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A new type of dehydration unit of natural gas and its design considerations

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Progress in Natural Science:Materials International 2005年第12期15卷 1148-1152页

作者： LIU Hengwei,LIU Zhongliang,ZHANG Jian,GU Keyu and YAN Tingmin The Education Ministry Key Laboratory of Enhanced Heat Transfer & Energy Conversation,Beijing Municipal Key Laboratory of Heat Transfer and Energy Utilization,College of Environmental and Energy Engineering,Beijing University of Technology,Beijing 100022,china Shengli Engineering & research Institute,Shengli Oil Field Ltd.,SINOPEC,Dongying 257026,china Education Ministry Key Laboratory of Enhanced Heat Transfer & Energy Conversation Beijing Municipal Key Laboratory of Heat Transfer and Energy Utilization College of Environmental and Energy Engineering Beijing University of Technology Beijing 100022 China. Shengli Engineering & research Institute Shengli Oil Field Ltd. SINOPEC Dongying 257026 China

A new type of dehydration unit for natural gas is described and its basic structure and working principles are presented. The key factors affecting the performance and dehydration efficiency of the unit such as nucleation rate,droplet growth rate,the strength of the swirl,and the position at which the shock wave occurs are *** accordingly the design considerations of each component of the unit are *** investigations on the working performance of the unit justified the design considerations.

关键词： supersonic swirling flow dehydration natural gas

research Framework of B3G Mobile Communications Systems

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ZTE Communications 2006年第2期4卷 29-34页

作者： Chen Ming, You Xiaohu (National Mobile Communications research Laboratory, Southeast University, Nanjing 210096, china)

Compared with the services in 3G, services in Beyond 3G (B3G) have some distinctive characteristics such as the packet data services being the majority, more service types, larger scale of services, higher peak transmission rate, enlarged range of transmission rates, more spatial and temporal distribution differences, and more service transmission requests occurring in fast moving vehicles. In order to meet the requirements of B3G services, the B3G systems must have great improvement in network architecture, air interface scheme, radio resource allocation strategy, frequency bands, and Radio Frequency (RF) technology etc. Therefore, the research of the B3G systems should focus on the theory of generalized cellular communications networks, theory of the Multiple Input Multiple Output (MIMO) wireless transmission system, matching of radio resources to new-type air interfaces, new iterative detection and adaptive link methods, and new-type antenna and RF technologies.

关键词： MIMO IEEE USA research Framework of B3G Mobile Communications Systems

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沪宁线线路强度实测报告

同济大学学报 1959年第2期 1-16页

作者： research group on Track Stresses 同济大学线路强度研究小组

1958年大跃进中,铁路上普遍出现了运输能力和运输需要不相适应的现象。在沪宁线上,这个矛盾表现得特别突出。现在,上海铁路管理局已经采用各种方法,来满足日益增长的运输需要,其中提高行车速度是最重要的措施之一。为了确定在沪宁线上... 详细信息

1958年大跃进中,铁路上普遍出现了运输能力和运输需要不相适应的现象。在沪宁线上,这个矛盾表现得特别突出。现在,上海铁路管理局已经采用各种方法,来满足日益增长的运输需要,其中提高行车速度是最重要的措施之一。为了确定在沪宁线上进一步提高行车速度的可能性,我校于去年九月及今年一月间,在上海铁路局及船舶科学研究所的协作下,先后在横林车站进行二次线路强度的实际测定。由于这二次测定都是探索性质的,积累的资料还远不够充分齐全,因此本文仅就线路强度的测定方法及初步分析结果,作一个简单的介绍。

关键词：沪宁线数学垂直压力变化率速度范围道床系数枕木木材道床应力弹性模数整系数

Ectopic pancreaticobiliary drainage accompanied by proximal jejunal adenoma:A case report

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World Journal of Gastroenterology 2009年第35期15卷 4467-4470页

作者： Dong-Sheng Wu,Wei-Xia Chen,Xiao-Peng Wang, Department of Radiology,West china Hospital of Sichuan University,Chengdu 610041,Sichuan Province,china Author contributions:Wu DS and Wang XP collected data and carried out the research Wu DS wrote the manuscript Chen WX revised the article. Department of Radiology West China Hospital of Sichuan University Chengdu 610041 Sichuan Province China. wxchen25@***

A patient with obstructive jaundice was examined by multidetector row helical computed tomography (MDCT)and magnetic resonance imaging(MRI),and his common bile duct was observed to be leading into the distal portion of the horizontal duodenum with a pancreaticobiliary union outside the duodenal wall. A mass was also found in the proximal *** the above findings were confirmed by subsequent surgery,thus contrast-enhanced MDCT and MRI with appropriate image post-processing could provide non- invasive and accurate information regarding anatomy and lesions of the pancreaticobiliary duct and duodenal union,which may improve the feasibility of surgery and reduce postoperative complications.

关键词： Ectopic drainage Pancreaticobiliary malju-nction Computed tomography Magnetic resonanceimaging

Calculating model of mass action concentrations for Ag-Au-Cu melts

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Rare Metals 2002年第1期21卷 43-47页

作者： ZHANG Jian Metallurgy School, University of Science and Technology Beijing, Beijing 100083, china Metallurgy School University of Science and Technology Beijing 北京 100083

Based on phase diagrams and measured activities, the calculatingmodel of mass action concentrations for het- erogeneous meltsAg-Au-Cu was formulated. Calculated results agree with the improvedresults of recent research work, Showing that the model formulatedcan reflect the structural characteristics of these melts. In thismodel, without the help Of any empirical parameters, only threeequilibrium constants are used, hence it is simple, lear, andfavorable to the sim- Plification of calculation.

