化工原理实验竞赛的实践与思考

分析了江苏师范大学化学与材料科学学院目前化工原理实验教学中存在的问题,并以参加化工原理实验竞赛为契机,对化工原理实验教学进行改革;论述了化工原理实验竞赛对培养学生创新意识和实践能力的重要性;探讨了化工原理实验竞赛对化工原理教学的促进作用.     

新时期化工原理实验教学改革和实践

本文根据化工原理实验教学的特点,从仿真实验的引入,综合实验的设置入手,总结了化工原理实验教学改革与实践经验。提出了分层次的实验教学模式和小论文的实验报告撰写形式,教改的重点是培养学生的工程思维能力,动手能力和创新能力,应用所学的化工知识分析和解决问题的能力。指出网上预约的开放式教学模式为化工原理实验教学的发展方向。     

化工原理实验教学的不足与改进

化工原理实验教学是化工原理课程的一个重要组成部分,是学生将化工原理理论与实践联系起来的必不可少的重要环节。本文对现行的传统化工原理实验教学方法中存在的一些问题进行了思考和探索,并从改进教学模式、提高实验课教学效果以及考核方式等方面提出了几点改进措施。     

开放式化工原理实验教学模式研究

为培养学生实践动手能力和创新能力,提高实验教学效果,针对传统化工原理实验教学模式存在的问题,分析了采用开放式实验教学模式的必要性。对开放式化工原理实验教学模式进行了有益探索,在化工原理实验教学方法、教学手段、教学内容、考核方式及引导学生积极参与开放实验等方面的实践经验进行了总结,并对开放式教学模式尚需完善之处提出了改进措施。     

化工原理实验仿真系统的开发

选择功能强大的Delphi开发了基于Windows操作系统的新型化工原理实验仿真软件.采用图像控件与图形函数相结合的方法方便地绘制出化工原理实验流程图,在实验仿真动画的开发过程中,使用了像素动画、异或动画、帧动画等动画技术,并较好地解决了窗体重绘问题.教学实践表明:该系统能够满足辅助化工原理实验教学的要求,具有推广应用价值.     

化工原理仿真实验在实验教学中的应用

目的:探讨化工原理实验的新方法。方法:通过多年教学实践,阐述化工原理仿真实验的特点、应用及存在的问题。结果:仿真实验可应用于化工原理实验教学。结论:仿真实验是一种有效的辅助教学手段。     

构建多层次、分层次化工原理实验教学体系初探

以广西民族大学化工原理实验教学改革为例,分析建立适应多层次和分层次化工原理实验教学平台和与之相适应的课程体系所需要解决的问题.从而提高教学质量,培养创新型人才,创建更完善的实验教学体系.     

化工原理实验改革方案初探

本文针对化工原理实验教学现状,分析了其中存在的问题,提出了改革实验教学的有效途径和方法,探讨了该课程改革在学生素质与能力培养中所起的作用。     

化工原理实验教学与考核改革探讨

本文对化工原理实验教学内容、教学方法和考核方法进行了探讨,笔者结合教学实践,对三层次的实验教学体系和开放式实验的设置、引导式实验教学模式、实验考核的综合评分制度以及取得的效果进行了说明。     

提高化工原理实验教学质量的探索与实践

化工原理课程是化工类专业紧密联系是理论性、实践性和应用性都很强的一门技术基础课。化工原理实验则是学习、掌握和运用这门课程必不可少的重要环节。在目前高科技年代,需要的人才既要有对科学理论的深刻理解,又要掌握现代科学的测试手段；既要有动手解决问题的能力,又要有严谨的工作作风与科学的工作方法。这个目标为实验教学提出了十分艰巨的任务,即如何提高实验教学质量,使学生通过实验在基础知识、实验方法和基本实验技能等方面真正有所收获。10多年来,作者在实验教学和实验室建设中做了一些探索并具体进行实施,使得教学质量有了稳步的提高,收到了一定的效果。     

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