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国际能源转换及利用学术会议

作者： SongYaozu ZhangGuanzhong Xu Jinming Shi Ling~1 Mei Yi~2.department of Engineering Mechanics Tsinghua university {2. 100084 P. R. china 1 Shi Ling: department of Thermal Engineering, Tsinghua university, {2. 100084, china 2.Mei Yi: Institute of Yunnan Chemical Engineering, Kunming, Yunnan, china

In this paper, a method of recycle and utilization of waste heat from burning elemental phosphorus in preparing phosphoric acid is proposed. A device for recycle of waste heat is installed in phosphoric burner. By using this device, a lot of heat released by the spontaneous combustion of elemental phosphorus can be recycled to produce steam-gas with pressure of 8 kg/cm, which can melt the elemental phosphorus from solid state to liquid state. As a result, the steamboiler and recycle system of cooling water left out both. The thermal energy released in preparing phosphorus acid is recycled and utilized effectively. Therefore, the sources of energy and resources of coal are both saved, heat pollution is avoided, and the production cost of phosphoric acid is decreased. The basic principle and method for recycle of the waste heat in phosphoric burner are presented in detail.

关键词： Thermal energy utilization Waste heat recycle Energy saving

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CVD Synthesis of Single-Walled Boron Nitride Nanotubes

CVD Synthesis of Single-Walled Boron Nitride Nanotubes

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2.11中国材料研讨会

作者： Muhong Wu 1,3,Wenlong Wang,1,Xuedong Bai,1,Yu Sui 3,and Enge Wang,1,2.1 beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,beijing 100190,{2. 2.International Center for Quantum Materials,School of Physics,peking university,beijing 100871,{2. 3 Center for Condensed Matter Science and Technology (CCMSIT),department of Physics,Harbin Institute of Technology,Harbin 150001,{2.

＜正＞As the binary III-VI homolog of carbon nanotubes（CNTs）,the boron nitride nanotubes（BNNTs）share the most structural similarity with CNTs and can be regarded as an important

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Energy Shaping for Coordinating Internally Actuated Vehicles

Energy Shaping for Coordinating Internally Actuated Vehicles

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2.11 Chinese Control and Decision Conference（CCDC）

作者： Fan Wu is with the State Key Laboratory for Turbulence and Complex Systems,College of Engineering,peking university,{2. 100871 Zhiyong Geng is with the State Key Laboratory for Turbulence and Complex Systems,College of Engineering,peking university,{2. 100871

This paper considers the problem of steady motion stabilization and coordination for two vehicles with internal moving mass *** coordinating and stabilizing control laws are derived using energy shaping in the context... 详细信息

关键词： Moving Mass Actuator Underactuated Energy Shaping Stabilization

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Transmission of two-dimensional liquid-liquid Phononic Crystals

Transmission of two-dimensional liquid-liquid Phononic Cryst...

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2.11年全国压电和声波理论及器件应用研讨会

作者： Feng-lian Li~ 1 Yue-sheng Wang~(1,*) Chuanzeng Zhang~2.1 Institute of Engineering Mechanics,beijing Jiaotong university,beijing 100044,china 2.department of Civil Engineering,university of Siegen,D-57076 Siegen,Germany

＜正＞Boundary element method（BEM） is presented to compute the transmission spectra of two-dimensional（2.） liquid-liquid phononic *** are composed of square or triangular lattices which have finite layers along th... 详细信息

关键词： phononic crystals boundary element method transmission liquid-liquid

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高校开展课余体育训练的教育学依据与目标定位

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体育学刊 2004年第2期11卷 77-79页

作者：杨铁黎孙景立首都体育学院社会体育系北京100088 南阳师范学院体育系河南南阳473061

从学校是培养各级各类人才的基地、奥林匹克运动的宗旨、课余体育训练对人才培养的特殊作用3个方面论述了学校开展课余体育训练的必要性;同时还提出了我国开展课余体育训练的目标定位是在全面推动学校体育的基础上,培养高水平的学生运... 详细信息

从学校是培养各级各类人才的基地、奥林匹克运动的宗旨、课余体育训练对人才培养的特殊作用3个方面论述了学校开展课余体育训练的必要性;同时还提出了我国开展课余体育训练的目标定位是在全面推动学校体育的基础上,培养高水平的学生运动员。

关键词：课余体育训练教育学高等学校

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The Calcium-responsive Transactivator is Implicated in Glucotoxicity Induced Apoptosis in Pancreatic β -cells

The Calcium-responsive Transactivator is Implicated in Gluco...

