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CAS Botanist's Adventures in African Jungles

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Bulletin of the Chinese Academy of Sciences 2018年第3期32卷 142-143页

作者： cao kai Xinhua News Agency

When Professor WANG Qingfeng,a Chinese botanist,visited Kenya for the first time 17 years ago,he was amazed to find the secret of some Kenyans'snow-white teeth:they use branches of "toothbrush trees"to brush their tee... 详细信息

关键词： toothpaste toothbrush

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双渠道竞争环境下的闭环供应链定价模型

系统工程理论与实践 2014年第6期34卷 1416-1424页

作者：林杰曹凯同济大学经济与管理学院上海200092

在双销售渠道和双回收渠道并存下的闭环供应链中,分别以制造商和零售商为博弈领导者建立闭环供应链定价模型;研究和对比了两种不同市场力量结构对均衡产品零售价、产品批发价、制造商直销渠道产品零售价、制造商直接回收渠道回收价、第... 详细信息

在双销售渠道和双回收渠道并存下的闭环供应链中,分别以制造商和零售商为博弈领导者建立闭环供应链定价模型;研究和对比了两种不同市场力量结构对均衡产品零售价、产品批发价、制造商直销渠道产品零售价、制造商直接回收渠道回收价、第三方回收渠道回收价、零售商利润和第三方利润的影响;分析了再制造成本、双销售渠道竞争系数和双回收渠道竞争系数对渠道成员定价决策和利润的影响.研究结果表明:当制造商主导市场时,产品零售价、直销渠道产品零售价和产品批发价往往低于零售商主导市场情况下的各种价格;而废旧产品第三方回收渠道回收价、制造商直接回收渠道回收价和制造商给第三方回购价不仅取决于市场力量结构还取决于消费者对第三方回收渠道回收价的敏感程度.

关键词：闭环供应链定价决策博弈论

Effects of a combined infection with Paranosema locustae and Beauveria bassiana on Locusta migratoria and its gut microflora

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Insect Science 2021年第2期28卷 347-354页

作者： Shu-Qian Tan Yue Yin kai-Li cao Xin-Xin Zhao Xiao-Yu Wang Yu-Xin Zhang Wang-Peng Shi Department of Entomology and MO A Key Lab of Pest Monitoring and Green Management College of Plant ProtectionChina Agricultural UniversityBeijingChina Institution of Plant Protection Academy of Ningxia Agricultural and Forestry ScienceYinchuanChina

Even though Paranosema locustae is widely used in China as a biological agent for controlling grasshoppers,the mortality rate is initially quite *** study sought to determine whether the simultaneous use of *** and Beauveria bassiana would be a more effective control ***,changes in the intestinal microbial communities of migratory locusts infected with the two pathogens were analyzed to investigate the roles of gut microbes in pathogen-host *** mortality rate of locusts inoculated with *** and *** simultaneously was not significantly higher than expected but the mortality rates of locusts inoculated with *** 3,6,and 9 days after inoculation with *** were significantly higher than if their effects were additive,indicating synergism.A MiSeq analysis found that Weissella was the most common bacterium,representing 41.48%and 51.62%of the total bacteria in the mid-and hindguts,respectively,and the bacterial declines were greatest during dual infections with *** and *** appropriately timed combined application of *** and *** was more effective against locusts than either treatment ***,the combined inoculation of the two pathogens changed the gut microflora of locusts,indicating the potential relevancy of their synergistic effects on locust control.

关键词： entomopathogenic fungi intestinal symbiotic bacteria microsporidia migratory locust

Effect of Bicuspid Aortic Valve Cusp Fusion on Aorta Wall Shear Stress: Preliminary Computational Assessment and Implication for Aortic Dilation

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World Journal of Cardiovascular Diseases 2015年第6期5卷 129-140页

作者： kai cao Philippe Sucosky Department of Aerospace and Mechanical Engineering University of Notre Dame Notre Dame USA

The bicuspid aortic valve (BAV) is a major congenital valvular abnormality and is associated with a high prevalence of aortic dilation, whose expression depends on the type of leaflet fusion. Although BAV hemodynamics is considered a potential pathogenic contributor, the impact of BAV fusion on ascending aorta (AA) wall shear stress (WSS) remains largely unknown. A fluid-structure interaction approach was implemented to predict the hemodynamics and WSS characteristics in realistic AA models subjected to the flow of a normal tricuspid aortic valve (TAV) and three BAV morphotypes (left-right coronary cusp fusion (LR), right-non coronary cusp fusion (RN) and non-left coronary cusp fusion (NL)). TAV flow conditions subjected the proximal and middle AA to a streamlined flow typical of flows in bends, while BAV flow conditions generated increased flow helicity. The LR-BAV orifice jet generated flow abnormalities primarily in the proximal AA, which were marked by a uniform WSS overload along the wall circumference and contrasted WSS directionalities on the wall convexity and concavity. Flow abnormalities generated by the RN-BAV and NL-BAV inlet flow conditions were more diffuse and consisted of WSS overloads in the convexity of the proximal and middle AA and contrasted WSS directionalities in the anterior and posterior wall regions. This study demonstrates the impact of the BAV morphotype on AA hemodynamics and provides quantitative evidence for the existence of WSS abnormalities in aortic wall regions prone to dilation.

