Identification Of Measurement Technology For Online Recording Of Transients In Underground Residential Distribution System

Underground Residential Distribution (URD) power cables are aged due to electrical, thermal, mechanical, and environmental stresses during their service. The recent dielectric conditions of the cables are of much interest for utilities. The existing offline diagnostic method requires forceful disconnection of the URD cable for maintenance. Online recording and Fast Fourier Transform analysis of intentionally created transients in URD is one of the promising method to assess the current condition of the cable. For the bigger goal of developing an online power cable condition assessment, the measurement techniques which are required to be implemented has to be evaluated. In order for implementing the online measurement system, the requirements of the measurement system have to be identified at first. URD system model was simulated using Electro Magnetic Transient Program to identify the characteristics of induced transients. A list of requirements of the measurement system was created based on the simulation result

INVESTIGATIONS OF ANTIMICROBIAL AND PHYTOCHEMICAL ANALYSIS OF ARGEMONE MEXICANA MEDICINAL PLANT EXTRACTS AGAINST BACTERIA WITH GASTROINTESTINAL RELEVANCE

Objective: The objective of the study was to evaluate antibacterial potential and phytochemical analysis of various extracts of Argemone Mexicana.Methods: The antimicrobial activity of various extracts of A. Mexicana were analysed by using agar well disc diffusion method.Results: The ethanolic and methanolic extracst of A. mexicana had showed significant antimicrobial activity. Similar result was not observed in other four extracts. The higher content of reducing sugar, flavanoids, tannin, sterol, terpene and alkaloid were found in all the extracts of A. Mexicana are comparable with Amoxicillin.Conclusion: The results obtained from this study indicate that A. mexicana is a potential source of antimicrobial and thus could prevent many diseases. Keywords: A. mexicana, Antimicrobial activity, Phytochemical analysis, Infectious diseases, Medicinal plants and Plant extract

Personal characteristics of an entrepreneur and its influence on performance

This article explores the personal characteristics of an entrepreneur and its influence in performance. In our paper we mainly discussed, how personal characteristics of an entrepreneur influence on performance in the entrepreneurs/tip

Marketing mix and customer perception towards plastic furniture in Vavuniya district

This study attempts to analyze the impact of marketing mix and buyer’s characteristics on consumer perception towards plastic furniture in Vavuniya District. The marketing mix variables such as Product, Price, Place and Promotion were considered as independent variable and consumer perception (Decision making process) was considered as dependent variable. This study utilized One hundred customers, based on divisional secretariats in Vavuniya district from four divisions on the basis of random sampling method. Data were analyzed by using the SPSS 17 Package and percentage analysis to measure to what extend the dimension of marketing mix influence on customer perception of plastic furniture.The overall result of this study indicated that there was a positive relationship observed between marketing mix and consumer perception (β =0.768. p<0.01 respectively) and 88 % of consumers agreed that the marketing mix was highly influence on the consumer perception towards plastic furniture in Vavuniya distric

Generic competitive strategy and customer retention: a study of the supermarkets in vavuniya district

A supermarket is a large form of the traditional grocery store. It is a self-service shop offering a wide variety of food and household products, organized into aisles. It is larger in size and has a wider selection than a traditional grocery store, but is smaller and more limited in the range of merchandise than a hypermarket or big-box market. Supermarket focuses not only the cities but also the suburbs and villages. The Changes in social life, trends, technology have also significantly affected the industry. The reluctance that prevailed with people to buy from super markets at the beginning was gradually disappearing. Consequently, traditional retailers are now facing a great challenge of competing with existing super markets mainly to retain the customers by using some strategies. The objective of this study is to analysis the competitive strategy and customer retention of Supermarkets in Vavuniya District. Cost-leadership, differentiation, and focus are considered independent variables of this study and customer satisfaction, service quality, employees’ participation, and customer relations are considered as dependent variable. Data is collected from the customers of supermarkets in Vavuniya District. Totally 250 customers were selected as sample of this study based on their income above LKR 50000/=. Data were analyzed using the Statistical Package of Social Sciences (SPSS 16). Correlation and Regression analysis of independents and dependent variables were made in this study. The finding of present study indicated that the positive relationship between generic competitive strategy and customer retention were observed. But differentiation strategy is highly correlated with customer retention of supermarkets in Vavuniya District

Ovicidal, oviposition deterrent and larvicidal response of Anopheles stephensi Liston, 1901 to Lobophora variegata Lamouroux, 1817 from Tuticorin coast, Gulf of Mannar, India

