利用蓝牙技术构建电梯无线控制原型系统

介绍将蓝牙技术应用于电梯无线控制系统中，具有布线少，成本低，安装维护容易等优点，并详细介绍了基于蓝牙技术的电梯无线控制原型系统的实现原理，讨论了进一步完善该系统的后续工作。     

三遥系统在水源地的应用

以河津电厂水源地遥控系统为例,介绍了三遥系统在水源地的应用,分别阐述了MRC型无线测控系统性能及存在问题,JSY型无线测控系统特点及运行情况,并提出系统运行注意事项及故障排除方法,以期指导实践。     

SCADA系统在自来水行业中的应用

随着自动化和计算机技术的飞速发展,SCADA系统在许多企业的生产管理和调度中得到了广泛的应用。本文以绵阳市自来水公司已实施的无线遥控城市供水计算机调度管理系统为例作详细介绍。     

浅谈陆军重（中）型合成营综合组网中的无线接入网

无线接入网是陆军重(中)型合成营综合组网的重要组成部分,依托该网络,合成营通信网络中的主要节点可接入上级建立的区域公网,实现与远距离用户在公共信息信输平台上的信息交互与共享。本文从介绍陆军重(中)型合成营通信网络体系出发,分析无线接入网的基本网络结构和功能,并对无线接入网的主要运用方式和相关问题进行分析。     

一种室内无线照明控制网络的实现方式

针对室内智能照明控制的现状进行了分析,指出了二线制智能照明控制系统存在的不足。提出了利用无线射频通信技术,开发可以同时实现本地回路控制和远程监控的无线照明控制末端设备,实现智能照明控制系统无线化的解决方案。     

一种通用学习型电视机语音控制系统的设计

本文介绍了一种通用学习型语音控制电视机遥控装置,它整合当前流行的语音控制技术,无线信号传输技术、红外信号调制等技术,实现了非特定人语音控制电视机的目的,无需改造电视机本身,经济成本也较低,因而对广大使用者尤其是老年及肢体残障人士具有良好的使用前景。     

无线传感器网络的特点和应用

随着信息化技术的不断发展,无线传感器网络成为最主要的无线网络技术之一,同时也成为了研究热点。无线传感器网络应用非常广,在军事、医疗、交通、家庭等应用领域都有着极高的应用价值。本章首先介绍了无线传感器网络的特点,其次对无线传感器网络的关键技术进行讲解,然后对无线传感器网络的主要应用进行了介绍,最后本文对无线传感器网络的研究进行总结和展望。     

基于si4432的施工升降机无线控制模块的设计

针对无线传输在工业现场中能够降低传输成本,提高传输效率而设计了一款基于PIC16F689单片机和si4432的无线控制模块,并对其硬件和软件设计进行了说明。它能够提升无线产品的性能并简化无线产品设计,性能稳定、尺寸小、成本低,具有较高的实用价值。     

无线网络在翻车机系统中的应用

结合湖南某工程翻车机项目，介绍了无线和总线远程控制方式在翻车机电气控制系统的开发与应用，以及对应用中干扰问题的分析与解决，从而大大提高了翻车机成套设备的自动化程度和可靠性，提升了市场竞争力。     

无线火灾自动报警系统的设计与应用研讨

分析了无线火灾自动报警系统的结构,详细介绍了无线火灾探测器和火灾报警控制器,探讨了无线火灾自动报警系统的软件,以提高人们对无线火灾自动报警系统的认识,推广该无线火灾自动报警系统的应用。     

Total and extractable contents of trace metals in agricultural soils of the Valderas area, Spain

The surface horizons of four agricultural field soils (Mollic ustifluvents, Alfic Xerochrepts, Typic Palexeralfs, Typic Haploxeralfs) were sampled to determine the total copper, cobalt, molybdenum, zinc, chromium, nickel, selenium, cadmium, lead, mercury, lithium and strontium, and were also fractionated by an extraction procedure to estimate the quantities of these trace metals in soluble form. The extractants used were the following: 1.0 N NH4 OAc for lithium and strontium, 0.05 M Na2-EDTA for cadmium, copper, nickel and zinc, 2.5% (w/v) acetic acid for lead, 2.5% (w/v) acetic acid and 2% (w/v) dithizone for cobalt, 2% (w/v) diethyldithiocarbamate solution for selenium, 0.1 NHCl for chromium, and 0.5 NHCl for mercury. The total content of these twelve elements in the four field soils sampled were lower than the levels quoted in the literature, although for different geochemical systems. The percentage of the total element content in soluble form was (except for selenium) generally very low, averaging between 5.5 and 8% for copper, 1.6 and 2.5% for cobalt, 8 and 10% for molybdenum, 1.8 and 2.2% for zinc, 14.2 and 17.7% for chromium, 5.5 and 6.4% for nickel, 30 and 55% for selenium, 8 and 14% for cadmium, 3 and 3.6% for lead, 8.3 and 11% for mercury, 5 and 7% for lithium, and 4.4 and 5.7% for strontium, regardless of the soil type.     

