Pub Date : 2015-03-12DOI: 10.1109/SPACES.2015.7058272
M. Devendra, K. Manjunathachari
Very accurate estimation of the signal direction of arrival (DOA) has received a tremendous interest in communication and radar systems for commercial and as well as for military applications. This paper proposes the implementation of finding direction of arrival of the signal to an array system using MUSIC (Multiple Signal Classification) algorithm. The solution includes finding general Eigen values and used Jacobi algorithm for the calculation of Eigen values and Eigen vectors, which uses rotation mode to realize Eigen value decomposition in order to reduce computations and finally achieves real time array direction finding. Performance estimation of music algorithm by varying number of antenna elements in an array is performed and Simulation results are obtained using MATLAB.
{"title":"DOA estimation of a system using MUSIC method","authors":"M. Devendra, K. Manjunathachari","doi":"10.1109/SPACES.2015.7058272","DOIUrl":"https://doi.org/10.1109/SPACES.2015.7058272","url":null,"abstract":"Very accurate estimation of the signal direction of arrival (DOA) has received a tremendous interest in communication and radar systems for commercial and as well as for military applications. This paper proposes the implementation of finding direction of arrival of the signal to an array system using MUSIC (Multiple Signal Classification) algorithm. The solution includes finding general Eigen values and used Jacobi algorithm for the calculation of Eigen values and Eigen vectors, which uses rotation mode to realize Eigen value decomposition in order to reduce computations and finally achieves real time array direction finding. Performance estimation of music algorithm by varying number of antenna elements in an array is performed and Simulation results are obtained using MATLAB.","PeriodicalId":432479,"journal":{"name":"2015 International Conference on Signal Processing and Communication Engineering Systems","volume":"440 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114957598","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 : 2015-03-12DOI: 10.1109/SPACES.2015.7058265
Dhruven Prajapati, Kruti Dangarwala
The image mosaicing is one of the most widely used techniques for semi-automated or automated recovery of original documents from ripped up documents. Reconstruction of hand torn or ripped-up paper documents is a challenging job in forensic, investigation science, historical artifact reconstruction. Creation of document mosaic images from some torn piece views is a powerful means of getting a larger view of a document image than available within a single view, and it has been used in wide range of applications. A general framework for document image mosaicing is proposed in this paper. This paper also discusses a review on different applications of image mosaicing mainly in the area of document image mosaicing.
{"title":"Various document image mosaicing method in image processing: A survey","authors":"Dhruven Prajapati, Kruti Dangarwala","doi":"10.1109/SPACES.2015.7058265","DOIUrl":"https://doi.org/10.1109/SPACES.2015.7058265","url":null,"abstract":"The image mosaicing is one of the most widely used techniques for semi-automated or automated recovery of original documents from ripped up documents. Reconstruction of hand torn or ripped-up paper documents is a challenging job in forensic, investigation science, historical artifact reconstruction. Creation of document mosaic images from some torn piece views is a powerful means of getting a larger view of a document image than available within a single view, and it has been used in wide range of applications. A general framework for document image mosaicing is proposed in this paper. This paper also discusses a review on different applications of image mosaicing mainly in the area of document image mosaicing.","PeriodicalId":432479,"journal":{"name":"2015 International Conference on Signal Processing and Communication Engineering Systems","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122368240","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 : 2015-03-12DOI: 10.1109/SPACES.2015.7058204
M. Sridhar, K. P. Raju, C. S. Rao, D. Ratnam
Radio frequency signals can be affected by different propagation impairments like rain attenuation, tropospheric scintillation, water vapour attenuation, cloud attenuation, and ionospheric scintillations. At L-band frequencies (1GHz-2 GHz), ionospheric scintillations are predominant and cause variations in the amplitude and/or phase of the GPS signals. In this paper, the Hilbert - Huang Transform (HHT) method has been proposed for mitigating the phase scintillation effects on GPS signal. Ionospheric data collected at KL University, Guntur have been considered for studying the effect of phase scintillations. The obtained results have been validated and compared with the results of the Wavelet Transform technique. The performance of HHT has been observed to be better than wavelet transform in reducing the scintillations.
