检索结果-南通市图书馆

Machine Learning for Brain Imaging Genomics Methods:A Review

在线全文

学校读者我要写书评

暂无评论

Machine Intelligence Research 2023年第1期20卷 57-78页

作者： mei-ling wang Wei Shao Xiao-Ke Hao Dao-Qiang Zhang College of Computer Science and Technology Nanjing University of Aeronautics and AstronauticsNanjing 211106China Key Laboratory of Pattern Analysis and Machine Intelligence Ministry of Industry and Information TechnologyNanjing 211106China School of Artificial Intelligence Hebei University of TechnologyTianjin 300401China

In the past decade,multimodal neuroimaging and genomic techniques have been increasingly *** an interdiscip-linary topic,brain imaging genomics is devoted to evaluating and characterizing genetic variants in individuals that influence phenotyp-ic measures derived from structural and functional brain *** technique is capable of revealing the complex mechanisms by macroscopic intermediates from the genetic level to cognition and psychiatric disorders in *** is well known that machine learn-ing is a powerful tool in the data-driven association studies,which can fully utilize priori knowledge(intercorrelated structure informa-tion among imaging and genetic data)for association *** addition,the association study is able to find the association between risk genes and brain structure or function so that a better mechanistic understanding of behaviors or disordered brain functions is *** this paper,the related background and fundamental work in imaging genomics are first ***,we show the univari-ate learning approaches for association analysis,summarize the main idea and modelling in genetic-imaging association studies based on multivariate machine learning,and present methods for joint association analysis and outcome ***,this paper discusses some prospects for future work.

关键词： Brain imaging genomics machine learning multivariate analysis association analysis outcome prediction

Large-scale 3D Semantic Mapping Using Stereo Vision

在线全文

学校读者我要写书评

暂无评论

International Journal of Automation and computing 2018年第2期15卷 194-206页

作者： Yi Yang Fan Qiu Hao Li Lu Zhang mei-ling wang Meng-Yin Fu School of Automation and National Key Laboratory of Intelligent Control and Decision of Complex Systems Beijing Institute of Technology Beijing 100081 China Nanjing University of Science and Technology Nanjing 210094 China

In recent years, there have been a lot of interests in incorporating semantics into simultaneous localization and mapping （SLAM） systems. This paper presents an approach to generate an outdoor large-scale 3D dense semantic map based on binocular stereo vision. The inputs to system are stereo color images from a moving vehicle. First, dense 3D space around the vehicle is constructed, and tile motion of camera is estimated by visual odometry. Meanwhile, semantic segmentation is performed through the deep learning technology online, and the semantic labels are also used to verify tim feature matching in visual odometry. These three processes calculate the motion, depth and semantic label of every pixel in the input views. Then, a voxel conditional random field （CRF） inference is introduced to fuse semantic labels to voxel. After that, we present a method to remove the moving objects by incorporating the semantic labels, which improves the motion segmentation accuracy. The last is to generate tile dense 3D semantic map of an urban environment from arbitrary long image sequence. We evaluate our approach on KITTI vision benchmark, and the results show that the proposed method is effective.

关键词： Semantic map stereo vision motion segmentation visual odometry simultaneous localization and mapping (SLAM).

Intent-Slot Correlation Modeling for Joint Intent Prediction and Slot Filling

在线全文

学校读者我要写书评

暂无评论

Journal of Computer Science & Technology 2022年第2期37卷 309-319页

作者： Jun-Feng Fan mei-ling wang Chang-Liang Li Zi-Qiang Zhu Lu Mao AI Laboratory KingSoft CorporationBeijing 100190China

