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Expert consensus on the use of human serum albumin in critically ill patients

Chinese Medical Journal 2021年第14期134卷 1639-1654页

作者： Yue-Tian Yu Jiao Liu Bo Hu Rui-Lan wang Xiang-Hong Yang Xiu-Ling Shang Gang wang chang-song wang Bai-Ling Li Ye Gong Sheng zhang Xin Li Lu wang Min Shao Mei Meng Feng Zhu You Shang Qiang-Hong Xu Zhi-Xiong wu De-chang Chen Department of Critical Care Medicine Ren Ji HospitalShanghai Jiao Tong University School of MedicineShanghai 200001China Department of Critical Care Medicine Ruijin HospitalShanghai Jiao Tong University School of MedicineShanghai 200025China Department of Critical Care Medicine Zhongnan Hospital of Wuhan UniversityWuhanHubei 430071China Department of Critical Care Medicine Shanghai General HospitalShanghai Jiaotong University School of MedicineShanghai 201620China Department of Critical Care Medicine Zhejiang Provincial People’s Hospital(People’s Hospital of Hangzhou Medical College)HangzhouZhejiang 310014China Department of Critical Care Medicine Fujian Provincial HospitalShengli Clinical Medical College of Fujian Medical UniversityFuzhouFujian 350001China Department of Critical Care Medicine The Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’anShaanxi 710004China Department of Critical Care Medicine Harbin Medical University Cancer HospitalHarbinHeilongjiang 150081China Department of Cardiovascular Surgery Changhai HospitalNaval Military Medical University(The Second Military Medical University)Shanghai 200433China Department of Critical Care Medicine Department of NeurosurgeryHuaShan HospitalFudan UniversityShanghai 200040China Department of Cardiovascular Surgery Zhongshan HospitalFudan UniversityShanghai 200032China Department of Critical Care Medicine Renmin Hospital of Wuhan UniversityWuhanHubei 430060China Department of Critical Care Medicine The First Affiliated Hospital of Anhui Medical UniversityHefeiAnhui 230022China Department of Burn and Trauma Intensive Care Unit The First Affiliated HospitalNaval Medical UniversityShanghai 200433China Department of Critical Care Medicine Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei 430022China Department of Critical Care Medicine Zhejiang HospitalHangzhouZhejiang 310013China Department of Critical Care Medicine Huadong HospitalFudan UniversityShanghai 20

Introduction Human serum albumin(HSA)is a non-glycosylated,negatively charged,single-chain polypeptide composed of 585 amino acid residues with a relative molecular mass of 66.438 *** is synthesized by the liver at a rate of approximately 200 mg·kg^(-1)·day^(-1),with a half-life of 21 days,and subjected to catabolism in the muscles,liver,and kidneys at a rate of 4%per day.[1]Albumin,accounting for 60%of the total plasma protein,has various physiological functions,[2]such as maintaining 70%to 80%of effective plasma colloid osmotic pressure,coordinating vascular endothelial integrity,anti-oxidant and anti-inflammatory activities,maintaining the acidbase balance,and participating in the transport,distribution,and metabolism of a variety of endogenous and exogenous substances.

关键词： metabolism endogenous critically

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Electron-ion collider in China

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Frontiers of physics 2021年第6期16卷 1-78页

