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Hybridization of covalent organic frameworks and photosensitive metal-organic rings:A new strategy for constructing supramolecular Z-scheme heterostructures for ultrahigh photocatalytic hydrogen evolution

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Aggregate 2024年第2期5卷 239-249页

作者： Xin-ao Li Zi-zhan Liang Ye-Cheng Zhou jian-Feng Huang Xiao-lin Wang Li-Min Xiao jun-Min Liu The Key Laboratory of Low-Carbon Chemistry&Energy Conservation of Guangdong Province School of Materials Science and EngineeringSun Yat-sen UniversityGuangzhouChina School of Computer Science and Engineering Beihang UniversityBeijingChina

The rational design of Z-scheme heterojunction photosystems based on covalent organic frameworks(COFs)is a promising strategy for harnessing solar energy for hydrogen ***,a direct Z-scheme single-atom photocatalyst based on COF and metal-organic ring has been constructed through the supramolecular interactions of coral-like COF(S-COF)and photosensitized Pd2L2 type metal-organic ring(MAC-FA1).The MAC-FA1/S-COF heterojunction exhibits good light absorption,efficient charge separation and transfer,slow electron-hole recombination,and highly dispersed Pd active sites,enabling an efficient and stable H_(2) evolution *** optimized 4%MAC-FA1/S-COF achieves an H_(2) evolution rate of 100 mmol g^(−1)h^(−1)within 5 h and obtains a total accumulated turn-over number relative to Pd(TON_(Pd))of 437,685 within 20 h,far superior to S-COF,MAC-FA1,M-5/S-COF,Pd/S-COF,and M-5/Pd/S-COF,which is one of the highest records among COF-based photocatalysts for solar-driven H_(2)*** is the first work to incorporate photosensitized metal-organic rings/cages into porous crystalline COFs to form a supramolecular Z-scheme heterojunction,which has significant potential as a high-performance photocatalyst for solar-driven H_(2)production.

关键词： covalent organic framework metal-organic ring single-atom catalyst visible-light-driven H2 production Z-scheme heterojunction

Alcohol drinking triggered decrease of oxidative balance score is associated with high all-cause and cardiovascular mortality in hypertensive individuals:findings from NHANES 1999–2014

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Journal of Geriatric Cardiology 2024年第8期21卷 779-790页

作者： Yu-jun zhanG Jing-Jing SONG jian-Hao zhan Chu-lin ZHOU ao LI Mao-Qi WANG Ben-Jie LI Cong-Cong DING Yi-Wei zhanG Zi-heng tan Zai-Hua CheNG Xiao HUANG Department of Cardiology the Second Affiliated HospitalJiangxi Medical CollegeNanchang UniversityNanchangChina Huankui Academy Nanchang UniversityNanchangChina School of Ophthalmology and Optometry of Nanchang University NanchangChina The Second Clinical Medical College Nanchang UniversityNanchangChina Queen Mary School Nanchang UniversityNanchangChina The First Clinical Medical College Nanchang UniversityNanchangChina Department of Cardiovascular Medicine Huzhou First People’s HospitalZhejiangChina

BACKGROUND Oxidative stress is closely associated with hypertensive *** oxidative balance score(OBS)measures oxidative stress exposure from dietary and lifestyle *** objective of this study was to investigate the association between OBS and mortality in hypertensive *** This study included 7823 hypertensive patients from the National health and Nutrition Examination Survey(NHA-NES)*** models,including Cox regression,restricted cubic splines(RCS),Kaplan-Meier survival analysis,subgroup,and sensitivity analyses,were exploited to investigate the relationship between OBS and the risk of *** Controlling for all potential confounders,a significantly inverse association was observed between elevated OBS and all-cause[hazard ratio(HR)=0.90,95%CI:0.85-0.95]and cardiovascular mortality(HR=0.85,95%CI:0.75-0.95).With adjustment for covariates,significant associations between lifestyle OBS and mortality risks diminished,whereas associations between dietary OBS and these mortality risks remained robust(all-cause mortality:HR=0.91,95%CI:0.86-0.96;cardiovascular mortality:HR=0.85,95%CI:0.76-0.96).RCS demonstrated a linear relationship between OBS and all-cause and cardiovascular mortality risk(P_(nonlinear)=0.088 and P_(nonlinear)=0.447,respectively).Kaplan-Meier curves demonstrated that the mortality rate was lower with a high OBS(Phe consistency of the association was demonstrated in subgroup and sensitivity *** after stratification showed that among current drinkers,those with higher OBS had a lower risk of mortality compared with former or never *** In hypertensive individuals,there was a negative association between OBS and all-cause and cardiovascular *** hypertensive individuals,especially those currently drinking,to maintain high levels of OBS may be beneficial in improving their prognosis.

