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Chinese Chemical Letters 2011年第12期22卷 1411-1414页

作者： Pu hua Wu qing qing Meng hu Chen Zhou School of Pharmacy Shanghai Jiaotong University Shanghai 200240 China

A novel pyrrolo-benzoxaborole,6-（pyrrol-1-yl）-1,3-dihydro-1-hydroxy-2,1-benzoxaborole,was synthesized with 27%overall yield over six steps from 2-bromo-1-methyl-4-nitrobenzene as starting *** derivatization was achieved via Friedel-Crafts reaction catalyzed by anhydrous stannic chloride with various acyl chlorides giving 3-acyl-1-phenylpyrroles as the main products.

关键词： Benzoxaborole Friedel-Crafts reaction Stannic chloride 3-Acyl-1-arylpyrrole

Effective corrosion protection of magnetic microwave absorber with designed macromolecular network barrier

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Rare Metals 2023年第2期42卷 558-571页

作者： qing-qing hu Liang Chai Ke Liang Yan-Xin Jiang Guang Yang Lin-Bo Zhang Liang-Jun Yin Xin Wang Tao Liu Hai-Peng Lu Long-Jiang Deng School of Electronic Science and Engineering and National Engineering Research Center of Electromagnetic Radiation Control Materials University of Electronic Science and Technology of ChinaChengdu611731China

Carbonyl iron(CI)particles as magnetic microwave absorption material often suffer from serious corrosion under corrosive environment which leads to performance *** this study,fluorin-containing acrylate type polymer network layers with thickness ranging from tens of nanometers to around one hundred nanometers were formed continuously around *** crosslinked coating layer(named FT)effectively increases CI’s thermal decomposition temperature by at least 34%.The FT-coated CI(named CI-FT)was able to resist both inorganic and organic corrosive media attacking efficiently compared with bare *** surface polymer network could also help CI withstand organic medium dissolution which proved the firmness of *** voltammetry(CV)test revealed that the coating layer could significantly reduce maximum oxidation current density of CI by more than 45 *** polarization study during CV tests also confirmed that thicker FT coating layer could help CI sample stabilize corrosion current ***,the surface coating also enhanced the impedance matching properties of CI as microwave absorber and the CI-FT samples demonstrated improved microwave absorption properties which degenerated little after corrosive medium soaking compared with that of CI.

关键词： Carbonyl iron(CI) Corrosion protection Microwave absorption Fluorin-containing acrylate Cyclic voltammetry Corrosion process

An effective pumping method for increasing atomic utilization in a compact cold atom clock

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Chinese Physics B 2021年第8期30卷 317-321页

作者： Xin-Chuan Ouyang Bo-Wen Yang Jian-Liao Deng Jin-Yin Wan Ling Xiao Hang-Hang Qi qing-qing hu hua-Dong Cheng Key Laboratory of Quantum Optics and Center of Cold Atom Physics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Advanced Interdisciplinary Technology Research Center National Innovation Institute of Defense TechnologyBeijing 100010China

We propose a simple pumping method to increase the effective population of cold atoms in the clock state and investigate the factors which affect the pumping efficiency in cold atom *** report the theory and demonstrate the corresponding experiment in an ^(87)Rb integrating sphere cold atom *** experimental results show that the population of cold atoms in the Zeeman sublevel|F=2,mF=0>is approximately 1.62 times that of the result using optical pumping *** method can also be applied to increase the effective population in any one of the target Zeeman sublevels in other cold atom systems.

关键词： optical pumping Zeeman sublevels atomic utilization

Triple antithrombotic therapy versus double antiplatelet therapy after percutaneous coronary intervention with stent implantation in patients requiring chronic oral anticoagulation： a meta-analysis

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Chinese Medical Journal 2013年第13期126卷 2536-2542页

作者： Jayswal Saheb K DENG Bing-qing hu qing-song XIE Shuang-lun GENG Deng-feng NIE Ru-qiong Department of Cardiovascular Medicine Sun Yat-Sen Memorial Hospital Sun Yat-Sen University Guangzhou Guangdong 510120 China

