Simulation and fabrication of tungsten oxide thin films for electrochromic applications
subject: Electrochromism; Nano-pillars; Simulation; Sputtering; Transmittance; Tungsten oxide (WO3)
description: Electrochromics is the emerging technology that is used in sunlight control window glazing for buildings, automobiles and it can also control indoor climate through smart windows. Electrochromism is the mutable change in optical properties of an electrochromic material caused by redox reactions due to the application of voltage. Easy intercalating the H + ions on a dense electrochromic material (WO3) is the most important parameter as far as the reaction kinetics is concerned. The goal of our work is to improve the electrochemical response of electrochromic material by constructing nano-pillars rather than using dense electrochromic materials. Electrochemical performance of both the dense (planar) and porus (nano pillars) structures were simulated and experimentally proved with a systematic discussion in the present work. It is proven and shown here the increase in the electrochemical kinetics through easy diffusion of ions into the nanostructured electrochromic material. 2022 Elsevier B.V.
creator: Naveen Kumar K.; Nithya G.; Shaik H.; Hemanth B.; Chethana M.; Kishore K.; Madhavi V.; Jafri R.I.; Sattar S.A.; Gupta J.; Ashok Reddy G.V.
source: Physica B: Condensed Matter, Vol-640
publisher: Elsevier B.V.
date: 2022-01-01
rights: Restricted Access
relation: ISSN: 9214526; CODEN: PHYBE
format: Online
language: English
type: Article
coverage: Naveen Kumar K., Department of Physics, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, 560064, India, Centre for Nano-materials and MEMS, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, 560064, India; Nithya G., Department of Electronics and Communication, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, 560064, India, Centre for Nano-materials and MEMS, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, 560064, India; Shaik H., Department of Physics, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, 560064, India, Centre for Nano-materials and MEMS, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, 560064, India; Hemanth B., Department of Electronics and Communication, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, 560064, India; Chethana M., Department of Electronics and Communication, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, 560064, India; Kishore K., Department of Electronics and Communication, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, 560064, India; Madhavi V., Interdisciplinary Centre for Energy Research, Indian Institute of Science, Bengaluru, 560012, India; Jafri R.I., Department of Physics and Electronics, Christ University, Hosur Road, Bengaluru, 560029, India; Sattar S.A., Department of Physics, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, 560064, India; Gupta J., Department of Physics, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, 560064, India, Centre for Nano-materials and MEMS, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, 560064, India; Ashok Reddy G.V., Department of Physics, Nitte Meenakshi Institute of Technology, Yelahanka, Bengaluru, 560064, India, Department of Physics, SJB Institute of Technology, Kengeri, Bengaluru, 560060, India

Authentic leadership in a pandemic world: an exploratory study in the Indian context
subject: Authentic leadership; COVID; Crisis; Leadership
description: Purpose: The purpose of this paper is to explore the strategies that helps leaders be authentic in order to be able to respond proactively and become effective in helping their organisations they lead in the context of the COVID-19 pandemic. Design/methodology/approach: Using a qualitative approach, 25 business leaders from diverse sectors were interviewed to understand what sustained them in an adverse context. Findings: Results reveal various dimensions of authentic leadership in a disruptive environment. Authentic leaders have to exhibit distinct behaviours that stems from re-examining oneself to reaffirming organisational purpose. Reimagining the work is emerged as the newer dimension to the authentic leadership considering the context of COVID-19. Practical implications: The results of the study provides insights for anyone leading organisations in today's disruptive business environment. The findings of this study can be used further to undertake quantitative studies to test professional relationships and understand the leadership strategies at different time frames. Originality/value: This paper addresses the strategies that leaders successfully follow to withstand the COVID crisis and highlights the different roles and behaviours that helped leaders to address the crisis confidently. 2022, Emerald Publishing Limited.
creator: Chully A.A.; Jose J.; Luthufi M.
source: Journal of Management Development, Vol-41, No. 5, pp. 301-316.
publisher: Emerald Group Holdings Ltd.
date: 2022-01-01
rights: Restricted Access
relation: ISSN: 2621711
format: Online
language: English
type: Article
coverage: Chully A.A., CHRIST (Deemed to be University), Pune, India; Jose J., CHRIST (Deemed to be University), Pune, India; Luthufi M., School of Management and Labour Studies, Tata Institute of Social Sciences (TISS), Mumbai, India

Critical concepts of restrained domination in signed graphs
subject: critical concepts; restrained domination number; Signed graphs
description: A signed graph ? is a simple undirected graph in which each edge is either positive or negative. Restrained dominating set D in ? is a restrained dominating set of the underlying graph |?| where the subgraph induced by the edges across ?[D: V D] and within V D is balanced. The minimum cardinality of a restrained dominating set of ? is called the restrained domination number, denoted by ?r(?). In this paper, we initiate the study on various critical concepts to investigate the effect of edge removal or edge addition on restrained domination number in signed graphs. 2022 World Scientific Publishing Company.
creator: Mathias A.J.; Sangeetha V.; Acharya M.
source: Discrete Mathematics, Algorithms and Applications, Vol-14, No. 6
publisher: World Scientific
date: 2022-01-01
rights: Restricted Access
relation: ISSN: 17938309
format: Online
language: English
type: Article
coverage: Mathias A.J., Department of Mathematics, Christ (Deemed to Be University), Bengaluru, Karnataka, 560029, India; Sangeetha V., Department of Mathematics, Christ (Deemed to Be University), Bengaluru, Karnataka, 560029, India; Acharya M., Department of Mathematics, Christ (Deemed to Be University), Bengaluru, Karnataka, 560029, India