作者： Daniele PAnderle Valerio Bertone Xu Cao Lei chang Ningbo chang Gu Chen Xurong Chen Zhuojun Chen Zhufang Cui Lingyun Dai Weitian Deng Minghui Ding Xu Feng chang Gong Longcheng Gui Feng-Kun Guo Chengdong Han Jun He Tie-Jiun Hou Hongxia Huang Yin Huang KrešImir KumeričKi LPKaptari Demin Li Hengne Li Minxiang Li Xueqian Li Yutie Liang Zuotang Liang Chen Liu Chuan Liu Guoming Liu Jie Liu Liuming Liu Xiang Liu Tianbo Liu Xiaofeng Luo Zhun Lyu Boqiang Ma Fu Ma Jianping Ma Yugang Ma Lijun Mao Cédric Mezrag HervéMoutarde Jialun Ping Sixue Qin Hang Ren Craig DRoberts Juan Rojo Guodong Shen Chao Shi Qintao song Hao Sun PawełSznajder Enke wang fan wang Qian wang Rong wang Ruiru wang Taofeng wang Wei wang Xiaoyu wang Xiaoyun wang Jiajun wu Xinggang wu Lei Xia Bowen Xiao Guoqing Xiao Ju-Jun Xie Yaping Xie Hongxi Xing Hushan Xu Nu Xu Shusheng Xu Mengshi Yan Wenbiao Yan Wencheng Yan Xinhu Yan Jiancheng Yang Yi-Bo Yang Zhi Yang Deliang Yao Zhihong Ye Peilin Yin C-PYuan Wenlong Zhan Jianhui zhang Jinlong zhang Pengming zhang Yifei zhang Chao-Hsi chang Zhenyu zhang Hongwei Zhao Kuang-Ta Chao Qiang Zhao Yuxiang Zhao Zhengguo Zhao Liang Zheng Jian Zhou Xiang Zhou Xiaorong Zhou Bingsong Zou Liping Zou Guangdong Provincial Key Laboratory of Nuclear Science Institute of Quantum MatterSouth China Normal UniversityGuangzhou 510006China IRFU CEAUniversitéParis-SaclayF-91191 Gif-sur-YvetteFrance Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China University of Chinese Academy of Sciences Beijing 100049China Nankai University Tianjin 300071China Xinyang Normal University Xinyang 464000China School of Physics and Materials Science Guangzhou UniversityGuangzhou 510006China Hunan University Changsha 410082China Nanjing University Nanjing 210093China Huazhong University of Science and Technology Wuhan 430074China European Centre for Theoretical Studies in Nuclear Physics and Related Areas(ECT*)and Fondazione Bruno Kessler Villa TambosiStrada delle Tabarelle 286I-38123 Villazzano(TN)Italy School of Physics Peking UniversityBeijing 100871China Hunan Normal University Changsha 410081China Institute of Theoretical Physics Chinese Academy of SciencesBeijing 100190China Nanjing Normal University Nanjing 210023China Department of Physics College of SciencesNortheastern UniversityShenyang 110819China Southwest Jiaotong University Chengdu 610000China Department of Physics Faculty of ScienceUniversity of ZagrebBijenička c.3210000 ZagrebCroatia Bogoliubov Laboratory of Theoretical Physics Joint Institute for Nuclear ResearchDubna 141980Russia School of Physics and Microelectronics Zhengzhou UniversityZhengzhou 450001China Lanzhou University Lanzhou 730000China Key Laboratory of Particle Physics and Particle Irradiation(MOE) Shandong UniversityQingdao 266237China Key Laboratory of Quark and Lepton Physics(MOE)and Institute of Particle Physics Central China Normal UniversityWuhan 430079China School of Physics Southeast UniversityNanjing 211189China Key Laboratory of Nuclear Physics and Ion-beam Application(MOE) Institute of Modern PhysicsFudan UniversityShanghai 200433China Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China Depa

Lepton scattering is an established ideal tool for studying inner structure of small particles such as nucleons as well as *** a future high energy nuclear physics project,an Electron-ion collider in China(EicC)has been *** will be constructed based on an upgraded heavy-ion accelerator,High Intensity heavy-ion Accelerator facility(HIAF)which is currently under construction,together with a new electron *** proposed collider will provide highly polarized electrons(with a po-larization of 80%)and protons(with a polarization of 70%)with variable center of mass energies from 15 to 20 GeV and the luminosity of(2–3)×1033 cm^(−2)·s^(−1).Polarized deuterons and Helium-3,as well as unpolarized ion beams from Carbon to Uranium,will be also available at the *** main foci of the EicC will be precision measurements of the structure of the nucleon in the sea quark region,including 3D tomography of nucleon;the partonic structure of nuclei and the parton interaction with the nuclear environment;the exotic states,especially those with heavy flavor quark *** addition,issues fundamental to understanding the origin of mass could be addressed by measurements of heavy quarkonia near-threshold production at the *** order to achieve the above-mentioned physics goals,a hermetical detector system will be constructed with cutting-edge *** document is the result of collective contributions and valuable inputs from experts across the *** EicC physics program complements the ongoing scientific programs at the Jefferson Laboratory and the future EIC project in the United *** success of this project will also advance both nuclear and particle physics as well as accelerator and detector technology in China.

