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嵌入式图形系统设计助力救生机器人蜘蛛

今日电子 2008年第11期 43-44页

作者： pom yuan lam Marco Schmid Anders Frederiksen 新加坡南洋理工学院施密德工程公司 Analog Devices公司

本文介绍了如何利用嵌入式图形系统设计救生机器人蜘蛛。现已成功完成功能强大且性能优异的机器人的构建，而且，通过采用用于Blackfin处理器的LabVIEW嵌入式模块所提供的图形化编程环境，以及Blackfin处理器的高处理器性能，开发周期... 详细信息

本文介绍了如何利用嵌入式图形系统设计救生机器人蜘蛛。现已成功完成功能强大且性能优异的机器人的构建，而且，通过采用用于Blackfin处理器的LabVIEW嵌入式模块所提供的图形化编程环境，以及Blackfin处理器的高处理器性能，开发周期也大为缩短。

关键词：救生机器人嵌入式模块图形系统 Blackfin处理器蜘蛛设计 LabVIEW 性能优异

Artificial intelligence-driven radiomics study in cancer:the role of feature engineering and modeling

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Military Medical Research 2024年第1期11卷 115-147页

作者： yuan-Peng Zhang Xin-Yun Zhang Yu-Ting Cheng Bing Li Xin-Zhi Teng Jiang Zhang Saikit lam Ta Zhou Zong-Rui Ma Jia-Bao Sheng Victor CWTam Shara WYLee Hong Ge Jing Cai Department of Medical Informatics Nantong UniversityNantong 226001JiangsuChina Department of Health Technology and Informatics the Hong Kong Polytechnic UniversityHong Kong 999077China The Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen 518000GuangdongChina Department of Radiation Oncology the Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer HospitalZhengzhou 450008China

Modern medicine is reliant on various medical imaging technologies for non-invasively observing patients’***,the interpretation of medical images can be highly subjective and dependent on the expertise of ***,some potentially useful quantitative information in medical images,especially that which is not visible to the naked eye,is often ignored during clinical *** contrast,radiomics performs high-throughput feature extraction from medical images,which enables quantitative analysis of medical images and prediction of various clinical *** have reported that radiomics exhibits promising performance in diagnosis and predicting treatment responses and prognosis,demonstrating its potential to be a non-invasive auxiliary tool for personalized ***,radiomics remains in a developmental phase as numerous technical challenges have yet to be solved,especially in feature engineering and statistical *** this review,we introduce the current utility of radiomics by summarizing research on its application in the diagnosis,prognosis,and prediction of treatment responses in patients with *** focus on machine learning approaches,for feature extraction and selection during feature engineering and for imbalanced datasets and multi-modality fusion during statistical ***,we introduce the stability,reproducibility,and interpretability of features,and the generalizability and interpretability of ***,we offer possible solutions to current challenges in radiomics research.

关键词： Artificial intelligence Radiomics Feature extraction Feature selection Modeling Interpretability Multimodalities Head and neck cancer

All-sky Guide Star Catalog for CSST

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Research in Astronomy and Astrophysics 2024年第4期24卷 35-59页

作者： Hui-Mei Feng Zi-Huang Cao Man I lam Ran Li Hao Tian Da-Yi Yin yuan-Yu Yang Xin Zhang Dong-Wei Fan Yi-Qiao Dong Xin-Feng Li Wei Wang Long Li Hugh RAJones Yi-Han Tao Jia-Lu Nie Pei-Pei Wang Mao-yuan Liu He-jun Yang Chao Liu Key Laboratory of Cosmic Rays(Tibet University) Ministry of EducationLhasa 850000China Institute for Frontiers in Astronomy and Astrophysics Beijing Normal UniversityBeijing 102206China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China University of ChineseAcademy of Sciences Beijing 100049China Shanghai Institute of Technical Physics Chinese Academy of SciencesShanghai200083China Technology and Engineering Center for Space Utilization.Chinese Academy of Sciences Beijing 100094China Changchun Institute of Optics Fine Mechanics and PhysicsChinese Academy of SciencesChangchun 130033China Centre for Astrophysics University of HertfordshireHatfieldUK Beijing University of Technology Beijing 100124China

