The ongoing Coronavirus disease 2019 (COVID-19) pandemic has changed the working environment, occ... more The ongoing Coronavirus disease 2019 (COVID-19) pandemic has changed the working environment, occupation, and living style of billions of people around the world. The severest impact of the coronavirus is on migrant communities; hence, it is relevant to assess the economic impact and mental status of the Indian migrants. This study is quantitative in nature and based on a sample survey of 180 migrant workers. Descriptive statistics, chi-square test, dependent sample t-test, and Pearson’s correlation coefficient were utilized to analyze the surveyed data. The findings of the study reveal, through the working experience of the migrants, that new international migration has reduced due to lockdown and international travel restrictions. It was also reported that the majority of the migrants worked less than the normal working hours during the lockdown, causing a reduction of salary and remittances. Chi-square test confirms that the perceptions of migrants towards the COVID-19 management...
The current study investigates the intraday dynamics of futures and spot markets in India. By ana... more The current study investigates the intraday dynamics of futures and spot markets in India. By analyzing one-minute data of Nifty 50 and the associated futures index, the study finds that both the markets are cointegrated. The results of the VECM reveal that any disequilibrium between the spot and futures market is restored by the spot market. Granger causality tests reveal that the spot and futures markets have a bidirectional causal relationship. Common factor weights and Hasbrouck’s information share (IS) reveal the greater role of the futures market in price discovery. Gonzalo and Granger's common factor model indicates that the permanent factor is made up of futures series only. Using the BEK-GARCH model, we found two-way volatility spillovers between the spot and futures markets. The futures market is found to have a greater impact in terms of volatility spillovers also. The findings of our research are relevant to investors, money managers, traders, and policymakers.
Online payment is a trend that is gaining momentum globally. As a result of digitisation, the adv... more Online payment is a trend that is gaining momentum globally. As a result of digitisation, the advent of online banking has increasingly made its way into the modern marketplace, serving not only customers but also corporations. The primary data were gathered from 287 participants. Stratified random sampling was used. Structure Equation Modelling (SEM), reliability, convergent, discriminate validity and model fitness were achieved through SmartPLS 3 (Christian M. Ringle, Germany). The findings reveal that efficiency, reliability and service quality have a significant direct effect on customer satisfaction and customer retention. It also shows the significant effect of efficiency, reliability and service quality when using customer satisfaction as a mediator for customer retention. It is possible that the data gathered may be valuable for both banks and enterprises interested in entering the Indian market. This research also specifies four main components of E-banking: efficiency, rel...
An integrated polymer-based magnetohydrodynamic (MHD) pump that can actuate saline fluids in clos... more An integrated polymer-based magnetohydrodynamic (MHD) pump that can actuate saline fluids in closed-channel devices is presented. MHD pumps are attractive for lab-on-chip applications, due to their ability to provide high propulsive force without any moving parts. Unlike other MHD devices, a high level of integration is demonstrated by incorporating both laser-induced graphene (LIG) electrodes as well as a NdFeB magnetic-flux source in the NdFeB-polydimethylsiloxane permanent magnetic composite substrate. The effects of transferring the LIG film from polyimide to the magnetic composite substrate were studied. Operation of the integrated magneto hydrodynamic pump without disruptive bubbles was achieved. In the studied case, the pump produces a flow rate of 28.1 µL/min. while consuming ~1 mW power.
The operations of many industries, such as banking, insurance, energy, healthcare, and retail, ha... more The operations of many industries, such as banking, insurance, energy, healthcare, and retail, have been improved and transformed by the application of artificial intelligence. The education sector is the particular one which has more potential for artificial intelligence and its applications. Universities and colleges are currently facing a number of challenges, including high rates of dropouts and student disengagement in their classes, as well as the failure of traditional learning techniques in the face of ongoing outbreaks. Major issues in the educational sector can be resolved by the proper application of artificial intelligence and big data, which can facilitate learner-centred approaches as per the needs of today’s era. This can be better described as a personalised learning approach, in which the needs of each and every student can be considered and education can be provided uniquely for them. In this way, the educator can provide a better learning experience according to t...
