VOLUME 7, ISSUE 7, JULY 2020

Abstract: The optimization processes in mathematics, computer science and economics are solving effectively by choosing the best element from set of available alternatives elements. The most important and successful applications in the optimization refers to transportation problem (TP), that is a special class of the linear programming (LP) in the operation research (OR). The main objective of transportation problem solution methods is to minimize the cost or the time of transportation. Most of the currently used methods for solving transportation problems are trying to reach the optimal solution, whereby, most of these methods are considered complex and very expansive in term of the execution time. This paper shows the total transportation time problem regarding the time of the active transportation routes. If the multiple optimal solutions exist, it is possible to include other criteria as second level of criteria and find the corresponding solutions. Furthermore, if there is a multiple solution, again, the third objective can be optimized in lexicographic order. The methods of generation of the optimal solution in selected cases are developed.

Keywords: Operation Research, Transportation Problem, LPP, VAM, Optimal Solution.

Abstract: The corona virus disease (COVID 19) is an infectious disease caused by the newly discovered corona virus. Its high rate of transmission makes it more deadly, as it can be easily spread from person to person. One of the ways in which the spread of this deadly virus can be curbed is regular washing of hands with soap and running water. Hand washing is a critical activity in preventing the spread of infection in health-care environments and food preparation areas. In order to eradicate hand contact between the tap and the hands a manual hand washing machine was designed and fabricated. The machine employs the use of pedal operated clutch cable and a return spring to operate the water tap, while making use of pedal operated contact spring for the spraying of soap. The average human height was considered to make the machine ergonomically satisfactory, so as to make its usage more comfortable. The materials for the fabrication of the machine were sourced locally, so as to minimize the cost of production and make it readily available for low income earners in developing nation.

Keywords: Corona virus, Clutch cable, Ergonomic, Hand washing, Pedal operated

Abstract: Dielectric constants of binary mixtures of polar liquids have been evaluated at different concentrations and temperatures. The chemicals used were N, N-Dymethylformamide (DMF) as a solvent and Propylene Glycol (PLG), Water (H2O) as solutes. Excess dielectric constant, Kirkwood correlation factor and Bruggeman factor of the binary solutions has also been reported in the study. The measurements have been carried out using a wet sensor which is based on Frequency Domain Reflectometry (FDR) technique. The results show that the dielectric constant of the binary mixtures depends on the molecular size of the solute. The study also shows the DMF-PLG interaction is more favorable than that of DMF- H2O interaction.

Keywords: Dielectric constant; Polar liquids; Excess properties; N, N- Dymethylformamide; Propylene Glycol; Water.

Abstract: Work life quality is almost priority to every individual to stay heathy and have mental peace. People work for their own individual development and also for company growth and prosperity. The management of every unit must give a compatible, balance and healthy work life to each employee in the organizations whether it may be manufacturing or service organizations. This study based on the imaginations and the reality of teachers in higher education-based service organizations. Five Engineering college faculty has been considered randomly to get the data prior to their expectations and reality in the work place. Maximum faculty found that they feel satisfied what they get to survive in the workplace to maintain a quality in the field. They are dedicatedly working as per the policies of the institute as well as they feel good what they get as returns.

Keywords: Quality of Work Life, Engineering College Faculty, Work-Life Balance.

Abstract: Before we start speaking our native language, we listen it first, then speak, we read and finally we write. We have four basic skills in English- Listening, Speaking, Reading and Writing. All we need to develop to make our communication complete. Among these four skills, Listening and Reading are receptive skills whereas Speaking and Writing are Productive skills. However, it is quite difficult for the students or second language learners to speak a foreign language especially English. Reasons are many. It may be due to lack of or absence of ideas, lack of vocabulary, lack of exposure to speak or may be lack of impressive teaching methodology. Speaking is very much essential for everyone to express their ideas, thoughts, and to communicate to people. The problem of students' poor speaking skill can be solved by providing them ample opportunities to practice English. For this the teacher needs to implement innovative methods to make the speaking skill more interesting and improve the speaking abilities of the students. On the other hand, the students too need to be more proactive and should actively participate in each activity conducted in the English classrooms or Language Labs. They should also remain active during interaction with their friends and teachers. The objective of this study is to- implement innovative teaching methods in the classrooms to improve the speaking skill of the students and secondly to enhance the confidence level of the students in speaking skill and develop fluency in speaking.

