爆炸硐室的技术设计

建造一座爆炸硐室（最大设计炸药量为１ｋｇ当量ＴＮＴ，一般实验室药量为０．３～０．６ｋｇ当量ＴＮＴ），由于场地限制，只能建于紧接办公楼，并与教学楼和图书馆仅一路之隔的一段空地上。为了确保安全和降低造价，采取了多项独特的设计技术，如将硐室埋于地下，通过爆炸力的计算确定其形状和体量，合理选择硐室材料及其环形构造层次，并通过在两个支座处设置缓冲砂沟、串联钢管和氯丁橡胶板等隔离隔震措施，尤其是在排烟口设置多节腔抗性消声坑等有效方法，使其噪声控制的效果达到了预期的目标，且节约投资３０万元。根据两年来的使用情况表明，具有推广价值。     

水力空化强化臭氧消毒技术的影响因素研究

采用水力空化强化臭氧消毒技术对饮用水进行消毒，考察了臭氧体积流量、多孔板的几何参数及其入口压力、pH值等对消毒效果的影响。试验结果表明：适宜的臭氧体积流量为0．04m^3／h；提高多孔板的入口压力有利于改善消毒效果；在入口压力一定的条件下，多孔板的孔径越小则消毒效果越好，而当总孔周长与总过流面积之比一定时，过流面积比越大则消毒效果越佳；当pH值为4～10时，提高pH值有利于改善灭菌效果；单独水力空化、臭氧氧化以及它们的联合工艺对细菌的杀灭均遵循表观一级动力学模型。     

Identifying Features of Pocket Parks that May Be Related to Health Promoting Use

Urban green spaces have been shown to promote health and well-being and recent research indicates that the two primary potentially health promoting uses of pocket parks are ‘rest and restitution’ and ‘socialising’. The aim of this study is to identify features in pocket parks that may support these uses. The relationship between the two types of use and the shape, size, noise level, greenness, as well as ‘elements’ (paved and unpaved trails, café, historical feature, table, other seating than benches, flowerbeds, view outside park, playground) in nine pocket parks in Copenhagen were analysed. The results show that ‘green features’ do not seem to be of crucial importance for ‘socialising’ whereas, as expected, features promoting gathering should be prioritised. For ‘rest and restitution’, the main results show that ‘green ground cover’ and ‘enclosed green niches’ are important, while ‘disturbing features’ (playground, view outside park) should be avoided. The results add knowledge about the features which support the health promoting use of pocket parks to the existing body of research.     

冶金矿山企业的噪声现状及其治理措施

我国钢铁联合企业中的黑色冶金矿山企业 ,从采矿、选矿到烧结各环节的生产过程中 ,都存在着较严重的噪声污染。其噪声源既有机械噪声、空气动力噪声 ,又有电磁噪声 ,比较广泛的分布在车间内。而且多数是超标噪声 ,对环境及生产工人的健康带来一定影响。现对选矿厂、烧结厂的噪声现状做了系统分析 ,并提出了相应的治理措施。     

锅炉风机噪声的危害及其防治对策初探

介绍了环境噪声污染的危害,从吸声、隔声、消声三方面分析了噪声治理的基本原理,从锅炉风机噪声的防治出发,论述了某矿锅炉风机噪声的降噪节能治理技术,并对降噪及节能效果进行了阐述,以达到经济、环境效益的统一。     

座椅下圆柱型多孔送风器的噪声测试和分析

通过对剧院座椅下圆柱型多孔送风器噪声的测试及其结果分析,指出这种送风器的噪声能符合剧院允许噪声标准,可以在剧院空调中应用。     

风机噪声的理论分析与解决方案

对由变频器输出中的高次谐波造成电动机运转噪声增大及载波频率与风机共振造成风机噪声的原因进行了理论分析，提出了解决方案。     

青岛市市南区道路交通噪声现状与趋势分析

环境噪声问题已成为社会关注的焦点.通过监测和统计数据,从宏观上对青岛市市南区道路交通噪声现状及趋势进行分析,提出相应建议,以期对改善交通噪声有所帮助.     

水力空化技术在废水处理中的研究与应用进展

在介绍水力空化技术的概念、特点和降解机理的基础上，综述了近年来国内外水力空化技术的研究与应用最新进展，提出了水力空化技术的发展方向。     

Community response to environmental noise and the impact on cardiovascular risk score

Objective

The objective of our study was to investigate and evaluate the relationship between road traffic noise and cardiovascular risk.

Methods

The study sample (n = 659; 36.9% male, 63.1% female university students, mean age 22.83 ± 1.58 years) included a group exposed to road traffic noise (n = 280, L_eq,24 h = 67 ± 2 dB(A)) and a control group (n = 379, L_eq,24 h = 58.7 ± 6 dB(A)). Subjective response was determined by a validated noise annoyance questionnaire. The ten year risk of developing a coronary heart disease event was quantified as an evaluation of cardiovascular risk (SCORE60, Framingham 10-year risk estimation and projection to the age of 60, relative risk SCORE chart).

Results

Cardiovascular risk scores were significantly higher in the exposed group based on the Framingham scores projected to the age of 60, SCORE60 (AOR = 2.72 (95% CI = 1.21-6.15)) and the relative risk SCORE chart (AOR = 2.81 (1.46-5.41)).

Conclusions

These findings highlight the association between road traffic noise and cardiovascular risk.