关键词： high finding Alcohol

Knowledge and Use of Personal Protective Measures for Mitigating Acute Respiratory Infections in Children 6-16 Years of Age in Rural Communities of Macheng City,Hubei,China

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Biomedical and Environmental Sciences 2022年第10期35卷 968-975页

作者： CheN Yue zhan jian Bo DONG shao Bo LU jian GUO jun Feng FAN Jin Song GE Jing lin Xiao Jing LAN Yu QIN Kun HU Bing ZHOU jian Fang XU Cui ling Chinese National Influenza Center National Institute for Viral Disease Control and PreventionChinese Center for Disease Control and PreventionKey Laboratory for Medical VirologyKey Laboratory for Medical VirologyNational Health and Family Planning CommissionBeijing 102206China Hubei Provincial Center for Disease Control and Prevention Wuhan 430079HubeiChina Macheng City Center for Disease Control and Prevention Macheng 438399HubeiChina

Acute respiratory infections are the most common illnesses experienced by people of all ages *** epidemiologic studies have shown that viruses cause most of these acute respiratory illnesses[1].

关键词： Acute respiratory acute

Magnetic Field Induced Spectroscopy of ^(88)Sr Atoms Probed with a 10 Hz linewidth Laser

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Chinese Physics Letters 2013年第1期30卷 95-98页

作者： lin Yi-Ge WANG Qiang LI Ye lin Bai-Ke WANG shao-Kai MENG Fei ZHao Yang Cao jian-Ping ZANG Er-jun LI Tian-Chu FANG zhan-jun School of Opto-Electronics Beijing Institute of TechnologyBeijing 100081 Time and Frequency Metrology Division National Institute of MetrologyBeijing 100013 Department of Precision Instruments and Mechanology Tsinghua UniversityBeijing 100084

We present our experiment on magnetic field induced spectroscopy of the ^(1)S0–^(3)P0 transition of ^(88)Sr atoms with a 10 Hz linewidth *** ^(88)Sr atoms are cooled by two stage laser *** the second stage narrow line laser cooling,the temperature of the atoms is reduced to~3μ*** atoms are then loaded into an 813 nm one-dimensional optical lattice.A homemade 698 nm laser with 10 Hz linewidth and maximum intensity of more than 100 W/cm2 is used to probe the ^(88)Sr atoms in the *** means of a magnetic field of~1 mT and a probe laser with 50 ms pulse and~6 W/cm^(2) intensity,the Doppler free ^(88)Sr ^(1)S0–^(3)P0 transition spectrum with a linewidth of 208 Hz is obtained.