This study investigates how electronic work of mouth (eWOM) mediates the relationship between mar... more This study investigates how electronic work of mouth (eWOM) mediates the relationship between marketing relations and brand resonance. Based on the information obtained from 473 customers using an online questionnaire, this study analyses the relationship between eWOM, relationship marketing practices and the brand resonance of lifestyle products in an Indian context. The results from the multiple regression analysis indicate that the proposed hypotheses are valid, that relationship marketing significantly affects brand resonance, and that eWOM significantly mediates the relationship between the relationship marketing and brand resonance of branded apparel. The findings suggest that personalized attention and tangible rewards are effective relationship marketing strategies, and that these relationship-marketing practices—in association with eWOM—build up the strong brand resonance of branded apparel. The present study recommends that marketers should place emphasis on effective onli...
International Journal of Environmental Research and Public Health, 2021
Online examinations, commonly referred to as e-exams (electronic examinations), underwent a consi... more Online examinations, commonly referred to as e-exams (electronic examinations), underwent a considerable progression, getting adapted ubiquitously among higher education institutions worldwide. Their preferment was rapid due to the emergence of the COVID-19 pandemic. The process of conducting exams online is being opted as the appropriate way of assessment, ensuring the students’ safety and well-being. According to Warts et al., this form of examination has been pretty effective in the past when blended with the conventional assessment. However, at present, implemented as the singular way of assessment, e-exams have shown a more significant promise in being beneficial to the learners. As a matter of fact, a comprehensive analysis on understanding the learners’ perception towards the e-exams was not done earlier, particularly in the developing nations. Thus, it was pertinent to examine the pre-requisites of e-exams to promote it as a useful tool for the smooth conduct of exams in the...
Due to the COVID-19 pandemic, the worldwide education system has been severely affected, followin... more Due to the COVID-19 pandemic, the worldwide education system has been severely affected, following the shutdown of schools and colleges/universities since March 2020 in order to prevent the spread of the virus. Conventional classrooms shifted to online classrooms which profoundly impacted teachers’ and students’ closed interaction, making a paradigm shift in the teaching-learning process, inter alia. Against such a backdrop, it is relevant to analyze the perception of students and the challenges of online classes during this ongoing COVID-19 outbreak. The present study is based on a quantitative and sample survey approach. The respondent sample of 385 secondary school students from grades 8 to 12 in Delhi have been collected through a Google Form Questionnaire. The study was conducted in the months of January and February 2021. Statistical techniques, such as Descriptive Statistics, Chi-Square Test, Factor Analysis, Reliability Test and Logistic Regression, were used for analyzing t...
The use of artificial intelligence (AI) is increasing in various sectors of photovoltaic (PV) sys... more The use of artificial intelligence (AI) is increasing in various sectors of photovoltaic (PV) systems, due to the increasing computational power, tools and data generation. The currently employed methods for various functions of the solar PV industry related to design, forecasting, control, and maintenance have been found to deliver relatively inaccurate results. Further, the use of AI to perform these tasks achieved a higher degree of accuracy and precision and is now a highly interesting topic. In this context, this paper aims to investigate how AI techniques impact the PV value chain. The investigation consists of mapping the currently available AI technologies, identifying possible future uses of AI, and also quantifying their advantages and disadvantages in regard to the conventional mechanisms.
The educational system across the world has immensely been affected due to outbreak of COVID-19; ... more The educational system across the world has immensely been affected due to outbreak of COVID-19; it forced the shut down of educational institutions, which adversely affected student fraternity across the globe. Due to its contagious nature, COVID-19 demanded containment and enforced isolation that tremendously affected personal interaction of teachers and students. In the absence of traditional classroom teaching and one-to-one interaction, computer-based learning has emerged as closest substitute for off-line teaching. Against such a backdrop, it is pertinent to examine the students’ perception and readiness about online-learning system adopted at the university level during the ongoing COVID-19 pandemic. For the present study, the quantitative approach has been adopted and responses from 184 university students of National Capital Territory (NCT) of Delhi, India namely Delhi University, Jamia Millia Islamia (Central University) and Guru Gobind Singh Indraprastha University are co...
