Perceived organizational support, employee engagement and organizational citizenship behaviour among knowledge workers of R&D organization
Employee engagement; Organizational citizenshipbehaviour; Organizational engagement; Perceived organizational support; Work engagement
The reflections of professional life hold an imperative value for an employee. The I/O relationship depends upon myriads of factors. For the sustainability of individual and organization, the internal organization in which the employee operates should provide nurturance and growth to the employee. This study examined perceived organizational support as an antecedent of employee engagement and organizational citizenship behaviour as it`s consequence. The present study employs an ex-post facto research design. 300 knowledge workers (scientists) were assessed on work and organizational engagement, perceived organizational support and organizational citizenship behaviour. Results indicated that perceived organizational support emerged as a significant predictor of work and organizational engagement and organizational citizenship behaviour emerged as a significant consequence of employee engagement. For mediation analysis Baron and Kenny`s (1986) framework was employed and observed that employee engagement partially mediated the relationship between perceived organizational support and organizational citizenship behaviour. 2021 Ecological Society of India. All rights reserved.
Indian Journal of Ecology, Vol-48, pp. 129-134.
Srivastava A., Department of Psychology, CHRIST (Deemed to be University), Delhi NCR, 201 003, India
Self-esteem, eudemonic well-being and flow at work among managers in banking sector
Eudemonic well-being; Flow at work; Managers; Self-esteem
The present research tries to establish a link among well-being, flow at work and self-esteem among managers working in banking sector. The present study aimed to investigate the gender differences in self-esteem eudemonic well-being and flow at work among managers in banking sector, and ascertain the role of self-esteem and eudemonic well-being in predicting flow at work. The present study employs an ex-post facto research design and uses purposive sampling technique to select the respondents (N=100 male and 100 female managers working in the private banks). The data was first checked for normality and then t- test and stepwise multiple regression analysis was used to analyze it. There are significant gender differences on self-esteem, employee well-being and flow at work. Different set of predictors emerged for flow at work for males and females. Studying self-esteem, eudemonic well-being and flow at work has implications not only for the individual but also for the organizations as well, as employees with better well-being and having high self-esteem will eventually help the organization to achieve its goals and objectives. 2021 Ecological Society of India. All rights reserved.
Indian Journal of Ecology, Vol-48, pp. 135-141.
Shukla R., Department of Psychology, CHRIST (Deemed to be University), Delhi NCR, 201 003, India
Moderating Role of Project Innovativeness on Project Flexibility, Project Risk, Project Performance, and Business Success in Financial Services
Business success; Financial Services; Project flexibility; Project innovativeness; Project performance; Project risk management; Project success
Project risk management is crucial for project success and for achieving short-term and long-term project goals. This study examines the linkage between the management of project risks and project flexibility for information technology projects in Financial Services. A conceptual framework establishing the link between project risks, project flexibility, project performance, and business success, with project innovativeness as a moderating variable, has been introduced. To test the model, data were collated from over 400 managers working in Financial Services projects. The empirical outcomes through a Ordinal regression analysis demonstrate a substantial association between the management of project risks, project flexibility, and success of projects. Project innovativeness moderates the effects of project risks and project flexibility on project performance. Furthermore, managing project risks is vital to reduce the likelihood of failures in projects. This paper enriches existing research by applying a contingency perspective to project risk management and provides practical guidance for managing risks in projects professionally and also the relevancy of project flexibility. 2021, Global Institute of Flexible Systems Management.
Global Journal of Flexible Systems Management, Vol-22, No. 3, pp. 179-196.
Tiwari P., School of Business and Management, CHRIST (Deemed To Be University), Bengaluru, 560029, India; Suresha B., School of Business and Management, CHRIST (Deemed To Be University), Bengaluru, 560029, India
Parametric optimization on hot air assisted hybrid machining of soda-lime glass using Taguchi based grey relational analysis
Depth of cut; Hot air assisted hybrid machining; Material removal rate; SEM micrographs; Surface roughness
The present research underlines the development of a hybrid method for the machining of soda-lime glass known as the hot air assisted hybrid machining. It is a combination of conventional machining assisted with the jet of hot air. The influence of process variables such as feed of the cutting tool, flow of hot air, depth of cut, and the air temperature on the material removal rate (MRR) and surface roughness (Ra) applied to the grooving operation have been investigated. The Taguchi orthogonal array L27 was considered to reduce the number of experiments. The ANOVA was used to recognize the major influencing process parameters for the MRR and Ra. The results of ANOVA indicate that the air temperature is the most significant parameter for the objective of maximum MRR and minimum Ra with contributions ratios of 56.91% and 52.68% respectively for the grooving operation on soda-lime glass. The optimal machining parameters for the maximum MRR and minimum Ra were found to be A1B1C3D3 and A1B1C1D3 respectively. The multi-objective optimization was performed using the Taguchi based grey relational analysis (GRA). The optimal level of parameters based on GRA for maximum MRR and minimum Ra was found to be A1B1C3D3. In addition, the material removal process was explained with the help of SEM micrographs. 2021, Springer Nature Switzerland AG.
