Pub Date : 2008-11-01DOI: 10.1109/ICSENST.2008.4757113
V.S. Nejad, J. Askari, S. Hosseinia
In this paper the problem of stabilizing a linear timeinvariant system with quantized feedback is addressed. We focus on systems with rectilinear quantization where only some of the outputs are quantized either by limited sensor precision or data rate constraints and the rest of the output is sent to the controller without quantization. We call these systems partly-quantized feedback systems. Aside from the rectilinear boxes that we know output resides in, we determine moving hyperplanes in output space such that exact value of output has to lie on these planes too. Using the intersection of rectilinear boxes and hyperplanes, we find the best estimate of output to be used in linear feedback controllers and hence we reduce the maximum quantization error and find a smaller invariant region around origin. A simulation of the proposed controller is also presented.
{"title":"Controller design by dynamic output sensing for linear partly-quantized feedback control systems","authors":"V.S. Nejad, J. Askari, S. Hosseinia","doi":"10.1109/ICSENST.2008.4757113","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757113","url":null,"abstract":"In this paper the problem of stabilizing a linear timeinvariant system with quantized feedback is addressed. We focus on systems with rectilinear quantization where only some of the outputs are quantized either by limited sensor precision or data rate constraints and the rest of the output is sent to the controller without quantization. We call these systems partly-quantized feedback systems. Aside from the rectilinear boxes that we know output resides in, we determine moving hyperplanes in output space such that exact value of output has to lie on these planes too. Using the intersection of rectilinear boxes and hyperplanes, we find the best estimate of output to be used in linear feedback controllers and hence we reduce the maximum quantization error and find a smaller invariant region around origin. A simulation of the proposed controller is also presented.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"62 1","pages":"278-283"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82092621","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 : 2008-11-01DOI: 10.1109/ICSENST.2008.4757178
Hong-sheng Cui, M. Habara, H. Ikezaki, K. Toko
A taste sensor with lipid/polymer membranes was developed in this study for detecting sweet taste substances. The lipid membrane was modified with gallic acid (3,4,5-trihydroxybenzoic acid) to enhanced the sensitivity to sugars. The result from the absorption spectra obtained from UV spectrum measurements and potentiometric measurements with the taste sensor indicated that the pKa and the steric structure of the phenolic compounds play an important role for the potential change of the taste sensor on sugars.
{"title":"Study of surface-modified lipid/polymer membranes for detecting sweet taste substances","authors":"Hong-sheng Cui, M. Habara, H. Ikezaki, K. Toko","doi":"10.1109/ICSENST.2008.4757178","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757178","url":null,"abstract":"A taste sensor with lipid/polymer membranes was developed in this study for detecting sweet taste substances. The lipid membrane was modified with gallic acid (3,4,5-trihydroxybenzoic acid) to enhanced the sensitivity to sugars. The result from the absorption spectra obtained from UV spectrum measurements and potentiometric measurements with the taste sensor indicated that the pKa and the steric structure of the phenolic compounds play an important role for the potential change of the taste sensor on sugars.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"22 1","pages":"610-614"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80184475","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 : 2008-11-01DOI: 10.1109/ICSENST.2008.4757186
H. Shen, M. Habara, K. Toko
The taste sensor was widely used in distinguishing various taste substances. However, the taste sensor has poorer sensitivity to uncharged molecules such as caffeine, a bitter substance, than to charged taste substances. In the present study, we discussed the sensitivity of caffeine detection using a taste sensor with lipid/polymer membranes that were formed with different length of methyl group of lipid, namely, tetra-n-ctylammonium bromide (R8), tetrakis-(decyl)-ammonium bromide (R10), tetradodecylammonium bromide (TDAB; R12), and tetrahexadecylammonium bromide (R16). As a result, we observed that the electric responses of the lipid membranes to caffeine were associated with the length of alkyl chain of a lipid and an optimum concentration of the lipids in membranes was also observed to enhance the sensitivity of caffeine with taste sensor.
