Jaskirat Singh - Academia.edu (original) (raw)

Papers by Jaskirat Singh

Research paper thumbnail of Cognitive remediation and schizophrenia: Effects on brain complexity

Research paper thumbnail of Driving Style Recognition System Using Smartphone Sensors Based on Fuzzy Logic

Computers, Materials & Continua

Every 24 seconds, someone dies on the road due to road accidents and it is the 8th leading cause ... more Every 24 seconds, someone dies on the road due to road accidents and it is the 8th leading cause of death and the first among children aged 15-29 years. 1.35 million people globally die every year due to road traffic crashes. An additional 20-50 million suffer from non-fatal injuries, often resulting in longterm disabilities. This costs around 3% of Gross Domestic Product to most countries, and it is a considerable economic loss. The governments have taken various measures such as better road infrastructures and strict enforcement of motor-vehicle laws to reduce these accidents. However, there is still no remarkable reduction in the number of accidents. To ensure driver safety and achieve vision of zero accidents, there is a great need to monitor drivers' driving styles. Most of the existing driving behavior monitoring solutions are based on expensive hardware sensors. As most people are using smartphones in the modern era, a system based on mobile application is proposed, which can reduce the cost for developing intelligent transport systems (ITS) to a large extent. In this paper, we utilize the accelerometer sensor data and the global positioning system (GPS) sensor deployed in smartphones to recognize driving and speeding events. A driving style recognition system based on fuzzy logic is designed to classify different driving styles and control reckless driving by taking the longitudinal/lateral acceleration and speed as input parameters. Thus, the proposed system uses fuzzy logic rather than taking the crisp values of the sensors. Results indicate that the proposed system can classify reckless driving based on fuzzy logic and, therefore, reduce the number of accidents.

Research paper thumbnail of Efficacy of Cognitive Training Program Given to Patients with Schizophrenia Using Computer Tablets: a Preliminary Study

International Journal of Cognitive Therapy

Research paper thumbnail of Analysis of Stimuli Discrimination in Indian Patients with Chronic Schizophrenia

Event-Related Potentials (ERPs) components are widely studied to understand brain response associ... more Event-Related Potentials (ERPs) components are widely studied to understand brain response associated with cognitive processes in terms of amplitude, latency, and brain topography. Schizophrenia is a psychiatric illness which is characterized by reduced amplitude and increased latency of P300 ERP component. In this work, we have analyzed the attributes of P300 component involved during discrimination of visual stimuli (frequent, infrequent, and rare) at midline frontal and parietal sites in 14 schizophrenic patients who were receiving remediation in psychiatric setup for a long time. The key findings include increase in P300 amplitude when infrequent and rare stimuli were presented which reflected better contribution of attentional resources toward discrimination of stimuli. The P300 latency was found to be increased at same measurement sites for standards and rares for which the responses have to be ignored. The latencies were reduced in the case of infrequent stimuli (targets) whi...

Research paper thumbnail of The Impact of COVID-19 Pandemic on Different Sectors of the Indian Economy: A Descriptive Study

International Journal of Economics and Financial Issues, 2020

COVID-19 is changing the world we live in for the worst, and almost all parts of the world are st... more COVID-19 is changing the world we live in for the worst, and almost all parts of the world are stuck with hung economies and people's lockdown in their homes. This pandemic is not only taking a toll out of health care systems and peoples' lives but also its impacting world economies and resulting in job losses, business disruptions and making us head towards one of the worst times ever for people on earth. Almost, all the industries are undergoing massive declines in their businesses, and the impact is that much gigantic of this pandemic, that they are projecting worse times ahead. This paper focuses on different industries, which are most affected by the pandemic and how this results in job losses and the world economy.

Research paper thumbnail of A Meta Search Approach to Find Similarity between Web Pages Using Different Similarity Measures

Communications in Computer and Information Science, 2011

Page 1. S. Unnikrishnan, S. Surve, and D. Bhoir (Eds.): ICAC3 2011, CCIS 125, pp. 150–160, 2011. ... more Page 1. S. Unnikrishnan, S. Surve, and D. Bhoir (Eds.): ICAC3 2011, CCIS 125, pp. 150–160, 2011. © Springer-Verlag Berlin Heidelberg 2011 ... 70–78 (April 2009) 22. Simmetrics, Open Source API for text similarity Measurement, http://www.dcs.shef.ac.uk/-sam/simmetrics.html