关键词： electron ion collider nucleon structure nucleon mass exotic hadronic states quantum chromodynamics 3D-tomography helicity transverse momentum dependent parton distribution generalized parton distribution energy recovery linac polarization spin rotator

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UCMW轧机的边缘降自动控制系统及其优化

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钢铁 2007年第9期42卷 56-59页

作者：周晓敏张清东王长松吴平北京科技大学机械工程学院北京100083 宝山钢铁股份公司冷轧厂上海200940

边缘降控制是板形控制的薄弱环节。研究了引进的边缘降自动控制系统模型,指出由于其存在预设定模型的预测能力无法发挥、反馈控制模型参数设定不合理、控制策略不完备等问题,引起产品的边缘降合格率时高时低。对现有边缘降控制系统进行... 详细信息

边缘降控制是板形控制的薄弱环节。研究了引进的边缘降自动控制系统模型,指出由于其存在预设定模型的预测能力无法发挥、反馈控制模型参数设定不合理、控制策略不完备等问题,引起产品的边缘降合格率时高时低。对现有边缘降控制系统进行优化,优化后的模型经现场验证表明,可有效控制边缘降,特别是位于工作侧位置的带钢边部,边缘降值有明显改善。

关键词：边缘降自动控制系统优化

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UCMW轧机边降和平坦度的解耦控制

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钢铁 2007年第5期42卷 55-57页

作者：周晓敏张清东王长松吴平北京科技大学机械工程学院北京100083 宝钢股份公司冷轧厂上海200940

对边降和平坦度的耦合关系进行了理论解析,并针对平坦度控制和边降控制的耦合关系进行了解耦处理。在反馈控制环节中专门设置一个独立运行的模块,即工作辊弯辊补偿控制模块。该模块根据5个机架的工作辊轴向位置的变化周期性随动调整5个... 详细信息

对边降和平坦度的耦合关系进行了理论解析,并针对平坦度控制和边降控制的耦合关系进行了解耦处理。在反馈控制环节中专门设置一个独立运行的模块,即工作辊弯辊补偿控制模块。该模块根据5个机架的工作辊轴向位置的变化周期性随动调整5个机架的工作辊弯辊,化解平坦度和边降的耦合关系,以获得最佳的板形控制效果。

关键词： UCMW 边降平坦度解耦控制

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头颈部血管瘤及脉管畸形手术治疗专家共识

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中国口腔颌面外科杂志 2024年第2期22卷 105-117页

作者：王延安秦中平郑家伟李春洁刘少华杨耀武陈刚陈伟良刘学键杜仲张雷王业飞王德明苏立新谢峰董长宪郭磊李凯顾松何悦张志愿上海交通大学医学院附属第九人民医院口腔颌面-头颈肿瘤科上海交通大学口腔医学院国家口腔医学中心国家口腔疾病临床医学研究中心上海市口腔医学重点实验室上海市口腔医学研究所上海200011 山东省临沂市肿瘤医院血管瘤脉管畸形专科山东临沂276001 四川大学华西口腔医院头颈肿瘤外科四川成都610041 山东大学齐鲁医院口腔颌面外科山东济南250012 空军军医大学口腔医院口腔颌面-头颈肿瘤外科陕西西安710032 武汉大学口腔医院口腔颌面-头颈肿瘤外科湖北武汉430079 中山大学孙逸仙纪念医院口腔颌面外科广东广州510120 山东省第一康复医院血管瘤中心山东临沂276029 北京大学口腔医院口腔颌面外科北京100081 上海交通大学医学院附属第九人民医院眼科上海200011 上海交通大学医学院附属第九人民医院介入科上海200011 上海交通大学医学院附属第九人民医院整复外科上海200011 河南省人民医院血管瘤科河南郑州450003 山东大学附属儿童医院血管瘤与介入血管外科山东济南250022 复旦大学附属儿科医院外科上海201102 上海交通大学医学院附属上海儿童医学中心普通外科上海200127

