Subjects -> ENGINEERING (Total: 2844 journals)
    - CHEMICAL ENGINEERING (247 journals)
    - CIVIL ENGINEERING (248 journals)
    - ELECTRICAL ENGINEERING (176 journals)
    - ENGINEERING (1448 journals)
    - ENGINEERING MECHANICS AND MATERIALS (451 journals)
    - HYDRAULIC ENGINEERING (62 journals)
    - INDUSTRIAL ENGINEERING (97 journals)
    - MECHANICAL ENGINEERING (115 journals)

ENGINEERING (1448 journals)            First | 1 2 3 4 5 6 7 8     

Showing 1401 - 1205 of 1205 Journals sorted alphabetically
Transportation Research Record : Journal of the Transportation Research Board     Full-text available via subscription   (Followers: 32)
Transportmetrica A : Transport Science     Hybrid Journal   (Followers: 8)
Trends in Applied Sciences Research     Open Access   (Followers: 1)
Tribology in Industry     Open Access   (Followers: 4)
Tribology International     Hybrid Journal   (Followers: 46)
Tribology Letters     Hybrid Journal   (Followers: 7)
Tribology Transactions     Hybrid Journal   (Followers: 35)
Trilogía     Open Access  
Turkish Journal of Engineering     Open Access  
Turkish Journal of Engineering and Environmental Sciences     Open Access   (Followers: 1)
Türkiye Arazi Yönetimi Dergisi     Open Access  
Türkiye Coğrafi Bilgi Sistemleri Dergisi     Open Access  
Türkiye Fotogrametri Dergisi     Open Access  
Türkiye İnsansız Hava Araçları Dergisi     Open Access  
U.Porto Journal of Engineering     Open Access  
UKH Journal of Science and Engineering     Open Access  
Ultramicroscopy     Hybrid Journal   (Followers: 4)
Uludağ University Journal of The Faculty of Engineering     Open Access  
Uluslararası Mühendislik ve Teknoloji Araştırmaları Dergisi / International Journal of Engineering and Technology Research     Open Access  
Universal Journal of Applied Science     Open Access   (Followers: 2)
Universal Journal of Engineering Science     Open Access   (Followers: 2)
Universidad, Ciencia y Tecnología     Open Access   (Followers: 1)
Usak University Journal of Engineering Sciences     Open Access  
Utilities Policy     Hybrid Journal   (Followers: 2)
Vacuum     Hybrid Journal   (Followers: 12)
Vestnik of Don State Technical University     Open Access  
Vibration     Open Access   (Followers: 16)
Virtual and Physical Prototyping     Hybrid Journal   (Followers: 4)
Visualization in Engineering     Open Access   (Followers: 1)
Walailak Journal of Science and Technology     Open Access  
Waste and Biomass Valorization     Hybrid Journal   (Followers: 3)
Waste Management Series     Full-text available via subscription   (Followers: 1)
Waves in Random and Complex Media     Hybrid Journal  
Waves, Wavelets and Fractals - Advanced Analysis     Open Access  
Wear     Hybrid Journal   (Followers: 27)
Welding in the World     Hybrid Journal   (Followers: 7)
West African Journal of Industrial and Academic Research     Open Access   (Followers: 2)
World Electric Vehicle Journal     Open Access  
World Journal of Engineering and Technology     Open Access  
World Journal of Environmental Engineering     Open Access   (Followers: 3)
World Pumps     Full-text available via subscription   (Followers: 2)
World Science and Technology     Full-text available via subscription  
Yugra State University Bulletin     Open Access   (Followers: 1)
ZDM     Hybrid Journal   (Followers: 1)
Zede Journal     Open Access   (Followers: 1)
Zeitschrift für Arbeitswissenschaft     Hybrid Journal  
Zeitschrift fur Energiewirtschaft     Hybrid Journal  
Вісник Приазовського Державного Технічного Університету. Серія: Технічні науки     Open Access  

