Pub Date : 2010-07-23DOI: 10.1109/ICBBE.2010.5514894
Guiping Li, Zhongbo Yu, Yiping Li
This study analyzed the spatial and temporal distributions of total nitrogen, total phosphorus and chlorophyll a in Taihu Lake, Easter China, and assessed the migration and dispersion patterns of nutrients in the lake in recent years. The results show that the highest concentrations of the three kinds of nutrients are located in the northern parts of Zhushan Bay and Meiliang Bay, and tend to spread from north to south and from west to east. The maximum total nitrogen concentration appeared in the north as early as 1-2 months earlier than in the south and showed a tendency to appear 1-2 months earlier than the past in various stations. High levels of total phosphorus remained progressively shorter periods from north to south. The maximum level of chlorophyll a appeared gradually later from north to south. As the southeastern region was affected by temperature, the peak there appeared twice in a year. Changes in levels of total nitrogen, chlorophyll a and biomass appeared to have significant inter-annual cycles. Changes in levels of biomass showed a 4-month lag in comparison to nitrogen.
{"title":"Impact Analysis on Spatial and Temporal Distributions of Nutrients in Taihu Lake","authors":"Guiping Li, Zhongbo Yu, Yiping Li","doi":"10.1109/ICBBE.2010.5514894","DOIUrl":"https://doi.org/10.1109/ICBBE.2010.5514894","url":null,"abstract":"This study analyzed the spatial and temporal distributions of total nitrogen, total phosphorus and chlorophyll a in Taihu Lake, Easter China, and assessed the migration and dispersion patterns of nutrients in the lake in recent years. The results show that the highest concentrations of the three kinds of nutrients are located in the northern parts of Zhushan Bay and Meiliang Bay, and tend to spread from north to south and from west to east. The maximum total nitrogen concentration appeared in the north as early as 1-2 months earlier than in the south and showed a tendency to appear 1-2 months earlier than the past in various stations. High levels of total phosphorus remained progressively shorter periods from north to south. The maximum level of chlorophyll a appeared gradually later from north to south. As the southeastern region was affected by temperature, the peak there appeared twice in a year. Changes in levels of total nitrogen, chlorophyll a and biomass appeared to have significant inter-annual cycles. Changes in levels of biomass showed a 4-month lag in comparison to nitrogen.","PeriodicalId":6396,"journal":{"name":"2010 4th International Conference on Bioinformatics and Biomedical Engineering","volume":"6 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2010-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89710253","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 : 2010-07-23DOI: 10.1109/ICBBE.2010.5516592
Yangjie Cheng, Shaoguo Cui, D. Liu, Paul Liu
Ultrasound elastography is the technique of obtaining the tissue relative stiffness information, which plays an important role in early diagnosis. Conventional elastography computes the strain from the gradient of the displacement estimates between gated pre- and post-compression echo signals. Although elastography has been proven to be a potential diagnosis tool for breast/prostate tumor, vascular stiffening and hepatocirrhosis diseases, the application of frequency compounding in elastography to reduce coherent artifact of elastic imaging has rarely been reported. In this paper, a new method called Transmit-side Frequency Compounding for Elastography (TSEC) is proposed, which involves using weighted compounding of different frequency sub-elastograms. The sub-elastograms are formed from the corresponding probe center frequency echo signal pairs reflected from the tissue ROI. Due to the frequency dependent reflection process, these sub-elastograms should have different speckle pattern. Upon compounding these sub-elastograms, the amount of speckle in the resultant strain image is reduced. The effect of TSFC are investigated through phantom experiments, which confirms the reduction in strain image artifact is accomplished with no sacrifice of real-time ultrasonic imaging as well as a measurable improvement in SNRe and CNRe.