血管瘤及脉管畸形是头颈部常见的良性脉管源性疾病,随着对非手术治疗方案的深入研究与广泛应用,大量患者在微创或无创情况下得以改善或治愈疾病,但在特定情况下,手术依然是血管瘤及脉管畸形综合序列治疗中不可替代的治疗手段。然而,针... 详细信息

血管瘤及脉管畸形是头颈部常见的良性脉管源性疾病,随着对非手术治疗方案的深入研究与广泛应用,大量患者在微创或无创情况下得以改善或治愈疾病,但在特定情况下,手术依然是血管瘤及脉管畸形综合序列治疗中不可替代的治疗手段。然而,针对头颈部血管瘤及脉管畸形,如何选择和应用手术诊疗技术,学术界尚未形成规范和共识。为进一步提高国内同行对头颈部血管瘤及脉管畸形的治疗水平,规范和统一手术治疗策略,本文汇集全国多所医学院校及附属医院相关专家的讨论意见,借鉴和参考国内外相关最新成果与诊治经验,从头颈部血管瘤及脉管畸形的临床诊断及术前准备、手术适应证及策略、术后护理及观察、术后常见并发症及处理、随访及社会心理支持等方面,制定此专家共识,以帮助和指导相关专业的医师开展规范化手术治疗。

关键词：头颈部血管瘤脉管畸形手术治疗专家共识

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Insight-HXMT observations of the first binary neutron star merger GW170817

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Science China(Physics,Mechanics & Astronomy) 2018年第3期61卷 26-33页

作者： TiPei Li ShaoLin Xiong ShuangNan zhang fangJun Lu LiMing song XueLei Cao Zhi chang Gang Chen Li Chen TianXiang Chen Yong Chen YiBao Chen YuPeng Chen Wei Cui WeiWei Cui JingKang Deng YongWei Dong YuanYuan Du MinXue Fu GuanHua Gao He Gao Min Gao MingYu Ge YuDong Gu Ju Guan ChengCheng Guo DaWei Han Wei Hu Yue Huang Jia Huo ShuMei Jia LuHua Jiang WeiChun Jiang Jing Jin YongJie Jin Bing Li ChengKui Li Gang Li MaoShun Li Wei Li Xian Li XiaoBo Li Xufang Li YanGuo Li ZiJian Li ZhengWei Li XiaoHua Liang JinYuan Liao CongZhan Liu GuoQing Liu HongWei Liu ShaoZhen Liu XiaoJing Liu Yuan Liu YiNong Liu Bo Lu XueFeng Lu Tao Luo Xiang Ma Bin Meng Yi Nang JianYin Nie Ge OU JinLu Qu Na Sai Liang Sun Yin Tan Lian Tao WenHui Tao YouLi Tuo GuoFeng wang HuanYu wang Juan wang WenShuai wang YuSa wang XiangYang Wen BoBing wu Mei wu GuangCheng Xiao He Xu YuPeng Xu LinLi Yan JiaWei Yang Sheng Yang YanJi Yang AiMei zhang ChunLei zhang ChengMo zhang fan zhang HongMei zhang Juan zhang Qiang zhang Shu zhang Tong zhang Wei zhang Wanchang zhang WenZhao zhang Yi zhang Yue zhang YiFei zhang YongJie zhang Zhao zhang ZiLiang zhang HaiSheng Zhao JianLing Zhao Xiaofan Zhao ShiJie Zheng Yue Zhu YuXuan Zhu changLin Zou Key Laboratory of Particle Astrophysics Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China Department of Physics Tsinghua University Beijing 100084 China University of Chinese Academy of Sciences Chinese Academy of Sciences Beijing 100049 China Department of Astronomy Beijing Normal University Beijing 100088 China Department of Engineering Physics Tsinghua University Beijing 100084 China