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第八届海峡两岸心血管科学研讨会

作者： MEN Xiu-li~1,ZHANG Wen-jian~2.XU Shing-qing~2.Xu Mei~2. PENG Liang~1,YE Li-ya~2.LOU Jin-ning~(2.) (1.department of Pathophysiology,Hebei United university,Tangshan,063000,{2. 2.Institute of Clinical Medical Sciences,{2.-Japan Friendship Hospital,beijing 10002.,{2.)

Objective To explore the effect of CREST gene expression on glucotoxicity induced apoptosis in pancreatic beta - *** The expression of CREST in the pancrease of hyperglycemic GK rats comparing with normal - glucose controls by immunohistochemistry *** - 1 stable cell lines allowing inducible expression of CREST(calcium - responsive transactivator,CREST) was established using the Tet - on *** expression of CREST induced by doxycycline in the cell line was determined by immunofluorescence staining and western *** secretion was analyzed following culture of the cell line in standard or high glucose(30mM) conditions with or without *** Ca concentration was detected following culture of the cell line in standard or high glucose(30mM) conditions by fluo -3/AM *** was detected by AnnexinV - PI,TUNEL staining and DNA fragmentation,***-2.and bax were further investigated to probe for the mechanisms of *** The CREST expression is significantly increased in islets of hyperglycemic GK rats comparing with normal - glucose *** proteins were induced in a doxycycline - dependent *** of CREST aggravated high glucose culture -provoked impairment of glucose - stimulated insulin secretion in INS - 1 cells,whereas siRNA knock - down of CREST restored insulin secretory *** of CREST by gene manipulation caused apoptosis in INS - 1 *** addition,high glucose - induced apoptosis was increased by CREST but inhibited by siRNA knock - down of ***,Real - time PCR demonstrated that the expression of bax gene in INS -1 cells were enhanced by induction of CREST,especially under high glucose condition,and induction of CREST resulted in down - regulated of bcl - 2.*** CREST is implicated in beta cell glucotoxicity.

关键词： CREST gene beta cell glucotoxicity bcl-2.gene

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Flavonoid quercetin protects the neurovascular unit in the Aβ2.-35-induced amnesia model:consideration for novel strategy for Alzheimer's disease

Flavonoid quercetin protects the neurovascular unit in the A...

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中国药理学会第十一次全国学术会议

作者： LIU Rui~(1,2.,WU Cai-xia~(1,2.,ZHANG Tian-tai~(1,2.,ZHANG Li~(1,2., LAN Xi~(1,2.,LI Lin~3,DU Guan-hua~(1,2. (1.National Centre for Pharmaceutical Screening,Institute of Materia Medica,Chinese Academy of Medical Sciences & peking Union Medical College,beijing 100050,{2. 2.beijing Key Laboratory of Drug Target and Screening Research,Institute of Materia Medica,Chinese Academy of Medical Sciences & peking Union Medical College,beijing 100050,{2. 3.Xuanwu Hospital Capital Medical university,beijing 100053,{2.)

