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Global Journal of Researches in Engineering最新文献

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Implementation of Six Sigma to Minimize Defects in Sewing Section of Apparel Industry in Bangladesh 实施六西格玛以减少孟加拉服装业缝制环节的缺陷
Global Journal of Researches in Engineering Pub Date : 2019-06-26 DOI: 10.34257/gjrejvol22is3pg1
Jaglul Hoque Mridha, Shahanur Hasan, M. Shahjalal, F. Ahmed
{"title":"Implementation of Six Sigma to Minimize Defects in Sewing Section of Apparel Industry in Bangladesh","authors":"Jaglul Hoque Mridha, Shahanur Hasan, M. Shahjalal, F. Ahmed","doi":"10.34257/gjrejvol22is3pg1","DOIUrl":"https://doi.org/10.34257/gjrejvol22is3pg1","url":null,"abstract":"The garments industries which are traditionally operated are facing lots of problems such as low productivity, poor line balancing, high rejection, high defects, unable to achieve lead time. So defects minimization is the first condition of reducing cost and increasing productivity. The work aims to minimize the defect percentage by using DMAIC approach of Six Sigma methodology. The study is carried out in Ananta Apparels Ltd. by using DMAIC methodology of six sigma to minimize the defect rate in sewing section. Five phases of the DMAIC methodology named Define, Measure, Analyze, Improveand Control which indicates some critical defects such as stain, skip stitch, broken stitch, and slip out in the sewing section of Ananta Apparels Ltd. We applied various types of six sigma tools in different phases. The outcome of this study is very significant to implement in the sewing section of the apparel industry.","PeriodicalId":342934,"journal":{"name":"Global Journal of Researches in Engineering","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121986944","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: 1
MPPT Charge Controller Design in a Solar PV System Under Rapidly Changing Climate Condition 快速变化气候条件下太阳能光伏系统的MPPT充电控制器设计
Global Journal of Researches in Engineering Pub Date : 2019-05-09 DOI: 10.34257/GJREFVOL19IS1PG1
Mostafizur Rahman, M. W. Rahman
{"title":"MPPT Charge Controller Design in a Solar PV System Under Rapidly Changing Climate Condition","authors":"Mostafizur Rahman, M. W. Rahman","doi":"10.34257/GJREFVOL19IS1PG1","DOIUrl":"https://doi.org/10.34257/GJREFVOL19IS1PG1","url":null,"abstract":"This paper presents a detailed theoretical study of photovoltaic (PV) systems and their\u0000operation using the MPPT (Maximum Power Point Tracking) method and presents the simulation of photovoltaic modules validated by computer software simulation followed by an experimental setup of MATLAB R2017a. The first approach to build the performance of a photovoltaic solar panel is to use a maximum power point tracker in rapidly changing climatic conditions and use a DC-DC converter to maximize the output power. This framework can operate at the maximum power point MPP and produces its highest power in different irradiance conditions when the solar panels are partially shaded. The main perspectivesis design and simulation of a simple but efficient charge controller by utilizing maximum power point tracker for photovoltaic system and analysis results show that this MPPT system with perturb & observe (P&O) method and the DCDC Boost converter can significantly increase the efficiency and the performance of PV.","PeriodicalId":342934,"journal":{"name":"Global Journal of Researches in Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115520663","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: 0
A Look at the Uncertainty of Measuring The Fundamental Constants and the Maxwell Demon from the Perspective of the Information Approach 从信息方法看基本常数测量的不确定性和麦克斯韦妖
Global Journal of Researches in Engineering Pub Date : 2019-04-19 DOI: 10.34257/GJREAVOL19IS1PG1
B. Menin