Background Whether an addition of OAC to double antiplatelet therapy for patients with an indication of chronic oral anticoagulation undergoing PCI-S may improve clinical outcomes is still debated. This meta-analysis aimed to update and re-compare the benefits and risks of triple antithrombotic therapy （TT） with double anti-platelet therapy （DAPT） after in patients who requiring oral anticoagulation after percutaneous coronary interventions with stenting （PCI-s）. Methods Ten reports of observational retrospective or prospective studies were retrieved, including a total of 6296 patients, follow-up period ranging from 1 year to 2 years. Results Baseline characteristics were similar in both groups. The main finding of this study is the overall incidence of major adverse cardiovascular events （MACE）, myocardial infarction （MI） and stent thrombosis was comparable between two groups. Patients with TT was associated with significant reduction in ischemic stroke （OR： 0.27; 95% CI： 0.13-0.57; P=0.0006） as compared to DAPT. We reaffirmed triple therapy significantly increased the risk of major bleeding （OR： 1.47; 95% CI： 1.22-1.78; P 〈0.0001） and minor bleeding （OR： 1.55; 95% CI： 1.07-2.24; P=-0.02）. Conclusions Triple therapy is more efficacious in reducing the occurrence of ischemic stroke in PCI-s patients with an indication of chronic oral anticoagulation （OAC）, compared with DAPT. However, it significantly increased major and minor risk of bleeding. It is imperative that further prospective randomized controlled trials are required to define the best therapeutic strateav for patients with an indication of chronic OAC underaoina PCI-s.

关键词： triple antithrombotic therapy, double antiplatelet therapy percutaneous coronary intervention chronic oral anticoagulation meta-analysis

Effect of additives on growth of ferronickel grains and metal-slag separation behavior

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Transactions of Nonferrous Metals Society of China 2022年第10期32卷 3459-3468页

作者： Dong-lai MA Jian-bo ZHAO qing-qing hu Xue-ming LÜ Yang YOU Zhi-xiong YOU Xue-wei LÜ College of Materials Science and Engineering Chongqing UniversityChongqing 400044China Chongqing Key Laboratory of Vanadium–Titanium Metallurgy and Advanced Materials Chongqing UniversityChongqing 400044China

Na_(2)S,Na_(2)CO_(3),FeO,FeS and carbon were used to regulate the properties of slag or metal fractions,and their effects on metal growth and metal–slag separation behavior were *** growth of ferronickel grains can be enhanced by adding these additives,and Na_(2)S was the most ***_(2)S,Na_(2)CO_(3) and FeO mainly affected the properties of slag,while carbon and FeS affected the metal *** onset temperature of metal–slag separation was 1297℃ for the sample without additive,which was decreased to 1123 and 1101℃ after adding 3.30 wt.%Na_(2)S and 4.47 wt.%Na_(2)CO_(3),*** onset temperature of metal–slag separation was mainly controlled by the slag *** average apparent activation energy of metal grain growth was 125.32 kJ/mol without additive,and it decreased obviously after adding different ***_(2)S also had the most remarkable effect on the decrease in activation energy.

关键词： nickel laterite ore slag properties metal growth metal–slag separation kinetics

Investigation and Analysis on the Selecting and Obtaining Employment of New Generation Migrant workers——A case of Yudu County,Jiangxi Province

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Asian Agricultural Research 2011年第5期3卷 67-73页

作者： QIN Xiu-qing,hu qing-lin School of Literal Arts and Law,Jiangxi University of Science and Technology,Ganzhou 341000,China

The paper conducts an investigation on the new generation migrant workers in view of the selecting and obtaining employment of new generation migrant workers in industrial zone of Yudu County,Ganzhou Province during the period from June 23,2010 to June 27,*** basic situation of the selecting and obtaining employment of new generation migrant workers,the expectation and career goals is *** chief problems confronted by the selecting and obtaining employment of migrant workers are *** problems cover substandard employment of enterprises;unsatisfying working and living conditions of new generation migrant workers;the knowledge and technology of new generation migrant workers lag behind the demand of enterprises;the new generation migrant workers lack the spirit of bearing hardships and hard work;new generation migrant workers do not have clear career plan and their demands on studying and training are hard to be materialized;restricted by household registration system,the new generation migrant workers can not enter into their *** and suggestions on solving the selecting and obtaining of new generation migrant workers are put ***,perfecting the relevant laws and regulations on labors and protecting the each item of labor economic rights of new generation migrant workers;secondly,intensifying vocational training and improving the competitiveness of new generation migrant workers;thirdly,paying attention to the political education and mental health education on new generation migrant workers and launching rich and colorful cultural activities;fourthly,reinforcing the human concern and right protection on new generation migrant workers to enhance their right to say;fifthly,intensifying the reform on household registration and accelerating the process of urbanization.