Nagaraj Y.; Jagannatha N.; Sathisha N.; Niranjana S.J.
Multiscale and Multidisciplinary Modeling, Experiments and Design, Vol-4, No. 3, pp. 169-185.
Springer Science and Business Media B.V.
https://doi.org/10.1007/s41939-020-00085-z https://www.scopus.com/inward/record.uri?eid=2-s2.0-85098540423&doi=10.1007%2fs41939-020-00085-z&partnerID=40&md5=93d27fd0c6cea48f089b5a44c93f97ff
Nagaraj Y., Department of Mechanical Engineering, SJM Institute of Technology, Chitradurga, Karnataka, India; Jagannatha N., Department of Mechanical Engineering, SJM Institute of Technology, Chitradurga, Karnataka, India; Sathisha N., Department of Mechanical Engineering, Yenepoya Institute of Technology, Moodabidri, Mangalore, Karnataka, India; Niranjana S.J., Department of Mechanical Engineering, Christ (Deemed to be University), Bangalore, Karnataka, India
Agriculture 4.0 and smart farming: Imperatives of scaling up innovation and farmer capabilities for sustainable business
Agriculture performance; Agriculture sector; Business performance; Farmer's capability; Innovation capability; Production
Smart agriculture adoption during industry 4.0 is creating new scenarios to farmers across the world. Smart farming promotes not only an increase in the agricultural productivity and incomes, but also building resilience to climate change. Small business farmers had to look at all possible means to cope with the technology applications for implementation of agro-transformation agendas for improved production and business performance. Smart farmers have to make use of several technology applications like drones and satellites, IoT (Internet of Things) based sensors, block chain and big data, biotech, farm maintenance technology (optimising water usage, production, and innovation technology) for better agricultural practices. Though such aggrotech opportunities have demonstrated business improvements, how far such smart farming revolution is well received by the agribusiness owners are less researched into. Henceforth, the purpose of this research is to establish the relationship between aggrotech innovation capabilities and farmer's capabilities associated with agriculture firms and its contributions to business performance. Following cross-sectional descriptive study design, and purposive sampling, the study addressed 3 direct and 2 indirect relationships in the model, on 212 farmers. The data was collected from Selangor state of Malaysia. The study applied Smart PLS SEM to analyse the data. The results show that the innovation (technology) capability and farmer's (people) capability have a positive relationship on business performance. The study also shows the partial mediation effect of technology change on innovation capability and business performance as well as employee capability and business performance. The study is novel in its form by applying Resource Based View theory on Smart agriculture, extending possibilities of generalization agriculture sector. 2021 Ecological Society of India. All rights reserved.
Kumar D.M.; Sharma V.; Govindarajo N.S.; Rahmawati
Indian Journal of Ecology, Vol-48, pp. 1-8.
Kumar D.M., GNS University, 821305, India; Sharma V., CHRIST (Deemed to be University), Delhi NCR, 201 003, India; Govindarajo N.S., Xiamen University, 43900, Malaysia; Rahmawati, Muhammadiyah University, Palapo, 91922, Indonesia
Heat transfer enhancement due to nanoparticles, magnetic field, thermal and exponential space-dependent heat source aspects in nanoliquid flow past a stretchable spinning disk
Exponential space-based heat source (ESHS); Magnetic field; Nanoliquid; Nanoparticles; Rotating disk; Thermal-based heat source (THS)
This study explores the heat transfer characteristics of nanoliquid flowing over a rotating disk in the presence of the applied magnetic field and convective boundary condition. The nanoliquid is flowing due to the rotation of the disk with uniform stretching of a disk along the radial direction. Effects of ESHS (exponential space-related heat source) and THS (thermal-related heat source) are the focal concern of this article. The effective thermal conductivity of ethylene glycol (EG)-based graphene oxide (GO) nanoliquid is estimated by using Nans model whereas effective dynamic viscosity is calculated through Brinkman model. The partial differential system which governed the problem is transformed by using Von-Karman stretching transformations to the ordinary differential system. The subsequent two-point ODBVP (ordinary differential boundary value problem) is treated numerically. The consequence of effective parameters of the problem on different flow fields is illustrated graphically. The numerical values of shear stress and heat transfer rate (Nusselt number) are also calculated. Further, the slope of the data points is determined to quantify the outcome. Validation of the present results is made by direct comparison with the available results and an excellent agreement is found. It is found that the rate of heat transfer increased with nanoparticle volume fraction at the rate 0.4153 and the friction factor increased by increasing nanoparticle volume fraction at the rate 3.0681. The fluctuation rate of Nusselt number due to the variation of the ESHS parameter is almost three times more than that of THS parameter. 2020, Akadiai Kiad Budapest, Hungary.
