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Low fabrication cost wavelength tunable WG-FP hybrid-cavity laser working over 1.7μm

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Journal of Semiconductors 2022年第6期43卷 29-33页

作者： Fangyuan Meng Hongyan Yu Xuliang Zhou Mengqi wang Yejin Zhang wenyu Yang Jiaoqing Pan Key Laboratory of Semiconductor Materials Science Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices Beijing 100083China

A wide wavelength tuning range and single-mode hybrid cavity laser consists of a square Whispering-Gallery(WG)microcavity and a Fabry–Pérot(FP)was introduced and demonstrated.A wavelength tuning range over 12.5 nm from 1760.87 to 1773.39 nm which was single-mode emitting was obtained with the side-mode suppression ratio over 30 dB.The hybrid cavity laser does not need grating etching and special epitaxial structure,which reduces the fabrication difficulty and cost,and shows the potential for gas sensing with absorption lines in this range.

关键词： wavelength tunable hybrid cavity laser Whispering-Gallery microcavity gas sensing

Light absorption properties and potential sources of brown carbon in Fenwei Plain during winter 2018–2019

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Journal of Environmental Sciences 2021年第4期33卷 53-63页

作者： wenyu Zhang Weigang wang Jie Li Shuangliang Ma Chaofan Lian Kun Li Bo Shi Mingyuan Liu Yanyu Li QingQing wang Yele Sun Shengrui Tong Maofa Ge State Key Laboratory for Structural Chemistry of Unstable and Stable Species Beijing National Laboratory for Molecular Sciences(BNLMS)Chemistry Academy of Sciences Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Henan Environmental Monitoring Center Station Zhengzhou 450000China Laboratory of Atmospheric Chemistry Paul Scherrer Institute(PSI)Villigen 5232Switzerland Center for Excellence in Regional Atmospheric Environment Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China Department of Clinical Research Central Hospital Affiliated to Shandong First Medical UniversityJinan 250013China

A distinctive kind of organic carbon aerosol that could absorb ultraviolet-visible radiation is called brown carbon(Br C),which has an important positive influence on radiative budget and climate change.In this work,we reported the absorption properties and potential source of Br C based on a seven-wavelength aethalometer in the winter of 2018–2019 at an urban site of Sanmenxia in Fenwei Plain in central China.Specifically,the mean value of Br C absorption coefficient was 59.6±36.0 Mm^(-1) at 370 nm and contributed 37.7%to total absorption,which made a significant impact on visibility and regional environment.Absorption coefficients of Br C showed double-peak pattern,and Br C had shown small fluctuations under haze days compared with clean days.As for the sources of Br C,Br C absorption coefficients expressed strong correlations with element carbon aerosols and primary organic carbon aerosols,indicating that most of Br C originated from primary emissions.The linear correlations between trace metal elements(K,As,Fe,Mn,Zn,and Pb)and Br C absorption coefficients further referred that the major sources of Br C were primary emissions,like coal burning,biomass burning,and vehicle emissions.The moderate relationship between Br C absorption coefficients and secondary organic aerosols suggested that secondary production of Br C also played an important role.The 120 hr backward air mass trajectories analysis and concentration-weighted trajectories analysis were also used to investigate potential sources of Br C in and around this area,which inferred most parts of Br C were derived from local emissions.

关键词： Brown carbon Light absorption Potential source analysis Fenwei Plain

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住宅地下室工程优化设计分析

上海建设科技 2022年第6期 30-32页

作者：王文彧上海沪闵建筑设计院有限公司

地下工程受多方面因素限制,其设计比较复杂。介绍了上海某保障性住房地下室工程设计的目标,探讨了住宅地下室设计的基本原则,就非机动车库及机动车库的设计重点分别进行详细分析。在满足规范要求的基础上,力求设计出方便居民需求的住宅... 详细信息

地下工程受多方面因素限制,其设计比较复杂。介绍了上海某保障性住房地下室工程设计的目标,探讨了住宅地下室设计的基本原则,就非机动车库及机动车库的设计重点分别进行详细分析。在满足规范要求的基础上,力求设计出方便居民需求的住宅地下室。

关键词：住宅地下室地下车库

Long-term winter observation of nitrous acid in the urban area of Beijing

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Journal of Environmental Sciences 2022年第4期34卷 334-342页

作者： Chaofan Lian Weigang wang Yan Chen Yusheng Zhang Jingwei Zhang Yongchun Liu Xiaolong Fan Chang Li Junlei Zhan Zhuohui Lin Chenjie Hua wenyu Zhang Mingyuan Liu Junling Li Xuefei wang Junling An Maofa Ge State Key Laboratory for Structural Chemistry of Unstable and Stable Species CAS Research/Education Center for Excellence in Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing 100190China University of the Chinese Academy of Sciences Beijing 100049China Aerosol and Haze Laboratory Advanced Innovation Center for Soft Matter Science and EngineeringBeijing University of Chemical TechnologyBeijing100029China State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry(LAPC) Institute of Atmospheric Physics(IAP)Chinese Academy of SciencesBeijing 100029China State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China Center for Excellence in Urban Atmospheric Environment Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China