经济分析在空调冷热源选择的应用

结合工程实例,对6种冷、热源方案进行了     

(火用)经济分析在空调冷热源选择的应用

结合工程实例,对6种冷、热源方案进行了火用经济分析。6种方案为:采用离心式冷水机组供冷,燃油锅炉供热;采用直燃式溴化锂吸收式冷热水机组;采用风冷螺杆式冷水机组供冷,燃油锅炉供热;采用蒸汽双效溴化锂吸收式冷水机组供冷,燃油锅炉供热;采用水源热泵;采用螺杆式水-水热泵。方案4最优。     

关于规划信息标准化建设的若干思考

系统应用与信息管理的需要、数据共享与交换的需要、信息多样化与多源化的需要是规划信息标准化的内在动力.规划信息标准化建设应按信息的空间性和时间性的强弱来确定实施等级,建立规划信息共享与交换标准、规划成果综合验收机制、规划数据质量评估体系和规划信息价值评估体系.     

浅谈砖混结构的加层加固设计

阐述了砖混结构房屋加层改造设计的意义,提出了砖混结构房屋加层加固的工作程序、方法和设计的内容,指出对已建房屋的加层及加固设计,除需执行一般设计的现行国家规范和行业标准外,还应执行有关加层及加固设计的标准。     

综合客运枢纽客流引导标识设计要点分析

分析了目前综合客运枢纽客流引导标识及其设计存在的问题,通过调查对四种不同类型的客流引导标识进行了设计,得出相应类型的客流引导标识设计要点,以对综合客运枢纽客流引导标识的改善和设计提供参考。     

谈超高层建筑给排水及消防设计

以一幢建筑高度超过200 m的青岛中南海湾新城项目建筑给排水及消防设计为例,介绍了超高层建筑生活给水设计,生活热水设计,消火栓系统设计,自动喷水灭火系统设计,以及排水和雨水系统设计,总结了超高层建筑给排水设计的经验,以指导实践。     

砌块车间设计

结合环保工作和国家墙体材料改革的需要,对砌块车间的设计与环境理念进行了阐述,并对该车间的平面、立面设计要点进行了论述,归纳了砌块的生产工艺流程,最后指出了工业厂房的建筑设计和发展方向。     

Gußasphalt‐Dichtsysteme in Anlagen zum Lagern,Abfüllen und Umschlagen wassergefährdender Stoffe – Neue allgemeine bauaufsichtliche Zulassungen

Flouting asphalt in sealing systems for plants used for the containment, handling and filling substances hazardous to water, new technical approvals. Sealing systems in plants, parts of them and technical protection devises for the dealing with substances hazardous to water have to satisfy certain requirements as laid down in the different fiends of national public law, for example law relating to water, building regulations, law on protection of work, etc. The Deutsche Institut für Bautechnik (DIBt) granted technical approvals in the field of sealing systems for plants used for the containment, handling and filling substances hazardous to water. The requirements of materials and for the tests for their properties of them are laid down in the principles or test programs for technical approvals by DIBt. The Deutsche Institut für Bautechnik (DIBt) granted new technical approvals for sealing systems made of flouting asphalt for plants used for the containment, handling and filling substances hazardous to water.     

Die neuen Stabilitätsnachweise im Stahlbau nach Eurocode 3

New assessment rules for stability of steel‐structures in Eurocode3. Steel structures are light‐weight structures with great advantages for aesthetics and sustainability. However these advantages have to be compensated by accounting for more stability rules. In Eurocode 3 – Part 1 “Design of steel structures – Basic rules and rules for buildings” various stability rules for bar‐structures, plated structures and shell structures are given that comprise either rules for equivalent geometrical imperfections for second order analysis or formulas for member verifications with imperfections being implemented. This report deals in particular with the consistency of rules for imperfections and formulas for member resistance. Such a consistency exists for flexural buckling verifications, but it is not eo ipso evident for lateral torsional buckling verifications for beams subject to bending, combined compression and bending and combined compression and biaxial bending. To clarify the situation this paper gives the background and a technical guidance for using the “general method” in Eurocode 3 – Part1–1, so that flexural buckling, lateral torsional buckling and any combination for these under any in plane and out of plane loading with any boundary conditions can be easily assessed. The “general method” is checked in view of sufficient reliability according to EN 1990 – Annex D. Comparisons are also given with the results of alternative rules in Eurocode 3 – Part1–1 intended to be used for special cases.