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  

  First | 1 2 3 4 5 6 7 8     

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Turkish Journal of Engineering
Number of Followers: 0  

  This is an Open Access Journal Open Access journal
ISSN (Online) 2587-1366
Published by DergiPark Homepage  [213 journals]
  • RHEOLOGICAL PARAMETER ESTIMATION OF CMC SOLUTIONS USING MAGNETIC RESONANCE
           IMAGING (MRI)

    • Authors: Guler Bengusu Tezel
      Abstract: In this study, theapplication of Magnetic Resonance Imaging (MRI) rheometry on the measurement ofcomplex fluid Carboxylmethyl cellulose (CMC) solutions (0.5%,1.0%,  1.5%, 2.0% w/w)  flow was described. Depending on CMC concentration,Power law or Herschel-Bulkley models gave the best fit according to MRI andconventional rheometer (CVO) results. Power Law model was  valid for 0.5% and 1.0% CMC (R2=0.9993-R2=0.9987and R2=0.9983-R2=0.9985 respectively by MRI and CVO). Onthe other hand, 1.5% and 2.0% CMC solutions  flow were well described by Herschel–Bulkleymodel (R2=0.9994-R2=0.9996 and R2=0.9986-R2=0.9981respectively by MRI and CVO). The MRI measurements agreed well with the CVOmeasurements.
      PubDate: Sat, 01 Sep 2018 00:00:00 +030
       
  • COMPARATIVE STUDY OF REGIONAL CRASH DATA IN TURKEY

    • Authors: Murat Özen
      Abstract: This study provides a comparative analysis of traffic safety in Turkeyacross the seven geographic regions over a 11 year time frame (2006 to 2016).The comparisons are performed in relative terms and absolute terms. Fataland/or injury (FI) crashes per million population and per million registeredvehicles were used to quantify safety. For the ordinal analysis, rates for theregions were ranked individually for each year as well as for the 11 years aggregated.An examination of the results indicated that the relative ranks of the regionswere stable over the study period. Depending on the safety measureused, the relative rankings of regions varied. It means that a region ranked at the top (high crash rate) for onesafety measure does not need to be ranked again at the top for other safetymeasure. For the cardinal analysis, thecomputed rates were used. These results were consistent with those from theordinal analysis, but showed greater variability in the rates over time, whichmeans that FI crash rates significantly increased over the time. A Geographic Information Systems based thematic maps were used to supportthese efforts.
      PubDate: Sat, 01 Sep 2018 00:00:00 +030
       
  • PERFORMANCE COMPARISON OF ANFIS, ANN, SVR, CART AND MLR TECHNIQUES FOR
           GEOMETRY OPTIMIZATION OF CARBON NANOTUBES USING CASTEP

    • Authors: Mehmet Acı; Çiğdem İnan Acı, Mutlu Avcı
      Abstract: Density Functional Theory (DFT) calculations used in the Carbon Nanotubes (CNT) design take a very long time even in the simulation environment as it is well known in the literature. In this study, the calculation time of DFT for geometry optimization of CNT is reduced from days to minutes using seven artificial intelligence-based and one statistical-based methods and the results are compared. The best results are achieved from ANFIS and ANN-based models and these models can be usedinstead of CNT simulation software with high accuracy.
      PubDate: Sat, 01 Sep 2018 00:00:00 +030
       
  • INVESTIGATION OF DISSOLUTION KINETICS OF ZINC AND MANGANESE FROM SPENT
           ZINC-CARBON BATTERIES IN SULPHURIC ACID SOLUTION

    • Authors: Tevfik Ağaçayak; Ali Aras
      Abstract: The aim of this study is toexamine the dissolution kinetics of zinc and manganese from spent zinc-carbon batteryin sulphuric acid solution. To determine the kinetics of dissolution of thezinc and manganese in sulphuric acid medium, different shrinking core modelswere applied to the dissolution recoveries obtained at variable temperatures.Kinetics analysis showed that the zinc and manganese dissolution from spentzinc-carbon battery could be described by diffusion from product layer. Theactivation energies (Ea) and Arrhenius constants for the dissolutionreactions were calculated.
      PubDate: Sat, 01 Sep 2018 00:00:00 +030
       