{"title":"Spectral analysis of ionospheric phase scintillations using Hilbert — Huang transform at a low-latitude GNSS station","authors":"M. Sridhar, K. P. Raju, C. S. Rao, D. Ratnam","doi":"10.1109/SPACES.2015.7058204","DOIUrl":"https://doi.org/10.1109/SPACES.2015.7058204","url":null,"abstract":"Radio frequency signals can be affected by different propagation impairments like rain attenuation, tropospheric scintillation, water vapour attenuation, cloud attenuation, and ionospheric scintillations. At L-band frequencies (1GHz-2 GHz), ionospheric scintillations are predominant and cause variations in the amplitude and/or phase of the GPS signals. In this paper, the Hilbert - Huang Transform (HHT) method has been proposed for mitigating the phase scintillation effects on GPS signal. Ionospheric data collected at KL University, Guntur have been considered for studying the effect of phase scintillations. The obtained results have been validated and compared with the results of the Wavelet Transform technique. The performance of HHT has been observed to be better than wavelet transform in reducing the scintillations.","PeriodicalId":432479,"journal":{"name":"2015 International Conference on Signal Processing and Communication Engineering Systems","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128990281","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 : 2015-03-12DOI: 10.1109/SPACES.2015.7058217
Ramakant Chandrakar, A. Kushwaha, N. Choubey
Mobile Ad hocNetworks (MANETs) are becoming more important to wireless communications due to increasing popularity of mobile devices. The main challenge for future wireless networks is the quality of service for consumer satisfaction. The tool is supporting us with instant video transmissions such as video conferences and webinars. Multiple network hops are necessary to deliver and exchange data across a network Each Mobile node also performs as a router which forwards the packets to their nearest hop and thus finally the packet reaches to the destination. First, describes the uniqueness of Mobile Ad hoc Networks and their Routing protocol, and second a mobile ad hoc network (MANET) which consists of set mobile wireless nodes and one fixed wireless server are design using ns-2. In this research paper simulation of threeMANET routing protocols AODV, DSR and DSDV are done on the basis of three performance parameters i.e. Packet Delivery Ratio (PDR), End-to-End delay and Throughput.
{"title":"Evaluation of routing protocols AODV, DSR and DSDV to enhance video transmission over Mobile Ad hoc Networks","authors":"Ramakant Chandrakar, A. Kushwaha, N. Choubey","doi":"10.1109/SPACES.2015.7058217","DOIUrl":"https://doi.org/10.1109/SPACES.2015.7058217","url":null,"abstract":"Mobile Ad hocNetworks (MANETs) are becoming more important to wireless communications due to increasing popularity of mobile devices. The main challenge for future wireless networks is the quality of service for consumer satisfaction. The tool is supporting us with instant video transmissions such as video conferences and webinars. Multiple network hops are necessary to deliver and exchange data across a network Each Mobile node also performs as a router which forwards the packets to their nearest hop and thus finally the packet reaches to the destination. First, describes the uniqueness of Mobile Ad hoc Networks and their Routing protocol, and second a mobile ad hoc network (MANET) which consists of set mobile wireless nodes and one fixed wireless server are design using ns-2. In this research paper simulation of threeMANET routing protocols AODV, DSR and DSDV are done on the basis of three performance parameters i.e. Packet Delivery Ratio (PDR), End-to-End delay and Throughput.","PeriodicalId":432479,"journal":{"name":"2015 International Conference on Signal Processing and Communication Engineering Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130369128","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 : 2015-03-12DOI: 10.1109/SPACES.2015.7058241
V. Srivani
This paper presents the design and development of Multistage Wilkinson 2-way power divider for L & S bands. 3-stage, 2-way Wilkinson power divider with microstrip lines was designed on RT duroid substrate. The measured results show good insertion loss, return loss and isolation better than 20dB throughout the band. These power dividers were successfully used inside Test Selection Matrix (TSM) units of ground checkout and demonstrated the functionality during the navigational payload satellite testing.
