全文获取类型
收费全文 | 157篇 |
免费 | 1篇 |
国内免费 | 6篇 |
专业分类
安全科学 | 36篇 |
废物处理 | 2篇 |
环保管理 | 37篇 |
综合类 | 51篇 |
基础理论 | 7篇 |
污染及防治 | 12篇 |
评价与监测 | 13篇 |
社会与环境 | 6篇 |
出版年
2023年 | 3篇 |
2022年 | 2篇 |
2021年 | 6篇 |
2020年 | 5篇 |
2019年 | 2篇 |
2018年 | 1篇 |
2017年 | 5篇 |
2016年 | 7篇 |
2015年 | 9篇 |
2014年 | 11篇 |
2013年 | 13篇 |
2012年 | 5篇 |
2011年 | 17篇 |
2010年 | 5篇 |
2009年 | 9篇 |
2008年 | 4篇 |
2007年 | 12篇 |
2006年 | 6篇 |
2005年 | 5篇 |
2004年 | 9篇 |
2003年 | 5篇 |
2002年 | 2篇 |
2001年 | 4篇 |
2000年 | 2篇 |
1999年 | 1篇 |
1998年 | 2篇 |
1997年 | 4篇 |
1996年 | 1篇 |
1995年 | 2篇 |
1994年 | 1篇 |
1993年 | 1篇 |
1989年 | 2篇 |
1984年 | 1篇 |
排序方式: 共有164条查询结果,搜索用时 125 毫秒
121.
飞机风挡防(除)雾系统安全性能分析 总被引:2,自引:1,他引:1
常士楠 《中国安全科学学报》1998,8(4):31-37,66
飞机的风挡防(除)雾对飞行安全具有十分重要的意义。为此,重点研究飞机风挡内表面热气防(除)雾系统的性能,针对自由射流热空气防(除)雾系统,建立了其稳态安全性能评判模型,并以某型飞机风挡为例,在两种供气条件下,分析和计算了系统的结雾情况,根据综合分析得出结论 相似文献
122.
123.
研制了一种新的汽车尾气净化催化剂。其贵金属以Pt,Pd为主活性组分,载体以堇青石陶瓷蜂窝体涂复天然沸石粉,经测定,催化剂净化汽车尾气的活性,热稳定性,及抗铅,中毒等性能均较好,台架试验表明,催化箱对HC和CO均有很高的净化效果,HC转化率≥85%,CO转化率≥91%,并且该催化剂具有良好的冷起动性能。 相似文献
124.
黄伟梧 《中国安全科学学报》1993,3(4):8-11
思维、反应、行动,是构成职业安全“行为模式”的基本环节。这些环节运转正常,职业活动就能满足职业安全的需要。为了提高操作者的安全防护能力,有必要分析职业安全“行为模式”的基本特征和要点,认为:1.应努力造就人的“双重性”思维模式,即“识别的双确认,判断的双侧面,应变的双保险”,从根本上控制人为失误。2.完善人的反应模式—一念三思,一变三联,一动三看(即“三·三守则”),保证操作者反射行为的正确导向。3.练就一套稳固、熟练的应变动作系列,防止操作者在职业活动过程中操作变型,机能失调。 相似文献
125.
INTRODUCTION: Safety hazards are unavoidable in many work environments. Employees must be both productive and safe, however, conflicting safety and production demands can negatively affect safety, production, or both. The employee's perception of the compatibility of management's safety and production expectations is a possible predictor of such consequences. This paper defines "safety-production compatibility" and describes how measures of safety-production compatibility, as well as safety pressure and production pressure, were developed. METHOD: We used LISREL structural equation modeling to test the influences of safety-production compatibility, safety pressure, and production pressure on safe work behavior and interference with performing other work tasks. The 239 study participants were workers employed in diverse but hazardous occupations. RESULTS: Pressure to work safely was positively associated with safe work behavior. The perceived compatibility of safety and production demands positively influenced safe work behavior and reduced the interference of safety hazards performing other tasks. Safety-production compatibility was also found to mediate the relationship between trust in management and safe work behavior. CONCLUSIONS: The results of this field study suggest increased compatibility, and thus less conflict, between safety and production demands influences safe work behavior and the interference of safety hazards with performing other work tasks. More broadly, the worker's reaction to multiple work demands is a safety and performance influence. IMPACT ON INDUSTRY: Safety management efforts that focus only on the hazards fail to eliminate many accidents because accidents arise from many factors including technology, safety climate, social influences, production, and safety demands. This study suggests that workers differ in their perception of the compatibility of safety and production demands. These differences will show up in safe work behavior, influencing the effectiveness of safety management efforts and the trust workers have in management's concern for safety. 相似文献
126.
