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建筑机械 2006年第11S期26卷 67-71页

作者： W.burger 卓永军海瑞克公司中铁隧道股份有限公司河南新乡453000

最近十年来,泥水盾构和土压平衡盾构得到了快速发展和广泛应用。通过对开挖面进行可靠的支撑,这2种类型的盾构都能在地下水位以下的不稳定地层中开挖隧道。盾构系统最重要的部分在于开挖面的开挖过程,或从工程的角度而言,最重要的部分... 详细信息

最近十年来,泥水盾构和土压平衡盾构得到了快速发展和广泛应用。通过对开挖面进行可靠的支撑,这2种类型的盾构都能在地下水位以下的不稳定地层中开挖隧道。盾构系统最重要的部分在于开挖面的开挖过程,或从工程的角度而言,最重要的部分在于刀盘和刀具的布置。本文对泥水盾构和土压平衡盾构刀盘设计的共同点及不同点进行讨论。

关键词：盾构刀盘设计

Operation characteristics of AMS-02 loop heat pipe with bypass valve

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Science Chi.a.Technologi.a. Sciences) 2011年第10期54卷 1813-1819页

作者： WANG NaiHua Joseph burger LUO Feng CUi Zheng XiN GongMin DU WenJing SONG JiWei CHEN Yan CHENG Lin lnstimte of Thermal Science and Engineering Shandong University Jinan 250061 China Laboratory for Nuclear Science MIT at PH Department CERN Geneva CHI211 Switzerland

Loop heat pipes （LHPs） were designed for the alpha magnetic spectrometer （AMS-02） to dissi.a.e heat from the cryocoolers. A bypass valve is applied to the LHP to keep the cryocooler temperature above its limit （-20℃） in cold environment. Extensive experiments were performed on operation characteristics of LHPs with the bypass valve for AMS-02 during thermal vacuum and thermal balance （TVTB） test. We found that the bypass valve can start up successfully in cold environment. With the bypass valve, the evaporator temperature is stable and can meet the requirement of the cryocooler. We analyzed three operating modes of the bypass valve. Set point temperature and regulation temperature shifts were observed and their relations with the bypass valve temperature were given.

关键词： alpha magnetic spectrometer loop heat pipe bypass valve operation characteristic

Siemens VAi Drives innovation in Hot Strip Mill Automation:New Cooling Model improves Manufacture of Multiphase Steels

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Siemens VAI Drives Innovation in Hot Strip Mill Automation:N...

牛疱疹病毒Ⅳ型(DN-599株)DNA的限制性酶切位点图及重复序列分析

2007中国钢铁年会

作者： Klaus Weinzierl Rainer burger Otto Schmid Siemens AG Industrial Solutions ＆ ServicesErlangen Metals Technologies Dr.-Ing. Siemens AG Industrial Solutions ＆ ServicesErlangen Metals Technologies Siemens AG Industrial Solutions ＆ ServicesErlangen Metals Technologies

＜正＞The successes of new materials are accompanied by an increase in the requirements that are placed on the classi.a. material,*** is not only automotive companies that expect to gain an advantage from thinner but still very strong types of steel sheeting which makes their vehicles more efficient and more environmentally compatible;other branches of industry can also profit from strength-relevant load-bearing structures and energy-absorbing components made of dual-phase,multiphase or high-strength steels such as DP,TWiX and *** automation systems have an important influence in stable production of these materials in constant high and reproducible *** the control of the sequences and physi.a. actuators in a hot strip mill,the permanent evolution of process models and technologi.a. control is crucial for a leading edge plant,in addition to the alloying elements,the cooling section is decisive for the properties of these *** and highly flexible control of the cooling process in the cooling section is therefore extremely ***,however,all models involving purely phenomenologi.a. determi.a.ion of the transformation process have displayed weaknesses in respect of exact calculation of the temperature curve and especially the online control of the temporal temperature *** i＆S has now developed a new cooling section control system that uses the so-called Gibbs’ free enthatpy to calculate the steel transformation very precisely on the basis of a thermo dynami.a. *** means of a model-predictive control functions,the stipulated time curve of the temperature change in the cooling section is opti.a.ly adhered to for the whole steel strip within the limits of the plant in *** mills limited by valve and/or water flow mechani.a. layout,the construction of modem lami.a. cooling section has developed and created new arrangements and new types of headers to suit this new requirements in a way that new plants a

