流化床非平衡态热力学分析模型

用非平衡态热力学的分析方法分析了流化床系统的熵、熵产生、熵流,讨论了流化床系统的热力学分支和耗散结构分支,论证了流化床系统的能量最小原则,使热力学第二定律同流化床理论研究有机地相结合。建立了鼓泡流化床的数学模型和过渡态判据。热力学第二定律的引入,使热力学和流体动力学与流化床理论研究、耗散结构分支与系统运动形式的多样性、系统总体稳定与局部非稳定在理论描述上相统一。     

熵,巨势与开放的近平衡系统热力学第二定律的两种表…

从分析局域平衡理论框架内封闭热力学系统之熵产生与特性函数变率的关系入手，阐明了非平衡态的热力学特征，即非负耗散强度及非平衡线性区向最小耗散态演化的趋势，实际上是分别体现在热力学势的一阶及二阶变率层次上的状态演化方向。同时，提出了以巨势为基础的开放非平衡系热力学第二定律的表述形式，论证了在近平衡区与最小熵产生原理的等价关系。     

非平衡非耗散热力学及热力学分类新系统--化学热力学课程内容的重大变革

从19世纪以来,化学热力学课程内容几乎没有实质性的变化.Onsager和Prigogine发展了热力学并分别在1968和1977年荣获Nobel化学奖.然而,崇尚经典甚至不承认现代热力学的情况依然存在.这在2l世纪科学领域中实为罕见.在1970年前后出现的激活低压人造金刚石新工艺中,石墨腐蚀和金刚石生长可以同时发生的现象,严重困惑了经典热力学.最终导致了非平衡非耗散热力学新领域和全新热力学分类系统的诞生,也使化学热力学真正成为一个自洽的完整学科,全面进入现代热力学的历史发展新阶段.     

^19F＋57V耗散反应激发函数的谱密度SDM分析

本文阐述了用谱密度方法研究耗散反应激发函数振荡结构能量相关的基本原理，并用ＤＭ方法分析了＾１９Ｆ＋＾５１Ｖ耗散反应激发函数的能量相关特性，提取了相应的能量相干宽度，得到了能量自关联函数为Ｌｏｒｅｎｔｚ型的结果。     

非理想性对BZ反应体系热力学性质的影响

作者在对非理想BZ反应体系动力学行为研究的基础上，进一步研究了非理想性对BZ反应体系热力学性质的影响．通过非平衡态热力学理论分析，并根据实测浓度振荡变化时序数据进行计算，结果表明：非理想BZ反应体系中出现的双峰振荡较单峰振荡具有更大的熵产生周期平均值，表明维持多环极限环的时间自组织行为比单环极限环需要更大的熵流，而且惰性电解质的加入，使这种差别进一步扩大．     

基于耗散结构理论的国家创新体系国际化研究

科技资源全球化配置与重组,跨国公司R&D国际化程度越来越高,一个有效盍的国家创新体系能够支持企业的国际竞争中获胜。国家创新体系成为企业获取创新资源的有效组织形式。为使国家创新体系良好动作,形成耗散结构是其理想状态。国家创新体系的开放性、远离平衡态和系统内各要素的非线性作用,表明国家创新体系具备形成耗散结构的基本条件。在国家创新体系形成耗散结构的过程中,需要管理好表征系统有序的熵,减少熵产生和通过R&D国际化引进负熵流可以使国家创新体系向更加有序的方向发展。     

熵、巨势与开放的近平衡系统热力学第二定律的两种表现形式

从分析局域平衡理论框架内封闭热力学系统之熵产生与特性函数变率的关系入手，阐明了非平衡态的热力学特征，即非负耗散强度及非平衡线性区向最小耗散态演化的趋势，实际上是分别体现在热力学势的一阶及二阶变率层次上的状态演化方向。同时，提出了以巨势为基础的开放非平衡系热力学第二定律的表述形式，论证了在近平衡区与最小熵产生原理的等价关系。     

浅谈耗散结构理论及其对自然科学与哲学的影响

在不可逆过程热力学的基础上简要介绍了普里高津耗散结构理论，并就这一划时代的自然科学理论对当代哲学的深刻影响进行了讨论。     

基于热力学的混凝土塑性和粘塑性本构模型研究

建立了具有实用意义的基于热力学能量耗散函数的混凝土率无关和率相关塑性模型.基于热力学原理,构造了混凝土在主应力空间中的能量耗散函数,并根据此函数推导出了耗散应力空间和真实应力空间中的混凝土模型.推导过程中不需引入其他假定,所得模型能自动满足热力学定理.拟合参数后,计算了多种受力状态下混凝土试件和构件的静动态响应.计算结果符合试验结果,验证了模型的正确性和实用性.     

运动训练“高原现象”的熵理论及耗散结构理论阐释

基于热力学理论中的熵理论以及耗散结构理论,分析了运动训练过程“高原现象”的熵与耗散结构理论特征及产生机理,阐释了运用熵理论与耗散结构理论研究“高原现象”的实质,依此破解运动训练“高原现象”,为提高运动员竞技能力提供理论依据.     

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