在化学实验中培养学生的能力

从三个方面介绍培养学生的能力, 即围绕“实验目的”组织教学；在教学中创造宽松环境；在时间、内容、考核上给学生一定的自由度；在实验内容方面，增加设计性实验强化学生能力。     

完善《进出口价格核算综合实验》的思考

《进出口价格核算综合实验》是《国际贸易实务》课程中一个重要的内容，它对于增强学生的实践能力，提高学生进出口价格核算的技能具有现实意义。然而，在实验过程中学生反映出了所面临的一些难题，如：感觉比较盲目、没有头绪；有些数据查询困难；实验指导书不够详细；时间紧；计算量大等。本文在分析这些难题的基础上，从加强理论教学与实践教学的联系；完善实验指导书的内容；加强实验前的准备工作；加强对实验过程的指导；重视实验的总结工作；购置相关的软件等方面提出了完善该实验项目的一些思考。     

有机化学实验教学改革与探索

在有机化学实验教学中，精心选择实验教学内容、优化结构，强化基本操作技能；增加绿色化学实验内容，加强环保教育；增加设计型实验，提高学生的综合实验能力；开展微型化的有机化学实验，减少实验污染；利用现代化教学手段，提高实验教学效果。     

创新推进近代物理综合性实验项目建设

结合近代物理实验课程的教学实践,总结了建设综合性实验项目的实验模式,包括综合性实验项目性质的界定、整合优化实验项目和实验内容及建立全程的多元化考核办法等重要方面。实践表明,建设综合性实验项目,能够培养学生的综合分析能力、实验动手能力、数据处理以及查阅资料的能力。     

无机化学实验中自主设计实验的教学研究

本文旨在探讨在大一无机化学实验课中开展自主设计实验的教学方法。以基础实验为基石,根据学生实验的内容和时间作出合理的安排,分阶段分层次开展学生自主设计实验,让学生可以自主决定实验内容或在教师指导下选择实验内容进行研究与探索,创设学生自己动脑、动嘴、动手的教学环境,激发学生探索的欲望和独立思考的积极性。教学实践表明在大学一年级的无机化学实验教学中开展适量的学生自主设计实验有利于学生的动手能力、独立思考能力以及科学研究方法的培养。     

医用物理学实验教学改革的一些设想

;医用物理学的实验课程,可以促进学生对物理原理在医学上应用的理解,提高学生的动手能力和解决问题的能力,但目前的物理实验课程,存在医学特色不突出、学生对实验共趣不浓厚、教学设计未能激发学生学习兴趣等一系列问题,应该从实验内容、教学方法、指导思想、教学手段等几方面着手,进行改革.     

有机化学实验教学改革和学生创新能力培养初探

有机化学实验课是高等教育培养化学相关专业学生科学精神和创新实践能力的重要课程之一。为了更好地培养学生创新能力和提高学生实验能力,对实验技能培训、实验内容选择、科研资源利用、教学方法和教学评价等相关方面的改革进行了初步的探讨,并在实践中获得了较好的教学效果。     

在中学化学教学中培养学生观察能力和实验能力的途径和方法

教育的主要目的是培养有创新意识，创新精神和创新能力的人，化学教学作为教育的一个方面应十分重视培养和发展学生的能力，本文钭对在中学化学教学中培养学生的观察能力和实验能力的途径和方法进行论述，培养学生的观察能力，应当注意做到：明确观察目的，制订周密的观察计划；培养严肃的观察态度；引导学生反把观察与结合起来，培养学生的实验能力，应当做到：积极创造条件，让学生参与实验，必须强调教师科学，规范的示范性；必须强调指导模仿练习，培养独立操作能力，强调单项与综合练习并举，集中与分散练习结合，利用迁移，促进实验技能的形成；尽量做到由学生设计实验方案，完成实验习题和作业；必须探索性实验与创造性思维的结合。     

信号与系统实验教学探索

本文从实验教学和理论教学的关系、实验方法、实验内容等三个方面探讨了信号与系统实验课的改革,以帮助学生加深对理论的理解和掌握,培养学生动手能力和创新精神。     

适应新形式下动物微生物实验体系的建设

动物微生物实验是动物科学专业重要的组成部分,在训练学生的基本技能、培养学生的知识综合应用能力及创新能力方面起着重要作用。在新形式下,动物微生物学实验体系的建设包括实验内容体系、考核体系和教学体系的建设。在试验内容体系中应包括基础实验、综合性实验和设计创新类实验;在考核体系中应包括实验报告的撰写、实验成绩评定标准和考核方法等内容;在教学体系中应包括实验平台的建设、师资队伍建设和教学方法等内容。     

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