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Measurement of Br(n,γ)cross sections up to stellar s-process temperatures at the CSNS Back‑n

Nuclear Science and Techniques 2023年第11期34卷 226-241页

作者： Gao‑Le Yang Zhen‑dong An Wei Jiang Xian‑kai li Wei‑Wei Qiu Zheng‑Fa liao Zi‑Yue Zhuang xiao‑Ping zhang Sheng‑li Chen Chen‑Chen Guo Er‑Xi xiao xiao Fang Xin‑Xiang li Xin‑Rong Hu Bing Jiang Jin‑Cheng Wang Jie Ren Wen luo Zhi‑Chao Zhu Hao‑Yang Lan Zong‑Wei Cao Xu Ma Ying‑Du liu Pu‑Sen Wang Yi Yang Ping Su Xian‑Gai Deng Wan‑Bing He Chun‑Wang Ma Yu‑Ting Wang Zhi‑Tao Dai Peng‑Qin He Ren‑Guang Tang Tao Zhou Jing Wang Han Yi Yue zhang Yong‑Hao Chen Rui‑Rui Fan Ke‑Qing Gao Qiang li Kang Sun Zhi‑Xin Tan Min‑Hao Gu Han‑Tao Jing Jing‑Yu Tang School of Physics and Astronomy Sun Yat-sen UniversityZhuhai 519082China Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China State Key Laboratory of Lunar and Planetary Sciences Macao University of Science and TechnologyMacao 999078China CNSA Macao Center for Space Exploration and Science Macao 999078China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Spallation Neutron Source Science Center Dongguan 523803China School of Nuclear Science and Technology University of South ChinaHengyang 421001China Sino‑French Institute of Nuclear Engineering and Technology Sun Yat-sen UniversityZhuhai 519082China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China School of Materials Science and Engineering Xiangtan UniversityXiangtan 411100China Key Laboratory of Nuclear Physics and Ion‑beam Application(MOE) Institute of Modern PhysicsDepartment of Nuclear Science and TechnologyFudan UniversityShanghai 200433China Institute of Particle and Nuclear Physics Henan Normal UniversityXinxiang 453007China School of Physics Henan Normal UniversityXinxiang 453007China Shenzhen Center Cancer hospitalChinese Academy of Medical SciencesShenzhen 518100China School of Nuclear Science and Technology University of Science and Technology of ChinaHefei 230027China

The neutron capture cross sections(n,γ)of bromine were obtained using the time-of-flight technique at the Back-n facility of the China Spallation Neutron ***γ-rays originating from neutron-induced capture events were detected using four C_(6)D_(6) *** pulse-height weighting technique and double-bunch unfolding method based on Bayesian theory were used in the data *** deductions,normalization,and corrections were carefully considered to obtain reliable measurement *** multilevel R-matrix Bayesian code SAMMY was used to extract the resonance parameters in the resolved resonance region(RRR).The average cross sections in the unresolved resonance region(URR)were obtained from 10 to 400 *** experimental results were compared with data from several evaluated libraries and previous experi-ments in the RRR and *** TALYS code was used to describe the average cross sections in the *** astrophysical Maxwell average cross sections(MACSs)of ^(79,81)Br from kT=5 to 100 keV were calculated over a sufficiently wide range of neutron *** a thermal energy of kT=30 keV,the MACS value for ^(79)Br 682±68 mb was in good agreement with the KADoNiS v1.0 recommended *** contrast,the value of 293±29 mb for ^(81)Br was substantially higher than that of the evaluated database and the KADoNiS v1.0 recommended value.

