潮流新品

诺基亚翻盖手机菱形的外壳,诺基亚并没有放弃7系列手机中这怪异的造型设计。针对新兴市场研发的7070Prism,罕见地放弃了诺基亚擅长的直板造型,采用了折叠翻盖的日式手机设计。     

手机外壳的注射模具设计

论述了运用计算机辅助技术进行手机外壳零件产品的模具设计流程,给出了运用Pro/EGI-NEER及其外挂工具Pro/E+EMX+MSC软件进行手机外壳零件产品造型及其注射模的具体设计方法,并对其作了可行性分析和工艺分析.以手机外壳零件的模具设计为实例,详细介绍了应用Pro/E在设计实际中需要考虑的相关问题,并用Pro/E设计出浇注系统和冷却系统各零部件结构,再由EMX软件设计出标准模架的整个设计流程.     

RBF网络在手机概念设计评价中的应用研究

针对产品造型创新设计的特点,从对手机造型有影响的物的因素和人的因素两个方面,结合手机造型设计评价中存在的模糊性特点,提出了基于径向基神经网络的二级综合评价模型,构建了面向方案设计阶段的计算机辅助手机造型创新设计综合评价系统,并取得了很好的评价效果.实验结果表明,评价结果不仅具有较高的精度和可信度,而且更具客观性.     

手机外壳的注射模具设计

论述了运用计算机辅助技术进行手机外壳零件产品的模具设计流程,给出了运用Pro/EGINEER及其外挂工具Pro/E+EMX+MSC软件进行手机外壳零件产品造型及其注射模的具体设计方法,并对其作了可行性分析和工艺分析.以手机外壳零件的模具设计为实例,详细介绍了应用Pro/E在设计实际中需要考虑的相关问题,并用Pro/E设计出浇注系统和冷却系统各零部件结构,再由EMX软件设计出标准模架的整个设计流程.     

Pro/E在手机外壳设计中的应用

根据企业高效系列化设计产品的要求，基于Pro／E实现几何模型的参数化建模方法及其实现原理，介绍了设计手机外壳零件模型的全过程，总结出民用产品设计中应用Pro／E软件进行外观造型的一般流程，并阐明了产品设计研发的发展趋势．     

手机的虚拟概念设计

应用虚拟制造技术进行手机的虚拟样机设计，可以在计算机的虚拟世界中发现和解决手机设计过程中可能出现的问题。本文采用功能分析法，根据用户需求对现有手机进行改进设计，用LTG进行概念手机的虚拟造型设计，采用快速成型技术将虚拟样机模型实物化，提出了将虚拟概念设计与快速成型技术集成的新设计理念。     

浅析中国传统造型元素在民俗包装中的运用

本文从传统造型元素为切入点，通过深入研究中国传统造型艺术及其文化内涵，探索中国传统造型元素与民俗包装设计的契合点。中国传统造型艺术具有深厚的文化底蕴和广阔的再创造空间，是设计师取之不尽的创意源泉。探讨民俗包装设计如何与中国民族传统符号相结合，寻求能够代表中国走向世界的包装设计之路。     

虚拟油泥技术FreeForm在产品曲面造型设计中的应用

归纳了产品曲面造型、工艺品的曲面造型、角色动漫的曲面造型及其其他特殊的产品曲面造型设计,将其划分为有规律的曲面造型和无规律的曲面造型、具象的形态造型和抽象的形态造型、规整式(折线型、直线圆弧型)的曲面造型和不规整式的曲面造型.结合了实例,详述了其建模方式,对于提升设计速度、丰富表达效果(曲面造型)、优化设计流程具有快速和方便的应用价值.最后,通过了其在各个领域的应用及其详细的作图步骤,得出了该技术有利于产品的概念设计、灵活多变的设计流程,有利于快速、高效的进行批量化生产.同时,也有利于发挥设计的设计智慧、兼顾经济和社会效益,其造型易于满足消费者对于新颖和夸张的需求,并有利于明确的市场需求、良好的商品造型化及其产业化前景.     

方寸之间 大成之作

全球移动通讯翘楚摩托罗拉再创奇迹，将万众瞩目的最新杰作V3手机呈现给中国消费者，再次彰显了摩托罗拉在移动通讯科技领域的领袖地位。当高科技及多功能的开发已在全球移动通讯市场竞争中不相上下，富含艺术创新的造型设计便成为新的创新焦点。     

面向用户设计的产品造型方法

针对产品造型在产品市场竞争中的重要作用,提出了一种面向用户的产品造型设计新方法。采用试验方法研究了产品造型、色彩样本和产品形象间的关系,给出了面向用户的产品造型设计的步骤,讨论了各设计过程的理论及其应用,建立了评估产品形象的神经网络模型,给出了最后的优化组合。     

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.     

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.     

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