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Effects of side subsurface defects induced by CNC machine on the gain spatial distribution in neodymium phosphate glass

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High Power Laser Science and Engineering 2016年第1期4卷 58-62页

作者： bingyan wang Junyong Zhang Shuang Shi Kewei You Jianqiang Zhu Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences University of Chinese Academy of Sciences

The processing method applied to the side surface is different from the method applied to the light pass surface in neodymium phosphate glass(Nd:glass), and thus subsurface defects remain after processing. The subsurface defects in the side surface influence the gain uniformity of Nd:glass, which is a key factor to evaluate the performance of amplifiers. The scattering characteristics of side subsurface defects were simulated by finite difference time domain(FDTD) Solutions software. The scattering powers of the glass fabricated by a computer numerical control(CNC)machine without cladding were tested at different incident angles. The trend of the curve was similar to the simulated result, while the smallest point was different with the complex true morphology. The simulation showed that the equivalent residual reflectivity of the cladding glass can be more than 0.1% when the number of defects in a single gridding is greater than 50.

关键词： cladding FDTD gain uniformity subsurface defect

Developmental genes during placentation:insights from mouse mutants

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Frontiers in Biology 2011年第4期6卷 300-311页

作者： Jinhua LU Qiang wang bingyan wang Fengchao wang Haibin wang State Key Laboratory of Reproductive Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China Graduate University of the Chinese Academy of Sciences Beijing 100039China

Placenta,a temporary organ first formed during the development of a new life is essential for the survival and growth of the fetus in eutherian *** serves as an interface for the exchange of nutrients,gases and wastes between the maternal and fetal *** the past decades,studies employing gene-engineered mouse mutants have revealed a wide range of signaling molecules governing the trophoblast development and function during placentation under various pathophysiological ***,we summarize the recent progress with particular respect to the involvement of developmental genes during placentation.

关键词： developmental gene placentation mouse mutant

A general and facile calcination method to synthesize single-site catalysts for highly efficient electrochemical CO_(2) reduction

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Nano Research 2024年第5期17卷 3895-3901页

作者： Rui Sui bingyan wang Yongsheng wang Jiajing Pei Wei Zhu Wenxing Chen Chunhui Li Ailing Sun Zhongbin Zhuang Engineering Research Center of Advanced Rare Earth Materials Department of ChemistryTsinghua UniversityBeijing 100084China College of Chemistry and Green Catalysis Center Zhengzhou UniversityZhengzhou 450001China State Key Lab of Organic-Inorganic Composites and Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical TechnologyBeijing 100029China Beijing Synchrotron Radiation Facility Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Energy&Catalysis Center School of Materials Science and EngineeringBeijing Institute of TechnologyBeijing 100081China

The electrochemical CO_(2) reduction reaction(CO_(2)RR)has received widespread attention as a promising method for producing sustainable chemicals and mitigating the global ***,we demonstrate a general and facile synthetic route for the metal-nitrogen-carbon(M-N-C)type catalyst by simply calcinating metal acetate and urea with commercial carbon black,which have potential application in CO_(2)*** synthesized Ni-NC-600 catalyst has the structure of single Ni atom coordinated with one N atom and three C atoms(Ni-N_(1)C_(3)),which is suggested by X-ray absorption *** Ni-NC-600 catalyst exhibits high CO_(2)RR catalytic performance and a high CO Faraday efficiency above 98%in a wide potential range from-0.7 to-1.3 V(*** hydrogen electrode(RHE)),superior to most of the reported Ni-N-C *** work has developed a facile strategy to synthesize high performance CO_(2)RR catalyst.

关键词： nickel single atom catalyst CO_(2)reduction reaction CO production electrocatalyst

Determinants of uterine aging:lessons from rodent models

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Science China(Life Sciences) 2012年第8期55卷 687-693页

作者： KONG ShuangBo ZHANG Shuang CHEN YongJie wang WeiXiang wang bingyan CHEN Qi DUAN EnKui wang HaiBin State Key Laboratory of Reproductive Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China Graduate University of Chinese Academy of Sciences Beijing 100039China

The uterus is an indispensable organ for the development of a new life in eutherian *** female mammalian reproductive capacity diminishes with *** this respect,the senescence of uterine endometrium is convinced to contribute to this *** review focuses on the physiological function of the uterus and the related influence of aging mainly in rodent models.A better understanding of the underlying mechanisms governing the process of uterine aging is hoped to generate new strategies to prolong the reproductive lifespan in humans.