Finding the electromagnetic （EM） counterpart of binary compact star merger, especially the binary neutron star （BNS） merger, is critically important for gravitational wave （GW） astronomy, cosmology and fundamental physics. On Aug. 17, 2017, Advanced LIGO and Fermi/GBM independently triggered the first BNS merger, GW170817, and its high energy EM counterpart, GRB 170817A, respectively, resulting in a global observation campaign covering gamma-ray, X-ray, UV, optical, IR, radio as well as neutrinos. The High Energy X-ray telescope （HE） onboard Insight-HXMT （Hard X-ray Modulation Telescope） is the unique high-energy gamma-ray telescope that monitored the entire GW localization area and especially the optical counterpart （SSS17a/AT2017gfo） with very large collection area （M000 cm2） and microsecond time resolution in 0.2-5 MeV. In addition, Insight-HXMT quickly implemented a Target of Opportunity （TOO） observation to scan the GW localization area for potential X-ray emission from the GW source. Although Insight-HXMT did not detect any significant high energy （0.2-5 MeV） radiation from GW170817, its observation helped to confirm the unexpected weak and soft nature of GRB 170817A. Meanwhile, Insight-HXMT/HE provides one of the most stringent constraints （-10-7 to 104 erg/cm2/s） for both GRB170817A and any other possible precursor or extended emissions in 0.2-5 MeV, which help us to better understand the properties of EM radiation from this BNS merger. Therefore the observation of Insight-HXMT constitutes an important chapter in the full context of multi-wavelength and multi-messenger observation of this historical GW event.

关键词： GW170817 BNS merger gravitational wave electromagnetic counterpart

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Expert consensus on the monitoring and treatment of sepsis-induced immunosuppression

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Military Medical Research 2023年第3期10卷 281-298页

作者： Fei Pei Ren‑Qi Yao Chao Ren Soheyl Bahrami Timothy RBilliar Irshad HChaudry De‑chang Chen Xu‑Lin Chen Na Cui Xiang‑Ming fang Yan Kang Wei‑Qin Li Wen‑Xiong Li Hua‑Ping Liang Hong‑Yuan Lin Ke‑Xuan Liu Ben Lu Zhong‑Qiu Lu Marc Maegele Tian‑Qing Peng You Shang Lei Su Bing‑Wei Sun chang‑song wang Jian wang Jiang‑Huai wang Ping wang Jian‑Feng Xie Li‑Xin Xie Li‑Na zhang Basilia Zingarelli Xiang‑Dong Guan Jian‑Feng wu Yong‑Ming Yao Department of Critical Care Medicine the First Affiliated Hospital of Sun Yat-Sen University58 Zhongshan Er RoadYuexiu DistrictGuangzhou 510080GuangdongChina Translational Medicine Research Center Medical Innovation Research Division and Fourth Medical Center of the Chinese PLA General Hospital28 Fuxing RoadHaidian DistrictBeijing 100853China Department of Burn Surgery the First Affiliated Hospital of Naval Medical UniversityShanghai 200433China Ludwig-Boltzmann Institute for Experimental and Clinical Traumatology 1200 ViennaAustria Department of Surgery University of Pittsburgh Medical CenterPittsburghPA 15213USA Center for Surgical Research and Department of Surgery University of Alabama at BirminghamBirminghamAL 35294USA Department of Critical Care Medicine Ruijin HospitalShanghai Jiaotong UniversityShanghai 200025China Department of Burns the First Affiliated Hospital of Anhui Medical UniversityHefei 230022China Department of Critical Care Medicine Peking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijing 100730China Department of Anesthesiology the First Affiliated HospitalZhejiang University School of MedicineHangzhou 31003China Department of Critical Care Medicine West China Hospital of Sichuan UniversityChengdu 610041China Department of Critical Care Medicine General Hospital of Eastern Theater Command of Chinese PLANanjing 210002China Department of Surgical Intensive Critical Unit Beijing Chao‑Yang HospitalCapital Medical UniversityBeijing 100020China State Key Laboratory of Trauma Burns and Combined InjuryResearch Institute of SurgeryDaping HospitalArmy Medical UniversityChongqing 400042China Department of Critical Care Medicine Fourth Medical Center of the Chinese PLA General HospitalBeijing 100048China Department of Anesthesiology Nanfang HospitalSouthern Medical UniversityGuangzhou 510515China Department of Critical Care Medicine and Hematology the Third Xiangya HospitalCentral South UniversityChangs

