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ibliometric research on the development of climate change in the BRI regions

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Advances in Climate Change Research 2021年第2期12卷 254-262页

作者： TAN Xian-Chun ZHU Kai-Wei sun yu-Ling ZHAO Wan-yu CHEN Fangc Institutes of Science and Development Chinese Academy of SciencesBeijing100190China School of Public Policy and Management University of Chinese Academy of SciencesBeijing100190China National Science Library Chinese Academy of SciencesBeijing100190China Department of Library Information and Archives Management University of Chinese Academy of ScienceBeijing100190China

Climate change is one of the great global *** clarify the research status of climate change in the Belt and Road Initiative(BRI)regions,the BRI countries can better deal with climate *** study aims to improve our understanding of the status and trends of researchon climate change in the BRI *** on keywords associated with the BRI and climate change,we undertake bibliometric research bycollecting 21,225 related SCI/SSCI articles published during *** and analysis revealed the topics and hotspots of research on BRI and climate *** findings are ***,although the number of published articles exhibited a rapidly growing trend,theirdistribution is extremely *** were mainly published by institutions from USA,UK,China,India,and Germany,while individualcontributions from most BRI countries was less than 1%of the publication ***,existing studies focused on climate change impactson BRI countries,in addition,climate mitigation and adaptation in BRI regions,especially the assessment of climate change risks and measuresand policies in response to climate change,was less watched in the ***,not all BRI regions have been examined by *** Africa,South Asia,and West Asia and North Africa are hotspots,while the Pacific and Central Asia are largely *** the future,BRI countries need to improve their research ability on climate change and more attention should be paid to the field of climate mitigation,especially on the assessment of climate change risks,measures,and policies,and BRI countries in the Oceania and Central Asia regions.

关键词： Belt and road initiative Climate change Development trends Bibliometrics

Development of a database system for operational use in the selection of titanium alloys

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International Journal of Minerals,Metallurgy and Materials 2011年第4期18卷 444-449页

作者： yuan-fei Han Wei-dong Zeng yu sun Yong-qing Zhao State Key Laboratory of Solidification Processing Northwestern Polytechnical University Xi＇an 710072 China Northwest Institute for Nonferrous Metal Research Xi＇an 710016 China

The selection of titanium alloys has become a complex decision-making task due to the growing number of creation and utilization for titanium alloys,with each having its own characteristics,advantages,and *** choosing the most appropriate titanium alloys,it is very essential to offer a reasonable and intelligent service for technical *** possible solution of this problem is to develop a database system（DS） to help retrieve rational proposals from different databases and information sources and analyze them to provide useful and explicit *** this purpose,a design strategy of the fuzzy set theory is proposed,and a distributed database system is *** ranking of the candidate titanium alloys,the most suitable material is *** is found that the selection results are in good agreement with the practical situation.

关键词： titanium alloys database system fuzzy set theory evaluation

Safety threshold of high-speed railway pier settlement based on train-track-bridge dynamic interaction

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Science China(Technological Sciences) 2015年第2期58卷 202-210页

作者： CHEN Zhao Wei ZHAI Wan Ming CAI Cheng Biao sun yu State Key Laboratory of Traction Power Southwest Jiaotong University

This paper presents a method to determine the safety threshold of bridge pier settlement in high-speed *** analytical expression of the mapping relationship between the pier settlement and the rail deformation is derived theoretically for the double block ballastless track-bridge *** adopting the superposition of the track random irregularity and the rail deformation caused by the pier settlement as the excitation inputs,the variations of vehicle dynamics indices with pier settlement are comparatively ***,the safety threshold of the bridge pier settlement is obtained according to the limit of vehicle running safety and ride comfort indices of the high-speed *** show that the dynamics indices of different trains have different sensitivities to the pier settlement,and the train CRH2C is the most sensitive one among all the types of Chinese high-speed *** passing through the bridges in common span with pier settlement at the speed of 250–350 km/h,the trains suffer the low-frequency excitations,and the vertical acceleration of car body is most sensitive to the pier settlement of all the dynamics *** the car body vertical acceleration just exceeds the allowable limit,the critical settlement value is 23.4 mm,which is much bigger than the pier differential settlement limit in the current code for Chinese high-speed railways.