  • INVESTIGATION OF Ni-Mn BASED SHAPE MEMORY ALLOY VARIATIONS TRANSFORMATION
           TEMPERATURES

    • Authors: Ece Kalay; Anıl Erdağ Nomer, Mehmet Ali Kurgun
      Abstract: Shapememory alloys’ usage frequency and areas are increased day to day. It is seenthe different type and different characteristics in many industrial areas.Therefore, shape memory alloys, which are intelligent materials, are very fastto develop. The NiTi alloys, from these alloy types, are most commonly used dueto their low hysteresis range and biocompatibility. But production costs anddifficulties have led, investigators to investigate different alloy types.Shape memory alloys which produced with possibly cheaper elements, examined inresearchers with looking at their transformation temperatures.
      PubDate: Sat, 01 Sep 2018 00:00:00 +030
       
  • INVESTIGATION OF ULEXITE USAGE IN AUTOMOTIVE BRAKE FRICTION MATERIALS

    • Authors: Banu Sugözü
      Abstract: Theautomotive brake pads are multi-component composites made up of many materials.There are many studies in the literature exploring the use of many differentmaterial in brake pads. In this study, the use of ulexite which is acommercially valuable derivatives of boron that 65% of the total worldreservations exists in Turkey were researched for brake pad material. For thispurpose, three brake pad specimens containing ulexite differing in amount (3, 6and 9 wt.%) were produced by a conventional procedure for a dry formulationfollowing dry-mixing, pre-forming and hot pressing. The density of thespecimens was determined based on Archimedes principle in water. The surfacehardness of all brake pad specimens was measured using Rockwell hardnesstester. The friction performance of the brake pad specimens was determinedusing a real brake disc-type tester with grey cast iron. The weights of eachspecimen were taken before and after the friction test, and the specific wearrate was determined in accordance to the TSE 555 (1992) standard. The resultsshowed that all specimens are applicable to the industry, consistent with theliterature and suitable to the TS 555 standard. Also the results indicated thatulexite is an ideal material for brake pads.
      PubDate: Sat, 01 Sep 2018 00:00:00 +030
       
  • CRITICALITY CALCULATION OF A HOMOGENOUS CYLINDRICAL NUCLEAR REACTOR CORE
           USING FOUR-GROUP DIFFUSION EQUATIONS

    • Authors: Babatunde Michael Ojo; Musibau Keulere Fasasi, Ayodeji Olalekan Salau, Stephen Friday Olukotun, Mathew Ademola Jayeola
      Abstract: In this study, we present a general equation forFinite Difference Method Multi-group Diffusion (FDMMD) equations of acylindrical reactor core. In addition, we developed an algorithm which wecalled TUNTOB for solving the FDMMD equations, determined the fluxes at each ofthe mesh points and calculated the criticality of the four energy group. Thiswas with a view to using the four-group diffusion equations to estimate thecriticality of a cylindrical reactor core that will be accurate and locallyaccessible for nuclear reactor design in developing countries. The multi-groupdiffusion equations were solved numerically by discretization using the FiniteDifference Method (FDM) to obtain a general equation for a cylindrical reactor core. The fluxes ateach mesh point and the criticality of the four energy group were thendetermined. From the results obtained, we observed that an increment initeration led to an increase in the effective multiplication factor (Keff ) with a corresponding increase in the computationtime. A maximum effective multiplication factor was reached when the number ofiteration was 1000 and above. Having established the optimal number ofiterations, the effects of the mesh sizes on the computation examined revealedthat the values of Keff increases asthe mesh sizes becomes smaller until an optimal mesh size of 1 x 1 cm2was reached and further decrease in mesh sizes gave no further improvement inthe value of Keff . The Studyconcluded that the accuracy in the values of  Keff and the smoothness of the neutron distributioncurves in 3-D representations depend on the number of mesh points.
      PubDate: Sat, 01 Sep 2018 00:00:00 +030
       
 
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