地面装备红外辐射测量不确定度分析研究

目的 分析评价复杂背景环境下地面装备红外辐射成像特性的测量精度.方法 基于红外辐射成像测量与定标原理,全面分析复杂环境下地面目标动态红外辐射成像测量中由设备性能、环境干扰、操作参数设置及相对运动等所引入的8项误差因素.采用校准黑体与被测目标等距离同视场同步标定测量方法,基于试验方法评定各测量不确定度因子,构建地面装备红外辐射表观温度测量不确定度评定模型.结果 在置信概率为95％的条件下,典型地面车辆目标在静态和动态红外辐射表观温度测量不确定度分别为1.54℃和2.60℃.结论 形成的基于红外热像仪的复杂背景环境下地面车辆目标红外辐射成像精确度的表征与评价方法,对于地面装备红外辐射特性精确测量与红外隐身伪装性能准确评估研究具有重要参考意义.     

岛礁装备设施腐蚀现状及腐蚀控制策略研究

南海岛礁装备设施的服役环境恶劣、腐蚀问题严重.在分析南海岛礁装备服役环境情况的基础上,介绍了南海岛礁装备设施的腐蚀现状,从服役环境、装备论证、设计、鉴定、维护保养等全寿命周期角度剖析了造成南海岛礁装备腐蚀问题的原因,并从腐蚀数据采集、装备防腐设计、防腐工艺优化、完善试验鉴定、重视维护保养、构建系统治理构架等几个方面探讨了加强岛礁装备设施腐蚀控制的对策,就如何全面做好岛礁装备设施腐蚀防控工作进行了展望.     

Recycling of electronic displays: Analysis of pre-processing and potential ecodesign improvements

This article analyses the current and future end-of-life management of electronic displays (flat screen televisions and monitors), and identifies and discusses possible ecodesign recommendations to improve it. Based on an investigation of the treatment of displays in two typical European recycling plants, key aspects and criticalities of the recycling methods (sorting, dismantling and pre-processing) are identified. Disaggregated data concerning on-site measurements of the time needed to manually dismantle different displays are presented. The article also discusses the potential evolution of end-of-life scenarios for electronic displays and suggests possible recommendations for recyclers, producers and policy-makers to promote resource efficiency in the recycling of such waste products. Data on time for dismantling the displays can be used to build measurers for voluntary and mandatory policies, to stimulate design innovations for products improvement, and to assess possible alternative treatments of the waste during the pre-processing at the recycling plants. Some quantitative product measures (based on the time thresholds for dismantling some key components) are also discussed, including an assessment of their economic viability. These measures can potentially be enforced through mandatory and voluntary European product policies, and could also be extended to other product groups.     

航材一体化装备保障研究

“建立和完善军民融合式的军队保障体系,走出一条中国特色军民融合式发展路子”这是党的十七大提出的明确要求。装备保障是充分发挥装备作战效能的关键,而航材保障是装备保障的重要基础。随着武器装备体系建设的不断完善和快速发展,对航材备件的保障提出了更高的要求。对航材一体化保障国内发展现状及一体化保障优势进行阐述,对发展基本途径进行分析,并指出了航材一体化装备保障的发展方向。     

机载设备振动条件确定方法的研究

本文以机载显控台上的显示器为例,结合GJB 150A和GJB 4239的指导,介绍了在设计阶段和生产阶段上分别通过配重和设备的振动试验测量设备安装位置的响应,分析数据并确定机载设备振动试验条件的方法。     

Test Method for Retractable Type Fall Arresters Designed for Horizontal Use

Retractable type fall arresters are designed to protect against falls from a height of people who need freedom of vertical movement. The practice of fall protection shows that the devices are also used to protect people who work on flat roofs. This application creates quite different operating conditions for the devices. In some situations those conditions can be dangerous for users. The article presents a theoretical analysis of phenomena occurring during a fall arrest with retractable type fall arresters arranged horizontally. The analysis was verified with laboratory tests. The article presents a proposal for the construction of a test stand and a test method for estimating retractable type fall arresters intended for horizontal use.     

Locking of Retractable Type Fall Arresters—Test Method and Stand

Retractable type fall arresters are very effective personal equipment protecting against falls from a height. These devices are used under different atmospheric conditions and in the presence of various types of industrial pollution. For this reason appropriate locking after conditioning simulating extreme conditions of a worksite is one of the essential characteristics of retractable type fall arresters. This article presents the requirements for locking of the devices. A previously used locking test method and its disadvantages are discussed. The article suggests an improved test method and test equipment. Measurement of the test mass acceleration is the most important improvement introduced into the test method. The article shows laboratory tests used to verify the method, which turned out to be a valuable source of information concerning the performance of retractable type fall arresters.     

Ecological and economical assessment of end‐of‐life waste recycling in the electrical and electronic recovery sector

Technological innovation and shorter product life cycles of electrical and electronic equipment coupled with their rapidly growing applications have resulted in the generation of an enormous amount of waste from electrical and electronic equipment (WEEE). To address the potential environmental problems that could stem from improper end‐of‐life management of WEEE, many countries have drafted national legislation to improve the reuse, remanufacture and material recycling from WEEE, and to reduce the amount of such waste going to landfills. With the introduction of such legislation comes an increased need for the recovery operators to evaluate the recycling costs and environmental benefits of reclaimed products and materials in order to select the most appropriate end‐of‐life options for individual products in WEEE. This paper presents a systematic methodology for ecological and economical assessment to provide a holistic understanding of the impacts associated with different end‐of‐life options for such waste. This assessment, in addition to providing decision‐support for the selection of the best possible end‐of‐life option for a particular product in WEEE, could also generate vital information to support the design and material selection processes during the initial product development activities. The assertion made is that the detailed considerations of the ecological and economical impacts associated with different end‐of‐life options will significantly improve the recovery and recycling of WEEE.     

地震作用下建筑物内重要设备半主动减震控制

为了有效地减小重要设备在地震荷载作用下的动力反应，提出了使用磁流变阻尼器进行半主动控制。首先分析了减震器的本构模型，建立了主体结构的动力方程，以设备的相对位移和相对加速度作为控制变量，提出了相应的半主动跟踪控制算法。数值分析表明，安装磁流变阻尼器的设备的加速度和相对位移显著减小，因而能保证重要设备的正常使用。     

污水处理厂设备的更新

分析污水处理厂设备运行状况，对设备更新前后，从投资角度，进行经济分析，以提出设备更新年限，提高污水处理厂经济效益。