检索结果-南通市图书馆

In situ studies on the positive and negative effects of 1,8-diiodoctane on the device performance and morphology evolution of organic solar cells

在线全文

学校读者我要写书评

暂无评论

Nuclear Science and Techniques 2021年第6期32卷 23-35页

作者： Da Huang chun-xia hong Jian-Hua Han Nie Zhao Xiu-hong Li Xi-Chang Bao Feng-Gang Bian Yu-Ying Huang chun-Ming Yang Shanghai Synchrotron Radiation Facility Shanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai 201204China Shanghai Advanced Research Institute Chinese Academy of SciencesShanghai 201210China CAS Key Laboratory of Bio-Based Materials Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101China University of Chinese Academy of Sciences Beijing 100049China Functional Laboratory of Solar Energy Shandong Energy InstituteQingdao 266101China College of Materials Science and Engineering Xiangtan UniversityXiangtan 411105China

The introduction of solvent additives is one of the most common approaches for enhancing the power conversion efficiency of organic solar cells(OSCs).However,the use of solvent additives has some negative effects,and an understanding of how solvent additives affect OSCs is currently *** this study,we developed an in situ grazing incidence wide-angle X-ray scattering(GIWAXS)technique in the SAXS beamline(BL16 B1)at the Shanghai Synchrotron Radiation Facility,and the additive effects of1,8-diiodoctane(DIO)on the performance and morphology evolution of the PTB7-Th/PC71 BM device was investigated in *** results revealed that the crystal size increased with the volume ratio of DIO,and a drastic evolution of lattice space and crystal coherence length was observed during thermal annealing for the first time,to our *** discrete PC71BM molecules dissolved by DIO have an effect similar to that of the nucleating agent for PTB7-Th,boosting the crystallization of PTB7-Th,reducing phase separation,and inducing more drastic morphological evolution during thermal *** results provide a deep perspective for the mechanism of solvent additives,while also showing the significance and feasibility of the in situ GIWAXS technique we developed at BL16 B1.

关键词： Grazing incidence wide-angle X-ray scattering Grazing incidence small-angle X-ray scattering Organic solar cells Solvent additive Thermal stability

BL19U2:Small-angle X-ray scattering beamline for biological macromolecules in solution at SSRF

在线全文

学校读者我要写书评

暂无评论

Nuclear Science and Techniques 2020年第12期31卷 32-40页

作者： Yi-Wen Li Guang-Feng Liu hong-Jin Wu Ping Zhou chun-xia hong Na Li Feng-Gang Bian Shanghai Advanced Research Institute(Zhangjiang Laboratory) Chinese Academy of SciencesShanghai 201204China CAS Key Laboratory of Molecular Virology and Immunology Institute Pasteur of ShanghaiChinese Academy of SciencesShanghai 200031China University of Chinese Academy of Sciences Beijing 100049China

The BL19U2 at the Shanghai Synchrotron Radiation Facility is a small-angle X-ray scattering beamline dedicated to structural studies pertaining to biological macromolecules in *** beamline has been officially opened to users in March 2015,and since then,a series of technological innovations has been developed to optimize beamline performance,thereby significantly improving the data collection efficiency and broadening the application scope of biological small-angle X-ray ***19U2 is ideal for the high-throughput screening of weakly scattered proteins,protein assemblies,nucleic acids,inorganic nanomaterials,and organic drug *** paper describes the design and overview of the BL19U2 *** sample environments at the experimental station and some recent scientific highlights are presented.

关键词： Shanghai synchrotron radiation facility Biological small-angle X-ray scattering High-throughput screening Biological macromolecules

Failure of EB-PVD Thermal Barrier Coatings Subjected to Thermo-Mechanical Loading

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Aeronautics 2006年第B12期19卷 82-85页

作者： CHEN Chen ZHANG chun-xia GUO hong-bo GONG Sheng-kai ZHANG Yue School of Materials Science and Engineering Beij＇ing University of Aeronautics and Astronautics Beijing 100083 China

Thermal barrier coatings （TBCs） were developed to protect metallic blades and vanes working in turbo-engines. The two-layered structure TBCs, consisting of NiCoCrAlY bond coat and yttria stabilized zirconia （YSZ）, were deposited on a cylinder of superalloy substrate by the electron beam-physical vapor deposition （EB-PVD）. The failure mechanism of the TBCs was investigated with a thermo-mechanical fatigue testing system under the service condition similar to that for turbine blades. Non-destructive evaluation of the coated specimens was conducted through the impedance spectroscopy. It is found that the crack initiation mainly takes place on the top coat at the edge of the heated zones.

