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Chinese Medical Journal 2006年第17期119卷 1473-1476页

作者： LI Yan-fang CAO Jian FAN Li BU Cong-ya LI Xi WANG Long-hua CHENG xiu-qin NIE Xiao-min WU Xiao-ying The Twelfth Ward Anzhen Hospital Capital University of MedicalSciences Beijing 100029 China The Department of Geriatric Cardiology People＇s Liberation ArmyGeneral Hospital Beijng 100853 China

Nowadays, despite the high prevalence of hypertension, the awareness rate and control rate of this disease are still very low. In addition, the prevalence of hypertension in old population is very high, and most of cases are isolated systolic hypertension （ISH）. We investigated people ranging in age from 80 to 99 years in 28 cadre retirement centers in Beijing to study the prevalence and incidence of target organ injury and analyze the relative factors of ISH.

关键词： blood pressure hypertension population surveillance

Hexagon-Shaped Screw Recognition and Positioning System Based on Binocular Vision

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Hexagon-Shaped Screw Recognition and Positioning System Base...

Chiral amino acid recognition in water:A BINOL-based fluorescent probe

第37届中国控制会议

作者： fang Wang xin Chen Chang Tan Jinbin Li Yaodong Zhang School of Automation China University of Geoscience Hubei key Laboratory of Advanced Control and Intelligent Automation for Complex Systems State Grid Hubei Electric Power Research Institute

Traditional artificial live work asks for a high standard with operator’s mental state and technical level in high-voltage and strong-magnetic environment,which not only reduces the efficiency of modern production and living but also causes potential threats to the safety of ***,developing robot live work has great significance for both academic research and industrial applications.A key problem of the live work for an industrial robot is recognition and positioning of the hexagonshaped screw in substation with high *** solve this problem,this article designs a hexagon-shaped screw recognition and positioning system based on binocular vision in transformer substation.A method for stereo matching including 3 steps is proposed:edge noise of the target is reduced by median filter at the beginning;then the target can be obtained through the image segmentation method of adjusting threshold;further moments are used to express the centers of hexagons in 2 images which work as stereo matching *** depth information can be obtained due to visual geometric relationships based on stereo model and camera calibration parameters based on camera *** experiment results show that the binocular system designed in this article can accurately identify the target with good stability,and the measurement error is controlled in 4%.

关键词： Binocular stereo vision Image segmentation Stereo matching Depth information

来源： cnki会议评论

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Chinese Chemical Letters 2023年第12期34卷 136-140页

作者： Meng-xin Sun Chuan-Zhi Ni fang-Qi Zhang Yuan-Yuan Zhu Jie Zeng Shuang-Xi Gu School of Chemistry and Environmental Engineering Wuhan Institute of TechnologyWuhan 430205China Hubei Key Laboratory of Novel Reactor and Green Chemical Technology Wuhan Institute of TechnologyWuhan 430205China Pharmaceutical Research Institute Wuhan Institute of TechnologyWuhan 430205China Key Laboratory for Green Chemical Process of Ministry of Education School of Chemical Engineering&PharmacyWuhan Institute of TechnologyWuhan 430205China

A novel BINOL-based fluorescence probe(S)-6 featuring a sodium sulfonate fragment at the 2'-position was designed and synthesized via simple synthetic procedures under mild reaction *** watersoluble probe(S)-6 displays excellent enantioselective recognition toward 15 common amino acids,and it can be used for enantiomeric excess determination of amino *** fluorescence intensity of(S)-6 treated with amino acids reaches the maximum after standing for only 30 min at room temperature and remains stable in the following 5.5 h,which has great potential in the application of chiral fluorescence analysis due to its timeliness and outstanding fluorescent stability.

关键词： Chiral recognition Fluorescent probe Amino acid Water-soluble Enantiomeric excess determination

A　NOVEL　ARYL　SHIFT　IN　THE　OXIDATION　OF　ENOL　SILYL　ETHERS　BY　IODOSOBENZENE－BORON　TRIFLUORIDE

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Chinese Chemical Letters 1994年第4期5卷 285-286页

作者： Liang Zhu LI Yuan Jin RUI xiu Min ZHAO Yia Jun ZHAO Jin fang YUAN(Department of Chemistry Pcking University, Beijing 100871)(This research was supported by the National Science Foundation of China.)