Slot filling and intent prediction are basic tasks in capturing semantic frame of human *** and intent have strong correlation for semantic frame *** each utterance,a specific intent type is generally determined with the indication information of words having slot tags(called as slot words),and in reverse the intent type decides that words of certain categories should be used to fill as ***,the Intent-Slot correlation is rarely modeled explicitly in existing studies,and hence may be not fully *** this paper,we model Intent-Slot correlation explicitly and propose a new framework for joint intent prediction and slot ***,we explore the effects of slot words on intent by differentiating them from the other words,and we recognize slot words by solving a sequence labeling task with the bi-directional long short-term memory(BiLSTM)***,slot recognition information is introduced into attention-based intent prediction and slot filling to improve semantic *** addition,we integrate the Slot-Gated mechanism into slot filling to model dependency of slots on ***,we obtain slot recognition,intent prediction and slot filling by training with joint *** results on the benchmark Air-line Travel Information System(ATIS)and Snips datasets show that our Intent-Slot correlation model achieves state-of-the-art semantic frame performance with a lightweight structure.

关键词： spoken language understanding slot filling intent prediction Intent-Slot correlation slot recognition

Enhancing electrocatalytic reduction of CO_(2)to C_(2+)products with high efficiency at Cu^(0)/Cu^(δ+)interfaces via iodine modification strategy

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Rare Metals 2024年第11期43卷 5747-5756页

作者： Shao-Song Ding Xing-Pu wang Ming-Wei Fang Rong Zhang Zi-Hao Huang Ze-Wen wang mei-ling wang Ying Zhu Wen-Xiu Jiang Xiao-Chen Feng Ying Zhu Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology School of Chemistry Beihang UniversityBeijing 100191China Beijing Advanced Innovation Center for Biomedical Engineering Beihang UniversityBeijing 100191China

Electrocatalytic CO_(2)reduction reaction(CO_(2)RR)to produce multicarbon(C_(2+))products over Cubased catalysts represents an ideal approach for renewable energy storage and carbon emissions *** Cu^(0)/Cu^(δ+)interfaces are widely recognized as crucial sites that promote C-C coupling and enhance the generation of C2+***,a major challenge arises from the tendency of Cu^(δ+)active sites within Cu^(0)/Cu^(δ+)interfaces to undergo reduction to Cu^(0)during the CO_(2)RR process,leading to a decline in catalytic ***,it is crucial to establish durable Cu^(0)/Cu^(δ+)interfaces to enhance the conversion of CO_(2)to C_(2+)*** this work,an iodine modification strategy is proposed to prepare a stable Cu@CuI composite catalyst with well-maintained Cu^(0)/Cu^(δ+)interfaces through a one-step redox reaction between iodine and *** optimized Cu@CuI-3composite catalyst demonstrates an excellent performance in CO_(2)RR,achieving a Faradaic efficiency of 75.7%for C^(2+)products and a partial current density of 288 mA·cm^(-2)at-1.57 V_(RHE)in a flow *** techniques reveal that a numerous persistent Cu^(δ+)species exist on the surface of the Cu@CuI-X composite catalyst even after CO_(2)RR due to the presence of adsorbed iodine ions,which prevent complete reduction of Cu^(δ+)species to Cu^(0)owing to their high *** functional theory calculations further verify that adsorbed iodine ions on the surface of Cu@CuI-X serve as charge regulators by adjusting local charge density,thereby facilitating the formation of*CHO intermediates from CO_(2)and lowering the energy barriers associated with coupling the*CHO and*CO intermediates during CO_(2)***,this phenomenon enhances the selectivity toward C_(2+)products during electrocatalytic CO_(2)reduction.

关键词： CO_(2)electroreduction Cu^(0)/Cu^(δ+)interfaces Multicarbon products

MoO_(3)/C-supported Pd nanoparticles as an efficient bifunctional electrocatalyst for ethanol oxidation and oxygen reduction reactions