关键词： laser Probe intensity

Morphological Evolution of a-GaN on r-Sapphire by Metalorganic Chemical Vapor Deposition

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Chinese Physics Letters 2012年第2期29卷 166-169页

作者： SANG ling LIU jian-Ming XU Xiao-Qing WANG jun ZHao Gui-Juan LIU Chang-Bo GU Cheng-Yan LIU Gui-Peng WEI Hong-Yuan LIU Xiang-lin YANG shao-Yan ZHU Qin-Sheng WANG zhan-Guo Key Laboratory of Semiconductor Materials Science Institute of SemiconductorsChinese Academy of SciencesP.O.Box 912Beijing 100083

The morphological evolution of a-GaN deposited by metalorganic chemical vapor deposition (MOCVD) on rsapphire is *** influences of Ⅴ/Ⅲ ratio and growth temperature on surface morphology are investigated.Ⅴ-pits and stripes are observed on the surface of a-GaN grown at 1050 ℃ and 1100℃,*** overall orientation and geometry of Ⅴ-pits are uniform and independent on the Ⅴ/Ⅲ molar ratio in the samples grown at 1050 ℃,while in the samples grown at 1100 ℃,the areas of stripes decrease with the adding of Ⅴ/Ⅲ *** deduce the origin of Ⅴ-pits and stripes by annealing the buffer layers at different *** of the existence of inclined (10(-1)1) facets,Ⅴ-pits are formed at 1050℃.The (10(-1)1) plane is an N terminated surface,which is metastable at higher temperature,so stripes instead of V-pits are observed at 1100℃.Raman spectra suggest that the growth temperature of the first layer in the two-step process greatly affects the strain of the ***,to improve the growth temperature of the first layer in the two-step method may be an effective way to obtain high quality a-GaN film on r-sapphire.

关键词： sapphire GaN MOCVD

Chemoprophylaxis, diagnosis, treatments, and discharge management of COVID-19: An evidence-based clinical practice guideline(updated version)

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Military Medical Research 2020年第3期7卷 249-282页

作者： Ying-Hui Jin Qing-Yuan zhan Zhi-Yong Peng Xue-Qun Ren Xun-Tao Yin lin Cai Yu-Feng Yuan Ji-Rong Yue Xiao-Chun zhang Qi-Wen Yang jianguang Ji jian Xia Yi-Rong Li Fu-Xiang Zhou Ya-Dong Gao Zhui Yu Feng Xu Ming-Li Tu Li-Ming tan Min Yang Fang Chen Xiao-Ju zhang Mei Zeng Yu Zhu Xin-Can Liu jian Yang Dong-Chi Zhao Yu-Feng Ding Ning Hou Fu-Bing Wang Hao Chen Yong-Gang zhang Wei Li Wen Chen Yue-Xian Shi Xiu-Zhi Yang Xue-jun Wang Yan-jun Zhong Ming-Juan Zhao Bing-Hui Li lin-Lu Ma Hao Zi Na Wang Yun-Yun Wang shao-Fu Yu Lu-Yao Li Qiao Huang Hong Weng Xiang-Ying Ren Li-Sha Luo Man-Ru Fan Di Huang Hong-Yang Xue lin-Xin Yu Jin-Ping Gao Tong Deng Xian-Tao Zeng Hong-jun Li Zhen-Shun Cheng Xiao-Mei Yao Xing-Huan Wang Center for Evidence-Based and Translational Medicine Zhongnan Hospital of Wuhan UniversityWuhan 430071China National Clinical Research Center for Respiratory Diseases China-Japan Friendship HospitalBeijing 100029China Department of Pulmonary and Critical Care Medicine China-Japan Friendship HospitalBeijing 10029China Leishenshan Hospital in Wuhan Wuhan 430200China Department of Critical Care Medicine Zhongnan Hospital of Wuhan UniversityWuhan 430071China Institutes of Evidence-based Medicine and Knowledge Translation Henan UniversityKaifeng 475000HenanChina Department of Medical Imaging Guizhou Provincial People’s HospitalGuiyang 550002China Departments of Orthopedics Zhongnan Hospital of Wuhan UniversityWuhan 430071China Department of hepatobiliary Surgery Zhongnan Hospital of Wuhan UniversityWuhan 430071China National Clinical Research Center for Geriatrics West China Hospital of Sichuan UniversityChengdu 610041China Department of Geriatrics West China Hospital of Sichuan UniversityChengdu 610041China Department of Radiology Zhongnan Hospital of Wuhan UniversityWuhan 430071China Department of Clinical Laboratory Peking Union Medical College Hospital(PUMCH)Peking Union Medical CollegeChinese Academy of Medical Sciences(CAMS)Beijing 100730China Center for Primary health Care Research Lund University and Region Skåne25002 MalmöSweden Emergency Center Zhongnan Hospital of Wuhan UniversityWuhan 403371China Department of Allergology Zhongnan Hospital of Wuhan UniversityWuhan 430071China Department of Radiation and Medical Oncology Zhongnan Hospital of Wuhan UniversityWuhan 43071China Department of Critical Care Medicine Renmin Hospital of Wuhan UniversityWuhan 430060China Department of Emergency Medicine and Chest Pain Center Qilu Hospital of Shandong UniversityJinan 250002China Department of Respiratory and Critical Care Medicine Suizhou Central HospitalHubei University of MedicineSuizhou 441300HubeiChina Department of Clinic Pharmacy Second People’s Hospital of Huaihua Ci