Mahanthesh B.; Shashikumar N.S.; Lorenzini G.
Journal of Thermal Analysis and Calorimetry, Vol-145, No. 6, pp. 3339-3347.
Mahanthesh B., Department of Mathematics, CHRIST (Deemed To Be University), Bangalore, 560029, India; Shashikumar N.S., Department of Mathematics, Malnad College of Engineering, Hassan, 573202, India; Lorenzini G., Department of Engineering and Architecture, University of Parma, Parco Area Delle Scienze 181/A, Parma, 43124, Italy
A Congruent Approach to Normal Wiggly Interval-Valued Hesitant Pythagorean Fuzzy Set for Thermal Energy Storage Technique Selection Applications
IVHPFs; NWHFs; SWARA; Thermal energy storage technique; WASPAS
Thermal energy is the energy from a substance in which molecules and atoms vibrate faster because of an increase in temperature. Thermal energy storage (TES) is an available energy resource for renewable energy platforms that enables them to meet sustainable technical requirements. The TES technique is divided into three categories; sensible TES, latent-heat TES, and thermo-chemical TES. The best of these techniques is selected in this research paper. Here the Interval-Valued Hesitant Pythagorean Fuzzy Set (IVPHFS) under the Normal Wiggly Mathematical Methodology is proposed and described for application to multi-criteria decision making (MCDM) technology. The MCDM methods, the Step-wise Weight Assessment Ratio Analysis (SWARA) method for determining weight values, and the Weighted Aggregated Sum Product Assessment (WASPAS) method for ranking alternative values are used employed here. The alternative values are selected based on the following criteria: capacity, efficiency, storage period, charging and discharging times, and cost 2021, Taiwan Fuzzy Systems Association.
Ramya L.; Narayanamoorthy S.; Kalaiselvan S.; Kureethara J.V.; Annapoorani V.; Kang D.
International Journal of Fuzzy Systems, Vol-23, No. 6, pp. 1581-1599.
Springer Science and Business Media Deutschland GmbH
Ramya L., Department of Mathematics, Bharathiar University, Coimbatore, 641 046, India; Narayanamoorthy S., Department of Mathematics, Bharathiar University, Coimbatore, 641 046, India; Kalaiselvan S., Department of Social Work, Sri Ramakrishna Mission Vidyalaya College of Arts and Science, SRMV, Coimbatore, 641020, Tamil Nadu, India; Kureethara J.V., CHRIST (Deemed to be University), Bangalore, India; Annapoorani V., Department of Mathematics, Bharathiar University, Coimbatore, 641 046, India; Kang D., Department of Industrial and Management Engineering, Institute of Digital Anti-aging Healthcare, Inje University 197 Inje-ro, Gimhae-si, 50834, Gyeongsangnam-do, South Korea
Exploring effect of instagram influencer likeability and personality traits on self-concept and impact on consumer buying intention towards cosmetic products
Buying intentions; Likeability; Personality Traits; Self-concept; Self-congruity; Social media influencers
With the advent of visual micro-blogging platforms like Instagram the communication environment for businesses has certainly undergone massive change. Over the years these platforms have evolved and brands have had to adapt themselves to gain visibility among the millennial audience by being available on the social media platforms. The disruptive force of these social media platforms has a great impact on the consumer decision making processes. As a result, consumers now rely more on recommendation from their peers. The sharing of views, experiences, opinions and expectations online by the users on various social media platforms have become a trusted source of information for the consumers. This had led to brands connecting to online celebrities known as Social media influencers (SMI) to distribute information and influence consumer's product perceptions i.e., the concept of influencer marketing. SMI's are referred to as online opinion leaders with large numbers of followers to drive messages through their promotional posts. A lot of research has been done to study the impact of celebrity endorsements but currently there is a gap in research pertaining to consumer's perspective towards the SMI's and SMI's effects on consumers. The online survey of self -concept and alters its buying intentions when an influencer posts promotional conducted in the studies how the likeability and personality traits of an influencer affects the consumer understanding posts on Instagram. Significant relationships were found for both, the likability traits and consumer self-concept and personality traits and consumer self-concept. Also using predictive analysis, the extent to which each of the consumer self-concept statements affected the buying intentions was determined. These results provide practical implications for brand managers who plan to invest in influencer marketing. 2021 Ecological Society of India. All rights reserved.
