VRML在教学中的应用

本文首先介绍虚拟现实定义和特点,虚拟现实和VRML的关系,VRML的语言特征。其次,阐述教学环境中的VRML应用实例。最后,说明VRML在教学方面的展望。     

基于VRML的立体网页实现

文章给出了虚拟现实技术的概述,并对VRML(即Virtual Reality Modeling Language,虚拟现实建模语言)中的基本概念进行了介绍,然后通过一个基于VRML的立体网页实现来说明用VRML建模的具体过程,并对VRML的发展和应用进行了展望。     

VRML在机械设计方面的应用

虚拟现实技术是一门涉及众多学科的新兴技术,在许多领域具有广泛的应用前景。本文概括介绍了VRML发展、定义及特点。重点介绍了VRML在机械设计方面的应用。     

VRML优化技术分析

随着VRML深入应用,VRML场景越来越复杂,如果VRML设计不当,就会影响浏览用户与VRML场景的交互与使用,通过对VRML工作原理和优化技术的分析,提出解决问题的方法.     

基于VRML的虚拟现实开发步骤初探

近年来,基于VRML的虚拟现实技术的应用一直是计算机应用领域的热点,虚拟现实技术的应用价值已经得到了广泛的认可.本文通过对基于VRML虚拟现实技术应用的现状进行分析,给出了利用VRML开发虚拟现实场景和造型的一般步骤和一般过程.以供读者借鉴.     

VRML及其在MPEG—4中的应用

VRML和MPEG-4是两个独立的标准，但它们之间却有着紧密的联系。VRML标准先于MPEG-4发布，并对MPEG-4有着重要的影响。本在简要介绍了VRML和MPEG-4后，着重介绍VRML在MPEG-4中的应用。     

基于VRML的网络虚拟制造技术的研究

虚拟现实建模语言(VRML)为实现Internet上动态的、交互的三维场景提供了标准的、合适的、平台无关的描述方法。介绍了网络虚拟制造、VRML及其与Java的结合,重点研究了VRML在网络虚拟制造中的应用,并分析了它的特点。     

基于VRML的虚拟现实研究及其应用

介绍了VRML和当前教学的现状,然后以开发"电脑DIY多媒体课件系统"为例,论述了基于VRML的虚拟现实技术在多媒体教学系统中的应用.     

VRML技术在远程教学中的应用

数字化是社会发展的必然趋势,为了适应社会发展的要求,远程教学也要加快数字化、信息化的步伐,提高远程教学的科技含量.利用虚拟现实建模语言(VRML,VirtualRealityModelingLanguage)可以建立廉价、有效的面向网络的虚拟空间,因此VRML技术在远程教学过程中大有用武之地.本文介绍了VRML的技术特点,提出了一种通过“Script“节点提高虚拟世界交互性的方法,并讨论了VRML技术在远程教学中的应用.     

虚拟现实技术在网络上的应用

介绍了虚拟现实的工作定义，给出了使虚拟现实技术能在网络上应用的两种技术—VRML和虚拟全景。重点介绍了构建网络虚拟空间的VRML标准，并结合我校新技区VRML建模工作过程论述了利用VRML实现互联网上虚拟现实的方法。同时对基于图像的虚拟全景技术作了简单的介绍。     

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