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Zede Journal
Number of Followers: 1  

  This is an Open Access Journal Open Access journal
ISSN (Print) 0514-6216
Published by African Journals Online Homepage  [263 journals]
  • Multi-stage and multi-response process optimization in Taguchi Method

    • Authors: Birhanu Beshah, Shewit Woldegebriel, Goytom Desta
      Abstract: Product quality is all about reducing variations of key performance indicators. However, product manufacturing often, requires multiple processes with multiple indicators, which make reducing variation a complex task. There are tools used to optimize a single stage process independently which ensure local optimization only. However, there is no clear approach that leads to system optimization.The aim of this study is, therefore, to develop a tested approach to optimize multi-stage and multi-response industrial process. For this purpose, a conceptual model with its optimization procedure was developed and then validated by taking Harar Brewery as a case. Variations under each stage were evaluated before and after optimization. As a result, the new model with its optimization procedure is proven to ensure the stability of a process with reduced variation. Keywords: Taguchi Method, Process Optimization, Brewery
      PubDate: 2016-08-16
      Issue No: Vol. 33 (2016)
       
  • Investigation on applicability of substitute beam-column frame for design
           of reinforced concrete sway frames

    • Authors: Abrham Ewnetie, Girma Zerayohannes
      Abstract: The paper deals with the evaluation of the sway frame moment magnification provision for the design of slender reinforced concrete columns in sway frames according to EBCS 2: 1995.A special feature of the moment magnification method in EBCS 2: 1995 is the introduction of the concept of substitute frame for the determination of the storey buckling load. The evaluation is carried out by comparing the magnified column moment with the corresponding values obtained from the more rigorous second order iterative P-Δ second order analysis.The magnified column moments are also compared with the corresponding values determined using the ACI’s sway moment magnification provision. The results of the evaluation show that the sway moment magnification method according to EBCS 2: 1995 yields design moments close to the iterative P-Δ solutions. However, the results lie on the unsafe side and the percentage deviation is found to be the highest for irregular frames.Keywords: Sway frames, slender columns, substitute beam-column frame, ETABS, critical load, sway moment magnification, second-order analysis
      PubDate: 2016-08-16
      Issue No: Vol. 33 (2016)
       
  • Supplementing conventional site investigation techniques of earthworks and
           sub-grade soils with geophysical investigation in road design

    • Authors: Ashenafi Tsegaselassie, Samuel Tadesse
      Abstract: In the construction of road projects in Ethiopia, one of the main factors giving rise to significant delays and both increases and decreases in project cost is the huge discrepancy in earthworks quantities between the design and the construction phases. This causes budgetary uncertainties and questioning of design documents. The aim of this paper is to assess the benefits of geophysical investigations in reducing the earthworks discrepancies.Records have been collected of projects at the design stage and projects under construction, particularly drawing on information along sections of deep cut. The findings from three projects are discussed in detail and geophysical investigations have been undertaken in the field along three sections of a selected project to allow reassessment of earthworks quantities.It is concluded that lack of detailed site investigation is a major reason for cost imprecision and delays in several road projects as a result of discrepancies in earthworks quantities. It is further concluded that careful planning and implementation of ground investigations supplemented with results from a geophysical investigation would yield cost effective results and reduce the uncertainties by greatly improving earthworks predictions at the design stage. Keywords: Earthwork, Sub-grade, Geophysics, Site Investigation
      PubDate: 2016-08-16
      Issue No: Vol. 33 (2016)
       
  • Investigating performance of vertical carbonizing kiln for briquette
           production