Indian Journal of Ecology, Vol-48, pp. 56-63.
Suresh A.S., School of Business and Management, Christ University, Bangalore, 560 029, India; Balaji V., School of Business and Management, Christ University, Bangalore, 560 029, India
A study on entropy generation and heat transfer in a magnetohydrodynamic flow of a couple-stress fluid through a thermal nonequilibrium vertical porous channel
entropy generation; Galerkin method; local thermal nonequilibrium; magnetohydrodynamic flow; porous media; radiation; Rosseland approximation
The effect of local thermal nonequilibrium (LTNE) on the entropy generation and heat transfer characteristics in the magnetohydrodynamic flow of a couple-stress fluid through a high-porosity vertical channel is studied numerically using the higher-order Galerkin technique. The Boussinesq approximation is assumed to be valid and the porous medium is considered to be isotropic and homogeneous. Two energy equations are considered one each for solid and fluid phases. The term involving the heat transfer coefficient in both equations renders them mutually coupled. Thermal radiation and an internal heat source are considered only in the fluid phase. The influence of inverse Darcy number, Hartmann number, couple-stress fluid parameter, Grashof number, thermal radiation parameter, and interphase heat transfer coefficient on velocity and temperature profiles is depicted graphically and discussed. The entropy generation, friction factor, and Nusselt number are determined, and outcomes are presented via plots. The effect of LTNE on the temperature profile is found to cease when the value of the interphase heat transfer coefficient is high, and in this case, we get the temperature profiles of fluid and solid phases are uniform. The physical significance of LTNE is discussed in detail for different parameters' values. It is found that heat transport and friction drag are maximum in the case of LTNE and minimum in the case of local thermal equilibrium. We observe that LTNE opposes the irreversibility of the system. The corresponding results of a fluid-saturated densely packed porous medium can be obtained as a limiting case of the current study. 2021 Wiley Periodicals LLC
Siddabasappa C.; Siddheshwar P.G.; Makinde O.D.
Heat Transfer, Vol-50, No. 6, pp. 6377-6400.
https://doi.org/10.1002/htj.22176 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85105744920&doi=10.1002%2fhtj.22176&partnerID=40&md5=d1a54c1c07250e739bae78ef87e98f23
Siddabasappa C., Department of Mathematics and Statistics, M. S. Ramaiah University of Applied Sciences, Bangalore, Karnataka, India; Siddheshwar P.G., Department of Mathematics, CHRIST (Deemed to be University), Bangalore, Karnataka, India; Makinde O.D., Faculty of Military Science, Stellenbosch University, Saldanha, South Africa
Analysis of food consumption expenditure patterns for developing sustainable business practices
Food consumption expenditure; Income elasticity; Per-capita expenditure; Product diversification; Sustainable business practices
Food consumption patterns are said to be near ideal variable since it is one of the most important commodities that ensure human survival. The patterns within the consumption as well as between different types of food items to different levels of consumption varies with respect to the macroeconomic conditions. The consumption expenditure for cereals, pulses and pulse products, edible oil, milk and milk products, meat, fish and egg, vegetables and fruits, shows an increasing trend in India and in Karnataka. The income elasticity for all food categories are lesser in urban sectors of Karnataka than the rural sector which indicates that the income of the rural households is lesser and the increase in income is also lesser compared to that of the Urban-Karnataka. The business enterprises can aim at sustainable consumption practices through the pricing strategies, product design and distribution channels. 2021 Ecological Society of India. All rights reserved.
Indian Journal of Ecology, Vol-48, pp. 23-28.
Gopurathingal A.G., Department of Economics, Christ (Deemed to be University), Bengaluru, 560 029, India; Karakunnel J.J., Department of Economics, Christ (Deemed to be University), Bengaluru, 560 029, India
Quartic autocatalysis of homogeneous and heterogeneous reactions in the bioconvective flow of radiating micropolar nanofluid between parallel plates
Chebyshev Collocation method; gyrotactic microorganisms; Lie group analysis; micropolar nanofluid; quartic autocatalysis; successive linearization method
This study deals with the quartic autocatalysis of homogeneousheterogeneous chemical reaction that occurs in the bioconvective flow of micropolar nanofluid between two horizontally parallel plates. The quartic autocatalysis is found to be more effective than cubic autocatalysis since the concentration of the homogeneous species is substantially high. The upper plate is assumed to be in motion and the lower plate is kept stationary. Such a flow of micropolar fluid finds application in the pharmaceutical industry, microbial enhanced oil recovery, hydrodynamical machines, chemical processing,and so forth. The governing equations for this flow are in the form of the partial differential equation and their corresponding similarity transformation is obtained through Lie group analysis. The governing equations are further transformed to coupled nonlinear differential equations that are linearized through the Successive linearization method and are solved using the Chebyshev Collocation method. The effects of various parameters, such as micropolar coupling parameter, spin gradient parameter, reaction rates, and so forth, are analyzed. It is observed that the fluid flows with a greater velocity away from the channel walls, whereasnear the channel walls the velocity decreases with an increase in the coupling parameter. Furthermore, the spin parameter increases the spin gradient viscosity that reduces the microrotation of particles that further decreases the microrotation profile. 2021 Wiley Periodicals LLC
Puneeth V.; Manjunatha S.; Gireesha B.J.