关键词： determinants uterine aging rodent models

Radiofrequency catheter ablation of atrial tachycardias related to myocardial scar or incision

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Journal of Geriatric Cardiology 2006年第4期3卷 250-253页

作者： Jianqiang HU Jiang CAO Shengqiang wang Yongwen QIN bingyan ZHOU Department of Cardiology Changhai Hospital Second Military Medical University Shanghai 200433 China Department of Cardiology Changhai Hospital Second Military Medical University Shanghai 200433 China Department of Cardiology PLA 148th Hospital Zibo Shandong 255300 China Department of Cardiology Changhai Hospital Second Military Medical University Shanghai 200433 China Department of Cardiology Changhai Hospital Second Military Medical University Shanghai 200433 China

Objectives Intra-atrial re-entrant tachycardias(IARTs)are common late after heart *** mapping and ablation is relatively difficult because of the complicated anatomy and multiple potential re-entry *** this study we aimed to evaluate the electrophysiological characteristics and radiofrequency catheter ablation of atrial tachycardia(AT)induced by myocardial scar or *** In 6 patients(three male and three female,aged 33.3±11.8 years)who had AT related to myocardial scar or incision, electrophysiological study and radiofrequency catheter ablation(RFCA)were *** activation combined with entrain- ment mapping was adopted to determine a critical *** Re-entry related to the lateral atriotomy scar was inducible in 5 of 6 *** entrainment mapping,the PPI(post-pacing interval)-TCL(tachycardia cycle length)difference was＜30 ms when pacing at the inferior margins of the right lateral atriotomy *** them,3 patients had successful linear ablation between scar area to inferior vena cava,and 2 patients between scar area to tricuspid ***-entry involving an ASD patch was demonstrated in 1 of 6 ***-TCL differences＜30 ms were observed when entraining tachycardia at sites near the septal *** linear ablation failed in terminating *** was no complication during *** recurrence of AT related to incision was observed during follow-up except for the failed *** Under conventional electrophysiological mapping,adopting linear ablation from scar area to anatomic barrier,successful ablation can be obtained in patients with IRATs related to myocardial scar or incision.

关键词： atrial tachycardia radiofrequency catheter ablation heart surgery

Features of colorectal cancer in China stratified by anatomic sites:A hospital-based study conducted in university-affiliated hospitals from 2014 to 2018

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Chinese Journal of Cancer Research 2021年第4期33卷 500-511页

作者： Ruize Qu Yanpeng Ma Liyuan Tao Xiaoyuan Bao Xin Zhou bingyan wang Fei Li Siyi Lu Lin Tuo Siyan Zhan Zhipeng Zhang Wei Fu Department of General Surgery Peking University Third HospitalBeijing 100191China Clinical Epidemiology Research Center Peking University Third HospitalBeijing 100191China Medical Information Center Peking University Health Science CenterBeijing 100191China Department of Hospital Management Peking University Health Science CenterBeijing 100191China

Objective:The clinical and biological characteristics of colorectal cancer have been found to differ depending on the anatomic site of the ***,for Chinese patients,there is limited information on the proportion of cases at each site and the related *** this study,we explored the location,distribution and other features of colorectal cancers at each anatomic site in Chinese ***:We conducted a hospital-based study using hospitalization summary reports from 10 Peking University-affiliated hospitals from 2014 to 2018;the reports covered a total of 2,097,347 *** cases were chosen as the study population,and their epidemiological features were further ***:A total of 20,739 colorectal cancer patients were *** was the most common location(48.3%)of the cancer,whereas the proportions of patients with distal and proximal colon cancer were 24.5%and18.6%,*** with rectal cancer were predominantly male and were the youngest for all anatomical sites(each P<0.001).The highest proportion of emergency admissions,the longest hospital stays and the highest hospitalization costs were found in patients with proximal colon cancer(each P<0.001).The proximal colon cancer subgroup included the highest proportions of patients with medical histories of cholecystectomy,cholecystolithiasis and/or gallbladder polyps and appendectomy(P=0.009,P<0.001 and P<0.001,respectively).The distal colon cancer subgroup included the highest proportions of patients with medical histories of diabetes and hypertension(P<0.001,respectively).Conclusions:The patterns of colorectal cancer observed in this study differ from those reported for Western patients and show a significantly higher proportion of patients with rectal *** epidemiological features were also found based on anatomic *** studies based on tumor location should be conducted to facilitate more accurate screening and treatment.

