' attention to safety necessitates deeper exploration. Particularly, discerning the significance and interplay of these factors offers crucial insights into the actual disparities in miners' safety attentiveness. Yet, a limited number of comprehensive studies address this dimension. Thus, an advanced Decision Making Trial Evaluation Laboratory-Interpretive Structural Model (DEMATEL-ISM) has been employed to probe the determinants impacting coal miners' safety focus and the mechanisms underpinning these interactions. The objective is to provide strategies that could diminish the occurrence of minor accidents. Results revealed that there are 9 causative factors and 6 resultant factors shaping the coal miners' attention to safety. Within the structural model of these factors, three layers and seven levels were identified. Notably, the intricacy of relationships among these factors was found to be profound. Emphasis is recommended on the management of these intricate deep-level causative factors boasting high driving power, and mid-level resultant factors characterized by both substantial driving force and dependence.
      PubDate: 2023-10-30
      DOI: 10.22190/FUME230726042X
      Issue No: Vol. 21, No. 3 (2023)
       
  • SURFACE ROUGHNESS OF Ti6Al4V ALLOY PRODUCED BY LASER POWDER BED FUSION

    • Authors: David Liović, Marina Franulović, Luka Ferlič, Nenad Gubeljak
      Abstract: Controlling the surface roughness of materials manufactured by laser powder bed fusion (L-PBF) is critical for achieving functional performance of components and improving their mechanical properties. This is important for components whose surfaces cannot be post-treated using subtractive methods. In this study, the surface roughness has been investigated by applying different laser power and scanning speed combinations. Furthermore, potential effects of different locations on the build platform have been considered as well. The regression models have been developed using significant predictor variables, with their levels defined using face-centered central composite design. The analysis of variance (ANOVA) procedure has been used to evaluate the statistical significance of factors and model performances for each prediction variable. It has been found that the average surface roughness of L-PBF Ti6Al4V alloy can be described with high fitting accuracy using laser power and scanning speed as predictor variables. The position of specimens on the build platform showed no statistically significant effect on the average surface roughness. The experimental research and statistical analysis reported in this paper will contribute to a better understanding of how position, laser power, and scanning speed influence the average surface roughness of L-PBF Ti6Al4V alloy.
      PubDate: 2023-09-16
      DOI: 10.22190/FUME230719030L
      Issue No: Vol. 21, No. 2 (2023)
       
  • HYBRID GENETIC AND PENGUIN SEARCH OPTIMIZATION ALGORITHM (GA-PSEOA) FOR
           EFFICIENT FLOW SHOP SCHEDULING SOLUTIONS

    • Authors: Toufik Mzili, Ilyass Mzili, Mohammed Essaid Riffi, Dragan Pamucar, Vladimir Simic, Laith Abualigah
      Abstract: This paper presents a novel hybrid approach, fusing genetic algorithms (GA) and penguin search optimization (PSeOA), to address the flow shop scheduling problem (FSSP). GA utilizes selection, crossover, and mutation inspired by natural selection, while PSeOA emulates penguin foraging behavior for efficient exploration. The approach integrates GA's genetic diversity and solution space exploration with PSeOA's rapid convergence, further improved with FSSP-specific modifications. Extensive experiments validate its efficacy, outperforming pure GA, PSeOA, and other metaheuristics.
      PubDate: 2023-08-12
      DOI: 10.22190/FUME230615028M
      Issue No: Vol. 21, No. 2 (2023)
       
  • APPLICATION OF THE DIBR II – ROUGH MABAC DECISION-MAKING MODEL FOR
           RANKING METHODS AND TECHNIQUES OF LEAN ORGANIZATION SYSTEMS MANAGEMENT IN
           THE PROCESS OF TECHNICAL MAINTENANCE

    • Authors: Darko Božanić, Igor Epler, Adis Puška, Sanjib Biswas, Dragan Marinković, Stefan Koprivica
      Abstract: This paper presents a multi-criteria decision-making model based on the application of two methods, DIBR II and MABAC. The DIBR II method was used to define weight coefficients. The MABAC method was used to rank alternatives, and it was applied in a rough environment. Four experts were engaged in defining the criteria and alternatives as well as in the relation of criteria. The model was applied for ranking the methods and techniques of Lean organization systems management in the maintenance of technical systems of special purposes. At the end of the application was conducted a sensitivity analysis which proved the stability of the obtained results.
      PubDate: 2023-08-11
      DOI: 10.22190/FUME230614026B
      Issue No: Vol. 21, No. 2 (2023)
       