关键词： Time-of-flight technique Neutron capture cross sections Maxwell average cross sections

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新型静电聚结器中水滴聚结特性研究

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高校化学工程学报 2012年第2期26卷 222-227页

作者：杨东海何利民罗小明张海龙中国石油大学(华东)储运与建筑工程学院山东青岛266555

传统电脱水器采用裸电极,含水率较高时在高强电场作用下容易发生击穿现象,今设计了包覆绝缘层的高压电极并加工了新型静电聚结器,可有效避免击穿现象的发生。采用水/原油乳状液为实验介质,并利用显微高速摄像系统结合图像处理技术对水... 详细信息

传统电脱水器采用裸电极,含水率较高时在高强电场作用下容易发生击穿现象,今设计了包覆绝缘层的高压电极并加工了新型静电聚结器,可有效避免击穿现象的发生。采用水/原油乳状液为实验介质,并利用显微高速摄像系统结合图像处理技术对水滴的聚结规律进行了观察和分析,探索了电场强度、流量、含水率等因素对水滴聚结特性的影响。结果表明:包覆绝缘层的高压电极可有效防止电击穿现象的发生,增加电场强度有助于油水分离,但高于临界场强后容易导致液滴破碎;含水率为10%、20%、30%时,最优电场强度不同,分别是372、320和204 kV m 1;含水率10%和30%乳化物液滴粒径增大倍数明显大于含水率20%的工况;电场作用时间影响液滴聚结效果,高强电场在低流量下具有很显著的作用;随着流量的增加电场作用降低,但高强电场在高流量下依然使液滴粒径明显增大。

关键词：油包水电聚结器液滴电场强度含水率

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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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Timing analysis of the black hole candidate EXO 1846–031 with Insight-HXMT monitoring

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Research in Astronomy and Astrophysics 2021年第3期21卷 193-204页

作者： He-Xin liu Yue Huang Guang-Cheng xiao Qing-Cui Bu Jin-Lu Qu Shu zhang Shuang-Nan zhang Shu-Mei Jia Fang-Jun Lu Xiang Ma lian Tao Wei zhang li Chen li-ming Song Ti-Pei li Yu-Peng Xu Xue-Lei Cao Yong Chen Cong-Zhan liu Ce Cai Zhi Chang Gang Chen Tian-Xiang Chen Yi-Bao Chen Yu-Peng Chen Wei Cui Wei-Wei Cui Jing-Kang Deng Yong-Wei dong Yuan-Yuan Du Min-Xue Fu Guan-Hua Gao He Gao Min Gao ming-Yu Ge Yu-dong Gu Ju Guan Cheng-Cheng Guo Da-Wei Han Jia Huo Lu-Hua Jiang Wei-Chun Jiang Jing Jin Yong-Jie Jin ling-Da Kong Bing li Cheng-Kui li Gang li Mao-Shun li Wei li Xian li xiao-Bo li Xu-Fang li Yang-Guo li Zheng-Wei li xiao-Hua liang Jing-Yuan liao Bai-Sheng liu Guo-Qing liu Hong-Wei liu xiao-Jing liu Yi-Nong liu Bo Lu Xue-Feng Lu Qi luo Tao luo Bin Meng Yi Nang Jian-Yin Nie Ge Ou Na Sai Ren-Cheng Shang Xin-Ying Song liang Sun Ying Tan You-li Tuo Chen Wang Guo-Feng Wang Juan Wang ling-Jun Wang Weng-Shuai Wang Yu-Sa Wang Xiang-Yang Wen Bai-Yang Wu Bo-Bing Wu Mei Wu Shuo xiao Shao-lin Xiong He Xu Jia-Wei Yang Sheng Yang Yan-Ji Yang Yi-Jung Yang Qi-Bin Yi Qian-Qing Yin Yuan You Ai-Mei zhang Cheng-Mo zhang Fan zhang Hong-Mei zhang Juan zhang Tong zhang Wan-Chang zhang Wen-Zhao zhang Yi zhang Yi-Fei zhang Yong-Jie zhang Yuan-Hang zhang Yue zhang Zhao zhang Zhi zhang Zi-liang zhang Hai-Sheng Zhao xiao-Fan Zhao Shi-Jie Zheng Yao-Guang Zheng Deng-Ke Zhou Jian-Feng Zhou Yu-Xuan Zhu Ren-lin Zhuang Yue Zhu Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Chinese Academy of SciencesBeijing 100049China Institut fur Astronomie und Astrophysik Kepler Center for Astro and Particle PhysicsEberhard Karls Universität72076 TubingenGermany Department of Astronomy Beijing Normal UniversityBeijing 100088China Department of Astronomy Tsinghua UniversityBeijing 100084China Department of Physics Tsinghua UniversityBeijing 100084China Department of Engineering Physics Tsinghua UniversityBeijing 100084China Key Laboratory of Space Astronomy and Technology National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China College of Physics Sciences&Technology Hebei UniversityBaoding 071002Hebei ProvinceChina