Child sexual abuse prevention involving mothers: A Quasi-experimental study with Protection Motivation Theory-based intervention
subject: child sexual abuse; India; intervention; mothers; prevention
description: Child sexual abuse (CSA) is a worldwide problem. The safety of children is everybody's responsibility. Parental and family involvement is crucial in the CSA prevention process. Parental lack of knowledge may increase the risk of abuse among children. Educating parents is crucial as children are mostly dependent on them. The role of mothers in educating children on CSA is of relevance as they are identified as more sensitive and responsible caregivers. The present study aimed to promote knowledge and attitude towards CSA prevention among mothers through a psychoeducation program. A pre- and posttest design (n = 67) was used with an intervention based on Protection Motivation Theory (PMT). A CSA knowledge and attitude scale was developed for the assessment of the participants for the study. There were significant changes in knowledge and attitude among the participants after the intervention. The prevention of CSA will be effective with knowledge gains after the PMT-based intervention. The intervention programs that involve mothers in CSA education have benefits. The findings of this study can be helpful to incorporate public health approaches to devise evidence-based parental programs in community settings. 2022 Wiley Periodicals LLC.
creator: Bhagyalakshmi K.C.; Kumar A.
source: Journal of Community Psychology, Vol-50, No. 8, pp. 3733-3745.
publisher: John Wiley and Sons Inc
date: 2022-01-01
rights: Restricted Access
relation: ISSN: 904392; PubMed ID: 35460576
format: Online
language: English
type: Article
coverage: Bhagyalakshmi K.C., Department of Psychology, Christ (Deemed to be University), Karnataka, Bengaluru, India; Kumar A., Department of Psychology, Christ (Deemed to be University), Karnataka, Bengaluru, India

Influence of higher-order modes on ferroconvection
description: Using Fourier representations, an elaborate study of regular cellular-convective and chaotic motions in a ferrofluid is made. Investigation is made on the adequacy or otherwise of the minimal mode in studying such motions. Higher-order modes are also considered by adding modes (vertical/horizontal/combined extension). For higher modes, the extensions yield a dynamical system of order greater than three. The characteristic features of extended ferromagnetic-Lorenz models are analyzed using the largest Lyapunov exponent(LE), second largest LE, bifurcation diagram, and phase-space plots. The effect of additional modes on critical modal-Rayleigh (infinitesimal and finite-amplitude ones) numbers and the Rayleigh number at which transition to chaos occurs are examined to report features of ferroconvection hitherto unseen in previous studies. As both horizontal and vertical modes are increased, our findings infer that the dynamical system displays advanced onset of regular convection and delayed chaotic motion. Vigorous-chaotic motion is seen on adding vertical modes, whereas on adding horizontal modes, intense chaos appears with decreased intensity for large values of the scaled Rayleigh number. Most important finding from the study is that as modes are increased (vertical/horizontal), the transition from regular to chaotic motion is greatly modified and leads the system to a hyper-chaotic state. Conventionally, the chaotic or hyper-chaotic state is intermittent with a periodic/quasi-periodic state but it can be retained in the chaotic or hyper-chaotic state by considering moderate values of the Prandtl number and/or by bringing in the ferromagnetic effect. 2022 Author(s).
creator: Kanchana C.; Vez J.A.; Pez L.M.; Laroze D.; Siddheshwar P.G.
source: Chaos, Vol-32, No. 8
publisher: American Institute of Physics Inc.
date: 2022-01-01
rights: Restricted Access
relation: ISSN: 10541500; PubMed ID: 36049924
format: Online
language: English
type: Article
coverage: Kanchana C., Instituto de Alta Investigaci, Sede Esmeralda Universidad de Tarapac Av. Luis Emilio Recabarren 2477, Iquique, Chile; Vez J.A., Instituto de Alta Investigaci, CEDENNA, Universidad de Tarapac Casilla 7 D, Arica, 1000000, Chile; Pez L.M., Departamento de Fica, FACI, Universidad de Tarapac Casilla 7 D, Arica, 1000000, Chile; Laroze D., Instituto de Alta Investigaci, CEDENNA, Universidad de Tarapac Casilla 7 D, Arica, 1000000, Chile; Siddheshwar P.G., Center for Mathematical Needs, Department of Mathematics, CHRIST(Deemed to Be University), Bengaluru, 560029, India

Efficiency Wage and Productivity in the Indian Microfinance Industry: A Panel Evidence
subject: Efficiency wage; financial sustainability; India; microfinance; microfinance institutions; mission drift; outreach
description: Enhanced productivity remains a crucial agenda for firms to attain cost and competitive advantages in the market. Hence, the main purpose of this study is to investigate the effects of efficiency wage (EW) on the productivity of microfinance institutions (MFIs) with respect to their dual objectives, namely, outreach (depth and breadth) and financial sustainability. Unbalanced panel data of 179 Indian MFIs were collected over the period 20102018 from the Microfinance Information Exchange (MIX) market platform (now obtainable from the World Bank catalogue). Under a static model setting (fixed effects model), the observed relationship between EW and MFIs productivity is mixed. On the one hand, EW exhibits a strong and statistically significant positive relationship with the breadth of outreach, even after considering various control variables and alternative proxies of EW. On the other hand, EW shows no positive influence on the MFIs depth of outreach; rather, it results in a mission drift of MFIs, with the poorest of the poor being neglected (weak and insignificant for proxy of EW). Concerning the financial sustainability of MFIs, EW exhibits a positive and statistically significant effect, except for the profitability dimension when an alternative proxy of EW is used. A two-step system generalized method of moments (GMM) performed to limit endogeneity problems also validates most of our findings. The outcomes of this study could help MFIs managers in designing appropriate financial packages to enhance MFIs productivity and subsequently attain the dual objective of outreach and sustainability. 2022 SAGE Publications.
creator: Mia M.A.; Pellegrina L.D.; Zhang C.; Sangwan S.
source: IIM Kozhikode Society and Management Review, Vol-11, No. 2, pp. 235-252.
publisher: Sage Publications India Pvt. Ltd
date: 2022-01-01
rights: Restricted Access
relation: ISSN: 22779752
format: Online
language: English
type: Article
coverage: Mia M.A., School of Management, Universiti Sains Malaysia, Penang, Malaysia; Pellegrina L.D., Department of Economics, Management and Statistics (DEMS), University of Milano-Bicocca, Piazza Ateneo Nuovo, Milan, Italy; Zhang C., School of Accounting, Nanjing University of Finance and Economics, Nanjing, China; Sangwan S., Department of Commerce, Christ University, Maharashtra, Pune, India