Emerged evidence has indicated that immunosuppression is involved in the occurrence and development of *** provide clinical practice recommendations on the immune function in sepsis,an expert consensus focusing on the monitoring and treatment of sepsis-induced immunosuppression was *** related to the immune monitoring and treatment of sepsis were retrieved from PubMed,Web of Science,and Chinese National Knowledge Infrastructure to design items and expert opinions were collected through an online ***,the Delphi method was used to form consensus opinions,and RAND appropriateness method was developed to provide consistency evaluation and recommendation levels for consensus *** consensus achieved satisfactory results through two rounds of questionnaire survey,with 2 statements rated as perfect consistency,13 as very good consistency,and 9 as good *** summarizing the results,a total of 14 strong recommended opinions,8 weak recommended opinions and 2 non-recommended opinions were ***,a face-to-face discussion of the consensus opinions was performed through an online meeting,and all judges unanimously agreed on the content of this *** summary,this expert consensus provides a preliminary guidance for the monitoring and treatment of immunosuppression in patients with sepsis.

关键词： Sepsis Immune function monitoring Immunomodulatory therapy Immunosuppression

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Guideline for the diagnosis and treatment of rheumatoid arthritis with integrated traditional Chinese medicine and Western medicine to increase efficiency and reduce toxicity

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Traditional Medicine Research 2023年第3期8卷 19-35页

作者： Zhi-Jun Xie Wei Cao Lin Huang Yang-Qin Xun Nan Yang Ping wang Qiao wang Meng-Juan Ren Hai-chang Li Yun-Lan Liu Yu-Jun Tang Yue Hu Hui Zheng Juan-Juan zhang Hui Lan Shou-Yuan wu Qiang-Qiang Guo Ya-Jia Sun Xian-Zhuo zhang Xiao-Hui wang Xu-Ping song Yan-fang Ma Yao-Long Chen Cheng-Ping Wen Basic Medical School Zhejiang Chinese Medical UniversityHangzhou 310053China Department of Rheumatology Guang’anmen HospitalChina Academy of Chinese Medical SciencesBeijing 100053China Center for Evidence-Based Medicine School of Basic MedicineLanzhou UniversityLanzhou 730000China School of Public Health Lanzhou UniversityLanzhou 730000China The Institutes of Biology and Medical Sciences Soochow UniversitySuzhou 215123China The First Clinical Medical College Lanzhou UniversityLanzhou 730000China Hong Kong Chinese Medicine Clinical Study Center School of Chinese MedicineHong Kong Baptist UniversityHong Kong SARChina Institute of Health Data Science Lanzhou UniversityLanzhou 730000China Research Unit of Evidence-Based Evaluation and Guidelines(2021RU017) Chinese Academy of Medical SciencesSchool of Basic Medical SciencesLanzhou UniversityLanzhou 730000China WHO Collaborating Centre for Guideline Implementation and Knowledge Translation Lanzhou 730000China

Rheumatoid arthritis imposes a huge disease *** practice guidelines do not meet the needs of integrated traditional Chinese medicine and Western medicine in the treatment of rheumatoid *** established a guideline working group consists of a steering committee,a secretary group,an evidence evaluation group,a consensus group and a review group and developed a guideline following the guidance of the World Health Organization Handbook and the Chinese Medical *** guideline includes 35 recommendations which reached consensus by the two rounds Delphi *** recommendations were formulated to address the following themes of most concern to clinician:diagnostic imaging,disease staging,traditional Chinese medicine syndromes,effectiveness and toxicity of integrated traditional Chinese medicine and Western medicine.