关键词： New generation migrant workers Employment selectin

A five-compartment model of age-specific transmissibility of SARS-CoV-2

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Infectious Diseases of Poverty 2020年第4期9卷 35-49页

作者： Ze-Yu Zhao Yuan-Zhao Zhu Jing-Wen Xu Shi-Xiong hu qing-qing hu Zhao Lei Jia Rui Xing-Chun Liu Yao Wang Meng Yang Li Luo Shan-Shan Yu Jia Li Ruo-Yun Liu Fang Xie Ying-Ying Su Yi-Chen Chiang Ben-hua Zhao Jing-An Cui Ling Yin Yan-hua Su qing-Long Zhao Li-Dong Gao Tian-Mu Chen State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics School of Public HealthXiamen University4221-117 South Xiang'an RoadXiang'an DistrictXiamen City 361102Fujian ProvincePeople's Republic of China hunan Provincial Center for Disease Control and Prevention 405 Furong Middle Road Section OneKaifu DistrictChangsha City 410001Hunan ProvincePeople's Republic of China Division of Public Health School of MedicineUniversity of Utah201 Presidents CircleSalt Lake CityUT 84112USA Department of Mathematics School of ScienceBeijing University of Civil Engineering and ArchitectureBeijingPeople's Republic of China Shenzhen Institutes of Advanced Technology Chinese Academy of SciencesShenzhenGuangdong ProvincePeople's Republic of China Jilin Provincial Center for Disease Control and Prevention 3145 Jingyang Big RoadLvyuan DistrictChangchun 130062Jilin ProvincePeople's Republic of China

Background:The novel coronavirus,severe acute respiratory syndrome coronavirus 2(SARS-CoV-2,also called 2019-nCoV)causes different morbidity risks to individuals in different age *** study attempts to quantify the age-specific transmissibility using a mathematical ***:An epidemiological model with five compartments(susceptible-exposed-symptomatic-asymptomatic-recovered/removed[SEIAR])was developed based on observed transmission *** disease 2019(COVID-19)cases were divided into four age groups:group 1,those≤14years old;group 2,those 15 to 44years old;group 3,those 45 to 64years old;and group 4,those≥65 years *** model was initially based on cases(including imported cases and secondary cases)collected in hunan Province from January 5 to February 19,*** dataset,from Jilin Province,was used to test the ***:The age-specific SEIAR model fitted the data well in each age group(Phunan Province,the highest transmissibility was from age group 4 to 3(median:β43=7.71×10-9;SAR43=3.86×10-8),followed by group 3 to 4(median:β34=3.07×10-9;SAR34=1.53×10-8),group 2 to 2(median:β22=1.24×10-9;SAR22=6.21×10-9),and group 3 to 1(median:β31=4.10×10-10;SAR31=2.08×10-9).The lowest transmissibility was from age group 3 to 3(median:β33=1.64×10-19;SAR33=8.19×10-19),followed by group 4 to 4(median:β44=3.66×10-17;SAR44=1.83×10-16),group 3 to 2(median:β32=1.21×10-16;SAR32=6.06×10-16),and group 1 to 4(median:β14=7.20×10-14;SAR14=3.60×10-13).In Jilin Province,the highest transmissibility occurred from age group 4 to 4(median:β43=4.27×10-8;SAR43=2.13×10-7),followed by group 3 to 4(median:β34=1.81×10-8;SAR34=9.03×10-8).Conclusions:SARS-CoV-2 exhibits high transmissibility between middle-aged(45 to 64 years old)and elderly(≥65 years old)***(≤14 years old)have very low susceptibility to *** study will improve our understanding of the transmission feature of SARS-CoV-2 in different age groups and suggest the most pre

关键词： Transmissibility SARS-CoV-2 COVID-19 Compartmental model Age-specific dynamics

发展银发经济的战略设计、焦点难点及路径优化

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新疆师范大学学报（哲学社会科学版） 2025年第2期46卷 59-69,F0002页

作者：黄石松胡清中国人民大学国家发展与战略研究院北京100872 中国人民大学老年学研究所北京100872

我国正处于由中度老龄化社会步入重度老龄化社会的进程,银发经济将逐步从“以政府为主导的事业发展”阶段转向“事业和产业协同发展”的新阶段。准确把握这一转型发展特征,适时调整工作重心和节奏,注重运用市场机制推进产业发展迫在眉... 详细信息

我国正处于由中度老龄化社会步入重度老龄化社会的进程,银发经济将逐步从“以政府为主导的事业发展”阶段转向“事业和产业协同发展”的新阶段。准确把握这一转型发展特征,适时调整工作重心和节奏,注重运用市场机制推进产业发展迫在眉睫。对银发产业进行业态划分是制定产业组织政策、产业管理政策、产业发展政策的前提和基础,文本尝试将我国银发产业划分为基础性产业、延伸性产业和战略性产业,并据此分析三类产业在发展中存在的焦点难点问题,按照分类精准施策原则,提出优化我国银发经济发展路径的政策建议。