We present the observational results from a detailed timing analysis of the black hole candidate EXO 1846-031 during its outburst in 2019 with the observations of Insight-HXMT,NICER and *** outburst can be classified roughly into four different ***-C quasi-periodic oscillations(QPOs)observed by NICER(about 0.1-6 Hz)and Insight-HXMT(about 0.7-8 Hz)are also reported in this ***,we study various physical quantities related to QPO *** QPO rms-frequency relationship in the energy band 1-10 keV indicates that there is a turning pointing in frequency around2 Hz,which is similar to that of GRS 1915+105.A possible hypothesis for the relationship above may be related to the inclination of the source,which may require a high inclination to explain *** relationships between QPO frequency and QPO rms,hardness,total fractional rms and count rate have also been found in other transient sources,which can indicate that the origin of type-C QPOs is non-thermal.

关键词： X-ray binaries black hole candidate QPO EXO 1846–031

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Diagnosis,treatment and prevention of severe acute respiratory syndrome coronavirus 2 infection in children:experts'consensus statement updatedforthe Omicron variant

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World Journal of Pediatrics 2024年第3期20卷 272-286页

作者： Rong-Meng Jiang Zheng-De Xie Yi Jiang xiao-Xia Lu Run-ming Jin Yue-Jie Zheng Yun-xiao Shang Bao-Ping Xu Zhi-Sheng liu Gen Lu Ji-Kui Deng Guang-Hua liu xiao-Chuan Wang Jian-She Wang Lu-Zhao Feng Wei liu Yi Zheng Sai-Nan Shu Min Lu Wan-Jun luo Miao liu Yu-Xia Cui Le-Ping Ye A-dong Shen Gang liu li-Wei Gao li-Juan Xiong Yan Bai li-kai lin Zhuang Wei Feng-Xia Xue Tian-You Wang dong-Chi Zhao Jian-Bo Shao Daniel Kwok-keung Ng Gary Wing-kin Wong Zheng-Yan Zhao Xing-Wang li Yong-Hong Yang Kun-ling Shen Diagnosis and Treatment Center of Infectious Diseases Beijing Ditan HospitalCapital Medical UniversityBeijing 100015China Beijing Key Laboratory of Pediatric Respiratory Infection Diseases Key Laboratory of Major Diseases in ChildrenMinistry of EducationNational Clinical Research Center for Respiratory DiseasesResearch Unit of Critical Infection in ChildrenChinese Academy of Medical Sciences2019RU016Laboratory of Infection and VirologyBeijing Pediatric Research InstituteBeijing Children's HospitalCapital Medical UniversityNational Center for Children's HealthBeijing 100045China Department of Pediatrics Renmin Hospital of Wuhan UniversityWuhan 430060China Department of Respiratory Wuhan Children's HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430016China Department of Pediatrics Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022China Department of Respiratory Shenzhen Children's HospitalShenzhen 518038China Department of Pediatric Respiratory Shengjing Hospital Affiliated to China Medical UniversityShenyang 110004China Department of Respiratory Beijing Children's HospitalCapital Medical UniversityNational Clinical Research Center for Respiratory DiseasesNational Center for Children's HealthBeijing 100045China Department of Neurology Wuhan Children's HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430016China Department of Respiratory Guangzhou Women and Children's Medical CenterGuangzhou 510623China Department of Infectious Diseases Shenzhen Children's HospitalShenzhen 518038China Department of Pediatrics Fujian Branch of Shanghai Children's Medical CenterFujian Children's HospitalFuzhou350005China Department of Clinical Immunology and Allergy Children's Hospital of Fudan UniversityNational Center for Children's HealthShanghai 201102China Department of Infectious Diseases Children's Hospital of Fudan UniversityNational Center for Children's Health.Shanghai