The novel severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)is the cause of a rapidly spreading illness,coronavirus disease 2019(COVID-19),affecting more than seventeen million people around the *** and treatment guidelines for clinicians caring for patients are *** the early stage,we have issued"A rapid advice guideline for the diagnosis and treatment of 2019 novel coronavirus(2019-nCoV)infected pneumonia(standard version)";now there are many direct evidences emerged and may change some of previous recommendations and it is ripe for develop an evidence-based *** formed a working group of clinical experts and *** steering group members proposed 29 questions that are relevant to the management of COVID-19 covering the following areas:chemoprophylaxis,diagnosis,treatments,and discharge *** searched the literature for direct evidence on the management of COVID-19,and assessed its certainty generated recommendations using the Grading of Recommendations,Assessment,Development and Evaluation(GRADE)*** were either strong or weak,or in the form of ungraded consensus-based ***,we issued 34 *** them,6 were strong recommendations for,14 were weak recommendations for,3 were weak recommendations against and 11 were ungraded consensus-based *** covered topics of chemoprophylaxis(including agents and Traditional Chinese Medicine(TCM)agents),diagnosis(including clinical manifestations,reverse transcription-polymerase chain reaction(RT-PCR),respiratory tract specimens,IgM and IgG antibody tests,chest computed tomography,chest X-ray,and CT features of asymptomatic infections),treatments(including lopinavirritonavir,umifenovir,favipiravir,interferon,remdesivir,combination of antiviral drugs,hydroxychloroquine/chloroquine,interleukin-6 inhibitors,interleukin-1 inhibitors,glucocorticoid,qingfei paidu decoction,lianhua qingwen granules/capsules,convalescent plasma,lung

关键词： COVID-19 SARS-CoV-2 Recommendation Chemoprophylaxis Diagnosis Treatment Discharge management Traditional Chinese medicine guideline

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载多柔比星微球可注射骨水泥的特征

中国组织工程研究与临床康复 2008年第36期12卷 7027-7030页

作者：薛忠林张辉靳安民于博闵少雄敖俊南方医科大学珠江医院骨科广东省广州市510280

背景：磷酸钙骨水泥和药物微球都是很好的药物载体，那么在磷酸钙骨水泥中加入药物微球，能否达到双重缓释的特性，能否产生更有益的作用值得探讨。目的：观察复合抗肿瘤药物微球对自制可注射磷酸钙骨水泥理化性质的变化。设计、时间及... 详细信息