The China Space Station Telescope(CSST)is a two-meter space telescope with multiple back-end *** Fine Guidance Sensor(FGS)is an essential subsystem of the CSST Precision Image Stability System to ensure the required absolute pointing accuracy and line-of-sight *** this study,we construct the Main Guide Star Catalog for *** accomplish this,we utilize the information about the FGS and object information from the Gaia Data Release *** provide an FGS instrument magnitude and exclude variables,binaries,and high proper motion stars from the catalog to ensure uniform FGS guidance ***,we generate a HEALPix index,which provides a hierarchical tessellation of the celestial sphere,and employ the Voronoi algorithm to achieve a homogeneous distribution of stars across the *** distribution ensures adequate coverage and sampling of the *** performance of the CSST guide star catalog was assessed by simulating the field of view of the FGS according to the CSST mock survey strategy *** analysis of the results indicates that this catalog provides adequate coverage and *** catalog's performance meets the FGS requirements,ensuring the functioning of the FGS and its guidance capabilities.

关键词： catalogs astrometry instrumentation:detectors

Synergic catalysis of W and Ni originating from substitution of trivacant phosphotungstate for the selective oxidation of aniline to azoxybenzene

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Chinese Chemical Letters 2024年第2期35卷 558-563页

作者： Sheng Cai Xiao-yuan Wu Weiming Wu Sa-Sa Wang Can-Zhong Lu CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China College of Chemistry and Materials Science Fujian Normal UniversityFuzhou 350117China Xiamen Institute of Rare Earth Materials Chinese Academy of SciencesXiamen 361021China University of Chinese Academy of Sciences Beijing 100049China

Partial substitution of polyoxometalate(pom)is an efficient route to modulate the catalytic property of maternal *** this work,a new Keggin type pom involving{Ni 6}cluster,{[Ni(H_(2)O)_(2)(Dach)_(2)][Ni(Dach)_(2)]_(2)}{[Ni_(6)Cl(μ-OH)_(3)(H_(2)O)(Dach)_(3)(WO_(4))(PW9 O_(3)_(4))][Ni_(6)(μ-OH)_(3)(H_(2)O)_(2)(Dach)_(3)(WO_(4))(PW9 O_(3)_(4))]}Cl·27H_(2)O,(1,Dach=1,2-diaminocyclohexane)was *** 1 shows excellent catalytic performance in the selective oxidation of aniline to azoxybenzene(AOB)in *** apparently different results from that with the matrix{PW_(9)O_(34)}({PW9})suggest the successful regulation of the catalytic property of{PW9}by the introduction of the{Ni6}cluster into the *** experimental results indicate that the highlighted performance of 1 is contributed by the synergy of W and Ni sites,which are respectively responsible for the oxidation and condensation steps in the production of *** good selectivity to AOB is essentially attributed to the effective modulation of the reaction rates of oxidation and condensation steps by W and Ni sites,respectively.

关键词： Polyoxometalate {Ni_(6)}cluster Modulated catalytic property Aniline oxidation Azoxybenzene

社区居家老年人跌倒经历的体验:质性研究的meta整合

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International Journal of Nursing Sciences 2024年第2期11卷 276-285页

作者：江慧悯袁浩斌 Stephen TEE 林爱贞 Faculty of Health Sciences and Sports Macao Polytechnic UniversityMacaoChina Faculty of Health and Social Sciences Bournemouth UniversityBournemouthEnglandUK

目的系统评价和整合社区居家老年人跌倒经历的看法与体验,为后续发展跌倒预防及管理的干预提供信息,为健康照护实践提供建议。方法依据乔安娜布里格斯研究所(Joanna Briggs Institute,JBI)质性系统评价方法论进行质性研究meta整合,在Pub... 详细信息