Capacitive dominated charge storage in supermicropores of self-activated carbon electrodes for symmetric supercapacitors
subject: Biomass; Capacitive storage; Porous carbons; Self-activation; Solid-state supercapacitors; True performance metrics
description: The present work demonstrates a systematic study of pore size and specific surface area (SSA) of biomass-derived carbon and the choice of electrolyte concentrations affecting charge-storage mechanism (surface controlled and diffusion controlled) and electrochemical behaviour. Porous nanocarbons derived from Caesalpinia Sappan pods were synthesized by pyrolysis at 400, 600, and 800 C. Pyrolysis at 800 C was found suitable for the self-activation mechanism which formed bimodal porous nanocarbons with a high SSA of 675 m2/g. A maximum specific capacitance of 261.8 F/g at 0.5 A/g in 5.0 M KOH was observed for electrode materials synthesized at 800 C. The highlight of the study is the porous nanocarbon synthesized at 800 C which was found to possess micropores of size 0.71.0 nm playing a pivotal role in enhancing capacitance. The effect of electrolyte concentration on capacitance and charge storage mechanisms was also analyzed. A diffusion-controlled self-discharge model is established for supercapacitor devices. The single cell can power a red LED for 15 min; exemplifying the sustainable strategy of the utilization of abundant bio-waste to efficient energy storage devices. 2022 Elsevier Ltd
creator: Bhat V.S.; Toghan A.; Hegde G.; Varma R.S.
source: Journal of Energy Storage, Vol-52
publisher: Elsevier Ltd
date: 2022-01-01
rights: Restricted Access
relation: ISSN: 2352152X
format: Online
language: English
type: Article
coverage: Bhat V.S., Centre for Nano-materials & Displays (CND), B.M.S. College of Engineering, Bull Temple Road, Karnataka, Bangalore, 560019, India, Department of Materials Science, Mangalore University, Mangalagangotri, Karnataka, Mangalore, 574 199, India; Toghan A., Chemistry Department, Faculty of Science, South Valley University, Qena, 83523, Egypt, Chemistry Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh, 11623, Saudi Arabia; Hegde G., Centre for Advanced Research and Development (CARD), CHRIST (Deemed to be University), Hosur Rd, Bhavani Nagar, S.G. Palya, Karnataka, Bangalore, 29, India, Department of Chemistry, CHRIST (Deemed to be University), Hosur Rd, Bhavani Nagar, S.G. Palya, Karnataka, Bangalore, 29, India; Varma R.S., Regional Center of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacky University, lechtitel? 27, Olomouc, 783 71, Czech Republic

Progress in bio-based biodegradable polymer as the effective replacement for the engineering applicators
subject: Biocomposites; Biomass; Biopolymers; Cellulose; Polyhyroxyalkanoates
description: The development of biopolymers has significantly touched each and every sphere of human life due to their eco friendliness and biodegradability. In recent decades, the production of biopolymers gained profound attention due to the serious environmental concerns and threat to the non-renewable resources. The increased use of synthetic plastic in biomedical and engineering applications stays as a major threat to environment when these xenobiotics enter the food chain and soil upon their careless discharge after use. The significant material properties of plastic has made it as an inevitable part in our day to day life, but the concern over the environment directs the research focus on searching and developing biopolymers and bio composites as sustainable alternatives for their synthetic counterparts. Biopolymers of commercial interest can be majorly produced intracellularly by microbes or can be extracted through chemical or biological methods from plant and animal based substrates. The potential candidates with high market value with specific reference to biomedical engineering and tissue engineering include as polyhydroxyalkanoates, cellulose, chitosan and chitin, hydroxyapatite, and pectin. Despite of having high degree of biocompatibility, the major hurdle that retracts their widespread use commercially is attributed to the cost of production. This can be tackled out by exploiting cheap raw materials like agro waste as substrate and by employing green approaches over solvent based conventional extraction methods. The reduction in the material properties of purified biopolymers restricts their widespread application especially in the fabrication of thermoplastic blends. This can be resolved by production of bio composites with improved properties than their parent biopolymers. The current review focuses on the recent developments in biopolymer science especially with regard to its application in engineering majorly biomedical and tissue engineering. This study thro…
creator: Umesh M.; Shanmugam S.; Kikas T.; Lan Chi N.T.; Pugazhendhi A.
source: Journal of Cleaner Production, Vol-362
publisher: Elsevier Ltd
date: 2022-01-01
rights: Restricted Access
relation: ISSN: 9596526; CODEN: JCROE
format: Online
language: English
type: Article
coverage: Umesh M., Department of Life Sciences, CHRIST (Deemed to be University), Karnataka, Bengaluru, 560029, India; Shanmugam S., Chair of Biosystems Engineering, Institute of Forestry and Engineering, Estonian University of Life Sciences, Kreutzwaldi 56/1, Tartu, 51006, Estonia; Kikas T., Chair of Biosystems Engineering, Institute of Forestry and Engineering, Estonian University of Life Sciences, Kreutzwaldi 56/1, Tartu, 51006, Estonia; Lan Chi N.T., School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Viet Nam; Pugazhendhi A., Emerging Materials for Energy and Environmental Applications Research Group, School of Engineering and Technology, Van Lang University, Ho Chi Minh City, Viet Nam

