Pub Date : 2013-12-01DOI: 10.1109/INDCON.2013.6726029
D. Dutta, P. Dutta, J. Sil
This paper proposes a weighted (W) k-prototype (KP) Multi Objective Genetic Algorithm (MOGA) (W - KP - MOGA) that can automatically evolve feature weights (based on importance of features in cluster) and clustering solutions. Here we are hybridizing KP with MOGA. Minimization of Homogeneity (H) and maximization of Separation (S) are two measures of optimization. For comparison purpose we have also implemented KP and KP - MOGA. Testing by different real world data set with different clustering validity indices shows the superiority of W - KP - MOGA.
{"title":"Feature weighted clustering of mixed data sets by hybrid evolutionary algorithm","authors":"D. Dutta, P. Dutta, J. Sil","doi":"10.1109/INDCON.2013.6726029","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6726029","url":null,"abstract":"This paper proposes a weighted (W) k-prototype (KP) Multi Objective Genetic Algorithm (MOGA) (W - KP - MOGA) that can automatically evolve feature weights (based on importance of features in cluster) and clustering solutions. Here we are hybridizing KP with MOGA. Minimization of Homogeneity (H) and maximization of Separation (S) are two measures of optimization. For comparison purpose we have also implemented KP and KP - MOGA. Testing by different real world data set with different clustering validity indices shows the superiority of W - KP - MOGA.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124846813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-01DOI: 10.1109/INDCON.2013.6726085
K. Subramanya, V. V. Bhat, Sandeep A. Kamath
Predicting acute hypotensive episode (AHE) in patients in emergency rooms and in intensive care units (ICU) is a difficult challenge. As it is well accepted that physiological compensatory adaptations to circulatory shock involve blood flow redistribution and increase in sympathetic stimulation, we recently investigated if galvanic skin response (GSR) or electro-dermal activity (EDA), a measure of sympathetic stimulation, could give information about the impending danger of acute hypotensive episode or circulatory collapse (Subramanya and Mudol, 2012). In this current study, a low-cost wearable device was developed and tested to help progress towards a system for predicting blood pressure (BP) and cardiovascular dynamics. In a pilot study, we examined hypotheses about the relation between GSR values and four BP indexes (systolic BP, diastolic BP, mean arterial pressure and pulse pressure) in apparently healthy human volunteers before and immediately after treadmill exercise. All four BP indexes had significant relationship with GSR, with pulse pressure possibly the strongest predictor of variations in the GSR and vice-versa. This paper opens up opportunities for future investigations to evaluate the utility of continuous monitoring of GSR to forecast imminent cardiovascular collapse, AHE and shock, and could have far-reaching implications for ICU, trauma and critical care management.
{"title":"A wearable device for monitoring galvanic skin response to accurately predict changes in blood pressure indexes and cardiovascular dynamics","authors":"K. Subramanya, V. V. Bhat, Sandeep A. Kamath","doi":"10.1109/INDCON.2013.6726085","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6726085","url":null,"abstract":"Predicting acute hypotensive episode (AHE) in patients in emergency rooms and in intensive care units (ICU) is a difficult challenge. As it is well accepted that physiological compensatory adaptations to circulatory shock involve blood flow redistribution and increase in sympathetic stimulation, we recently investigated if galvanic skin response (GSR) or electro-dermal activity (EDA), a measure of sympathetic stimulation, could give information about the impending danger of acute hypotensive episode or circulatory collapse (Subramanya and Mudol, 2012). In this current study, a low-cost wearable device was developed and tested to help progress towards a system for predicting blood pressure (BP) and cardiovascular dynamics. In a pilot study, we examined hypotheses about the relation between GSR values and four BP indexes (systolic BP, diastolic BP, mean arterial pressure and pulse pressure) in apparently healthy human volunteers before and immediately after treadmill exercise. All four BP indexes had significant relationship with GSR, with pulse pressure possibly the strongest predictor of variations in the GSR and vice-versa. This paper opens up opportunities for future investigations to evaluate the utility of continuous monitoring of GSR to forecast imminent cardiovascular collapse, AHE and shock, and could have far-reaching implications for ICU, trauma and critical care management.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121610023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-01DOI: 10.1109/INDCON.2013.6725931
K. Desai, M. Sankhe
We tested the hypothesis that maternal body mass index (BMI) determines fetal cardiac sympathetic activity. Heart rate variability (HRV) parameters of fetal are measured for obese & non-obese mother prior to delivery with Doppler ultrasound method. We studied 64 maternal abdominal Doppler ultrasound signals. From these, we identify 41 subjects of whose body mass index (BMI) ranging from 20 to 37. The R-R interval variability which shows the variation between consecutive heart beats, change over time was eventually adopted to calculate for time-domain, frequency domain and non linear analysis. Based on frequency analysis, the ranges of the LF and HF domains were defined as 0.04-0.15 and 0.15-0.4 Hz, respectively. We defined low frequency/high frequency (LF/HF) ratio as a index of sympathetic activity. The value of LF/HF ratio [Nonparametric Fast Fourier Transform (FFT) Based method] in normal pregnancy group displayed clearly decreasing trend with body mass index (BMI) y = - 0.013x + 0.965; R2 = 0.040 (one-way ANOVA: P <; 0.0001). The value of LF/HF ratio [Parametric Autoregressive (AR) Based] in normal pregnancy group displayed clearly decreasing trend with body mass index (BMI) y = - 0.011x + 0.8555; R2 = 0.051 (one-way ANOVA: P <; 0.0001). In consultation with gynecologists and child specialist it has been verified that the new born babies have more neurological problems following deliveries from obese mothers compared with deliveries from non-obese mothers.
