{"title":"Challenges hindering development of small scale of biodiesel Production in South Africa","authors":"S. Thaba, C. Mbohwa","doi":"10.1109/IEOM.2015.7093714","DOIUrl":"https://doi.org/10.1109/IEOM.2015.7093714","url":null,"abstract":"The interest in renewable resources has seen a focus on the production of biodiesel in South Africa as an alternative source of energy. While this sector show huge potential for economic growth, employment creation and the production of alternative energy, the sector is faced with many challenges. Looking at the case study of the Western Cape biodiesel plants, the paper discusses challenges faced by the few emerging biodiesel producers. The paper further highlights the positive impact of biodiesel production even at such small scale. The paper argues that biodiesel production offers huge opportunities for the South African economy, suggesting that government should consider supporting local players in the sector to expand their businesses and to expand opportunities for economic growth.","PeriodicalId":410110,"journal":{"name":"2015 International Conference on Industrial Engineering and Operations Management (IEOM)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126354967","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}
{"title":"An alternative framework for managing engineering change","authors":"M. Mutingi, C. Mbohwa, H. Mapfaira","doi":"10.1109/IEOM.2015.7093835","DOIUrl":"https://doi.org/10.1109/IEOM.2015.7093835","url":null,"abstract":"Effective engineering change management (ECM) procedures are very important over the whole life cycle of every engineering change (EC), from EC proposal to implementation and documentation. However, the success of an EC procedure depends on the amount of focus on the critical areas of the EC project. The purpose of this research to develop an alternative ECM framework based on critical success factors of ECM. The study follows through three steps: (i) identify the common focus areas of ECM, (ii) identify, from past empirical studies, the critical success factors for ECM, and (iii) develop a proposed framework that incorporates the identified critical success factors for ECM. The proposed ECM framework provides practitioners with a change management process that incorporate ECM critical success factors, to guide in implementation of ECM projects.. This is anticipated to increase the chance of success for the ECM projects.","PeriodicalId":410110,"journal":{"name":"2015 International Conference on Industrial Engineering and Operations Management (IEOM)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121063094","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}
{"title":"Hierarchical structuring of organizational performance using interpretive structural modeling","authors":"Asil Nehad Abdel Jawad, Hamdi A. Bashir","doi":"10.1109/IEOM.2015.7093829","DOIUrl":"https://doi.org/10.1109/IEOM.2015.7093829","url":null,"abstract":"Today's intense competition forces organizations to examine how they can improve performance as they seek to enhance their competitiveness. In order to design and implement an effective program for performance improvement, the interrelations among performance criteria and factors affecting them need to be understood. For this purpose, this study used interpretive structural modeling to represent the interrelationships among seven performance criteria and 19 factors in a simple, hierarchical structure model. The bottom level of this structure contains 12 factors, namely employee selection, employee training , work environment, employee incentives, organizational culture, leadership style, efficiency, size of organization, organizational/commercial resources, product life cycle, internationalization, and employee satisfaction. This mean that any action improving performance must start from these factors. This study's findings will be beneficial for organizations that are planning to enhance their performance.","PeriodicalId":410110,"journal":{"name":"2015 International Conference on Industrial Engineering and Operations Management (IEOM)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116227897","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}
{"title":"The effects of organizational innovation on operational performance and other types of innovation","authors":"N. Mohamad, S. Kamaruddin, U. S. Purwanto","doi":"10.1109/IEOM.2015.7093930","DOIUrl":"https://doi.org/10.1109/IEOM.2015.7093930","url":null,"abstract":"The objective of this study is to examine the interrelationship between four types of innovation capabilities, mainly organizational, product, process and marketing innovation capability and to assess the impact of these innovations capability types on the operational performance of manufacturing SMEs. A survey method was used to collect data involving 124 Indonesian manufacturing SMEs. Structural equation modeling and relevant statistical methods were then used for analysis. It is found that organizational innovation capability is positively associated with product, process, and marketing innovation capabilities. These four types of innovation capability simultaneously are also related to the operational performance. In addition, it is found that organizational innovation capability is indirectly correlated with the improvement in operational performance.","PeriodicalId":410110,"journal":{"name":"2015 International Conference on Industrial Engineering and Operations Management (IEOM)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125172479","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}
