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Vol 2 Issue 10

Volume  2  Issue  10

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Kiani mehdi, Alipour Reza,Habibi Hamed , Mosala Nezhad Amir Hosayn

Reviews on Microgrid Configuration and Dedicated Hybrid System Optimization Software tools

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Abstract: Connecting the electric grid to rural and remote areas is very uneconomicalto carry out. Moreover, the utility network is not designed to fulfill the growingneeds of the population and may be destabilized by newconsumers.Therefore, it is more economical to electrify those areas with a micro-grid bymeans of existingrenewable energy sources available locally. The micro-gridconfiguration represents the energy distribution architecture from theproducing sites to consumers and eventually the interconnection betweenseveral sites and several consumers. The design and study of such a gridconfiguration is realized using simulation tools and has to be considered fromthe system level with economical matters in addition to the technical aspects.As for the nd optimize hybrid systems.In this paper, an analysis of the current status of electrification in Laos ispresented. Then, a literature review of the existing micro-grid configuration ispresented and a case study of a typical rural, remoteand isolated village inLaos is simulated, using some of the selected software tools.

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AKIN-OSANAIYE Catherine Bukola, GABRIEL Adeyemi Francis, ALAJE Patience and OMONIYI Ahmed Olalekan

Effects of Different Storage Temperature on the Physicochemical Properties of Cooking Oils Available in Nigeria Markets

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Abstract: The assessment of vegetable oil in terms of stability is important for the determination of its shelf life as oil is expected to be of high quality during storage and up to the time of consumption and for other usage. In this study, physicochemical properties of oils were determined every two weeks interval by standard method of AOCS. The results obtained from this work showed that as time increased from week 0 to 6 weeks, the Acidity and Peroxide value, Saponification values increased while iodine values decreased in all the oils studied. The samples stored on the shelf exhibited the highest Acid values, Peroxide values, Saponification values throughout the period of storage followed by those stored inside the cupboard, the lowest Iodine values recorded were for those stored on the shelf. Based on the Acid value, Peroxide values and Iodine values, the samples stored in the refrigerator provided the best protection to the oil.

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G.C. Thilakarathna1, S.B. Navarathne, I. Wickramasinghe

Determination of Important Physical Properties and Water Absorption Capacity of Medium Type Improved Paddy Varieties of Sri Lanka

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Abstract: Four popular paddy varieties in Sri Lanka, BG 300, BG352, BG366 and AT307, were experimented in order to determine the important physical properties and water absorption capacities. Axial dimensions (length, width, thickness),1000 grain mass ,geometrical mean diameter, surface area ,volume, sphericity and aspect ratio were determined as the physical properties of paddy varieties. According to the research outcome, most of the physical properties were significantly different (p<0.05) among the varieties while some similarities (p>0.05) were also observed. To investigate the water absorption capacity of different paddy varieties in terms of moisture gain, the paddy varieties were immersed in hot water at 70 0C for 5 hours. Samples were drawn from respective paddy variety for every 30minutes in order to measure the moisture absorption. According to the results, during the initial stage of soaking, all paddy varieties illustrated rapid moisture increment. Afterward the rate of moisture increment was gradually declined and attained to the saturation point, where the moisture variations were insignificant (P>0.05) for paddy varieties. Until reaching to the saturation point, moisture absorption pattern of paddy varieties were significantly different (p<0.05).Results indicated that highest and lowest moisture increment was recorded by BG300 and BG366 respectively. The soaking time and varietal differences were also significantly influenced (P<0.05) on water absorption capacities.

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Sawant Kiran, Agrawal Rajesh

A Study of factors affecting Employee Engagement policies in Indian Nationalized Banks

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Abstract: This paper aims to study the employee engagement policies adopted and implemented by nationalized banks in India and their impact on the employee retention. Employee Engagement policies are of utmost importance so as to keep employees retained and to align their individual goals with the goals of organization. This research paper is an attitudinal study of the employees in four nationalized banks in India. The feedback of these employees is collected through questionnaire based on five points Likert scale. An attempt has been made to explore and analyze the significant factors of employee engagement policies which are directly affecting the retention of employees in the two nationalized banks in India. It is found that Compensation and work life balance conditions provided by private sector banks is more attractive than public sector banks.

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A. Jayachitra1, R. Vinodha

Control of Continuous Stirred Tank Reactor System using Hybrid Bacteria Foraging Optimization Algorithm

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Abstract: Bacterial Foraging Optimization (BFO) algorithm is one of the newly developed biologically inspired stochastic search technique based on mimicking the foraging behaviour of Escherichia coli (E. coli) bacteria. This paper focuses on the design and global tuning of Proportional Integral Controller (PID) controller parameters for Continuous Stirred Tank Reactor (CSTR) system to improve the steady state performance and robustness of the system using BFO algorithm. Due to its promising features such as high computational efficiency, easy implementation and stable convergence, it is widely applied to solve complex engineering optimization problems. A shortcoming of the BFO algorithm is, it depends on random search directions which may delay the search process in achieving global solution. But Particle Swarm Optimization Algorithm (PSO) has the ability to exchange social information and faster convergence for finding corresponding positions of bacteria in the search space, thereby the computational time is reduced. Therefore a hybrid approach involving PSO and BFO algorithm named as Hybrid Bacteria Foraging Optimization Algorithm (HBFO) is proposed in this paper, which combines advantages of both algorithms in order to get better optimization results. Performance indices like ISE, ITSE, IAE and ITAE are considered to guide HBFO algorithm for evaluating the optimally tuned values of controller parameters. It is obvious from the simulation results that the HBFO algorithm is efficient in achieving good set point tracking in the entire range of the CSTR process with the brilliancy of rejecting individual and combined loads.

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