Research paper thumbnail of Tunable synthesis of indium oxide octahedra, nanowires and tubular nanoarrow structures under oxidizing and reducing ambients

Nanotechnology, 2009

We report the effect of oxidizing and reducing ambients on the growth of indium oxide (IO) nanost... more We report the effect of oxidizing and reducing ambients on the growth of indium oxide (IO) nanostructures in the vapor phase evaporation method. Our results show that the oxidizing reagent, water, results in the growth of IO nanowires and preserves the In/O stoichiometry throughout the length of the nanowires. The reducing reagent, ethanol, makes the growth environment indium rich, resulting in the growth of indium-filled IO tubular nanoarrow structures. The growth of solid IO nanowires is attributed to a vapor-liquid-solid mechanism, whereas for indium-filled tubular nanoarrow structures a modified bottom-vapor-solid growth mechanism is proposed. The tunable synthesis of IO nanostructures in different morphologies with correction of their stoichiometry may have potential applications in future nanodevices.

Research paper thumbnail of Congestion-aware topology optimization of structured power/ground networks

IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, 2005

This paper presents an efficient method for optimizing the design of power/ground (P/G) networks ... more This paper presents an efficient method for optimizing the design of power/ground (P/G) networks by using locally regular, globally irregular grids. The procedure divides the power grid chip area into rectangular sub-grids or tiles. Treating the entire power grid to be composed of many tiles connected to each other enables the use of a hierarchical circuit analysis approach to identify the tiles containing the nodes having the greatest drops. Starting from an initial equal number of wires in each of the rectangular tiles, wires are added in the tiles using an iterative sensitivity based optimizer. A novel and efficient table lookup scheme is employed to provide gradient information to the optimizer. Experimental results on test circuits of practical chip sizes show that the proposed P/G network topology after optimization saves 16% to 28% of the chip wiring area over other commonly used topologies.

Research paper thumbnail of On the origin of photoluminescence in indium oxide octahedron structures

Applied Physics Letters, 2008

A sixfold decrease in photoluminescence signal intensity at 590nm with increase in deposition tim... more A sixfold decrease in photoluminescence signal intensity at 590nm with increase in deposition time from 3to12h has been observed in single crystalline indium oxide octahedron structures grown by vapor-phase evaporation method. Electron paramagnetic resonance and energy dispersive x-ray analysis confirm that the concentration of oxygen vacancies increases with deposition time. These results are contrary to the previous reports where oxygen vacancies were shown to be responsible for photoluminescence in indium oxide structures. Our results indicate that indium interstitials and their associated complex defects other than oxygen vacancies are responsible for the photoluminescence in In2O3 microstructures.

Research paper thumbnail of RT61 Power Turbine 100K MTBO Life Extension - Life Cycle Cost Reduction

Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, 2017

RT61 is a three-stage industrial power turbine which couples with industrial RB211-24GT gas gener... more RT61 is a three-stage industrial power turbine which couples with industrial RB211-24GT gas generator. This power turbine was designed and developed by the turbomachinery group in Mount Vernon, Ohio. It was designed based on the 3-D vortex theory during the early 2000 for increased power output and efficiency. It was also designed for low weight with modular construction for ease in maintainability. The industrial RB211-GT61 product serves both oil & gas and power generation market. Recent drop in crude oil prices has posed significant challenges to the oil & gas customers. To increase the profitability, the entire oil & gas industry (upstream, midstream, and downstream) is looking for opportunities to decrease the operating cost. This served as the main motivation for the life extension of the RT61 power turbine. In order to reduce customer life cycle cost, Siemens Energy, Inc., has extended the life of its most efficient power turbine from 50,000 hours to 100,000 hours. This paper...

Research paper thumbnail of Stress Rupture Behavior of Disk Superalloys Exposed to Low-Temperature Hot Corrosion Environment

Volume 10B: Structures and Dynamics, 2020

Siemens Energy has a large fleet of aero-derivative gas turbines. The performance and durability ... more Siemens Energy has a large fleet of aero-derivative gas turbines. The performance and durability of these power turbines largely depend on the capability of hot section components to resist high-temperature surface attacks and to maintain their mechanical properties. Hot corrosion attack occurs due to exposure of turbine components to sulfur-bearing fuels/air together with other corrosive compounds during turbine operation. This paper investigates the impact of low-temperature hot corrosion on the stress rupture of commonly used gas turbine disk alloys, including Inconel 718, Incoloy 901, and A-286. The results indicate that Inconel 718 and Incoloy 901 maintain their creep strength advantage over A-286 in a low-temperature hot corrosion inducing environment at 1100°F. All three materials exhibited an equivalent life reduction in the corrosive environments at 1100°F. Moreover, the results demonstrate that the stress-rupture life of materials in hot-corrosion environments depends on t...

