International Journals of Multidisciplinary Research
Academy (IJMRA)

Abstract:
This paper deals with economical approach for power quality improving in multi feeder distribution system using interline converter custom power devices (I-CPDs) such as Interline dynamic voltage restorer (I-DVR). The main aim of this CPDs is required exchange real power from healthy feeder to faulty feeder in distribution system using common DC-link. This paper discussed the modeling of I-DVR and selection of capacitor rating and mitigate the power quality problems in multifeeder distribution systems. Simulation of the distribution system model is verified with MATLAB/Simulink to validate the proposed system.
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In this study, core samples of Permian shales of Raniganj field were analysed to evaluate their gas generation potential using Rock Eval pyrolysis techniques. The Total Organic Content (TOC) of the shale units of Barren Measures ranges from 3.75 wt% to 20.9 wt% whereas hydrogen index (HI) ranges from 58.45 to 125.34 mg HC/g TOC. Present study suggests early to late maturated (0.6 to 1%) organic matters in Barren Measures with gas prone type III kerogen. The study analysed the effect of burial history on the preservation and maturation of organic matters. The organic richness, kerogen type, thermal maturity and petrographic properties of the Permian shales are signifying fair to excellent gas generation potential.
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Decision tree is one of the simplest and widely used classification methods because it has least complexities but simple to use, understand and built. Therefore analysts from various disciplines prefer this algorithm. Decision tree can be viewed as an extended version of IF-THEN clause with inherited multi-levels of "IF" followed by a single "THEN". In this tree all levels of the "IF" forms rules (or patterns) and "THEN" gives the consequence. This paper presents a brief survey of popular and current techniques used in construction of decision tree, which also enlists some journey details of decision tree from historical to modern view. After considering potential advantages of DTC's over single-state classifiers, the subjects of structure design, feature selection at each internal node are discussed. To achieve higher performance cutting off the unimportant edges of decision tree, some pruning methods are also discussed. Finally we mentioned some comparative details among the splitting criterion and among pruning methods.
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A discrete element method (DEM) study is conducted to investigate the mixing and heat-transfer characteristics of spherical particles under slipping mode and flow regimes of a rotating tumbler.In this paper, heat transfer in rotating drums operated in a Cataracting mode is assessed. The focus is on direct heating operations at low to medium temperatures, where thermal radiation is unimportant. It is shown that heat transfer from the covered wall to the particle bed is the dominant mechanism in supplying heat to the bed. . If heat is supplied to the boundaries of the particle bed rapidly, and macroscopic particle mixing is rapid, then heat transfer within the bed may be controlled by either or both of particle –wall heat transfer and heat conduction within individual particles depending upon the physical properties of particles. Although theoretical analyses are principally used in this work. This paper addresses heat conduction in granular systems under Cataracting mode in a rotating cylinder. The influence of material properties on the contact heat transfer coefficient between the covered wall surface and the solid bed was investigated.
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Abstract:
The popularity of Data mining is ever-increasing in different research arenas due to its never-ending applications and methodologies to extract the information in proper manner .Health care industry produces huge quantity of data that control complex information relating to patients and their health conditions. Data mining techniques have the capabilities to determine unknown patterns or relations among the objects in the medical data. There is a lengthy record of diabetic registries and databases with systematically composed patient information. This Paper scrutinize one diabetic patients behavior data set, performing a method of classification by decision Tree Induction and diagnosing and reducing the diabetes risks by using Neural Networks and Fuzzy logic system. Data mining can facilitate healthcare organizations to expect trends in the patient conditions and their behaviors. Healthcare data mining provides innumerable possibilities for hidden pattern examination from these data sets. These pattern can be used to establish diagnoses, reduces the risks for the patients in healthcare organizations. The proposed Approach first deals with decision tree induction method to diagnose the risks of the diabetes patients whose ages are in between 30 and 60.Then outline the neural network and reduce the risks by adjusting the weights of the parameters and illustrate the results using the fuzzy logic. Every individual data mining Techniques provides different immense health care applications. While combining one or more data mining techniques, can get ideal skilled data and precise results .This research shows that, pooled techniques of mining such as Decision tree, neural networks and fuzzy logic approaches assist to afford enhanced and perfect treatment for reducing the risks of the diabetes patients
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Abstract:
The use of digital media is increasing day by day. In a family from the youngest to the oldest almost everyone use smartphones, laptops, computers and social media. It is the most common activity of today's children, adolescents and adults. Any website or blog that allows social interaction, broadly socialization is considered as a social media site. It also includes social networking sites such as Twitter, Facebook, and MySpace; gaming sites and virtual worlds such as Second Life, Club Penguin, and the Sims; video sites such as YouTube and daily motion. These sites offer a portal for entertainment and communication for today’s youth and have an exponential growth in the recent years. For the same reason, it is very important that parents and caregivers to be aware of the nature of social media sites. Since that not all of them are healthy environments for children, adolescents and adults. Physicians, Psychologists and Pediatricians are in a unique position to help families in understanding about these sites and in encouraging a healthy use and urge parents in monitoring for many problems with cyber bullying, facebook depression, game addiction, sexting, and exposure to inappropriate content. In this study we have reviewed the last 15 years scientific literature on media influenceon sexual attitude. The literature review mainly focuses on the influence of media such as social media, televisions, blogs and other websites on the sexual attitude and behaviour. The findings of the study are summarised and discussed in the paper elaborately.
