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| 1 | Novel Method for Spatial Angle Measurement Based on Rotating Planar Laser Beams显示文摘Spatial angle measurement,especially the measurement of horizontal and vertical angle,is a basic method used for industrial large-scale coordinate measurement.As main equipments in use,both theodolites and laser trackers can provide very high accuracy for spatial angle measurement.However,their industrial applications are limited by low level of automation and poor parallelism.For the purpose of improving measurement efficiency,a lot of studies have been conducted and several alternative methods have been proposed.Unfortunately,all these means are either low precision or too expensive.In this paper,a novel method of spatial angle measurement based on two rotating planar laser beams is proposed and demonstrated.Photoelectric receivers placed on measured points are used to receive the rotating planner laser signals transmitted by laser transmitters.The scanning time intervals of laser planes were measured,and then measured point's horizontal/vertical angles can be calculated.Laser plane's angle parameters are utilized to establish the abstract geometric model of transmitter.Calculating formulas of receiver's horizontal/vertical angles have been derived.Measurement equations' solvability conditions and judgment method of imaginary solutions are also presented after analyzing.Proposed method for spatial angle measurement is experimentally verified through a platform consisting of one laser transmitter and one optical receiver.The transmitters used in new method are only responsible for providing rotating light plane signals carrying angle information.Receivers automatically measure scanning time of laser planes and upload data to the workstation to calculate horizontal angle and vertical angle.Simultaneous measurement of multiple receivers can be realized since there is no human intervention in measurement process.Spatial angle measurement result indicates that the repeatable accuracy of new method is better than 10'.Proposed method can improve measurement's automation degree and speed while ensuring measurement accuracy. | YANG Linghui YANG Xueyou ZHU Jigui DUAN Muqiong LAO Dabao | 2010 | Chinese Journal of Mechanical Engineering2010，23，6： | 18 |
| 2 | 1997-2007年上呼吸道感染患儿鼻咽部6群肺炎链球菌分离株的耐药性变化显示文摘目的明确1997—2007年分离自北京儿童医院门诊上呼吸道感染患儿鼻咽部的6群肺炎链球菌的型别构成和对抗菌药物敏感性状况,及其年代变化特点。方法采用荚膜肿胀试验鉴定6群、6A和6B型;采用multi-bead assay分型方法从6A型中鉴定6C型;用E试验法检测青霉素等8种抗菌药物对细菌的MIC。结果 1997—2007年分离到肺炎链球菌893株,从中鉴定出6群119株(13.3%),包括6A型71株(59.7%)、6B型39株(32.7%)和6C型9株(7.6%)。6群菌株对青霉素、头孢呋辛和红霉素的不敏感率分别从1997—2000年的3.4%、1.7%和86.2%上升到2005—2007年的29.4%、23.5%和100%,MIC90和最大MIC值也升高。6A、6B和6C型菌对青霉素的不敏感率分别为7.2%、24.3%和0。结论北京儿童医院呼吸道感染患儿分离的病原菌6群肺炎链球菌以6A型(59.7%)为主,存在新发现的6C型;6群肺炎链球菌对β内酰胺类抗生素和红霉素的耐药性在增加,6B型菌株抗生素耐药性较6A型、6C型强。 | 刘尊杰 姚开虎 袁林 Yu Jigui 高薇 俞桑洁 Moon H.Nahm 杨永弘 | 2010 | 中国感染与化疗杂志2010，10，3： | 9 |
| 3 | Properties and microstructure of NiO/SDC materials for SOFC anode applications显示文摘NiO/SDC composites and Ni/SDC cermets for solid oxide fuel cell (SOFC) anode applications were prepared from nickel oxide(NiO)and samaria doped ceria (SDC) powders by the powder metallurgy process. The physical and mechanical properties, as well as the microstructure of the NiO/SDC composites and the Ni/SDC cermets were investigated. It is shown that the sintering temperature of the NiO/SDC composites and NiO content plays an important role in determining the microstructure and properties of the NiO/SDC composites, which, in turn, influences the microstructure,electrical conductivity, and mechanical properties of the Ni/SDC cermets. The present study demonstrated that composition and tprocess parameters must be appropriately selected to optimize the microstructure and the properties of NiO/SDC materials for solid oxide fuel cell applications. | CHENG Jigui DENG Liping ZHANG Benrui SHI Ping MENG Guangyao | 2007 | Rare Metals2007，26，2： | 3 |
| 4 | Serial Interval and Reproductive Number of COVID-19 Among 116 Infector-infectee Pairs—Jingzhou City,Hubei Province,China,2020显示文摘What is already known about this topic?The key epidemiological parameters including serial interval,basic reproductive number(R0),and effective reproductive number(Rt)are crucial for coronavirus disease 2019(COVID-19)control and prevention.Previous studies provided different estimations but were often flawed by some limitations such as insufficient sample size and selection bias.What is added by this report?In this study,a total of 116 infector-infectee pairs meeting strict inclusion criteria were selected for analysis.The mean serial interval of COVID-19 was 5.81 days(standard