{"title":"Influence of alkyl chain length of lipid in caffeine detection using taste sensor with lipid/polymer membranes","authors":"H. Shen, M. Habara, K. Toko","doi":"10.1109/ICSENST.2008.4757186","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757186","url":null,"abstract":"The taste sensor was widely used in distinguishing various taste substances. However, the taste sensor has poorer sensitivity to uncharged molecules such as caffeine, a bitter substance, than to charged taste substances. In the present study, we discussed the sensitivity of caffeine detection using a taste sensor with lipid/polymer membranes that were formed with different length of methyl group of lipid, namely, tetra-n-ctylammonium bromide (R8), tetrakis-(decyl)-ammonium bromide (R10), tetradodecylammonium bromide (TDAB; R12), and tetrahexadecylammonium bromide (R16). As a result, we observed that the electric responses of the lipid membranes to caffeine were associated with the length of alkyl chain of a lipid and an optimum concentration of the lipids in membranes was also observed to enhance the sensitivity of caffeine with taste sensor.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"163 1","pages":"652-655"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80323564","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 : 2008-11-01DOI: 10.1109/ICSENST.2008.4757164
Junghyeon Choi, Junho Park, Jongman Cho
The compliance and stiffness of artery are closely related to the disease of arteries. Pulse wave velocity (PWV) in the blood vessel is a basic and common parameter in the hemodynamic. Blood pressure (BP) and blood flow wave traveling in arteries are important because the PWV is affected directly by the condition of blood vessels. However, there is no standardized method to measure the PWV and it is difficult to measure. The conventional PWV measurement uses manual calculation of the pulse wave transmission time between coronary arterial proximal and distal points on a strip chart on which the pulse wave and ECG signal are recorded. In this study, a pressure sensor consisting of strain gauges is used to measure the BP of arteries in invasive method and regular ECG electrodes are used to record the ECG signal. The R-peak point of ECG is extracted by using a reference level and time windowing technique and the ascending starting point of BP is determined by using differentiation of the BP signal and time windowing technique. The algorithm proposed in this study, which can measure PWV automatically, shows robust and good results in the extraction of feature points and calculation of PWV.
{"title":"An automatic pulse wave velocity estimation using a blood pressure sensor for invasive measurement","authors":"Junghyeon Choi, Junho Park, Jongman Cho","doi":"10.1109/ICSENST.2008.4757164","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757164","url":null,"abstract":"The compliance and stiffness of artery are closely related to the disease of arteries. Pulse wave velocity (PWV) in the blood vessel is a basic and common parameter in the hemodynamic. Blood pressure (BP) and blood flow wave traveling in arteries are important because the PWV is affected directly by the condition of blood vessels. However, there is no standardized method to measure the PWV and it is difficult to measure. The conventional PWV measurement uses manual calculation of the pulse wave transmission time between coronary arterial proximal and distal points on a strip chart on which the pulse wave and ECG signal are recorded. In this study, a pressure sensor consisting of strain gauges is used to measure the BP of arteries in invasive method and regular ECG electrodes are used to record the ECG signal. The R-peak point of ECG is extracted by using a reference level and time windowing technique and the ascending starting point of BP is determined by using differentiation of the BP signal and time windowing technique. The algorithm proposed in this study, which can measure PWV automatically, shows robust and good results in the extraction of feature points and calculation of PWV.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"36 1","pages":"539-542"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86776655","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 : 2008-11-01DOI: 10.1109/ICSENST.2008.4757166
M. K. Deore, G. Jain, V. Gaikwad, P. Khanna
Thick films of AR grade ZnO were prepared by screen-printing technique. The gas sensing performance of thick films were tested for various gases. It showed maximum sensitivity to CO gas at 100degC for 100 ppm gas concentration. To improve the sensitivity and selectivity of the film towards a particular gas, ZnO thick films were surface modified by dipping them in a solution of nano silver for different intervals of time. These surface modified ZnO films showed larger sensitivity to H2S gas (100 ppm) than pure ZnO film at 300degC. Nano silver on the surface of the film shifts the reactivity of film from CO to H2S gas. A systematic study, of sensing performance of the sensor, indicates the key role-played by the nano silver species on the surface. The sensitivity, selectivity, response and recovery time of the sensor were measured and presented.
