International Journal of Engineering - Transactions C: Aspects最新文献_第8页

A Game Theoretic Approach for Sustainable Power Systems Planning in Transition 转型期可持续电力系统规划的博弈论方法

International Journal of Engineering - Transactions C: Aspects Pub Date : 2017-01-30 DOI: 10.5829/idosi.ije.2017.30.03c.09

N. Neshat, M. Amin-Naseri, Hamed Shakouri Ganjavi

引用次数: 4

A Network Design Model for a Resilient Closed-Loop Supply Chain with Lateral Transshipment 具有横向转运的弹性闭环供应链网络设计模型

International Journal of Engineering - Transactions C: Aspects Pub Date : 2017-01-26 DOI: 10.5829/idosi.ije.2017.30.03c.07

Morteza Ghomi-Avili, R. Tavakkoli-Moghaddam, G. Jalali, A. Jabbarzadeh

引用次数: 27

DESIGN AND SIMULATION OF A MOVING-MAGNET-TYPE LINEAR SYNCHRONOUS MOTOR FOR ELECTROMAGNETIC LAUNCH SYSTEM 电磁发射系统动磁式直线同步电机的设计与仿真

International Journal of Engineering - Transactions C: Aspects Pub Date : 2017-01-05 DOI: 10.5829/idosi.ije.2017.30.03c.04

H. M. Cheshmehbeigi, A. Khanmohamadian

{"title":"DESIGN AND SIMULATION OF A MOVING-MAGNET-TYPE LINEAR SYNCHRONOUS MOTOR FOR ELECTROMAGNETIC LAUNCH SYSTEM","authors":"H. M. Cheshmehbeigi, A. Khanmohamadian","doi":"10.5829/idosi.ije.2017.30.03c.04","DOIUrl":"https://doi.org/10.5829/idosi.ije.2017.30.03c.04","url":null,"abstract":"The Electromagnetic Aircraft Launch System (EMALS) offers significant benefits to the aircraft, ship, personnel, and operational capabilities. EMALS has such advantages as high thrust, good controllability, reusable, etc., as a launching motor, a double-side plate Permanent Magnet Linear Synchronous Motor (PMLSM) can provide high instantaneous thrust. This paper presents the design and analysis of the moving-magnet-type permanent magnet linear synchronous motor (PMLSM). A detailed analytical modeling based on Maxwell’s equations is presented for analysis and design of PMLSM with Halbach array. In order to improve the thrust characteristics of PMLSM, the structural characteristics and magnetic field are analyzed. The results show an enhancement in the motor performance. Finally, we have used 2-D nonlinear time-stepping transient finite element method to demonstrate validity of the analytical analysis and parametric search is used for multi-objective optimization of PMLSM. Using Finite Element Analysis (FEA), the effects of the parameters on the thrust and thrust ripple waveforms are analyzed.","PeriodicalId":14066,"journal":{"name":"International Journal of Engineering - Transactions C: Aspects","volume":"123 1","pages":"351-356"},"PeriodicalIF":0.0,"publicationDate":"2017-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85662312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Ultrasound Assisted In Situ Esterification of Rubber Seeds Oil for Biodiesel Production (RESEARCH NOTE) 超声辅助橡胶籽油原位酯化生产生物柴油(研究笔记)

International Journal of Engineering - Transactions C: Aspects Pub Date : 2016-11-11 DOI: 10.5829/idosi.ije.2016.29.12c.01

Hadiyanto Hadiyanto, W. Widayat, A. Duma

引用次数: 4

Removal of Congo Red Anionic Dye from Aqueous Solution Using Polyaniline/TiO2 and Polypyrrole/TiO2 Nanocomposites: Isotherm, Kinetic, and Thermodynamic Studies 用聚苯胺/TiO2和聚吡咯/TiO2纳米复合材料从水溶液中去除刚果红阴离子染料:等温线、动力学和热力学研究

International Journal of Engineering - Transactions C: Aspects Pub Date : 2016-11-11 DOI: 10.5829/idosi.ije.2016.29.12c.04

Marjan Tanzifi, K. Karimipour, M. Najafifard, S. Mirchenari

{"title":"Removal of Congo Red Anionic Dye from Aqueous Solution Using Polyaniline/TiO2 and Polypyrrole/TiO2 Nanocomposites: Isotherm, Kinetic, and Thermodynamic Studies","authors":"Marjan Tanzifi, K. Karimipour, M. Najafifard, S. Mirchenari","doi":"10.5829/idosi.ije.2016.29.12c.04","DOIUrl":"https://doi.org/10.5829/idosi.ije.2016.29.12c.04","url":null,"abstract":"The present study seeks to investigate the capacity of polyaniline/titanium dioxide (PAn/TiO2) and Polypyrrole/titanium dioxide (PPy/TiO2) nano-adsorbents to adsorb Congo red anionic dye (CR) from aqueous solution. The variables effective in CR adsorption, including adsorbent dose, pH of the solution, contact time, initial dye concentration, and temperature were examined. The study yielded the result that a decrease in pH increases the adsorption capacity of both nano-adsorbents. The adsorbent dose and optimum contact time of PAn/TiO2 and PPy/TiO2 nano-adsorbents were [0.1 gr and 20 min] and [0.2 gr and 60 min], respectively. The adsorption kinetics was studied with the pseudo-first-order, pseudo-second-order, and Weber–Morris equations. Kinetic studies showed that the CR adsorption process onto both nano-adsorbents followed the pseudo-second-order kinetics model, which indicates that the adsorption process is chemisorption-controlled. Langmuir, Freundlich, Temkin, and Dubinin–Radushkevich Isotherms were applied to the adsorption data to estimate the maximum adsorption capacity as well as the intensity and energy of adsorption. The experimental data were best represented by Freundlich isotherm model compared to the other models. Analysis of data with Dubinin-Radushkevich isotherm showed that the adsorption of CR onto both nano-adsorbents is a chemisorption process. Moreover, Thermodynamic parameters such as ∆G, ∆H, and ∆S were calculated. The results showed that the adsorption of CR onto both nano-adsorbents was spontaneous and exothermic.","PeriodicalId":14066,"journal":{"name":"International Journal of Engineering - Transactions C: Aspects","volume":"4 1","pages":"1659-1669"},"PeriodicalIF":0.0,"publicationDate":"2016-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84147799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 13

