一种通过事件调查测量企业安全管理体系绩效的方法

介绍了意大利皮埃蒙特地区环保署所采用的安全管理体系绩效测量方法,该方法将事件调查和绩效指示参数关联,可以对体系绩效进行测量,并能找出体系要素需要改进的方向或措施。     

测量管理体系标准的建立与实施——计量管理的基础

积极在企业中推行测量管理体系确认活动,使计量工作提高产品质量和推行现代企业管理制度及港口装卸服务质量等方面都发挥了重要的作用.为了更好地提高计量管理工作水平,在此就测量管理体系确认的理解和认识与大家进行共同探讨.     

智能电网及其关键技术综述

阐述了智能电网的历史、内涵、特征及其发展现状,总结了智能电网的关键基础技术,包括集成的通信技术、传感与测量技术、输配电设备技术、控制技术、决策支持和可视化技术.     

综合物化探方法在石庙子沟金矿勘查中的应用

在石庙子沟金矿勘查中,运用了物化探综合方法测量。各方法在金矿体上均有不同的异常反映,异常的吻合程度较好。经槽探工程验证,实测异常分布特征与矿(化)体吻合。表明采用物化探综合方法测量寻找金矿体是行之有效的找矿方法。     

堆芯中子注量率测量系统核级阀门的型式试验

堆芯中子注量率测量系统是30万千瓦核电厂监测系统的重要组成部分。该系统中的手动阀、止回阀和电动阀(阀体)属于核级阀门。介绍了堆芯中子注量率测量系统的组成和功能,并根据ASMEQME-1—2002规范从试验项目、环境条件和考核指标等方面对手动阀、止回阀和电动阀提出了型式试验技术要求。制造厂根据型式试验技术要求制定了手动阀、止回阀和电动阀试验大纲,并对样机进行了型式试验和检验,试验结果满足试验大纲要求。     

IPP图像分析技术在长霉面积定量测量中的应用

介绍了应用IPP图像分析软件对数码相机采集的霉菌试验样品长霉面积的定量分析方法,包括测量单位标定、AOI的参数选取和使用、面积测量和计数等。结果表明,利用IPP可便捷、准确地测量长霉面积,测量结果可靠。该方法有助于对长霉等级和霉菌试验结果做出正确评定。     

On-road pollutant emission and fuel consumption characteristics of buses in Beijing

On-road emission and fuel consumption (FC) levels for Euro III and IV buses fueled on diesel and compressed natural gas (CNG) were compared, and emission and FC characteristics of buses were analyzed based on approximately 28,700 groups of instantaneous data obtained in Beijing using a portable emissions measurement system (PEMS). The experimental results revealed that NOx and PM emissions from CNG buses were decreased by 72.0% and 82.3% respectively, compared with Euro IV diesel buses. Similarly, these emissions were reduced by 75.2% and 96.3% respectively, compared with Euro III diesel buses. In addition, CO2, CO, HC, NOx, PM emissions and FC of Euro IV diesel buses were reduced by 26.4%, 75.2%, 73.6%, 11.4%, 79.1%, and 26.0%, respectively, relative to Euro III diesel buses. The CO2, CO, HC, NOx, PM emissions and FC factors all decreased with bus speed increased, while increased as bus acceleration increased. At the same time, the emission/FC rates as well as the emission/FC factors exhibited a strong positive correlation with the vehicle specific power (VSP). They all were the lowest when VSP < 0, and then rapidly increased as VSP increased. Furthermore, both the emission/FC rates and emission/FC factors were the highest at accelerations, higher at cruise speeds, and the lowest at decelerations for non-idling buses. These results can provide a base reference to further estimate bus emission and FC inventories in Beijing.     

Electromagnetic irradiation exposure and its bioindication – An overview

Man made electromagnetic irradiation and fields cover now the globe due to the recent extensive propagation of mobile telephony. The increased load affects animals and also plants. Especially birds have been studied. Humans are also sensitive. They are good bioindicators as epidemiological methods are available. Humans can also report symptoms which cannot be directly measured with presently available technologies. The nonionizing irradiation can as the ionizing one break the DNA, damage proteins, even increase the blood brain barrier permeability, disturb the night rest, cause fatigue and hormonal disturbances. An increase of the tumours of human head has been described in correlation with the long term mobile phone use and on that side more exposed. The regulations covering mobile telephony are already about two decades old and need re-evaluation. The multitude of irradiation and the interaction of the different wavelength exposures, i.e., frequency sensitivity is poorly known at present. We should not forget the comparative studies of different species especially those which rely in their lives on electromagnetic orientation physiology. Some countries have issued warnings on the exposures of children. The producers of mobile technology have recently warned the users not to keep those devices in active stage in skin contact.     

水样中氯化物测量不确定度的评定

目的对硝酸银滴定法测定水中氯化物含量的不确定度的来源及其对测量不确定度的影响进行分析。方法根据《测量不确定度评定与表示》JJF1059-1999对《生活饮用水标准检验方法》(GB/T 5750-2006)中氯化物测定的硝酸银滴定法的测量不确定度进行分析评定。结果按数学模型计算水样中氯化物浓度为25.2mg/L,水样中氯化物测定结果的扩展不确定度为0.6mg/L,结果表达为(25.2±0.6)mg/L。结论水样中氯化物含量测定的测量不确定度影响中,以分析滴定中消耗硝酸银标准溶液的体积引入的不确定度最大,其次为配制NaC l标准使用溶液引入的不确定度。     

环境试验设备检验自动化

本文描述了实现环境试验设备检验自动化的方法。根据国家标准、国家计量技术规范规定的检验步骤及方法,研制了环境试验设备检验系统,该检验系统可由用户选择一种国家标准、国家计量技术规范进行检验,自动采集并保存测量点的温湿度数据,按照选定的标准、规范规定的算法自动计算出检验项目的结果,极大地提高了检验工作效率。