VOLUME 6, ISSUE 8, AUGUST 2019

Abstract: The Author begins with a meaning of the Title. A diagrammatic illustration from the point of view of location of Magma Chamber inside the Earth is given. Idea of Magma Convection inside the Magma Chamber leading to Magma Fragmentation and Magma Vaporization which ultimately leads to Magma Turbulence. In the Paper the author has established the fact that at Eruption, the gaseous or more correctly the vaporous Magma behaves as an Ideal Gas obeying the Gas Laws more particularly the Gay-Lussac's Law. The lowest and highest temperatures of the vaporous magma have been found from the Review of Literature and the Gay-Lussac's Law has been graphically plotted. From the slope of the graph, the value of the Gas Constant 'R' is found to be fairly in good agreement with its standard value. Readers are requested to particularly read the Conclusion.

Keywords: Charle's Law, Eruption, Gay-Lussac's Law, Gas Constant, Ideal Gas, Magma Chamber, Magma Fragmentation, Magma Turbulence, Magma vaporization, Perfect Gas

Abstract: Employee job satisfaction is influenced by the internal organizational environment, which includes organizational climate, leadership types and personnel relationships. The leaders in the universities should be aware that transformational leadership styles play an important role in maintaining successful Job satisfaction.. The aim of this study was to examine the effect transformational leadership on job satisfaction of the employees in Syrian private universities. The quantitative method was used in data collection. A two-stage cluster sampling technique was conducted which comprised of 351 faculty members and staff from seven private universities in Syria. A total of three different sets of instruments were used, namely Multifactor Leadership (MLQ), Communicative Competence Scale (CCS) and the Minnesota Satisfaction Questionnaire (MSQ). PLS-SEM technique was used to analyze the relationship between the variables in this study. The study results pointed out that there was a significant relationship between transformational leadership and job satisfaction.

Keywords: Transformational leadership, Job satisfaction

Abstract: 3-D printing has drastic expansion and has been a multidisciplinary research field attracting health professionals throughout the globe. It is a technique of three-Dimensional modelling of an object by hardening the material under the control, basically converting DICOM (Digital Imaging and Communication) images into stereo lithographic files. In early stages of its invention it was primarily and extensively used for two purposes one was for craniofacial modelling and the other was for dentistry, but as time passed by, it made a major impact on medical fields like anatomical models, bio printing, medicinal education, tissue engineering, etc. where the scaffold (3-D structure) are formed which are used for formation of new viable tissues for medical purposes. Recent days, 3-D printing technique symbolizes big opportunity to aid medical and pharmaceutical sectors enabling rapid production of medical implants, medicine and changing the way doctors and surgeons plan procedures. The overall aim of this paper is to explore through and provide a survey on all these recent technologies and theoretical concept explaining the development of 3-D printing mainly in the healthcare sector. This paper intends to introduce with a brief explanation as to how and why 3-D printing in healthcare is changing practices, teaching and research.

Keywords: Tissue engineering; Anatomical models; Customized implants prostheses; 3-D vascularised organs

Abstract: As per current scenario major cities in India facing issues regarding land availabilities for construction, renovations of old structure or cost of re-construction of whole structure. In most the metro cities it is difficult to demolish and re-construct of whole old building structure. Retrofitting of existing concrete structures has become an important issue nowadays in the construction industry. Such necessity had been caused by several factors, especially when concrete is subjected to severe environmental and loading conditions. In such situations, the remedy is either to demolish the existing structure and construct a new one or to retrofit the existing structure by an appropriate strengthening methodology. It is very essential to find easy and fast alternative ways in field of retrofitting to avoid complete re-construction of building. This research paper aims at introducing new materials for strengthening or retrofitting of structure by U-shaped wrapping of Basalt fiber reinforced polymer and Aramid fiber reinforced polymer unidirectional sheets

Keywords: Retrofitting, Basalt, Aramid, Simply supported beam fiber reinforced polymer