  • MODELLING AND SIMULATION OF NONLINEAR DYNAMIC FLOW FIELD AND TEMPERATURE
           FIELD OF DEPYROGENATION TUNNEL

    • Authors: Yizhi Wang, Quanmin Zhu, Tao Huang, Xiaodong Han, Min Lin
      Abstract: Nonlinear dynamics plays a crucial role particularly in equipment validation of preparation production, validation results of which will significantly influence the results and period of drug registration in drug production processes. In this research, the flow field and temperature field simulation, calculation and analysis are creatively carried out in terms of depyrogenation tunnel, a very popular preparation drying-sterilization equipment in pharmaceutical processes with strong dynamic characteristics. After construction of 3D model of this equipment using Catia and mesh generation applying ANSYS, the computational fluid dynamic (CFD) method and verification of irrelevance method are carried out regarding 6.05 million of meshes to identify the flow velocity model and heat transfer model inside the equipment, to further provide methodology for pharmaceutical process validation and to further optimize the design of control methods. After calculation and simulation, the low-velocity vortices of different sizes inside the hood and the drying chamber are identified, which could cause vials to fall down; meanwhile, vials that are farther away from the outlet receives less heat exchange effect, which would shrink the effective sterilization area, indicating an inadequate validation methodology in pharmaceutical processes.
      PubDate: 2023-04-05
      DOI: 10.22190/FUME221221011W
      Issue No: Vol. 20, No. 3 (2023)
       
  • PEAKFORCE QUANTITATIVE NANOMECHANICAL MAPPING FOR SURFACE ENERGY
           CHARACTERIZATION ON THE NANOSCALE: A MINI-REVIEW

    • Authors: Heebo Ha, Sebastian Müller, Roelf-Peter Baumann, Byungil Hwang
      Abstract: Surface energy characterization is important to design the fabrication process of reliable electronic devices. Surface energy is influenced by various factors such as surface functionality and morphology. Owing to the high surface-to-volume ratio, surface energy at the nanoscale can be different from that of the bulk. However, the conventional methods for characterization of surface energy such as a sessile drop or Washburn methods cannot be used for nanoscale samples, owing to the limited volume for characterization. Recently, surface energy characterization on the nanoscale using atomic force microscopy (AFM) with Peak Force-Quantitative Nanomechanical Mapping (PF-QNM) imaging mode has been proposed. The nanoscale AFM tips measure the adhesion forces at the nanoscale, which are converted into surface energy through pre-calibrated curves. Successful surface energy characterization of nanoscale metal samples using AFM with the PF-QNM method has been reported previously. This mini-review discusses the recent progress on surface energy characterization at the nanoscale using AFM with the PF-QNM method. The fundamentals of the PF-QNM mode are introduced, and the results of surface energy characterization are summarized. Consequently, the future research direction for surface energy characterization at the nanoscale is discussed.
      PubDate: 2023-01-15
      DOI: 10.22190/FUME221126001H
      Issue No: Vol. 20, No. 3 (2023)
       
 
JournalTOCs
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
Email: journaltocs@hw.ac.uk
Tel: +00 44 (0)131 4513762
 


Your IP address: 44.210.151.5
 
Home (Search)
API
About JournalTOCs
News (blog, publications)
JournalTOCs on Twitter   JournalTOCs on Facebook

JournalTOCs © 2009-
JournalTOCs
 
 
  Subjects -> ENGINEERING (Total: 2656 journals)
    - CHEMICAL ENGINEERING (235 journals)
    - CIVIL ENGINEERING (237 journals)
    - ELECTRICAL ENGINEERING (176 journals)
    - ENGINEERING (1316 journals)
    - ENGINEERING MECHANICS AND MATERIALS (426 journals)
    - HYDRAULIC ENGINEERING (56 journals)
    - INDUSTRIAL ENGINEERING (98 journals)
    - MECHANICAL ENGINEERING (112 journals)

MECHANICAL ENGINEERING (112 journals)                     