高效液相色谱法测定矿区塌陷区水体中多环芳烃 总被引:1,自引:0,他引:1
高效液相色谱法是目前多环芳烃(PAHs)测定最常用技术之一。针对EPA规定的16种优先控制PAHs污染物,采用高效液相色谱法进行矿区塌陷区水体样品的测试。通过紫外-荧光串联使用,紫外检测器变波扫描,荧光检测器波长切换,合理设定流动相梯度洗脱程序等手段优化分析条件,使16个组分在40min内获得良好的分离效果。并分别选取在紫外和荧光检测条件下各组分的最大响应进行定量,使各组分均具有更低的检出限。本方法精密度为0.98%~10.4%,加标回收率达72.4%~112%,可作为各种环境样品中PAHs分析检测的参考。 相似文献
127.
128.
Energy production for oil companies requires high-performance equipment. However, after a certain period of use, this equipment could be damaged, causing numerous problems and defects, impeding production, and leading to incidents that may cause material and human losses. Therefore, it is necessary to master the performance parameters of each equipment, which are key indicators of its functionality and can indicate the possibility of reusing it after inspection and diagnosis. However, it is worth noting that the studied system is a vertical cylindrical furnace in Algeria's refinery. This paper describes a new hybrid approach, a methodology that evaluates system reliability by combining two studies. The first is based on the surety of the system's functioning through an analysis with a fault tree to identify the risks, followed by a quantitative analysis using a Bayesian method. The second study follows the thermal calculation of the equipment's performance parameters, namely: the thermal efficiency (η), heat transfer coefficient (h), and heat absorbed quantity (Q), using heat balance equations to quantify the heat absorbed quantity and identify the fluid flow regime inside the tube. The calculation considers three cases: The design case, the failure case, and the after renovation case. The originality of this work appears when the collected findings from the second study are fed into the first study's Bayesian Network (BN) to analyse the system's reliability using the calculated parameters. Then, BN is used to calculate the Probabilistic Importance Factors (PIFs) in order to identify the most impactful system components. Finally, a prediction analysis was conducted. The latter reveals that one of the furnace's major faults is the fumes accumulation inside the combustion chamber. Corrosion, overheating, coke formation inside the tubes, dumper deformation, and burner tip clogging all contribute to this fault. 相似文献
129.
Economic and financial aspects of mine closure 总被引:1,自引:0,他引:1
James R. Kahn Dina Franceschi Adilson Curi and Eduardo Vale 《Natural resources forum》2001,25(4):265-274
Today, mine reclamation is a key component to a successful mine plan. Most of the industrialized nations have recognized the need to make mining activities relatively environmentally friendly, if they want to continue to benefit from the economic gains from mineral resource development. Countries such as the United States, Canada, Australia and South Africa are leaders in the field and have implemented relatively sophisticated legislation to ensure environmentally correct mine closure. These countries rely on a combination of strict control strategies and economic penalties to ensure compliance. Yet, from the firm's perspective, reclamation activities are counterproductive as they cut into profits. In order to attract economic development and earn much needed economic capital, most of the rest of the world, particularly the developing countries, lack effective mine closure legislation. The traditional command and control type of legislation that is sometimes used is either vague and therefore avoided, or not enforced appropriately, resulting in an undesirable level of environmental degradation. With the use of case studies from Brazil, this article shows that direct controls are effective in some instances and not in others. It proposes that economic and financial tools may be more effective than the traditional direct controls in getting firms to comply with environmental standards, particularly in developing countries where environmental compliance is more difficult to achieve. It explains the use of performance bonding as one type of economic incentive that has proven to be an effective environmental policy in mine planning and closure. The authors additionally push beyond the typical style of performance bonds to introduce a flexible bonding and insurance system that allows governments to maintain strict environmental standards but limits firms financial exposure during the mining process. Such a system learns from the successes of the industrialized countries that use performance bonding and is sensitive to the needs of developing nations to attract investment yet maintain environmental integrity. 相似文献
130.
分析了现阶段环境空气自动监测站运维现状,探讨从准入条件、运维经费、质量监管、绩效评估等方面,建立社会化运维机构的量化管理与评价模式。提出基于站点运行维护、质控考核、仪器运转率、自动监测数据有效率等要素,建立量化评估机制,采取以运维绩效为主、准入和运维服务为辅的权重分配原则,根据评估指数的分级评价标准,对社会化运维机构及其运维活动进行量化评估。 相似文献