Keywords: Speaking, Vocabulary, Implement, Language Labs, Innovative.

Abstract: Casting is the most economical route to transfer raw materials into readily usable components. However, Porosity in cast metal matrix composite (MMC) has been found as major cause of defect. Generally, increasing content of porosity will decrease the mechanical properties of MMC such as hardness, tensile strength, and damping capacity. Also casting results in variety of grain structure like dendrite structure, chilled grains, columnar grains and there is lack of expected homogeneity. On the contrary, forging process gives directional properties. The formation of a grain structure in forged parts is elongated in the required direction of the deformation. This structure gives better mechanical properties in the plane of maximum strain but lower across the thickness. The limitations of casting and forging can be eliminated in squeeze casting process where the force is applied on the alloy in between liquidous and solidus temperature. In squeeze casting, uniform and homogeneous grain structure is found which is favorable for machining. In this work, three specimens of alumnium metal matrix composite are prepared and examined for hardness, microstructure and pattern of chips while machining. Macro-examination of chips showed improved machinability and improved surface finish Hardness is increased with increase in reinforcement and squeezing.

Keywords: Aluminium alloy Metal Matrix Composite, Squeeze Casting, Microstructure, Hardness, Chips

Abstract: Epidemics are one of the major reasons for death of many people with major impact on population. Hence it is very important to identify the cause and predict the spread of epidemics so as to reduce the threat that may be caused. In recent years, Dengue is one of the most commonly found epidemics in several developed and also developing countries like India. Since its mortality rate is high, it should be detected in advance to facilitate for proper medical arrangements and thereby decrease the mortality rate.

Keywords: Epidemics, Dengue, prediction, forecasting, fatality, classifier.

Abstract: Background of the problem: Coping were mediators in the relationship between perceived stress and Health outcomes. Objectives: The purpose of this study was to assess the mediating effect of coping on the relationship between stress and health outcomes. Methods: Total 735 medical students from different medical college in were selected for data analysis of the study. For measure the level of stress, Gadzella's (1991) Students-life Stress Inventory (SSI) was used. In assessing the Health outcomes, the Medical Outcome Study: Short-form 36 (MOS SF-36) that was developed by Ware, Snow, Kosinski, Gandek (1993) was used and The Ways of Coping-Revised (WOC-R) Scale was used to measure coping of the students. Results: The result reveals that Health outcome was not regressed on the predictor Academic stress and Academic stress was not significantly associated with Health outcome. Conclusion: Mediation effect of coping variables, health outcomes was not regressed on ways of coping and academic stress.

Abstract: As there is no specific course in business English at the undergraduate and postgraduate levels, and as the training at schools and colleges is mostly grammar-based, most business executives during their college education are deprived of the necessary training in the use of English in business situations. The knowledge of grammar which they acquire in schools and colleges is of little help because they also need to know the rules of language to communicate effectively in real life situations. So, it is important that business executives, who in their schools and colleges have been trained in grammatical accuracy; need to be trained to become effective communicators so that they can utilize their flair and talents in their relevant areas of business. They need to get a fair exposure to a rich variety of linguistic and social-cultural material with its focus on what to say when and how. Therefore, a specialized course in English for business executives is essential. Such a need gains more significance in the absence of in-company training programmes in the use of English for business executives.