It has been more than 3 years since the novel coronavirus(SARS-CoV-2)pandemic raged *** coronavirus disease 2019(COVID-19)has greatly influenced human *** to data from the World Health Organization(WHO),there were ove... 详细信息

关键词： prevention infection statement

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等离子体鞘套宽带微波反射诊断方法

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物理学报 2022年第23期71卷 317-328页

作者：杨敏王佳明齐凯旋李小平谢楷张琼杰刘浩岩董鹏西安电子科技大学空间科学与技术学院极端环境下信息与装备效能教育部重点实验室西安710071

飞行器再入过程中会产生一层包裹在其表面的等离子体鞘套,导致通信质量恶化,甚至中断,形成“黑障”现象.多年来“黑障”问题一直困扰着航空航天行业,其中一个非常重要的原因是,对等离子体鞘套测量上的局限导致对通信传输环境认知不足.所... 详细信息

飞行器再入过程中会产生一层包裹在其表面的等离子体鞘套,导致通信质量恶化,甚至中断,形成“黑障”现象.多年来“黑障”问题一直困扰着航空航天行业,其中一个非常重要的原因是,对等离子体鞘套测量上的局限导致对通信传输环境认知不足.所以,实现鞘套参数的在线原位测量是高超声速飞行器“黑障”问题研究中的关键.本文设计了一种用于再入等离子体鞘套诊断的宽带微波反射方法,通过理论推导得到宽带微波反射数据与等离子体参数之间的关系,进行有效诊断频点选择.再利用所选有效频点的反射数据反推得到等离子体参数,实现电子密度和碰撞频率的同时诊断测量.建立仿真模型并搭建实验平台,对该方法进行了仿真分析和地面实验验证,验证了该方法的有效性.该方法能够对再入飞行器或高超声速飞行器的等离子体鞘套实时诊断提供技术支撑.

关键词：等离子鞘套谐振点参数诊断微波反射法

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考虑投影畸变设计大口径离轴非球面检测用计算全息图

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光学精密工程 2015年第5期23卷 1246-1253页

作者：李明罗霄薛栋林赵晶丽郑立功张学军中国科学院长春光学精密机械与物理研究所中国科学院光学系统先进制造技术重点实验室吉林长春130033 中国科学院大学北京100049

对大口径离轴非球面进行零位补偿检测时,投影畸变过于严重的区域会由于干涉条纹密度过大而无法检测,从而使加工难以进行。针对此问题,本文采用相对畸变参数定量描述投影畸变,设计了自由度更高、补偿能力更强的计算全息图(CGH)检测方法... 详细信息

对大口径离轴非球面进行零位补偿检测时,投影畸变过于严重的区域会由于干涉条纹密度过大而无法检测,从而使加工难以进行。针对此问题,本文采用相对畸变参数定量描述投影畸变,设计了自由度更高、补偿能力更强的计算全息图(CGH)检测方法。该方法在CGH设计阶段考虑投影畸变分布,选择合适的光路结构使得所有区域的投影畸变均较小。根据此方法,对直径为1.45m的离轴非球面设计了比零位补偿器畸变小的CGH。检测实验显示:使用设计的CGH可检测非球面的全口径面形误差,验证了在CGH设计阶段考虑投影畸变的正确性与实用性,表明该方法可解决加工过程中零位补偿器由于投影畸变导致部分区域不能检测的问题。以CGH的检测结果为指导,目前该1.45m直径的离轴非球面加工精度已达0.374λPV,0.023λRMS。

