论区域持续发展的协调问题

区域ＰＲＥＤ系统的协调是实施区域的持续发展的战略的核心问题，本文基于优化控制的思想，从时间、空间和功能三个方面对协调的内涵加以阐述，在此基础上，指出区域持续发展的总目标是实现区域ＰＲＥＤ系统的公平、发展和生态持续性，最后提出了生态、经济、社会三个子系统相应的发展目标。     

绿洲PRED系统的结构及优化

剖析了绿洲ＰＲＥＤ系统的组成及其基本反馈结构，提出了以绿洲区域人口承载力为系统终端窗口的绿洲ＰＲＥＤ总体协调模型的简化建模过程及相应的数学模型，探讨了绿洲ＰＲＥＤ系统的一般协调模式，给出了以水土资源开发利用为中心的总体协调模式，并以甘肃省武威地区绿洲为例进行了研究。     

以充气背心为主体的新型双泵复苏术血流动力学研究(2)

以充气背心为主体的新型双泵复苏术（ＶＤＶＥＳＴ－ＣＰＲ）能改善冠脉有效灌注压（ＣＰＰ），观测其复苏效果随时间变化．以ＩＢＭＰＣ３８６为控制主机的多功能复苏装置，在８条犬心室颤动３０ｓ后随机地实施充气背心复苏术（ＶＥＳＴ－ＣＰＲ）及ＶＤＶＥＳＴ－ＣＰＲ３０ｍｉｎ，每隔５ｍｉｎ观测一次，自身对照设计．结果：整个实验中，ＶＤＶＥＳＴ－ＣＰＲ较ＶＥＳＴ－ＣＰＲ显著升高主动脉和右房的舒张压（Ｐ＜０．０１）．主动脉舒张压升高程度较右房舒张压大，ＣＰＰ显著性升高（Ｐ＜０．０１）．虽然随复苏时间延长，复苏效果有所下降，但是ＶＤＶＥＳＴ－ＣＰＲ始终优于ＶＥＳＴ－ＣＰＲ．ＶＤＶＥＳＴ－ＣＰＲ３０ｍｉｎ的复苏中，血流动力学效果优于ＶＥＳＴ－ＣＰＲ．     

PROTEL TRAXEDIT PCB 文件中字符串图元的产生原理

分析了ＰＲＯＴＥＬＴＲＡＸＥＤＩＴ的ＰＣＢ文件中字符串图元的产生原理，这为把ＰＣＢ文件转换为图像文件、其它ＣＡＤ文件或开发ＰＲＯＴＥＬＴＲＡＸＥＤＩＴ打下了基础．     

PRE—ISDN的NOVELL路由器软件设计的结构原理与实现

ＰＲＥ－ＩＳＤＥ比综合业务数字网在已建成的电信局应用时的成本要低得多。探讨了ＮＯＶＥＬＬ网ＮｅｗＷａｒｅ经ＰＲＥ－ＩＳＤＮ互连所需路由器软件设计的有关问题。     

用EMME／2软件来估计O—D矩阵的实用方法

本研究的目的是用精确的数据来获得更准确的Ｏ－Ｄ矩阵。这些数据诸职ＴＣＳ Ｏ－Ｄ矩阵,观测的路段交通量和通过ＥＭＭＥ／２获得的快速公共汽车Ｏ－Ｄ矩阵,首先,建立每个收费站的一个有效区域,每个收费站的出入量被分配到有效区域中的小区,这一分配好的Ｏ－Ｄ矩阵再被分配给出由所有收费站和它们的有效区域组成的网络,其次,我们校正区域Ｏ－Ｄ矩阵,排除ＴＣＳ Ｏ－Ｄ矩阵,目的是反映观测到的交通量,而将快速公共汽车和     

中国西北绿洲生态农业发展举措

在分析中国西北绿洲特点的基础上,指出要使西北绿洲生态农业持续,高效发展,必须发挥绿洲资源优势,协调好绿洲ＰＲＥＤ系统,优化绿洲生态农业,并就此提出了有关具体措施。     

区域持续发展与宁夏中部地区开发

阐述了区域持续发展的研究核心是区域ＰＲＥＤ，并从论述宁夏中部地区生态脆弱的环境特征，人口资源环境矛盾突出的特征和开发前景广阔人地关系矛盾更加突出等方面，论证了宁夏中部地区开发必须以区域持续发展理论为指导，进行深和地研究。     

矿山经营状况评价的偏好排序

对矿山经营状况的综合评价排序问题进行了研究，引入了高斯偏好函数和ＰＲＯＭＥＴＨＥＥ排序模型。该模型适合于采矿系统中各类多属性决策（ＭＡＤＭ）问题     

人口压力与绿洲发展分析研究

绿洲人口压力是绿洲人口、社会、经济、环境等因素综合作用的结果．从绿洲ＰＲＥＤ系统各个子系统的耦合关系出发,提出了绿洲人口压力评价指标体系及评估方法,并结合实例分析了人口压力对绿洲发展的影响．     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that