{"title":"1–2.5GHz Multistage Wilkinson 2-way power divider for checkout applications","authors":"V. Srivani","doi":"10.1109/SPACES.2015.7058241","DOIUrl":"https://doi.org/10.1109/SPACES.2015.7058241","url":null,"abstract":"This paper presents the design and development of Multistage Wilkinson 2-way power divider for L & S bands. 3-stage, 2-way Wilkinson power divider with microstrip lines was designed on RT duroid substrate. The measured results show good insertion loss, return loss and isolation better than 20dB throughout the band. These power dividers were successfully used inside Test Selection Matrix (TSM) units of ground checkout and demonstrated the functionality during the navigational payload satellite testing.","PeriodicalId":432479,"journal":{"name":"2015 International Conference on Signal Processing and Communication Engineering Systems","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127954216","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 : 2015-03-12DOI: 10.1109/SPACES.2015.7058296
Deep Jyoti Gogoi, Shounak Chakraborty, Ajoy Kumar Khan
Wireless sensor networks can provide low cost solution to verity of real world problems. Sensors are low cost tiny devices with limited storage, computational capability and power. They can be deployed in large scale for performing military, civilian and environmental surveillance tasks. The focus of this paper is a specialized architecture of wireless sensor networks targeted to disaster mitigation and have developed a new fault tolerant routing application for disaster monitoring and mitigation. This scheme can be used in cases where we need to continue our surveillance even after disaster, this happens specially in case of earthquake where minor and major seismic generally follow one after another and also in some post disaster relief services like checking of road availability and rescue of casualties. The resulting protocol is shown to continue operation in spite of breakdown of several components in the system i.e. fault tolerance.
{"title":"A noble wireless sensor routing application for disaster mitigation","authors":"Deep Jyoti Gogoi, Shounak Chakraborty, Ajoy Kumar Khan","doi":"10.1109/SPACES.2015.7058296","DOIUrl":"https://doi.org/10.1109/SPACES.2015.7058296","url":null,"abstract":"Wireless sensor networks can provide low cost solution to verity of real world problems. Sensors are low cost tiny devices with limited storage, computational capability and power. They can be deployed in large scale for performing military, civilian and environmental surveillance tasks. The focus of this paper is a specialized architecture of wireless sensor networks targeted to disaster mitigation and have developed a new fault tolerant routing application for disaster monitoring and mitigation. This scheme can be used in cases where we need to continue our surveillance even after disaster, this happens specially in case of earthquake where minor and major seismic generally follow one after another and also in some post disaster relief services like checking of road availability and rescue of casualties. The resulting protocol is shown to continue operation in spite of breakdown of several components in the system i.e. fault tolerance.","PeriodicalId":432479,"journal":{"name":"2015 International Conference on Signal Processing and Communication Engineering Systems","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128039567","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 : 2015-03-12DOI: 10.1109/SPACES.2015.7058270
T. J. V. S. Rao, M Venu Gopala Rao, T. Aswini
Inpainting is an imaging technique that modifying an image in an undetectable form, is as ancient as art itself. The goals and applications of inpainting are numerous, from the restoration of damaged paintings and photographs to the removal / replacement of selected objects. The popularity of sparse representation and compressed sensing makes the sparse priors to be considered for solving inpainting problems. In earlier works, the patch of an image is taken to be sparse in a particular basis, which is called Patch based sparse representation. The patch based modelling suffers from two severe problems. In our work we exploit the concept of Group based sparse representation (GSR), which takes group (composed of nonlocal patches with similar structures) as the basic unit instead of patch. The GSR sparsely represents natural images in the domain of group, which results intrinsic local sparsity and nonlocal self-similarity of images simultaneously in a unified framework Under the same roof, an efficient self-adaptive dictionary learning method is designed for each group with low complexity, rather than learning the dictionary from natural images.