Keywords: Business English, College, Business executives, In-company training

Abstract: Self compacting concrete is a concrete that flows under its own weight and it does not require any external compaction. And the fibers are added into the concrete for withstanding the propagation of cracks. This fibres are high resistivity against high tensile strength and temperature and to study this strength behavior of pet strap and sisal fibre self compacting reinforced concrete the various test specimens were casted such as cubes, cylinders and beams. In this experiment cement is replaced by 20% of fly ash. For a mix design proportion of 1:1.75:1.2 with a water cement ratio of 0.47 and In this experiment we are adding hybrid fibres like sisal and pet strap fibres with a dosage of 0.5%, 1%, 1.5% and 2% were dispersed into the concrete of mix design M40 grade concrete.

Keywords: Compression test, Split tensile test, Flexural test, Sisal fibre, Pet strap fibre and Fly ash.

Abstract: Land is one among the non-renewable resources and mapping of Land Use/ Land Cover (LU/LC) is vital for designing and development of land, water resources with appropriate tools. There is a significant change in LC/LU across the globe due to the climatic changes, rapid increase in population and over demand of the growing economic resources. The present aim is to detect the changes in LU/LC patterns and its aerial extent due to different socio-economic factors in the study area. Efforts have been made to evaluate the LU/LC patterns using SoI topomap (1:50,000) with limited field visits; geo-coded FCC of IRS-1D, PAN+LISS-III multispectral, multi-temporal satellite images. Spatial, spectral and temporal analysis kind of approach has bigger importance in mapping of appropriate LU/LC categories and its change detection over time period and coverage areas calculated using ArcGIS v10. Supervised classification using Maximum Likelihood Classifier (MLC) is applied to prepare LULC maps using NRSC guidelines (1995) through GIS software's. Various categories of vegetation activities have an effect on the surface flow of run-off water resulting in maximize infiltration. The final results highlight the capability of geospatial techniques to bring out the real changes observed in LU/LC patterns and provide meaningful information in proper planning and developmental strategies for land sustainability.

Keywords: Land Use/ Land Cover; Change Detection; Chitradurga; Geospatial technology.

Abstract: The present research work is relating to health status based on Disability-Free Life Expectancy (DFLE) between urban and rural areas in India. Framework of rapid urbanization in India has been set over past few decades. This brings strong decline in the quality of life due to population ageing and ensuring sustainability of health care systems and reduction of disability among elderly Indian population. This paper also explores on disability prevalence and the potential link between poverty and disability. This paper will observe a direct relationship between the poverty rate and disability prevalence in India. Aim of the present research work is for estimating DFLE of Indians of all ages in urban and rural areas and to examine whether differences in DFLE exists between above two areas. Data from SRS and Indian Census 2011 are utilized under present work. Technique of Sullivan is applied for the estimation of DFLE in India. Rural areas exhibit higher rates of age-specific mortality than that of its urban counterpart. Higher rates of age-specific disability in rural areas, which is statistically insignificant here, were observed as compared to urban areas. Above two observations reveal about significant differences in disability prevalence and mortality occurrence from birth to age 80+between urban and rural areas of India. Urban population has longer life expectancies and also DFLE than that of rural population from birth to age 80+. Present study exhibits about presence of inequalities in life expectancies, DFLE and life expectancies with disabilities between urban and rural areas in India together with their age-specific differences as well. These findings may be useful and yardstick for implications of various policies in way to reduce the inequalities in health-related outcomes.

Keywords: Disability and Poverty; Disability-Free Life Expectancy; Life Table Technique; Sullivan Technique.

Abstract: In this study an univalent function with negative coefficients which is defined by a new general linear operator have been introduced. The sharp results for coefficient estimators, distortion and closure bounds, Hadamard product and Neighbourhood, and this paper deals with the utilizing of many of the results for classical hypergeometric functions, where there can be generalized to m-hypergeometric functions . Subclasses of univalent functions are presented, and it has involving operator which generalizes many well -known. Denote be the class function and other results have been studied.

