Pub Date : 2011-03-04DOI: 10.1109/CSPA.2011.5759836
A. Zul Azfar, D. Hazry
This paper describes the process of designing a GUI (Graphical user interface) for a remotely operated quadrotor UAV. In the process of building this quadrotor project, SolidWork 2009 software was used to develop the prototype before the actual model is made. An IMU sensor is used to measure the orientation of the quadrotor which is processed by a microcontroller to indicate the current orientation of the quadrotor before being transmitted to ground station wirelessly. The data received by the PC at the ground station then is shown on the graphical user interface (GUI) developed. The data flows from the microcontroller to the PC and the function used in the LabVIEW software is also discussed in this paper.
{"title":"Simple GUI design for monitoring of a remotely operated quadrotor unmanned aerial vehicle (UAV)","authors":"A. Zul Azfar, D. Hazry","doi":"10.1109/CSPA.2011.5759836","DOIUrl":"https://doi.org/10.1109/CSPA.2011.5759836","url":null,"abstract":"This paper describes the process of designing a GUI (Graphical user interface) for a remotely operated quadrotor UAV. In the process of building this quadrotor project, SolidWork 2009 software was used to develop the prototype before the actual model is made. An IMU sensor is used to measure the orientation of the quadrotor which is processed by a microcontroller to indicate the current orientation of the quadrotor before being transmitted to ground station wirelessly. The data received by the PC at the ground station then is shown on the graphical user interface (GUI) developed. The data flows from the microcontroller to the PC and the function used in the LabVIEW software is also discussed in this paper.","PeriodicalId":282179,"journal":{"name":"2011 IEEE 7th International Colloquium on Signal Processing and its Applications","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114715445","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 : 2011-03-04DOI: 10.1109/CSPA.2011.5759895
M. Asyraf Hamdani, K. A. Hashim, R. Adnan, Abd. Manan Samad
This paper presents a comprehensive research study in mapping of structural building using Digital Close-Range Photogrammetric Approach. The building chosen for this research study is Ipoh Old General Post Office. Digital Close-Range Photogrammetric approach is capable in 3D mapping of building and able to deliver an accurate measurements, less in time then conventional approach (ie. total station / tape measurement). 3D point was extrapolated from 2D images acquired from various angles at the scene and fed into photogrammetric processor that capable in producing 3D model. This research study shows that user is able to navigate throughout the building with ease and accuracy. The images created in 3D model are irrefutable recording of the 3D points and lot of data can be interpreted and is presented as final outcome.
{"title":"3D images processing of structural building using Digital Close-Range Photogrammetric Approach","authors":"M. Asyraf Hamdani, K. A. Hashim, R. Adnan, Abd. Manan Samad","doi":"10.1109/CSPA.2011.5759895","DOIUrl":"https://doi.org/10.1109/CSPA.2011.5759895","url":null,"abstract":"This paper presents a comprehensive research study in mapping of structural building using Digital Close-Range Photogrammetric Approach. The building chosen for this research study is Ipoh Old General Post Office. Digital Close-Range Photogrammetric approach is capable in 3D mapping of building and able to deliver an accurate measurements, less in time then conventional approach (ie. total station / tape measurement). 3D point was extrapolated from 2D images acquired from various angles at the scene and fed into photogrammetric processor that capable in producing 3D model. This research study shows that user is able to navigate throughout the building with ease and accuracy. The images created in 3D model are irrefutable recording of the 3D points and lot of data can be interpreted and is presented as final outcome.","PeriodicalId":282179,"journal":{"name":"2011 IEEE 7th International Colloquium on Signal Processing and its Applications","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125212165","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 : 2011-03-04DOI: 10.1109/CSPA.2011.5759840
Navanit Palrecha, Anvaya Rai, Ajay B. R. Kumar, Shikha Srivastava, V. Tyagi
Character segmentation has long been a critical area of the Optical Character Recognition. In this paper, we present an algorithm for character segmentation for Indic and Roman scripts. Character segmentation is difficult for Indic scripts because in these scripts characters are connected with the Shirorekha or headline and the regions bounding the two consecutive characters might overlap because of matraas. Horizontal projection profile is used to extract the Shirorekha and a vertical projection profile is used to segment the characters. Results of the algorithm for the scanned and facsimile documents for Devnagari Script are shown.