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Abstract:
Sports students are often subjected to a substantial amount of pressure in order to balance successfully their academic studies with their sporting commitments. The greater level of stress may be due to the decreased amount of time that they are warranted to complete the increased responsibilities placed upon them. They are at greater risk to experience mental health problems and as a result more frustrated and their reactions to frustrations may be according to that. The present study focuses on the relationship between mental health and reactions to frustration among students engaged in sports activities. The subjects were 100 sports students taken from Ernakulam district and Trichur district of Kerala state. The tool used in the present study are Mental Health Profile developed by Vanajakumari and H. Sam Sananda Raj (1995) and Reactions to Frustration Scale developed by Dr. B.M. Dixit and Dr. D.N. Srivastava (2005). The analysis was done in SPSS and correlational analysis was the main statistical analysis employed. The results showed that there is no any significant correlation between the total score of mental health and reactions to frustration except the in case of sub variables.
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There are many global and national issues that affect the indices of different stock markets. The global economic meltdown, demonetization, GST has influenced all the sectors of the Indian economy. Its impact is more visible on the capital market and the indices. This paper studies the relationship between Index based companies and Indian stock market. The monthly data have been collected from secondary sources such as official websites of Indian stock market, journals etc. from January 2017 to December 2017. The beta coefficient explains that half of BSE30 securities are less volatile and half of BSE30 securities are more volatile with respect the Indian stock market. The Karl Pearson Correlation Coefficient explains that there is positive and negative correlation of BSE Sensex and Indian based companies during the research period
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Abstract:
The basic purpose of this paper is to conclude that the Triangle law and Parallelogram law of forces are really different or the same. Author uses the same data to verify both these laws of forces and determine the percentage error in both the cases. At the same time, the same results are compared with the analytical one. Here, author assumes that the Force board apparatus is error free and every reading/data is taking with great care to minimize the human error upto a great extent. The paper is useful especially for B.Tech. / M.Tech./ and research scholar working in the field of machine design
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Abstract:
Demonetization step turned out to be a God send privilege for various wallet platforms especially for paytm. Cash strapped Indians opened the gates of massive opportunities for these e-wallet segment which was accompanied by political cross fires and technical woes. There is a great necessity to look into the case and to analyze as to what extent the digital payment segments; especially Paytm got benefited by this move of our Prime minister although it had to face various barricades in its journey. The working of such platform really helped general public in such a time of liquidity crunch and is studied in detail. Huge spike in new users has been seen after the decision of demonetization was announced. This case study will help the reader to understand the odyssey of highs and lows in Paytm after the case of demonetization and how it proved to be extremely beneficial for all the segments of the society. Paytm dream changed into reality but this overnight glory of paytm came along with various thunderous lash backs from different schools of society. To analyze this case content analysis is used. It is very helpful in understanding various structural changes in the environment and its impact on e wallet companies. To fulfill the desired objectives, different News articles and News items are collected and critically analyzed to give away the better judgments. News items are being observed keeping in mind different aspects and perspectives in mind. This study will help all the marketers in understanding scenario of the growing digital platform in India. This case study provides deep insights about changing business environment positively and critically and helps marketers in tapping this golden opportunity.
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Abstract:
This paper looks at the current two most popular formats for reading, viz. printed books and magazines and electronic versions of the same. It seeks to trace the evolution of the these two formats over the last few years, to analyse readership patterns and examine if they are in any way linked to their native format or are there other factors, such as publishers for example, that motivate the reader to adopt one medium in preference to another. The paper also seeks to comparatively evaluate the advantages and disadvantages of both formats amongst consumers as well as guage acceptability of print or eBooks at an institutional level such as libraries. Methodology followed is an extensive review of literature and one-on-one Interviews.