关键词： rheumatoid arthritis guideline traditional Chinese medicine toxicity

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旗叶先衰型小麦生长后期顶三叶光合特性及其意义

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作物学报 2012年第12期38卷 2258-2266页

作者：张嵩午王长发苗芳周春菊姚有华李桂显西北农林科技大学理学院低温植物研究室陕西杨凌712100

经长期观察发现,某些小麦品种的部分主茎或分蘖(异常茎)具旗叶较倒二叶先衰老的特征,与常见的叶片衰老次序相反。为揭示这类品种的生物学特性,探讨其理论意义和应用价值,2005—2011连续6年,以正常小麦为对照,对其异常茎的叶绿素含量、... 详细信息

经长期观察发现,某些小麦品种的部分主茎或分蘖(异常茎)具旗叶较倒二叶先衰老的特征,与常见的叶片衰老次序相反。为揭示这类品种的生物学特性,探讨其理论意义和应用价值,2005—2011连续6年,以正常小麦为对照,对其异常茎的叶绿素含量、光合特性参数、灌浆速率和粒重进行了比较研究。结果表明,旗叶先衰型小麦异常茎的叶绿素含量、蒸腾速率、净光合速率在结实期的一定阶段呈现倒二叶超越旗叶;异常茎上的根、茎、叶较正常茎发育充分且较为发达,其灌浆速率也比正常茎快,因而一些重要农艺性状较正常茎为优。上述表型的出现可能与特殊的灌浆机制相关,不同于正常小麦旗叶作为向籽粒输送养分的主源于结实全程发挥作用的模式,并最终造成它们的籽粒体积、千粒重和穗粒重分别比正常小麦高9.64%、10.35%和8.43%。对这类小麦的深入研究有助于完善小麦生长发育、灌浆结实以及衰老机制理论,促进小麦产量的进一步提高。

关键词：叶片衰老次序异常茎正常茎光合和结实特性

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低温推进剂复合材料贮箱基体开裂预测方法

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宇航学报 2017年第9期38卷 1005-1012页

作者：任明法张笑闻常鑫黄诚王博大连理工大学工程力学系大连116024 大连理工大学工业装备结构分析国家重点实验室大连116024 北京宇航系统工程研究所北京100076

基于六边形单胞模型,构建了宏细观结构力学响应场间的关联矩阵,建立了低温推进剂复合材料贮箱结构的宏细观一体化分析方法,采用工程常用的能够预测不同失效模式的宏细观强度准则,对机械和温度载荷下复合材料层合板的基体开裂进行预测。... 详细信息

基于六边形单胞模型,构建了宏细观结构力学响应场间的关联矩阵,建立了低温推进剂复合材料贮箱结构的宏细观一体化分析方法,采用工程常用的能够预测不同失效模式的宏细观强度准则,对机械和温度载荷下复合材料层合板的基体开裂进行预测。结果表明:在机械载荷下,与试验数据相比,宏观Hashin准则、改进的宏观Tsai-wu准则、细观最大应力准则和细观Hashin准则均具有良好的预测精度。但在温度载荷下,由于考虑了组分材料间热力学性能的不匹配,使用细观强度准则与宏观强度准则预测的结果相比具有一定差异。通过对不同载荷情况下基体开裂预测结果的分析,提出了采用细观最大应力准则作为基体开裂判据,同时结合考虑组分材料热力学性能差异影响的宏细观一体化分析方法,可以有效地对低温推进剂复合材料贮箱结构的基体开裂进行预测。

关键词：复合材料贮箱基体开裂低温单胞模型强度准则宏细观一体化分析方法

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