{"title":"Character segmentation for multi lingual Indic and Roman scripts","authors":"Navanit Palrecha, Anvaya Rai, Ajay B. R. Kumar, Shikha Srivastava, V. Tyagi","doi":"10.1109/CSPA.2011.5759840","DOIUrl":"https://doi.org/10.1109/CSPA.2011.5759840","url":null,"abstract":"Character segmentation has long been a critical area of the Optical Character Recognition. In this paper, we present an algorithm for character segmentation for Indic and Roman scripts. Character segmentation is difficult for Indic scripts because in these scripts characters are connected with the Shirorekha or headline and the regions bounding the two consecutive characters might overlap because of matraas. Horizontal projection profile is used to extract the Shirorekha and a vertical projection profile is used to segment the characters. Results of the algorithm for the scanned and facsimile documents for Devnagari Script are shown.","PeriodicalId":282179,"journal":{"name":"2011 IEEE 7th International Colloquium on Signal Processing and its Applications","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125562203","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 : 2011-03-04DOI: 10.1109/CSPA.2011.5759861
T. Ramasamy, V. Asirvadam, P. Sebastian
Processing Real-Time image sequence is now possible because of advancement of technological developments in digital signal processing, wide-band communication, and high-performance VLSI. With the developments in video technology, the surveillance system can be built with some low cost gadget such as the web-camera. In this modern life with increasing number of crime rate, people in society need for security and safety; video surveillance has become important reason to oppose threats of crime and terrorism. The most fundamental part of surveillance is foreground detection, which is retrieval of an object of interest. The object of interest can remodel by common background subtraction technique. There is some problem arises by using this technique, where because of variation of light source, the background constantly changes. The intensity of pixel changes throughout the object detection takes place. Intensity of pixel value changes leads to improper foreground detection, the background detected as foreground object. This paper proposes a method to model and update the background of the scene by intersection solving method.
{"title":"Detecting background setting for dynamic scene","authors":"T. Ramasamy, V. Asirvadam, P. Sebastian","doi":"10.1109/CSPA.2011.5759861","DOIUrl":"https://doi.org/10.1109/CSPA.2011.5759861","url":null,"abstract":"Processing Real-Time image sequence is now possible because of advancement of technological developments in digital signal processing, wide-band communication, and high-performance VLSI. With the developments in video technology, the surveillance system can be built with some low cost gadget such as the web-camera. In this modern life with increasing number of crime rate, people in society need for security and safety; video surveillance has become important reason to oppose threats of crime and terrorism. The most fundamental part of surveillance is foreground detection, which is retrieval of an object of interest. The object of interest can remodel by common background subtraction technique. There is some problem arises by using this technique, where because of variation of light source, the background constantly changes. The intensity of pixel changes throughout the object detection takes place. Intensity of pixel value changes leads to improper foreground detection, the background detected as foreground object. This paper proposes a method to model and update the background of the scene by intersection solving method.","PeriodicalId":282179,"journal":{"name":"2011 IEEE 7th International Colloquium on Signal Processing and its Applications","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121051600","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 : 2011-03-04DOI: 10.1109/CSPA.2011.5759868
Minghui Wang, Chen Liu, T. Zhang, Xin Jin, S. Goto
During the depth image based rendering (DIBR), depth map is a new type of video sequence to be compressed. The synthesized result of DIBR is highly related to the quality of the depth map. Depth map also has some new features than color maps. It occurs to us that some improvement is required. Higher efficiency and keeping the edge quality is two critical issues for depth compression. In this paper, region of interest (ROI) detection is introduced to meet these requirements. We adopt an ROI detection method which can distinguish the moving and relatively complexity part (foreground) from each frame. By using different mode decision strategy in ROI and non-ROI, computing burden is reduced and performance is kept. Experimental results show that the proposed strategy saves 40% computation of ME on average with an acceptable performance lost.