关键词：投影畸变大口径离轴非球面计算全息图光学检测

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Effect and Safety of Herbal Medicine Foot Baths in Patients with Diabetic Peripheral Neuropathy:A Multicenter Double-Blind Randomized Controlled Trial

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Chinese Journal of Integrative Medicine 2024年第3期30卷 195-202页

作者： HUANG Hao-yue liN Yu-ping WEI Hua FU Yu ZHOU Yue-hong FANG Zhao-hui QIU xiao-tang WANG Mei li Qing-bo li Shan-shan WANG Shi-dong DAI Fang liU Zhen-jie ZHAO ling WEN Jian-xuan WU li-yan ZENG Hui-yan zhang Jin-ming LU Qi-yun HE liu SONG Wei SUN Lu luo Lu-lu HE Jia-li XIE Wen-wen liANG Qing-shun HUANG Yuan ZHU Sheng-ling LONG Jie-er GAO Zhi-juan WEN Ze-huai li Chun-ji OUYANG Wen-wei li Geng WU ming-hui li An-xiang HUANG Jin-zhu Sanjoy K Paul TANG Xian-yu FAN Guan-jie Department of Endocrinology Guangdong Provincial Hospital of Chinese MedicineGuangzhou510120China The Second Clinical College of Guangzhou University of Chinese Medicine Guangzhou510120China Department of Endocrinology The Second Affiliated Hospital of Guangzhou University of Chinese MedicineGuangzhou510120China Guangdong Provincial Academy of Chinese Medical Sciences Guangzhou510120China Department of Endocrinology The First Affiliated Hospital of Henan University of Chinese MedicineZhengzhou450000China Department of Endocrinology Liuyang Hospital of Chinese MedicineChangsha410000China Department of Endocrinology The First Affiliated Hospital of Anhui University of Chinese MedicineHefei230000China Department of Endocrinology Hainan Provincial Hospital of Traditional Chinese MedicineHaikou570100China Department of Endocrinology The Affiliated Hospital of Liaoning University of Traditional Chinese MedicineShenyang110000China Department of Geriatric Luoyang No.1 Hospital of Traditional Chinese MedicineLuoyangHenan Province471000China Department of Endocrinology The Second Affiliated Hospital of Guizhou University of Traditional Chinese MedicineGuiyang550000China Department of Endocrinology Beijing University of Chinese Medicine Affiliated Dongzhimen HospitalBeijing100000China Department of Endocrinology The First Affiliated Hospital of Guizhou University of Traditional Chinese MedicineGuiyang550000China Melbourne EpiCentre The University of Melbourne and Melbourne HealthMelbourne3013Australia

Objective:To evaluate the effect and safety of foot baths with Tangbi Waixi Decoction(TW)in treating patients with diabetic peripheral neuropathy(DPN).Methods:It is a multicenter double-blinded randomized controlled *** with DPN were recruited between November 18,2016 and May 30,2018 from 8 hospitals in *** patients received basic treatments for glycemic *** received foot baths with TW herbal granules either 66.9 g(intervention group)or 6.69 g(control group)for 30 min once a day for 2 weeks and followed by a 2-week rest,as a therapeutic *** the Toronto Clinical Scoring System total score(TCSS-TS)6 points,the patients received a total of 3 therapeutic courses(for 12 weeks)and were followed up for 12 *** primary outcome was change in TCSS-TS score at 12 and 24 *** outcomes included changes in bilateral motor nerve conduction velocity(MNCV)and sensory nerve conduction velocity(SNCV)of the median and common peroneal *** was also ***:Totally 632 patients were enrolled,and 317 and 315 were randomized to the intervention and control groups,*** the 12-week intervention,patients in both groups showed significant declines in TCSSTS scores,and significant increases in MNCV and SNCV of the median and common peroneal nerves compared with pre-treatment(P0.05),and no serious adverse event was related with ***:Treatment of TW foot baths was safe and significantly benefitted patients with DPN.A low dose of TW appeared to be more effective than a high dose.(Registry *** CTR-IOR-16009331)