Design and Optimization of Friction Stir Welding of Al-Cu BUTT Joint Configuration using Taguchi Method
subject: ANOVA; Friction stir welding; Hardened OHNS steel tool; Taguchi L9 orthogonal array; tool pin offset
description: Friction stir welding (FSW) is a solid-state welding technique in which the joint quality was predominantly subjected to heat formation throughout the metal welding process. The weld joint produced from FSW was better than the other fusion welding process. In this research, the base plates AA6101 and C11000 of 5 mm thickness were joined using the hardened oil-hardened non-shrinkable steel(OHNS) tool by the FSW method. The design of experiment (DOE) was used to optimize the input parameters such as tool rotational speed (rpm), feed rate (mm/min), and tool pin offset (mm) on output parameter ultimate tensile strength (UTS). The design of experiment (DOE) was carried out by employing a Taguchi L9 orthogonal array, three factors, and three levels for obtaining a quality joint with good strength. The results of nine trial runs from the Taguchi experimental approach were formulated and analyzed using the statistical tool analysis of variance (ANOVA) using MINITAB 19 software. ANOVA analysis was employed to find the contribution of the input parameters toward the output. The optimized input process parameters will help to create effective weld joints. This study revealed that tool pin offset towards softer metal at medium tool rotational speed would create joints with the highest UTS. Scanning Electron Microscope (SEM) was applied to investigate the structural changes in the FSW of Al-Cu joints. 2022, Books and Journals Private Ltd.. All rights reserved.
creator: Pratap Kumar J.; Raj A.; Ramesha K.; Rout I.S.
source: Journal of Mines, Metals and Fuels, Vol-70, No. 8, pp. 471-479.
publisher: Books and Journals Private Ltd.
date: 2022-01-01
rights: All Open Access; Hybrid Gold Open Access
relation: ISSN: 222755; CODEN: JMMFA
format: Online
language: English
type: Article
coverage: Pratap Kumar J., Department of Mechanical and Automobile Engineering, School of Engineering and Technology, CHRIST (Deemed to be University), Karnataka, Bengaluru, 560074, India; Raj A., Department of Mechanical and Automobile Engineering, School of Engineering and Technology, CHRIST (Deemed to be University), Karnataka, Bengaluru, 560074, India; Ramesha K., Department of Mechanical and Automobile Engineering, School of Engineering and Technology, CHRIST (Deemed to be University), Karnataka, Bengaluru, 560074, India; Rout I.S., Department of Mechanical and Automobile Engineering, School of Engineering and Technology, CHRIST (Deemed to be University), Karnataka, Bengaluru, 560074, India

What is Remembered in Pandemic: A Commentary on the Mediated Memories of Piety in COVID-19
subject: COVID-19 and society; Gender studies; Memory studies; Pandemic and its imaginations; Popular religious piety; Women politicians
description: The paper explores how the experiences of the present pandemic are shaped by the memories of popular religious piety during past pandemics and epidemics. Taking insights from the works of Astrid Erll and Reinhart Koselleck, the process remembering-imagining system within the context of the pandemic is discussed by tracing the reemergence of pandemic deities and narratives of piety in India. Using digitally documented and disseminated narratives on piety emerging during COVID-19, an attempt is made to understand how these narratives shape the experiences, responses, and collective memory of the pandemic. Through a discussion of the shift in the imagination of political leadership and the moral responsibilities of the community, an attempt is made to highlight the mode in which the narratives on piety shape the contours of a time that is otherwise unimaginable. The mediated memories of popular religious piety make it possible to remember similar crisis times and to imagine and reinstate the social order that is threatened by this sudden unimaginable crisis. The paper thus argues that within the context of India, popular religious piety, though often overlooked, becomes a significant part of making sense and shaping the experiences of the pandemic time. 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
creator: Vijayaraghavan A.P.; Chattaraj D.
source: Society, Vol-59, No. 4, pp. 366-372.
publisher: Springer
date: 2022-01-01
rights: All Open Access; Bronze Open Access; Green Open Access
relation: ISSN: 1472011
format: Online
language: English
type: Article
coverage: Vijayaraghavan A.P., Department of English and Cultural Studies, Christ University, Room No. 662, Bannerghatta Main Rd, Pai Layout, Hulimavu, Karnataka, Bangalore, 560076, India; Chattaraj D., Department of English and Cultural Studies, Christ University, Room No. 661, Bannerghatta Main Rd, Pai Layout, Hulimavu, Karnataka, Bangalore, 560076, India

Garlic peel based mesoporous carbon nanospheres for an effective removal of malachite green dye from aqueous solutions: Detailed isotherms and kinetics
subject: Adsorption studies; Biosorbents; Biowaste; Dye removal; Garlic peel; Malachite green; Nanoparticles
description: Biowaste based nanoadsorbents have gained much attention in the recent times for wastewater decolourization owing to their low cost, high surface area and high adsorption capacities. In the present research, garlic peel based nanoparticles (GCNP) were synthesized at different temperatures by a one step pyrolytic green approach for the effective removal of cationic dye, malachite green from the aqueous medium. The surface properties of Garlic nanoparticles were elucidated by N2 adsorption- desorption and all the GCNP samples were found to exhibit Type IV(a) isotherm indicating the presence of mesopores in carbon matrix. Using BET calculations, highest surface area (380 m2/g) was obtained for GCNP synthesized at 1000 ?C. Characterization of nanoparticles was done by XRD, EDAX, SEM and FTIR studies before and after the dye treatment. Adsorption studies conducted using different parameters like contact time, concentration and pH and dosage of adsorbent showed removal efficiency above 90% for the contact time of 70 min. Best adsorption experimental results were obtained for GCNP synthesized at 1000 C ascribable to its high surface area, higher total pore volume (0.26 cm2/g) and higher carbon content. Four adsorption isotherm models were used to validate batch equillibrium studies and the results showed data in good agreement with Langmuir and Freundlich isotherms with maximum Langmuir adsorbtion capactiy to be 373.7 mg/g. Kinetic modelling of the data showed best fit with the Pseudo second order model with rate constant value of 48.726 g mg?1 min?1. Regenerative studies were conducted conducted upto 6 cycles. Also the GC nanoparticles were tested for their compatibility in membrane form wherein, removal efficiency results were obtained for GCNP anchored in polyvinyl difluoride (PVDF) and polysulfone (PSF) membrane matrix for dye adsorption. 2022 Elsevier B.V.
creator: Pathania D.; Bhat V.S.; Mannekote Shivanna J.; Sriram G.; Kurkuri M.; Hegde G.
source: Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, Vol-276
publisher: Elsevier B.V.
date: 2022-01-01
rights: Restricted Access
relation: ISSN: 13861425; CODEN: SAMCA
format: Online
language: English
type: Article
coverage: Pathania D., Centre for Advanced Research and Development (CARD), CHRIST (Deemed to be University), Hosur Rd, Bhavani Nagar, S.G. Palya, Karnataka, Bangalore, 560029, India; Bhat V.S., Department of Material Sciences, Mangalore University, Mangalore, Mangalagangothri, 574199, India; Mannekote Shivanna J., Department of Chemistry, AMC Engineering College, Bannerghatta Road, Bengaluru, 560083, India; Sriram G., Centre for Research in Functional Materials (CRFM), JAIN University, Jain Global Campus, Bengaluru, 562 112, India; Kurkuri M., Centre for Research in Functional Materials (CRFM), JAIN University, Jain Global Campus, Bengaluru, 562 112, India; Hegde G., Centre for Advanced Research and Development (CARD), CHRIST (Deemed to be University), Hosur Rd, Bhavani Nagar, S.G. Palya, Karnataka, Bangalore, 560029, India, Department of Chemistry, CHRIST (Deemed to be University), Hosur Rd, Bhavani Nagar, S.G. Palya, Karnataka, Bengaluru, 560029, India