{"title":"Frequency Compounding for Ultrasound Freehand Elastography","authors":"Yangjie Cheng, Shaoguo Cui, D. Liu, Paul Liu","doi":"10.1109/ICBBE.2010.5516592","DOIUrl":"https://doi.org/10.1109/ICBBE.2010.5516592","url":null,"abstract":"Ultrasound elastography is the technique of obtaining the tissue relative stiffness information, which plays an important role in early diagnosis. Conventional elastography computes the strain from the gradient of the displacement estimates between gated pre- and post-compression echo signals. Although elastography has been proven to be a potential diagnosis tool for breast/prostate tumor, vascular stiffening and hepatocirrhosis diseases, the application of frequency compounding in elastography to reduce coherent artifact of elastic imaging has rarely been reported. In this paper, a new method called Transmit-side Frequency Compounding for Elastography (TSEC) is proposed, which involves using weighted compounding of different frequency sub-elastograms. The sub-elastograms are formed from the corresponding probe center frequency echo signal pairs reflected from the tissue ROI. Due to the frequency dependent reflection process, these sub-elastograms should have different speckle pattern. Upon compounding these sub-elastograms, the amount of speckle in the resultant strain image is reduced. The effect of TSFC are investigated through phantom experiments, which confirms the reduction in strain image artifact is accomplished with no sacrifice of real-time ultrasonic imaging as well as a measurable improvement in SNRe and CNRe.","PeriodicalId":6396,"journal":{"name":"2010 4th International Conference on Bioinformatics and Biomedical Engineering","volume":"13 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2010-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84359254","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 : 2010-06-18DOI: 10.1109/ICBBE.2010.5517734
Xiaoling Wang, Shasha Zhou
The lack of knowledge about water flow and particle behavior of the grit chamber with rotational flow remains a significant difficulty for the design of these work in sandstone wastewater of hydropower station. In the paper, Eulerian-Lagrangian multi-phase model is set up. The grit chamber with rotational flow in the powerhouse, which is located in southwest of China, is as a case. Velocity field of water and the behavior of particle trajectory of different particles size can be obtained, the distribution of the particle and the removal efficiency of different particle size are numerically computed.
{"title":"The Numerical Computation of Grit Chamber with Rotational Flow","authors":"Xiaoling Wang, Shasha Zhou","doi":"10.1109/ICBBE.2010.5517734","DOIUrl":"https://doi.org/10.1109/ICBBE.2010.5517734","url":null,"abstract":"The lack of knowledge about water flow and particle behavior of the grit chamber with rotational flow remains a significant difficulty for the design of these work in sandstone wastewater of hydropower station. In the paper, Eulerian-Lagrangian multi-phase model is set up. The grit chamber with rotational flow in the powerhouse, which is located in southwest of China, is as a case. Velocity field of water and the behavior of particle trajectory of different particles size can be obtained, the distribution of the particle and the removal efficiency of different particle size are numerically computed.","PeriodicalId":6396,"journal":{"name":"2010 4th International Conference on Bioinformatics and Biomedical Engineering","volume":"160 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2010-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73464623","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 : 2010-06-18DOI: 10.1109/ICBBE.2010.5516251
Sheng Wang, X. Qian, B. Han
In order to understand the variation of turbidity in the water column of Liuxihe reservoir, the relations of turbidity and hydrology status is analyzed, which shows a high relationship between them. A model about total suspended matter (TSM) is proposed to study TSM and related hydrology factors (inflow and outflow volume) quantitatively. In order to make the model close to the real state, the particle swarm optimization is applied to search a suitable parameters set of the model with the measured data. The validation result shows that the model reproduces the TSM variation trends well.