This paper develops a model-based data driven algorithm for fault classification in proton exchan... more This paper develops a model-based data driven algorithm for fault classification in proton exchange membrane fuel cells (PEMFCs). The proposed approach overcomes the drawbacks of voltage and current density assumptions in conventional model-based fault identification methods and data limitations in existing data driven approaches. This is achieved by developing a 3D model of fuel cells (FC) based on semi empirical model, analytical representation of electrochemical model, thermal model, and impedance model. The developed model is simulated for membrane drying and flooding faults in PEMFC and their effects are identified for the action of varying temperature, pressure, and relative humidity. The ohmic, concentration, activation and cell voltage losses for the simulated faults are observed and processed with wavelet transforms for feature extraction. Furthermore, the support vector machine learning algorithm is adapted to develop the proposed fault classification approach. The perform...
Electric vehicles (EVs) are envisaged to be the future transportation medium, and demonstrate ene... more Electric vehicles (EVs) are envisaged to be the future transportation medium, and demonstrate energy efficiency levels much higher than conventional gasoline or diesel-based vehicles. However, the sustainability of EVs is only justified if the electricity used to charge these EVs is availed from a sustainable source of energy and not from any fossil fuel or carbon generating source. In this paper, the challenges of the EV charging stations are discussed while highlighting the growing use of distributed generators in the modern electrical grid system. The benefits of the adoption of photovoltaic (PV) sources along with battery storage devices are studied. A multiport converter is proposed for integrating the PV, charging docks, and energy storage device (ESD) with the grid system. In order to control the bidirectional flow between the generating sources and the loads, an intelligent energy management system is proposed by adapting particle swarm optimization for efficient switching b...
Field experiments were conducted at the research farm of Bangladesh Agricultural Research Institu... more Field experiments were conducted at the research farm of Bangladesh Agricultural Research Institute, Joydebpur during kharif-1 (March to July) seasons of 2005 and 2006 to identify the critical period of crop-weed competition for Indian spinach. Major weed species were Paspalurn commersoni, Echinochlaa crusgalli. Lie nv/nc india. Cyanotis axillaris and Cyperus rotundus. The lowest weed dry matter was 76.3 g m-2 in 2005 and l01.60 g m-2 in 2006 from the plots weeded up to 40 days after transplanting (DAT). The highest yields were obtained (74.82 t ha in 2005 and 48.48 t ha in 2006) from the weed free plots. The fresh yield of Indian spinach did not vary among no weeding upto 20, 30 and 40 DAT in 2006. But weeded plot upto 30 and 40 DAT produced identical yield in 2005. Maximum BCR (4.52) was obtained from weeded plots upto 30 DAT in 2005 but BCR (2.60) was same from weeded upto 30 and 40 DA F in 2006. On an average, highest BCR (3.55) was recorded from weeding upto 30 DAT. Results rev...
The Ghadar movement had a significant, if numerically small, Muslim component in its membership. ... more The Ghadar movement had a significant, if numerically small, Muslim component in its membership. Maulana Barakatullah ‘Bhopali’ stands out among them for his early association with the movement; for his long activist sojourns across the globe; and for attempting to synthesize diverse anti-imperialist trends in his primary quest of the liberation of India from colonial rule. This paper charts the ideological evolution of Barakatullah and how he, a trained orthodox Islamic scholar, was able to fuse different ideologies (Pan-Islamism, Pan-Asianism, Indian Nationalism, and Communism) in his anti-imperialist struggle. Through an examination of his life and writings, an attempt will be made to determine the internal logic behind his eclectic thought. A comparison will also be made with his contemporaries – especially with Maulana ‘Ubayd Allah Sindhi, a fellow Muslim revolutionary, who was not as prominent as Barakatullah (in the Ghadarite movement), but whose theoretical insights in revolutionary ecumenism are no less relevant.
