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1.
结合实际工程,笔者对某高层建筑进行了沉降计算与分析,介绍了桩位的布置情况,同时,对现场进行了现场观测,实践证明,该工程取得了良好的经济效益。  相似文献   

2.
智能诊断系统的实现,能检测机械的故障,为了工作带来了方便,提高了工作效率,本论文从不同的层面提出机械智能诊断系统的实现与设计过程,为机械故障诊断提供了可能,提高了工作效率,降低了工作强度。  相似文献   

3.
对薄板坯纵裂进行了分析统计,从保护渣影响,钢水温度影响,拉速影响,液位波动,一冷水情况,中包车高度方面找出了板坯纵裂的影响的主要因素,制定了相应的措施,取得了较好的效果。  相似文献   

4.
白颖站长来电要我说一下我对两岸交流的感想,一时口拙,说不上来,回家仔细回想,1988年10月第一次踏上上海虹桥机场,看到到处站满了穿军装,戴大盘帽的公务人员,心中有几许的恐惧。手拿外汇券,对着满街的“酒家”,不知是否该踏入?(在台湾,“酒家”是不正当场所)。找了一家饺子馆,点了六两饺子,我的天呀!来了一大盘,足够三个人吃了,这一次在上海停留五天,随后又到上海几次,每次都感觉到即熟悉又陌生。  相似文献   

5.
初中语文课本,出现了大量的现代诗歌,由于许多语文教师对现代诗歌不熟悉,在教学上,含糊其辞,一带而过。也有些教师认为考试不考诗歌,所以遇到现代诗歌部分,只要求学生朗读一下,而不进行深入的探究,使得诗歌课堂教学枯燥无味,久而久之,学生失去了对诗歌的兴趣,甚至对现代诗歌产生了逆反心理。  相似文献   

6.
本文通过对乙酸乙酯合成实验方法进行改进,提出了新的实验操作方案,克服了原实验方法的不足,避免了实验中加入浓H2SO4的炭化现象,缩短了反应时间,减少了副产物的发生,并提高了产率。  相似文献   

7.
海南8块中位于浅海海域人工岛上,由于海上生产成本较高,因此对该块气井合理产量进行了研究,利用无阻流量法、采气指示曲线法和节点分析法,确定了气井的合理产量,从而确保了气井的稳定生产,延长了气井生产时间,增加了气井产量,取得了较好的经济效益。  相似文献   

8.
近些年我国农村工业化的发展,提高了农民的收入水平,促进了农村地区社会进步,减少了农村的社会问题,促进了城乡一体化的进程,但是也产生了一些诸如环境污染,生态破坏,产业结构不合理,人才缺乏等问题,解决农村工业化过程中的问题主要靠政府,政府要通过正确的引导,合理的规划使农村工业化走上可持续发展的道路。  相似文献   

9.
有效防治损坏,不仅提高了工程质量,同时降低了工程成本,为国家节省了费用,使沥青路面得到越来越,。泛的应用,从而加快了我国公路事业的发展。  相似文献   

10.
从1979年财政部在长春第一汽车制造厂进行会计电算化试点工作以来,我国的会计电算化工作,经历了尝试阶段、自发阶段和有组织有计划的商品化稳步发展阶段,到目前的管理型会计软件以及ERP的发展阶段。经过多年的发展,已取得了长足的进步和提高。商品化、通用化的财务及管理软件得到了广泛的应用,形成了一个初步繁荣的国产会计软件市场,普及了会计电算化知识,造就了一批既懂计算机又熟悉会计的维护和开发人才,大部分企业告别了手工帐.提高了经营和管理的效率。但是,也应当看到.由于网络的迅速发展,电子商务的迅速兴起,跨越了空间和时间的限制,直接对原有的商务模式发起猛烈的冲击,对会计电算化提出了新的要求。目前,会计电算化的实践中存在着一些问题,严重阻碍了我国会计电算化向更深层次的发展。  相似文献   