Blockchain with deep learning-enabled secure healthcare data transmission and diagnostic model
subject: Blockchain; disease diagnosis; encryption; healthcare; privacy; security
description: At these times, internet of things (IoT) technologies have become ubiquitous in the healthcare sector. Because of the increasing needs of IoT, massive quantity of patient data is being gathered and is utilized for diagnostic purposes. The recent developments of artificial intelligence (AI) and deep learning (DL) models are commonly employed to accurately identify the diseases in real-time scenarios. Despite the benefits, security, energy constraining, insufficient training data are the major issues which need to be resolved in the IoT enabled medical field. To accomplish the security, blockchain technology is recently developed which is a decentralized architecture that is widely utilized. With this motivation, this paper introduces a new blockchain with DL enabled secure medical data transmission and diagnosis (BDL-SMDTD) model. The goal of the BDL-SMDTD model is to securely transmit the medical images and diagnose the disease with maximum detection rate. The BDL-SMDTD model incorporates different stages of operations such as image acquisition, encryption, blockchain, and diagnostic process. Primarily, moth flame optimization (MFO) with elliptic curve cryptography (ECC), called MFO-ECC technique is used for the image encryption process where the optimal keys of ECC are generated using MFO algorithm. Besides, blockchain technology is utilized to store the encrypted images. Then, the diagnostic process involves histogram-based segmentation, Inception with ResNet-v2-based feature extraction, and support vector machine (SVM)-based classification. The experimental performance of the presented BDL-SMDTD technique has been validated using benchmark medical images and the resultant values highlighted the improved performance of the BDL-SMDTD technique. The proposed BDL-SMDTD model accomplished maximum classification performance with sensitivity of 96.94%, specificity of 98.36%, and accuracy of 95.29%, whereas the feature extraction is performed based on ResNet-v2 World Sci…
creator: Neelakandan S.; Rene Beulah J.; Prathiba L.; Murthy G.L.N.; Fantin Irudaya Raj E.; Arulkumar N.
source: International Journal of Modeling, Simulation, and Scientific Computing, Vol-13, No. 4
publisher: World Scientific
date: 2022-01-01
rights: Restricted Access
relation: ISSN: 17939623
format: Online
language: English
type: Article
coverage: Neelakandan S., Department of CSE R.M.K Engineering College, Chennai, India; Rene Beulah J., Department of CSE College of Engineering and Technology Faculty of Engineering and Technology SRM Institute of Science and Technology SRM Nagar, Kattankulathur, Chennai, India; Prathiba L., MIT Art Design and Technology University, Pune, India; Murthy G.L.N., Lakireddy Bali Reddy College of Engineering, Andhra Pradesh, Mylavaram, India; Fantin Irudaya Raj E., Department of EEE Dr., Sivanthi Aditanar College of Engineering, Tamilnadu, India; Arulkumar N., Department of CS CHRIST, Deemed to be University), Bangalore, India

Finite Element Analysis of Hybrid Skin Sandwich Composite
subject: Aluminium alloy; ANSYS Mechanical APDL; Areca fibre; Sandwich structured composite
description: Sandwich structured composite is a particular classification in composite materials. This type of structure has been mainly used in recent studies because of its high specific strength, low density, and stiffness. It is increasingly more commonly employed in structural designs due to its features and performance. The sandwich composites used in this investigation are made of aluminium alloys and areca fibre. The sandwich composites face sheet comes in a variety of thicknesses. The adhesive skin layer is also varied to investigate the effect of using natural fibre. The sandwich composite is subjected to 3 point bend test. The modal analysis is investigated using the finite element method. The 3D model of sandwich composites is modelled using solid works 2020. Using Altair Hyper Works, the boundary conditions and meshing is carried out. ANSYS Mechanical APDL is used to analyse the sandwich composites. This investigation analyses the behaviour of composite sandwich beams. 2022, Books and Journals Private Ltd.. All rights reserved.
creator: Rao A.; Niranjana S.J.; Shivakumar S.; Kiran K.; Sharathchandra; Naresh H.; Sampath H.P.
source: Journal of Mines, Metals and Fuels, Vol-70, No. 8, pp. 188-199.
publisher: Books and Journals Private Ltd.
date: 2022-01-01
rights: All Open Access; Hybrid Gold Open Access
relation: ISSN: 222755; CODEN: JMMFA
format: Online
language: English
type: Article
coverage: Rao A., Department of Mechanical and Automobile Engineering, CHRIST University, Bangalore, 560074, India; Niranjana S.J., Department of Mechanical and Automobile Engineering, CHRIST University, Bangalore, 560074, India; Shivakumar S., Department of Mechanical and Automobile Engineering, CHRIST University, Bangalore, 560074, India; Kiran K., Department of Mechanical and Automobile Engineering, CHRIST University, Bangalore, 560074, India; Sharathchandra, Department of Mechanical Engineering, NMAM Institute of Technology, Karnataka, Nitte, 574110, India; Naresh H., Department of Mechanical Engineering, Siddaganga Institute of Technology, Karnataka, Tumkur, 572103, India; Sampath H.P., Department of Mechanical Engineering, VTU, Karnataka, Bangalore, India