关键词： high-speed railway pier settlement safety threshold dynamic characteristics train-track-bridge dynamic interaction

Large carotid body tumor successfully resected in hybrid operating theatre: A case report

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World Journal of Clinical Cases 2019年第16期7卷 2346-2351页

作者： Meng-Qi Li Yan Zhao Huai-yu sun Xin-yu Yang Department of Neurosurgery Tianjin Medical University General HospitalTianjin 300052China Department of Neurosurgery TieMei General Hospital of Liaoning Health Company Affiliated Shenyang Medical CollegeTieling 112000Liaoning ProvinceChina

BACKGROUND Surgical treatment for large carotid body tumor (CBT),particularly the Shamblin III type,is challenging and rarely *** SUMMARY In July 2014,a 63-year-old woman presented to our hospital with a large CBT (130 mm × 60 mm × 70 mm).The lesion was hypervascular,spanned from the first to the seventh cervical vertebra,and adhered to the right common carotid artery (CCA),internal carotid artery (ICA) and external carotid artery (ECA).The resection was carried out in a hybrid operating ***,we used Onyx gel to embolize the feeding *** ICA balloon was used to prevent gel entry into the *** shrinkage and hardening of the CBT,we quickly resected the CBT as well as a part of the ECA that adhered to the CBT.A vascular shunt was inserted between CCA and ICA,and the part where the ICA was cut off from the CCA was directly sutured.A follow-up at four years later showed no neurological *** For large hypervascular CBT,embolization of the feeding artery prior to resection is *** hybrid operating theatre is the ideal platform to carry out such operations.

关键词： Carotid body tumor Paraganglioma Hybrid operating theatre Interventional embolization Case report

The influences of silane coupling agents on the heat and moisture resistance of basalt fibre-reinforced composites

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High Voltage 2023年第1期8卷 38-47页

作者： yunpeng Liu Mingjia Zhang Hechen Liu yu sun Wanxian Wang Jie Liu Hebei Provincial Key Laboratory of Power Transmission Equipment Security Defence North China Electric Power UniversityBaodingChina State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power UniversityBaodingChina State Grid Hebei Electric Power Company Electric Power Research Institute ShijiazhuangChina

Basalt fibre composite materials have shown good application prospects in electrical equipment,but their reliability can be affected by damp-heat *** this work,the interface,mechanical,and electrical properties of basalt fibre composites treated with three coupling agents via damp-heat ageing were *** simulations were conducted to reveal the damp-heat ageing mechanism of the *** results show thatγ-aminopropyl triethoxy silane(KH-550)andγ-glycidoxy propyl trimethoxy silane(KH-560)perform better as coupling agents as they form bonds with the matrix resin,compared withγ-methacryloxy propyl trimethoxy silane(KH-570).After the dampheat ageing treatment,the hydrolysis of the defects of the amino groups in the interface of the KH-550-treated sample can weaken its mechanical properties and insulation properties *** interface layer of the KH-560-treated sample is mostly composed of carbon–oxygen single bonds and methylene groups with its interface structure more stable,which endows the sample with better stability of its mechanical and insulating ***,KH-560 is a more suitable coupling agent for processing basalt fibres to be used in electrical equipment.

关键词： composites coupling fibre

Effects of Nectar Property on Compensated Dipping Behavior of Honey Bees with Damaged Tongues

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Journal of Bionic Engineering 2021年第5期18卷 1225-1234页

作者： Jingrui Wang yu sun Wei Zhang yunqiang Yang Shaoze Yan Jianing Wu School of Engineering and Technology China University of Geosciences(Beijing)Beijing 100083China School of Aeronautics and Astronautics Sun Yat-Sen UniversityGuangzhou 510006China Division of Intelligent and Biomechanical Systems State Key Laboratory of TribologyDepartment of Mechanical EngineeringTsinghua UniversityBeijing 100084China

In nature,bees with damaged tongues are adapted to have a feat in collecting nectariferous sources in a large spectrum of concentrations(19%-69%)or viscosities(10^(-3)Pa·s to 10^(-1)Pa·s);however,eff ects of nectar property on compensated dipping behavior remain *** the bee tongue anatomy,high-speed videography,and mathematical models,we investigate responses of honey bees with damaged tongues to fluidic sources in various *** find that,bees with 80%damaged tongues are deprived of feeding capability and remarkably,the dipping frequency increases from 4.24 Hz to 5.08 Hz while ingesting 25%sugar water when the tongue loses 0-30%in length,while declines from 5.08 to 3.86 Hz in case of 30%damaged tongue when sucrose concentration increases from 25%to 45%.We employ the energetic compensation rate and energetic utilization rate to evaluate eff ectiveness of the compensation from the perspective of energetic *** mathematical model indicates that the energetic compensation rate turns higher in bees with less damaged tongues for ingesting dilute sugar water,demonstrating its capability of functional compensation for combined ***,the tongue-damaged bees achieve the highest energetic utilization rate when ingesting~30%sugar *** biology,the findings may shed lights on biomimetic materials and technologies that aim to compensate for geometrical degradations without regeneration.