{"title":"The next 50 years of industrial management and engineering","authors":"H. Butuner","doi":"10.1109/IEOM.2015.7093944","DOIUrl":"https://doi.org/10.1109/IEOM.2015.7093944","url":null,"abstract":"Three interwoven threads of background trace the path that leads to the challenges and questions about IE: Where is IE practiced, what outcomes are expected from the profession, and what techniques form the skills IEs bring to an IE practice. Accordingly, finding answers for the next 50 years of industrial management and engineering, discussions have been done with distinguished and authoritative industrial engineers, managers, and educators with international experience in manufacturing, distribution, office and service work. The purpose of the paper was to provide guidance for young people entering the industrial engineering profession. Primary goal was to identify trends, directions and likely changes in the field and profession that may be helpful in career planning. A secondary goal was to help current practitioners and educators adapt to future demands. To students, I hope that you will find the paper insightful, stimulating and useful as you plan your education and your future career in industry. To educators, I hope that the reflections, predictions and discussions contained here will help you in developing our next generation of professionals. To practicing managers and engineers, I hope that you also will find value and guidance as you plan for continued personal and professional development.","PeriodicalId":410110,"journal":{"name":"2015 International Conference on Industrial Engineering and Operations Management (IEOM)","volume":"792 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123003303","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}
{"title":"Life-cycle cost simulation and optimization modeling for coastal structures using Markov Chains and Genetic Algorithms","authors":"Ayman H. El Hakea, S. Abu-Samra","doi":"10.1109/IEOM.2015.7228103","DOIUrl":"https://doi.org/10.1109/IEOM.2015.7228103","url":null,"abstract":"While extensive research has been carried out on the management of various types of infrastructure assets, limited research was allocated to coastal structures. The rapid world demographic growth especially in low-lying areas within close range to the shoreline over the past centuryas well as global climate change have given more importance to coastal infrastructure management. Climate change has increased storm intensities while decreasing storm return periods; imposing further risks to life and property. The aim of this research is to provide a modeling methodology for deterioration prediction, and optimization of repair, maintenance, and rehabilitation costs of various sorts of coastal protection structures. The coastal protection structures in Alexandria, Egypt, represent the case study. An Asset Inventory Database for Alexandria's coastal assets was developed, comprising 43 structures occupying an approximate length of 18.50 km. Established visual inspection and condition rating procedures were followed to obtain a current Structural Condition Index and a Structural Condition Matrix for each reach and each structure, considering a single inspection point in 2013. Structural Indices and Structural Condition Matrices (SCM's) are classified into severity ranges. Transition probabilities between structural condition ranges were calculated using backward analysis considering an excellent structural condition at the year of construction. Such probabilities were then utilized to formulate the structure's Markov Chain transition probability matrix, enabling the prediction of future deterioration. Integration of single-time random events, namely intermediate and design storms; was also performed on the future deterioration forecast. Maintenance and repair policies and their associated costs were determined, according to which a Genetic-Algorithm-based Life-Cycle Cost (LCC) optimization modeling was constructed with the aim to optimize maintenance and repair cost for the next 50 years, all while achieving the minimum reliability of structures. Results of the optimization are then presented collectively for the entire group of coastal structures within the study area.","PeriodicalId":410110,"journal":{"name":"2015 International Conference on Industrial Engineering and Operations Management (IEOM)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131467873","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}
{"title":"Boosting students' proficiency in thermodynamics via e-learning","authors":"W. Ahmed, Ali H. Al Marzouqi","doi":"10.1109/IEOM.2015.7093778","DOIUrl":"https://doi.org/10.1109/IEOM.2015.7093778","url":null,"abstract":"E-learning is used to enhance students' skills in the thermodynamics course. Phase change of substances is considered as the core of this course that the students face at the early stages of their study in the college of engineering at UAE University. Any misunderstanding of the topic will be reflected on the students' understanding the subsequent subjects of the course and for the other courses that they need to take later. In the present study, an iPad application was used to create the required material for the topic phase change of substances. In addition, a special video production software was adopted to reproduce the material in the form of a video in order to have an accessible reference at any time. The video can also be enhancement by adding interactive questions. The produced video was distributed and explained to the students and the students were given a project in which they had to produce a video explaining one of the topics in the course. Feedback from the students were collected and analyzed.","PeriodicalId":410110,"journal":{"name":"2015 International Conference on Industrial Engineering and Operations Management (IEOM)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115137261","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}