Keywords: Univalent functions, coefficient estimator, linear operator, neighbourhood

Abstract: Warping and Sizing are the two important weaving preparatory processes. Performance of these machines and the yarn behavior during these processes decides the loom performance and the fabric quality. With the increasing speeds of the weaving machines it has become more important to concentrate on the loom efficiency and to reduce the second quality fabric. In this study three different yarns are studied for their performance in weaving preparatory and the performance at weaving shed. During this study yarns were tested for warp tension, end breaks, preparatory machine speed, moisture content and the stretch at sizing.

Keywords: Air Jet, Warp Preparatory, Warping, Sizing, Stretch, Pick-up

Abstract: Strengthening of reinforced concrete structure improves the load carrying capacity and extends their service life. To extend the life span of damaged RC beam, strengthening is required and this can be effectively achieved using Ferro cement. Ferro cement is a type of thin wall reinforced concrete commonly constructed of hydraulic cement mortar reinforced with closely spaced layers of continuous and relatively small size wire mesh. Ferro cement is a construction material that proved to have superior qualities of crack control impact resistance. In recent years, the use of Ferro cement laminates has become a subject of great interest in structural engineering community. The mesh may be made of metallic or other suitable materials. Ferro cement is a composite material of woven mesh and weld mesh embedded in mortal with various volume fractions. The main objectives of this research work are to study the flexural behavior of per damager RC beam with varies Ferro cement configuration under two-point loading, to compare the experimental results of strengthened pre damaged RC beam for the parameters likes first crack load, ultimate load carrying capacity, stiffness and energy dissipation. In the current research, an experimental implementation will be done by casting and testing of beams. Five reinforced concrete beam of size 100 x 150 x 1100 mm are cast. Out of which four beams were pre damaged under load at one third with 60% of point ultimate load of the beam. The strengthen of damaged beams were with Ferro cement laminates constitutes chicken mesh and weld mesh with 2 and 3 layers were made. An analytical model was created with ANSYS. Further, the experiment result was compared with analytical results.

Keywords: Cement, Coarse aggregate, Fine aggregate, Strengthening of RC beam.

Abstract: The continuously increasing demand for electric power and the economic access to remote renewable energy sources such as off-shore wind power or solar thermal generation in deserts have revived the interest in High-Voltage Direct Current (HVDC) Multiterminal Systems (networks). A lot of work was done in this area, especially in the 1980s, but only two three-terminal systems were realized. Since then, HVDC technology has advanced considerably and, despite numerous technical challenges, the realization of large-scale HVDC networks is now seriously discussed and considered. For the acceptance and reliability of these networks, the availability of HVDC Circuit Breakers (CBs) will be critical, making them one of the key enabling technologies. Numerous ideas for HVDC breaker schemes have been published and patented, but no acceptable solution has been found to interrupt HVDC short-circuit currents. This paper aims to summarize the literature, especially that of the last two decades, on technology areas that are relevant to HVDC breakers. Additionally, different technologies based on derived information from literatures are compared. Finally, recommendations for improvement of circuit breakers are presented.

Keywords: HVDC, HVDC fault current, Solid-state DC circuit breaker, Hybrid circuit breaker, Power-conditioning units; dc/dc converters; dc/ac inverters, Distributed generation; Renewable energy sources; Fuel cell systems.

Abstract: From the last few decades numbers of ways are tried by many researchers to beautify the fee of warmth switch with the usage of fins via way of means of various varieties of parameters. The parameters like fin spacing, fin geometries, temperature distribution, height, duration have been reviewed in this paper. The paper presents a couple of short feelings roughly the methodologies of upgrading the charge warmth switch through method of methods for utilization of various sorts of blades. Primary goal of the paper is to give some concise information about the enhancements that can be made in calculation of the balances to build heat move rate.

Keywords: Fin Spacing, Fin Geometries, Temperature Distribution, Height, Length, Heat Transfer Rate