    • Authors: Lulseged Belay, Nigus Gabbiye
      Abstract: Carbonization experiments of rice husk were carried in pilot cylindrical fluidized bed carbonizing kiln using nitrogen gas as fluidization medium.Husk was collected from rice miller, Amhara Region Wereta Town, Ethiopia and screened by standard sieves. To initate and supply the necessary heat, controlled amount of air is supplied from compressor.Gate valve and air flow meter was installed for regulating and measuring the amount of air.K-type thermocouples and pyrometer were used to monitor progress of bed and external drum temperature distribution. Kiln performance was investigated via studying the effects of air flow rate, air contact time and particle size.The phycochemical properties of raw material and its char were determined by proximate analysis. The results obtained demonistrate that air flow rate, air contact time and particle size have significant effect not on conversion efficiency of kiln and char composition but it affects both carbonization time and temperature distribution of kiln.Generally, char yield varies from 24.87 to 32.49%. Furthermore, lower air flow rate, shorter air contact time and higher particle size is suitable to achiev maximum char yield with 48.63% fixed carbon. Besides, char yield were improved from 18 to 27% to the range of 24.87 to 32.49%.Keywords: Carbonization, Rice Husk, Kiln Performance, Char Yield, Fluidization
      PubDate: 2016-08-16
      Issue No: Vol. 33 (2016)
       
  • The effect of sample preparation and testing procedure on the geotechnical
           properties of tropically weathered residual laterite soils of Ethiopia

    • Authors: Addiszemen Teklay, Messele Haile, Alemayehu Teferra, E.J. Murray
      Abstract: Identification and classification of the various grades of tropically weathered residual soils for engineering purposes is a problem that geotechnical engineers repeatedly face in Ethiopia, as well as in other tropical countries. This paper investigates the applicability of conventional laboratory testing, classification and evaluation systems, which were principally developed for temperate climate sedimentary soils, to the tropically weathered residual laterite soils of Ethiopia. The construction of a new highway project from Bako to Nejo in western Ethiopia, with extensive laterite soils, forms a study site that has allowed detailed inspection and sampling of soils for this research project. Testing of these laterite deposits has revealed that they are sensitive to handling and disturbance. Revisions to sample preparation and testing procedures are considered necessary and are proposed in utilizing these soils for civil engineering purposes.It is concluded that the plasticity chart should be regarded as a guidance tool only for evaluating the likely properties of laterite soils. It should not be used to classify them based on conventional methods without due deference to their genesis. Unlike soils for which the Casagrande Plastcity Chart, as adopted in the United States Classification System (USCS), was developed, laterite soils that plot well below the A-line generally have good engineering properties. A combination of classification based on structure, mineralogical composition, and geo-morphological impact on soil formation together with conventional classification systems is suggested and can result in a good indication of the engineering properties of laterites.Keywords: laterite, air-dried, as-received, oven-dried, sesquioxide, mineralogy
      PubDate: 2016-08-16
      Issue No: Vol. 33 (2016)
       
  • Quality of computerized blast load simulation for non-linear dynamic
           response analysis of framed structures

    • Authors: Shifferaw Taye, Abdulaziz Kassahun
      Abstract: A numerical study has been conducted to determine the quality of blast load simulation for non-linear dynamic response analysis of framed structures subjected to such loads at various stand-off distances with due consideration to the provisions and requirements of Unified Facility Criteria UFC 2005.Simulation has been carried out using a general-purpose, commercial software system and a special-purpose, blast-specific software product to assess and compare the quality of response prediction of such computational models.Nonlinear dynamic analysis has been performed using a three-dimensional model of a structure and its corresponding elasto-plastic analysis on its single-degree-of-freedom representation. The results obtained for different positions of explosive charges under the two analysis models have been presented.A comparative analysis of the results indicates that the quality of blast load simulation and associated structural response depend both on the analysis model of choice and the stand-off distances. It was concluded that the quality of response prediction by commonly available general purpose software systems is of inferior quality and that special-purpose software systems need to be implemented when dealing with generalized impulse loads as the standoff distance for the detonation is getting closer to the structure.Keywords: blast loads, Unified Facility Criteria, elasto-plastic analysis, nonlinear analysis, single-degree-of freedom, stand-off distance
      PubDate: 2016-08-16
      Issue No: Vol. 33 (2016)
       
 
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