The particulate matter(PM)pollution has been significantly improved by carrying out various valid emission control strategies since 2013 in China.Meanwhile the variation trend of nitrous acid(HONO)is worthy to investigate due to its vital role in the atmospheric oxidation process.In this study,field observation in the winter is conducted to investigate the concentration of HONO in an urban area of Beijing.In the winter of 2019,the mean HONO concentration is 1.38 ppbV during the whole winter.Photo-enhanced NO_(2)heterogeneous reactions on the ground and aerosol surfaces were found as the possible daytime sources of HONO.Compared to O_(3),photolysis of HONO dominates the primary OH sources during the winter time.To understand the HONO pollution patterns by years variation,multi-year data is summarized and finds that primary pollutants including CO and NO decreased,but secondary pollutants i.e.,HONO(mostly generated via secondary process)increased.Our study highlights the requirement to mitigate secondary pollution by control HONO concentration.

关键词： Nitrous acid Field observation Winter air pollution

Additively manufactured biodegradable porous magnesium implants for elimination of implant-related infections:An in vitro and in vivo study

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Bioactive Materials 2022年第2期7卷 140-152页

作者： Kai Xie Nanqing wang Yu Guo Shuang Zhao Jia Tan Lei wang Guoyuan Li Junxiang Wu Yangzi Yang wenyu Xu Juan Chen Wenbo Jiang Penghuai Fu Yongqiang Hao Shanghai Key Laboratory of Orthopaedic Implants Department of Orthopaedic SurgeryShanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineShanghai200011China National Engineering Research Center of Light Alloy Net Forming&State Key Laboratory of Metal Matrix Composite Shanghai Jiao Tong UniversityShanghai200240China Musculoskeletal Tumor Center Peking University People’s Hospital100044BeijingChina Department of Orthopedics The First Affiliated Hospital of USTCDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui230001China Clinical and Translational Research Center for 3D Printing Technology Shanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineShanghai200011China

Magnesium(Mg)alloys that have both antibacterial and osteogenic properties are suitable candidates for orthopedic implants.However,the fabrication of ideal Mg implants suitable for bone repair remains challenging because it requires implants with interconnected pore structures and personalized geometric shapes.In this study,we fabricated a porous 3D-printed Mg-Nd-Zn-Zr(denoted as JDBM)implant with suitable mechanical properties using selective laser melting technology.The 3D-printed JDBM implant exhibited cytocompatibility in MC3T3-E1 and RAW267.4 cells and excellent osteoinductivity in vitro.Furthermore,the implant demonstrated excellent antibacterial ratios of 90.0% and 92.1% for methicillin-resistant S.aureus(MRSA)and Escherichia coli,respectively.The 3D-printed JDBM implant prevented MRSA-induced implant-related infection in a rabbit model and showed good in vivo biocompatibility based on the results of histological evaluation,blood tests,and Mg2+deposition detection.In addition,enhanced inflammatory response and TNF-α secretion were observed at the bone-implant interface of the 3D-printed JDBM implants during the early implantation stage.The high Mg^(2+)environment produced by the degradation of 3D-printed JDBM implants could promote M1 phenotype of macrophages(Tnf,iNOS,Ccl3,Ccl4,Ccl5,Cxcl10,and Cxcl2),and enhance the phagocytic ability of macrophages.The enhanced immunoregulatory effect generated by relatively fast Mg^(2+)release and implant degradation during the early implantation stage is a potential antibacterial mechanism of Mg-based implant.Our findings indicate that 3D-printed porous JDBM implants,having both antibacterial property and osteoinductivity,hold potential for future orthopedic applications.

关键词： Magnesium implants 3D printing Implant-related infections Antibacterial activity

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企业项目管理中项目成员激励模式的研究

项目管理技术 2022年第6期20卷 142-146页

作者：王文宇中国飞机强度研究所陕西西安710065

激励能够充分调动项目成员的工作热情、创造能力和积极性。激励模式研究成为促进项目团队发展的迫切需求,通过阐述项目管理中激励模式的内涵,分析激励手段的运用,结合项目类业务展开的实际情况,提出项目管理中激励模式的原则,初步建立... 详细信息

激励能够充分调动项目成员的工作热情、创造能力和积极性。激励模式研究成为促进项目团队发展的迫切需求,通过阐述项目管理中激励模式的内涵,分析激励手段的运用,结合项目类业务展开的实际情况,提出项目管理中激励模式的原则,初步建立项目管理中激励模式的措施,进一步分析项目管理流程和激励模式的内容,为后续项目类业务的开展提供了更好的方法,有助于摆脱在实际项目开展过程中遇到的持续动力不足等问题,同时可为在企业项目管理中对项目成员激励模式的研究提供一些对策和建议。