关键词： activity mass action concentration eutectic Solid solution

Hydrocarbon migration and accumulation along the fault intersection zone-a case study on the reef-flat systems of the No.1 slope break zone in the Tazhong area, Tarim Basin

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Petroleum Science 2010年第2期7卷 211-225页

作者： Xiang Caifu Pang Xiongqi Yang Wenjing Wang Jianzhong LiQiming Liu Luofu Li Yanqun State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum Beijing 102249 China Basin and Reservoir research Center School of Natural Resources and Information Technology China University ofPetroleum Beijing 102249 China Petrochina Tarim Oilfield Company Korla Xinjiang 841000 China

Understanding hydrocarbon migration and accumulation mechanisms is one of the key scientif ic problems that should be solved for effective hydrocarbon exploration in the superimposed basins developed in northwest china. The northwest striking No.1 slope break zone, which is a representative of superimposed basins in the Tarim Basin, can be divided into five parts due to the intersection of the northeast strike-slip faults. Controlled by the tectonic framework, the types and properties of reservoirs and the hydrocarbon compositions can also be divided into five parts from east to west. Anomalies of all the parameters were found on the fault intersection zone and weakened up-dip along the structural ridge away from it. Thus, it can be inferred that the intersection zone is the hydrocarbon charging position. This new conclusion differs greatly from the traditional viewpoint, which believes that the hydrocarbon migrates and accumulates along the whole plane of the No.1 slope break zone. The viewpoint is further supported by the evidence from the theory of main pathway systems, obvious improvement of the reservoir quality （2-3 orders of magnitude at the intersection zone） and the formation mechanisms of the fault intersection zone. Differential hydrocarbon migration and entrapment exists in and around the strike- slip faults. This is controlled by the internal structure of faults. It is concluded that the more complicated the fault structure is, the more significant the effects will be. If there is a deformation band, it will hinder the cross fault migration due to the common feature of two to four orders of magnitude reduction in permeability. Otherwise, hydrocarbons tend to accumulate in the up-dip structure under the control of buoyancy. Further research on the internal fault structure should be emphasized.

关键词： Geologic chromatographic effect fault intersection zone differential hydrocarbon migration and accumulation superimposed basin Tazhong area Tarim Basin

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二滩拱坝温度场及温度作用反馈分析

水电站设计 2003年第1期19卷 20-25,39页

作者：袁琼国家电力公司成都勘测设计研究院四川成都610072

阐述了在反馈分析中二滩拱坝库水温度场、基础温度场、坝体温度场的分布特点,并与规范建议值进行了比较。

关键词：库水温度场反馈分析温度荷载双曲拱坝

Detection of Prorocentrum donghaiense using sandwich hybridization integrated with nuclease protection assay

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Acta Oceanologica Sinica 2009年第2期28卷 121-126页

作者： CHEN Jie ZHEN Yu MI Tiezhu YU Zhigang College of Marine Life Science Ocean University of China Qingdao 266003 China College of Environmental Science and Engineering Ocean University of China Qingdao 266100 China College of Chemistry and Chemical Engineering Ocean University of China Qingdao 266100 China

Prorocentrum donghaiense is an important harmful algae bloom （HAB） causing creature in china＇s seas, and the conventional visual detection can not cope with long-term monitoring and highthroughput sampling projects. An assay for P. donghaiense with sandwich hybridization integrated with nuclease protection assay （NPA-SH） was established. Tests with mixed samples and spiked field ones confirmed its good specificity and sensitivity. The cell number of P. donghaiense correlated well with the optical density, and the regression equation is y=4× 10^- 6x＋ 0.694 9, in which x is the cell number, and y is the optical density, with r2=0.953 5. These results show that the NPA-SH method has good feasibility in the detection of P. donghaiense. Results of NPA-SH and microscopy are excellent for each sample. The NPA-SH method was a simple way in quantitative detection of P. donghaiense, and the whole process could be finished in about six hours, which provided a new approach in high-throughput sampling and long-term monitoring of P. donghaiense.

关键词： Prorocentrum donghaiense ribosomal RNA S1 enzyme sandwich hybridization integrated with nuclease protection assay (NPA-SH)

Application of Projection Pursuit Evaluation Model Based on Real-Coded Accelerating Genetic Algorithm in Evaluating Wetland Soil Quality Variations in the Sanjiang Plain, china

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Pedosphere 2003年第3期13卷 249-256页

作者： FUQIANG XIEYONGGANG WEIZIMIN SichuanUniversity Chengdu610065(China) HeilongjiangUniversity Harbin150080(China) NortheastAgriculturalUniversity Harbin150030(China)

A new technique of dimension reduction named projection pursuit is applied to model and evaluatewetland soil quality variations in the Sanjiang Plain, Helongjiang Province, china. By adopting the im-proved real-coded accelerating genetic algorithm (RAGA), the projection direction is optimized and multi-dimensional indexes are converted into low-dimensional space. Classification of wetland soils and evaluationof wetland soil quality variations are realized by pursuing optimum projection direction and projection func-tion value. Therefore, by adopting this new method, any possible human interference can be avoided andsound results can be achieved in researching quality changes and classification of wetland soils.

关键词： evaluation projection pursuit evaluation model real-coded acceleratinggenetic algorithm soil quality variations