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Abstract:
In this paper, the main objective is to convert the rotational energy of the rare wheel of the bicycle into electrical energy so that we can recharge the battery & run the bicycle by this energy up to certain distance. We know that the supply of fossil fuels are limited & their utilization as energy source causes environmental degradation due to unfinished ignition when used as energy source. Here, the aim is to present the idea of harnessing the various energy & use it in today's existence of human life & to shift away from conventional based fuels to using renewable sources of energy is must. Electric bicycle which will be driven with help of battery & thus provide required voltage to the motor. The focus is to generate power from vehicles waste energy. It produces no pollution & also provides healthy exercise to the user. This can be drive with the help of the pedal or electricity. The rider can charge the battery while moving with the help of the dynamo or alternator which convert the mechanical energy to electrical energy. Therefore the manufacturing of such bicycle is indispensable.
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Abstract:
As we claim to live in a modernized and developed world today, there are various places around the globe which are relatively been left untouched by civilization, modernization and development. These places don’t have access to several facilities we tend to take for granted. One of them happens to be electricity without which the people of these regions face many basic issues, like lighting, heating, cooling and food preservation, etc. In most cases, lack of access to these resources leads to food wastage on a large scale in these areas. The ECO-REFRIGERATOR is something to look out for in the future. Using the prominent proposal for implementation and development, this refrigeration unit can change the way food is preserved in areas that have limited access to electricity. It can also change the future of the food transportation industry by using nature inspired habits. It is an essential tool that can change the very lives of those in need of it. The principle on which ECO-REFRIGERATOR is based is evaporation technique and is a cooling device that works without any electricity and, it’s also cheap and portable, making it ideal for those in remote and rural areas who struggle to keep their produce fresh.
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Abstract:
The sum total of all surroundings of a living organism, including natural forces and other living things, which provide conditions for development and growth as well as of danger and damage is called environment. With the progress of civilization and advancement of technology we are destroying nature in the name of development. The environment in which we live in today is degrading at an alarming rate. Thus, making it impossible for the new generation to survive. Therefore, there is a dire need of sustainable development that meets the needs of the present without compromising the ability of future generations to meet their own needs which has become a major focus of scientific research because of the potential catastrophic effects on biodiversity and human communities
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Abstract:
In this paper, a multi item objective function fuzzy inventory model has been derived from imperfect items with uncertain lead time and decreasing holding cost using the geometric programming method. Here lead time is allowed. Lead time and Production cost are taken as a fuzzy number.. The decreasing holding cost is considered to be a continuous function of a product quantity. The total cost is minimized under the restriction of the limitation on the total number of orders using the geometric programming method. The aim of the study is to optimize the optimal order level and total annual cost. Finally, a numerical example and sensitivity analysis in fuzzy environment is given to illustrate this model. Graded mean representation method is used to defuzzify the results.
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Abstract:
In this paper, a multi item objective function fuzzy inventory model has been derived with uncertain lead time and decreasing holding cost using the geometric programming method. Here lead time is allowed and it is considered to be a fuzzy number. The decreasing holding cost is considered to be a continuous function of a product quantity. The total cost is minimized under the restrictions of the limitation on the total number of orders and the limitation on the total holding cost using geometric programming. Finally, a numerical example and sensitivity analysis in fuzzy environment is given to illustrate this model. Graded mean representation method is used to defuzzify the results.
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Abstract:
In this world, large amount of data are transferred daily over a network. Our main aim of data transmission over the network will not be accessed by unauthorized users. Security is main concept to secure the transmission data over network. We use network security and cryptography to protect the data. Network security covers to public and private network, that‟s used in everyday in government sectors, transaction communication etc. In this paper, we define the various types of security aspects like: confidentiality, non- repudiation, integrity etc. Cryptography-based security technologies commonly use one or more of these functions to provide network and information security. There are various types of techniques are used in cryptographic, symmetric and asymmetric key .In symmetric key cryptography Advanced encryption standard (AES) and Data encryption standard (DES) comes under it and RSA (Rivest Shamir Adleman) and DSA(Digital Signature Algorithm) comes under asymmetric key cryptography. The difference between these algorithms are : key, block size and speed. The performance of all the algorithms are different. And the message are encrypted and decrypted by the mathematics expressions
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Abstract:
We are all familiar with the fact that Cities are almost always hotter than the surrounding rural area and global warming ads even more heat to it and make it worse. Because of this warmth, a city may be referred to as an urban heat island (UHI).In future, the combination of urbanization and climate change could raise urban temperatures to levels that threaten human health, strain energy resources, and compromise economic growth. One of the key partners who contribute to this threat is the civil industry by covering most of the soil space with buildings and rigid pavements which are inevitable to meet the needs of growing population in countries like India. This paper mainly aims to propose general recommendations for construction industry in metropolitan cities to reduce the impacts of UHI.