{"title":"Region of Interest oriented fast mode decision for depth map coding in DIBR","authors":"Minghui Wang, Chen Liu, T. Zhang, Xin Jin, S. Goto","doi":"10.1109/CSPA.2011.5759868","DOIUrl":"https://doi.org/10.1109/CSPA.2011.5759868","url":null,"abstract":"During the depth image based rendering (DIBR), depth map is a new type of video sequence to be compressed. The synthesized result of DIBR is highly related to the quality of the depth map. Depth map also has some new features than color maps. It occurs to us that some improvement is required. Higher efficiency and keeping the edge quality is two critical issues for depth compression. In this paper, region of interest (ROI) detection is introduced to meet these requirements. We adopt an ROI detection method which can distinguish the moving and relatively complexity part (foreground) from each frame. By using different mode decision strategy in ROI and non-ROI, computing burden is reduced and performance is kept. Experimental results show that the proposed strategy saves 40% computation of ME on average with an acceptable performance lost.","PeriodicalId":282179,"journal":{"name":"2011 IEEE 7th International Colloquium on Signal Processing and its Applications","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115472303","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 : 2011-03-04DOI: 10.1109/CSPA.2011.5759916
Z. Hussain, M. H. Mohd Noor, K. A. Ahmad, F. Ahmad
This paper describes the evaluation of the spreading factor inertia weight Particle Swarm Optimization (PSO) for the fuzzy logic control (FLC) of FES-assisted paraplegic indoor rowing exercise (FES-rowing). The FES-rowing is introduced as a total body exercise for rehabilitation of lower extremities through the application of functional electrical stimulation (FES). FLC is used to control the knee trajectories for smooth rowing manoeuvre and minimize the total electrical stimulation required by the muscles. PSO is implemented to optimize the parameter of the FLC. The objective function specified is to minimize the mean squared error of knee angle trajectory. The inertia weight of the PSO is updated using spreading factor technique and it performance is compared to the performance of PSO with time variant inertia weight. In view of good results obtained, it is concluded that Spreading Factor Inertia weight PSO is able to obtain the optimal parameter for FLC of FES-rowing.
{"title":"Evaluation of spreading factor inertial weight PSO for FLC of FES-assisted paraplegic indoor rowing exercise","authors":"Z. Hussain, M. H. Mohd Noor, K. A. Ahmad, F. Ahmad","doi":"10.1109/CSPA.2011.5759916","DOIUrl":"https://doi.org/10.1109/CSPA.2011.5759916","url":null,"abstract":"This paper describes the evaluation of the spreading factor inertia weight Particle Swarm Optimization (PSO) for the fuzzy logic control (FLC) of FES-assisted paraplegic indoor rowing exercise (FES-rowing). The FES-rowing is introduced as a total body exercise for rehabilitation of lower extremities through the application of functional electrical stimulation (FES). FLC is used to control the knee trajectories for smooth rowing manoeuvre and minimize the total electrical stimulation required by the muscles. PSO is implemented to optimize the parameter of the FLC. The objective function specified is to minimize the mean squared error of knee angle trajectory. The inertia weight of the PSO is updated using spreading factor technique and it performance is compared to the performance of PSO with time variant inertia weight. In view of good results obtained, it is concluded that Spreading Factor Inertia weight PSO is able to obtain the optimal parameter for FLC of FES-rowing.","PeriodicalId":282179,"journal":{"name":"2011 IEEE 7th International Colloquium on Signal Processing and its Applications","volume":"163 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126740609","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 : 2011-03-04DOI: 10.1109/CSPA.2011.5759917
Z. Mohd Yusoff, Z. Muhammad, Mohd Hezri Fazalul Rahiman, M. Tajuddin, R. Adnan, M. Taib
This paper presents a new method to model a steam temperature in distillation system by using system identification. Three nonlinear models have been compared, i.e. a Hammerstein model, a Wiener model and a Hammerstein-Wiener model. In this work, we propose the utilizing of the piecewise-linear and sigmoid network Hammerstein-Wiener model for single-input single output processes. All the models have been optimized with respect to initial state, search criterion and number of iterations. The testing of the trained model will be based on percentage of best fit (R2), Final Prediction Error (FPE) and loss function (V). Among three model tested, the most accurate model is the Hammerstein-Wiener model with piecewise linear and sigmoid network estimators. This model produce highest percentage of best fit, the lowest FPE and loss function.
