加强实验教学研究,培养学生科学素质

物理实验是物理学不可分割的组成部分,物理实验也是培养学生科学素质的重要途经.因而在物理教学中应加强实验教学的研究与指导工作,才能切实培养学生的科学素质.本文以“模拟远距离输电“实验为例,谈谈在物理教学中如何加强实验教学的研究指导工作,如何加强对学生科学素质的的培养.     

在物理实验教学中培养学生的创新能力

物理实验教学是培养学生创新思维，创新能力和科学素质的有效途径，在物理实验教学中注重培养学生的观察能力、实事求是的科学态度、开展探究性实验，对培养学生的创新能力是十分必要的。     

如何通过物理实验教学提高学生能力

物理实验教学是培养学生观察能力、操作能力、创新能力和科学素质的重要实践环节,如何在物理实验教学中培养学生的各种能力是本文主要探讨的问题。     

在实验教学中实施素质教育

实验教学是提高学生素质的重要途径。本文简述了教师在实验过程中，应从多方面着手培养学生的创新意识和能力，通过实验教学使学生养成良好的学习与生活习惯、严谨求实的工作作风，掌握实验的基本技能和科学的思维方法，提高学生观察分析事物的能力、独立工作及协作能力，从而提高学生综合素质。     

在实验教学中培养学生的科学素质

在中学物理实验教学中，发挥实验教学培养学生科学素质的功能，以顺利完成认知学习、运动技能学习和态度学习的教学任务。     

化学实验教学中学生科学素质培养方法探索

化学实验教学是培养和提高学生科学素质的重要方法和途径,在化学实验教学中应从科学态度、科学方法,科学能力以及科学意识等方面来培养提高学生学生科学素质.     

如何在物理实验教学中培养学生的科学素质

随着教材的更新，教学目标的转变，社会对人才的需求等诸多方面的发展，物理实验教学也必须与时俱进，本人认为，在实施教学过程中着重培养学生的科学素质就显得尤为重要。所谓科学素质就是人们在获得和应用科学知识过程中所表现出来的内在品质。它的核心是科学方法与科学精神。在物理实验教学中如何培养学生的科学素质是时代对物理教师提出的一个非常迫切的问题，也是物理实验教学中必须尽快解决与完善的问题。以下就是本人在多年的物理实验教学中的一些具体做法：     

加强化学实验教学,培养学生综合能力

化学实验是中学化学教学的重要内容,是最常见的有效教学方式,它对于培养学生实事求是、严肃认真的科学态度和训练科学的学习方法具有重要作用.从注重学生科学能力、科学精神的培养,以及结合实验教学内容,渗透思想道德素质教育等方面对培养学生综合素质进行探讨.     

论实验教学中的科学素质培养

科学素质是人才素质的组成部分,实验教学在科学素质的形成中起着重要的促进作用。在实验教学中进行科学素质教育,对开发学生的创造力与创新思维、提高学生的综合素质、培养新世纪的合格人才将起重要作用     

大学物理实验教学与学生科学素质的培养

大学物理实验是培养学生创新意识和实践能力的重要手段,对学生科学素质的培养具有重要作用。针对大学物理实验教学现状,提出了改革大学物理实验教学内容,将物理学史引入实验教学,开设开放实验,引入现代化教学等方法吸引学生学习兴趣,进而在实验教学中培养学生的科学思维能力,严谨求实的科学态度,将大学物理实验与学生科学素质培养有机的结合起来。     

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-