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2023年第5期42卷 1516-1525页

作者： mei-ling wang Jin Zhao Jin-Jin wang Jun-Ming Zhang Yu-Zhu Tian Zhi-Zhu Yue Dong Li Tian-Jun Hu Jian-Feng Jia Hai-Shun Wu Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education School of Chemistry and Materials ScienceShanxi Normal UniversityTaiyuan030006China Research Institute of Materials Science Shanxi Normal UniversityTaiyuan030006China

metal oxide electronic interactions in composite electrocatalysts have a considerable impact on their catalytic *** this study,we successfully synthesized an electrocatalytic material composed of MoO_(3)/C speciessupported Pd nanoparticles(Pd-MoO_(3)/C)using a convenient hydrothermal method,which exhibited excellent catalytic activities for both ethanol oxidation and oxygen reduction in KOH *** specific activity of PdMoO_(3)/C toward ethanol oxidation with MoO_(3)loading(40wt%)was~2.6 times greater than that for the commercial Pd/C(10 wt%)with the same Pd *** particular,the activity could effectively hold up to~60%of its maximum activity after 500-cycle tests,demonstrating improved cyclical ***,the fast electron transfer kinetics toward oxygen reduction for Pd-MoO_(3)/C(40%)were also comparable to those of commercial Pt/C(20 wt%)*** superior electrochemical features are primarily derived from the stronger electronic coupling between Pd and MoO_(3)through charge transfer,which can supply more active centers and improve the anti-poisoning ***,the MoO_(3)species in the Pd-MoO_(3)/C composite may provide additional benefits in terms of electrical conductivity and dispersion.

关键词： Bifunctional electrocatalyst Ethanol oxidation reaction(EOR) metal oxide electronic interaction MoO_(3)species Oxygen reduction reaction(ORR)

Clinical and pathologic features of a distal myopathy family

在线全文

学校读者我要写书评

暂无评论

Clinical and pathologic features of a distal myopathy family

The Plights and Countermeasures in the Implementation of Distinctive Agriculture Insurance of Hebei Province

生命的分子机器及其调控网络——2012年全国生物化学与分子生物学学术大会

作者： mei-ling wang Cun-bao Li Inner Mongolia Medical University

Objective To report the clinical manifestations and pathological features in a Chinese family with distal *** Family survey,genetic map,Clinical mani-festation and pathological features of biopsied muscle specimens were summarized and analysed, We could make the primary *** The onset of disease in the proband was a 29 years old *** the age of 13 he appeared clubfoot,progressive mus-cular atrophy and weakness in the lower *** studied five generations which have 117

关键词： Distal myopathy A family study Miyoshi myopathy Clinical and pathology

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Asian Agricultural Research 2011年第3期3卷 65-69页

作者： ling mei,wang Wei-guo,wang Xue-yanAgricultural University of Hebei,Baoding 071001,China Agricultural University of Hebei

The feasibility of implementing distinctive agriculture insurance in Hebei Province is analyzed from the following aspects covering the support of policies and laws;agricultural products and brands with Hebei distinct;the rich experience of insurance companies;farmers' strong awareness on insurance and farmers' great demand on agricultural *** plights faced by distinctive agricultural insurance are pointed *** includes weak awareness of farmers on buying insurance;low enthusiasm of insurance company;poor support from the government and backward laws and regulations and so *** countermeasures on developing distinctive agricultural insurance are put *** countermeasures on improving farmers' awareness on buying insurance;innovating the insurance products and services;increasing the support from the government;perfecting the legislation on agricultural insurance should be adopted to develop agricultural insurance.

关键词： Distinctive agricultural insurance Insurance aware

T3098C and T53C Mutations of HBV Genotype C Is Associated with HBV Infection Progress

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Biomedical and Environmental Sciences 2009年第6期22卷 511-517页

作者： SU-ZHEN JIANG ZHI-YONG GAO TONG LI ,YA-JUAN LI XIANO-mei CHEN ling wang FENG-MIN LU HUI ZHUANG Department of Microbiology Peking University Health Science Center Beijing 100191 China