{"title":"Correlations of fetal cardiac sympathetic activity with maternal body mass index","authors":"K. Desai, M. Sankhe","doi":"10.1109/INDCON.2013.6725931","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6725931","url":null,"abstract":"We tested the hypothesis that maternal body mass index (BMI) determines fetal cardiac sympathetic activity. Heart rate variability (HRV) parameters of fetal are measured for obese & non-obese mother prior to delivery with Doppler ultrasound method. We studied 64 maternal abdominal Doppler ultrasound signals. From these, we identify 41 subjects of whose body mass index (BMI) ranging from 20 to 37. The R-R interval variability which shows the variation between consecutive heart beats, change over time was eventually adopted to calculate for time-domain, frequency domain and non linear analysis. Based on frequency analysis, the ranges of the LF and HF domains were defined as 0.04-0.15 and 0.15-0.4 Hz, respectively. We defined low frequency/high frequency (LF/HF) ratio as a index of sympathetic activity. The value of LF/HF ratio [Nonparametric Fast Fourier Transform (FFT) Based method] in normal pregnancy group displayed clearly decreasing trend with body mass index (BMI) y = - 0.013x + 0.965; R2 = 0.040 (one-way ANOVA: P <; 0.0001). The value of LF/HF ratio [Parametric Autoregressive (AR) Based] in normal pregnancy group displayed clearly decreasing trend with body mass index (BMI) y = - 0.011x + 0.8555; R2 = 0.051 (one-way ANOVA: P <; 0.0001). In consultation with gynecologists and child specialist it has been verified that the new born babies have more neurological problems following deliveries from obese mothers compared with deliveries from non-obese mothers.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124229530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-01DOI: 10.1109/INDCON.2013.6726034
Chandrajit Pal, K. Chaudhury, A. Samanta, A. Chakrabarti, R. Ghosh
Bilateral filters are widely used in computer vision and digital imaging applications such as denoising, video abstraction, demosaicing, optical-flow estimation etc. to name a few. Its smoothing and edge preserving characteristics suites perfectly for image and video processing applications, yet its high computational complexity makes real-time hardware implementation a challenging task. This paper provides an efficient Field Programmable Gate Array (FPGA) based implementation of an edge preserving fast bilateral filter on a hardware software co-design environment of a most recent algorithm preserving the boundaries, spikes and canyons in presence of noise. Further, the four stage parallel pipelined architecture greatly improves the speed of operation. Moreover, our separable kernel implementation of the filtering hardware increases the speed of execution by almost five times than the traditional convolution filtering, while utilizing less hardware resource.
{"title":"Hardware software co-design of a fast bilateral filter in FPGA","authors":"Chandrajit Pal, K. Chaudhury, A. Samanta, A. Chakrabarti, R. Ghosh","doi":"10.1109/INDCON.2013.6726034","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6726034","url":null,"abstract":"Bilateral filters are widely used in computer vision and digital imaging applications such as denoising, video abstraction, demosaicing, optical-flow estimation etc. to name a few. Its smoothing and edge preserving characteristics suites perfectly for image and video processing applications, yet its high computational complexity makes real-time hardware implementation a challenging task. This paper provides an efficient Field Programmable Gate Array (FPGA) based implementation of an edge preserving fast bilateral filter on a hardware software co-design environment of a most recent algorithm preserving the boundaries, spikes and canyons in presence of noise. Further, the four stage parallel pipelined architecture greatly improves the speed of operation. Moreover, our separable kernel implementation of the filtering hardware increases the speed of execution by almost five times than the traditional convolution filtering, while utilizing less hardware resource.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128024352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-01DOI: 10.1109/INDCON.2013.6726147
R. Achar, P. S. Thilagam, Nihal Soans, P. V. Vikyath, Sathvik Rao, A. M. Vijeth
Cloud computing is an upcoming trend in the field of computer science in recent years. In cloud, computing resources are provided as service in the form of virtual machine to its clients across the globe based on demand. Huge demand for cloud resources results in overutilization of servers whenever there is a heavy load. It is necessary to distribute the load across the servers in cloud by taking into consideration of allocating the right amount of resources dynamically based on the load to improve the performance of applications running in virtual machines. In this paper we present an algorithm which dynamically allocate resources based on the need and distribute the load across the servers. We conducted the experiment on Xen Cloud Platform. We use response time as a metric. The experiments conducted shows that the proposed algorithm improves the performance of applications running in virtual machines by using the feature scaling and migration.
