维普中文期刊产品整合服务
17篇 您的检索式:作者名="Du Yongling"
    题名 作者 年代 出处 被引量
1Phenotypic and genetic variation between two populations of the Chinese yellow pond turtle, Mauremys mutica (Cantor, 1842)显示文摘Mauremys mutica(Cantor,1842)is an endangered species in China.Main phenotypic variations inbody color,body weight,body shape,clutch size,egg size,and hatchling size were revealed betweenthe southern and northern populations.Both populations have the phenomenon of'larger male'sexualsize dimorphism(SSD),especially in the southern population.Furthermore,genetic variations betweenthe two populations were analyzed by RAPD band patterns of 30 random individuals in each population.The average genetic distance was 0.299±0.108 among the samples of two populations.The average ge-netic distance between southern and northern populations was 0.305±0.046.Cluster analysis indicatedthat all the individuals from the southern and northern populations were clustered among themselves toform two distinct clades.A total of 20 population-specific RAPD fragments were scored from 16 primers,and could be used as RAPD markers for distinguishing the southern and the northern population.Basedon the nucleotide sequences of two RAPD markers,two pairs of SCAR primers(SC1-S and SC2-S)weredesigned,which could be used as SCAR markers for the southern population.According to the significantphenotypic and genetic variations,we suggested that the northern population and southern populationmight be considered as two separate taxa,the'northern taxon'and the'southern taxon',and the con-servation should be respectively conducted on the two taxa.朱新平 Zhou Li Chen Yongle Du Hejun Gui Jianfang 2008High Technology Letters2008,14,1:10
2Research progress of residual stress determination in magnesium alloys显示文摘With the research development of the magnesium alloys,the deformation or stress corrosion induced by residual stress(RS)attracted extensive interests in industry and research efforts extensive.However,there are relatively few studies on the RS of magnesium alloys in the world.The generation cause of RS in magnesium alloys was analyzed at first.Several methods of determinate the RS,including destructive methods(drilling hole,crack compliance,layer exfoliation etc.)and non-destructive methods(X-ray Diffraction,Neutron Diffraction,Short Wavelength X-ray Diffraction)were summarized.The factors that influence the measuring accuracy of XRD method were emphasized.The research trends of RS in magnesium alloys were put forward.Xiaomin Yuan Jin Zhang Yong Lian Chang Du Weisheng Xu Yongle Zhao Jiahao Mo 2018Journal of Magnesium and Alloys2018,6,3:2
3A novel preparation method of Sn-modified Pt nanoparticles and application for methanol oxidation显示文摘Yongling Du Biquan Su Nuo Zhang Chunming Wang 2008Applied Surface Science2008,,5:1
4Facile method to prepare Pdf graphene-polyaniline nanocomposite and used as new electrode material for electrochemical sen?sing显示文摘Zheng Zhixiang Du Yongling Feng Qingliang et a1 2012J Molecular Cataly A: Chem2012,,:1
5Concise route to prepared graphene-CNTs nanocomposite supported Pt nanoparticles and used as new electrode material for electrochemical sensing 显示文摘ZHENG Zhixiang DU Yongling WANG Zaihua 2012Journal of Molecular Catalysis A: Chemical2012,,363364:1
6Pt/graphene-CNTs nanocomposite based electrochemical sensors for the determination of endocrine disruptionbisphenol A in thermal printing pappers显示文摘ZHENG Zhixiang DU Yongling WANG Zaihua 2013Analyst2013,138,:1
7Two-phase Flow of Liquid-gas in Diesel Fuel Injection System and Their Effect on Engine Performances显示文摘In this paper, by using high-speed camera, CCD camera, signal and graph acquisition system, and other experimental instruments, investigation on liquid-gas two-phase flow in diesel fuel injection system and their effect on engine performances were made. Emerging and bursting of cavitation in the cavity above pump delivery valve, in injection pipe, and in fuel trough of injector of the fuel injection system were observed and mechanism of cavitation were discussed. Effects of liquid-gas two-phase flow on propagation velocity of pressure wave of the system and on irregular injection were analyzed. Two types of cavitation, long Living time cavitation and short living time cavitation, in the cavity above pump delivery valve of diesel fuel injection system were observed.Yongling He ,Zhihe Zhao ,Jianxin Liu ,Huiyong Du Mm Li ,Yongping Zong Luoyang Institute of Technology, Luoyang 471039, China E-mail: frick@mail.lyit.edu.cn 2001Journal of Thermal Science2001,10,3:1
8Preparation of flowerlike Cu2O nanoparticles by pulse electrodeposition and their electrocatalytic application显示文摘Yong-e Gu Xu Su Yongling Du 0,,20:1
9Electroless deposition of Au nanoparticles on reduced graphene oxide/polyimide film for electrochemical detection of hydroquinone and catechol显示文摘Xuan SHEN Xiaohong XIA Yongling DU Chunming WANG 2017Frontiers of Materials Science2017,11,3:1