Heat Transfer, Vol-50, No. 6, pp. 5925-5950.
https://doi.org/10.1002/htj.22156 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85104625680&doi=10.1002%2fhtj.22156&partnerID=40&md5=7e29f3fb2e576863c211811295d7aa5a
Puneeth V., Department of Mathematics, CHRIST (Deemed to be University), Bengaluru, Karnataka, India; Manjunatha S., Department of Sciences and Humanities, CHRIST (Deemed to be University), Bengaluru, Karnataka, India; Gireesha B.J., Department of Studies and Research in Mathematics, Kuvempu University, Shimoga, Karnataka, India
Influence of heat treatment and reinforcements on tensile characteristics of aluminium aa 5083/silicon carbide/fly ash composites
AA 5083 alloy; Characteristics; Composite; Composites; Denture base; Fly ash; Heat treatment; Sandblasting; Silicon carbide; Tensile
The effect of reinforcements and thermal exposure on the tensile properties of aluminium AA 5083silicon carbide (SiC)fly ash composites were studied in the present work. The specimens were fabricated with varying wt.% of fly ash and silicon carbide and subjected to T6 thermal cycle conditions to enhance the properties through precipitation hardening. The analyses of the microstructure and the elemental distribution were carried out using scanning electron microscopic (SEM) images and energy dispersive spectroscopy (EDS). The composite specimens thus subjected to thermal treatment exhibit uniform distribution of the reinforcements, and the energy dispersive spectrum exhibit the presence of Al, Si, Mg, O elements, along with the traces of few other elements. The effects of reinforcements and heat treatment on the tensile properties were investigated through a set of scientifically designed experimental trials. From the investigations, it is observed that the tensile and yield strength increases up to 160?C, beyond which there is a slight reduction in the tensile and yield strength with an increase in temperature (i.e., 200?C). Additionally, the % elongation of the composites decreases substantially with the inclusion of the reinforcements and thermal exposure, leading to an increase in stiffness and elastic modulus of the specimens. The improvement in the strength and elastic modulus of the composites is attributed to a number of factors, i.e., the diffusion mechanism, composition of the reinforcements, heat treatment temperatures, and grain refinement. Further, the optimisation studies and ANN modelling validated the experimental outcomes and provided the training models for the test data with the correlation coefficients for interpolating the results for different sets of parameters, thereby facilitating the fabrication of hybrid composite components for various automotive and aerospace applications. 2021 by the authors.
Nagaraja S.; Kodanda R.; Ansari K.; Kuruniyan M.S.; Afzal A.; Kaladgi A.R.; Aslfattahi N.; Saleel C.A.; Gowda A.C.; Bindiganavile Anand P.