Investigation on window opening behavior in naturally ventilated hostels of warm and humid climate
subject: Logistic regression model; Natural ventilation; Occupant behavior; Warm and Humid climate; Window opening behavior
description: A window is an inevitable element of a naturally ventilated building, and its usage improves indoor environmental conditions. Various research has presented window opening behavior models, stating that it may vary with region, climate, season, building type and many more environmental and non-environmental factors. Major studies in India relied on survey data and were not focused on continuous monitoring. Limited occupants behavior studies have been reported in warm and humid climatic zones, specifically in hostel buildings. Also, a realistic description of occupants window opening behavior is require for more accurate evaluation of building performance using energy simulation. Therefore, there is a need to study the window opening behavior to predict the indoor environment more accurately by using energy simulation tools. In this context, a one-year field research involving questionnaire survey, physical observation, and monitoring was conducted in different hostel buildings in Tiruchirappalli, India. Logistic models were developed to predict the window state in hostel buildings in warm and humid region based on physical observational and long-term monitoring data. It is found that window use is influenced by season, time of the day, weekdays, floor level, buildings orientation, user type, and gender. Results also showed that insects and animal menace (snakes, squirrels, lizards, mosquitoes etc.) impede window opening behavior. The study also presented a logistic model for window opening behavior based on outdoor environment conditions for simulation modeling. 2022 Elsevier B.V.
creator: Faheem M.; Bhandari N.; Tadepalli S.; Abinaya J.
source: Energy and Buildings, Vol-268
publisher: Elsevier Ltd
date: 2022-01-01
rights: Restricted Access
relation: ISSN: 3787788; CODEN: ENEBD
format: Online
language: English
type: Article
coverage: Faheem M., Department of Architecture, National Institute of Technology, Tamil Nadu, Tiruchirappalli, 620015, India; Bhandari N., Department of Architecture, National Institute of Technology, Tamil Nadu, Tiruchirappalli, 620015, India; Tadepalli S., Department of Architecture, National Institute of Technology, Tamil Nadu, Tiruchirappalli, 620015, India; Abinaya J., Department of Architecture, National Institute of Technology, Tamil Nadu, Tiruchirappalli, 620015, India, School of Architecture, CHRIST (Deemed to be University), Karnataka, Bengaluru, 560029, India

Compositionally Homogeneous Soft Wrinkles on Elastomeric Substrates: Novel Fabrication Method, Water Collection from Fog, and Triboelectric Charge Generation
subject: buckling instabilities; modulated optical responses; soft surface wrinkles; spin-coating; triboelectric charge generation; water collection
description: Functionality and stimuli-response of natural and artificial elastomeric materials depend significantly on the morphology of their surfaces. Structural transformability and tunable responsiveness of wrinkles on elastomeric materials can enable numerous applications in flexible electronics, optics, and adhesives. Currently existing fabrication techniques rely on sophisticated instrumentation, complex experimental setups, and expensive reagents. These methods are limited in terms of mechanical robustness of the wrinkles produced. Here, a simple, inexpensive, scalable, and reproducible strategy, making use of buckling instability for the creation of soft surface wrinkles on polydimethylsiloxane (PDMS), is presented. PDMS with lower elastic modulus is spin-coated onto a mechanically stretched film of PDMS with a higher elastic modulus. Thermal curing followed by the release of prestrain resulted in the formation of wrinkles in the top layer of the PDMS. The hydrophobic soft surface wrinkles with compositional homogeneity exhibit efficient fog water collection and triboelectric charge generation useful for the preparation of triboelectric nanogenerator devices. Furthermore, the substrates show high mechanical stability and mechanoresponsive optical behaviors. The simplicity and general applicability of the method presented here is expected to establish a promising pathway toward the formation of soft wrinkles in other elastomeric systems also, facilitating important applications in various fields. 2022 Wiley-VCH GmbH.
creator: Raj S.S.; Davis D.; Viswanathan P.; Chandrasekhar A.; Vinod T.P.
source: Macromolecular Materials and Engineering, Vol-307, No. 9
publisher: John Wiley and Sons Inc
date: 2022-01-01
rights: Restricted Access
relation: ISSN: 14387492; CODEN: MMENF
format: Online
language: English
type: Article
coverage: Raj S.S., Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Bengaluru, 560029, India; Davis D., Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Bengaluru, 560029, India; Viswanathan P., Nanosensors and Nanoenergy Lab, Department of Sensors and Biomedical Technology, School of Electronics Engineering, Vellore Institute of Technology, Tamil Nadu, Vellore, 632014, India; Chandrasekhar A., Nanosensors and Nanoenergy Lab, Department of Sensors and Biomedical Technology, School of Electronics Engineering, Vellore Institute of Technology, Tamil Nadu, Vellore, 632014, India; Vinod T.P., Department of Chemistry, CHRIST (Deemed to be University), Hosur Road, Bengaluru, 560029, India

