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Wrinkled petals and stamens 1,is required for the morphogenesis of petals and stamens in Lotus japonicus

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Cell Research 2006年第5期16卷 499-506页

作者： Jiang Hua Chen~1 Ji Liang Pang~2.Li Lin Wang~2.Yong Hai Luo~1 Xin Li~3 Xiang Ling Cao~1 Kui Lin~3 Wei Ma~3 Xiao He Hu~1 Da Luo~(1,3) ~1National Laboratory of Plant Molecular Genetics,Institute of Plant Physiology and Ecology,Shanghai Institutes for Biological Sciences,and graduate School of the chinese {2. of Sciences,chinese {2. of Sciences,300 Fenglin Road,Shanghai 2.0032.china ~2.chool of Life Science,Hangzhou Normal College,16 Xuelin Road,Hangzhou 310018,china ~3School of Life Science and Biotechnology,Shanghai Jiao Tong university,1954 Huashan Road,Shanghai 2.0030,china NationalLaboratoryofPlantMolecularGenetics InstituteofPlantPhysiologyandEcologyShanghaiInstitutesforBiologicalSciencesandGraduateSchooloftheChineseAcademyofSciencesChineseAcademyofSciences300FenglinRoad

Although much progress has been made in understanding how floral organ identity is determined during the floraldevelopment,less is known about how floral organ is elaborated in the late floral developmental *** we de-scribe a novel floral mutant,wrinkledt petals and stamensl (wps1),which shows defects in the development of petalsand *** analysis indicates that wps1 mutant is corresponding to a single recessive locus at the long arm ofchromosome *** early development of floral organs in wps1 mutant is similar to that in wild type,and the malfunctionof the mutant commences in late developmental stages,displaying a defect on the appearance of petals and *** mature flower,petals and stamen filaments in the mutant are wrinkled or folded,and the cellular morphology underL1 layer of petals and stamen filaments is *** is found that the expression patterns of floral organ identity genesare not affected in wps1 mutants compared with that of wild type,consistent with the unaltered development of allfloral ***,the identities of epidermal cells in different type of petals are *** histologicalanalysis shows that in wps1 flowers all petals are irregularly folded,and there are knotted structures in the petals,whilethe shape and arrangement of inner cells are malformed and *** on these results,we propose that Wps1acts downstream to the class B floral organ identity genes,and functions to modulate the cellular differentiation duringthe late flower developmental stages.

关键词： Lotus japonicus wps1 mutant ABC model floral organ differentiation

不同剂量丙泊酚对大鼠脑内血红素氧化酶-2.性的影响

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中国新药与临床杂志 2002年第1期21卷 30-32页

作者：姚新梅李树人王元身首都医科大学附属北京友谊医院麻醉科北京100050 首都医科大学神经外科研究所北京100054

目的 :研究不同剂量丙泊酚对大鼠脑内血红素氧化酶 2.(HO 2.)活性的影响。方法 :正常SD大鼠 2.4只 ,随机分为 4组 :对照组 ,丙泊酚小、中、大剂量组 ,每组各 6只 ,依次腹腔注射生理盐水 10mL·kg- 1、丙泊酚 5 0 ,10 0 ,2.0 0mg·kg- ... 详细信息

目的 :研究不同剂量丙泊酚对大鼠脑内血红素氧化酶 2.(HO 2.)活性的影响。方法 :正常SD大鼠 2.4只 ,随机分为 4组 :对照组 ,丙泊酚小、中、大剂量组 ,每组各 6只 ,依次腹腔注射生理盐水 10mL·kg- 1、丙泊酚 5 0 ,10 0 ,2.0 0mg·kg- 1。应用免疫组织化学方法 ,光镜观察丙泊酚麻醉大鼠小脑、端脑和脑桥HO 2.性神经元的分布。并采用计算机彩色图像分析仪测定各组HO 2.性细胞数或阳性产物面积。结果 :(1)大鼠脑内HO 2.性神经元分布广泛。 (2.)腹腔注射丙泊酚各剂量组能明显抑制大鼠脑内HO 2.性。结论 :丙泊酚可能抑制大鼠脑内HO

关键词：丙泊酚血红素氧化酶免疫组织化学中枢神经系统

Estimation of Stator Resistance and Temperature Measurement in Induction Motor Using Wavelet Network

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Estimation of Stator Resistance and Temperature Measurement ...