11.
磁制冷技术商品化开发的可行性探索   总被引:2,自引:0,他引:2  
裴秀英  徐来自 《制冷》2002,21(1):31-34
本文利用最新的国外资料 ,对新型的磁制冷技术商品化开发中存在的一些问题进行了探讨 ,指出磁制冷材料和热交换技术是磁制冷技术商品化开发的主要难关并提出了解决这两个难关的探索性方案。  相似文献   

12.
In decision-making under uncertainty there are two main questions that need to be evaluated: (i) What are the future consequences and associated uncertainties of an action, and (ii) what is a good (or right) decision or action. Philosophically these issues are categorized as epistemic questions (i.e. questions of knowledge) and ethical questions (i.e. questions of moral and norms). This paper discusses the second issue, and evaluates different risk management approaches for establishing good decisions, using different ethical theories as a basis. These theories include the utilitarian ethics of Bentley and Mills, and deontological ethics of Kant, Rawls and Habermas. The risk management approaches include cost–benefit analysis (CBA), minimum safety criterion, the ALARP principle and the precautionary principle.  相似文献   

13.
Several different methods of obtaining contrast for electron microscopy of magnetic specimens are reviewed. For the investigation of magnetization ripple and the structure of domain walls in magnetic films, two questions must be considered: the correct wave optical interpretation of Lorentz micrographs and the experimental attainment of coherence of the electron beam. Both questions have been sufficiently explored so that experimental results on magnetic film microstructure may be expected in the near future.  相似文献   

14.
The quantum dynamics of transport networks in the presence of noisy environments has recently received renewed attention with the discovery of long-lived coherences in different photosynthetic complexes. This experimental evidence has raised two fundamental questions: firstly, what are the mechanisms supporting long-lived coherences; and, secondly, how can we assess the possible functional role that the interplay of noise and quantum coherence might play in the seemingly optimal operation of biological systems under natural conditions? Here, we review recent results, illuminate them by means of two paradigmatic systems (the Fenna-Matthew-Olson complex and the light-harvesting complex LHII) and present new progress on both questions.  相似文献   

15.
Technology creates jobs, but it also eliminates them. These two outcomes raise two important questions: Does technology create more jobs than it destroys? Does technology create more highly skilled jobs than those that it destroys? Evidence suggests that future technologies may provide answers to these questions that are different from the answers provided by past technologies. In the past, technology primarily displaced unskilled physical labor in some sectors of the economy, while economic growth created more than enough jobs to offset those displaced by technology. In the future, however, technologies based on microelectronics threaten to displace skilled mental labor in all sectors of the economy, while continued increases in productivity may limit the ability of the economy to generate enough new jobs to offset those displaced by technology.  相似文献   

16.
从社会需求分析包装装潢和包装工程的人才培养   总被引:1,自引:0,他引:1  
指出目前包装装潢和包装工程专业培养包装专业人才的缺陷,提出了包装装潢与包装工程专业必须共同研究解决的问题  相似文献   

17.
Vision science is a truly interdisciplinary field of research, lying at the interface between psychology, computer science and neurobiology. It spans a broad range of research questions, from what visual neurons in the brain do, to the design and use of virtual reality technology. Here, I will take one well-researched area of human vision binocular depth perception, as an exemplar of the various ways in which the processes of human perception can be studied: from basic questions about the sensitivity of binocular vision to understanding how having two eyes helps us function in the natural environment.  相似文献   

18.
王玫 《福建分析测试》2001,10(3):1477-1480
污染源废气中的氟化物分为气氟和尘氟.本文详细介绍了离子选择电极法测定气氟和尘氟的分析方法以及在测试中应注意的问题。  相似文献   

19.
Key developments in computational electromagnetics are proposed. Historical highlights are summarized concentrating on the two main approaches of differential and integral methods. This is seen as timely as a retrospective analysis is needed to minimize duplication and to help settle questions of attribution.  相似文献   

20.
对中央空调系统的两种控制方式——压差变流量控制和温差变流量控制的原理和存在问题进行分析。考虑土壤源热泵水系统的特点,说明土壤源热泵两个水系统控制适合采用温差控制。通过一个工程实例说明土壤源热泵VWV(variable water volume)控制的设计过程。  相似文献   

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