{"title":"A Look at the Uncertainty of Measuring The Fundamental Constants and the Maxwell Demon from the Perspective of the Information Approach","authors":"B. Menin","doi":"10.34257/GJREAVOL19IS1PG1","DOIUrl":"https://doi.org/10.34257/GJREAVOL19IS1PG1","url":null,"abstract":"This paper proposes a new framework for calculating the discrepancy of a model and the observed technological process or physical phenomenon. It offers powerful tools for all measurement methods applied in technology, engineering and experimental physics. Since the studies that validate and verificate the models of the phenomenon are still complex, they need to be combined into one total measure. Existing methods used in almost all literature up to the present time implicitly suggest that the use of supercomputers and the latest mathematical statistical methods allows achieving high accuracy very close to the boundaries of Heisenberg principle. To compare methodologies for improving models, we propose a new metric called comparative uncertainty. This allows us to prove that there is a limit to the achievable discrepancy between the model and the object under study.","PeriodicalId":342934,"journal":{"name":"Global Journal of Researches in Engineering","volume":"29 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131002694","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
Nonlinear Analysis of Edge Joint on T-shaped Concrete-filled Steel Tubular Column-H-shaped Steel Beam Seismic Performance based on ABAQUS 基于ABAQUS的t形钢管混凝土柱- h形钢梁边缝抗震性能非线性分析
Global Journal of Researches in Engineering Pub Date : 2019-03-23 DOI: 10.34257/GJREEVOL19IS1PG1
Yadong Bian, Yi Tian, Yi Zhao, Long Cheng, Cheng Hong, Zhicheng Gao, Jiliang Li
{"title":"Nonlinear Analysis of Edge Joint on T-shaped Concrete-filled Steel Tubular Column-H-shaped Steel Beam Seismic Performance based on ABAQUS","authors":"Yadong Bian, Yi Tian, Yi Zhao, Long Cheng, Cheng Hong, Zhicheng Gao, Jiliang Li","doi":"10.34257/GJREEVOL19IS1PG1","DOIUrl":"https://doi.org/10.34257/GJREEVOL19IS1PG1","url":null,"abstract":"To comprehensively analyze the seismic performance and failure modes of edge joint, which is composed of T-shaped concrete-filled steel tubular column and H-shaped steel beam, the joint was imposed through low frequency cycling loading. Model of edge joint was established by the nonlinear finite element software ABAQUS. The effect of different parameters, such as axial compression ratio and side plate extension length, on the seismic performance were simulated. The results indicates that the buckling of the steel beam occurs at the lateral extension of the side plate due to the strengthening of the side plate; the axial compression ratio has no obvious effect on the ultimate load; the increase of the side plate length can effectively improve the ultimate load.","PeriodicalId":342934,"journal":{"name":"Global Journal of Researches in Engineering","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122579879","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: 1
A Mathematical Formulation for Mixed Model Two Sided Assembly Line Balancing Problem to Consider Boundary Conditions 考虑边界条件的混合模型双面装配线平衡问题的数学表达式
Global Journal of Researches in Engineering Pub Date : 2019-02-18 DOI: 10.34257/GJREGVOL19IS1PG17
A. Yadav, P. Verma, S. Agrawal
{"title":"A Mathematical Formulation for Mixed Model Two Sided Assembly Line Balancing Problem to Consider Boundary Conditions","authors":"A. Yadav, P. Verma, S. Agrawal","doi":"10.34257/GJREGVOL19IS1PG17","DOIUrl":"https://doi.org/10.34257/GJREGVOL19IS1PG17","url":null,"abstract":"Purpose: The main aim of this paper is to develop a new mathematical model for the mixed model two-sided assembly line balancing problem (MTALBP) generally occurs in plants producing large-sized high-volume products such as buses or trucks.\u0000Methodology: In this paper, the proposed mathematical model is applied to solve two-sided mixed-model assembly line balancing problem with lower and upper bound. The proposed mathematical model is solved using a branch and bound algorithm on LINGO 17.0 solver. \u0000Findings: Based on the computational result, line efficiency that is obtained by reducing single and mated stations of the assembly line is good as compare to the theoretical minimum number of stations and reduces computational time by applying boundary conditions.\u0000Practical implications: Since the problem is well known as an NP-hard problem a benchmark study problem is solved,and the result of the study can be beneficial for assembly of the mixed model products in term of minimizing mated stations as well as computational time.\u0000Originality: By literature review, t his paper is first to address mixed-model two-sided assembly line balancing problem with bounds using the exact solution approach.","PeriodicalId":342934,"journal":{"name":"Global Journal of Researches in Engineering","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123394116","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: 2