关键词： Honey bee Damaged tongue Nectar property Fluid transport Functional compensation

Photochemical and electrochemical strategies in C-F bond activation and functionalization

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Organic Chemistry Frontiers 2022年第3期9卷 853-873页

作者： Zhanghong Wang yu sun Liu-yu Shen Wen-Chao Yang Fei Meng Pinhua Li College of Eco-Environmental Engineering Guizhou Minzu UniversityGuiyang 550025PR China School of Horticulture and Plant Protection Yangzhou UniversityYangzhou 225009P.R.China Anhui Laboratory of Clean Catalytic Engineering Anhui Laboratory of Functional Complexes for Materials Chemistry and ApplicationCollege of Chemical and Environmental EngineeringAnhui Polytechnic UniversityWuhuAnhui 241000P.R.of China

The activation and functionalization of C-F bonds under mild conditions can serve as an important tool for organic syntheses including the modification of pharmaceuticals and agrochemicals and the synthesis of value-a... 详细信息

关键词： bonds activation functionalization

Amorphous Structure and Bonding Chemistry of Aluminium Antimonide（AISb） Alloy for Phase-change Memory Device

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Chemical Research in Chinese Universities 2016年第1期32卷 76-81页

作者： sun yu WANG Xuepeng DU Jiaren CHEN Nianke yu Hongmei WU Qi MENG Xing State Key Laboratory on Integrated Optoelectronics College of Electronic Science and Engineering College of Computer Science and Technology College of Physics Jilin University Changchun 130012 P. R. China

With the help of first-principles molecular dynamics calculations, we obtained the atomic picture of amorphous A1Sb（a-A1Sb） for phase-change memory application. Generally, a-A1Sb shows sp3 bonding network, which is the intrinsic characteristic for its good thermal stability. Significant wrong（homogenous） AI-AI bonds can also be observed from the pair correlation function. This hints the amorphous phase may consist of A1 cluster and Sb-rich A1-Sb alloy. Recent experiment has observed the Sb-rich region of AISb alloy can be switched to crystal, on the basis of which, combined with our calculations, we thus propose that on the one hand such a Sb-rich region in a-A1Sb can retain the rapid crystallization like pure Sb solid and on the other hand some AI atoms play the important role of stabilizing Sb rich network with sp3 bonding. The present study offers a microscopic view to understand the phase change mechanism of AlSb alloy for information storage device.

关键词： AISb alloy Amorphous phase Phase-change memory device Ab initio calculation

Favorable response to immunotherapy in a pancreatic neuroendocrine tumor with temozolomide-induced high tumor mutational burden

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Cancer Communications 2020年第12期40卷 746-751页

作者： Yanshuo Cao yutong Ma Jiangyuan yu yu sun Tingting sun Yang Shao Jie Li Lin Shen Ming Lu Department of Gastrointestinal Oncology Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education/Beijing)Peking University Cancer Hospital&InstituteBeijing 100142P.R.China Translational Medicine Research Institute Geneseeq Technology Inc.Toronto M5T1K5Canada Department of Nuclear Medicine Peking University Cancer Hospital&InstituteKey Laboratory of Carcinogenesis and Translational Research(Ministry of Education/Beijing)Beijing 100142P.R.China Department of Pathology Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education/Beijing)Peking University Cancer Hospital&InstituteBeijing 100142P.R.China Nanjing Geneseeq Technology Inc. NanjingJiangsu 210032P.R.China School of Public Health Nanjing Medical UniversityNanjingJiangsu 210029P.R.China Department of Early Drug Development Center Peking University Cancer Hospital&InstituteKey Laboratory of Carcinogenesis and Translational Research(Ministry of Education/Beijing)Beijing 100142P.R.China

Neuroendocrine neoplasm of the pancreas is a rare tumor with limited treatment *** such tumors,treatment for pancreatic neuroendocrine tumor(PanNET)G3 is the most ***(TMZ)is commonly used to treat ***,TMZ may cause tumor gene alkylation,which induces drug resistance and rapid disease ***,we present a case of a female who was diagnosed with PanNET G3 and achieved a partial response to toripalimab,an anti-programmed cell death-ligand 1(anti-PD-L1)monoclonal antibody,after multiple cycles of TMZ *** profiling revealed that compared with the patient’s samples collected at baseline,the postTMZ-treatment samples had markedly higher levels of tumor mutational burden(TMB)associated with characteristic alkylating mutational signature representing a positive correlation with favorable response to anti-PD-1 *** addition,we observed a germline truncating mutation of MUTYH(W156*)that was considered to be pathogenic and potentially conferred to genomic *** case suggests that anti-PD-1 therapy could be a treatment option for PanNET patients with increased TMB after TMZ-based treatment.

关键词： gene expression profiling mutational signature neuroendocrine tumors programmed cell death 1 receptor temozolomide tumor mutational burden