关键词：项目成员项目管理激励模式

高校中国共产党人精神谱系育人:机理、困境与优化路径

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思想政治教育研究 2023年第1期39卷 133-138页

作者：孙英浩王文俣哈尔滨理工大学马克思主义学院黑龙江哈尔滨150080

高校中国共产党人精神谱系育人在建设文化强国、赓续红色血脉、落实立德树人根本任务等维度具有重要意义。根据协同理论,高校中国共产党人精神谱系育人功能的实现,需要逻辑起点、内生动力、外驱动力、保障机制等要素的协同作用。当前,... 详细信息

高校中国共产党人精神谱系育人在建设文化强国、赓续红色血脉、落实立德树人根本任务等维度具有重要意义。根据协同理论,高校中国共产党人精神谱系育人功能的实现,需要逻辑起点、内生动力、外驱动力、保障机制等要素的协同作用。当前,我国高校中国共产党人精神谱系育人工作还存在育人理念尚未达成共识、协同育人合力有待强化、育人资源的利用率不高、学生主体地位有待加强等现实问题。优化高校中国共产党人精神谱系育人工作,需要加强宣传引导、理顺育人体系、开发育人载体、引导学生自觉。

关键词：中国共产党人精神谱系高校人才培养

Graphene Supported Platinum Nanoparticles as Catalyst for Oxygen Reduction Reaction

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Chemical Research in Chinese Universities 2015年第6期31卷 1007-1011页

作者： ZHANG wenyu wang Zhixin SHEN Yan XI Muyao CHU Xuebin XI Chunyu China-Japan Union Hospital Jilin University Changchun 130033 P. R. China Depertment of Food Science and Engineering Jilin University Changchun 130062 P. R. China Wuhan National Laboratory for Optoelectronics School of Optical and Electronic Information Huazhong University of Science and Technology Wuhan 430074 P. R. China

Graphene supported Pt nanoparticles were fabricated via electrochemical reduction method and the appli- cation of them in oxygen reduction reaction was also investigated. The results of field emission scanning electron microscope（SEM）, X-ray photoelectron spectroscopy（XPS） and Raman spectroscopy reveal that the interaction be- tween Pt nanoparticles and graphene sheets can prevent graphene from agglomeration and improve the electronic conductivity of the composite. And the graphene supported Pt nanoparticles exhibit excellent electrocatalytic activity toward oxygen reduction reaction.

关键词： Graphene Pt nanoparticle Electrodeposition Oxygen reduction Electrocatalyst

Identification and functional analysis of heterogeneous FOXP3^+ Treg cell subpopulations in human pancreatic ductal adenocarcinoma

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Science Bulletin 2018年第15期63卷 972-981页

作者： Gang Yi Shiwei Guo wenyu Liu Huan wang Rendong Liu Andy Tsun Gang Jin Bin Li Shanghai Key Laboratory of Bio-energy Crops School of Life Science Shanghai University Shanghai Institute of Immunology Shanghai Jiao Tong University School of Medicine Department of Immunology and Microbiology Shanghai Jiao Tong University School of Medicine CAS Center for Excellence in Molecular Cell Science Unit of Molecular Immunology Institute Pasteur of Shanghai Shanghai Institutes for Biological Sciences University of Chinese Academy of Sciences Medical School Chinese Academy of Sciences Department of General Surgery Changhai Hospital Second Military Medical University

CD4^+CD25^+regulatory T(Treg) cells express the transcription factor FOXP3 and play an essential role in preventing autoimmunity. Abundant Treg cell accumulation in tumors and tumor draining lymph nodes(TDLNs) has been reported to correlate with both poor and favorable prognosis in various cancers, which suggests that Tregs may have multiple effects on antitumor immunity. However, the heterogeneity of tumor^-and TDLN^-infiltrating Treg cells remains unclear. Here we provide heterogeneity analysis of tumor infiltrating human CD4^+Treg cells and their matched adjacent tissues and TDLNs. We defined three different subpopulations of tumor^-and TDLN^-infiltrating Treg cells by Helios and CCR8 expression in pancreatic ductal adenocarcinoma(PDAC) and confirmed their functional heterogeneity. Helios^+CCR8^+Treg cells with potent suppressor function and limited IL^-2 and IFN^-c secretion were identified in tumors and TDLNs. On the contrary, Helios^-CCR8^-Treg cells have impaired suppressive activity, and elevated expression of pro^-inflammatory cytokines. More advanced grades of PDAC have predominantly Helios^+CCR8^+Treg cells and few Helios^-CCR8^-Treg cells both in tumors and TDLNs that suggests poor prognosis. These data could help further define the role of Treg cells and their functional role in tumors and TDLNs.

关键词：房间胰腺腺癌 cytokines 鉴定异构太阳神 IL-2