关键词： Anatomic site colorectal cancer database hospitalization

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直流输电换相失败对交流侧继电保护的影响

高电压技术 2006年第9期32卷 42-45页

作者：邵震王炳炎中国南方电网超高压输电公司广州510405 广东电网公司广东省电力调度中心广州510600

为验证换相失败期间交流侧突变量方向保护元件误动的原因,以广东电网发生的一起直流换流站换相失败引起高压交流电网继电保护不正确动作事件为例,用PSCAD/EMTDC软件做辅助分析,改进和仿真了CIGRE直流输电标准测试模型。仿真结果表明:因... 详细信息

为验证换相失败期间交流侧突变量方向保护元件误动的原因,以广东电网发生的一起直流换流站换相失败引起高压交流电网继电保护不正确动作事件为例,用PSCAD/EMTDC软件做辅助分析,改进和仿真了CIGRE直流输电标准测试模型。仿真结果表明:因换相失败引起的非特征谐波与非周期分量较严重,对交流侧继电保护运行有一定影响,针对这些保护元件逻辑与算法分别提出了相应的改进措施。

关键词：直流输电系统换相失败继电保护非特征谐波非周期分量

A novel cleanliness control method for disk amplifiers

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High Power Laser Science and Engineering 2020年第4期8卷 129-133页

作者： Yangshuai Li bingyan wang Panzheng Zhang Yanli Zhang Yanfeng Zhang Shenlei Zhou Weixin Ma Jianqiang Zhu Key Laboratory on High Power Laser and Physics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China Shanghai Institute of Laser Plasma China Academy of Engineering PhysicsShanghai 201800China

As the key part for energy amplification of high-power laser systems,disk amplifiers must work in an extremely clean *** from the traditional cleanliness control scheme of active intake and passive exhaust(AIPE),a new method of active exhaust and passive intake(AEPI)is proposed in this *** with computational fluid dynamics(CFD)technology,through the optimization design of the sizes,shapes,and locations of different outlets and inlets,the turbulence that is unfavorable to cleanliness control is effectively avoided in the disk amplifier cavity during the process of ***,the cleanliness control of the cavity of the disk amplifier can be realized just by once ***,the micro negative pressure environment in the amplifier cavity produced during the exhaust process reduces the requirement for *** method is simple,time saving,gas saving,efficient,and *** is also suitable for the cleanliness control of similar amplifiers.

关键词： active exhaust and passive intake computational fluid dynamics cleanliness control disk amplifier

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手机阅读平台用户体验影响因子分析

出版科学 2016年第5期24卷 91-96页

作者：王丙炎张卫湘潭大学公共管理学院湘潭411105

指出在以人为中心的设计中,用户体验尤为重要,是平台设计的重要内容。采用用户访谈、问卷调查方法对影响手机阅读平台用户体验的因子进行定量分析,再利用社会科学统计软件SPSS对收集的数据进行探索性因子分析,最终抽取7个影响因子,结合... 详细信息

指出在以人为中心的设计中,用户体验尤为重要,是平台设计的重要内容。采用用户访谈、问卷调查方法对影响手机阅读平台用户体验的因子进行定量分析,再利用社会科学统计软件SPSS对收集的数据进行探索性因子分析,最终抽取7个影响因子,结合手机阅读特点进行定性分析后确定因子内容,以期对手机阅读平台的设计与评价具有实际指导意义。

关键词：手机阅读平台移动阅读数字阅读用户体验影响因子