The objective of the present study was to investigate the mosquito ovicidal, oviposition deterrent and larvicidal efficacy of hexane, benzene, chloroform, ethyl acetate and methanol extracts of, Lobophora variegata against malarial vector Anopheles stephensi. Among the five extract tested, the methanol extract was notable, which attained the 100 percent mortality at the concentration of 200.0 ppm and the hatchability rate ranged from 71.3 to 36.3 percent. In laboratory oviposition deterrent test, the extract of L. variegata greatly reduced the number of eggs deposited by gravid An. stephensi. The maximum and significant diminished fecundity in An. stephensi was observed with methanol extract which caused 76.15­–97.69% effective deterrence. Larvicidal response of An. stephensi was more susceptible in methanol extract. The LC50 ­value of methanol extract was 61.63 ppm and the Chi-square value were significant at p&lt;0.05 level. It is concluded, that the extract of L. variegata could be used in control of malarial vector An. stephensi

ASEAN as network governance: An alternative lens to evaluate policymaking and performance [version 2; peer review: 2 approved]

Background: This article offers a new perspective of the Association of Southeast Asian Nations (ASEAN) as network governance (NG) using the policy network theory (PNT) for the analysis. Methods: Two case studies were selected from the ASEAN Community to examine the applicability and effectiveness of NG in promoting ASEAN cooperation. These case studies were chosen due to their prominence and the prevalence of critical comments about their effectiveness in promoting cooperation. The content analysis utilised primary data from ASEAN reports, documents, research articles and processes, and studies on NG and policy networks. A literature review was conducted using online academic databases and ASEAN-related websites. The search covered the period from June 2019 to March 2021, with further searches conducted between January and July 2023. These data collection efforts provided a robust analysis of the case studies within the NG and ASEAN integration contexts. Results: The findings show ASEAN as a hybrid structure which has supported its survival and relevance. This approach provides legitimacy for ASEAN globally by purposefully adopting structures similar to the EU without the supranational elements. It also showcases ASEAN’s motivation for asserting its centrality. Adopting a hybrid structure has led to ASEAN's soft institutionalisation, driven by its norms and characterised by a less empowered secretariat, where the member states are the decision-makers and implementors of policies. It opens a pathway to recognising ASEAN states’ autonomy, where the actors’ will and interests affect decision-making and define performance. Conclusions: This article demonstrates NG's viability in promoting ASEAN's centrality in regional cooperation and institutional arrangements and allows for a nuanced assessment of its performance considering the context of the issue and ASEAN's history and emphasising the member states' primacy in policymaking. The NG framework contributes to ASEAN’s legitimacy, regional cooperation and performance despite its inherent limitations

MapReduce-iterative support vector machine classifier: novel fraud detection systems in healthcare insurance industry

Fraud in healthcare insurance claims is one of the significant research challenges that affect the growth of the healthcare services. The healthcare frauds are happening through subscribers, companies and the providers. The development of a decision support is to automate the claim data from service provider and to offset the patient’s challenges. In this paper, a novel hybridized big data and statistical machine learning technique, named MapReduce based iterative support vector machine (MR-ISVM) that provide a set of sophisticated steps for the automatic detection of fraudulent claims in the health insurance databases. The experimental results have proven that the MR-ISVM classifier outperforms better in classification and detection than other support vector machine (SVM) kernel classifiers. From the results, a positive impact seen in declining the computational time on processing the healthcare insurance claims without compromising the classification accuracy is achieved. The proposed MR-ISVM classifier achieves 87.73% accuracy than the linear (75.3%) and radial basis function (79.98%)

Fouling Mitigation Using Helixchanger Heat Exchangers

One of the major indeterminates in the design as well as operation of heat exchangers is the rate of fouling a select heat exchanger geometry would exhibit over the operation cycles. Gradual deterioration of heat exchanger performance due to the accumulation of fouling film on the heat transfer surface is often accounted for in the form of a fouling resistance, or commonly known as the fouling factor, while determining the heat transfer surface required for a specific heat duty. More often, the fouling mechanism responsible for the deterioration of heat exchanger performance is flow-velocity dependent. Maldistribution of flow, wakes and eddies caused by poor heat exchanger geometry can have detrimental effect on heat exchanger performance and reliability. Helixchanger heat exchangers have demonstrated significant improvements in the fouling behavior of heat exchangers in operation. In a Helixchanger heat exchanger, the quadrant shaped shellside baffle plates are arranged at an angle to the tube axis creating a helical flow pattern on the shellside. Uniform velocities and near plug flow conditions achieved in a Helixchanger heat exchanger, provide low fouling characteristics, offering longer heat exchanger run-lengths between scheduled cleaning of tube bundles. This article demonstrates the Helixchanger heat exchanger option in reducing the velocity-dependent fouling in heat exchangers