All Open Access; Gold Open Access; Green Open Access
https://doi.org/10.3390/ma14185261 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85114942397&doi=10.3390%2fma14185261&partnerID=40&md5=876043e7f4ae8ed59efed69026c71691
Nagaraja S., Department of Mechanical Engineering, MVJ College of Engineering, Near ITPB, Whitefield, Bangalore, 560067, India; Kodanda R., Department of Mechanical Engineering, School of Engineering and Technology, CHRIST (Deemed to be University), Bangalore, 560074, India; Ansari K., Department of Civil Engineering, Yeshwantrao Chavan College of Engineering, Nagpur, 441110, India; Kuruniyan M.S., Department of Dental Technology, College of Applied Medical Science, King Khalid University, P.O. Box 394, Abha, 61421, Saudi Arabia; Afzal A., Department of Mechanical Engineering, P. A. College of Engineering (Affiliated to Visvesvaraya Technological University, Belagavi), Mangaluru, 574153, India, Department of Mechanical Engineering, School of Technology, Glocal University, Delhi-Yamunotri Marg, SH-57, Saharanpur, Mirzapur Pole, 247121, India; Kaladgi A.R., Department of Mechanical Engineering, P. A. College of Engineering (Affiliated to Visvesvaraya Technological University, Belagavi), Mangaluru, 574153, India; Aslfattahi N., Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, 50603, Malaysia; Saleel C.A., Department of Mechanical Engineering, College of Engineering, King Khalid University, P.O. Box 394, Abha, 61421, Saudi Arabia; Gowda A.C., Department Studies of Mechanical Engineering, Visvesvaraya Technological University, Chikkaballapura, Muddenahalli, 562103, India; Bindiganavile Anand P., Department of Mechanical Engineering, Nitte Meenakshi Institute of Technology, Bangalore, 560064, India
The Factors Impacting Parental Choice in Picking Non-public Schools for Their Children
children; factors; non-public schools; parental choice
The purpose of the study was to investigate the school related factors influencing parental choice of private schools in the city of Bangalore. The study intended to analyze factors affecting parents choice of private schools in Bangalore, to discuss the extent to which various factors influence parents choice of private schools. The study used descriptive survey design. The target population of this study consisted of all parents of students studying in private primary schools in the city of Bangalore. A total sample of 180 parents was drawn purposively from Bangalore. The tool used for collecting the data was a self-constructed questionnaire which included 32 statements were prepared on the basis of a 5-point Likert scale. The study identified seven distinct factors affecting the parents decision of choosing a private school. Among these the factor that was seen to have most significant influence on parents decision to choose a private was school environment. The second most important factor that parents considered was the School quality. Third, parents considered curricular activities offered by school. Next, parents considered Quality of instruction while choosing a school. However, student welfare, parental involvement and proximity to the area of residence were considered less important by parents when choosing a school. The Author(s) 2021.
Education and Urban Society, Vol-53, No. 7, pp. 761-777.
Ved A.S., School of Education, CHRIST (Deemed to be University), Bangalore, Karnataka, India; M.P.M P.K., School of Education, CHRIST (Deemed to be University), Bangalore, Karnataka, India
Unsteady squeezing flow of a magnetized nano-lubricant between parallel disks with Robin boundary conditions
Brownian motion; convective heating; Nanofluid; nanoparticles; parallel disks; Robin (mixed) boundary conditions; smart nano-lubrication; squeezing flow; thermophoresis
The aim of the present work is to examine the impact of magnetized nanoparticles (NPs) in enhancement of heat transport in a tribological system subjected to convective type heating (Robin) boundary conditions. The regime examined comprises the squeezing transition of a magnetic (smart) Newtonian nano-lubricant between two analogous disks under an axial magnetism. The lower disk is permeable whereas the upper disk is solid. The mechanisms of haphazard motion of NPs and thermophoresis are simulated. The non-dimensional problem is solved numerically using a finite difference method in the MATLAB bvp4c solver based on Lobotto quadrature, to scrutinize the significance of thermophoresis parameter, squeezing number, Hartmann number, Prandtl number, and Brownian motion parameter on velocity, temperature, nanoparticle concentration, Nusselt number, factor of friction, and Sherwood number distributions. The obtained results for the friction factor are validated against previously published results. It is found that friction factor at the disk increases with intensity in applied magnetic field. The haphazard (Brownian) motion of nanoparticles causes an enhancement in thermal field. Suction and injection are found to induce different effects on transport characteristics depending on the specification of equal or unequal Biot numbers at the disks. The main quantitative outcome is that, unequal Biot numbers produce significant cooling of the regime for both cases of disk suction or injection, indicating that Robin boundary conditions yield substantial deviation from conventional thermal boundary conditions. Higher thermophoretic parameter also elevates temperatures in the regime. The nanoparticles concentration at the disk is boosted with higher values of Brownian motion parameter. The response of temperature is similar in both suction and injection cases; however, this tendency is quite opposite for nanoparticle concentrations. In the core zone, the resistive magnetic body force dominates and this manifests in a significant reduction in velocity, that is damping. The heat build-up in squeeze films (which can lead to corrosion and degradation of surfaces) can be successfully removed with magnetic nanoparticles leading to prolonged serviceability of lubrication systems and the need for less maintenance. IMechE 2021.
Umavathi J.C.; Patil S.L.; Mahanthesh B.; B O.A.
Proceedings of the Institution of Mechanical Engineers, Part N: Journal of Nanomaterials, Nanoengineering and Nanosystems, Vol-235, No. 45750, pp. 67-81.
