气体灭火自动控制装置的设计原理

通过科研成果转化的气体灭火系统目前己成为我所科技产业中的主导产品。其控制装置是其中关键配套设备。本文就其开发设计中的设计思想、技术原理、技术设计特色等作一阐述     

吉林中百商厦特大火灾引发建筑防火设计的思考

通过对建筑防火设计不合理情况分析 ,提出了加强防火分区分隔 ,严密疏散楼梯间设置 ,建筑装修应保护通风、采光设施等问题的建筑防火设计思考。     

高层建筑火灾外部进攻与救援系统的设想

高层建筑火灾是当前扑救难度较大的火灾类型之一 ,本文对该类型火灾扑救中存在的主要制约因素进行了分析与探讨 ,在立足当前现有各种成熟技术条件的基础上 ,提出了开展外部进攻与救援系统的设想及解决方案。     

浅谈由建筑施工引发的结构设计问题

介绍了建筑施工中引起的几个质量问题，针对出现的问题从结构设计方面提出了修改意见和加强措施。     

蓝山会所

错落有致的几何形窗口的墙面,可以看到窗外斑驳的树影正和窗内淡蓝色玻璃长台上的枯枝相呼应。阳光一天的挪移都能透过几何窗在室内留下足迹。同时窗外的树枝、风、云……大自然的一切身影都被定格成立体而丰富的"壁画",内外空间被无声地融合在一起。相互渗透,瞬息万变除了自然的丰富变化,透过空间设计手法,材料的丰富性使得室内风格更加立体而融洽。清水混凝土,钢板的天花,收纳管线的钢梁和烧毛面的花岗岩地面,营造了一种素面朝天的影像。中度抛光的石材柱子,透明的塑料椅子,淡绿色玻璃发光的长台,不但增强了光线的明暗效果,而且渗透着不张扬的现代感。材料的多样性增添了空间的层次感,光影变化在不同材料上反应出来的不同效果使空间有了更强     

两种煤泥锅炉的技术技术经济分析

以山东某热电厂采用的鼓泡床和循环床煤泥锅炉的运行实践，分析了两种煤泥发电技术的经济差别，特别是鼓泡炉的埋管经常磨损引起的巨大损失以及需要外购石英砂床料带来的巨大费用，表明采用无埋管循环流化床煤泥锅炉则可减少损失134．8万元／年。     

Real-Time Quality Evaluation of Wire Bonding Using Input Impedance

Input impedance characterizes the dynamic property of a linear system. A few existing technologies thus exploit input electrical impedance of wire bonders as the signature to monitor ultrasonic wire bonding processes. However, the waveforms of "impedance" in these technologies are evaluated only approximately. To overcome the shortcoming, we propose a method to detect the true waveforms of both the real and imaginary part of the input impedance. In the method, the voltage and current at the input port of a wire bonder are probed and processed to obtain impedance via Hilbert Transform. Because dynamics of a bonding process represented by these waveforms is fully responsible for the resulted bonding quality, a quality evaluation system based on pattern recognition of these waveforms is further proposed. An artificial neural network using back propagation as training scheme learns from a set of training data to correlate a few features of the impedance waveforms with the bonding strength of the corresponding bond identified by shearing tests. Through a set of verification data, the built system is validated to be capable of evaluating bonding quality right after a bonding process. The proposed method is not only in situ and real-time, but also sensorless, which means that the system is easy to be implemented without interfering operation     

DTV TS输出平台的建立

论证了将软件编码的数字电视传输流数据文件转换成并行码流输出的软硬件实施方案 ,并给出了研制的系统。系统基于微机构筑 ,工作于 Windows环境 ,编码制式、参数以及输出码率等可灵活设定 ,可作为数字电视系统测试信号源。     

Geographic distribution of medical supplies and the numbers of hospital inpatients in the secondary medical areas in Japan

A secondary medical area is defined as a medical administrative area under the Medical Care Law by which every prefectural government is expected to provide general medical care supplies such as beds for inpatients. This study evaluated the distribution in medical supplies among the secondary medical areas in Japan and the correlation between medical supply and demand. The numbers of hospital inpatients (residence of patients), physicians, and general beds excluding those for mental disorders and tuberculosis were analysed in relation to the population in all secondary medical areas in Japan. Those data were obtained from surveys conducted by the Ministry of Health and Welfare. The main results were as follows; 1) The distribution of physicians and general hospital beds among the secondary medical areas was not equal. 2) Even adjusted for the sex and age distribution, the highest hospital inpatients/population ratio among the secondary medical areas was four times as large as that of the lowest. 3) With multiple regression models, two independent variables (normal hospital beds/population ratio and aged 65 and over/total population ratio) accounted about 60% of the variance in hospital inpatients/population ratio. 4) The differences in medical supplies among the secondary medical areas may cause the differences in hospital inpatients/population ratio.     

武钢4号高炉大修改造出铁场系统设计

武钢４号高炉出铁场系统设计属老系统改造设计，新增了带除尘风道的弧形钢风口平台，Ｄ．Ｄ．Ｓ型全液压泥炮、立柱旋转式电动开铁口机、半贮铁双砂口式快干浇注料等设计项目，高炉投产后的生产实践证明，新设计的出铁场系统达到了改善炉前环境，满足生产需要的目的。