面向机械加工工艺规划的绿色制造技术探析

绿色制造技术是符合现代环保意识与资源效益的新型制造模式。在保证产品的功能、质量、成本的前提下,绿色制造工艺对机械加工工艺的优化将体现在环境保护、资源利用率等方面。本文对绿色制造技术进行细化分析,将传统机械加工工艺规划与绿色制造技术进行对比,简述绿色加工工艺技术,对绿色制造技术进行探析。     

汽车制造企业的环境管理

作为我国支柱产业之一的汽车制造企业在为社会创造丰富的物质财富的同时,又要消耗大量的资源并可能造成严重的环境污染,加强环境保护力度,推行可持续发展的生产模式,是推进我国汽车行业健康发展的重要基础。从建立、实施ISO14001环境管理体系、加强环境管理,绿色汽车制造等方面简要论述了汽车制造企业的环境管理。     

绿色产品的设计与制造

绿色产品的设计与制造是一种面向环境、资源的可持续发展模式。该文首先提出了绿色产品的概念,然后论述了绿色设计、绿色制造的主要内容,指出了绿色设计与绿色制造是制造业的发展趋势。     

基于绿色制造系统的Web Services服务开发研究

绿色制造(GM)是人类社会可持续发展在制造业的体现,同时考虑了环境和资源对经济发展和人类社会长远生存发展的作用,是面向未来的制造工艺。企业实施绿色制造,需要大量实施工具和软件产品,本文结合目前发展迅速的Internet网络,分析了Web Services服务在绿色制造系统中的地位和作用,并对Web Services服务进行了研究,使得绿色制造系统在网络上获得优良的服务成为可能。     

模具绿色制造技术应用研究

模具绿色制造是综合考虑环境影响和资源效率的现代制造模式,它要求将模具制造过程中涉及到的每一个环节和每一个要素都与对环境的影响和资源的利用紧密结合起来,实现环境污染最小和资源效率最高.通过分析模具绿色制造的定义及特点,探讨了模具绿色制造的体系,并说明了模具绿色制造工艺的应用.     

产品生命周期环境评价引入制造业中的分析研究

本文通过对传统制造业的分析提出实现可持续发展的制造模式——绿色制造模式,要实现绿色制造模式需关注两个目标：资源利用最大化和环境影响最小化。而基于产品全生命周期的环境评价是实现这两个目标的关键。结合制造业行业的特点,提出在制造业背景下的环境影响评价指标体系和产品环境属性数据库的建立,对当前制造业中绿色制造的实施进行探讨。     

基于绿色制造技术的绿色材料开发及应用

绿色制造是解决制造业污染问题的根本方法和途径,绿色材料是实施绿色生产过程的物质基础。文章分析了绿色制造研究的主要内容及其特点;论述了绿色材料的特征以及梯度功能绿色材料在绿色制造中的应用。     

节约资源型机械制造工艺技术初探

目前,我国机械加工工业中存在着大量能源和资源的浪费,对环境造成的污染日益严重,绿色制造工艺技术已经成为大势所趋,其最终目的是合理利用资源和能源以及减少对环境的污染。根据这个目标我们可以把绿色制造工艺分为三种类型：节约资源型工艺技术、降低能耗型工艺技术、环境保护型工艺技术。本文重点介绍了节约资源型工艺技术的概念,阐述了目前盛行的环保型制造工艺技术,具有深刻的学术意义。     

绿色包装的理论、标准及制造模式(续)

绿色包装是绿色制造技术的重要组成部分.介绍了绿色包装的生命周期理论、绿色包装国际标准及并行设计、清洁化生产、面向环境的CIMS技术等先进制造模式;探讨了在包装绿色化应用中应注意的问题.     

绿色包装的理论、标准及制造模式(待续)

绿色包装是绿色制造技术的重要组成部分.介绍了绿色包装的生命周期理论、绿色包装国际标准及并行设计、清洁化生产、面向环境的CIMS技术等先进制造模式;探讨了在包装绿色化应用中应注意的问题.     

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.     

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