Establishment of Mucuna pruriens (L.) DC. callus and optimization of cell suspension culture for the production of anti-Parkinsons drug: L-DOPA
subject: Cell suspension culture; In vitro; L-DOPA; Mucuna pruriens; Optimization
description: It has become a huge challenge to satisfy the emerging demand for levo-3,4-dihydroxyphenylalanine (L-DOPA), an anti-Parkinsons drug in the international drug market. This is attributed to the conventional methods of extraction from the natural sources of Mucuna spp., which has a low germination rate, less viable seeds, and an irritating, itching trichomes on the pods. The need for an alternative method with continuous supply of L-DOPA without affecting the natural biodiversity has been achieved through in vitro procedures. However, there has not been a systematic approach to optimize the cultural conditions for the maximum productivity. Hence, in this study, we aim at optimizing the cultural conditions for high biomass and L-DOPA production. Various plant growth regulators such as auxins (indole acetic acid, indole butyric acid, picloram [Pic], naphthalene acetic acid, and 2,4-Dichlorophenoxyacetic acid), cytokinins (kinetin, benzylaminopurine, 2-isopentenyl adenine, and thidiazuron), and their combinations have been experimented to figure out the best combination to induce callus. At the same time, various factors such as growth kinetics, different media (MS, Gamborgs-B5, Chus-N6, and Nitsch and Nitsch), media strength (0.5, 1.0, and 2.0X), effect of different macro elements and their strength (0, 0.5,1, 1.5, 2, and 3X), inoculum density, different hydrogen ion concentration (pH), ammonium/nitrate concentration, different sucrose concentrations (010%), and other carbon sources have been investigated in detail for optimizing the cell suspension culture. It was found out that 0.5 mg/L Pic gave the best results for callus induction. With respect to biomass, 6-week growth period (135.7 g/L fresh weight [FW]), 1.0X MS media (126.87 g/L FW), 1.5X magnesium sulfate (266.3 g/L FW), ammonium/nitrate ratio of 21.57/18.8 mM (131.4 g/L FW), pH of 6.0 (129.47 g/L FW), 100 g/L of inoculum (222.2 g/L FW), 3% sucrose concentration (125.6 g/L FW), and 3% glucose (183.4 g/L FW) as o…
creator: Rakesh B.; Praveen N.
source: Journal of Applied Biology and Biotechnology, Vol-10, No. 5, pp. 125-135.
publisher: Open Science Publishers LLP Inc.
date: 2022-01-01
rights: All Open Access; Gold Open Access
relation: ISSN: 2347212X
format: Online
language: English
type: Article
coverage: Rakesh B., Department of Life Sciences, CHRIST (Deemed To Be University), Karnataka, Bengaluru, India; Praveen N., Department of Life Sciences, CHRIST (Deemed To Be University), Karnataka, Bengaluru, India

Decoding the X-Ray Flare from MAXI J0709-159 Using Optical Spectroscopy and Multiepoch Photometry
description: We present a follow-up study on the recent detection of two X-ray flaring events by MAXI/Gas Slit Camera observations in soft and hard X-rays from MAXI J0709-159 in the direction of HD 54786 (LY CMa), on 2022 January 25. The X-ray luminosity during the flare was around 1037 erg s-1 (MAXI), which got reduced to 1032 erg s-1 (NuSTAR) after the flare. We took low-resolution spectra of HD 54786 from the 2.01 m Himalayan Chandra Telescope and the 2.34 m Vainu Bappu Telescope (VBT) facilities in India, on 2022 February 1 and 2. In addition to H? emission, we found emission lines of He i in the optical spectrum of this star. By comparing our spectrum of the object with those from the literature we found that He i lines show variability. Using photometric studies we estimate that the star has an effective temperature of 20,000 K. Although HD 54786 is reported as a supergiant in previous studies, our analysis favors it to be evolving off the main sequence in the color-magnitude diagram. We could not detect any infrared excess, ruling out the possibility of IR emission from a dusty circumstellar disk. Our present study suggests that HD 54786 is a Be/X-ray binary system with a compact object companion, possibly a neutron star. 2022. The Author(s). Published by the American Astronomical Society.
creator: Bhattacharyya S.; Mathew B.; Ezhikode S.H.; Muneer S.; G. S.; G. M.; Arun R.; Anilkumar H.; Banerjee G.; Kumar S P.; Kartha S.S.; Paul K.T.; Velu C.
source: Astrophysical Journal Letters, Vol-933, No. 2
publisher: American Astronomical Society
date: 2022-01-01
rights: All Open Access; Gold Open Access; Green Open Access
relation: ISSN: 20418205
format: Online
language: English
type: Article
coverage: Bhattacharyya S., Department of Physics and Electronics, CHRIST (Deemed to Be University), Hosur Main Road, Bangalore, India; Mathew B., Department of Physics and Electronics, CHRIST (Deemed to Be University), Hosur Main Road, Bangalore, India; Ezhikode S.H., Department of Physics and Electronics, CHRIST (Deemed to Be University), Hosur Main Road, Bangalore, India; Muneer S., Indian Institute of Astrophysics, Koramangala, Bangalore, India; G. S., Indian Institute of Astrophysics, Koramangala, Bangalore, India; G. M., Indian Institute of Astrophysics, Koramangala, Bangalore, India; Arun R., Department of Physics and Electronics, CHRIST (Deemed to Be University), Hosur Main Road, Bangalore, India, Indian Institute of Astrophysics, Koramangala, Bangalore, India; Anilkumar H., Department of Physics and Electronics, CHRIST (Deemed to Be University), Hosur Main Road, Bangalore, India; Banerjee G., Department of Physics and Electronics, CHRIST (Deemed to Be University), Hosur Main Road, Bangalore, India; Kumar S P., Indian Institute of Astrophysics, Koramangala, Bangalore, India; Kartha S.S., Department of Physics and Electronics, CHRIST (Deemed to Be University), Hosur Main Road, Bangalore, India; Paul K.T., Department of Physics and Electronics, CHRIST (Deemed to Be University), Hosur Main Road, Bangalore, India; Velu C., Indian Institute of Astrophysics, Koramangala, Bangalore, India