关键词： electron beam-physical vapor deposition (EB-PVD) thermal barrier coatings (TBCs) thermal-mechanical loading impedance spectroscopy failure

Time-resolved ultra-small-angle X-ray scattering beamline(BL10U1)at SSRF

在线全文

学校读者我要写书评

暂无评论

Nuclear Science and Techniques 2024年第2期35卷 6-19页

作者： Wen-Qiang Hua chun-Ming Yang Ping Zhou Feng Tian Jin-You Lin Yu-Zhu Wang xiao-Yun Li xia-Ran Miao chun-xia hong Qiu-Shi Huang Xin-Tong Zhao Yong-Feng Men Jie Wang Xing-Yu Gao Xiu-hong Li Shanghai Synchrotron Radiation Facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201204China Key Laboratory of Advanced Micro Structural Materials MOEInstitute of Precision Optical EngineeringSchool of Physics Science and EngineeringTongji UniversityShanghai 200092China State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China

The construction of a new beamline,BL10U1,was completed at the Shanghai synchrotron radiation facility in *** multipurpose beamline was designed to provide X-ray scattering techniques such as ultra-small-angle X-ray scattering(USAXS),small-angle X-ray scattering(SAXS),wide-angle X-ray scattering,and microfocus SAXS(μSAXS)for a broad user *** realize fast time-resolved USAXS experiments,the beamline adopted an in-vacuum undulator with a total length of 1.6 m as the photon *** in-house cryogenic-cooled double multilayer monochromator was installed to deliver a photon flux of approximately 10^(13) photons/s at a photon energy of 10 *** three-year successful operation of this beamline demonstrated that the monochromator operated smoothly,as ***10U1 has three end stations in succession:USAXS end station,μSAXS end station,and end station for industrial *** minimum scattering vector q~0.0042 nm^(-1) at 10 keV can be achieved at the USAXS end station equipped with a 28 m-long and 1.8 m-diameter vacuum flight *** theμSAXS end station,a beam spot of less than 10×8μm was achieved for micro-SAXS *** contrast,in situ experimental instruments up to 5 m high and 8 m wide can be mounted at the industrial application end station,which offers industrial scientists the opportunity to use their large industrial ***10U1 opens up a new capability to investigate phenomena such as non-equilibrium and dynamic processes of materials with a wide length scale from angstroms to micrometers with millisecond time *** this paper,we also report beamline design considerations and commissioning results.

关键词： Synchrotron radiation Ultra-small-angle X-ray scattering Micro small-angle X-ray scattering USAXS Time resolved μSAXS

碳纤维布增强混凝土平面框架节点抗剪性能试验研究与机理分析

在线全文

学校读者我要写书评

暂无评论

世界地震工程 2006年第1期22卷 157-163页

作者：王步王溥夏春红长安大学建工学院陕西西安710061 上海市建筑科学研究院上海200032

混凝土平面框架节点核心区不存在直交梁的影响,可以应用碳纤维布直接进行加固,以增强地震作用下节点核心区的抗剪承载力。根据足尺混凝土框架节点低周反复加载试验结果,对碳纤维布的增强机理进行了分析和讨论,并在此基础上提出了实用的... 详细信息

混凝土平面框架节点核心区不存在直交梁的影响,可以应用碳纤维布直接进行加固,以增强地震作用下节点核心区的抗剪承载力。根据足尺混凝土框架节点低周反复加载试验结果,对碳纤维布的增强机理进行了分析和讨论,并在此基础上提出了实用的加固计算公式。

