Faculty Publications
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Publications by NITK Faculty
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Item Handheld electrochemical workstation for serum albumin measurement(Institute of Electrical and Electronics Engineers Inc., 2016) Hebbar, S.; Kumar, V.; Bhat, M.S.; Bhat, N.This paper presents a novel handheld electrochemical workstation for serum albumin measurement. The system consists of a multi-path potentiostat module which performs electrochemical measurements on disposable test strip. The strip provides a port for applying blood sample. The test strip consists of 3 electrochemical cells for redundancy and parallel testing. The 3 sets of 3 electrodes (Working, Reference and Counter electrodes) are screen printed on a Polyethylene Terephthalate (PET) substrate. The system provides the unique capability of performing Cyclic Voltammetry and Chrono Amperometry measurements in three parallel paths. The system is very generic and flexible, with user defined inputs for voltage, sweep rate and time through 5 inch capacitive touch screen. The experimental results can be stored on micro SD card and the data is accessible with USB or Bluetooth interface. This paper reports an extensive characterization of system through several tests conducted on standard redox solution. The system is then validated for human serum albumin measurement, using clinical samples. This is the first ever point of care handheld diagnostic device in the world for human serum albumin measurement. © 2016 IEEE.Item Smart handheld platform for electrochemical bio sensors(Institute of Electrical and Electronics Engineers Inc., 2017) Hebbar, S.; Kumar, V.; Bhat, M.S.; Bhat, N.In this paper we present a smart handheld system for point of care biosensors. The system consists of a novel multi-path potentiostat module which performs electrochemical measurements on disposable test strip. The strip provides a port for applying bio-sample such as blood or urine. The analyte port on the disposable strip is designed with 3 sets of 3 electrodes (Working, Reference and Counter electrodes) screen printed on a Polyethylene Terephthlate (PET) substrate. The system provides the unique capability of performing Cyclic Voltametry and Chrono Amperometry measurements in three parallel paths, facilitating simultaneous measurement of three bio-analytes. The system is very generic and flexible, with user defined inputs for voltage, sweep rate and time through 5 inch capacitive touch screen. The experimental results can be stored on micro SD card and the data is accessible with USB or Bluetooth interface. © 2016 IEEE.Item Social media influence and mobile government adoption: A conceptual framework and its validation(IGI Global, 2019) Hebbar, S.; Kiran, K.B.The study focuses on developing a mobile government (MG) adoption framework with a key consideration on social media (SM) influence. As social media is now becoming a prominent channel for various marketing activities knowing its impact on MG adoption is crucial. Further, as MG is constantly evolving, a deeper understanding on the adoption behaviour of the citizens is quintessential for strategizing its implementation. Thus, a detailed review of the articles on citizen’s perspective on MG adoption and social media, was performed. It was found that the integration of theories like DOI and URT, which are critical during the evolving stages of MG adoption is significant. The other key contribution is the consideration of social media and its impact on MG adoption. Further, the factors such as awareness, social influence, and facilitating condition were also found to be very crucial. The SM-MG adoption framework developed integrating the theories like DOI, URT along with Social media is validated using a Structural Equation Modelling and results of which are discussed in detail. © © 2019, IGI Global.Item A bibliometric analysis on mobile government research(Inderscience Publishers, 2021) Hebbar, S.; Kiran, K.B.Mobile government (MG) being a critical subset of e-government system has gained a lot of prominence among the practitioners and researchers. With its complex nature, MG has not achieved the desired success rate, and has therefore led to numerous research studies. Thus, with the diverse literatures on MG, it is critical to take stock of the existing literature and systematically categorise all documents. This will assist the aspiring researchers in understanding the topic, categorising and systematically deriving the objectives for their study. Thus, this study performs a bibliometric analysis (co-citation analysis and bibliometric coupling analysis) using Scopus database on MG research. The resulting clusters from these analyses are then used to identify the seminal works, themes in MG research and to determine research gaps for directing future studies. Overall, this study gives clear picture of MG research and also directs future research that contributes significantly to the field. © © 2021 Inderscience Enterprises Ltd.Item Do Social Media and e-WOM Influence M-Government Services? A Citizen Perspective From India(IGI Global, 2022) Hebbar, S.; Kiran, K.B.In Web 4.0 technologies, social media (SM) has emerged as a prominent tool for the government to interact