deviation:3.24).The estimated mean with 95%confidence interval of R0 was 3.39(3.07–3.75)and 2.98(2.62–3.38)using exponential growth(EG)and maximum likelihood(ML)methods,respectively.The Rt in the early phase of the epidemic was above 1 with the peak of 4.43 occurring on January 8,and then showing subsequent declines and approaching 1 on January 24.What are the implications for public health practices?This study supports previous findings that COVID-19 has high transmissibility and that implementing comprehensive measures is effective in controlling the COVID-19 outbreak. | Tian Liu Li Qi Menglei Yao Keqing Tian Maowen Lin Hong Jiang Minmin Zeng Jigui Huang | 2020 | China CDC weekly2020，2，27： | 2 |
| 5 | An improved particle swarm optimization algorithm for flowshop scheduling problem显示文摘 | Zhang Changsheng Sun Jigui Zhu Xingjiu | 2008 | Information Processing Letters2008，108，4： | 1 |
| 6 | An alternate two phases particle swarm optimization algorithm for flow shop scheduling problem显示文摘 | Zhang Changsheng Sun Jigui | 2009 | Expert Systems with Applica- tions2009，36，3： | 1 |
| 7 | On the green density, sintering behavior and electrical property of tape cast electrolyte films显示文摘 | CHENG Jigui ZHA Shaowu FANG Xiaohong | 2002 | Mater Res Bull2002，37，： | 1 |
| 8 | Feature selection with dynamic mutual information显示文摘 | LIU HUAWEN SUN JIGUI LIU LEI | 2009 | Pattern Recognition2009，42，7： | 1 |
| 9 | Post-processing of associative classification rules using closed sets显示文摘 | HUAWEN LIU JIGUI SUN HUIJIE ZHANG | 2008 | Expert Systems with Applications2008，36，3： | 1 |
| 10 | Design of a Transverse-flux Permanent-magnet Linear Generator and Controller for Use with a Free-piston Stirling Engine显示文摘Transverse-flux with high efficiency has been applied in Stirling engine and permanent magnet synchronous linear generator system,however it is restricted for large application because of low and complex process.A novel type of cylindrical,non-overlapping,transverse-flux,and permanent-magnet linear motor(TFPLM) is investigated,furthermore,a high power factor and less process complexity structure research is developed.The impact of magnetic leakage factor on power factor is discussed,by using the Finite Element Analysis(FEA) model of stirling engine and TFPLM,an optimization method for electro-magnetic design of TFPLM is proposed based on magnetic leakage factor.The relation between power factor and structure parameter is investigated,and a structure parameter optimization method is proposed taking power factor maximum as a goal.At last,the test bench is founded,starting experimental and generating experimental are performed,and a good agreement of simulation and experimental is achieved.The power factor is improved and the process complexity is decreased.This research provides the instruction to design high-power factor permanent-magnet linear generator. | ZHENG Jigui HUANG Yuping WU Hongxing ZHENG Ping | 2016 | Chinese Journal of Mechanical Engineering2016，29，4： | 1 |
| 11 | The development of carbon fiber/Cu composites 显示文摘 | CHENG Jigui WANG Hualin XIA Yonghong | 2000 | Mater Rev2000，14，4： | 1 |
| 12 | Classification and dynamicals of stably dissipative Lotka-Volterra systems 显示文摘 | Zhao Xiaohua Luo Jigui | 2010 | Interanational Journal of Nonlinear Me- chanics2010，45，6： | 1 |
| 13 | Calibration of a stereo- scopic system without traditional distortion models 显示文摘 | Wang Wei Zhu Jigui Lin Jiarui | 2013 | Op- tical Engineering2013，52，09： | 1 |
| 14 | Electrical properties of pureand Sr2 doped Bi2Al4O9 ceramics显示文摘 | Shaown Zha Jigui Cheng Yan Liu etal | 2003 | Solid State ionics2003，21，3： | 1 |
| 15 | Knowledge compilation using the extension rule 显示文摘 | Lin Hai Sun Jigui | 2004 | Journal of Automated Reasoning2004，32，2： | 1 |
| 16 | Fuzzy approximation in intelligent decision making显示文摘 | Sun Jigui | 2002 | Proceeding of International conference on intelligent information technology2002，，02： | 1 |
| 17 | Feature selection with dynamic mutual information显示文摘 | Liu Huawen Sun Jigui | 2009 | Pattern Recognition2009，42，： | 1 |
| 18 | Theorem proving based on extension rule 显示文摘 | Lin Hai Sun Jigui Zhang Yimin | 2003 | Journal of Automated Reasoning2003，31，1： | 1 |
| 19 | Preparation and characterizationof Mo-15Cu Superfine Powders by a Gelatification-reduction process显示文摘 | Peng Song Jigui Cheng Lei Wan | 2009 | Journal of Alloys and Compounds2009，476，： | 1 |
| 20 | Overexpression of Banna mini-pig inbred line fatty acid binding protein 3 promotes adipogenesis in 3T3-L1 preadipocytes显示文摘 | Yi Bao Wang Jigui Wang Shuang | 2014 | Cell Biology International2014，38，8： | 1 |
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