VOLUME 6, ISSUE 12, DECEMBER 2019

Abstract: An attempt was made for the purpose of evaluation, isolation, and identification of the fungal load in air of Malnicherra & Lakkhatura tea estates (from field to factory) in Sylhet Region during 15th January to 15th April 2017. The study was carried out in six different sections of the tea estates namely Nursery field, Matured field, Withering trough, Fermenting area, Drying zone, Sorting and Grading zone. The maximum microbial load was observed in Nursery field followed by Matured Tea Field, Sorting and Grading zone, Fermenting area, Withering trough and drying zone respectively. A total of 14 airborne fungal species were observed and among them, Aspergillus, Curvularia, Cladosporium, Penicillium, Rhizopus were the dominating genera in the air of tea estate. At Malnicherra tea estate Aspergillus fumigatus (12.39%) showed the maximum percentage followed by Aspergillus flavus (19.88%), Curvularia interseminata (19.74%), Aspergillus niger (17.96%) whereas Lakkatura tea estate Cladosporium herbarum (22.70%) showed the maximum percentage followed by Curvularia interseminata (20.28%), Aspergillus fumigatus (20.23%), Rizopus nigricans (19.47%). As fungal diseases are detrimental to the wellbeing of people, plant and animal health conditions, proper actions should be taken to protect tea estate workers and tea plants.

Keywords: Aeromycoflora, Microbial Load, Camellia Sinensis, Fungal Species, Health

Abstract: The screening of phytochemical was carried out to analyse the qualitative chemical compositions of selected plant extract using precipitation and colouration reaction and categorize them in different chemical group like, alkaloids, flavonoids, tannins, amino acids,etc. Three natural dyes Alkanna tinctoria, Quercus infectoria, and Thuja orientalis were chosen for laboratory expeiments in present investigation.

Keywords: Phytochemical, Analysis, Dye, Extract

Abstract: This paper describes the design and construction of a simple laboratory instrument to obtain Young's modulus (Y) of metal wires. This designed setup can give values of Y correct to within 2%. The instrument was designed to be used in higher secondary schools and undergraduate practical classes. The current setup can be constructed quite economically using readily available cheap items. The current setup was used to calculate values of Y for copper wire.

Keywords: Instrument, Metal, Economically, Schools, Design

Abstract: In this paper, the importance of using and utilizing technical methods to improve marketing and customer relationship management is presented. Among the many patterns, theories and programs, the decision support system processes are proposed by Markov.Finally, discuss the use of the Markov model in marketing and customer service

Keywords: Portfolio Optimization, Customer Lifetime Value, Monte Carlo, Markov Decision Process

Abstract: This paper discusses how to improve the marketing of services and products through the management of resources of various types of human and financial and other and the use of models and technology that helps in achieving this and presented some sources that refer to some types of models actually used and their impact on the work environment

Keywords: Decision Process Analysis, Customer relationship management, planning optimization, Market planning.

Abstract: In last decade, cloud computing has introduced noticeable changes in our personal and business lives, by offers pool of different types of re- sources can be accessing on demand. But, this technology has not reached the full deployment due to security and privacy concerns. Most of these issues derived from implementing MapReduce framework. Because processing data in MapReduce requires long running, which gives the malicious workers the enough time to discover the security vulnerabilities in it. The malicious workers can misbehave in a collusive way or in a non-collusive way. The misbehave attack can alter the program executing by gives an incorrect result computation. At more specific, they affect service integrity assurance in MapReduce. This paper surveys different improvement frameworks that addressed service integrity assurance based on MapReduce. It addressed the main techniques behind each framework with its characteristics. We find that new frameworks need some enhancements to ensure the service integrity in MapReduce.

Keywords: Cloud Computing, Integrity, Privacy, Business

Abstract: Cloud computing is one of the huge things in data innovation and in information technology world. Not at all like other previous computing systems, cloud computing paradigm that give boundless foundation or infrastructure to storage or running client's information/software. Cloud computing is a since quite a while ago envisioned vision of figuring as a utility, where information owner can remotely store their information in the cloud to appreciate on-request profoundly quality application and services from a mutual configurable registering assets. Our paper gives a concise presentation of cloud computing its sorts and security issue and ways to deal with secure the information in the cloud condition. Our proposed framework we expect will be more secure in addition, to addressing forensic computing in cloud computing as one of the most important emerging issues and highlighted security challenges.