The arylshiftwas found when the enol silyl ethers derived from 2-aryl-44chromanones and 3-aryl-l -tetralone were trealed with PhIO-BF3 ,yielding 3-aryl-chromanones and 2-aryl-3-fluoro-1-tetralones respectively, The r...

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Intestinal toxicity of deoxynivalenol is limited by supplementation with Lactobacillus plantarum JM113 and consequentially altered gut microbiota in broiler chickens

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Journal of Animal Science and Biotechnology 2019年第1期10卷 218-230页

作者： Shengru Wu Yanli Liu Yongle Duan fangyuan Wang fangshen Guo fang Yan Xiaojun Yang xin Yang College of Animal Science and Technology Northwest A&F University College of animal science and Technology Hebei Agricultural University

Background: Limited research has focused on the effect of Lactobacillus on the intestinal toxicity of deoxynivalenol(DON).The present study was conducted to investigate the role of Lactobacillus plantarum(***) JM113 in protecting against the intestinal toxicity caused by ***: A total of 144 one-day-old healthy Arbor Acres broilers were randomly distributed into 3 treatments,including the CON(basal diet),the DON(extra 10 mg/kg deoxynivalenol),and the DL(extra 1 × 109 CFU/kg *** JM113 based on DON group) *** growth performance,organ indexes,intestinal morphology,pancreatic digestive enzymes,intestinal secreted immunoglobulin A(sIgA),jejunal transcriptome,and intestinal microbiota were ***: Compared with the CON and DL groups,the DON supplementation altered intestinal morphology,especially in duodenum and jejunum,where villi were shorter and crypts were deeper(P < 0.05).Meanwhile,the significantly decreased mRNA expression of jejunal claudin-1 and occludin(P < 0.05),ileal rBAT and jejunal GLUT1 of 21-day-old broilers(P < 0.05),as well as duodenal PepT1 and ileal rBAT of 42-day-old broilers were identified in the DON ***,supplementation with *** JM113 could increase duodenal expression of IL-10 and IL-12 of 21-dayold broilers,ileal s IgA of 42-day-old broilers,and the bursa of Fabricius index of 21-day-old *** jejunal transcriptome proved that the genes related to the intestinal absorption and metabolism were significantly reduced in the DON group but a significant increase when supplemented with extra *** ***,the bacteria related to nutrient utilization,including the Proteobacteria,Escherichia,Cc-115(P < 0.05),Lactobacillus and Prevotella(P < 0.1) were all decreased in the DON *** contrast,supplementation with *** JM113 increased the relative abundance of beneficial bacterium,including the Bacteroidetes,Roseburia,Anaerofustis,Anaerostipe,and Ruminococcus

关键词： Broiler chickens Deoxynivalenol Gut microbiota Lactobacillus plantarum JM113 mRNA sequencing 16S rRNA gene sequencing

DETERMINATION OF TRACE AMOUNTS OF SELENIUM IN ENVIRONMENTAL SAMPLES BY HYDRIDE GENERATION——ATOMIC ABSORPTION SPECTROMETRY COMBINED WITH FLOW INJECTION ANALYSIS TECHNIQUE

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Chinese Science Bulletin 1986年第11期31卷 791-792页

作者：王秀方肇伦 Institute of Forestry and Soil Science Academia Sinica Shenyang Institute of Forestry and Soil Science

Selenium is an element having an important effect on animal, plant and human body in environment. Large numbers of samples containing selenium have often to be analysed in environmental laboratories. Therefore, it is ... 详细信息

关键词： hydride urgent analysed selenium laboratories freedom body manual dispersed valve

Association between Fruit and Vegetable Intake and Arterial Stiffness: The China-PAR Project

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Biomedical and Environmental Sciences 2023年第12期36卷 1113-1122页

作者： LIU Shuai LIU fang Chao LI Jian xin HUANG Ke Yong YANG Xue Li CHEN Ji Chun CAO Jie CHEN Shu Feng HUANG Jian Feng SHEN Chong LU Xiang Feng GU Dong Feng Department of Epidemiology Center for Global HealthSchool of Public HealthNanjing Medical UniversityNanjing 211166JiangsuChina Key Laboratory of Cardiovascular Epidemiology&Department of Epidemiology Fuwai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100037China Tianjin Key Laboratory of Environment Nutrition and Public HealthDepartment of Occupational and Environmental HealthSchool of Public HealthTianjin Medical UniversityTianjin 300070China Research Units of Cohort Study on Cardiovascular Diseases and Cancers Chinese Academy of Medical SciencesBeijing 100730China School of Medicine Southern University of Science and TechnologyShenzhen 518055GuangdongChina