10Photo-cat- alytic degradation of trifluralin by SnOz-doped Cu20 crystals 显示文摘Du Yongling Zhang Nuo Wang Chunming 2010Catal Commun2010,11,7:1
11Facile method to prepare Pd/graphene-polyaniline nanocomposite and used as new electrode material for electrochemical sensing 显示文摘ZHENG Zhixiang DU Yongling FENG Qingliang 2012Journal of Molecular Catalysis A:Chemical2012,35,:1
12Study of photoelectrocatalytic degradation behavior of p-nitrophenol with nano-TiO2 modified film at a rotating ring-disk electrode显示文摘Su Biquan Ma Yongjun Du Yongling 2009Electrochemistry Communications2009,11,6:1
13Preparation of flower-like Cu 2 O nanoparticles by pulse electrodeposition and their electrocatalytic application显示文摘Yong-e Gu Xu Su Yongling Du Chunming Wang 2010Applied Surface Science2010,,20:1
14Photo-catalytic degradation of trifluralin by SnO 2 -doped Cu 2 O crystals显示文摘Yongling Du Nuo Zhang Chunming Wang 2010Catalysis Communications2010,,7:1
15Concomitant chemoradiotherapy using pemetrexed and carboplatin for unresectable stage III non-small cell lung cancer (NSCLC): Preliminary results of a phase II study显示文摘Yaping Xu Shenglin Ma Yongling Ji Xiaojiang Sun Hao Jiang Jianxiang Chen Xianghui Du Yuanda Zheng Guoqin Qiu 2010Lung Cancer2010,,3:1
16BP neural network model for material distribution prediction based on variable amplitude anti-blocking screening DEM simulations显示文摘The material feeding changing of combine harvester is easy to cause accumulation and blockage of the vibrating screen,which seriously affects the harvest operation.In order to alleviate such accumulation and blockages on the vibrating screen surface,the guide chute rotation angle of the improved variable amplitude screening mechanism was selected as the target variable,and EDEM-RecurDyn was employed to simulate the anti-blocking process of the variable amplitude under a changing feeding quantity(0.5 kg/s abnormal,0.2 kg/s normal)of materials(rice grain and stem mixture).A BP(an error back propagation algorithm)neural network was designed and the prediction model of the material distribution was subsequently constructed on the variable screening surface under different chute angles during abnormal feeding.The results revealed a continuous decrease in the quality and time of the material blockage at the front end of the screen surface with the increasing guide chute angle.At the guide chute angle of 20°-45°and adjustment time of 3-6 s,the blocked and accumulated materials at the front-end screen surface was be moved back to Grid 6 for screening.However,overtime,the screen surface materials continued to move back under the chute angle of 40°-45°,which had a great impact on the screening performance.At the guide chute angle of 30°-35°and adjustment time of 4 s,the materials on the screen surface were evenly distributed in Grid 1-6.This was able to alleviate the accumulation and blockage of the screen surface materials.The R of the material distribution prediction model(BP neural network)on the screen surface was determined as 0.97,indicating the high reliability and accuracy of the material distribution model on the screen surface based on the BP neural network.This work provides an important reference for the variable amplitude intelligent control of screen surface material anti-blocking.Zheng Ma Yongle Zhu Zhiping Wu Souleymane Nfamoussa Traore Du Chen Licheng Xing 2023International Journal of Agricultural and Biological Engineering2023,16,4:0
17Criteria and regulatory considerations for the conditional approval of innovative antitumor drugs in China:from the perspective of clinical reviewers显示文摘1 BACKGROUND Before the State Council of the People’s Republic of China issued the“Opinions on the Reform of the Examination and Approval System of Pharmaceutical and Medical Devices”[1],several problems existed in China’s drug evaluation and approval system.The long approval time and low efficiency of new drug marketing seriously affected the enthusiasm for drug innovation.To this end,the current“Drug Registration Regulation”(DRR)[2]was initiated by the National Medical Products Administration of China and officially implemented on July 1,2020.To encourage clinical value-oriented drug innovation,four expedited drug programs were first proposed,including breakthrough therapy drugs,conditional approval,priority review,and special approval procedures.For drugs listed in the expedited programs,the drug regulatory authorities and professional technical institutions should provide policy and technical support,prioritize the allocation of communication and review resources,and thereafter shorten the review time as much as possible.Limin Zou Yueli Qi Yongling Jiang Ling Tang Yu Du Boyuan Zhao Yanzhe Sun Meiyi Xiang Jun Ma Zhimin Yang 2023Cancer Communications2023,43,2:0
返回顶部 每页显示:
共1页 首页 上一页 第1页 下一页 末页 /1 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费