Impact of Fabric Density, Color and Composition of Plain weave Fabric on Ultraviolet Protective Factor 平纹织物密度、颜色及成分对紫外线防护系数的影响
Global Journal of Researches in Engineering Pub Date : 2019-01-30 DOI: 10.34257/GJREJVOL19IS1PG13
Marzia Islam, Tarifun Akter, J. Ferdush, Kamrunnahar Kamrunnahar
{"title":"Impact of Fabric Density, Color and Composition of Plain weave Fabric on Ultraviolet Protective Factor","authors":"Marzia Islam, Tarifun Akter, J. Ferdush, Kamrunnahar Kamrunnahar","doi":"10.34257/GJREJVOL19IS1PG13","DOIUrl":"https://doi.org/10.34257/GJREJVOL19IS1PG13","url":null,"abstract":"In thisstudy, the effect of fabric density and different colors (black and red) on ultraviolet protection factor of woven fabric investigated. The fabric of different composition (100% cotton, 60/40 CVC), two color (black, red) and various density (Ends per inch, Picks per inch) collected. Then UPF rating was measured by spectrophotometer in vitro method. Experimental result showed that higher the fabric density and weight; higher the protection from ultraviolet rays. Besides, it also revealed that black fabric has more UV protection ability than the red one. Another finding of this study is that polyester content increases the UPF value.","PeriodicalId":342934,"journal":{"name":"Global Journal of Researches in Engineering","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129070515","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: 1
Effect of Scouring and Bleaching Agents on whiteness Index and Bursting Strength of Cotton Knitted Fabric 练漂剂对棉针织物白度指数和破强力的影响
Global Journal of Researches in Engineering Pub Date : 2019-01-30 DOI: 10.34257/GJREJVOL19IS1PG23
M. Hossain, A. Hossain, Palash Saha, M. Alam
{"title":"Effect of Scouring and Bleaching Agents on whiteness Index and Bursting Strength of Cotton Knitted Fabric","authors":"M. Hossain, A. Hossain, Palash Saha, M. Alam","doi":"10.34257/GJREJVOL19IS1PG23","DOIUrl":"https://doi.org/10.34257/GJREJVOL19IS1PG23","url":null,"abstract":"This paper shows the effect of different bleaching agent on whiteness index and bursting strength of the cotton knitted fabric. Bleaching process uses three types of bleaching agents namely hydrogen peroxide (H2O2), sodium hypochlorite (NaOCl) and calcium hypochlorite Ca(OCl)2 with varying their concentration and these are 1.5 g/l, 2.5 g/l, 3.5 g/l, 4.5 g/l, and 5.5 g/l. In the same time, scouring agent was caustic soda, and its concentration for all the bleaching agents was same. It is obvious that with the increase of bleaching agent concentration, whiteness index increases, and bursting strength reduces.","PeriodicalId":342934,"journal":{"name":"Global Journal of Researches in Engineering","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117015635","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: 5
Remote Health Monitoring System using Wireless Body Area Network 基于无线体域网络的远程健康监测系统
Global Journal of Researches in Engineering Pub Date : 2019-01-30 DOI: 10.34257/GJREJVOL19IS1PG1
M. Islam, Sazzad Hossain Rafi, M. Miah