Research paper thumbnail of PPAR-γexpression modulates insulin sensitivity in C2C12 skeletal muscle cells

British Journal of Pharmacology, 2004

Peroxisome proliferator-activated receptor-g (PPAR-g) expression is very low in skeletal muscle c... more Peroxisome proliferator-activated receptor-g (PPAR-g) expression is very low in skeletal muscle cells, which is one of the most important target tissues for insulin and plays a predominant role in glucose homeostasis. It has recently been shown that muscle-specific PPAR-g deletion in mouse causes insulin resistance. However, it is likely that the observed effects might be due to secondary interaction in whole animal. 2 The aim of the study was to explore the role of muscle PPAR-g in insulin sensitivity. We stably transfected C2C12 skeletal muscle cells with plasmids containing sense or antisense constructs of PPAR-g and examined the effect of modulation of PPAR-g expression in terms of glucose uptake. Effect was also examined in insulin-resistant C2C12 skeletal muscle cells. 3 In transfected C2C12 cell line, the inhibition of PPAR-g expression (23.070.005%) was observed to induce insulin resistance as determined by functional assessment of 2-deoxyglucose incorporation. 4 Overexpression of PPAR-g (28.570.008%) produced an additional effect on insulin (100 nM) and Pioglitazone (50 mM), resulting in 42.773.5% increase in glucose uptake as against 29.272.8% in wild-type C2C12 skeletal muscle cells differentiated under normal (2% horse serum) condition. Under similar treatment, PPAR-g overexpressing cells resistant to insulin exhibited enhanced glucose uptake upto 60.774.08%, as compared to 23.875.1% observed in wild-type C2C12 skeletal muscle cells. 5 These data demonstrate a direct involvement of PPAR-g in insulin sensitization of TZD action on skeletal muscle cells, and suggest that pharmacological overexpression of muscle PPAR-g gene in skeletal muscle might be a useful strategy for the treatment of insulin resistance.

Research paper thumbnail of Cognitive remediation and schizophrenia: Effects on brain complexity

Research paper thumbnail of Driving Style Recognition System Using Smartphone Sensors Based on Fuzzy Logic

Computers, Materials & Continua

Every 24 seconds, someone dies on the road due to road accidents and it is the 8th leading cause ... more Every 24 seconds, someone dies on the road due to road accidents and it is the 8th leading cause of death and the first among children aged 15-29 years. 1.35 million people globally die every year due to road traffic crashes. An additional 20-50 million suffer from non-fatal injuries, often resulting in longterm disabilities. This costs around 3% of Gross Domestic Product to most countries, and it is a considerable economic loss. The governments have taken various measures such as better road infrastructures and strict enforcement of motor-vehicle laws to reduce these accidents. However, there is still no remarkable reduction in the number of accidents. To ensure driver safety and achieve vision of zero accidents, there is a great need to monitor drivers' driving styles. Most of the existing driving behavior monitoring solutions are based on expensive hardware sensors. As most people are using smartphones in the modern era, a system based on mobile application is proposed, which can reduce the cost for developing intelligent transport systems (ITS) to a large extent. In this paper, we utilize the accelerometer sensor data and the global positioning system (GPS) sensor deployed in smartphones to recognize driving and speeding events. A driving style recognition system based on fuzzy logic is designed to classify different driving styles and control reckless driving by taking the longitudinal/lateral acceleration and speed as input parameters. Thus, the proposed system uses fuzzy logic rather than taking the crisp values of the sensors. Results indicate that the proposed system can classify reckless driving based on fuzzy logic and, therefore, reduce the number of accidents.