关键词：银发经济老龄产业老龄事业战略设计业态划分

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东方百合引种试验

福建林业科技 2016年第3期43卷 183-186页

作者：林冬青陈庆虎王坚平阳县住房和城乡规划建设局浙江平阳325400 平阳县林业局浙江平阳325400 浙江通力市政园林工程有限公司浙江平阳325400

以从荷兰进口的西伯利亚、索邦、梯伯、马可波罗、元帅等5个东方系列百合品种为试验材料,在温州平阳平原地带进行引种试验。结果表明:这5个东方百合品种在浙江平阳及其周边日光温室内都能正常生长、开花,生产出符合标准的鲜切花。从经... 详细信息

以从荷兰进口的西伯利亚、索邦、梯伯、马可波罗、元帅等5个东方系列百合品种为试验材料,在温州平阳平原地带进行引种试验。结果表明:这5个东方百合品种在浙江平阳及其周边日光温室内都能正常生长、开花,生产出符合标准的鲜切花。从经济效益因素考虑,可大面积发展西伯利亚、索邦、元帅等品种,适量搭配种植梯伯、马可波罗等品种,种植时期初步确定秋冬季节比春季更佳。

关键词：东方百合引种试验农艺性状叶枯病

The optimal vaccination strategy to control COVID-19:a modeling study in Wuhan City,China

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Infectious Diseases of Poverty 2021年第6期10卷 48-73页

作者： Ze-yu Zhao Yan Niu Li Luo qing-qing hu Tian-long Yang Mei-jie Chu Qiu-ping Chen Zhao Lei Jia Rui Cheng‑long Song Sheng‑nan Lin Yao Wang Jing‑wen Xu Yuan‑zhao Zhu Xing‑chun Liu Meng Yang Jie‑feng huang Wei‑kang Liu Bin Deng Chan Liu Zhuo‑yang Li Pei‑hua Li Yan-hua Su Ben-hua Zhao Wen-long huang Roger Frutos Tian-mu Chen State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics School of Public HealthXiamen University4221‑117 South Xiang’an RoadXiang’an DistrictXiamen 361102FujianPeople’s Republic of China Cirad UMR 17IntertrypUniversitéde MontpellierMontpellierFrance Chinese Center for Disease Control and Prevention BeijingPeople’s Republic of China Division of Public Health School of MedicineUniversity of UtahUtahUSA Medical Insurance Ofce Xiang’an Hospital of Xiamen UniversityXiamenFujianPeople’s Republic of China Department of Data Science College of Natural SciencesColorado State UniversityFort CollinsCOUSA Fujian Provincial Center for Disease Control and Prevention 76 Jintai RoadGulou DistrictFuzhouFujianPeople’s Republic of China

Background: Reaching optimal vaccination rates is an essential public health strategy to control the coronavirus disease 2019 (COVID-19) pandemic. This study aimed to simulate the optimal vaccination strategy to control the disease by developing an age-specific model based on the current transmission patterns of COVID-19 in Wuhan City, ***: We collected two indicators of COVID-19, including illness onset data and age of confirmed case in Wuhan City, from December 2, 2019, to March 16, 2020. The reported cases were divided into four age groups: group 1, ≤ 14 years old;group 2, 15 to 44 years old;group 3, 44 to 64 years old;and group 4, ≥ 65 years old. An age-specific susceptible-exposed-symptomatic-asymptomatic-recovered/removed model was developed to estimate the transmissibility and simulate the optimal vaccination strategy. The effective reproduction number (R_(eff)) was used to estimate the transmission interaction in different age ***: A total of 47 722 new cases were reported in Wuhan City from December 2, 2019, to March 16, 2020. Before the travel ban of Wuhan City, the highest transmissibility was observed among age group 2 (R_(eff) = 4.28), followed by group 2 to 3 (R_(eff) = 2.61), and group 2 to 4 (R_(eff) = 1.69). China should vaccinate at least 85% of the total population to interrupt transmission. The priority for controlling transmission should be to vaccinate 5% to 8% of individuals in age group 2 per day (ultimately vaccinated 90% of age group 2), followed by 10% of age group 3 per day (ultimately vaccinated 90% age group 3). However, the optimal vaccination strategy for reducing the disease severity identified individuals ≥ 65 years old as a priority group, followed by those 45-64 years ***: Approximately 85% of the total population (nearly 1.2 billion people) should be vaccinated to build an immune barrier in China to safely consider removing border restrictions. Based on these results, we concluded that 90% of adul

关键词： SARS-CoV-2 Transmissibility Age-specific model Vaccination strategy Effectiveness