彩绘是一种成像技术，它以一种无法察觉的形式修改图像，与艺术本身一样古老。修复的目的和应用是很多的，从修复损坏的绘画和照片到移除/替换选定的物体。稀疏表示和压缩感知的流行使得稀疏先验成为解决喷漆问题的重要方法。在早期的研究中，图像的patch在特定的基上是稀疏的，称为基于patch的稀疏表示。基于补丁的建模有两个严重的问题。在我们的工作中，我们利用基于群的稀疏表示(Group based sparse representation, GSR)的概念，将群(由结构相似的非局部斑块组成)作为基本单位，而不是斑块。GSR在群域稀疏表示自然图像，使图像在一个统一的框架内同时具有固有的局部稀疏性和非局部自相似性。在同一屋檐下，为每个组设计了一种高效的低复杂度自适应字典学习方法，而不是从自然图像中学习字典。
{"title":"Image inpainting with group based sparse representation using self adaptive dictionary learning","authors":"T. J. V. S. Rao, M Venu Gopala Rao, T. Aswini","doi":"10.1109/SPACES.2015.7058270","DOIUrl":"https://doi.org/10.1109/SPACES.2015.7058270","url":null,"abstract":"Inpainting is an imaging technique that modifying an image in an undetectable form, is as ancient as art itself. The goals and applications of inpainting are numerous, from the restoration of damaged paintings and photographs to the removal / replacement of selected objects. The popularity of sparse representation and compressed sensing makes the sparse priors to be considered for solving inpainting problems. In earlier works, the patch of an image is taken to be sparse in a particular basis, which is called Patch based sparse representation. The patch based modelling suffers from two severe problems. In our work we exploit the concept of Group based sparse representation (GSR), which takes group (composed of nonlocal patches with similar structures) as the basic unit instead of patch. The GSR sparsely represents natural images in the domain of group, which results intrinsic local sparsity and nonlocal self-similarity of images simultaneously in a unified framework Under the same roof, an efficient self-adaptive dictionary learning method is designed for each group with low complexity, rather than learning the dictionary from natural images.","PeriodicalId":432479,"journal":{"name":"2015 International Conference on Signal Processing and Communication Engineering Systems","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123917699","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 : 2015-03-12DOI: 10.1109/SPACES.2015.7058268
C. Narasimha, A. N. Rao
Now a day's representation of visual data in digital images is a good way of communication, but the image is degraded with the noise after the transmission. Noise is a major factor that effects image quality which is mainly produced in the methods of image acquirement and transmission. Image processing is required before the image can be utilized. Denoising the images holds the operation of the data of image to yields a visually high quality image. The main focus of this paper is, it presents the types of noise models, different types of noises and differentiating of image enhancement techniques. Here we provide a comparative study & exploration of different image enhancement algorithms.
{"title":"A comparative study: Spatial domain filter for medical image enhancement","authors":"C. Narasimha, A. N. Rao","doi":"10.1109/SPACES.2015.7058268","DOIUrl":"https://doi.org/10.1109/SPACES.2015.7058268","url":null,"abstract":"Now a day's representation of visual data in digital images is a good way of communication, but the image is degraded with the noise after the transmission. Noise is a major factor that effects image quality which is mainly produced in the methods of image acquirement and transmission. Image processing is required before the image can be utilized. Denoising the images holds the operation of the data of image to yields a visually high quality image. The main focus of this paper is, it presents the types of noise models, different types of noises and differentiating of image enhancement techniques. Here we provide a comparative study & exploration of different image enhancement algorithms.","PeriodicalId":432479,"journal":{"name":"2015 International Conference on Signal Processing and Communication Engineering Systems","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124065228","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 : 2015-03-12DOI: 10.1109/SPACES.2015.7058300
Afreen Begum Sana, Farheen Iqbal, Arshad Ahmad Khan Mohammad
Adhoc network design goal is to provide internet access anytime characterized by lack of infrastructure and absence of base station, mobility and heterogeneity which require a dynamic efficient routing protocol. We proposed a delay energy aware routing protocol called as reactive congestion aware multipath routing protocol-RCRP aim to select the route based on energy reduction rate and packet delivery time it address two important characteristics of mantes: improving life time of networks and avoiding congestion. It consider the node energy reduction rate(ERR) and packet delivery time(Pdt) to compute the delay energy drain rate(d.e.dr) optimistically with respect to current energy and traffic condition. The simulation result shows that this work is better than existing AOMDV and MM-AOMDV in terms of networks life time and end to end delays by using NS2.
