离散数学课程教学问题分析与对策研究

文章首先分析了在离散数学课程教学中易出现的问题;然后从教学方法改革,激发学生的学习兴趣;建立新的教学模式,注入实验教学环节;加强网络课程体系建设,充分利用网络辅助教学平台三个方面,探讨了加强离散数学课程建设,提高离散数学教学水平和质量问题。     

《离散数学》课程建设与教学改革的探索实践

从实际教学出发，在阐述离散数学重要性的基础上，加强了课程体系建设．对离散数学教学内容的选择和教学方法的改革进行了研究和探讨。     

基于实践教学的《离散数学》课程改革

针对《离散数学》教学中只注重理论、忽略实践教学这一问题,对国内外《离散数学》教学内容进行比较分析,指出《离散数学》实践教学对提高学生逻辑思维能力、动手能力、创新能力和学习兴趣等有重要作用,提出《离散数学》教学改革中的实践教学具体实施方案。     

基于任务驱动的离散数学实验教学研究

离散数学是计算机专业的一门必修课程,在学生综合素质培养和逻辑思维能力培养方面发挥重要作用。本文分析离散数学的教学现状,阐述在离散数学教学中增加实验教学的必要性。根据离散数学的内容体系,利用任务驱动教学法,建立和完善离散数学课程实验教学环节。     

信息与计算科学专业离散数学课程教学的探讨与研究

本文首先分析了离散数学的教学现状,然后从注重教学内容的有机整合,加强实践教学两方面论述了我们应采取的措施。     

离散数学多媒体教学应与传统教法优势互补

针对离散数学多媒体教学面临的一些问题,结合教学实践,分析了多媒体教学与传统教学的优缺点,认为离散数学的多媒体教学应紧扣离散数学的特点,通过结合传统教法来加以完善,并从离散数学多媒体课件的制作与教法两个方面来进行具体阐述.     

应用型本科专业《离散数学》教学方案探讨

《离散数学》是计算机科学中基础理论的核心课程,针对应用型本科专业人才培养模式,分析了《离散数学》的知识模块、课程定位、教学目标、内容组织,研究了《离散数学》教学实施方案,实践证明该方案是可行的。     

离散数学课程的教学与实践

离散数学是计算机类专业中一门重要的专业基础课程。根据计算科学专业人才培养和社会需求,结合离散数学课程的特点,作者结合自己的教学实践,对离散数学教学的现状做了全面的分析,并从教学内容、教学方法、实验教学等方面提出在专业教学中改进的对策和措施,从而提高离散数学的教学效果。     

离散数学中图论部分教学方法的研究

离散数学是计算机专业一门非常重要的学科,它的思想和方法渗透到计算机应用的各个领域,离散数学课程概念多,定理多,抽象度高,教师难教,学生难学的现象普遍存在,教学质量很难保证,所以如何提高离散数学教学水平和质量,成为教师在教学实践中不断探索的课题。而图论又是离散数学的一个重要分支,所以图论教学效果的提高对离散数学是至关重要的。本文我们对离散数学中图论的教学内容、教学方法、手段进行了探讨。     

离散数学对编程的重要性

离散数学作为研究离散量的结构及其相关的教学学科,成为现代教学的一个重要分支。通过对离散数学的学习,可以掌握处理离散结构的工具和方法,并且在各学科领域,主要在计算机科学与技术领域有着广泛的应用。并且离散数学是计算机专业的专业课程必不可缺的先行课程,学好离散数学对于将来使用计算机进行编程具有很大的帮助.     

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