The ongoing Coronavirus disease 2019 (COVID-19) pandemic has changed the working environment, occ... more The ongoing Coronavirus disease 2019 (COVID-19) pandemic has changed the working environment, occupation, and living style of billions of people around the world. The severest impact of the coronavirus is on migrant communities; hence, it is relevant to assess the economic impact and mental status of the Indian migrants. This study is quantitative in nature and based on a sample survey of 180 migrant workers. Descriptive statistics, chi-square test, dependent sample t-test, and Pearson’s correlation coefficient were utilized to analyze the surveyed data. The findings of the study reveal, through the working experience of the migrants, that new international migration has reduced due to lockdown and international travel restrictions. It was also reported that the majority of the migrants worked less than the normal working hours during the lockdown, causing a reduction of salary and remittances. Chi-square test confirms that the perceptions of migrants towards the COVID-19 management...
The current study investigates the intraday dynamics of futures and spot markets in India. By ana... more The current study investigates the intraday dynamics of futures and spot markets in India. By analyzing one-minute data of Nifty 50 and the associated futures index, the study finds that both the markets are cointegrated. The results of the VECM reveal that any disequilibrium between the spot and futures market is restored by the spot market. Granger causality tests reveal that the spot and futures markets have a bidirectional causal relationship. Common factor weights and Hasbrouck’s information share (IS) reveal the greater role of the futures market in price discovery. Gonzalo and Granger's common factor model indicates that the permanent factor is made up of futures series only. Using the BEK-GARCH model, we found two-way volatility spillovers between the spot and futures markets. The futures market is found to have a greater impact in terms of volatility spillovers also. The findings of our research are relevant to investors, money managers, traders, and policymakers.
Online payment is a trend that is gaining momentum globally. As a result of digitisation, the adv... more Online payment is a trend that is gaining momentum globally. As a result of digitisation, the advent of online banking has increasingly made its way into the modern marketplace, serving not only customers but also corporations. The primary data were gathered from 287 participants. Stratified random sampling was used. Structure Equation Modelling (SEM), reliability, convergent, discriminate validity and model fitness were achieved through SmartPLS 3 (Christian M. Ringle, Germany). The findings reveal that efficiency, reliability and service quality have a significant direct effect on customer satisfaction and customer retention. It also shows the significant effect of efficiency, reliability and service quality when using customer satisfaction as a mediator for customer retention. It is possible that the data gathered may be valuable for both banks and enterprises interested in entering the Indian market. This research also specifies four main components of E-banking: efficiency, rel...
An integrated polymer-based magnetohydrodynamic (MHD) pump that can actuate saline fluids in clos... more An integrated polymer-based magnetohydrodynamic (MHD) pump that can actuate saline fluids in closed-channel devices is presented. MHD pumps are attractive for lab-on-chip applications, due to their ability to provide high propulsive force without any moving parts. Unlike other MHD devices, a high level of integration is demonstrated by incorporating both laser-induced graphene (LIG) electrodes as well as a NdFeB magnetic-flux source in the NdFeB-polydimethylsiloxane permanent magnetic composite substrate. The effects of transferring the LIG film from polyimide to the magnetic composite substrate were studied. Operation of the integrated magneto hydrodynamic pump without disruptive bubbles was achieved. In the studied case, the pump produces a flow rate of 28.1 µL/min. while consuming ~1 mW power.
The operations of many industries, such as banking, insurance, energy, healthcare, and retail, ha... more The operations of many industries, such as banking, insurance, energy, healthcare, and retail, have been improved and transformed by the application of artificial intelligence. The education sector is the particular one which has more potential for artificial intelligence and its applications. Universities and colleges are currently facing a number of challenges, including high rates of dropouts and student disengagement in their classes, as well as the failure of traditional learning techniques in the face of ongoing outbreaks. Major issues in the educational sector can be resolved by the proper application of artificial intelligence and big data, which can facilitate learner-centred approaches as per the needs of today’s era. This can be better described as a personalised learning approach, in which the needs of each and every student can be considered and education can be provided uniquely for them. In this way, the educator can provide a better learning experience according to t...