and engage with citizens. It is also an effective channel for providing government services. However, for effective implementation and its success, it is critical to understand the citizens' perceptions towards the government's use of SM and its impact on mobile government (MG) adoption. Consequently, the study focuses on assessing the impact of SM influence and electronic word of mouth (e-WOM) on MG service parameters such as MG awareness, MG transparency, and MG trust. The results of structural equation modelling revealed the significance of e-WOM on improving MG awareness and trust and SM influence. Further, SM influence had a direct impact only on MG transparency. However, results revealed the importance of SM influence and MG transparency as a mediator for MG trust. Gender and age as moderators are investigated and discussed in detail. © © 2022, IGI Global.Item Leverage of weave pattern and composite thickness on dynamic mechanical analysis, water absorption and flammability response of bamboo fabric/epoxy composites(Elsevier Ltd, 2023) Kanaginahal, G.M.; Hebbar, S.; Shahapurkar, K.; Alamir, M.A.; Tirth, V.; AlArifi, I.M.; Sillanpӓӓ, M.; Murthy, H.C.A.Spar caps, which cover 50% of the cost of windmill blades, were made of unidirectional and biaxial glass/carbon reinforcements of 600 gsm with thicknesses ranging from 100 to 150 mm for blades 70–80 m long. The significance of this study was to utilize an economical biodegradable material i.e bamboo fabric of 125 gsm to fabricate a lightweight composite and study its behavior for spar caps applications. The aim of this research was to investigate the effect of weave pattern and composite size at coupon level under thermal, dynamic, water absorption, and flammability conditions. Composites comprising 125 gsm plain and twill weave bamboo as reinforcements/AI 1041 Phenalkamine bio-based hardener with epoxy B-11 as matrix were tested. Thermo-Gravimetric Analysis revealed that the weave pattern and composite thickness had an effect on the rate of weight loss and sustenance until 450 °C. The pattern had an effect on the glass transition temperature, as seen by Differential Scanning Calorimetry. The weave pattern and size thickness had an effect on energy storage and dissipation, displaying the damping behavior in DMA. The weave pattern and size had an effect on the rate of water absorption, which saturated after a few hours. The wettability and thickness of composites hampered the burning rate, with 5.4 mm thickness resulting in a 30% decrease. © 2023Item Social media integrated mobile government adoption model: investigating adoption behaviour in Karnataka's smart cities(Inderscience Publishers, 2024) Hebbar, S.; Kiran, K.B.Digital transformation like m-government and social media (SM) plays an ornamental role in boosting government services and supports smart city mission. However, the public's dissatisfaction with government's use of SM and lower adoption of m-government, necessitates more research into citizens' perspective on these. Hence, the study integrates diffusion of innovation and uncertainty reduction theories with SM-influence and few external variables to analyse people's usage-intention in Karnataka's smart cities. The questionnaire survey yielded 1,444 citizen responses, which were statistically tested using PLS-SEM. The factors relative advantage, compatibility, facilitating condition, and trust were proved significant. Also, the importance of being aware of specific aspects like relative advantage and compatibility (mediators) proved vital. Information quality and transparency were found critical in enhancing trust and thereby impacting usage-intention. Finally, SM is proven significant in strengthening trust, transparency, social influence, image and awareness. The discussions and research implications are expanded upon in this paper. © 2024 Inderscience Enterprises Ltd.Item Contextualizing mGov in the digital age: a moderated model of mGov adoption using eGov experience and social media attitude(Springer Science and Business Media B.V., 2025) Hebbar, S.; Kiran, K.B.; Pai, R.R.Social media has become an essential component of m-government services. However, in order for these services to be implemented and adopted successfully, the government must first understand citizens’ perceptions toward the use of social media (SM Attitude). As a result, the study attempted to investigate the influence of predictors of m-government adoption, as well as the moderating role of SM attitude toward government use of this platform and prior electronic government experience on the adoption of m-government services. For this purpose, primary data is gathered using a questionnaire, with a total of 1101 responses collected and then analyzed using the Covariance Based Structural Equation Modelling technique. The findings demonstrated the importance of predictors such as relative advantage, compatibility, image, social influence, and trust in predicting behavioral intention to use m-government services. Furthermore, the moderation analysis revealed the presence of differences in perception among individuals with stronger and weaker social media attitudes on the variables social influence and image, and its relationship with m-government adoption. © The Author(s) 2025.