{"title":"Effect of nano Ag on gas sensing performance of ZnOThick films","authors":"M. K. Deore, G. Jain, V. Gaikwad, P. Khanna","doi":"10.1109/ICSENST.2008.4757166","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757166","url":null,"abstract":"Thick films of AR grade ZnO were prepared by screen-printing technique. The gas sensing performance of thick films were tested for various gases. It showed maximum sensitivity to CO gas at 100degC for 100 ppm gas concentration. To improve the sensitivity and selectivity of the film towards a particular gas, ZnO thick films were surface modified by dipping them in a solution of nano silver for different intervals of time. These surface modified ZnO films showed larger sensitivity to H2S gas (100 ppm) than pure ZnO film at 300degC. Nano silver on the surface of the film shifts the reactivity of film from CO to H2S gas. A systematic study, of sensing performance of the sensor, indicates the key role-played by the nano silver species on the surface. The sensitivity, selectivity, response and recovery time of the sensor were measured and presented.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"38 1","pages":"547-552"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80569117","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 : 2008-11-01DOI: 10.1109/ICSENST.2008.4757104
Chuanwei Zhang, Shiyuan Liu, T. Shi
Model-based infrared (MBIR) reflectance spectrometry has been introduced for characterization of the depth and profile of deep trench structures in dynamic random access memory (DRAM). Modeling the complex trench structure as a multilayer optical film stack with effective medium approximation (EMA) allows the determination of both trench depth and width from Fourier-transfer infrared (FTIR) reflectance spectrum. In this paper an algorithm combining artificial neural networks (ANN) and Levenberg-Marquardt (LM) is proposed to extract the geometric parameters from the measured reflectance data. An initial estimate of the geometric parameters is obtained by the ANN, and then it is used as an input for the LM algorithm which converges to a final solution with a few iterations. The combined algorithm has been implemented on our own experimental platform, and it has been demonstrated to achieve very high accurate results as well as fast enough computation ability.
{"title":"MBIR reflectance spectrometry for deep trench structure with ANN and Levenberg-Marquardt combined algorithm","authors":"Chuanwei Zhang, Shiyuan Liu, T. Shi","doi":"10.1109/ICSENST.2008.4757104","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757104","url":null,"abstract":"Model-based infrared (MBIR) reflectance spectrometry has been introduced for characterization of the depth and profile of deep trench structures in dynamic random access memory (DRAM). Modeling the complex trench structure as a multilayer optical film stack with effective medium approximation (EMA) allows the determination of both trench depth and width from Fourier-transfer infrared (FTIR) reflectance spectrum. In this paper an algorithm combining artificial neural networks (ANN) and Levenberg-Marquardt (LM) is proposed to extract the geometric parameters from the measured reflectance data. An initial estimate of the geometric parameters is obtained by the ANN, and then it is used as an input for the LM algorithm which converges to a final solution with a few iterations. The combined algorithm has been implemented on our own experimental platform, and it has been demonstrated to achieve very high accurate results as well as fast enough computation ability.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"50 1","pages":"234-237"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90919697","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 : 2008-11-01DOI: 10.1109/ICSENST.2008.4757063
C. Alippi, R. Camplani, Cristian Galperti, M. Roveri
Distributed environmental monitoring with wireless sensor networks (WSNs) is one of the most challenging research activities faced by the embedded system community in the last decade. Here, the need for pervasive, reliable and accurate monitoring systems has pushed the research towards the realization of credible deployments able to survive in harsh environments for long time. Design an effective WSN requires a good piece of engineer work, not to mention the research contribution needed to provide a credible deployment. As a matter of fact, to solve our application, we are looking for a monitoring framework scalable, adaptive with respect to topological changes in the network, power-aware in its middleware components and endowed with energy harvesting mechanisms to grant a long lifetime for the network. The paper addresses all main aspects related to the design of a WSN ranging from the -possible- need of an ad-hoc embedded system, to sensing, local and remote transmission, data storage and visualization; particular attention will be devoted to energy harvesting and management aspects at the unit and network level. Two applications, namely monitoring the marine environment and forecasting the collapse of rock faces in mountaineering areas will be the experimental leitmotiv of the presentation.
{"title":"Effective design of WSNs: From the lab to the real world","authors":"C. Alippi, R. Camplani, Cristian Galperti, M. Roveri","doi":"10.1109/ICSENST.2008.4757063","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757063","url":null,"abstract":"Distributed environmental monitoring with wireless sensor networks (WSNs) is one of the most challenging research activities faced by the embedded system community in the last decade. Here, the need for pervasive, reliable and accurate monitoring systems has pushed the research towards the realization of credible deployments able to survive in harsh environments for long time. Design an effective WSN requires a good piece of engineer work, not to mention the research contribution needed to provide a credible deployment. As a matter of fact, to solve our application, we are looking for a monitoring framework scalable, adaptive with respect to topological changes in the network, power-aware in its middleware components and endowed with energy harvesting mechanisms to grant a long lifetime for the network. The paper addresses all main aspects related to the design of a WSN ranging from the -possible- need of an ad-hoc embedded system, to sensing, local and remote transmission, data storage and visualization; particular attention will be devoted to energy harvesting and management aspects at the unit and network level. Two applications, namely monitoring the marine environment and forecasting the collapse of rock faces in mountaineering areas will be the experimental leitmotiv of the presentation.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"1 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86223539","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 : 2008-11-01DOI: 10.1109/ICSENST.2008.4757112
Dachuan Liu, X. Chi, J. Cui, Longtao Lin, Qiancheng Zhao, Zhenchuan Yang, G. Yan
In recent years, MEMS gyroscope which is a kind of angular-rate-sensor has been improved greatly. In this paper, the effect of temperature changing on MEMS gyroscope is analysed. An evaluation and compensation platform based on the MCU and PC software has been fabricated. The temperature tests were done and some novel compensation algorithms were presented to fit the temperature curve. The thermal bias drift of the gyroscope compensated by the platform was reduced to 0.0667deg/s/degC compared with 0.618deg/s/degC before compensation.