This study investigates how electronic work of mouth (eWOM) mediates the relationship between mar... more This study investigates how electronic work of mouth (eWOM) mediates the relationship between marketing relations and brand resonance. Based on the information obtained from 473 customers using an online questionnaire, this study analyses the relationship between eWOM, relationship marketing practices and the brand resonance of lifestyle products in an Indian context. The results from the multiple regression analysis indicate that the proposed hypotheses are valid, that relationship marketing significantly affects brand resonance, and that eWOM significantly mediates the relationship between the relationship marketing and brand resonance of branded apparel. The findings suggest that personalized attention and tangible rewards are effective relationship marketing strategies, and that these relationship-marketing practices—in association with eWOM—build up the strong brand resonance of branded apparel. The present study recommends that marketers should place emphasis on effective onli...
International Journal of Environmental Research and Public Health, 2021
Online examinations, commonly referred to as e-exams (electronic examinations), underwent a consi... more Online examinations, commonly referred to as e-exams (electronic examinations), underwent a considerable progression, getting adapted ubiquitously among higher education institutions worldwide. Their preferment was rapid due to the emergence of the COVID-19 pandemic. The process of conducting exams online is being opted as the appropriate way of assessment, ensuring the students’ safety and well-being. According to Warts et al., this form of examination has been pretty effective in the past when blended with the conventional assessment. However, at present, implemented as the singular way of assessment, e-exams have shown a more significant promise in being beneficial to the learners. As a matter of fact, a comprehensive analysis on understanding the learners’ perception towards the e-exams was not done earlier, particularly in the developing nations. Thus, it was pertinent to examine the pre-requisites of e-exams to promote it as a useful tool for the smooth conduct of exams in the...
Due to the COVID-19 pandemic, the worldwide education system has been severely affected, followin... more Due to the COVID-19 pandemic, the worldwide education system has been severely affected, following the shutdown of schools and colleges/universities since March 2020 in order to prevent the spread of the virus. Conventional classrooms shifted to online classrooms which profoundly impacted teachers’ and students’ closed interaction, making a paradigm shift in the teaching-learning process, inter alia. Against such a backdrop, it is relevant to analyze the perception of students and the challenges of online classes during this ongoing COVID-19 outbreak. The present study is based on a quantitative and sample survey approach. The respondent sample of 385 secondary school students from grades 8 to 12 in Delhi have been collected through a Google Form Questionnaire. The study was conducted in the months of January and February 2021. Statistical techniques, such as Descriptive Statistics, Chi-Square Test, Factor Analysis, Reliability Test and Logistic Regression, were used for analyzing t...
The use of artificial intelligence (AI) is increasing in various sectors of photovoltaic (PV) sys... more The use of artificial intelligence (AI) is increasing in various sectors of photovoltaic (PV) systems, due to the increasing computational power, tools and data generation. The currently employed methods for various functions of the solar PV industry related to design, forecasting, control, and maintenance have been found to deliver relatively inaccurate results. Further, the use of AI to perform these tasks achieved a higher degree of accuracy and precision and is now a highly interesting topic. In this context, this paper aims to investigate how AI techniques impact the PV value chain. The investigation consists of mapping the currently available AI technologies, identifying possible future uses of AI, and also quantifying their advantages and disadvantages in regard to the conventional mechanisms.
The educational system across the world has immensely been affected due to outbreak of COVID-19; ... more The educational system across the world has immensely been affected due to outbreak of COVID-19; it forced the shut down of educational institutions, which adversely affected student fraternity across the globe. Due to its contagious nature, COVID-19 demanded containment and enforced isolation that tremendously affected personal interaction of teachers and students. In the absence of traditional classroom teaching and one-to-one interaction, computer-based learning has emerged as closest substitute for off-line teaching. Against such a backdrop, it is pertinent to examine the students’ perception and readiness about online-learning system adopted at the university level during the ongoing COVID-19 pandemic. For the present study, the quantitative approach has been adopted and responses from 184 university students of National Capital Territory (NCT) of Delhi, India namely Delhi University, Jamia Millia Islamia (Central University) and Guru Gobind Singh Indraprastha University are co...