Research paper thumbnail of Efficacy of Cognitive Training Program Given to Patients with Schizophrenia Using Computer Tablets: a Preliminary Study

International Journal of Cognitive Therapy

Research paper thumbnail of Analysis of Stimuli Discrimination in Indian Patients with Chronic Schizophrenia

Event-Related Potentials (ERPs) components are widely studied to understand brain response associ... more Event-Related Potentials (ERPs) components are widely studied to understand brain response associated with cognitive processes in terms of amplitude, latency, and brain topography. Schizophrenia is a psychiatric illness which is characterized by reduced amplitude and increased latency of P300 ERP component. In this work, we have analyzed the attributes of P300 component involved during discrimination of visual stimuli (frequent, infrequent, and rare) at midline frontal and parietal sites in 14 schizophrenic patients who were receiving remediation in psychiatric setup for a long time. The key findings include increase in P300 amplitude when infrequent and rare stimuli were presented which reflected better contribution of attentional resources toward discrimination of stimuli. The P300 latency was found to be increased at same measurement sites for standards and rares for which the responses have to be ignored. The latencies were reduced in the case of infrequent stimuli (targets) whi...

Research paper thumbnail of The Impact of COVID-19 Pandemic on Different Sectors of the Indian Economy: A Descriptive Study

International Journal of Economics and Financial Issues, 2020

COVID-19 is changing the world we live in for the worst, and almost all parts of the world are st... more COVID-19 is changing the world we live in for the worst, and almost all parts of the world are stuck with hung economies and people's lockdown in their homes. This pandemic is not only taking a toll out of health care systems and peoples' lives but also its impacting world economies and resulting in job losses, business disruptions and making us head towards one of the worst times ever for people on earth. Almost, all the industries are undergoing massive declines in their businesses, and the impact is that much gigantic of this pandemic, that they are projecting worse times ahead. This paper focuses on different industries, which are most affected by the pandemic and how this results in job losses and the world economy.

Research paper thumbnail of A Meta Search Approach to Find Similarity between Web Pages Using Different Similarity Measures

Communications in Computer and Information Science, 2011

Page 1. S. Unnikrishnan, S. Surve, and D. Bhoir (Eds.): ICAC3 2011, CCIS 125, pp. 150–160, 2011. ... more Page 1. S. Unnikrishnan, S. Surve, and D. Bhoir (Eds.): ICAC3 2011, CCIS 125, pp. 150–160, 2011. © Springer-Verlag Berlin Heidelberg 2011 ... 70–78 (April 2009) 22. Simmetrics, Open Source API for text similarity Measurement, http://www.dcs.shef.ac.uk/-sam/simmetrics.html

Research paper thumbnail of Tunable synthesis of indium oxide octahedra, nanowires and tubular nanoarrow structures under oxidizing and reducing ambients

Nanotechnology, 2009

We report the effect of oxidizing and reducing ambients on the growth of indium oxide (IO) nanost... more We report the effect of oxidizing and reducing ambients on the growth of indium oxide (IO) nanostructures in the vapor phase evaporation method. Our results show that the oxidizing reagent, water, results in the growth of IO nanowires and preserves the In/O stoichiometry throughout the length of the nanowires. The reducing reagent, ethanol, makes the growth environment indium rich, resulting in the growth of indium-filled IO tubular nanoarrow structures. The growth of solid IO nanowires is attributed to a vapor-liquid-solid mechanism, whereas for indium-filled tubular nanoarrow structures a modified bottom-vapor-solid growth mechanism is proposed. The tunable synthesis of IO nanostructures in different morphologies with correction of their stoichiometry may have potential applications in future nanodevices.

Research paper thumbnail of Congestion-aware topology optimization of structured power/ground networks

IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, 2005

This paper presents an efficient method for optimizing the design of power/ground (P/G) networks ... more This paper presents an efficient method for optimizing the design of power/ground (P/G) networks by using locally regular, globally irregular grids. The procedure divides the power grid chip area into rectangular sub-grids or tiles. Treating the entire power grid to be composed of many tiles connected to each other enables the use of a hierarchical circuit analysis approach to identify the tiles containing the nodes having the greatest drops. Starting from an initial equal number of wires in each of the rectangular tiles, wires are added in the tiles using an iterative sensitivity based optimizer. A novel and efficient table lookup scheme is employed to provide gradient information to the optimizer. Experimental results on test circuits of practical chip sizes show that the proposed P/G network topology after optimization saves 16% to 28% of the chip wiring area over other commonly used topologies.

Research paper thumbnail of On the origin of photoluminescence in indium oxide octahedron structures

Applied Physics Letters, 2008

A sixfold decrease in photoluminescence signal intensity at 590nm with increase in deposition tim... more A sixfold decrease in photoluminescence signal intensity at 590nm with increase in deposition time from 3to12h has been observed in single crystalline indium oxide octahedron structures grown by vapor-phase evaporation method. Electron paramagnetic resonance and energy dispersive x-ray analysis confirm that the concentration of oxygen vacancies increases with deposition time. These results are contrary to the previous reports where oxygen vacancies were shown to be responsible for photoluminescence in indium oxide structures. Our results indicate that indium interstitials and their associated complex defects other than oxygen vacancies are responsible for the photoluminescence in In2O3 microstructures.