{"title":"MOdeling Of Steam Distillation System Using Hammerstein-Wiener model","authors":"Z. Mohd Yusoff, Z. Muhammad, Mohd Hezri Fazalul Rahiman, M. Tajuddin, R. Adnan, M. Taib","doi":"10.1109/CSPA.2011.5759917","DOIUrl":"https://doi.org/10.1109/CSPA.2011.5759917","url":null,"abstract":"This paper presents a new method to model a steam temperature in distillation system by using system identification. Three nonlinear models have been compared, i.e. a Hammerstein model, a Wiener model and a Hammerstein-Wiener model. In this work, we propose the utilizing of the piecewise-linear and sigmoid network Hammerstein-Wiener model for single-input single output processes. All the models have been optimized with respect to initial state, search criterion and number of iterations. The testing of the trained model will be based on percentage of best fit (R2), Final Prediction Error (FPE) and loss function (V). Among three model tested, the most accurate model is the Hammerstein-Wiener model with piecewise linear and sigmoid network estimators. This model produce highest percentage of best fit, the lowest FPE and loss function.","PeriodicalId":282179,"journal":{"name":"2011 IEEE 7th International Colloquium on Signal Processing and its Applications","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124733468","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 : 2011-03-04DOI: 10.1109/CSPA.2011.5759837
A. Zul Azfar, D. Hazry
This paper discussed about a simple approach for implementing well-known PID controller in microcontroller for quadrotor project. This controller will be used for stabilizing the quadrotor while in flight. Towards to stabilize this type of air craft, sensors must be used as the feedback for PID controller. A new method in sensor fusion and inclination angle estimation is discussed in this paper. A simple system architecture for controlling four motors also included as a reference for the flow of the programming sequence. Single axis test has been done with result to prove this method and discussed in this paper.
{"title":"A simple approach on implementing IMU sensor fusion in PID controller for stabilizing quadrotor flight control","authors":"A. Zul Azfar, D. Hazry","doi":"10.1109/CSPA.2011.5759837","DOIUrl":"https://doi.org/10.1109/CSPA.2011.5759837","url":null,"abstract":"This paper discussed about a simple approach for implementing well-known PID controller in microcontroller for quadrotor project. This controller will be used for stabilizing the quadrotor while in flight. Towards to stabilize this type of air craft, sensors must be used as the feedback for PID controller. A new method in sensor fusion and inclination angle estimation is discussed in this paper. A simple system architecture for controlling four motors also included as a reference for the flow of the programming sequence. Single axis test has been done with result to prove this method and discussed in this paper.","PeriodicalId":282179,"journal":{"name":"2011 IEEE 7th International Colloquium on Signal Processing and its Applications","volume":"163 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116555078","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 : 2011-03-04DOI: 10.1109/CSPA.2011.5759843
N. Mahmood, N. Uyop, N. Zulkarnain, F. K. Che Harun, M. Kamarudin, A. Linoby
This paper presents a current invention for monitoring the athletes' heart rate during training or exercise session. A bracelet with different color code of Light Emitting Diode (LED) is designed as a wrist heart rate monitor. This color-coding makes the heart rate easier to monitor and enabling the user to know their heart rate range at a certain moment. Our works investigate the used of Zigbee and ANT+ as a transmission medium from transmitter (chest strap) to receiver (bracelet). Different colors signify different ranges of heart rate. Preliminary result demonstrated that it is very helpful for athletes and coaches to monitor the fitness level of athletes and regulate their exercise training regime in a more effective and safer manner.
