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(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.     

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.     

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.     

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.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

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.     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

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.     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to