{"title":"Quality of service routing for multipath manets","authors":"Afreen Begum Sana, Farheen Iqbal, Arshad Ahmad Khan Mohammad","doi":"10.1109/SPACES.2015.7058300","DOIUrl":"https://doi.org/10.1109/SPACES.2015.7058300","url":null,"abstract":"Adhoc network design goal is to provide internet access anytime characterized by lack of infrastructure and absence of base station, mobility and heterogeneity which require a dynamic efficient routing protocol. We proposed a delay energy aware routing protocol called as reactive congestion aware multipath routing protocol-RCRP aim to select the route based on energy reduction rate and packet delivery time it address two important characteristics of mantes: improving life time of networks and avoiding congestion. It consider the node energy reduction rate(ERR) and packet delivery time(Pdt) to compute the delay energy drain rate(d.e.dr) optimistically with respect to current energy and traffic condition. The simulation result shows that this work is better than existing AOMDV and MM-AOMDV in terms of networks life time and end to end delays by using NS2.","PeriodicalId":432479,"journal":{"name":"2015 International Conference on Signal Processing and Communication Engineering Systems","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128217097","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 : 2015-03-12DOI: 10.1109/SPACES.2015.7058271
B. Prabhakar, D. Reddy
This paper mainly deals with the performance comparison of several video coding standards by means of peak signal-to-noise ratio and subjective testing like Rate Distortion (RD) curves and average bit-rate savings. A particular procedure is applied for the video coding standards H.265/High Efficiency Video Coding (HEVC), H.264/MPEG4- Advance Video Coding (AVC), MPEG4V2, MPEG4 and the Google video codec's such as VP8, VP9 at different bit-rates and Peak Signal-to-Noise Ratios (PSNR) are estimated. The bit-rate reduction on an average is achieved about 50% for comparable to earlier video coding standards. The results obtained illustrate the H.265/HEVC achieving high peak signal-to-noise at low bit rates. This resembles high coding efficiency, comparing with lower versions of video coding standards.
{"title":"Analysis of video coding standards using PSNR and bit rate saving","authors":"B. Prabhakar, D. Reddy","doi":"10.1109/SPACES.2015.7058271","DOIUrl":"https://doi.org/10.1109/SPACES.2015.7058271","url":null,"abstract":"This paper mainly deals with the performance comparison of several video coding standards by means of peak signal-to-noise ratio and subjective testing like Rate Distortion (RD) curves and average bit-rate savings. A particular procedure is applied for the video coding standards H.265/High Efficiency Video Coding (HEVC), H.264/MPEG4- Advance Video Coding (AVC), MPEG4V2, MPEG4 and the Google video codec's such as VP8, VP9 at different bit-rates and Peak Signal-to-Noise Ratios (PSNR) are estimated. The bit-rate reduction on an average is achieved about 50% for comparable to earlier video coding standards. The results obtained illustrate the H.265/HEVC achieving high peak signal-to-noise at low bit rates. This resembles high coding efficiency, comparing with lower versions of video coding standards.","PeriodicalId":432479,"journal":{"name":"2015 International Conference on Signal Processing and Communication Engineering Systems","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127236162","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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