{"title":"Load balancing in cloud based on live migration of virtual machines","authors":"R. Achar, P. S. Thilagam, Nihal Soans, P. V. Vikyath, Sathvik Rao, A. M. Vijeth","doi":"10.1109/INDCON.2013.6726147","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6726147","url":null,"abstract":"Cloud computing is an upcoming trend in the field of computer science in recent years. In cloud, computing resources are provided as service in the form of virtual machine to its clients across the globe based on demand. Huge demand for cloud resources results in overutilization of servers whenever there is a heavy load. It is necessary to distribute the load across the servers in cloud by taking into consideration of allocating the right amount of resources dynamically based on the load to improve the performance of applications running in virtual machines. In this paper we present an algorithm which dynamically allocate resources based on the need and distribute the load across the servers. We conducted the experiment on Xen Cloud Platform. We use response time as a metric. The experiments conducted shows that the proposed algorithm improves the performance of applications running in virtual machines by using the feature scaling and migration.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124643748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-01DOI: 10.1109/INDCON.2013.6725943
B. A. Reddy, M. Veerachary
A centralized digital controller design methodology is proposed for a two-input DC-DC converter. An hankel-norm based interaction analysis is developed to quantify the interaction of the controlling input and outputs of the proposed two-input dc-dc converter. The proposed converter is capable of feeding power to the common load either individually drawing from any one source or simultaneously drawing from both the sources. The load division on the two-input source is demonstrated through a two-loop control strategy. A digital current controller ensures load division in the input sources while the bus voltage regulation is achieved through a single-loop voltage-mode controller. A 24 V, 60 Watt converter performance is analyzed and compared with the experimental observations.
{"title":"Hankel-norm based interaction analysis and digital controller design for two-input integrated DC-DC converter","authors":"B. A. Reddy, M. Veerachary","doi":"10.1109/INDCON.2013.6725943","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6725943","url":null,"abstract":"A centralized digital controller design methodology is proposed for a two-input DC-DC converter. An hankel-norm based interaction analysis is developed to quantify the interaction of the controlling input and outputs of the proposed two-input dc-dc converter. The proposed converter is capable of feeding power to the common load either individually drawing from any one source or simultaneously drawing from both the sources. The load division on the two-input source is demonstrated through a two-loop control strategy. A digital current controller ensures load division in the input sources while the bus voltage regulation is achieved through a single-loop voltage-mode controller. A 24 V, 60 Watt converter performance is analyzed and compared with the experimental observations.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125084772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-01DOI: 10.1109/INDCON.2013.6725858
P. P. Dalawai, A. Abhyankar
In this paper, a novel technique for the placement of phasor measurement units (PMUs) for complete and incomplete observability of a system using a search technique has been presented. It follows a graph theoretic approach. It is a two stage algorithm where first the network is reduced to eliminate radial zero injection buses, followed by the placement process. The algorithm proposed is a flexible one and can be used on systems both, with and without existing PMUs. The optimal placement set, out of the solution sets obtained, is selected depending on the geographical or communication based constraint on the nodes present in the system. The proposed technique has been tested using IEEE 14, 30 and 57 bus systems. The methodology has also been implemented on the Southern Grid (SR) of the Indian Power System.
{"title":"Placement of PMUs for complete and incomplete observability using search technique","authors":"P. P. Dalawai, A. Abhyankar","doi":"10.1109/INDCON.2013.6725858","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6725858","url":null,"abstract":"In this paper, a novel technique for the placement of phasor measurement units (PMUs) for complete and incomplete observability of a system using a search technique has been presented. It follows a graph theoretic approach. It is a two stage algorithm where first the network is reduced to eliminate radial zero injection buses, followed by the placement process. The algorithm proposed is a flexible one and can be used on systems both, with and without existing PMUs. The optimal placement set, out of the solution sets obtained, is selected depending on the geographical or communication based constraint on the nodes present in the system. The proposed technique has been tested using IEEE 14, 30 and 57 bus systems. The methodology has also been implemented on the Southern Grid (SR) of the Indian Power System.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128714787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-01DOI: 10.1109/INDCON.2013.6725916
O. Kulkarni, M. Mishra
This paper proposes a topology consisting of Zig-Zag transformer for neutral current compensation and reduced rating three-leg single capacitor DSTATCOM for load balancing and unity power factor operation in the presence of unbalanced and distorted load voltages. The detailed analysis of different voltages induced and currents flowing inside Zig-Zag transformer shows that Zig-Zag transformer provides low impedance path to zero sequence currents. In addition to that, the potential of the floating neutral of the Zig-Zag transformer connected to a three-phase source measured with respect to the neutral of that three-phase source equals the zero sequence voltage component of that source. This property can be used to get neutral current compensation in three-phase four-wire power distribution system even in presence of unbalanced and distorted voltages. As the neutral current (total zero sequence current) is being taken care by Zig-Zag transformer, a reduced rating DSTATCOM can be used for load balancing and unity power factor operation using instantaneous symmetrical components theory. A detailed simulation study for the proposed scheme is carried out using PSCAD software.