Abstract: There is a rapid boost in the use of 3D-printer (Three Dimensional printer) in various fields like model designing, rapid manufacturing, building parts of different equipment, etc. Similarly, in the field of medical science, we are using it in anatomical models, making the biological model, etc. But in recent years we've been listening more about the 3D-Bioprinter. It is like a 3D-printer technique that is used to make tissue, organs, skin, etc. by using the cells, growth hormones, biomaterials, etc. in a suitable environmental condition to fabricate it as natural tissue characteristics. The whole process is divided into three steps. First is designing the structure of the tissue layer by layer. Second is the bioprinting of the designed layer. The third is the crosslinking of a different layer of the printed layer. In the 3D-Bioprinter we are going to use the Bio-ink which will be made of tissue's unit cells, water gel, water, hormones, etc. It has a huge scope in medical treatment as well as in the research field. But this technology is not fully functional because of some major problem faced by scientists is a mimicry of tissue and organs with natural. So that we are going to see the uses of Bioprinter, its scope in medical treatment, medical drugs pharmacy and what is the major problem faced by scientists in making this technology fully functional. We also see what are the field in which we need research work.

Keywords: 3-D Bioprinter; working; scope; challenges; uses

Abstract: Removal of cesium from synthetic aqueous solution through adsorption on montmorillonite, under batch equilibrium experimental condition at different values of pH and four temperatures (303, 313, 323, 333 K) was investigated. For this propose the suitability of the Freundlich adsorption model for equilibrium data were investigated. The parameters in the adopted adsorption isotherm models were determined. The study of equilibrium isotherm shows that the best model for analysis of experimental data is freundlich model with correlation coefficient higher than 0.99 (both for temperature and pH). The results showed that increasing of pH and temperature increased the adsorption ability of montmorillonite. Optimum conditions for adsorption were determined as T=323 K, pH=9, montmorillonite dose=1.5 g and contact time of 24 hr. The negative value of the Gibbs free energy ∆G demonstrates the spontaneous nature of cesium adsorption onto montmorillonite.

Keywords: Equilibrium, Thermodynamic studies, Montmorillonite

Abstract: The present investigation was based on examining knowledge of consumers about care labels found on textile products. A qualitative survey was conducted to collect data from the residents of Udaipur urban areas in Rajasthan. The population of the study comprised of both men and women in retail shops and flea markets in city of Udaipur. The sample or participants were drawn by means of convenience and availability of sampling. The study involved retail shops, flea markets and thirty respondents comprising of college going students of Udaipur city. Data was collected through interview schedule, observation method and telephonic survey. It was revealed that some clothing from both the retail shops and flea market did not have any type of care information. It was also found that most of the consumers did not follow information on the care labels due to lack of knowledge as most of them did not know what the symbols stand for and how to use or read them. The study recommends community based teaching programs on care labels and maintenance, and that all textile products should have compulsory care labels to facilitate proper care of textiles.

Keywords: Care Label, Textile Products, Laundering, Knowledge, Consumers

Abstract: For a car with an intriguing combination of technical characteristics and aesthetic appeal, the suspension system plays a crucial role. The suspension system creates a link between road and the vehicle chassis, providing comfort and managing the dynamics caused due to unsynchronized motion. The goal of this paper is to analyze and model a robust control strategy applicable on Semi-Active Suspension. In this work, optimal H∞ controller is analyzed and an innovative control strategy is proposed by augmenting PID controller with H∞ optimal controller. The proposed controller further enhances the results under uncertain road conditions and gives robust results. Finally the controller is simulated using MATLAB/Simulink for functional evaluation.

Keywords: Semi-active Suspension, Optimal Control, Robust Control, H∞ Optimization, PID

Abstract: This paper presents the information mainly on various cutting conditions applied during machining with different types of cutting tools such as carbides, ceramics and cermets. In various types of machining process, the important parameter which needs to be control or reduce are cutting temperature and cutting force because these parameters directly effects the life of tool thus effected the tool cost. Metal working fluids are essential coolants and lubricants used in material removal and deformation processes to improve manufacturing productivity by increasing process throughout and tool life. Automobile industries uses different types of coated or multilayer coated cutting tools under varying cutting conditions for producing the various types of parts. This paper shows the study of the performance of coated ceramic tools under varying cutting conditions such as dry turning and wet turning. The objective of this study is to analyze the effect of different cutting conditions on various types of tools so as to determine its various parameters such as temperature, spindle speed, feed and depth of cut in machining of hardened steel. This study reviews the literature on the performance of coated Ceramic inserts under varying operating conditions.