关键词： Bicuspid Aortic Valve (BAV) Aorta Aortopathy Hemodynamics Fluid-Structure Interaction (FSI)

Sudden sensorineural hearing loss(SSHL) following a local anesthetic dental procedure

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Journal of Otology 2019年第2期14卷 67-72页

作者： Yi Wang Jun-kai cao Hui-Xin Yang Jin Feng Qi-you Zhou Fei Ji Department of Stomotology General Hospital of the PLABeijing100853China Department of Otolaryngology General Hospital of the PLABeijing100853China Key Laboratory of Hearing Impairment Science(Chinese PLA Medical School) Ministry of EducationBeijing100853China Beijing Key Laboratory of Hearing Impairment Prevention and Treatment Laboratory of Military Acoustic Trauma ProtectionBeijing100853China

Acute sensorineural hearing loss is an uncommon phenomenon in *** describe the case of a 79-year-old male who presented with acute sensorineural hearing loss occurring 2 days after a tooth extraction procedure under local *** mechanisms are *** was treated with vasodilators(Ginaton and Alprostadil Injection)and Mecobalamin injection with *** dose oral steroids(1 mg/kg)and low molecular weight dextran were used.

关键词： Sudden sensorineural hearing loss Dental procedure Acute hearing loss

The Impact of the Numbers of Monitoring Stations on the National and Regional Air Quality Assessment in China During 2013-18

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Advances in Atmospheric Sciences 2022年第10期39卷 1709-1720页

作者： Hongyan LUO Xiao TANG Huangjian WU Lei KONG Qian WU kai cao Yating SONG Xuechun LUO Yao WANG Jiang ZHU Zifa WANG LAPC&ICCES Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China University of Chinese Academy of Sciences Beijing 100049China Center for Excellence in Regional Atmospheric Environment Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China

China national air quality monitoring network has become the core data source for air quality assessment and management in ***,during network construction,the significant change in numbers of monitoring sites with time is easily ignored,which brings uncertainty to air quality *** study aims to analyze the impact of change in numbers of stations on national and regional air quality assessments in China during *** results indicate that the change in numbers of stations has different impacts on fine particulate matter(PM_(2.5))and ozone concentration *** increasing number of sites makes the estimated national and regional PM_(2.5) concentration slightly lower by 0.6−2.2μg m^(−3) and 1.4−6.0μg m^(−3) respectively from 2013 to *** main reason is that over time,the monitoring network expands from the urban centers to the suburban areas with low population densities and pollutant *** ozone,the increasing number of stations affects the long-term trends of the estimated concentration,especially the national trends,which changed from a slight upward trend to a downward trend in 2014−***,the impact of the increasing number of sites on ozone assessment exhibits a seasonal difference at the 0.05 significance level in that the added sites make the estimated concentration higher in winter and lower in *** results suggest that the change in numbers of monitoring sites is an important uncertainty factor in national and regional air quality assessments,that needs to be considered in long-term concentration assessment,trend analysis,and trend driving force analysis.

关键词： monitoring network newly added sites PM_(2.5) ozone

Bibliometric analysis of glaucoma-related literature based on SCIE database:a 10-year literature analysis from 2009 to 2018

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International Journal of Ophthalmology(English edition) 2020年第12期13卷 1998-2006页

作者： Yun-Xiao Sun Ying-Na Liu Ying Han Fan-Qi Kong Yue Zhang Siloka Arthur Labisi kai cao Beijing Ophthalmology and Visual Sciences Key Laboratory Beijing Tongren Eye CenterBeijing Tongren HospitalCapital Medical UniversityBeijingChina Beijing Institute of Ophthalmology Beijing Tongren HospitalCapital Medical UniversityBeijingChina Department of Ophthalmology University of California San FranciscoSan FranciscoCA 94143USA Allergan plc ShanghaiChina

AIM:To explore the global trends and focus of glaucoma research from 2009 to ***:Searching for glaucoma-related articles published in Science Citation Index Expanded(SCIE)database during 2009-2018,and describing the distribution of the published year,countries,authors,institutions,funding agencies,journals,impact factor,citation and hot research topic of articles by using bibliometric ***,we compared some of these indicators over two five-year periods,from 2009 to 2013 and from 2014 to ***:A total of 19609 glaucoma-related articles were retrieved and the global SCIE articles have increased yearly from 2009 to *** USA was the pioneer which has made great *** kept the second place and the number of publications has increased rapidly between 2014 and *** author with the highest number of publications was Weinreb,***-occurrence maps were built amongst the top 50 authors or the top 50 institutions with the most articles,which visualize the closer collaboration of international authors or *** journal Investigative Ophthalmology&Visual Science has published the most *** literature with an impact factor of 3-5 points accounted for the largest proportion(28.96%).The most frequently cited paper had 798 *** top three hot areas on glaucoma were intraocular pressure,optical coherence tomography(OCT)and retinal ganglion *** trabecular meshwork,primary angle-closure glaucoma and Spectral-domain OCT have become new hot research topics in recent five years during ***:Bibliometric analysis is an effective method to describe the global literature on *** a 10-year literature survey from 2009 to 2018,global glaucoma research has developed in a balanced manner,and the cooperation between various institutions and teams has become ***-related pathogenesis research,imaging examinations of OCT and surgery therapy have attracted most attention.

