全文获取类型
收费全文 | 47篇 |
免费 | 0篇 |
专业分类
安全科学 | 1篇 |
废物处理 | 5篇 |
环保管理 | 4篇 |
综合类 | 2篇 |
基础理论 | 4篇 |
污染及防治 | 19篇 |
评价与监测 | 7篇 |
社会与环境 | 2篇 |
灾害及防治 | 3篇 |
出版年
2022年 | 2篇 |
2021年 | 1篇 |
2020年 | 1篇 |
2019年 | 2篇 |
2018年 | 2篇 |
2017年 | 1篇 |
2016年 | 1篇 |
2015年 | 3篇 |
2014年 | 1篇 |
2013年 | 10篇 |
2012年 | 5篇 |
2011年 | 3篇 |
2010年 | 2篇 |
2009年 | 4篇 |
2008年 | 1篇 |
2007年 | 1篇 |
2006年 | 2篇 |
1993年 | 1篇 |
1976年 | 1篇 |
1973年 | 1篇 |
1968年 | 1篇 |
1965年 | 1篇 |
排序方式: 共有47条查询结果,搜索用时 15 毫秒
41.
W. D. Conner C. F. Smith J. S. Nader 《Journal of the Air & Waste Management Association (1995)》2013,63(11):748-750
A smoke guide for use with white plumes has been developed by suspending size-graded industrial diamond dust in transparent plastic blocks. The guide consists of a series of four blocks containing dusts with white light transmittances of 20, 40, 60, and 80 per cent and scattering characteristics similar to those of white (oil) plumes commonly used for training smoke inspectors. The luminances of experimental plumes and guides with like transmittances are compared when viewed under different illuminating and viewing conditions. Similar tests with a U. S. Public Health Service Black Smoke Guide are also described. 相似文献
42.
An environmentally benign, simple, and efficient process has been developed for biodiesel production from waste olive oil in the presence of a catalytic amount of TiO2 nanoparticles at 120°C with a conversion of 91.2% within 4 h. The present method affords nontoxic and noncorrosive medium, high yield of biodiesel, clean reaction, and simple experimental and isolation procedures. The catalyst can be recycled by simple filtration and reused without any significant reduction in its activity. 相似文献
43.
44.
The development of reliable, accessible, and transparent earthquake early warning systems (EEWSs) for disaster reduction have been given increased priority at local, national, and international levels. Accurately quantifying the social and economic benefits accrued to households and businesses from EEWSs are a challenging and difficult task. In this paper, the Contingent Valuation Method (CVM) is used to evaluate the benefits of a hypothetical EEWS to the citizens of Tehran Metropolitan. This study clarifies public willingness to pay (WTP) for EEWS in Tehran, and the dominant factors involved in WTP through a CVM analysis. The survey, completed by more than 504 households, showed that on average households are willing to pay 367,471 Rials (~38 US$) per month for the hypothetical EEWS. Those willing to pay the most for EEWS are households, which currently possess a fire alarm. Also the more educated the respondents and the more children the respondents have, the more willing they are to pay for EEWS. These results could be used by policy makers and technology firms in order to determine the optimal investments in early warning systems for earthquake disaster reduction. 相似文献
45.
Asgari Lajayer Behnam Khadem Moghadam Nader Maghsoodi Mohammad Reza Ghorbanpour Mansour Kariman Khalil 《Environmental science and pollution research international》2019,26(9):8468-8484
Environmental Science and Pollution Research - Accumulation of heavy metals (HMs) in soil, water and air is one of the major environmental concerns worldwide, which mainly occurs due to... 相似文献
46.
Milad Abbasi Abolfazl Zakerian Ahmad Mehri Mohsen Poursadeghiyan Nader Dinarvand Arash Akbarzadeh 《International journal of occupational safety and ergonomics》2013,19(3):386-392
Objective. Cognitive failure is one of the factors which can be influenced by personal and professional characteristics. This research was carried out to study the effect of work-related quality of life (WRQoL) and some related factors on cognitive failures (CF) among nurses. Methods. This cross-sectional study was conducted among nurses working in intensive care units, critical care units and emergency units in 2014. Results. In total, 750 nurses participated in the study. The mean?±?SD for the total CF and WRQoL was 40.5?±?12.7 and 75.8?±?13.7 respectively. The results show that CF have a statistically significant difference among the age groups, experience groups and working units. Multiple regression tests show that age, income and WRQoL have a significant effect on CF. Based on the results, for a unit increase in WRQoL we expect a 0.26 unit decrease in CF. Analysis of variance results show that the emergency ward had changed the overall effect of WRQoL on CF, after the effect of WRQoL was controlled. Conclusions. Overall results from the present research indicated that, despite the high level of WRQoL among the studied nurses, the rate of CF was not at an appropriate level. Development of supportive and interventional strategies is highly recommended. 相似文献
47.