Umavathi J.C., Department of Mathematics, Gulbarga University, Gulbarga, Karnataka, India; Patil S.L., Department of Mathematics, Gulbarga University, Gulbarga, Karnataka, India; Mahanthesh B., Department of Mathematics, CHRIST (Deemed to be University), Bengaluru, Karnataka, India; B O.A., School of Science, Engineering and Environment, University of Salford, Salford, United Kingdom
Continuity and changes in food consumption pattern among Tibetan refugee community in India
Dietary intake; Food Continuity; Food insecurity; Health; Nutrition
The Food consumption pattern of refugee communities is being carried out by many scholars and few acknowledged the food continuity, its implications on the health of refugees in the host country. The present study highlights food continuity among Tibetan refugees in the Bylakuppe settlement, India. 200 household data were administered to understand food consumption patterns by employing a structured household questionnaire. Simultaneously, 23 individual data were collected consisting of first migrants (15) and second-generation (8) for the qualitative study. Households derive energy mainly from carbohydrates and animal fats, and there is a prevalence of food insecurity among the Tibetan community. It is a proven fact that food insecurity will have serious health consequences in terms of emotional and mental well-being and suggest the need for further study of food insecurity among Tibetan refugees across the world. 2021
Future of Food: Journal on Food, Agriculture and Society, Vol-9, No. 3, pp. 1-11.
https://doi.org/10.17170/kobra-202102163264 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85120324883&doi=10.17170%2fkobra-202102163264&partnerID=40&md5=ce97d501cab34a050989541141e7272b
Namgha T., Dalai Lama Institute for Higher Education, Affiliated to Bengaluru University; Ganesh L., School of Business and Management CHRIST, Deemed to be University, Hosur Road, Bangalore, 560029; Jyotishi A., School of Development, Azim Premji University, Bangalore, India
AI enabled applications towards intelligent transportation
Intelligent transportation systems; Logistics; Public transport; Safety management; Traffic management; Transport management systems
Artificial intelligence (AI) is the ability of a machine to perform cognitive functions like perceiving, reasoning, learning and problem-solving which humans are capable of performing at ease. AI has gained traction since the past two decades across the globe due to availability of huge volume of data generated through Internet. There has been a huge benefit to governments and businesses by processing this data using advanced algorithms in the recent past. The robust growth of machine learning algorithms supported by various technologies like Internet of Things, Robotic Process Automation, Computer Vision, Natural Language Processing have enabled the growth of AI. This article is a compilation of various issues plaguing Transport Industry classified under Intelligent Transportation Systems. Some of the sub-systems considered are related to Traffic Management, Public Transport, Safety Management, Manufacturing & Logistics from Intelligent Transportation Systems where AI benefits are put into use. The study takes up specific areas of concern in transport industry and its related issues that have possible solutions using AI. The approach involves a secondary study based on the country-wise data available from various sources. Further, discussions on AI solutions to resolve issues in transport industry across various countries in the globe and in Indian states is taken up. 2021
https://doi.org/10.1016/j.treng.2021.100083 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85111291369&doi=10.1016%2fj.treng.2021.100083&partnerID=40&md5=f86cb7fcc8eaca96f041a1c9e4137d5c
Iyer L.S., School of Business and Management CHRIST (Deemed to be University), Bangalore, 560029, India
Executive functions and psychological flourishing in public sector employees
Cognitive flexibility; Executive functions; Psychological flourishing; Working memory
The present study examined the relationship between executive functions and psychological flourishing. Executive functions are based on three broad brain capacities namely: inhibitory control, working memory and cognitive flexibility. The participants for the study comprised 99 executives working in public sector organizations in India. Correlational analysis was computed to examine the relationship between executive functions and psychological flourishing. Multiple regression was used to find out if executive functions predicted psychological flourishing. The significant positive association of psychological flourishing with self-restraint, working memory, emotional control, focus, task initiation, planning/prioritization, organization, time management, defining and achieving goals, flexibility and observation was observed. The results of the multiple regression indicated that working memory, focus and observation predicted psychological flourishing. 2021 Ecological Society of India. All rights reserved.
Indian Journal of Ecology, Vol-48, pp. 142-146.
Pasupuleti S., Department of Psychology, GSHS, GITAM University, Hyderabad, 502 329, India; Chukkali S., CHRIST (Deemed to be University), Delhi-NCR, 201 003, India
Magneto convective flow of casson nanofluid due to Stefan blowing in the presence of bio-active mixers
Brownian motion; casson nanofluid; Gyrotactic microorganisms; induced magnetic field; Stefan blowing; thermophoresis
The induced magnetic field for three-dimensional bio-convective flow of Casson nanofluid containing gyrotactic microorganisms along a vertical stretching sheet is investigated. The movement of these microorganisms cause bioconvection and they act as bio-active mixers that help in stabilising the nanoparticles in the suspension. The two forces, Thermophoresis and Brownian motion are incorporated in the Mathematical model along with Stefan blowing. The resulting model is transformed to ordinary differential equations using similarity transformations and are solved using (Formula presented.) method. The Velocity, Induced Magnetic field, Temperature, Concentration of Nanoparticles, and Motile density profiles are interpreted graphically. It is observed that the Casson parameter decreases the flow velocity and enhances the temperature, concentration, and motile density profiles and also it is noticed that the blowing enhances the nanofluid profiles whereas, suction diminishes the nanofluid profiles. On the other hand, it is perceived that the rate of heat conduction is enhanced with Thermophoresis and Brownian motion. IMechE 2021.