Objective This study aimed to investigate the association between fruit and vegetable intake and arterial *** We conducted a cohort-based study comprising 6,628 participants with arterial stiffness information in the Prediction for Atherosclerotic Cardiovascular Disease Risk in China(China-PAR)project. A semi-quantitative food-frequency questionnaire was used to assess baseline(2007–2008) and recent(2018–2021) fruit and vegetable intake. We assessed changes in fruit and vegetable intake from2007–2008 to 2018–2021 in 6,481 participants. Arterial stiffness was measured using the arterial velocity–pulse index(AVI) and arterial pressure-volume index(API). Elevated AVI and API values were defined according to diverse age reference *** Multivariable-adjusted linear regression models revealed that every 100 g/d increment in fruit and vegetable intake was associated with a 0.11 decrease in AVI(B =-0.11;95% confidence interval [CI]:-0.20,-0.02) on average, rather than API(B = 0.02;95% CI:-0.09, 0.13). The risk of elevated AVI(odds ratio [OR] = 0.82;95% CI: 0.70, 0.97) is 18% lower in individuals with high intake(≥ 500 g/d) than in those with low intake(< 500 g/d). Furthermore, maintaining a high intake in the past median of 11.5years of follow-up was associated with an even lower risk of elevated AVI compared with a low intake at both baseline and follow-up(OR = 0.64;95% CI: 0.49, 0.83).Conclusion Fruit and vegetable intake was negatively associated with arterial stiffness, emphasizing recommendations for adherence to fruit and vegetable intake for the prevention of arterial stiffness.

关键词： Fruit Vegetable Arterial stiffness Cardiovascular disease

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安塞腰鼓训练对大学生身体机能影响的研究

中国体育科技 2007年第5期43卷 102-107页

作者：胡效芳颜艳熊正英朱秀芳陕西师范大学体育学院陕西西安710062 漳州师范学院体育系福建漳州363000

目的:通过安塞腰鼓训练对大学生身体机能影响的研究,探讨安塞腰鼓运动的健身价值,为其进入高校体育课程体系及大众健身领域提供科学依据。方法:非体育专业学生60名(男、女生各30名),随机分为实验组和对照组,每组30名(男、女生各15名),... 详细信息

目的:通过安塞腰鼓训练对大学生身体机能影响的研究,探讨安塞腰鼓运动的健身价值,为其进入高校体育课程体系及大众健身领域提供科学依据。方法:非体育专业学生60名(男、女生各30名),随机分为实验组和对照组,每组30名(男、女生各15名),组织其进行为期16周的安塞腰鼓训练,每周3次,每次90 min。前10min为准备活动时间,中间75 min为腰鼓训练时间,最后5 min为放松整理时间。训练中的运动强度用心率来控制,保持在130～160次/ min之间。在实验前、后进行生理生化指标测试,并对结果进行比较分析。结论:长期系统的安塞腰鼓训练,有利于提高大学生的身体机能,改善其运动系统、心血管系统、氧转运系统和呼吸系统功能,对于促进大学生身体健康发展具有重要作用。

关键词：安塞腰鼓大学生身体机能影响

220kV变电站主变110kV侧接地方式分析

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高电压技术 2007年第12期33卷 157-161页

作者：黄方能黄成军江秀臣曾奕王恒王新彤上海交通大学上海200240 唐山供电公司唐山063000

220 kV变电站主变中性点接地方式直接影响到主变的安全稳定运行,当220 kV变电站的110 kV侧发生单相接地故障时,有可能造成主变遭受冲击而损坏。因此列举出了220 kV变电站中可能出现的主变中性点接地方式,分析了110 kV侧发生单相接地故障... 详细信息

220 kV变电站主变中性点接地方式直接影响到主变的安全稳定运行,当220 kV变电站的110 kV侧发生单相接地故障时,有可能造成主变遭受冲击而损坏。因此列举出了220 kV变电站中可能出现的主变中性点接地方式,分析了110 kV侧发生单相接地故障时,主变中性点接地方式对流入主变短路电流的影响,并计算了相应的短路电流,提出单相接地故障对主变的冲击最严重。可以通过改变主变中性点的接地方式来保护主变,最后提出了具体的保护措施,并给出唐山供电公司的一个应用实例。

关键词： 220kV变电站主变中性点接地方式短路电流单相接地