Keywords: Coated Cutting tools, Ceramics, Dry Turning, wet turning etc.

Abstract: Despite their huge contribution to the national income, Bangladeshi returnee international migrants and their family members are seriously vulnerable to contagious communicable viruses like HIV. The overall objective of the study was to examine the relationship between international migration and HIV infection risk factors among the returnee migrants in Bangladesh. Twenty case studies and in-depth interviews were conducted with the returnee migrants with HIV. Qualitative data from case studies and in-depth interviews were analysed thematically and systematically. Before returning to Bangladesh, prolonged working life, separation from regular sex partners, copulating with Bangladeshi sex girls, peer pressure and inefficacious risk appraisal promoted unsafe sex behaviour among returnee migrants. Cultural contexts, unsafe blood transfusion, needle syringe sharing, social stigma and discriminatory treatment approaches intensified their vulnerability to HIV infection. Findings suggest pre-migration HIV knowledge and practices, behavior and practices on returns and existing healthcare policies of origin country might prevent new HIV infections among returnee migrants and their immediate family members.

Keywords: Returnee Migrants, International Migration, HIV Infection, Self-efficacy, Risk

Abstract: This paper presents both experimental and analytical study on the behavior of Micro Steel Fiber Reinforced Mortars (MSFRM) with different fiber percentage under impact load. Brass coated micro steel fibers are used by 0%,2%,4%,6%,8% volume of the specimen. The cement mortar ratios are adopted for the study was 1:3 and 1:4. After 7days and 28 days of curing the specimens are tested by Charpy impact test in pendulum impact testing machine. The impact test was analyzed by using ANSYS. The impact load, bending stress, shear stress, load deflection and Stress vs strain curve was calculated. Both the results were validated and discussed. From the results it has been concluded that the impact absorption capacity of 1:3 mortar ratio is higher than 1:4 mortar ratio. As the increase in percentage of micro steel fiber the resistance of specimens against impact also increased.

Keywords: MSFRM, Charpy impact test, Pendulum impact testing machine

Abstract: In recent Fiber Reinforced Polymers (FRP) is being introduced in a wide variety of civil engineering applications. This material is also used for strengthening of reinforced concrete structures. Strengthening of concrete structure is required for increasing the capacity of the structural members to sustain additional loads caused due to change in live load, design error, age of structure etc. The strengthening of concrete with CFRP wrapping seems to improve strength of concrete. Methods for strengthening include FRP wrapping, concrete jacketing etc. Strength of RC structure components are found to be reduced, before the service period is over due to several causes. These structures require strengthening to improve its capacity, hence the FRP wrapping is carried out. FRP wrapping is done from one layer to no. of layers as per the strength requirement of the structure. In this study experiment is carried out on M20 and M25 grade concrete. Total 60 cubes are moulded out of which 12 are control specimens and 48 cubes of which 24 cubes of M20 concrete and 24 of M25 concrete. Total 24 cubes include 6 of 50% distress, 6 of 60% distress for GFRP and same for CFRP for M20 concrete. Same set of 24 cubes were moulded and distressed for M25 concrete. Distressing was done with respect to average compressive strength of control specimens. All distressed Cubes were tested under CTM after FRP wrapping. The test results reveals that the strength of distressed concrete wrapped with GFRP and CFRP was found to be increased from 24% to 63% as compared to conventional concrete M20 grade. Similarly for conventional concrete of M25 grade the compressive strength was found to be increased from 12% to 32% when wrapped with GFRP and CFRP.

Keywords: Compression Compressive strength, Glass Fiber Reinforced Polymer (GFRP), Carbon Fiber Reinforced Polymer (CFRP), Compression Testing Machine (CTM)

Abstract: When it comes to developing embedded IoT devices, the hardware design is viewed as a critical component for the successes of the IoT product. In order to ensure the embedded IoT product meets the required function, consumes low power and is secure and reliable, a lot of challenges are faced by the embedded IoT device manufacturers during the hardware designing phase of these devices. With the advent of the internet of things or IoT, there has been a massive growth of the embedded systems market due to the speedy development of the connected devices. The embedded intelligent connectivity continues to increase at a phenomenal rate as a result of the Internet of things.

Keywords: Embedded Systems, IoT, Cloud, Database Management