This paper develops a model-based data driven algorithm for fault classification in proton exchan... more This paper develops a model-based data driven algorithm for fault classification in proton exchange membrane fuel cells (PEMFCs). The proposed approach overcomes the drawbacks of voltage and current density assumptions in conventional model-based fault identification methods and data limitations in existing data driven approaches. This is achieved by developing a 3D model of fuel cells (FC) based on semi empirical model, analytical representation of electrochemical model, thermal model, and impedance model. The developed model is simulated for membrane drying and flooding faults in PEMFC and their effects are identified for the action of varying temperature, pressure, and relative humidity. The ohmic, concentration, activation and cell voltage losses for the simulated faults are observed and processed with wavelet transforms for feature extraction. Furthermore, the support vector machine learning algorithm is adapted to develop the proposed fault classification approach. The perform...
Electric vehicles (EVs) are envisaged to be the future transportation medium, and demonstrate ene... more Electric vehicles (EVs) are envisaged to be the future transportation medium, and demonstrate energy efficiency levels much higher than conventional gasoline or diesel-based vehicles. However, the sustainability of EVs is only justified if the electricity used to charge these EVs is availed from a sustainable source of energy and not from any fossil fuel or carbon generating source. In this paper, the challenges of the EV charging stations are discussed while highlighting the growing use of distributed generators in the modern electrical grid system. The benefits of the adoption of photovoltaic (PV) sources along with battery storage devices are studied. A multiport converter is proposed for integrating the PV, charging docks, and energy storage device (ESD) with the grid system. In order to control the bidirectional flow between the generating sources and the loads, an intelligent energy management system is proposed by adapting particle swarm optimization for efficient switching b...
Field experiments were conducted at the research farm of Bangladesh Agricultural Research Institu... more Field experiments were conducted at the research farm of Bangladesh Agricultural Research Institute, Joydebpur during kharif-1 (March to July) seasons of 2005 and 2006 to identify the critical period of crop-weed competition for Indian spinach. Major weed species were Paspalurn commersoni, Echinochlaa crusgalli. Lie nv/nc india. Cyanotis axillaris and Cyperus rotundus. The lowest weed dry matter was 76.3 g m-2 in 2005 and l01.60 g m-2 in 2006 from the plots weeded up to 40 days after transplanting (DAT). The highest yields were obtained (74.82 t ha in 2005 and 48.48 t ha in 2006) from the weed free plots. The fresh yield of Indian spinach did not vary among no weeding upto 20, 30 and 40 DAT in 2006. But weeded plot upto 30 and 40 DAT produced identical yield in 2005. Maximum BCR (4.52) was obtained from weeded plots upto 30 DAT in 2005 but BCR (2.60) was same from weeded upto 30 and 40 DA F in 2006. On an average, highest BCR (3.55) was recorded from weeding upto 30 DAT. Results rev...
The Ghadar movement had a significant, if numerically small, Muslim component in its membership. ... more The Ghadar movement had a significant, if numerically small, Muslim component in its membership. Maulana Barakatullah ‘Bhopali’ stands out among them for his early association with the movement; for his long activist sojourns across the globe; and for attempting to synthesize diverse anti-imperialist trends in his primary quest of the liberation of India from colonial rule. This paper charts the ideological evolution of Barakatullah and how he, a trained orthodox Islamic scholar, was able to fuse different ideologies (Pan-Islamism, Pan-Asianism, Indian Nationalism, and Communism) in his anti-imperialist struggle. Through an examination of his life and writings, an attempt will be made to determine the internal logic behind his eclectic thought. A comparison will also be made with his contemporaries – especially with Maulana ‘Ubayd Allah Sindhi, a fellow Muslim revolutionary, who was not as prominent as Barakatullah (in the Ghadarite movement), but whose theoretical insights in revolutionary ecumenism are no less relevant.
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