Showing 1 - 95 of 95 Journals sorted alphabetically
Accurate: Journal of Mechanical Engineering and Science     Open Access   (Followers: 10)
Acta Mechanica     Hybrid Journal   (Followers: 23)
Acta Mechanica et Automatica     Open Access   (Followers: 1)
Acta Mechanica Solida Sinica     Hybrid Journal   (Followers: 8)
Acta Universitatis Sapientiae Electrical and Mechanical Engineering     Open Access   (Followers: 2)
Advanced Energy Materials     Hybrid Journal   (Followers: 34)
Advanced Engineering Research     Open Access   (Followers: 2)
Advanced Sensor and Energy Materials     Open Access   (Followers: 29)
Advances in Mechanical Engineering     Open Access   (Followers: 199)
Advances in Tribology     Open Access   (Followers: 14)
American Journal of Mechanical Engineering     Open Access   (Followers: 66)
Archive of Mechanical Engineering     Open Access   (Followers: 82)
Archives of Civil and Mechanical Engineering     Hybrid Journal   (Followers: 4)
Australian Journal of Mechanical Engineering     Hybrid Journal   (Followers: 5)
BMC Mechanical Engineering     Open Access   (Followers: 4)
Chinese Journal of Mechanical Engineering     Open Access   (Followers: 1)
Chinese Journal of Mechanical Engineering : Additive Manufacturing Frontiers     Open Access   (Followers: 6)
Emission Control Science and Technology     Hybrid Journal   (Followers: 2)
European Mechanical Science     Open Access   (Followers: 1)
Facta Universitatis, Series : Mechanical Engineering     Open Access   (Followers: 1)
Friction     Open Access   (Followers: 5)
Frontiers of Mechanical Engineering     Hybrid Journal   (Followers: 18)
Human Factors and Mechanical Engineering for Defense and Safety     Hybrid Journal   (Followers: 2)
Ingeniería Mecánica     Open Access   (Followers: 3)
International Journal of Dynamics and Control     Hybrid Journal   (Followers: 9)
International Journal of Engineering Materials and Manufacture     Open Access   (Followers: 3)
International Journal of Manufacturing, Materials, and Mechanical Engineering     Full-text available via subscription   (Followers: 19)
International Journal of Material and Mechanical Engineering     Open Access   (Followers: 34)
International Journal of Mechanical and Materials Engineering     Open Access   (Followers: 7)
International Journal of Mechanical Engineering Education     Full-text available via subscription   (Followers: 13)
International Journal of Mechanical Sciences     Hybrid Journal   (Followers: 17)
International Journal of Mechatronics and Automation     Hybrid Journal   (Followers: 5)
International Journal of Metrology and Quality Engineering     Full-text available via subscription   (Followers: 3)
International Journal of Microwave Engineering and Technology     Full-text available via subscription   (Followers: 7)
International Journal of Powertrains     Hybrid Journal   (Followers: 2)
Iranian Journal of Science and Technology, Transactions of Mechanical Engineering     Hybrid Journal  
JMST Advances     Hybrid Journal  
Journal of Aircraft     Hybrid Journal   (Followers: 288)
Journal of Applied Mechanical Engineering     Open Access   (Followers: 16)
Journal of Computational and Applied Research in Mechanical Engineering     Open Access   (Followers: 2)
Journal of Energy, Mechanical, Material and Manufacturing Engineering     Open Access   (Followers: 4)
Journal of Mechanical Design and Testing     Open Access   (Followers: 4)
Journal of Mechanical Engineering     Open Access   (Followers: 85)
Journal of Mechanical Engineering and Automation     Open Access   (Followers: 10)
Journal of Mechanical Engineering Research     Open Access   (Followers: 11)
Journal of Mechanical Engineering Science and Technology     Open Access   (Followers: 3)
Journal of Mechanical Science and Technology     Hybrid Journal   (Followers: 9)
Journal of Mechanical, Civil and Industrial Engineering     Open Access   (Followers: 11)
Journal of Mechanics     Hybrid Journal   (Followers: 9)
Journal of Mechatronics, Electrical Power, and Vehicular Technology     Open Access   (Followers: 6)
Journal of Microelectromechanical Systems     Hybrid Journal   (Followers: 43)
Journal of Strain Analysis for Engineering Design     Hybrid Journal   (Followers: 6)
Journal of the Brazilian Society of Mechanical Sciences and Engineering     Hybrid Journal   (Followers: 3)
Journal of the Mechanical Behavior of Biomedical Materials     Hybrid Journal   (Followers: 11)