Keywords: Attack, Pubic Cloud, Cloud Computing, Security, Evidence

Abstract: The QSAR study was conducted on 41, dicationic 2-Phenylbenzofurans derivatives with L. donovani DNA minor groove inhibitory activity using Multiple Linear Regression (MLR) and Partial Least Squares (PLS) methods. The statistical values from both the techniques were analyzed and compared to establish the good predictability of the models obtained. The MLR and PLS generated comparable models with good predictive ability and all other statistical values, r, r2, r2cv, r2 (test set) and F and S values, were 0.874, 0.765, 0.716, 0.718 and 22.804, 0.284, respectively, for MLR and r2, r2cv, r2 (test set) and statistical significance value were 0.758, 0.704, 0.710 and 0.99, respectively, for PLS, were satisfactory. The results obtained from this study indicate that the electronic descriptors play an important role in determining the anti-leishmanial activity of the compounds.

Keywords: TSAR, MLR, PLS, L. Donovani DNA Minor Groove

Abstract: Formula student vehicle is formula styled open-wheel single-seat four-wheel car which is built by students to compete in engineering design event. Steering and suspension are one of the critical systems in this type of vehicle. The primary aim here is to design clevis joint for steering rack extension to minimize undesirable bump steer phenomena seen during dynamic conditions while driving the car. Bump steer point must be precisely placed for improved performance and eliminating undesirable steer experiences when wheel travels vertically on the bump or during the corners. Considering various constraints and simulation of hard-points of the suspension system on LOTUS- SHARK vehicle simulation software, a clevis joint design is performed with the help of SOLIDWORKS modelling and analysis.

Keywords: Bump steer, toe point, clevis clip, tie rod, toe angle, wheel travel. Steering system, FSAE car

Abstract: The aim of this paper is to generalize the existing correspondence and isomorphism theorems of groups in the crisp setup to those of generalized soft group.

Keywords: (Generalized) Soft set, (Generalized) Soft map, (Generalized) Soft group, (Generalized) Soft homomorphism, (Generalized) Soft (pure) isomorphism

Abstract: In the post green revolution era, application of chemical pesticides in agriculture increased tremendously resulting in problems like pest resurgence, resistance and environmental pollution. Hence, in order to reduce the application of chemical pesticides, importance of Bio-control agents and Bio-pesticides rises significantly. Village Level Extension Workers (VLEWs) are the grass-root level extension functionaries working with the farmers. Therefore, it was imperative to measure the knowledge level of the VLEWs on Bio-pesticides and Bio-control agent in order to prioritize their training requirements on the subject. Accordingly, a study was conducted in Barpeta district of Assam with 80 numbers of VLEWs to measure the level of knowledge on Bio-pesticide and Bio-control agent. Four different aspects viz. Biological control, Botanical pesticide, Commercial formulations and Parasitoids were selected to measure the knowledge level of the VLEWs. A total of 20 questions were formulated under the above mentioned four aspects. A knowledge test was designed with a two point scale i.e. 1 for correct and 0 (zero) for incorrect answer. Frequency distribution of level of knowledge of VLEWs on Bio-pesticide and Bio-control agent showed that majority (81.25%) of the respondents' possessed correct knowledge on the "Active chemical component of neem based pesticide". On the other hand, only 6.25 % respondents' possessed correct knowledge on three aspects viz. microbial pesticides used against soft bodies' insects, most active part of the neem tree as insecticide and commercial formulation of neem based bio-pesticide. Distribution of VLEWs on level of Knowledge revealed that majority (60.50%) of the respondents had moderate level of knowledge, followed by 18.75 % with high level of knowledge on Bio-pesticide and Bio-control agents.

