The Relationship Between Psychosocial Work Factors,Work Stress and Computer-Related Musculoskeletal Discomforts Among Computer Users in Malaysia

We analyzed occupational exposure to potentially infectious body fluids among health care workers (HCWs). Nurses were the most common exposed category of HCWs. In 73.6% cases needle sticks had been the reason of exposure. Recapping a needle was the cause of exposure in 6.9% accidents. Among 189 registered HCWs, 66 (34.9%) performed invasive procedures without any personal protective equipment. Prophylaxis with antiretroviral drugs was necessary in 43 (22.8%) cases.

As many as 60.3% of exposure incidents to potentially infectious material result from non-compliance with the relevant recommendations. Continuous education and training is critically needed to prevent occupational exposure to blood-borne infections among health care workers.     

PM2.5与呼吸防护

本文针对社会公众普遍关心的PM2.5及其呼吸防护等问题,从PM2.5的尺寸、组成和危害及自吸过滤式防颗粒物呼吸器的技术要求重点探讨了PM2.5可不可以防、如何来防,以期解除公众对PM2.5的神秘感,同时也提出了公众在面临PM2.5和大气污染时的应对策略。     

Forecasting iron ore import and consumption of China using grey model optimized by particle swarm optimization algorithm

The iron and steel industry plays a fundamental role in a country's national economy, especially in developing countries. China is the largest iron ore consumption market in the world. However, because of limited domestic iron ore resources, a large proportion of iron ore is imported from other countries. Faced with the conflict between the iron ore supply shortage and the growing demand, it is necessary for the government to predict imports and total consumption. This paper develops a high-precision hybrid model based on grey prediction and rolling mechanism optimized by particle swarm optimization algorithm. We use the China Statistical Yearbook (1996–2011) as our database to test the efficiency and accuracy of the proposed method. According to the experimental results, the proposed new method clearly can improve the prediction accuracy of the original grey model. Future projections have also been done for iron ore imports and total consumption in China in the next five years.     

海洋石油平台生活污水COD快速测定方法

为快速检测海洋石油平台生活污水的COD,同时减少海水中Cl-对数据的影响,崖城海上平台实验室结合自身特点,采用哈希试剂加入一定量硫酸汞的方法来屏蔽Cl-,测量结果达到了预期目标,满足海洋石油海上生活污水快速准确的检测要求。     

我国环境事件生发机理的Logistics回归分析

以近年来我国发生的有影响力的100个环境事件为研究对象,通过多元Logistics回归方法。利用环境污染生境、污染主体特征、污染物特征、对象敏感性、社会敏感性、治理难度和治理效果7类变量23类观测指标解析了影响环境事件发生的显著因素。以此为基础,分别给出了控制和预防大概率小损失、大概率大损失、小概率小损失和小概率大损失环境事件发生的政策建议。     

热解镀层石墨管在无标准分析法测定环境样品中镉的应用

本文选择了最佳实验条件和混俣基体改进剂（钯＋酒石酸），使热解镀层石墨等有可能用于无标准分析法测定各种环境标准参考物质中的镉。引入有效原子化温度（Ｔｅｆｆ）概念后，在Ｔｅｆｆ大于１６００Ｋ和使用钯和酒石酸为混合基体改进剂，用各种环境标准参考物溶液得到的实验特征量值，接近理论特征量值。     

企事业单位的震害预测

本文给出了企事业单位的震害预测方法。其特点是:与当地地震危险性分析和场地地震动参数相结合;把结构的整体动力计算与薄弱部位抗震构件验算和普查结果相结合;把建筑物的震害预测与震害调查和试验研究结果相结合。     

搞好噪声治理改善环境质量

石化企业是噪声大户，由压缩机、鼓风机、机泵等声源设备及其它背景噪声构成了各种各样的噪声源，不但单源声级峰值高，而且面源辐射面积广，治理难度非常大，辽化公司采取自难而易的原则，对纤维生产中重点噪声源进行了治理，收到了明显的成效。     

对硝基苯胺－H酸分光光度法测定水中亚硝酸盐

为提高光度法测定水中亚硝酸盐的分析灵敏度，利用亚硝酸离子在盐酸介质中与对硝基苯胺发生重氮化反应，然后在碱性介质中与Ｈ酸偶联，生成紫红色偶氮化合物。对实验条件进行了试验，提出了污染水中亚硝酸盐的测定方法，其最大吸收波长λｍａｘ＝５７４ｎｍ，摩尔吸光系数ε５７４＝４．８×１０４。此方法简便、快速、选择性好，灵敏度高，测定结果可靠。     

某催化裂化装置生产过程中职业病危害因素调查

通过对催化裂化装置生产过程中职业病危害因素调查,找出职业病危害的关键控制点,并提出防护要求。