第二十六届中国控制会议

作者： Huang Weili1,Huang Weijian1,Liu Lin2.1.Hebei university of Engineering,Handan 056038,P.R.china2.{2. university of Aeronautics and Astronautic,{2. 056038,P.R.china

To complete induction motor thermal protection,a novel stator resistance estimation approach for stator winding temperature monitoring based on wavelet network and parameter identification is *** the use of wavelet network that accurately localizes the characteristics of a signal in the time frequency domains,the occurring instants of the signal change can be identified by the multi-scale representation *** stator and rotor resistance are calculated using mathematical model and the motor speed is estimated by use of wavelet network,and then the temperature is obtained ac- cording to the principle that the metal resistance depends on its *** improved least squares algorithm (LSA) transform is used to fulfill the network structure and parameter identification,and then the mapping relationship between the stator voltage,stator current,power factor angle and the rotor speed is determined using the wavelet *** simulation results demonstrate that the proposed method is effective for temperature monitoring of asynchronous motor.

关键词： Asynchronous motor Wavelet network Parameter identification Stator resistance Temperature monitoring

Saturation Effects in Mode-competition Effects of a Two-mode Laser with Multiplicative Noise

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chinese Journal of Lasers 1999年第2期 67-71页

作者： CHEN Limei 1,2. CAO Li 1,3 QIU Junlin 2. ( 1 Department of Physics, 2. National Laboratory of Laser Technology, Huazhong university of Science and Technology, Wuhan 430074, china 3 CCAST (World Laboratory), {2. 1

１ＩｎｔｒｏｄｕｃｔｉｏｎＴｗｏｍｏｄｅｌａｓｅｒｓ（ＴＭＬ）ｈａｖｅｂｅｎｔｈｅｓｕｂｊｅｃｔｏｆｅｘｔｅｎｓｉｖｅｉｎｔｅｒｅｓｔｉｎｒｅｃｅｎｔｙｅａｒｓ．Ｍｏｄｅｃｏｍｐｏｔｉｔｉｏｎｅｆｅｃｔｉｓｏｎｅｏ... 详细信息

１ＩｎｔｒｏｄｕｃｔｉｏｎＴｗｏｍｏｄｅｌａｓｅｒｓ（ＴＭＬ）ｈａｖｅｂｅｎｔｈｅｓｕｂｊｅｃｔｏｆｅｘｔｅｎｓｉｖｅｉｎｔｅｒｅｓｔｉｎｒｅｃｅｎｔｙｅａｒｓ．Ｍｏｄｅｃｏｍｐｏｔｉｔｉｏｎｅｆｅｃｔｉｓｏｎｅｏｆｔｈｅｉｍｐｏｒｔａｎｔｐｒｏ...

关键词： saturation effect mode competition effect multiplicative noise

Electrochemical Studies of Paclitaxel Interaction with Tubulin

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chinese Chemical Letters 2000年第4期11卷 351-352页

作者： Yong YU Qi Long LI (Department of Chemistry, beijing Normal Normal university. beijing 100873) beijing Normal Univ Dept Chem Beijing 100875 Peoples R China

A highly sensitive linear sweep voltammetric method was developed for the determination of paclitaxel and the mechanism of the binding of paclitaxel to tubulin was studied. Tubulin dimer formed with paclitaxel an electrochemically nonactive complex with a combination ratio of 2.2. Its stability constant was 2.85 x 10(2.). So the tubulin dimer had two binding sites for paclitaxel. The experiment showed that the binding sites of paclitaxel to tubulin dimer were different from that of Ca2. to tubulin dimer.

关键词： paclitaxel tubulin linear sweep voltammetry

Biosynthesis,characterization,and in vitro antimicrobial activities of violacein derivatives with different recombination

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第三届全国微生物资源学术暨国家微生物资源平台运行服务研讨会

作者： HaiSheng Wang1,YanChun Yan1,Wei Wu1,RuiBo Jiang2.and Xin-Hui Xing3 1 graduate School of chinese {2. of Agricultural Science,beijing,Chna 2.Institute of Agricultural Resources and Regional Planning,CAAS,beijing,Chna 3 Institute of Biochemical Engineering,Department of Chemical Engineering,Tsinghua Universty,beijing,china