{"title":"LED indicator for heart rate monitoring system in sport application","authors":"N. Mahmood, N. Uyop, N. Zulkarnain, F. K. Che Harun, M. Kamarudin, A. Linoby","doi":"10.1109/CSPA.2011.5759843","DOIUrl":"https://doi.org/10.1109/CSPA.2011.5759843","url":null,"abstract":"This paper presents a current invention for monitoring the athletes' heart rate during training or exercise session. A bracelet with different color code of Light Emitting Diode (LED) is designed as a wrist heart rate monitor. This color-coding makes the heart rate easier to monitor and enabling the user to know their heart rate range at a certain moment. Our works investigate the used of Zigbee and ANT+ as a transmission medium from transmitter (chest strap) to receiver (bracelet). Different colors signify different ranges of heart rate. Preliminary result demonstrated that it is very helpful for athletes and coaches to monitor the fitness level of athletes and regulate their exercise training regime in a more effective and safer manner.","PeriodicalId":282179,"journal":{"name":"2011 IEEE 7th International Colloquium on Signal Processing and its Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129889211","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 : 2011-03-04DOI: 10.1109/CSPA.2011.5759885
S. Z. Yahaya, N. M. Mat Isa
In this paper, the implementation of Hybrid Multilayered Perceptron (HMLP) network with two different activation functions has been studied. The study was conducted for PC based system and hardware based system and was evaluated in classifying the cervical cells data into it classes. For the hardware based system, this system was implemented in the 8051 microcontroller system. The structure of the HMLP network was arranged in two stages of hierarchy for acquiring four (4) types of input data and producing two outputs for each stage of hierarchy. The number of data used for training and testing of the HMLP network was 200 and 120 respectively. The HMLP network was trained using a Modified Recursive Prediction Error (MRPE) algorithm to obtain the appropriate parameters for the network. The result was evaluated in term of the percentage of accuracy, sensitivity, specificity, false negative and false positive. The result showed good performance of HMLP network for both types of activation function for the implementation on PC based system and hardware based system. For single number of hidden node, the performance of HMLP implemented with sigmoid and Elliot activation function was proven to be equals.
{"title":"Implementation of HMLP network with different activation function for cervical cells classification","authors":"S. Z. Yahaya, N. M. Mat Isa","doi":"10.1109/CSPA.2011.5759885","DOIUrl":"https://doi.org/10.1109/CSPA.2011.5759885","url":null,"abstract":"In this paper, the implementation of Hybrid Multilayered Perceptron (HMLP) network with two different activation functions has been studied. The study was conducted for PC based system and hardware based system and was evaluated in classifying the cervical cells data into it classes. For the hardware based system, this system was implemented in the 8051 microcontroller system. The structure of the HMLP network was arranged in two stages of hierarchy for acquiring four (4) types of input data and producing two outputs for each stage of hierarchy. The number of data used for training and testing of the HMLP network was 200 and 120 respectively. The HMLP network was trained using a Modified Recursive Prediction Error (MRPE) algorithm to obtain the appropriate parameters for the network. The result was evaluated in term of the percentage of accuracy, sensitivity, specificity, false negative and false positive. The result showed good performance of HMLP network for both types of activation function for the implementation on PC based system and hardware based system. For single number of hidden node, the performance of HMLP implemented with sigmoid and Elliot activation function was proven to be equals.","PeriodicalId":282179,"journal":{"name":"2011 IEEE 7th International Colloquium on Signal Processing and its Applications","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131683686","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：