Research paper thumbnail of RT61 Power Turbine 100K MTBO Life Extension - Life Cycle Cost Reduction

Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy, 2017

RT61 is a three-stage industrial power turbine which couples with industrial RB211-24GT gas gener... more RT61 is a three-stage industrial power turbine which couples with industrial RB211-24GT gas generator. This power turbine was designed and developed by the turbomachinery group in Mount Vernon, Ohio. It was designed based on the 3-D vortex theory during the early 2000 for increased power output and efficiency. It was also designed for low weight with modular construction for ease in maintainability. The industrial RB211-GT61 product serves both oil & gas and power generation market. Recent drop in crude oil prices has posed significant challenges to the oil & gas customers. To increase the profitability, the entire oil & gas industry (upstream, midstream, and downstream) is looking for opportunities to decrease the operating cost. This served as the main motivation for the life extension of the RT61 power turbine. In order to reduce customer life cycle cost, Siemens Energy, Inc., has extended the life of its most efficient power turbine from 50,000 hours to 100,000 hours. This paper...

Research paper thumbnail of Stress Rupture Behavior of Disk Superalloys Exposed to Low-Temperature Hot Corrosion Environment

Volume 10B: Structures and Dynamics, 2020

Siemens Energy has a large fleet of aero-derivative gas turbines. The performance and durability ... more Siemens Energy has a large fleet of aero-derivative gas turbines. The performance and durability of these power turbines largely depend on the capability of hot section components to resist high-temperature surface attacks and to maintain their mechanical properties. Hot corrosion attack occurs due to exposure of turbine components to sulfur-bearing fuels/air together with other corrosive compounds during turbine operation. This paper investigates the impact of low-temperature hot corrosion on the stress rupture of commonly used gas turbine disk alloys, including Inconel 718, Incoloy 901, and A-286. The results indicate that Inconel 718 and Incoloy 901 maintain their creep strength advantage over A-286 in a low-temperature hot corrosion inducing environment at 1100°F. All three materials exhibited an equivalent life reduction in the corrosive environments at 1100°F. Moreover, the results demonstrate that the stress-rupture life of materials in hot-corrosion environments depends on t...

Research paper thumbnail of PPAR-γexpression modulates insulin sensitivity in C2C12 skeletal muscle cells

British Journal of Pharmacology, 2004

Peroxisome proliferator-activated receptor-g (PPAR-g) expression is very low in skeletal muscle c... more Peroxisome proliferator-activated receptor-g (PPAR-g) expression is very low in skeletal muscle cells, which is one of the most important target tissues for insulin and plays a predominant role in glucose homeostasis. It has recently been shown that muscle-specific PPAR-g deletion in mouse causes insulin resistance. However, it is likely that the observed effects might be due to secondary interaction in whole animal. 2 The aim of the study was to explore the role of muscle PPAR-g in insulin sensitivity. We stably transfected C2C12 skeletal muscle cells with plasmids containing sense or antisense constructs of PPAR-g and examined the effect of modulation of PPAR-g expression in terms of glucose uptake. Effect was also examined in insulin-resistant C2C12 skeletal muscle cells. 3 In transfected C2C12 cell line, the inhibition of PPAR-g expression (23.070.005%) was observed to induce insulin resistance as determined by functional assessment of 2-deoxyglucose incorporation. 4 Overexpression of PPAR-g (28.570.008%) produced an additional effect on insulin (100 nM) and Pioglitazone (50 mM), resulting in 42.773.5% increase in glucose uptake as against 29.272.8% in wild-type C2C12 skeletal muscle cells differentiated under normal (2% horse serum) condition. Under similar treatment, PPAR-g overexpressing cells resistant to insulin exhibited enhanced glucose uptake upto 60.774.08%, as compared to 23.875.1% observed in wild-type C2C12 skeletal muscle cells. 5 These data demonstrate a direct involvement of PPAR-g in insulin sensitization of TZD action on skeletal muscle cells, and suggest that pharmacological overexpression of muscle PPAR-g gene in skeletal muscle might be a useful strategy for the treatment of insulin resistance.