Jurnal Taman Vokasi     Open Access  
Latin American Journal of Solids and Structures     Open Access   (Followers: 3)
Lubricants     Open Access   (Followers: 3)
Material Design & Processing Communications     Hybrid Journal   (Followers: 1)
Mechanical Engineering and Design     Open Access   (Followers: 90)
Mechanical Engineering Research     Open Access   (Followers: 20)
Mechanical Sciences     Open Access   (Followers: 11)
Mechanical Systems and Signal Processing     Hybrid Journal   (Followers: 8)
Media Mesin : Majalah Teknik Mesin     Open Access  
Mekanika : Majalah Ilmiah Mekanika     Open Access  
Modern Mechanical Engineering     Open Access   (Followers: 66)
MTZextra     Full-text available via subscription  
Open Mechanical Engineering Journal     Open Access   (Followers: 2)
Proceedings of the Institution of Mechanical Engineers Part A: Journal of Power and Energy     Hybrid Journal   (Followers: 8)
Proceedings of the Institution of Mechanical Engineers Part B: Journal of Engineering Manufacture     Hybrid Journal   (Followers: 17)
Proceedings of the Institution of Mechanical Engineers Part C: Journal of Mechanical Engineering Science     Hybrid Journal   (Followers: 25)
Proceedings of the Institution of Mechanical Engineers Part D: Journal of Automobile Engineering     Hybrid Journal   (Followers: 14)
Proceedings of the Institution of Mechanical Engineers Part E: Journal of Process Mechanical Engineering     Hybrid Journal   (Followers: 2)
Proceedings of the Institution of Mechanical Engineers Part F: Journal of Rail and Rapid Transit     Hybrid Journal   (Followers: 11)
Proceedings of the Institution of Mechanical Engineers Part G: Journal of Aerospace Engineering     Hybrid Journal   (Followers: 42)
Proceedings of the Institution of Mechanical Engineers Part H: Journal of Engineering in Medicine     Hybrid Journal   (Followers: 3)
Proceedings of the Institution of Mechanical Engineers Part I: Journal of Systems and Control Engineering     Hybrid Journal   (Followers: 16)
Proceedings of the Institution of Mechanical Engineers Part J: Journal of Engineering Tribology     Hybrid Journal   (Followers: 34)
Proceedings of the Institution of Mechanical Engineers Part K: Journal of Multi-body Dynamics     Hybrid Journal   (Followers: 4)
Proceedings of the Institution of Mechanical Engineers Part L: Journal of Materials: Design and Applications     Hybrid Journal   (Followers: 11)
Proceedings of the Institution of Mechanical Engineers Part M: Journal of Engineering for the Maritime Environment     Hybrid Journal   (Followers: 3)
Proceedings of the Institution of Mechanical Engineers Part N: Journal of Nanoengineering and Nanosystems     Hybrid Journal   (Followers: 3)
Proceedings of the Institution of Mechanical Engineers Part O: Journal of Risk and Reliability     Hybrid Journal   (Followers: 7)
Proceedings of the Institution of Mechanical Engineers Part P: Journal of Sports Engineering and Technology     Hybrid Journal   (Followers: 4)
Quantitative InfraRed Thermography Journal     Hybrid Journal  
Research Papers Faculty of Materials Science and Technology Slovak University of Technology     Open Access   (Followers: 4)
Science China Physics, Mechanics & Astronomy     Hybrid Journal   (Followers: 4)
Simetris : Jurnal Teknik Mesin, Elektro dan Ilmu Komputer     Open Access  
Strojarstvo     Full-text available via subscription  
Strojn?cky casopis ? Journal of Mechanical Engineering     Open Access  
Technical Reports Mechanical Engineering     Open Access   (Followers: 4)
Transactions of the Canadian Society for Mechanical Engineering     Hybrid Journal   (Followers: 8)
Trends in Mechanical Engineering & Technology     Full-text available via subscription   (Followers: 4)
Tribologia : Finnish Journal of Tribology     Open Access   (Followers: 2)
Universal Journal of Mechanical Engineering     Open Access   (Followers: 17)
Проблемы машиностроения - Mechanical Problems     Open Access   (Followers: 1)

           

Similar Journals
Similar Journals
HOME > Browse the 73 Subjects covered by JournalTOCs  
SubjectTotal Journals
 
 
JournalTOCs
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
Email: journaltocs@hw.ac.uk
Tel: +00 44 (0)131 4513762
 


Your IP address: 44.210.151.5
 
Home (Search)
API
About JournalTOCs
News (blog, publications)
JournalTOCs on Twitter   JournalTOCs on Facebook

JournalTOCs © 2009-