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8篇 您的检索式:作者名="Weizheng Yan"
    题名 作者 年代 出处 被引量
1Signal peptide replacements enhance expression and secretion of hepatitis C virus envelope glycoproteins显示文摘很多研究集中了于 glycoproteins E1 和针对 anti-HCV 疫苗和禁止者的发展的丙肝病毒(HCV ) 的 E2。E1/E2 表示和分泌物的改进为子单元疫苗开发为这些 glycoproteins 并且这样的描述是批评的。在这研究,我们设计了并且综合三信号肽基于联机节目 SignalP, TargetP,和 PSORT 定序,然后移开并且代替由重叠先于 E1/E2 的信号肽聚合酶链反应方法。我们在哺乳动物的房间在 E1/E2 表示和分泌物上估计了这改变的效果,用西方的污点分析,点污点,和 Galanthus nivalis 凝集素 lectin 俘获酶免疫分析。代替与织物 plasminogen 使活跃之物和 Gaussia 酶的信号肽先于 E1 和 E2 的肽在哺乳动物的房间导致了 E1/E2 表示和 E1 的分泌物的最大的改进,没有改变 glycosylation。如此的进展将帮助两个都便于 E1/E2 生物学的研究和一支有效 HCV 子单元疫苗的发展。在这研究使用的策略能在哺乳动物的房间被用于另外的 glycoproteins 的表示和生产基于线的系统。Bo Wen Yao Deng Jie Guan Weizheng Yan Yue Wang Wenjie Tan Jimin Gao 2011Acta Biochimica et Biophysica Sinica2011,43,2:6
2A prediction model of NH3 concentration for swine house in cold region based on Empirical Mode Decomposition and Elman neural network显示文摘In order to improve the accuracy and reliability of ammonia(NH3)concentration prediction,which can provides a support to the ventilation control strategy,so as to reduce the impact of NH3 on the health and productivity of swine,this paper proposed an NH3 concentration prediction method based on Empirical Mode Decomposition(EMD)and Elman neural network modelling.The NH3 concentration and other four environmental parameters including temperature,humidity,carbon dioxide and light intensity were decomposed into several different time-scale intrinsic mode functions(IMFs).Then,the Elman neural network prediction model was used to predict each IMF.The predicted NH3 was obtained by reconstructing all the IMFs by EMD.The results show that for the proposed method,the determination coefficient between the predicted and real measured value is 0.9856,the Mean Absolute Error is 0.7088 ppm,the Root Mean Square Error is 0.9096 ppm,and the Mean Absolute Percentage Error is 0.41%.Compared with the Elman neural network,the proposed method has a good improvement in the accuracy,and provide effective parameters for the environmental monitoring of the swine house and the regulation of the NH3 concentration.Weizheng Shen Xiao Fu Runtao Wang Yanling Yin Yan Zhang Udaybeer Singh Bilegtsaikhan Lkhagva Jian Sun 2019Information Processing in Agriculture2019,6,2:4
3In-Situ FT-IR Investigation Methane to Syngas over of Partial Oxidation of Rh/SiO2 Catalyst显示文摘Partial oxidation of methane to syngas(POM)over Rh/SiO_2 catalyst was investigated using in-situ FT-IR.When methane interacted with 1.0wt%Rh/SiO_2 catalyst,it was dissociated to adsorbed hydrogen and CH_x species.The adsorbed hydrogen atoms were transferred to SiO_2 surface by'spill-over'and reacted with lattice oxygen to form surface -OH species. POM mechanism was investigated over Rh/SiO_2 catalyst using in-situ FT-IR.It was found that CO_2 was formed before CO could be detected when CH_4 and O_2 were introduced over the preoxidized Rh/SiO_2 catalyst,whereas CO was detected before CO_2 was formed over the prereduced Rh/SiO_2 catalyst.Tinghua Wu Dongmin Lin Ying Wu Xiaoping Zhou Qiangu Yan Weizheng Weng Huilin Wan 2007Journal of Natural Gas Chemistry2007,16,3:1
4In situ time-resolved FTIR investigation on the reaction mechanism of partial oxidation of methane to syngas over supported Rh and Ru catalysts显示文摘In situ time-resolved FTIR spectroscopy was used to study the reaction mechanism of partial oxidation of methane (POM) to synthesis gas and the reaction of CH4/O2/He (2/1/45, molar ratio) gas mixture with adsorbed CO species over Rh/SiO2, Ru/γ-Al2O3 and Ru/SiO2 catalysts at 500-600℃. It was found that CO is the primary product of POM reaction over reduced and working state Rh/SiO2 catalysts. Direct oxidation of CH4 is the main pathway of synthesis gas formation over Rh/SiO2 catalyst. CO2 is the primary product of POM over Ru/γ-Al2O3 and Ru/SiO2 catalysts. The dominant reaction pathway for synthesis gas formation over Ru/γ-Al2O3 catalyst is via the reforming reactions of CH4 with CO2 and H2O. For the POM reaction over Rh/SiO2 and Ru/γ-Al2O3 catalysts, consecutive oxidation of surface CO species is an important pathway of CO2 formation.WENG Weizheng CHEN Mingshu YAN Qiangu WU Tinghua CHAO Zisheng LIAO Yuanyan WAN Huilin 2000Chinese Science Bulletin2000,45,24:1