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病毒学报 1990年第2期6卷 160-166页

作者：童光志 Dieter burger David T.Shen 中国农业科学院哈尔滨兽医研究所美国华盛顿州立大学USDA-ARS实验室

牛疱疹病毒Ⅳ型(BHV-4)DNA片段分别被重组到质粒pUC9或pBR322的EcoRi、Hind Ⅲ和BamHⅠ位点中,用光生物素(Photobiotin)标记这些重组质粒作为探针,分别与转移到硝基纤维素膜上的病毒DNA的EcoRⅠ、Hind Ⅲ和BamHⅠ片段进行杂交,根据杂交... 详细信息

牛疱疹病毒Ⅳ型(BHV-4)DNA片段分别被重组到质粒pUC9或pBR322的EcoRi、Hind Ⅲ和BamHⅠ位点中,用光生物素(Photobiotin)标记这些重组质粒作为探针,分别与转移到硝基纤维素膜上的病毒DNA的EcoRⅠ、Hind Ⅲ和BamHⅠ片段进行杂交,根据杂交结果及克隆的BHV-4DNA片段的双酶切分析,画出了病毒DNA的EcoRⅠ、Hind Ⅲ和BamHⅠ位点图,井证明在病毒DNA的两末端含有多聚重复序列,左侧含12个重复单位,右侧含6个重复单位,两侧重复单位的排列方向相同,重复单位的大小为2.35kb。病毒DNA分子无任何异构体.

关键词：牛疱疹病毒酶位点图重复序列

牛传染性鼻气管炎病毒LA株DNA的分子克隆

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中国兽医科技 1990年第7期20卷 39-40页

作者：童光志 Dieter burger 中国农业科学院哈尔滨兽医研究所美国华盛顿州立大学

本实验用鸟枪法和选择法将牛传染性鼻气管炎病毒(iBRV)的LA株DNA克隆到载体质粒pBR325,pBR322或pUC_9的HindⅢ位点中。经用光生物素标记的iBR DNA和牛胸腺细胞DNA与各重组质粒杂交筛选后,共得到10个病毒DNA的HindⅢ片段,分别是A,B,C,E,G... 详细信息

本实验用鸟枪法和选择法将牛传染性鼻气管炎病毒(iBRV)的LA株DNA克隆到载体质粒pBR325,pBR322或pUC_9的HindⅢ位点中。经用光生物素标记的iBR DNA和牛胸腺细胞DNA与各重组质粒杂交筛选后,共得到10个病毒DNA的HindⅢ片段,分别是A,B,C,E,G,i,J,K,L和M,克隆的DNA占全病毒DNA的89.5％。

关键词：牛鼻气管炎病毒 LA株 DNA 克隆

Perceptions of Beach Stewards and information Needs for Shorebird Stopover Sites Vary as a Function of Visitor interests: improving Stewardship Programs in Coastal Landscapes

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Natural Science 2021年第12期13卷 537-557页

作者： Joanna burger Amanda Dey Grace Dillingham Stephanie Feigin Kelly Ng Larry Niles Division of Life Sciences Ecology Evolution and Natural Resources and Pinelands Research Station Rutgers University Piscataway USA Endangered and NonGame Species Program NJ Department of Environmental Protection Trenton USA Grace Dillingham Catonsville USA Wildlife Restoration Partnerships Greenwich USA

