实验教学中对实验原理的再认识

化学实验是化学教学的基础,是化学教学内容的重要组成部分.实验原理是化学实验的理论基础;同时也是学生学习和掌握化学实验的关键.要提高学生的实验技能,做到规范操作,实验教学中全面的、准确认识实验原理的内涵,不能把实验原理简化为反应原理,甚至以反应原理代替实验原理,而不重视装置原理和操作原理,其意义十分重要.     

运用“三论”原理,研究文章阅读

文章阅读是一个科学的系统工程。它与人类现代科学成果很多方面都有着不同程度的联系。在信息社会的今天,文章阅读研究已进入现代化、科学化的新阶段。我们运用"三论"原理,研究文章阅读,其目的是加快阅读方法最优化发展的进程,开拓出文章阅读新天地。本文仅以我国一代伟人的实例,试论运用"三论’原理,进行文章阅读研究的必要性和可能性,从而坚定树立现代化的阅读思想,为促进提高文章阅读收获起到一定的积极作用。     

新一代软件加密狗原理及应用

简要介绍了软件加密狗的几个发展阶段，具体说明了加密狗的软、硬件原理，最后结合某型软件加密狗介绍了其在软件保护中的具体应用。     

图书馆原理辨析

图书馆存在规律:人类知识交流与传承需要决定图书馆存在,图书馆存在反映人类知识交流与传承需要;图书馆运动规律:社会知识需求与图书馆知识服务的矛盾是图书馆发展的动因,知识服务力决定知识服务关系是图书馆发展的过程。图书馆原理是图书馆存在规律和运动(发展)规律的辩证同一。     

用系统科学原理改进地理课堂教学初探

运用系统科学原理论述了整体原理，有序原理，反馈原理在认识，掌握地理概念和在地理课教学中的应用，提出了改进地理课教学的方法。     

讲授《化工原理》精馏方法的探讨

以探讨精馏的教学方法为目的,用定性分析方法,案例教学法,问题方法与对比法将精馏原理在精馏操作中的核心地位显现出来,从而增加学生理解,强化教学内容。     

用系统科学原理改进地理课堂教学初探

运用系统科学原理论述了整体原理、有序原理、反馈原理在认识、掌握地理概念和在地理课教学中的应用 ,提出了改进地理课教学的方法     

系统论与大学英语翻译教学改革

翻译教学改革是大学英语教学改革体系中的重要组成部分。从系统论的角度出发看,大学英语翻译教学是一个由多要素构成的整体系统。本文探讨了系统论的有关原理在大学英语翻译教学中运用,并提出了改进翻译教学的建议。     

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.     

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.     

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     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with