背景：磷酸钙骨水泥和药物微球都是很好的药物载体，那么在磷酸钙骨水泥中加入药物微球，能否达到双重缓释的特性，能否产生更有益的作用值得探讨。目的：观察复合抗肿瘤药物微球对自制可注射磷酸钙骨水泥理化性质的变化。设计、时间及地点：对比观察支架材料生物相容性实验，于2008—05—12／2008-06—05在华南理工大学材料学院教育部重点实验室完成。材料：可注射磷酸钙骨水泥粉末由华南理工大学叶建东教授提供，多柔比星由江苏恒瑞制药公司提供，多柔比星微球由华南理工大学任力教授馈赠，粒径40～60μm。方法：将2mL水加入5g骨水泥粉中，然后迅速将干燥的0．12多柔比星微球加入其中，搅拌均匀成糊状后推入预制磨具中制备成直径0．18cm，高1．12cm的柱状载微球骨水泥，两断端平行，打磨光滑平整，同时制备不载多柔比星的空白对照组、多柔比星原药对照组。主要观察指标：观察骨水泥固化时间、抗压强度及微结构改变。结果：与空白对照组比较，载入药物和微球后，骨水泥的固化时间明显延长（P〈0．05），抗压强度明显下降（P〈0．05），多柔比星药物微球与磷酸钙骨水泥粉末混合组下降更明显。电镜扫描示，药物复合后磷酸钙骨水泥大体结构无明显改变，而载入微球后磷酸钙骨水泥空隙明显增多、增大，孔径约为40μm，药物微球粒径较大，达40～60μm，结论：药物和微球载入骨水泥会使其强度降低，孔隙率增大，凝结时间延长。

关键词：磷酸钙骨水泥多柔比星微球理化性质

双尺度低氮燃烧器在三菱1175 t/h锅炉的应用

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华北电力技术 2014年第1期 40-43页

作者：郝剑彰金宝邵建林谢占军神华国华三河发电有限责任公司河北三河065201

为降低火力发电厂氮氧化物排放水平,三河发电公司在进行锅炉烟气脱硝处理的同时,对锅炉燃烧系统进行了双尺度低氮燃烧器改造,改造涉及主燃烧器和分离燃尽风（SOFA）两部分,改造后进行了燃烧调整试验,使锅炉氮氧化物排放浓度较改造前降... 详细信息

为降低火力发电厂氮氧化物排放水平,三河发电公司在进行锅炉烟气脱硝处理的同时,对锅炉燃烧系统进行了双尺度低氮燃烧器改造,改造涉及主燃烧器和分离燃尽风（SOFA）两部分,改造后进行了燃烧调整试验,使锅炉氮氧化物排放浓度较改造前降低50％～ 70％,达到了预期效果.但调整过程中也出现了再热气温低于设计值的情况,还需要进一步优化和调整,以期达到在控制氮氧化物排放浓度的同时保证机组效率.

关键词：双尺度燃烧技术低氮燃烧器氮氧化物排放

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原位成孔骨水泥的体外降解与强度变化的关系

山东医药 2009年第8期49卷 9-11页

作者：薛忠林张辉靳安民叶建东任力于博闵少雄敖俊南方医科大学珠江医院广东广州510280 华南理工大学

目的探讨复合聚乳酸羟基乙酸共聚物(PLGA)微球对自制可注射磷酸钙骨水泥(CPC)理化性质的影响及其相互关系。方法将PLGA微球与CPC复合,检测其固化时间、可注射性能、重量丢失、体外降解、抗压强度及微结构改变,并构建重量丢失和抗压强度... 详细信息

目的探讨复合聚乳酸羟基乙酸共聚物(PLGA)微球对自制可注射磷酸钙骨水泥(CPC)理化性质的影响及其相互关系。方法将PLGA微球与CPC复合,检测其固化时间、可注射性能、重量丢失、体外降解、抗压强度及微结构改变,并构建重量丢失和抗压强度之间的关系。结果载入药物和微球后,骨水泥的固化时间延长,可注射性能提高,抗压强度下降。电镜示药物复合后CPC大体结构无明显改变,而载入微球后空隙明显增多、增大。CPC/PLGA强度的降低与质量丢失呈负相关。结论CPC与微球复合时会导致其强度的减弱,这一点或许可以通过控制微球的降解来解决。

关键词：磷酸钙骨水泥聚乳酸羟基乙酸共聚物微球强度变化