5Dr. Chi-Ming Chu: Respected founder of molecular virology and pioneer of biologicals in China显示文摘Weizheng Yan Baoying Huang Li Ruan Wenjie Tan 2017Protein & Cell2017,8,9:1
6XPS,Chemical Trapping, and DRFTIR Study on Mechanism of By-Products Formation in Selective (AMM)Oxidation of Propylene on MoO_3 and γ-Bi_2MoO_6显示文摘XPS and chemical trapping experments with H2, NH3, and CH3I as trapping agents were carried out for studying the adsorption of propylene over MoO3 or r-Bi2MoO6. The results show that the fragmentation of carbon chain takes place during the adsorption of propylene through breaking C -C double bond and C-C bond on Mo2+ and the adjacent lattice oxygen, leading to formation of the oxygen- or nitrogen-containing by-products of C1 and C2 species. Diffuse-Reflection Fourier Transform Infrared (DRFTIR) Spectroscopy was used to study the surface species formed during the chemisorption and reaction of propylene over y-Bi2MoO6 at a lower temperature. The results that C1, C2 adspecies were detected by DRFTIR at 175℃ are consistent with the results of XPS and chemical trapping experiments, whlle the results at 50℃ Grasselli et al.Weng Weizheng, Yan Jiyang, Cai Junxiu, Dai Shenjun,Cao Shoujing, Chen Lingling and Wan Huilin (Department of Chemistry, Xiamen University, Ximen) 1990Chemical Research in Chinese Universities1990,6,4:0
7Remote monitoring system for livestock environmental information based on LoRa wireless ad hoc network technology显示文摘The environmental quality of livestock houses is key to livestock breeding and directly affects the growth and health of animals.To target the characteristics of long application cycles and large coverage areas for environmental monitoring in large-scale livestock breeding,the current study designed a remote monitoring system to provide livestock environmental information based on LoRa wireless ad hoc network technology.The system consisted of collection terminals,control terminals,LoRa gateways,and Alibaba Elastic Compute Service.It realized real-time collection,wireless transmission,storage of multi-sensor node data,and remote control.The system was not limited by the selected time or region,because data interaction was achieved by accessing cloud servers using GPRS technology.Users could browse and obtain data from computers and a WeChat mini program from any location with network coverage.Additionally,the system used the improved receiver-based auto rate(RBAR)rate-adaptive algorithm in the LoRa wireless communication component.After application on a dairy farm,the results showed that the whole system collected 6140 sets of environmental data from four dairy houses.The packet loss rate was less than 1%within a communication distance of 604 m,and the communication success rate was greater than 99%.The control instructions were real-time and accurate,and the response time was less than 10 s,which met the remote control needs of large farms.The system provided powerful data and technical support for precision animal production.Xiao Fu Weizheng Shen Yanling Yin Yu Zhang Shichao Yan Shengli Kou Tengyu Qu Musabimana Jacqueline 2022International Journal of Agricultural and Biological Engineering2022,15,4:0
8A new micro programmable blazed grating (μPBG) and its application to multispectral imaging显示文摘一个新微可编程的燃烧栅栏(PBG ) 被设计,制作并且描绘了使用二层的多晶硅表面 micromachining 过程。介绍的 PBG 在结构简单并且有为一个宽波长范围的连续光谱的调节的能力。最大化运作的燃烧角度,当为栅栏条板的关键部件,和它的高度接近了空气差距,酒窝结构被采用。由大小,发达 PBG 样品能到达 5.19 的一个最大的燃烧角度 ???????? 瘠瑡牥瑩吗?YU YiTing YUAN WeiZheng YAN Bin LI TaiPing JIANG ChengYu 2010Chinese Science Bulletin2010,55,11:0
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