{"title":"Power quality improvement using Zig-Zag transformer and DSTATCOM in three phase power distribution system","authors":"O. Kulkarni, M. Mishra","doi":"10.1109/INDCON.2013.6725916","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6725916","url":null,"abstract":"This paper proposes a topology consisting of Zig-Zag transformer for neutral current compensation and reduced rating three-leg single capacitor DSTATCOM for load balancing and unity power factor operation in the presence of unbalanced and distorted load voltages. The detailed analysis of different voltages induced and currents flowing inside Zig-Zag transformer shows that Zig-Zag transformer provides low impedance path to zero sequence currents. In addition to that, the potential of the floating neutral of the Zig-Zag transformer connected to a three-phase source measured with respect to the neutral of that three-phase source equals the zero sequence voltage component of that source. This property can be used to get neutral current compensation in three-phase four-wire power distribution system even in presence of unbalanced and distorted voltages. As the neutral current (total zero sequence current) is being taken care by Zig-Zag transformer, a reduced rating DSTATCOM can be used for load balancing and unity power factor operation using instantaneous symmetrical components theory. A detailed simulation study for the proposed scheme is carried out using PSCAD software.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115823355","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-01DOI: 10.1109/INDCON.2013.6726098
C. Balakrishna, V. NaveenChandra, R. Pal
Image steganography intends to hide an important message within an image for the purpose of secret communication or storage. Maintaining imperceptibility of the message is a major characteristic of a good image steganography scheme. This paper, at first, generalizes the concept of single digit sum to support a number system with any given base. Then, this generalized base single digit sum has been utilized to develop an image steganography scheme which elegantly draws a balance between large payload and imperceptibility of the message. Experimental results establish the superiority of this method as compared to several existing image steganography schemes.
{"title":"Image steganography using generalized base single digit sum (GB-SDS)","authors":"C. Balakrishna, V. NaveenChandra, R. Pal","doi":"10.1109/INDCON.2013.6726098","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6726098","url":null,"abstract":"Image steganography intends to hide an important message within an image for the purpose of secret communication or storage. Maintaining imperceptibility of the message is a major characteristic of a good image steganography scheme. This paper, at first, generalizes the concept of single digit sum to support a number system with any given base. Then, this generalized base single digit sum has been utilized to develop an image steganography scheme which elegantly draws a balance between large payload and imperceptibility of the message. Experimental results establish the superiority of this method as compared to several existing image steganography schemes.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"166 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115821974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2013-12-01DOI: 10.1109/INDCON.2013.6726021
B. Mondal, C. Roychaudhury, J. Das, Sugato Ghosh, H. Saha
We report on the fabrication of pure Zinc Oxide (ZnO) and composite ZnO-SnO2 material based H2 sensor using a simple chemical route. The surface morphology and crystal structure of the samples were investigated by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The gas sensing performance of the sensor to Hydrogen in dry air was studied using current-voltage measurements. Selectivity of the sensor against carbon mono-oxide is studied. The obtained result demonstrates a promising approach in the development of low cost selective hydrogen sensor.
{"title":"Enhanced hydrogen sensitivity and selectivity of ZnO-SnO2 based sensor","authors":"B. Mondal, C. Roychaudhury, J. Das, Sugato Ghosh, H. Saha","doi":"10.1109/INDCON.2013.6726021","DOIUrl":"https://doi.org/10.1109/INDCON.2013.6726021","url":null,"abstract":"We report on the fabrication of pure Zinc Oxide (ZnO) and composite ZnO-SnO2 material based H2 sensor using a simple chemical route. The surface morphology and crystal structure of the samples were investigated by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The gas sensing performance of the sensor to Hydrogen in dry air was studied using current-voltage measurements. Selectivity of the sensor against carbon mono-oxide is studied. The obtained result demonstrates a promising approach in the development of low cost selective hydrogen sensor.","PeriodicalId":313185,"journal":{"name":"2013 Annual IEEE India Conference (INDICON)","volume":"13 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120983330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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