输煤控制系统硬件结构与上位机监控软件设计     

应力  张琳 《上海海事大学学报》2001,22(1):4-7

根据工况将不同的设备组合成不同的工作流程，以集散控制技术为基础，应用PLC网络实现了对输煤设备的现场控制、电控室控制和中控室控制。并以FIX软件为工具，通过定义PLC的I/O端口映射表方法，以时间、事件、故障为触发手段，设计了实时监控软件，并实现了输煤量与数据库系统的数据接口。  相似文献   

浅谈巡视在工程监理中的作用     

朱礼俊  黄雄 《长江工程职业技术学院学报》2005,22(1):26-27

从质量、进度和投资三方面论述了监理巡视的作用和重要性.  相似文献   

Inclusive Learning: the Report of the Committee of Enquiry into the postschool education of those with learning difficulties and/or disabilities,in England, 1996     

John Tomlinson 《欧洲特需教育杂志》2013,28(3):184-196

ABSTRACT

The Report, Inclusive Learning (1996), is the result of a three‐year enquiry into the educational needs of and provision for adults with disabilities and/or learning difficulties in England. It arose from the requirement of an Act of Parliament, in 1992, that the new national funding council for further education should ‘have regard’ for such students in all its work of funding, development and evaluation. The Committee commissioned some fundamental research into the nature and extent of provision, the actual and potential demand for further education and the current requirements of law, and also reviewed existing academic research (chiefly in English‐speaking countries). It took extensive evidence in many modes and, in particular, created a series of workshops in which the students and their advocates could speak for themselves. The outcome was the main Report and summary, together with six supplementary publications. The core of the Report is the notion of ‘inclusive learning’, which places the responsibility for providing appropriate education with the teachers, the managers and the system (ultimately, with society), rather than problematizing the student as one with a deficit. A good education system is not merely about offering access to what is available, but also the making of what needs to be available accessible: the moulding of opportunity. Thus the Report concentrates on a theory of learning and its educational consequences. It represents another step towards embracing students with learning difficulties and/or disabilities unequivocally within the general approach to learning appropriate for all students. This article summarizes the main lines of analysis and argument in the Report and its framework of recommendations to the Further Education Funding Council, teachers, managers, voluntary organizations and to the government.  相似文献   

影响陕南地区普通话水平测试成绩的相关因素     

刘晓亮  马晓琴 《陕西教育学院学报》2004,20(4):92-95

本文运用数理统计法,分析数据中所包含的信息,挖掘出影响普通话水平测试成绩的因素.  相似文献   

平直界面一维晶体生长问题的相似解     

刘竞 《石家庄职业技术学院学报》2005,17(6):1-3

对于平直界面下由过冷边界开始的熔体的一维凝固过程，考虑液态中远场温度高于凝固温度，而底板温度低于凝固温度，利用相似性解法分别求解固液态温度，分析其结果，说明由低温区长入高温区的界面总是稳定的，从而更加完善了一维晶体生长理论．  相似文献   

电力变压器离线局部放电测量试验中的容升现象分析     

王烜  曹晓珑  李云阁  刘英 《上海大学学报(英文版)》2007,11(5):490-495

Partial discharge test on a transformer is carried out according to the items in IEC 60.During the test,unproved measuring system is calibrated by proved system at a voltage no less than 50% the rated testing voltage.The result is then extrapolated linearly,leading to an error related to the distribution of stray capacitance,which varies with the testing frequency,especially to large transformers.In this paper a factor,named the capacitive rise fact,is introduced to assess the rise.The factor can be adjusted to some extent by changing the reactance that is connected to the LV side of the testing circuit to lower the capacity of the power source.However,the factor changes when the voltage divider on the high voltage side is removed after the voltage ratio has been calculated,and a great error is resulted under unfavorable conditions.  相似文献   

Non-Rigid Medical Image Registration with Joint Histogram Estimation Based on Mutual Information   总被引：1，自引：0，他引：1  

陆雪松  张素  苏和  陈亚珠 《天津大学学报(英文版)》2007,13(6):452-455

A mutual information-based non-rigid medical image registration algorithm is presented. An approximate function of Hanning windowed sinc is used as kernel function of partial volume (PV) interpolation to estimate the joint histogram, which is the key to calculating the mutual information. And a new method is proposed to compute the gradient of mutual information with respect to the model parameters. The transformation of object is modeled by a free-form deformation (FFD) based on B-splines. The experiments on 3D synthetic and real image data show that the algorithm can converge at the global optimum and restrain the emergency of local extreme.  相似文献   

用道耳顿分压定律分析大气压强公式的误差     

史会  王保玉  王东民 《新乡师范高等专科学校学报》2006,20(5):30-31

对大气压强公式产生误差的原因进行了分析,指出,由于大气中分子质量不同引起的计算误差是产生误差的主要原因,由此提出公式修正,并给出大气压强公式所适应的范围。  相似文献   

一类高阶时滞偏微分方程的解的渐近性     

赵修忠 《衡阳师范学院学报》2007,28(3):21-24

研究了一类高阶时滞偏微分方程的解的渐近性,得到了其解的一些渐近性质,其结果推广了有关文献。  相似文献   

洗涤次数与洗涤剂用量之间的关系   总被引：3，自引：0，他引：3  

文耀智 《衡阳师范学院学报》2001,22(3):37-38

通过求解偏微分方程推导出洗涤次数与洗涤剂用量之间的关系，并根据实际操作，给出可供实验操作人员借鉴的可行操作方案。  相似文献