高中化学教学中研究性学习方法的研究

阐述了研究性学习的概念特征及高中化学教学中开展研究性学习的意义,主要介绍研究性学习在课堂教学中的教学方法和高中化学研究性学习的实践应用,最后提出进行研究性学习过程中应注意的几个问题。从理论和实践相结合的基础上,以化学研究性学习为例,对高中化学教学中开展研究性学习活动具体的操作方法进行一些有益的尝试与探索,并提出高中化学研究性学习过程中应注意的问题。     

“研究性学习”的历史沿革概述

本文阐述了研究性学习的概念、概述了研究性学习理论建立于人类早期教育实践和教育思想,研究性学习近代和当代发展脉络,我国开展研究性学习课程的历史等。     

论信息化环境下的研究性学习

研究性学习重在培养学生的实践能力与创新能力,现代信息技术的发展,为研究性学习提供了良好的实施空间.文章探讨了研究性学习的本质和特征,分析了信息化环境下研究性学习的组成要素及研究性学习过程中的教师与学生,并进一步对现代信息化环境下开展研究性学习的策略进行了探讨.     

实施研究性学习的有效性方法初探

本文阐述了研究性学习的基本含义和性质,分析了研究性学习的基本特征以及其优越性,指出研究性学习在教学和学习过程中的科学合理运用的重要性,提倡结合教学和学习实际,不断创新方法和手段,建立健全评价体系,有效性地实施研究性学习。     

高校电子阅览室研究性学习的实践

介绍了国内外研究性学习的发展情况,分析了大学研究性学习的内涵和外延以及高校电子阅览室开展研究性学习的优势,在此基础上提出了高校电子阅览室进行研究性学习实践的具体措施。     

实施研究性学习的有效性方法初探

本文阐述了研究性学习的基本含义和性质,分析了研究性学习的基本特征以及其优越性,指出研究性学习在教学和学习过程中的科学合理运用的重要性,提倡结合教学和学习实际,不断创新方法和手段,建立健全评价体系,有效性地实施研究性学习.     

浅谈中学图书馆在研究性学习课程中的功能

介绍了研究性学习的概念及研究性学习课程的特点,阐述了中学图书馆在研究性学习中的作用和地位,指出要适应素质教育和研究性学习的需要,中学图书馆必须探索工作新思路,加强管理队伍建设,构建馆藏文献资源体系。     

基于手机报辅助的研究性学习策略分析

研究性学习重在培养学生科学研究的思维方式和研究方法,本文针对研究性学习的定义和特点,并结合手机报的移动学习功能,分析了手机报辅助研究性学习的策略,以达到促进学生研究性学习的效果。     

基于研究性学习的教学改革

研究性学习是近几年中国教育改革中的重要内容,它集中体现了现代教育理念,反映和回应了时代对教育的需求,有着十分重要的社会影响。本文介绍了研究性学习的含义、研究性学习的特点以及研究性学习在大学教育中的重要性和可行性。     

研究性学习在中学数学教学中的体现与应用探究

本文针对研究性学习在中学数学教学中的体现与应用等问题,概述了研究性学习的概念和特点,分析了其在中学数学教学中的体现,并从开展数学研究性学习的途径和应该遵循的原则两个方面,阐述了研究性学习在中学数学教学中的应用。     

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.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

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-