The convective heat transfer analysis of the casson nanofluid jet flow under the influence of the movement of gyrotactic microorganisms
subject: Bioconvection; Casson nanofluid; Differential transform method; Gyrotactic microorganisms; Jet flow
description: Jet flows provide an effective mode of energy transfer or mass transfer in industrial applications. When compared to traditional cooling through convection, jet flows have high heat and mass transfer coefficients. Further, the devices equipped with jet flow provides efficient use of fluid and also offers enhanced heat and mass transfer rates. Hence in this study, the jet flow of Casson nanofluid containing gyrotactic microorganisms that stabilises the nanoparticle suspension is discussed. To control the fluid from outside external magnetic field is imposed. The model with these characteristics are useful in the appliances like coolants in automobiles, nuclear reactors, micro-manufacturing, metallurgical process etc. Such a model is created by employing PDE, which are then transformed into a system of ODE. The DTM is employed to obtain the solution to system of equations, and the results are interpreted using graphs. It is perceived that the velocity of the nanofluid flow is decreased because of the increased yield stress created by the greater values of the Casson parameter. As a result, the temperature profile is found to be increasing. Meanwhile, it is observed that for increased value of chemical reaction parameter diminishes the nanoparticle concentration. The motile density is found to decrease for increase in the Peclet number and the bioconvection Schmidt number. Further, the thermophoresis improves the temperature and concentration profile of the nanofluid. 2022 Indian Chemical Society
creator: Puneeth V.; Khan M.I.; Jameel M.; Geudri K.; Galal A.M.
source: Journal of the Indian Chemical Society, Vol-99, No. 9
publisher: Elsevier B.V.
date: 2022-01-01
rights: Restricted Access
relation: ISSN: 194522; CODEN: JICSA
format: Online
language: English
type: Article
coverage: Puneeth V., Department of Computational Science, School of Sciences, CHRIST(Deemed to be University), Ghaziabad, 201003, India; Khan M.I., Department of Mathematics, Faculty of Sciences, King Abdulaziz University, Jeddah, 21589, Saudi Arabia, Department of Mathematics and Statistics, Ripah International University I-14, Islamabad, 44000, Pakistan; Jameel M., Department of Civil Engineering, College of Engineering, King Khalid University, Asir, Abha, 61421, Saudi Arabia; Geudri K., Mechanical Engineering Department, College of Engineering and Islamic Architecture, Umm AlQura University, Makkah, 21955, Saudi Arabia; Galal A.M., Mechanical Engineering Department, College of Engineering, Prince Sattam Bin Abdulaziz University, Wadi Addawaser, 11991, Saudi Arabia, Production Engineering and Mechanical Design Department, Faculty of Engineering, Mansoura University, Mansoura, 35516, Egypt

Being socially responsible: How green self-identity and locus of control impact green purchasing intentions?
subject: Attribution theory; External environmental locus of control; Green self-identity; IPMA; PLS-SEM; Pro-environmental locus of control
description: This paper investigates the influence of green self-identity (GSI) and two attributes of locus of control, namely external environmental locus of control (ExLOC) and pro-environmental locus of control (PELOC), to predict perceived consumers effectiveness (PCE) on green purchase intentions (GPI) using attribution theory. For this study, data from 391 Indian consumers were analyzed using PLS-SEM via SMARTPLS version 3.2.9. Results show that GSI positively influences both ExLOC and PELOC. Furthermore, both aspects of locus of control are significant positive predictors of PCE and have partial mediation roles. The results not only imply comprehensively expound the process of green buying intentions of consumers through self-identity but also addresses the process of attribution. The study applied the Importance Performance Map Analysis (IPMA) to compare the relative importance and performance of three antecedents (i.e., ELOC, GSI, and PCE). The finding is of utmost importance for practitioners and public authorities to design more focused strategies to increase GPI among the masses to enhance the sales of green products. 2022 The Authors
creator: Sharma N.; Lal M.; Goel P.; Sharma A.; Rana N.P.
source: Journal of Cleaner Production, Vol-357
publisher: Elsevier Ltd
date: 2022-01-01
rights: Restricted Access
relation: ISSN: 9596526; CODEN: JCROE
format: Online
language: English
type: Article
coverage: Sharma N., School of Commerce, Christ (Deemed to be University), NCR, Delhi, India; Lal M., Department of Commerce, University of Delhi, India; Goel P., Department of Commerce, Shaheed Bhagat Singh College, University of Delhi, India; Sharma A., Chandragupt Institute of Management Patna, Bihar, Patna, 800001, India; Rana N.P., College of Business and Economics, Qatar University, P.O. Box 2713, Doha, Qatar

Assessing transmission excellence and flow detection based on Machine Learning
subject: Machine learning; Optical network; Packet switched optical network; Photonic switching; Scheduling algorithm
description: Excellence in transmission can be assessed in optical transport networks before providing any additional connections or upgrading the connections. Generally, the Physical Layer Model (PLM) is used to assess the transmission quality which has high probability in uncertainty and inaccuracy due to the circumstances of physical layer. The network efficiency is directly proportional to the margins. If the margins getting increases in the PLM, the efficiency of the network decreases. Maintaining the excellence in transmission is the biggest challenge when the margins getting increased. Other significant factors for excellence in transmission is scalable, minimum latency with maximum speed and energy efficient. Photonic switching is a hopeful solution for handling these challenges. Machine learning technique is proposed to assess the excellence of transmission and flow detection. ML-E and Precedence based scheduling algorithms are proposed for excellence of transmission and flow detection respectively. The proposed techniques justify variations, uncertainties in kits like fiber dilution, dispersion and optimizes PSON (packet switched optical network). Simulation results are demonstrated and the proposed work results indicates that it can outperform a benchmark in all aspects. 2022, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
creator: Suresh A.; Kishorekumar R.; Kumar M.S.; Elaiyaraja K.
source: Optical and Quantum Electronics, Vol-54, No. 8
publisher: Springer
date: 2022-01-01
rights: Restricted Access
relation: ISSN: 3068919; CODEN: OQELD
format: Online
language: English
type: Article
coverage: Suresh A., Department of Networking and Communications, School of Computing, College of Engineering and Technology, SRM Institute of Science and Technology, SRM Nagar, Kattankulathur, Chengalpattu, Tamil Nadu, Chennai, 603203, India; Kishorekumar R., Department of Electronics and Communication Engineering, School of Engineering and Technology, CHRIST University, Karnataka, Bangalore, 560074, India; Kumar M.S., Department of CSE, SRM Valliammai Engineering College, Tamil Nadu, Chennai, 603203, India; Elaiyaraja K., Tech Lead, Eagle Software Pvt. Ltd., Tamil Nadu, Chennai, 600006, India