Journal of Management and Engineering Integration, v.12 no.2
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Item Journal of Management & Engineering Integration, v.12 no.2 (Winter)(Association for Industry, Engineering and Management Systems (AIEMS), 2019-12) Association for Industry, Engineering and Management Systems (AIEMS)Item Mobile device espionage(Association for Industry, Engineering and Management Systems (AIEMS), 2019-12) Carstens, Deborah S.; Mahlman, John; Miller, Jeffrey; Shaffer, MatthewMalware and hacking activities are growing among today's most popular mobile devices. These security risks are prompting companies, federal facilities, and other institutions to enact policies aimed at mitigating the amount of espionage and illegal events that can transpire on a cell phone or other mobile device. With all of the new devices and applications, publicly available, new security-related vulnerabilities continue to arise. These devices and applications are targets for attacks from malicious outside sources. Each day provides a new potential threat aimed at taking advantage of some security exploit in cell phones and mobile devices. Security analysts and experts are at a disadvantage in this war against threats because they are fighting a war without clear rules. The focus of this literature review is on cell phone and electronic device vulnerabilities, espionage in the workplace, and security solutions. This will provide an understanding of risks, threats and solutions that exist in the modern era of cell phones and mobile devices.Item A genetic algorithm for battery-based energy storage transportation using railway(Association for Industry, Engineering and Management Systems (AIEMS), 2019-12) Abdallah, Khaled S.; Taha, Raghda B.The use of renewable energy sources has increased significantly in the past few years. Due to the intermittent nature of the renewable energy sources, planning and distribution of this energy is considered a challenging process. Energy storage systems have a great potential towards these challenges as it can store energy from different sources and then distribute it to regions with high demand such as in the case of Battery Based Energy Storage System. In this paper, the impact of railway Battery Based Energy Storage System on the power grid is considered. A genetic algorithm is proposed for solving the dispatching of rechargeable battery-based energy storage train vehicles to satisfy the charging/discharging requirements of rural areas not directly connected to the power grid due to being temporary locations such as rural cities under construction and military rural campuses. A multi-objective model is proposed that has the following objectives: 1) to minimize the transportation cost associated with the train route; and 2) to minimize the number of Battery Storage vehicles. A Genetic Algorithm is developed and tested using numerical examples. The results show the effectiveness of the proposed algorithm in providing good solutions using the minimum number of Battery storage vehicles in a cost-effective energy distribution system.Item Effects of design parameters on dimensional accuracy of parts made on a mini 3-axis CNC router(Association for Industry, Engineering and Management Systems (AIEMS), 2019-12) Radharamanan, R.Computer numerical control (CNC) is a very broad term that encompasses a variety of types of machines used in industrial automation - all with different sizes, shapes, and functions. But the easiest way to think about CNC is to simply understand that it is all about using a computer as a means to control a machine that carves useful objects from solid blocks of material. Traditional CNC machines are expensive, complicated, and typically only found in large manufacturing companies that can afford them. Small hobbyist CNC machines can run anywhere from 7,000 dollars and higher; professional machines can cost millions of dollars! Now, for a fraction of the cost - under 800 dollars one can own a Mini 3-axis CNC machine and cut, drill, mill, and carve objects of one's imagination. In this paper, a Mini 3-axis CNC router was assembled and tested for machining different materials such as plastic and wood. Simple shapes of circles (diameter, d = 1") and squares (side, a = 1") were cut using the CNC router. G-Code programs were developed to cut the required circles and squares. A digital caliper was used to measure the diameter of the circles and the side of the squares. Data were collected for a 2k factorial design experiments considering 2-levels for parameters: spindle speed, feed rate, cut depth, object shape, and material. Statistical analyses were performed to determine the effects of chosen parameters on the dimensional accuracy of the parts made. The results indicated that the parameters material, object shape, and cut depth have significant effects on the dimensional accuracy of the parts made.Item Application of group control charts for multiple parts manufacturing(Association for Industry, Engineering and Management Systems (AIEMS), 2019-12) Abdulaziz, Abdulaziz; Ribas, Clovis S.; Weheba, Gamal S.In many manufacturing processes, multiple identical parts are made in parallel during a single run. Different inspectors may inspect similar parts, and several assembly lines may produce similar products. These scenarios involve multiple stream processes, where a different set of control charts is traditionally required to monitor the performance of each stream over time. As the number of streams increases, applications become unrealistic. Group control charts offer a more viable alternative. This paper presents a review of group charting techniques and highlights recent developments. The paper presents a case study to demonstrate the steps to be followed in selecting among alternative charting techniques. It is hoped that this work guides future applications and encourages quality professionals to select charts better suited to their needs.