关键词：碳纤维布加固梁柱节点

在线全文

学校读者我要写书评

暂无评论

中国非实验性护理研究论文引文分析

中国实用护理杂志 2010年第29期26卷 73-75页

作者：夏春红李峥北京协和医学院护理学院

目的描述我国非实验性护理研究论文的引文情况,反映非实验性护理研究论文的学术水平及研究者对文献信息吸收利用能力。方法采用文献计量法通过手工检索对《中华护理杂志》及《实用护理杂志》(于2003年更名为《中国实用护理杂志》)1990～... 详细信息

目的描述我国非实验性护理研究论文的引文情况,反映非实验性护理研究论文的学术水平及研究者对文献信息吸收利用能力。方法采用文献计量法通过手工检索对《中华护理杂志》及《实用护理杂志》(于2003年更名为《中国实用护理杂志》)1990～2006年共466期期刊中刊载的2547篇非实验性护理研究论文全文逐篇分析其引文量、普莱斯指数、引文类型、引文来源、引文语种等。结果非实验性护理研究论文平均引文量为4.4条,随时间推进逐渐增加;普莱斯指数为55.6%;引文类型以期刊文献为主(73.4%),且随时间推进其比例逐渐增加;来源于护理专业以外的其他医学专业的引文所占比例最高(59.1%),来自护理专业的引文所占比例有逐渐增高的趋势;中文语种的引文所占比例最高(73.6%),英文语种引文的比例在整体上呈现逐渐升高的趋势。结论随着护理专业的发展,护理研究者吸收文献信息的能力逐渐增强,对外文信息的获取能力亟待提高。

关键词：非实验性护理研究引文分析文献计量法

ICU护士身体约束知识、态度、行为的调查分析

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

中华护理杂志 2008年第6期43卷 568-570页

作者：夏春红李峥北京协和医学院护理学院北京市100041

目的描述监护病房护理人员身体约束知识、态度、行为情况及其相关性。方法采用便利取样的方法,抽取北京市3所三级甲等医院监护病房的110名护士为研究对象。研究工具包括自行设计的一般资料问卷、身体约束知识问卷、身体约束态度问卷、... 详细信息

目的描述监护病房护理人员身体约束知识、态度、行为情况及其相关性。方法采用便利取样的方法,抽取北京市3所三级甲等医院监护病房的110名护士为研究对象。研究工具包括自行设计的一般资料问卷、身体约束知识问卷、身体约束态度问卷、身体约束行为问卷。结果监护病房护理人员身体约束知识得分属于中等水平(11.09±2.21),身体约束适用性知识答对率最低(36.4%),身体约束护理知识答对率最高(90.2%)。护理人员对身体约束的使用呈中性态度,而身体约束行为得分则较高(47.92±6.37)。在ICU工作的年限与身体约束知识得分呈负相关(r=-0.21,P<0.05),而是否参加过身体约束使用相关继续教育的两组护士之间在身体约束知识、态度、行为得分上有显著性差异(P均<0.05)。身体约束态度得分与身体约束知识、行为的得分呈正相关(r=0.30、0.27,P<0.01),身体约束知识得分与身体约束行为得分之间无相关性。结论监护病房护理人员身体约束知识不足,对身体约束呈中性态度,有较为恰当的身体约束行为。

关键词：重症监护病房约束,身体的健康知识,态度,实践

Impact of community public health care on treatment effect,health cognition,and self-management in patients with type 2 diabetes

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Cases 2025年第5期13卷 22-29页

作者： hong Shi chun Liu hong-Yan Luo Department of Infrastructure Operation West China Hospital of Sichuan UniversityChengdu 610041Sichuan ProvinceChina Department of Public Health Minzu Street Community Health Service CenterWuhan 430000Hubei ProvinceChina Caotang Community Health Service Center Chengdu 610031Sichuan ProvinceChina