Objective To analyze the association between mutation（s） in preS region of HBV and hepatitis B disease progress in Chinese patients with genotype C chronic HBV infection. Methods Ninety-three patients with chronic genotype C HBV infection, including 24 asymptomatic carriers （ASC）, 26 patients with chronic hepatitis B （CHB）, 22 patients with liver cirrhosis （LC） and 21 HCC patients were investigated. Levels of HBV DNA, HBeAg, alanine aminotransferase （ALT）, asparate transaminase （AST） were measured. HBV preS region was analyzed by PCR direct sequencing. Results The prevalence of preS T3098C and T53C mutations ofgenotype C HBV was significantly higher in LC and HCC patients than ASC and CHB patients. The rate ofT3098C mutation in ASC, CHB, LC, and HCC patients were 0.00% （0/24）, 3.85% （1/26）, 9.09% （2/22）, and 30.77% （8/22）, respectively （P=0.0015）, while the rate of T53C mutation was I2.50% （3/24）, 3.85% （1/26）, 40.91% （9/22）, and 42.31% （11/26）, respectively （P=0.0012）. Conclusion The frequency of genotype C HBV preS T3098C and T53C mutations is associated with hepatitis B infection progression.

关键词： Hepatitis B virus (HBV) Genotype C pre S Mutation Hepatocellular carcinoma (HCC)

Diagnostic Values of Vascular Endothelial Growth Factor and Epidermal Growth Factor Receptor for Benign and Malignant Hydrothorax

在线全文

学校读者我要写书评

暂无评论

Chinese Medical Journal 2015年第3期128卷 305-309页

作者： Yan Gu Min Zhang Guo-Hua Li Jun-Zhen Gao Liping Guo Xiao-Juan Qiao Li-Hong wang Lan He mei-ling wang Li Yan Xiu-Hua Fu Department of Respiratory Medicine Affiliated Hospital of Inner Mongolia Medical University Hohhot Inner Mongolia 010059 China Health Center Affiliated Hospital of Inner Mongolia Medical University Hohhot Inner Mongolia 010059 China

Background： Hydrothorax, as one of the common complications of malignant tumors, still cannot be sensitively detected in clinical practice, thus requiring a sensitive, specific method for diagnosis. The aim of this study was to analyze the correlation between levels of vascular endothelial growth factor （VEGF） and epidermal growth factor receptor （EGFR） in patients with benign and malignant hydrothorax. Methods： The contents of VEGF in the pleural effusion and serum of the patients with malignant pleural effusion （n = 35） and benign pleural effusion （n = 30） were detected by double antibody sandwich enzyme linked immunosorbent assay. The gene copy number level of EGFR in pleural effusion was detected by fluorescence in situ hybridization （FISH）. The points with the highest sensitivity and specificity were selected as the critical values to calculate the diagnostic value of the VEGF in pleural effusion and serum, and EGFR gene copy number in pleural effusion. Results： The contents of VEGF in pleural effusion and serum of patients with malignant hydrothorax were （384.91 ± 120.18）, and （129.62 ±46.35） ng/L, respectively, which were significantly higher than those of the patients with benign hydrothorax （207.97 ± 64.04）, （63.49 ± 24.58） ng/L （P 〈 0.01 ）. The sensitivity and specificity of detecting VEGF in pleural effusion were 80.0% and 96.7% （the boundary value was 297.06 ng/L）, respectively for diagnosing benign and malignant hydrothorax. The sensitivity and specificity of serum were 74.3% and 96.7%, respectively （the boundary value was 99.21 ng/L） for diagnosing benign and malignant hydrothorax. The diagnostic efficiencies of EGFR and VEGF in hydrothorax were similar. There was a significant correlation between EGFR and VEGF in hydrothorax （P 〈 0.01 ）. Conclusions： VEGF and EGFR play important roles in the formation of pleural effusion. VEGF differed significantly in benign and malignant pleural effusions, which contributed to differential diagnosis results of benig

关键词： Enzyme-linked hnmunosorbent Assay Epidermal Growth Factor Receptor Fluorescence In Situ Hybridization Hydrothorax Vascular Endothelial Growth Factor