{"title":"Modeling the Effects of Inflow and Outflow Volume on Turbidity Variation in Liuxihe Reservoir","authors":"Sheng Wang, X. Qian, B. Han","doi":"10.1109/ICBBE.2010.5516251","DOIUrl":"https://doi.org/10.1109/ICBBE.2010.5516251","url":null,"abstract":"In order to understand the variation of turbidity in the water column of Liuxihe reservoir, the relations of turbidity and hydrology status is analyzed, which shows a high relationship between them. A model about total suspended matter (TSM) is proposed to study TSM and related hydrology factors (inflow and outflow volume) quantitatively. In order to make the model close to the real state, the particle swarm optimization is applied to search a suitable parameters set of the model with the measured data. The validation result shows that the model reproduces the TSM variation trends well.","PeriodicalId":6396,"journal":{"name":"2010 4th International Conference on Bioinformatics and Biomedical Engineering","volume":"156 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2010-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73473899","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 : 2010-06-18DOI: 10.1109/ICBBE.2010.5517403
Wen Chen
In this paper, two kinds of fluorine-contaminate soils, fluvo-aquic soil and paddy soil, were cultivated by nitrogen fertilizer. Then, we studied the various fluorine species in the cultivated soil by sequential extraction method, and study the effect of main components in nitrogen fertilizer on pH of soils. After adding nitrogen fertilizer, the pH value of soil would increase, which consequently led to the water soluble fluoride (Ws-F) increase. The result indicated that the pH value has significantly positive correlation with the content of Ws-F, and high pH value will make the fluorine contamination of soil become worse.
{"title":"Effect of Nitrogen Fertilizer on Fluorine Species and Soil pH in Fluorine-contaminate Soil","authors":"Wen Chen","doi":"10.1109/ICBBE.2010.5517403","DOIUrl":"https://doi.org/10.1109/ICBBE.2010.5517403","url":null,"abstract":"In this paper, two kinds of fluorine-contaminate soils, fluvo-aquic soil and paddy soil, were cultivated by nitrogen fertilizer. Then, we studied the various fluorine species in the cultivated soil by sequential extraction method, and study the effect of main components in nitrogen fertilizer on pH of soils. After adding nitrogen fertilizer, the pH value of soil would increase, which consequently led to the water soluble fluoride (Ws-F) increase. The result indicated that the pH value has significantly positive correlation with the content of Ws-F, and high pH value will make the fluorine contamination of soil become worse.","PeriodicalId":6396,"journal":{"name":"2010 4th International Conference on Bioinformatics and Biomedical Engineering","volume":"41 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2010-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73666823","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 : 2010-06-18DOI: 10.1109/ICBBE.2010.5516457
Y. Liu, Yong-de Zhang, Xianzheng Sha
To locate the spots in microarray images automatically, we combine the projection algorithm with statistic theory, making the gridding without absence and redundancy. The radius of spots could be estimated based on the improved algorithm, which is an important parameter in segmentation. Adaptive threshold is used to segment the image, and disk template generated automatically is used to detect the spots. The positive and weak spots could be detected correctly, so the methods are not only for the ideal images, but also for the images with many negative spots.
{"title":"Automatic Recognition of Microarray Images Using Projection Algorithm","authors":"Y. Liu, Yong-de Zhang, Xianzheng Sha","doi":"10.1109/ICBBE.2010.5516457","DOIUrl":"https://doi.org/10.1109/ICBBE.2010.5516457","url":null,"abstract":"To locate the spots in microarray images automatically, we combine the projection algorithm with statistic theory, making the gridding without absence and redundancy. The radius of spots could be estimated based on the improved algorithm, which is an important parameter in segmentation. Adaptive threshold is used to segment the image, and disk template generated automatically is used to detect the spots. The positive and weak spots could be detected correctly, so the methods are not only for the ideal images, but also for the images with many negative spots.","PeriodicalId":6396,"journal":{"name":"2010 4th International Conference on Bioinformatics and Biomedical Engineering","volume":"27 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2010-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73896424","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 : 2010-06-18DOI: 10.1109/ICBBE.2010.5515771
Honglei Chen, Yuancai Chen, H. Zhan, S. Fu
Statistics based experimental designs were used to construct a mixed-culture community for maximal chemical oxygen demand (COD) degradation of pulping effluents. By applying a fractional factorial design (FFD) of experiments, the significant effect of each strain on COD degradation was first quantified. Then steepest ascent method was employed to approach the experimental design space, followed by an application of response surface methodology (RSM) for further optimization. A quadratic model was found to be fit COD removal efficiency. Response surface analysis revealed that the optimum levels of the tested variables for the degradation of COD. A COD removal efficiency of (65.3 ±± 0.5) % was observed in verification experiment, which was close to the predicted value.