Stress Intensity Factor Determination in Functionally Graded Materials, Considering Continuously Varying of Material Properties 考虑材料性能连续变化的功能梯度材料应力强度因子的确定

International Journal of Engineering - Transactions C: Aspects Pub Date : 2016-11-11 DOI: 10.5829/idosi.ije.2016.29.12c.13

M. Najimi, F. H. Aboutalebi, H. Beheshti

{"title":"Stress Intensity Factor Determination in Functionally Graded Materials, Considering Continuously Varying of Material Properties","authors":"M. Najimi, F. H. Aboutalebi, H. Beheshti","doi":"10.5829/idosi.ije.2016.29.12c.13","DOIUrl":"https://doi.org/10.5829/idosi.ije.2016.29.12c.13","url":null,"abstract":"In this paper, the plates made of functionally graded material (FGM) with and without a crack are numerically simulated, employing the finite element method (FEM). The material property variations are defined to be fully continuous; therefore, the elements can be as small as required. For this purpose, variations of the material properties are applied in both the integration points and in the nodes by implementing a subroutine in the ABAQUS software and hence, the stress field in the singular points such as crack tip is accurately achieved. First, the stresses in the plate without a crack are numerically determined and the accuracy of FGM behavior is validated. Then, the J-integral is investigated and the stress intensity factor (SIF) of the plate with a crack is calculated, using the strain energy release rate (SERR) and the J -integral. In the following, dependency of the J-integral on the path is studied and the results are compared with the contour independent J-integral. Finally, it is shown that if the selected path limits toward zero, the results of the J-integral, the SERR, and the contour independent J-integral are all the same. This is due to considering the continuously varying of material properties and the effect of fining the mesh at the crack tip.","PeriodicalId":14066,"journal":{"name":"International Journal of Engineering - Transactions C: Aspects","volume":"7 1","pages":"1741-1746"},"PeriodicalIF":0.0,"publicationDate":"2016-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72801823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Free Vibration Analysis of Functionally Graded Materials Non-uniform Beams 功能梯度材料非均匀梁的自由振动分析

International Journal of Engineering - Transactions C: Aspects Pub Date : 2016-11-11 DOI: 10.5829/idosi.ije.2016.29.12c.12

S. Hashemi, H. Khaniki

引用次数: 8

Modification of Equivalent Consumption Minimization Strategy for a Hybrid Electric Vehicle 混合动力汽车等效能耗最小化策略的改进

International Journal of Engineering - Transactions C: Aspects Pub Date : 2016-11-11 DOI: 10.5829/idosi.ije.2016.29.12c.15

M. Delkhosh, M. S. Foumani

引用次数: 1

Influence of Operating Variables on Performance of Nanofiltration Membrane for Dye Removal from Synthetic Wastewater Using Response Surface Methodology 响应面法研究操作变量对纳滤膜去除合成废水染料性能的影响

International Journal of Engineering - Transactions C: Aspects Pub Date : 2016-11-11 DOI: 10.5829/idosi.ije.2016.29.12c.03

M. Moradi, A. Zinatizadeh, S. Zinadini

{"title":"Influence of Operating Variables on Performance of Nanofiltration Membrane for Dye Removal from Synthetic Wastewater Using Response Surface Methodology","authors":"M. Moradi, A. Zinatizadeh, S. Zinadini","doi":"10.5829/idosi.ije.2016.29.12c.03","DOIUrl":"https://doi.org/10.5829/idosi.ije.2016.29.12c.03","url":null,"abstract":"The textile industry is a water intensive industry that produces a large amount of highly colored wastewater that must be properly treated before disposal or reuse. In the present study, to verify the possibility of reusing textile wastewater with nanofilteration (NF), an attempt was made to treatment of synthetic reactive dye aqueous solution by commercial nanofiltration membrane. Experiments were conducted based on a central composite face-centered design and analyzed using response surface methodology. Dye concentration (10-50 mg/l), operating pressure (3–6 bar), and initial pH of the dye solution (3–9) were selected as the operating variables to analyze, optimize and model the process. The results showed that alkaline and acidic condition led to considerable increase in dye rejection and permeation flux that high quality of water could be recovered. This study clearly showed that response surface methodology was one of the suitable methods to optimize the operating conditions and maximize the dye removal. Also, the commercial NF membranes could be efficiently applied in the dye removal process in a one-stage process.","PeriodicalId":14066,"journal":{"name":"International Journal of Engineering - Transactions C: Aspects","volume":"94 1","pages":"1650-1658"},"PeriodicalIF":0.0,"publicationDate":"2016-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86289045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Deblocking Joint Photographic Experts Group Compressed Images via Self-learning Sparse Representation 基于自学习稀疏表示的联合摄影专家组压缩图像块化

International Journal of Engineering - Transactions C: Aspects Pub Date : 2016-11-11 DOI: 10.5829/idosi.ije.2016.29.12c.07

S. A. Amiri, H. Hassanpour

引用次数: 1