Puneeth V.; Manjunatha S.; Gireesha B.J.; Gorla R.S.R.
Proceedings of the Institution of Mechanical Engineers, Part N: Journal of Nanomaterials, Nanoengineering and Nanosystems, Vol-235, No. 45750, pp. 83-95.
Puneeth V., Department of Mathematics, CHRIST (Deemed to be University), Bengaluru, Karnataka, India; Manjunatha S., School of Engineering, CHRIST (Deemed to be University), Bengaluru, Karnataka, India; Gireesha B.J., Department of Studies and Research in Mathematics, Kuvempu University, Shimogga, Karnataka, India; Gorla R.S.R., Department of Aeronautics and Astronautics, Air Force Institute of Technology, Wright-Patterson Air Force Base, OH, United States
STATIC PERFECT FLUID SPACE-TIME ON ALMOST KENMOTSU MANIFOLDS
Almost Kenmotsu (??)0-manifold; Einstein manifold; Kenmotsu manifold; Perfect fluid; Static space-time
In this work, we intend to investigate the characteristics of static perfect fluid space-time metrics on almost Kenmotsu manifolds. At first we prove that if a Kenmotsu manifold M is the spatial factor of static perfect fluid space-time then it is ?-Einstein. Moreover, if the Reeb vector field ? leaves the scalar curvature invariant, then M is Einstein. Next we consider static perfect fluid space-time on almost Kenmotsu (?, ?)0-manifolds and give some characteristics under certain conditions. 2021 Bulgarian Academy of Sciences. All rights reserved.
Journal of Geometry and Symmetry in Physics, Vol-61, pp. 41-51.
https://doi.org/10.7546/jgsp-61-2021-41-51 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85121718699&doi=10.7546%2fjgsp-61-2021-41-51&partnerID=40&md5=3fd4f62ae48e0ade6bb48a8affdd0379
Kumara H.A., Department of Mathematics, Kuvempu University, Shankaraghatta, Karnataka, 577 451, India; Venkatesha V., Department of Mathematics, Kuvempu University, Shankaraghatta, Karnataka, 577 451, India; Naik D.M., Department of Mathematics, CHRIST University, Karnataka, Bengaluru, 560 028, India
Taxonomic studies in the genus Haplanthodes (Acanthaceae)
Endemic; Eudicots; Peninsular India; Pollen; Seed; SEM; Typification
The endemic Indian genus Haplanthodes (Acanthaceae) is revised. Four species, viz. H. neilgherryensis, H. plumosa, H. tentaculata and H. verticillata and a new variety, H. neilgherryensis var. toranganensis are recognized. Lectotype is designated for Haplanthodes, Haplanthus plumosus and H. verticillaris. The nomenclature of the Linnaean name Ruellia tentaculata is also discussed. Micromorphology of seed using light microscope (LM) and scanning electron microscope (SEM) is observed for the first time, and two types, reticulate and micro papillate, have been recognized based on surface sculpturing pattern. The genus differs from the related genera Andrographis and Haplanthus by distinctly two grooved seeds with hygroscopic hairs. Pollen grains of the genus are oblate or prolate spheroidal, distinctly triangular, trizonocolporate with reticulate exine ornamentation. Copyright 2021 Magnolia Press
Deshmukh P.V.; Surveswaran S.; Gore R.Y.; Lekhak M.M.
https://doi.org/10.11646/phytotaxa.516.3.1 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85113584669&doi=10.11646%2fphytotaxa.516.3.1&partnerID=40&md5=7c48235d7eba321cc0a0c796017fac17
Deshmukh P.V., Angiosperm Taxonomy Laboratory, Dept. of Botany, Shivaji University, Maharashtra, Kolhapur, India; Surveswaran S., Department of Life Sciences, CHRIST (Deemed to be University), Bengaluru, India; Gore R.Y., Walchand College of Arts and Science, Maharashtra, Solapur, India; Lekhak M.M., Angiosperm Taxonomy Laboratory, Dept. of Botany, Shivaji University, Maharashtra, Kolhapur, India