{"title":"Optimized Biodegradation of Pulping Effluent by Microbial Combination with Statistical Experimental Design","authors":"Honglei Chen, Yuancai Chen, H. Zhan, S. Fu","doi":"10.1109/ICBBE.2010.5515771","DOIUrl":"https://doi.org/10.1109/ICBBE.2010.5515771","url":null,"abstract":"Statistics based experimental designs were used to construct a mixed-culture community for maximal chemical oxygen demand (COD) degradation of pulping effluents. By applying a fractional factorial design (FFD) of experiments, the significant effect of each strain on COD degradation was first quantified. Then steepest ascent method was employed to approach the experimental design space, followed by an application of response surface methodology (RSM) for further optimization. A quadratic model was found to be fit COD removal efficiency. Response surface analysis revealed that the optimum levels of the tested variables for the degradation of COD. A COD removal efficiency of (65.3 ±± 0.5) % was observed in verification experiment, which was close to the predicted value.","PeriodicalId":6396,"journal":{"name":"2010 4th International Conference on Bioinformatics and Biomedical Engineering","volume":"63 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2010-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74005460","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 : 2010-06-18DOI: 10.1109/ICBBE.2010.5514873
Jin-Yi Chen, Wanyi Li, Ting-Ting Hai, Nian Li, Wei Li
Cuprous oxide(Cu2O)/rectorite nanocomposites were prepared through polyol method by using cupric acetate complex as precursor of Cu, aiming to utilize the iron species in the clay material and hydrogen peroxide derived from Cu2O to form a novel immobilized Fenton system. The obtained nanocomposites were characterized by X-ray diffraction, Scanning electron microscopy and X-ray Photoelectron Spectroscopy analysis. The results indicated that Cu2O exist in at least three forms: Cu2O adsorbed at surface, grew at the edge of layers, and plugged in montmorillonite-like layers of rectorite. The interaction mechanism between Cu2O and rectorite was that the Cu-O-Si bridging bond was formed by silicon-oxygen group(SiO4) and Cu2O.
{"title":"Study on the Synthesis Mechanism of Cuprous Oxide/Rectorite Nanocomposites by Polyol Method","authors":"Jin-Yi Chen, Wanyi Li, Ting-Ting Hai, Nian Li, Wei Li","doi":"10.1109/ICBBE.2010.5514873","DOIUrl":"https://doi.org/10.1109/ICBBE.2010.5514873","url":null,"abstract":"Cuprous oxide(Cu2O)/rectorite nanocomposites were prepared through polyol method by using cupric acetate complex as precursor of Cu, aiming to utilize the iron species in the clay material and hydrogen peroxide derived from Cu2O to form a novel immobilized Fenton system. The obtained nanocomposites were characterized by X-ray diffraction, Scanning electron microscopy and X-ray Photoelectron Spectroscopy analysis. The results indicated that Cu2O exist in at least three forms: Cu2O adsorbed at surface, grew at the edge of layers, and plugged in montmorillonite-like layers of rectorite. The interaction mechanism between Cu2O and rectorite was that the Cu-O-Si bridging bond was formed by silicon-oxygen group(SiO4) and Cu2O.","PeriodicalId":6396,"journal":{"name":"2010 4th International Conference on Bioinformatics and Biomedical Engineering","volume":"7 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2010-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74375428","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 : 2010-06-18DOI: 10.1109/ICBBE.2010.5514970
Yan Dong, Yan Lou, Ji-hong Zhao, Yong-de Liu
Abstract: Sludge-glass ceramic particles were used as filter media for single biological aerated filter (BAF) to treat dairy wastewater in this study. Seed sludge was inoculated from Zhengzhou Wulongkou wastewater treatment plant. When bio-film was promoted and the effluent contamination removal rates above 40% after one week's operation, started to optimize the operation parameters such as pH, hydraulic retention time (HRT) and influent load, taking COD, NH4+-N,TN as well as TP removal rate as standards. The result indicated that the best removal efficiency of contaminations in effluent was under the conditions of pH 7-8, HRT 8h, COD 2055 mg/L and NH4+-N 70mg/L. And the effluent COD was about 80-90 mg/L, NH4+-N 7-10mg/L, which had already reached the desired standards. Simultaneously, it obviously showed that single-BAF was an ideal technology for dairy wastewater treatment, regardless of high COD concentration above 2000mg/L.
