高层建筑结构设计中若干问题探讨

通过对实际工程的设计总结，提出关于高层建筑框架—抗震墙结构形式在结构布置，抗震墙构造、框架节点构造等方面以及墩式基础形式设计方面的一些建议     

反应谱法在桥梁抗震设计中的应用

介绍了桥梁抗震设计基本分析方法——反应谱法,分析了桥梁抗震计算中水平设计反应谱的计算方法,运用反应谱法对桥梁抗震实例进行分析,为桥梁抗震设计提供了依据。     

体液直接进样高效液相色谱法测定尿中肌酐和尿酸

报道了聚氧化乙烯交联３－氨基丙基混合功能基固定相在体液直接进样ＨＰＬＣ分析中的应用测定了人尿中的肌酐和尿酸流动相为００１ｍｏｌ／Ｌ磷酸盐缓冲液／１０％甲醇,ｐＨ４８１检测波长２３５ｎｍ测定尿酸和肌酐的线性范围分别为３ｎｇ／ｍＬ—１０μｇ／ｍＬ和２ｎｇ／ｍＬ—１０μｇ／ｍＬ,精密度分别为２０％和３０％,回收率分别为９６３％和１０２０％     

某超高层建筑结构抗震设计与分析

在结构性能目标分析的基础上,运用PKPM软件,建立了某超高层建筑结构计算模型,进而对该结构进行了抗震设计、计算与分析。通过对计算结果的分析和评价,提出了适合该超高层建筑的结构抗震措施。该抗震设计及分析方法和结构抗震措施可为类似超高层建筑的抗震设计提供参考。     

浅谈高层建筑结构抗震设计

在高层建筑设计中,抗震措施是一个重要的组成部分,本文主要分析我国目前高层建筑抗震问题,总结高层建筑抗震的方法,展望高层建筑结构抗震的趋势。     

桥梁抗震设计的原则与方法探讨

目前桥梁工程抗震的研究问题是当今热点问题,在分析桥梁结构地震破坏的主要形式基础上,阐述了桥梁抗震设计原则,最后对于桥梁抗震设计方法进行分析,重点探讨了桥梁抗震概念设计、桥梁延性抗震设计、地震响应分析及设计方法的改变以及多阶段设计方法等内容。     

高层建筑结构的抗震设计探讨

在建筑结构基于性能要求的抗震设计方案中,抗震措施是一个重要的组成部分,而且高层建筑结构的抗震问题也逐渐成为建筑行业关注的焦点。本文从我国目前高层建筑抗震问题分析入手,总结高层建筑抗震的方法。预测将来高层建筑结构抗震前景和趋势。     

高层建筑结构抗震探析

高层建筑结构的抗震问题成为建筑行业关注的焦点,本文从我国目前高层建筑抗震问题分析入手,总结高层建筑抗震的方法。预测将来高层建筑结构抗震前景和趋势。     

多层砖房设计中的抗震概念

多层砖房由于其构件组成和连接方式的内在原因 ,抗震性能较差 .但抗震分析研究和震害调查表明 ,只要在多层砖房的设计中 ,进行合理的抗震设防 ,采取适当的构造措施 ,经过必要的抗震验算 ,切实保证施工质量 ,则多层砖房仍可满足抗震的要求 .结合学习新修订的“建筑抗震设计规范” ,在分析砌体结构抗震性能的基础上 ,结合工程实践 ,对多层砌体房屋设计的抗震概念进行了论述 .     

论现代住宅建筑抗震设计

随着近些年来地震越来越频繁的在世界各地发生,现代住宅建筑的抗震性能逐渐成为广大人们群众所关注的重点,当住宅建筑的抗震性能好了,居住的居民才能住的安心、放心,因此现代住宅建筑的抗震设计也逐步成为当代建筑设计和施工的重点工作,本文便通过对现代建筑抗震设计的基本原则、抗震设计的常见问题以及提高现代建筑抗震性能的改善措施等多方面进行分析,从而详细的分析了现代住宅建筑的抗震设计。     

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