V. Kalashnikov, Felipe J. Castillo-Pérez, Aaron Arevalo-Franco, N. Kalashnykova
{"title":"Consistent conjectural variations equilibrium in a human migration model","authors":"V. Kalashnikov, Felipe J. Castillo-Pérez, Aaron Arevalo-Franco, N. Kalashnykova","doi":"10.1109/IEOM.2015.7093772","DOIUrl":"https://doi.org/10.1109/IEOM.2015.7093772","url":null,"abstract":"In this paper, we develop a human migration model using the concept of conjectural variations equilibrium (CVE). In contrast to previous works we extend the model to the case where the conjectural variations coefficients may be not only constants, but also (continuously differentiable) functions of the total population at the destination and of the group's fraction in it. Moreover, we allow these functions to take distinct values at the abandoned location and at the destination. As an experimental verification of the proposed model, we develop a specific form of the model based upon relevant population data of a three-city agglomeration at the boundary of two Mexican states: Durango (Dgo.) and Coahuila (Coah.) Namely, we consider the 1980-2005 dynamics of population growth in the three cities: Torreón (Coah.), Gómez Palacio (Dgo.) and Lerdo (Dgo.), and propose utility functions of four various kinds for each of the three cities. After having collected necessary information about the average movement and transportation costs for each pair of the cities, we apply the above-mentioned human migration model to this example. Numerical experiments have been conducted revealing interesting results concerning the consistency of probable conjectural variations equilibrium states.","PeriodicalId":410110,"journal":{"name":"2015 International Conference on Industrial Engineering and Operations Management (IEOM)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133449898","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}
{"title":"Numerical assessment on makespan minimization by adopting NEH heuristics in permutation flow shop","authors":"Chong Zheng Ziao, S. Kamaruddin","doi":"10.1109/IEOM.2015.7093718","DOIUrl":"https://doi.org/10.1109/IEOM.2015.7093718","url":null,"abstract":"Permutation flow shop problem (PFSP) is one of the important subclass of scheduling, where the order in each process remains unchanged for all machines. Few algorithms have been developed for deciding the sequence of n jobs and m machines to minimize makespan in the flow shop. Throughout the last 30 years, the NEH heuristic developed by Nawaz, Enscore and Ham has been commonly regarded as the best heuristic for minimizing the makespan in permutation flow shops. This heuristic is basically divided into two main stages: generate an initial sequence with decreasing total processing time and insert into the schedule accordingly. In this paper, total of 50 flow-shop problems were solved with the number of machines and jobs being set at a range of 4 to 25. Whereas the process times of the jobs were randomly generated with range 1 to 10 using Microsoft Excel spreadsheet. Performance of the heuristic was validated using the relative percentage deviation (RPD) formula based on the makespan generated by CDS heuristic proposed by Campbell, Dudek and Smith. The generated results through Excel modeling showed that NEH heuristic outperforms CDS heuristic. This statement correspond with the previous studies. Therefore, the Excel modelling is said to be an encouraging direction for solving scheduling problems in future research.","PeriodicalId":410110,"journal":{"name":"2015 International Conference on Industrial Engineering and Operations Management (IEOM)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134028804","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}
{"title":"Rural electrification using a stand-alone photovoltaic system: Case study of Cameroon","authors":"A. Adam, Noha M. Galal, M. Hamad","doi":"10.1109/IEOM.2015.7093756","DOIUrl":"https://doi.org/10.1109/IEOM.2015.7093756","url":null,"abstract":"This paper studies the use of a stand-alone photovoltaic system as a means of electrifying a village in the Far North region of Cameroon. The village is currently relying on a diesel generator. The load demand covers electricity supply and water pumping for domestic and agricultural purposes. Sizing, design and cost analysis of a stand-alone photovoltaic system are carried out. The economic viability and environmental impact of the proposed system are investigated using RETScreen software. The results indicate that the proposed system introduces cost and emissions savings in comparison with the existing conventional electricity generation technology.","PeriodicalId":410110,"journal":{"name":"2015 International Conference on Industrial Engineering and Operations Management (IEOM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131887674","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}