Many studies have demonstrated that some of the activities of people can disturb nesting and foraging birds, particularly along coasts and estuaries. Some managers respond to human disturbance of sensitive species by closing beaches, but most have stewards monitor and restrict access to beaches or portions of beaches. Yet little is known about the type of visitor or their perceptions of beach stewards. This paper explores the general acceptance of beach stewards and their role in conservation of red knots (i>Calidrisi> i>canutusi> i>rufai>), other shorebirds, and horseshoe crabs (i>Limulusi> i>polyphemusi>) along the Delaware Bay (New Jersey) beaches by interviewing 279 visitors during the stopover period. While most people came to see the shorebird and horseshoe crab spectacle (60%), many came for the scenery, tranquility, and recreation. Just over half of the people interviewed said that the stewards were helpful (58%), although most of those that answered this question later said that they provided conservation value (86%), but only 40% said they relied on the stewards for information. On a Likert rating scale of 1 to 5 (the highest value), the mean rating for whether it was important for stewards to be present was 3.87 ± 0.09, and the rating for the presence of stewards who can provide information was 3.71 ± 0.11. In contrast, protection of shorebirds was rated a mean of 4.79 ± 0.04. There were signifi.a.t visitor type differences in how important stewards were, but no

关键词： Delaware Bay Conservation and Protection Migration Stopover Shorebirds Stewards Stewardship Programs

牛疱疹病毒Ⅳ型(DN-599株)DNA的分子克隆

维普期刊数据库评论

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病毒学杂志 1990年第4期4卷 423-429页

作者：童光志 Dieter burger David T Shen 中国农业科学院哈尔滨兽医研究所哈尔滨150001 美国华盛顿州立大学USDA-ARS 实验室

从感染的MDBK(牛肾)细胞中直接抽提出牛疱疹病毒iV型(BHV-4)DNA。分别经限制性内切酶EcoRⅠ,HindⅢ或BamHi消化后,用鸟枪法和选择法将病毒DNA片段克隆到质粒pBR322和pUC9的相应位点中,构建了三组病毒DNA基因库。阳性克隆是用光生物素标... 详细信息

从感染的MDBK(牛肾)细胞中直接抽提出牛疱疹病毒iV型(BHV-4)DNA。分别经限制性内切酶EcoRⅠ,HindⅢ或BamHi消化后,用鸟枪法和选择法将病毒DNA片段克隆到质粒pBR322和pUC9的相应位点中,构建了三组病毒DNA基因库。阳性克隆是用光生物素标记的病毒DNA和牛胸腺细胞DNA与各重组质粒DNA杂交而筛选的。总共克隆了病毒基因组的94％,其中用EcoRi克隆了83.4％,BamHi克隆了63.4％,Hindili克隆了45％。

关键词：牛疱疹病毒 iV型分子克隆

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通用iP媒体服务器促进专用基础架构转型

电信技术 2006年第4期 118-119页

作者： Eric burger Brooktrout技术公司

首先概述了专用媒体服务器的缺陷,然后重点阐述了通用服务器所具有的优势,最后介绍Brooktrout公司的标准化服务器平台。

关键词：专用服务器通用服务器 iP媒体服务器

Evaluation of HEBM Mechani.a. Alloying of Al<sub>2</sub>O<sub>3</sub>—356/7075 Powder Mixture

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Open Journal of Composite Materials 2012年第2期2卷 48-53页

作者： G. Govender Lilian i.a.chev H. burger A. Mulaba H. Chikwande Council for Science and industrial Research Pretoria South Africa University of Johannesburg Johannesburg South Africa

Particle reinforced aluminium alloy metal matrix composites (MMC) have proven to be one of the advanced materials capable of replacing conventional structural alloys. However, the demand for such materials has been confined to high cost appli.a.ions due to their complex processing. A prelimi.a.y mechani.a. alloying (MA) of metal powder with ce-ramic particulates by High Energy Ball Mill (HEBM) processing is a step of MMC manufacturing process. in this paper mechani.a. alloying of aluminium alloys A356 and 7075 powder with Al2O3 and SiC par-ticulates using two types of HEBM was investi.a.ed. The effect of dispersed phase strengthening mechanism on three aluminium grade alloys was evaluated by micro hardness measurement. Microstructure investi.a.ion confirms the achieved strengthening results. it was established that by measuring hardness of alloyed aluminium particles with low load reliable information on the alloying effect can be achieved.

关键词： Mechani.a. Alloying Metal Matrix Composites