目的系统评价和整合社区居家老年人跌倒经历的看法与体验,为后续发展跌倒预防及管理的干预提供信息,为健康照护实践提供建议。方法依据乔安娜布里格斯研究所(Joanna Briggs Institute,JBI)质性系统评价方法论进行质性研究meta整合,在PubMed、CINAHL、PsycInfo、Embase、Web of science等数据库进行检索,发表时间限定为2010年1月至2023年5月,仅纳入经同行评审的英文文献。使用JBI质性研究质量评价标准评价纳入文献的方法学质量,按照ConQual评分准则检验整合结果的信度。本综述方案已在PROSPERO注册(CRD 42023421789)。结果共纳入10项研究,方法学质量评价得分为60%至90%。提炼59个完好明确的结果,将相似结果归纳组合形成7个类别,并综合成3个整合结果,在ConQual评分上,综合结果2评为中等,综合结果1和3评为低等。整合结果1:跌倒后老年人经历了身体的损伤和疼痛、日常活动受限、社交受限、独立性降低或丧失、并有恐惧和无助感。整合结果2:经历跌倒后,老年人反思跌倒的原因,并识别、解释风险因素。整合结果3:老年人对跌倒原因和后果有正面和负面的看法,其采取的应对跌倒的措施包括使用辅助器具、纠正风险因素、寻求医疗帮助、关注身体和心理状况等。结论医疗卫生提供者应重视老年人跌倒后的感受、经历,以及对跌倒原因和影响的反思,进行特定的干预。今后还需要进行纵向研究,以检测跌倒对老年人的长期影响,深入了解他们的反思、感知、态度和预防行为随时间的改变情况。

关键词：老年人社区经历跌倒观点系统综述

The role of glutathione-mediated triacylglycerol synthesis in the response to ultra-high cadmium stress in Auxenochlorella protothecoides

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Journal of Environmental Sciences 2021年第10期33卷 58-69页

作者： Chao Xing Jinyu Li Sin Man lam Hongli yuan Guanghou Shui Jinshui Yang State Key Laboratory of Agrobiotechnology and Key Laboratory of Soil Microbiology Ministry of AgricultureCollege of Biological SciencesChina Agricultural UniversityBeijing 100193China State Key Laboratory of Molecular Developmental Biology Institute of Genetics and Developmental BiologyChinese Academy of SciencesBeijing 100101China Lipidall Technologies Company Limited Changzhou 213022China

Under ultra-high cadmium(Cd)stress,large amounts of glutathione are produced in Auxenochlorella protothecoides UTEX 2341,and the lipid content increases *** is the best reductant that can effectively remove Cd,but the relationship between lipid accumulation and the cellular response to Cd stress has not been *** analyses of the transcriptomes and lipidomes,the mechanism of lipid accumulation to Cd tolerance were studied from the perspectives of metabolism,transcriptional regulation and protein *** Cd stress,basic metabolic pathways,such as purine metabolism,translation and pre-m RNA splicing process,were inhibited,while the lipid accumulation pathway was significantly *** analysis revealed that the transcription factors(TFs)and genes related to lipid accumulation were also *** of the TF interaction sites showed that ABI5,MYBrel and NF-YB could further regulate the expression of diacylglycerol acyltransferase through glutathionylation/deglutathionylation,which led to increase of the triacylglycerol(TAG)*** analysis showed that TAG could help maintain lipid homeostasis by adjusting its saturation/unsaturation *** study for the first time indicated that glutathione could activate TAG synthesis in microalga ***,leading to TAG accumulation and glutathione accumulation under Cd ***,the accumulation of TAG and glutathione can confer resistance to high Cd *** study provided insights into a new operation mode of TAG accumulation under heavy metal stress.