关键词： bibliometric analysis Science Citation Index Expanded glaucoma ocular hypertension

Wheel-legged In-pipe Robot with a Bioinspired Hook and Dry Adhesive Attachment Device

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Journal of Bionic Engineering 2024年第3期21卷 1208-1222页

作者： Yahong Liu Yi Sun kai cao Shutao Wu Xiaofeng Xu Qingfei Han Shikun Wen Huan Shen Guangming Chen Jiajun Xu Zhiwei Yu Aihong Ji Lab of Locomotion Bioinspiration and Intelligent Robots College of Mechanical and Electrical EngineeringNanjing University of Aeronautics and AstronauticsNanjing 210016China State Key Laboratory of Mechanics and Control for Aerospace Structures Nanjing University of Aeronautics and AstronauticsNanjing 210016China

In-pipe robots have been widely used in pipes-with smooth inner ***,current in-pipe robots face challenges in terms of moving past obstacles and climbing in marine-vessel pipeline systems,which are affected by marine biofouling and electrochemical *** paper takes inspiration from the dual-hook structure of Trypoxylus dichotomus’s feet and gecko‑like dry adhesives,proposing an in-pipe robot that is capable of climbing on rough and smooth pipe *** combination of the bioinspired hook and dry adhesives allows the robot to stably attach to rough or smooth pipe inwalls,while the wheel-leg hybrid mechanism provides better conditions for obstacle *** paper explores the attachment and obstacle-surmounting mechanisms of the ***,motion strategies for the robot are devised based on different pipe structural *** experiments showed that this robot can adapt to both smooth and rough pipe environments simultaneously,and its motion performance is superior to conventional driving *** robot’s active turning actuators also enable it to navigate through horizontally or vertically oriented 90°bends.

关键词： In-pipe robot Bioinspired attachment device Wheel-legged robot Mechanical design

Additional far-red light promotes adventitious rooting of doubleroot-cutting grafted watermelon seedlings

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Horticultural Plant Journal 2024年第6期10卷 1424-1436页

作者： Xue Wu Xiaoyan Zhang Yaya Wang Cuinan Wu Yudong Sun Yi Zhang Yongran Ji Encai Bao Liru Xia Zhonghua Bian kai cao The Agriculture Ministry Key Laboratory of Agricultural Engineering in the Middle and Lower Reaches of Yangtze River Institute of Agricultural Facilities and EquipmentJiangsu Academy of Agricultural SciencesNanjingJiangsu 210014China Institute of Industrial Crops Jiangsu Academy of Agricultural SciencesNanjingJiangsu 210014China College of Horticulture Shanxi Agricultural UniversityTaiguShanxi 030801China Huaiyin Institute of Agricultural Science in Xuhuai District HuaianJiangsu 223001China Horticulture and Product Physiology Department of Plant SciencesWageningen University&ResearchWageningen 6700AAthe Netherlands Institute of Urban Agriculture Chinese Academy of Agricultural SciencesChengduSichuan 610299China

Root regeneration is an important factor influencing the healing rate of graft union and the survival of double-root-cutting *** date,little information is available on how to enhance root regeneration of rootstock in grafted watermelon(Citrullus lanatus)*** this study,the effects of different light treatments on root regeneration were *** revealed that addition of far-red light(Fr)could significantly expedite root formation in the ***,the results of transcriptome analysis revealed that plant hormone pathway and auxinrelated genes were greatly induced by Fr,especially for auxin-response proteins(including CmIAA11,CmIAA17,and CmAUX28),Small auxinup RNA genes(including CmSAUR20 and CmSAUR50)and the auxin efflux transporter(CmPIN3).In addition,the expression of Phytochrome Interacting Factor(PIFs),such as CmPIF1,CmPIF3 and CmPIF7,was remarkably increased by *** genes may act together to activate auxinrelated pathways under Fr *** on the results of HPLC-MS/MS analysis,the concentrations of different auxin-types in adventitious root were significantly influenced by ***,the better growth of rootstock root displayed superior vasculature transport activity of the graft union with Fr treatment,which was determined by the acid magenta dyeing ***,all the results suggested that Fr could induce AR formation in rootstocks,which may be associated with the auxin accumulation by regulating the transcriptional level of auxinrelated and PIF *** findings of this study demonstrated a practicable way to shorten the healing period of graftings and improve the quality of grafted watermelon seedlings,which will provide a theoretical basis for the speeding development of industrialized seedlings production.

关键词： Watermelon Double-root-cutting grafting Rootstock Adventitious root regeneration Auxin