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Abstract:
Recently there have been enormous and rapid developments in research and innovations in the natural fibre composites (NFCs). Interest in natural fibre composites is due to advantages of these materials over synthetic fibre composites. NFCs are based on low environmental impact, low cost and sustainability. Bio-fibres such as plant fibres are replacing synthetic fibres in composites. In the present work biocomposites are produced using two different plant fibres viz., sisal and areca (beetle nut) with epoxy resin as matrix material at three different volume fraction of fibres (20%, 30% and 40%). Compression moulding technique was used to produce biocomposites. Composites were also produced after treating sisal and areca fibres with sodium hydroxide of 4% concentration. Fibers were characterized for linear density, tensile strength, elongation at break, initial modulus, moisture regain using standard testing methods. Composites were tested for moisture content, tensile strength, tensile modulus, flexural strength and flexural modulus. It was found that sisal fibres were strong and absorb more moisture than areca fibres whereas, areca fibres were more flexible and hydrophobic than sisal fibres. Alkali treatment reduced the moisture regain of both the fibres and improved tenacity, and elongation. Composites produced from sisal fibres were stronger than composites produced from areca fibres with respect to tensile and flexural properties. Composites produced from alkali treated fibres were more hydrophobic and stronger than composites produced from untreated fibres.
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Abstract:
The term IOT everywhere will encourage billions of devices, individuals and administrations to interconnect and exchange information and valuable information. As IOT frameworks will be omnipresent and inescapable, various security and privacy issues will emerge. Security and privacy are the key issues for IOT applications, and still face some colossal challenges. Dependable, economical, productive and viable security and privacy for IOT are required to guarantee correct and precise classification, uprightness, confirmation, and access control, among others. Internet of Things is without a doubt a notable research region. Truth be told, guaranteeing security of information trade is among the immense difficulties of the Internet of things. By methods for profoundly dissecting the security design and highlights, the security prerequisites are given. In this paper we present the internet of things and its security and privacy.
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Abstract:
Biological degradation is adjudged as an important mechanism of organic chemical removal in natural systems, owing to its environmental compatibility and plasticity. Consequently, microbial metabolic potentials are widely exploited for a number of industrial applications including decommissioning of environmental pollutants. Enzymes and microorganisms can be used for the bioconversion of biological materials into useful products. A few reports are available in the literature on the production of tannase through biotechnological routes. A novel route for the production of enzyme tannase using the principles of fermentation technology and organic chemistry. An important enzyme having various industrial applications is tannase (tannin acyl hydrolase). It is an extracellular enzyme falling under the hydrolase group of enzymes. Tannin acyl hydrolase (E.C.3.1.1.20) commonly called tannase, catalyzes the hydrolysis of ester and depside bonds in such hydrolysable tannins as tannic acid, thereby, releasing glucose and gallic acid. Tannase is an inducible enzyme produced only in the presence of tannic acid, or its endproduct, i.e., gallic acid. The work deals with the extraction of tannins and production of tannase enzyme from Cashew testa waste by submerged fermentation using immobilized cells of metated strain Cashew, Anacardium occdentale, is widely cultivated in India especially in Srikakulam, Andhra Pradesh. The Cashew testa after taking out the raw nuts has been thrown by cashew industries. The testa of Cashew has a long number of tannns. This disposed testa containing toxic chemicals like tannic acid from tannins causing environmental pollution by contaminating the local ground water
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Abstract:
The antimicrobial activity of crude extracts of Ocimum sanctum (OS), Ocimum kilimandsacharicum (OK), Garcinia mangostana (GM), and Swertia chirayata (SC) was evaluated on selected enteric pathogens. The antibacterial and antifungal activity of the extracts at different concentrations was screened by disc diffusion technique and the zone of inhibition was measured in mm diameter. The tested plant extracts showed promising antimicrobial activity, thus justifying their traditional use. All the extracts showed varying degrees of antimicrobial activity on the microorganisms tested.
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Abstract:
The polynomial x4 +1 is irreducible in Z[x] but is locally reducible, that is, it factors modulo p for all primes p. In this paper we investigate this phenomenon and prove that for any composite natural number N there are monic irreducible polynomials in Z[x] which are reducible modulo every prime
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Landslides are defined as the movement of rocks, debris, and landfills under the influence of gravity.
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Thepolar liquid crystals (PLCs) are characterizednot only about bulk properties,.
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