电力工作者的新使命：研究,应用电力史和电力哲学

以电力史和电力哲学作为研究课题，主要论述其研究对象，内容，目的，方法及其意义，并对如何研究提出了自己的设想。     

电力市场营销特点及组合策略分析

在我国经济体制改革的进程中，随着宏观经济调控和产业结构调整，特别是国家采取优先发展能源等基础产业政策的推动下，电力事业取得了长足的发展。电力市场由过去的卖方市场一跃变为买方市场，经营运作模式也由分配电力和限制用电的生产经营型转变为搞好需求侧管理和引导客户用电的服务经营型。电力市场营销是电力企业经营的核心，在市场经济条件下，电力市场营销处于电力市场最前沿，是电力工业市场化改革的必然要求。电力企业的经营效益取决于市场的占有率，而市场占有率无不与企业的营销组合策略密切相关。     

电力发展与高耗能的规范

我国去年出现了多年不见的严重电力短缺，其重要原因之一是发展预测背离经济社会和电力发展的规律。本文根据国外电力发展的情况和我国未来经济发展与电力消费增长的展望，提出规范高耗能企业的发展，使电力发展有序进行。     

电力市场化建设探讨

对国内外电力市场化建设的发展历程进行了分析,对电力市场化建设的缘由和途径进行了探讨,对电力市场化建设的复杂性进行了研讨。     

论电力调度与营销的关系

电力市场营销是电力企业核心业务,应适应市场经济的要求,电力企业的生产经营活动应服从和服务于电力营销的需要。电力调度作为电力企业的生产指挥机构,一切活动也应服务于电力营销,本文对电力调度与营销的关系进行了论述。     

浅析广州市的电力消费

本文首先分析了1950年以来广州市电力消费的几个特点:①电力消费量增长快;②电力消费结构发生变化;③电力缺口大.然后采用三种方法对广州市未来的电力消费量作了定量预测,并提出一些具体措施.认为既要多渠道、多途径地增加广州市的电力供给,又要尽可能节约电力,改革电力的供给体制.     

从英国电力私有化看我国的电力改革

英国是最早实施电力改革的国家，十几年的实践和发展一直为世界所瞩目。文中通过回顾英国电力改革发展过程，得出几点启示，对我国电力改革事业可引起积极的参考和借鉴作用。     

电力营销稽查对提高电力营销效率探讨

针对目前我国的电力营销存在的部分制约营销效率的局限性问题进行探讨。通过工作实践经验可以得出,制约营销效率的主要影响因素在于缺乏科学合理的营销稽查工作。从健全电力营销稽查工作以及电力营销稽查对提高电力营销效率的现实意义入手,探讨提高电力企业营销效益的有效措施。     

电力电子技术及其展望

电力电子技术是一门迅速发展的交叉于电力、电子和控制之间边缘科学技术。本文综述电力电子器件和电力电子应用，并展望电力电子技术的发展趋势。以晶闸管及其应用为代表，形成第一代电力电子技术，以自关断电力电子器件及其应用为代表的第二代电力电子技术正在不断发展，逐步取代晶闸管类的电力电子变换装置；以智能化功率集成电路为代表的第三代电力电子技术的问世和进一步发展，预示着可能引起一次新的电子革命。     

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