{"title":"The Optimization Parameters and Performance of Biological Aerated Filter with Sludge-Glass Ceramic Particles as Biofilter for Dairy Wastewater Treatment","authors":"Yan Dong, Yan Lou, Ji-hong Zhao, Yong-de Liu","doi":"10.1109/ICBBE.2010.5514970","DOIUrl":"https://doi.org/10.1109/ICBBE.2010.5514970","url":null,"abstract":"Abstract: Sludge-glass ceramic particles were used as filter media for single biological aerated filter (BAF) to treat dairy wastewater in this study. Seed sludge was inoculated from Zhengzhou Wulongkou wastewater treatment plant. When bio-film was promoted and the effluent contamination removal rates above 40% after one week's operation, started to optimize the operation parameters such as pH, hydraulic retention time (HRT) and influent load, taking COD, NH4+-N,TN as well as TP removal rate as standards. The result indicated that the best removal efficiency of contaminations in effluent was under the conditions of pH 7-8, HRT 8h, COD 2055 mg/L and NH4+-N 70mg/L. And the effluent COD was about 80-90 mg/L, NH4+-N 7-10mg/L, which had already reached the desired standards. Simultaneously, it obviously showed that single-BAF was an ideal technology for dairy wastewater treatment, regardless of high COD concentration above 2000mg/L.","PeriodicalId":6396,"journal":{"name":"2010 4th International Conference on Bioinformatics and Biomedical Engineering","volume":"16 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2010-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75265575","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 : 2010-06-18DOI: 10.1109/ICBBE.2010.5515111
Fachao Zhou, Jin-zhong Yang, T. Biswas
Australian irrigators are under considerable pressure to increase irrigation efficiency and reduce deep drainage, driven by environmental and economic imperatives. Capacitance probe sensors are relatively cheap and popular electromagnetic equipment to measure soil water content. A field experiment was performed with capacitance probe in Mallee area of Australia, to collect the water content dynamics and deep percolation below of root zone. A relationship between these multi-sensor probes and estimates of deep percolation calculated using the Darcy's flux equation. Two empirical models of water retention curve were compared to illuminate the importance of water retention curve in deep percolation. The deep percolation estimate shows considerable daily and seasonal variations of drainage rate.
{"title":"Assessment of Deep Percolation in Citrus Orchard","authors":"Fachao Zhou, Jin-zhong Yang, T. Biswas","doi":"10.1109/ICBBE.2010.5515111","DOIUrl":"https://doi.org/10.1109/ICBBE.2010.5515111","url":null,"abstract":"Australian irrigators are under considerable pressure to increase irrigation efficiency and reduce deep drainage, driven by environmental and economic imperatives. Capacitance probe sensors are relatively cheap and popular electromagnetic equipment to measure soil water content. A field experiment was performed with capacitance probe in Mallee area of Australia, to collect the water content dynamics and deep percolation below of root zone. A relationship between these multi-sensor probes and estimates of deep percolation calculated using the Darcy's flux equation. Two empirical models of water retention curve were compared to illuminate the importance of water retention curve in deep percolation. The deep percolation estimate shows considerable daily and seasonal variations of drainage rate.","PeriodicalId":6396,"journal":{"name":"2010 4th International Conference on Bioinformatics and Biomedical Engineering","volume":"303 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2010-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75272269","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：