{"title":"Research on temperature dependent characteristics and compensation methods for digital gyroscope","authors":"Dachuan Liu, X. Chi, J. Cui, Longtao Lin, Qiancheng Zhao, Zhenchuan Yang, G. Yan","doi":"10.1109/ICSENST.2008.4757112","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757112","url":null,"abstract":"In recent years, MEMS gyroscope which is a kind of angular-rate-sensor has been improved greatly. In this paper, the effect of temperature changing on MEMS gyroscope is analysed. An evaluation and compensation platform based on the MCU and PC software has been fabricated. The temperature tests were done and some novel compensation algorithms were presented to fit the temperature curve. The thermal bias drift of the gyroscope compensated by the platform was reduced to 0.0667deg/s/degC compared with 0.618deg/s/degC before compensation.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"42 1","pages":"273-277"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86302667","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 : 2008-11-01DOI: 10.1109/ICSENST.2008.4757159
H. Wakiwaka, R. Kobayashi, K. Tashiro, Y. Nakamoto, Tsuyoshi Kawata
Structural steel changes its magnetic characteristics when pressure is applied to it. For developing a force sensor using structural steel, B-H characteristics and magnetostriction characteristics are very important factors. In this paper, an experimental force sensor was constructed. This sensor consists of sensor metal (SUS630, stainless steel, annealing), a foundation metal, and an exciting coil. The analysis of the force sensor revealed that as pressure stress increases, the coilpsilas inductance decreases. We propose in this paper that it is possible to develop a large rated load force sensor which utilizes changes in magnetic characteristics in spite of a small size.
{"title":"Making a simple structured large rated load force sensor","authors":"H. Wakiwaka, R. Kobayashi, K. Tashiro, Y. Nakamoto, Tsuyoshi Kawata","doi":"10.1109/ICSENST.2008.4757159","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757159","url":null,"abstract":"Structural steel changes its magnetic characteristics when pressure is applied to it. For developing a force sensor using structural steel, B-H characteristics and magnetostriction characteristics are very important factors. In this paper, an experimental force sensor was constructed. This sensor consists of sensor metal (SUS630, stainless steel, annealing), a foundation metal, and an exciting coil. The analysis of the force sensor revealed that as pressure stress increases, the coilpsilas inductance decreases. We propose in this paper that it is possible to develop a large rated load force sensor which utilizes changes in magnetic characteristics in spite of a small size.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"20 1","pages":"514-517"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81894706","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 : 2008-11-01DOI: 10.1109/ICSENST.2008.4757080
Y. Baste, A. Borhade, V. Gaikwad, G. Jain, D. D. Kajale
In this article, copper germanate (CuGeO3) mixed noble metal pervoskite oxide was prepared by solid-state synthesis process first time. XRD confirms the orthorhombic pervoskite phase of material. Thick films of CG were prepared by screen-printing technique. The gas sensing performance of thick films were tested for various gases. It showed maximum sensitivity to H2S gas at 50degC for less than 10ppm gas concentration. The sensitivity, selectivity, response and recovery time of the sensor were measured and presented.
{"title":"Thick film of CuGeO3 as a H2S gas sensor","authors":"Y. Baste, A. Borhade, V. Gaikwad, G. Jain, D. D. Kajale","doi":"10.1109/ICSENST.2008.4757080","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757080","url":null,"abstract":"In this article, copper germanate (CuGeO3) mixed noble metal pervoskite oxide was prepared by solid-state synthesis process first time. XRD confirms the orthorhombic pervoskite phase of material. Thick films of CG were prepared by screen-printing technique. The gas sensing performance of thick films were tested for various gases. It showed maximum sensitivity to H2S gas at 50degC for less than 10ppm gas concentration. The sensitivity, selectivity, response and recovery time of the sensor were measured and presented.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"43 1","pages":"90-93"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74711447","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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