关键词： diabetic peripheral neuropathy herbal medicine foot baths Chinese medicine randomized controlled trial Tangbi Waixi Decoction

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氘氚冰籽晶的形核行为

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物理学报 2022年第2期71卷 204-209页

作者：张伟光张凯奋夏立东黄鑫周晓松彭述明施立群复旦大学核物理与离子束应用教育部重点实验室上海200433 中国工程物理研究院核物理与化学研究所绵阳621900

为了实现激光约束核聚变(ICF)的自持聚变目标,对靶壳内氘氚冰的质量提出了极其苛刻的要求,冰层内表面和靶壳的同心度要求大于99.9%,冰层内表面均方根粗糙度(RMS)优于1μm.高质量的冷冻氘氚靶建立在靶壳内高质量氘氚冰层的前提之上.单晶... 详细信息

为了实现激光约束核聚变(ICF)的自持聚变目标,对靶壳内氘氚冰的质量提出了极其苛刻的要求,冰层内表面和靶壳的同心度要求大于99.9%,冰层内表面均方根粗糙度(RMS)优于1μm.高质量的冷冻氘氚靶建立在靶壳内高质量氘氚冰层的前提之上.单晶是冰层的最好形态,在靶壳内获得氘氚冰籽晶是基础条件.本文通过采用逐渐降低升温速率的台阶控温方法,开展了充气微管内保留籽晶的研究,揭示了充气微管内保留籽晶的形核机理,实验结果表明,利用充气管口可保留稳定、单一的籽晶,在相同的过冷度下,当氘氚籽晶c轴方向与充气管轴向平行时,生长速度较c轴垂直于充气管轴向时的速度慢约1—2个量级,为获得高质量的籽晶从而形成高质量的氘氚冰提供了参考和支撑.

关键词：氘氚冰形核聚变靶

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基于自反馈光注入结构的双波长可调谐掺Er^3＋光纤激光器

引用

光电子．激光 2014年第6期25卷 1080-1085页

作者：何巍祝连庆娄小平董明利张荫民骆飞陈晓怀合肥工业大学仪器科学与光电工程学院安徽合肥230009 北京信息科技大学光电信息与仪器北京市工程研究中心光电测试技术北京市重点实验室北京100192

为了实现可调谐双波长激光输出,提出并设计了一种基于自反馈光注入结构的掺Er3+光纤(EDF)激光器,并对激光器的基本原理及实现方案进行了理论分析和实验验证。系统结构设计采用976nm波长的LD作为泵浦源,结合EDF,两支光纤布拉格光栅(FBG)... 详细信息

为了实现可调谐双波长激光输出,提出并设计了一种基于自反馈光注入结构的掺Er3+光纤(EDF)激光器,并对激光器的基本原理及实现方案进行了理论分析和实验验证。系统结构设计采用976nm波长的LD作为泵浦源,结合EDF,两支光纤布拉格光栅(FBG)和光纤环形镜(FLM)产生激光,并通过在FLM中熔接饱和吸收体(SA)起到稳频作用;将FLM输出激光耦合进入谐振腔形成自注入结构,与腔内振荡激光形成干涉,抑制模式跳变;通过控制两支FBG之间的可调谐衰减器调节谐振腔内的增益和损耗,实现单个波长或双波长输出。实验结果表明:SA长采用4m、EDF长采用6m时,激光输出阈值为28mW,将反馈光注入谐振腔后,系统阈值为25mW,输出激光波长随时间漂移得到明显抑制;当泵浦光功率为80mW时,通过调节位于两支FBG之间的可调谐衰减器(VA)获得稳定的双波长激光输出;随着泵浦功率增加,激光输出功率具有良好的线性度和稳定性。在1 540nm波长处激光输出最大功率为1.16mW,信噪比(SNR)大于50dB;在1 545nm波长处激光输出最大功率为1.89mW,SNR大于50dB。

关键词：双波长光纤激光器自反馈光注入掺Er^3+光纤(EDF) 饱和吸收体(SA)

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