With the growing global threat of antibiotics-resistant superbugs and increasing economic and environmental concerns on synthetic production of natural products and their analogs,it is imperative to developing alternate platforms for the discovery,production and development of new antimicrobial agents and to treat infections of human and animal *** alkaloids have received considerable interest for several years because of their broad range of biological *** studies are focusing on the bisindole microbial pigments to reveal how these compounds can provide a survival advantage for certain microorganisms in natural ***(Vio),a bisindole natural pigment isolated from several bacteria,have attracted much attention recently for its multiple important biological activities including antibacterial,antiviral,anti-tumor,and anti-oxidant *** order to give a better insight into violacein’s bioactivity,two violacein derivatives,deoxyviolacein and oxyviolacein,were biosynthesized in good yield by wild and engineering strains *** structures of the newly synthesized compounds were confirmed based on the analysis by HPLC-MS,1H-13C *** crude extracts of violacein derivatives were evaluated for their antimicrobial activities against nine bacteria and fourteen *** violacein derivatives exhibited moderate activities against Gram-positive bacteria and also showed pronounced antifungal ***,no molecule displayed activity against the gram-negative bacteria *** compounds displayed interesting antifungal *** overall results of the present work provide baseline information for the potential use of violacein and its derivative as an antimicrobial germicide.

关键词：

CONSTANT AMPLITUDE FATIGUE STRENGTH AND P-S_a-S_m-N CAMBER FAMILY

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chinese Journal of Aeronautics 1996年第1期9卷 28-37页

作者： Ni Kan(Department of Naval Architecture and Ocean Engineering,Shanghai Jiao Tong Universily, Shanghai, china, 2.0030)Gao Zentong(Department of Flight Vehicle Design and Applied Mechanics, beijing {2. of Aeronautics and Astronautics,beijing, china, Dept. of Nav. Arch. and Ocean Eng. Shanghai Jiao Tong University Shanghai 200030 China Dept. Flight Vehicle Des. Appl. M. Beijing Univ. Aero. and Astronaut. Beijing 100083 China

Functions of the P-Sa-Sm-N camber family in constant amplitude cyclic loading are established by combining the P-S-N curve family and constant life diagrams, which is feasible in engineering application. Meanwhile, the preconditions of mechanics and probability-statistics are clearly presented. According to Weibull's assumptions i.e., monotone decreasing and nonintersecting about individual S-N curves, the relation of isostructural measure preserving transformation (IMPT) between the probability spaces of constant amplitude fatigue life and constant amplitude fatigue strength is proved based on the measure theory. Therefore, an individual specimen possesses the same percentile value in different probability spaces of fatigue life and fatigue strength under constant amplitude loading. The P-Sa -Sm-N cambers of individual, population and sample are also distinguished.

关键词： amplitude camber fatigue life fatigue (materials) strength

Research on the Driver Fatigue Monitoring Method Based on the Dempster-Shafer Theory

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Research on the Driver Fatigue Monitoring Method Based on th...

2.10 chinese Control and Decision Conference

作者： Deng Sanpeng~(1,2.,Xu Xiaoli~(1,3),Yang Xuecui~2.Miao Dehua~2.1.Department of Machine & Vehicle Engineering,beijing Institute of Technology,beijing 100080,{2. 2.Tianjin Key Laboratory of High Speed Cutting & Accurate Process Technology,Tianjin university of Technology and Education, Tianjin,3002.2.{2. 3.beijing Information Science & Technology university,beijing,100192.{2.

＜正＞Fatigue driving is one of the most important factors leading to traffic ***’s of greatest significance to avoid fatigue driving and reduce traffic accidents by monitoring the state of drivers’ fatigue accurately and warning them of their fatigue.A fatigue assessment method based on the weighted Dempster-Shafer（D-S） theory has been proposed by using the detected multi-source information such as the image,human pulse and the steering wheel movement in an imperceptible way so as to enhance the fatigue monitoring accuracy and system robustness.

关键词： D-S evidence theory Driver fatigue Multi-source information fusion

STIFFNESS EQUATION OF FINITE SEGMENT FOR FLEXIBLE BEAM-FORMED STRUCTURAL ELEMENTS

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chinese Journal of Mechanical Engineering 2000年第1期13卷 17-24页

作者： Yun Chao Zong Guanghua (Institute of Robotics, beijing university of Aeronautics and Astronautics Liu Youwu (Tianjin university) 北京航空航天大学北京天津大学天津

The finite segment modelling for the flexible beam-formed structural elements is presented, in which the discretization views of the finite segment method and the difference from the finite element method are introduced. In terms of the nodal model, the joint properties are described easily by the model of the finite segment method, and according to the element properties, the assumption of the small strain is only met in the finite segment method, i. e., the geometric nonlinear deformation of the flexible bodies is allowable. Consequently,the finite segment method is very suited to the flexible multibody structure. The finite segment model is used and the are differentiation is adopted for the differential beam segments. The stiffness equation is derived by the use of the principle of virtual work. The new modelling method shows its normalization, clear physical and geometric meanings and simple computational process.

关键词： Beam-formed structural element Finite segment Stiffness equation Shape function