OBJECTIVE In the absence of a cure for Alzheimer’s disease(AD),development of preventative and therapeutical medications for this disease is particularly *** flavonoid quercetin has demonstrated protective effects against Aβ-induced toxicity on both neurons and endothelial cells,but whether there is an effect on the neurovascular coupling or the related mechanism is *** the present study,we aimed to investigate the anti-amnesic effects of quercetin and explore the underlying mechanisms. METHODS Mice were given an intracerebroventricular injection of Aβ.Quercetin was dissolved in saline administrated orally for 8 *** Morris Water Maze(MWM) training began on the 3 day of quercetin treatment,and mice of each group were trained for five consecutive days;on the 9th day of quercetin treatment,a single probe trial was *** step-through positive avoidance test was performed on the 8 day and 9 day in parallel to the MWM *** regional cerebral blood flow(rCBF) was monitored before the Aα injection and on seven consecutive *** of each group were sacrificed and cerebral cortices were isolated on the 9 *** effects of quercetin on NVU integrity,microvascular function,cholinergic neuronal changes,and the modification of BNDF,p-ERK and p-CREB levels were *** Our results suggested that oral administrations of quercetin conferred robust anti-amnesic effects and neurovascular coupling protection in Aβ-induced amnesic *** these effects,treatment with quercetin at 10 mg·kg,2. mg·kg or 40 mg·kg had a significant group effect on step-through latency and error times during retention trials in the step-through positive avoidance ***,the escape latency of 2. mg·kg quercetin-administrated mice significantly declined from day 4,and the escape latencies in the quercetin 10 mg·kg and 40 mg·kg groups declined in Day *** the quercetin 2. mg·kg group,major components of neurovascular unit were maintained by the increased fluoresc

关键词： Alzheimer’s disease Amyloidβpeptide Blood-brain barrier Neurovascular unit Natural product

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Dimensions of the Kernels of Linear Operators and Their Algebraic Adjoints

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Acta Mathematica Sinica,English Series 1998年第4期14卷 441-446页

作者： Yang Lihua, Institute of Mathematics, Academia Sinica, beijing 100080, china {2. of Scientific Computing, Zhongshan university, Guangzhou 5102.5, chinaSun Xingming, {2. of Physics, Xiangtan Teachers’ College, Xiangtan 4112.1, china Institute of Mathematics Academia Sinica 100080 Beijing China

In this paper we study the kernels of a linear operator and its algebraic adjoint by studying their restriction on a subspace, a Banach space, such that the restriction is the difference of the identity and a compact operator under some conditions, and therefore some results on compact operator theory can be applied. As an example we study the M-scale subdivision operators.

关键词： Linear space Compact operator Subdivision operator

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寻求不一致的一致——试论软法与协商民主机制的结构性耦合

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法制与社会发展 2007年第4期13卷 66-77页

作者：魏武安徽财经大学法学院北京大学法学院北京100871

卢曼认为,法律是一个使用合法/不合法的独特符号作为沟通手段的独立的规则系统,是人类行为的规范性预期的制度化。法律规范作为独立系统欲保持稳定与再生则必须在封闭运行的同时与外部环境之间保持认知的开放,其对外部环境刺激的稳定回... 详细信息

卢曼认为,法律是一个使用合法/不合法的独特符号作为沟通手段的独立的规则系统,是人类行为的规范性预期的制度化。法律规范作为独立系统欲保持稳定与再生则必须在封闭运行的同时与外部环境之间保持认知的开放,其对外部环境刺激的稳定回应模式即为结构性耦合。从此视角观察,软法是一个相对而言制度化程度较低的,其稳定预期的功能相对弱化了的规则系统,它允许中间程度的效力,其创生本身具有回应性目的。软法建构的环境在国际关系和国内民主政治领域的表现形式就是协商民主。协商民主政治机制本身的出现就具有回应民主程度问题的性质,其成功的几个关键机制需要弹性的规范体系。软法能够模式化地回应协商民主的需要而与之形成结构性耦合。

关键词：系统软法协商民主结构性耦合

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Expression Pattern of BADH Gene Promoters from Dendranthema lavandulifolium in Tobacco

Expression Pattern of BADH Gene Promoters from Dendranthema ...

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2.09整合植物生物学研讨会

作者： Huawen Cao~1,Zhenlin Liu~2.He Huang~1,Xinli Xia~3,Weilun Yin~4 and Silan Dai~(1*) 1 College of Landscape Architecture,beijing Forestry university,beijing 100083,china 2.department of Horticulture and Landscape Architecture,Hebei Normal university of Science and Technology,Changli 066600,china 3 College of Biological Sciences and Technology,beijing Forestry university,beijing 100083,china 4 College of Forestry,beijing Forestry university,beijing 100083,china.

Four promoters,DBP11(1 2.0 bp),DBP12.1 2.9 bp),DBP2.(1 2.3 bp)and DBP2.(574 bp)of BADH gene were cloned from Dendranthema lavandulifolium *** analysis showed some cis-elements response to ABA,high-salt and drought ind...

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