{"title":"Remote Health Monitoring System using Wireless Body Area Network","authors":"M. Islam, Sazzad Hossain Rafi, M. Miah","doi":"10.34257/GJREJVOL19IS1PG1","DOIUrl":"https://doi.org/10.34257/GJREJVOL19IS1PG1","url":null,"abstract":"The rapid increase of wireless technologies and body area networks has enabled the continuous healthcare monitoring of patients from a remote location using various sensors. This paper describes a remote health monitoring system using WBAN where different sensors are used to collect a patient’s vital signs. Once the data is received, the captured data are evaluated by the Arduino and sent to the patient’s Android Smartphone using a Bluetooth module and a newly developed android application named Health Monitoring App. Data can be accessed by the patient himself, by doctor or patient’s family members. In critical conditions such as when body temperature and pulse rate goes beyond a predefined value or patient fall down, then application from patient’s smart phone triggers a message to deliver to the doctor or relatives with the location of the patient using built-in GPS in patient’s phone. This remote health monitoring system is very feasible and cost-effective for a developing country like Bangladesh.","PeriodicalId":342934,"journal":{"name":"Global Journal of Researches in Engineering","volume":"236 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116293960","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: 6
Control Unit for a Two-Wheel Self-Balancing Robot 一种两轮自平衡机器人控制单元
Global Journal of Researches in Engineering Pub Date : 2019-01-30 DOI: 10.34257/gjrejvol19is1pg7
D. Jayakody, K.P.G.C. Sucharitharathna
{"title":"Control Unit for a Two-Wheel Self-Balancing Robot","authors":"D. Jayakody, K.P.G.C. Sucharitharathna","doi":"10.34257/gjrejvol19is1pg7","DOIUrl":"https://doi.org/10.34257/gjrejvol19is1pg7","url":null,"abstract":"A self-balancing personal transporter which is based on the inverted pendulum concept has sufficient potential to provide solutions for the upcoming global issues in the transportation industry. However due to the expensive price range which the self-balancing scooters are introduced at and few safety issues, this concept has failed in reaching the hands and becoming popular among the majority of the society. Therefore this research paper consists of a comprehensive literature review on the existing models of the self-balancing transporter scooters, possible ways to reduce the initial cost of implementing a control unit for self-balancing transporter vehicles and methods to address the issues which generate along with the proposed cost-reduction methods. Real-time comparison of Kalman and Complementary filtering processes are performed to sort out the optimum algorithm to estimate the true angle of the inclination of the self-balancing prototype. Similarly several forms of control system implementation are compared through simulations and real-time experiments to obtain the ideal motor response for variations in the position of the prototype.","PeriodicalId":342934,"journal":{"name":"Global Journal of Researches in Engineering","volume":"160 Pt 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128759043","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
Fostering Residential Demand Response through Developing Proactive and Elastic Demand Approaches. An Overview DR 通过发展前瞻性和弹性需求方法促进住宅需求响应。容灾概述
Global Journal of Researches in Engineering Pub Date : 2018-12-04 DOI: 10.34257/gjrefvol18is5pg19
Muhammad Hussain, Yan Gao, Zhihong Xu
{"title":"Fostering Residential Demand Response through Developing Proactive and Elastic Demand Approaches. An Overview DR","authors":"Muhammad Hussain, Yan Gao, Zhihong Xu","doi":"10.34257/gjrefvol18is5pg19","DOIUrl":"https://doi.org/10.34257/gjrefvol18is5pg19","url":null,"abstract":"Demand response (DR) is one of the major stakeholders in the smart grid and has been used as an energy reconciler between supply and demand. After a literature overview, the importance of the paper is enhanced by having a theoretical and behavioral-based analysis of DR in power systems. In this work, the potential factors that influence more DR among customers and the residential market as a whole have been discussed. The customers’ elastic demand approach can pave the way for adapting a responsive demand mechanism that ensures the system reliability and cost effective measures. Alternatively, this approach can make the program more effective and supportive in serving the social welfare as whole.","PeriodicalId":342934,"journal":{"name":"Global Journal of Researches in Engineering","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132568711","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: 1
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