多媒体技术应用于《模具设计与制造》教学的认识与实践

模具在现代工业生产体系中具有重要地位,模具设计和加工技术发展迅速。为提高模具教学的质量,必须充分利用各种先进教学技术。总结了模具教学的特点与难点,阐述了在模具教学中应用多媒体技术的优点,并对多媒体技术在"模具设计与制造"教学实践中所取得的经验进行了总结。     

浅谈多媒体技术对职业院校英语教学的重要作用

该文主要研究了多媒体技术对职业院校英语教学的重要作用,文章从"寓教于乐""事半功倍"和"功能强大"这三个角度论证采用多媒体技术教学的诸多优点。它能带给学生更丰富的知识,带给课堂更多的欢乐,带给教师更多的便利,让英语这门学科增添了无限魅力,让课堂有更多可能性。综上所述,多媒体技术对职业院校英语教学十分重要,如果合理使用,利远大于弊。教师在使用多媒体的时候,应该深入了解教学内容、教学目的,最大程度发挥多媒体技术的优势,和其他教学手段一起使用,才能达到最好的教学效果。     

多媒体技术在小学语文教学中应用的意义及制约因素分析

随着多媒体技术的发展和广泛应用,多媒体技术已成为教学领域中受到普遍关注的热点。运用多媒体技术教学是传统教学手段的一种扩展,弥补了传统教学的不足,多媒体技术走进小学语文教学已是必然。本文通过对多媒体技术的分析,研究多媒体技术在小学语文教学中应用的意义及制约因素,希望对我国小学语文教学改革起到一定的启示和借鉴作用。     

多媒体技术应用于人体解剖学教学的思考

多媒体技术在现代教育中日益鲁及.但要明确的是多媒体技术在教学中的地位是"辅助",教师的教学基本功仍座位于教学全过程的首位.     

计算机多媒体技术辅助教学效果总结与探讨

本文就计算机多媒体技术在教学中的效果进行了总结和探讨,客观地评价了多媒体技术对教学效果的影响。利用多媒体技术教学可以提高教学质量,对学生和教师都会有所收益,且对教学模式也会产生积极的推动作用。但不适当地使用多媒体技术,会给教学带来负面影响。     

多媒体技术在小学语文教学中的应用

多媒体技术在教育教学领域得到了广泛的应用,多媒体技术对小学语文教学的影响渐显重要。结合小学语文多媒体教学的应用实践,探讨了多媒体技术在小学语文教学中的作用、应用技巧和注意事项。小学语文教师应该积极学习研究多媒体技术,以便更好地运用多媒体技术,提高小学语文课堂教学质量。     

浅析计算机多媒体技术在劳教场所教学过程中的运用

本文分析了在劳动教养场所教学过程中运用计算机多媒体技术的优势,并对目前计算机多媒体技术运用于教学过程中产生的问题进行了剖析.在此基础之上,笔者结合自身的教学实践和经验,对合理运用计算机多媒体技术进行课堂教学提出了几点建议.     

浅析多媒体在农村初中英语教学中的优势与弊端

多媒体技术集视、听、图、文、动画于一体,改变了传统课堂的"认知型、灌输型、独奏型、封闭型、统一型"的教学模式,为素质教育带来了一种新思维.利用多媒体技术辅助英语教学,能根据现实生活,形象、直观地展示教学内容,通过声音、文字、图像等手段突出教学重点和难点.这种教学方法极大地激发了学生的学习兴趣,活跃了课堂气氛,提高了学生的理解能力,从而优化了课堂结构.但在使用多媒体教学时显露出的弊端也不容忽视.如何扬长避短,让多媒体技术真正成为农村教育教学的臂膀,是摆在所有农村教师面前的一大课题.     

多媒体教学在体育课中的应用

多媒体技术是现代化的教学手段,它对当前的教学改革有重要影响,本文阐述了多媒体技术对体育教学的重要性、优越性、可行性以及多媒体教学课件的设计与运用。     

特殊教育艺术设计教学中的多媒体技术

本文对多媒体技术在特殊教育艺术设计教学中的应用进行了介绍,重点论述了多媒体技术在特殊教育艺术设计教学中的意义和发展趋势.介绍了多媒体技术的内容,详细阐述了多媒体技术在特殊教育艺术设计教学中的特点及其优势;对多媒体技术未来的发展方向进行了全面的描述.明确指出多媒体技术将对聋人艺术设计的教学方法、教学模式、教育体制等都将产生深远的影响.     

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.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

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.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

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-