Keywords: Level of Knowledge, Bio-pesticide and Bio-control Agent

Abstract: Neem tree (Azadirachta indica) belongs to the family Meliaceae. It is widely used in Indian subcontinent to treat many diseases without any side effects. Each part of the Neem tree has its specific medicinal value. Neem flower has a variety of uses including aromatherapy, cooking, cosmetics and health remedies. By analyzing the phytochemicals of Neem flower extract represents the presence of some secondary metabolites and this indicates the occurrence of antibacterial activity against gram positive and gram negative bacteria.

Keywords: Azadirachta indica, phytochemical analysis, antibacterial activity, homemade soap.

Abstract: Numerical analysis is the area of mathematics and computer science that creates, analyzes, and implements algorithms for solving numerically the problems of continuous mathematics. The objective of this paper is to present a simple and accurate method to solve differential equations. To analyse Galerkin method with unknown functions as basic functions to solve Poisson equations numerically. This study compared the approximate solutions using various number of basis function with the exact solutions. The solution and graphical representation have been verified by Mathemetica and MATLAB. The results are shown in graphically. This paper is to understand the using of Poisson's equation in numerical analysis and the accuracy of the calculation of Galerkin's method. Keywards: Function, Numerical, Galerkin method, Poisson equation, Differential equation

Abstract: Surfactants produced from oil and natural gas derivatives can cause environmental pollution because they produce waste that is difficult to degrade. So, it is necessary to develop surfactant production which does not pollute the environment, for example, Alkyl poly glucosides, here a new type of alkyl poly glucoside surfactant will be synthesized by reacting Tert-butyl Glucoside (TBG) with oleic acid to form Tert-butyl Oleil Glucoside (TBOG). The aim in this research is to determine the exact reaction kinetics model and the kinetics parameters of the Tert-butyl Glucoside (TBG) esterification reaction with oleic acid using p-TSA as catalyst and modification of the addition of organic co-solvent. The variables studied were the mole ratio (TBG: oleic acid), temperature, and % catalyst. From observations, the best conditions were obtained at a mole ratio of 1: 4, the temperature of 90oC and 2% catalyst. The best yield obtained was 91.49%. Product quality was characterized by FTIR and GC-MS spectroscopy. The kinetics of esterification reaction of TBG with oleic acid using catalyst p-TSA and modification of the addition of organic co-solvent was carried out at 75, 90, 92oC. The reaction kinetics parameters for the kinetics model with co-solvent are A1o = 6,103 L / mol.s; A2o = 1,3.101 L / mol.s; -Ea1 = -2.103,44 J / mol; -Ea2 = -1.446,63 J / mol. The reaction kinetics parameters for the kinetics model without the addition of co-solvent are A1o = 3,3.101 L / mol.s; A2o = 1.5 L / mol.s; -Ea1 = 3.683,93 J / mol; -Ea2 = -4.770,57 J / mol.

Keywords: Esterification, Kinetics Parameter, TBOG Surfactant, Co-Solvent

Abstract: The Dravidian language family of South India is considered to be one of the most prominent connected language family known with 73 major sections and subsections. The Dravidian language diversification starts at a point where the proto-Dravidian language started split coinciding with the decline of the Indus valley civilization around 1500 years ago. This era also coincides with the enhanced diversification of Sanskrit to different Prakrit languages within Indian subcontinent. The next significant change in the Dravidian languages occurs during the conquest of Alexander coinciding with the beginning of Proto-Telugu and proto-Kannada. This era coincided with the emergence and popularisation of Buddhism and Jainism (social Renaissance), the diversification of the languages also can be traced with the mixing of the population during these periods. These have been traced using mtDNA and Y-chromosomal studies. The changes in the genetic makeup which could be traced along the migratory route to Australia can be easily ascertained. Thus, the genetic divergence of human populations within this area could be correlated with the diversification of the language family due to various factors. The psycho-linguistic effects of the environmental, social and geographical factors resulted in diversification of Indian Dravidian population and their linguistic diversity. In this review, we have elucidated these factors and correlated the two changes as interrelated and significant. Hence this bio-linguistic study can help in further research in the field.

Keywords: Psycholinguistics, Bio-linguistics, Dravidian, Genetics