关键词： Cd stress Microalgae Glutathionylation Transcription factors Triacylglycerol

Analysis and behaviour of FRP-confined short concrete columns subjected to eccentric loading

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2008年第1期9卷 38-49页

作者： Xing-fei yuan Shao-hua XIA L. lam S.T. SMITH Department of Civil Engineering Zhejiang University Hangzhou 310027 China School of Civil and Environmental Engineering The University of Adelaide Adelaide SA 5005 Australia Department of Civil and Structural Engineering The Hong Kong Polytechnic University Hong Kong China Department of Civil Engineering Hong Kong University Hong Kong China

Fibre-reinforced polymer (FRP) composites were widely utilized in civil engineering structures as the retrofit of reinforced concrete (RC) columns. To design FRP jackets safely and economically, the behaviour of such columns should be predicted first. This paper is concerned with the analysis and behaviour of FRP-confined RC circular and rectangular short col- umns subjected to eccentric loading. A simple design-oriented stress-strain model for FRP-confined concrete in a section analysis was first proposed. The accuracy was then proved by two test data. Following that, a parametric study including amount of FRP confinement, FRP strain capacity, unconfined concrete strength and shape of column section is provided. Some conclusions were obtained at the end of the paper. The work here will provide a comprehensive understanding of the behaviour of FRP-confined concrete columns. The simplicity of the model also enables a simple equivalent stress block to be developed for direct use in practical design.

关键词： Column FRP confinement Stress-strain model Section analysis Strength Ductility

Targeting mesenchymal stem cell therapy for severe pneumonia patients

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World Journal of Stem Cells 2021年第2期13卷 139-154页

作者： Guy lam yuan Zhou Jia-Xian Wang Yat-Ping Tsui School of Biomedical Sciences University of Hong KongHong Kong 999077China Research and Development Help Therapeutics Co.Ltd.Nanjing 211100Jiangsu ProvinceChina

Pneumonia is the inflammation of the lungs and it is the world’s leading cause of death for children under 5 years of *** latest coronavirus disease 2019(COVID-19)virus is a prominent culprit to severe *** the pandemic running rampant for the past year,more than 1590000 deaths has occurred worldwide up to December 2020 and are substantially attributable to severe pneumonia and induced cytokine *** therapeutic approaches in addition to the vaccines and drugs under development are hence greatly sought *** harnessing stem cells and their derivatives have been established by basic research for their versatile capacity to specifically inhibit inflammation due to pneumonia and prevent alveolar/pulmonary fibrosis while enhancing antibacterial/antiviral immunity,thus significantly alleviating the severe clinical conditions of *** recent clinical trials,mesenchymal stem cells have shown effectiveness in reducing COVID-19-associated pneumonia morbidity and mortality;positioning these cells as worthy candidates for combating one of the greatest challenges of our time and shedding light on their prospects as a nextgeneration therapy to counter future challenges.

关键词： Pneumonia Human mesenchymal stem cells Immunomodulation Alveolar protection Pandemic challenge Clinical trials

1-((12-Bromododecyl)oxy)-4-((4-(4-pentylcyclohexyl)phenyl)ethynyl) benzene: Liquid crystal with aggregation-induced emission characteristics

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Science China Chemistry 2013年第9期56卷 1191-1196页

作者： CHEN YaFei LIN JieSheng yuan WangZhang YU ZhenQiang lam Jacky WingYip TANG Ben Zhong Shenzhen Key Laboratory of Functional Polymers School of Chemistry and Chemical EngineeringShenzhen University National Institutes for Food and Drug Control School of Chemistry and Chemical engineering Shanghai Jiao Tong University Department of Chemistry The Hong Kong University of Science & Technology

The luminescent liquid crystals (LLCs) are expected to solve the conflicts between the aggregation caused quenching and the requirement of aggregation or self-organization for LCs. Herein, we developed a new strategy of applying aggregation-induced emission (AIE) phenomenon to the molecular design of LCs towards LLCs. In this report, a calamitic liquid crystal based on tolane with AIE characteristics was successfully synthesized and the chemical structure was characterized by 1H, 13C NMR, and matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) high-resolution mass spectra. The fluorescence behavior was studied by fluorescence spectroscopy and the liquid crystal phase behaviors were investigated by differential scanning calorimetry (DSC), polarized optical microscopy (pom). The crystal structure was obtained by X-ray diffraction crystallography with P1 space group. Results demonstrated that the sample was AIE active and the LC phases sequence during cooling was nematic, smectic C and smectic B phase.

关键词： aggregation-induced emission tolane liquid crystal phase behavior