BACKGROUND At present,China has become the country with the largest number of individuals with diabetes mellitus(DM)in the world,with a total of approximately 140 million patients,the majority of whom have type 2 DM(T2DM).Based on conven-tional nursing methods,community home care has important clinical significance in controlling blood sugar and disease *** To explore the impact of community public health nursing on treatment effect,health cognition,and self-management in patients with *** One hundred patients with T2DM were selected as the research *** patients were divided into either a conventional nursing group or community nursing(CN)group using the random number table *** conventional nursing group(50 cases)received routine care,while the CN group(50 cases)received community public health care in addition to routine care as that for the conventional nursing *** rate of excellent and good blood glucose control,fasting blood glucose before and after care,2-h postprandial blood glucose,health cognition,and self-management ability,and patient satisfaction were compared between the two *** The CN group had a higher rate of excellent blood sugar control than the conventional nursing group(88%vs 70%,P0.05).After nursing,fasting blood glucose and 2-h postprandial blood glucose were reduced to varying degrees in both groups,and both blood glucose levels in the CN group were lower than those of the conventional nursing group(P<0.05).Compared with the scores before care,the cognitive level score for diabetes and self-management ability score improved after care in both *** cognitive level and self-management ability of patients in the CN group were higher than those of the conventional nursing group(P<0.05).The overall satisfaction of the CN group was better than

关键词： Community public health care Type 2 diabetes Blood sugar control Self-management ability Cognition level

卡瑞利珠单抗对晚期结直肠癌免疫功能及PD-1/PD-L1信号通路的近期疗效

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

世界华人消化杂志 2023年第15期31卷 647-654页

作者：杜海旭洪春霞喻彤浙江大学医学院附属金华医院药学部浙江省金华市321000

背景结直肠癌是我国高发恶性肿瘤之一,化疗时晚期结直肠癌患者的主要治疗方式,对会带来毒副反应,降低患者生活质量.因患者毒副反应的发生与其免疫等因素相关,联合注射用卡瑞利珠单抗治疗方案是否能通过影响程序性细胞死亡蛋白1(programm... 详细信息

背景结直肠癌是我国高发恶性肿瘤之一,化疗时晚期结直肠癌患者的主要治疗方式,对会带来毒副反应,降低患者生活质量.因患者毒副反应的发生与其免疫等因素相关,联合注射用卡瑞利珠单抗治疗方案是否能通过影响程序性细胞死亡蛋白1(programmed cell death protein 1,PD-1)/程序性死亡配体1(programmed death ligand 1,PD-L1)信号通路对患者病情产生积极影响的研究具有重要意义.目的探讨注射用卡瑞利珠单抗改善晚期结直肠癌免疫功能的可能机制,并分析其对PD-1/PD-L1信号通路的调控作用.方法采用前瞻性随机对照组研究,选取2019-01/2021-10本院收治的127例晚期结直肠癌患者为研究对象,采用电脑随机数字法分为对照组(n=63)、研究组(n=64).对照组予以奥沙利铂+卡培他滨,研究组予以奥沙利铂+卡培他滨+注射用卡瑞利珠单抗治疗.统计两组疗效、毒副反应、生存状况及治疗前后PD-1/PD-L1信号通路、肿瘤标志物[糖类抗原125(carbohydrate antigen 125,CA125)、糖类抗原242(carbohydrate antigen 242,CA242)、胸苷激酶1(thymidine kinase 1,TK1)、癌胚抗原(carcinoembryonic antigen,CEA)]、营养状态指标[白蛋白(albumin,ALB)、血红蛋白(hemoglobin,HGB)、前白蛋白(prealbumin,PA)、转铁蛋白(transferrin,TF)、主观全面评定量表(patient-generated subjective global assessment,PG-SGA)].结果治疗4个周期后,研究组疾病控制率高于对照组(P<0.05);治疗4个周期后研究组PD-1、PD-L1 mRNA和蛋白水平低于对照组(P<0.05);治疗4个周期后研究组血清ALB、TF、PA水平及PG-SGA评分高于对照组(P<0.05);治疗4个周期后研究组血清CA125、CA242、TK1、CEA低于对照组(P<0.05);两组毒副反应发生率、生存率比较差异无统计学意义.结论注射用卡瑞利珠单抗联合奥沙利铂、卡培他滨治疗晚期结直肠癌可提高疾病控制率,可能通过抑制PD-1/PD-L1信号通路活化,减小化疗药物对机体营养状态的影响,进而改善机体免疫功能,且具有一定安全性.

关键词：结直肠癌卡瑞利珠单抗程序性细胞死亡蛋白1 程序性死亡配体1 免疫功能疗效安全性