全文获取类型
收费全文 | 241篇 |
免费 | 4篇 |
国内免费 | 5篇 |
专业分类
安全科学 | 12篇 |
废物处理 | 28篇 |
环保管理 | 19篇 |
综合类 | 27篇 |
基础理论 | 26篇 |
污染及防治 | 94篇 |
评价与监测 | 29篇 |
社会与环境 | 13篇 |
灾害及防治 | 2篇 |
出版年
2023年 | 3篇 |
2022年 | 32篇 |
2021年 | 17篇 |
2020年 | 14篇 |
2019年 | 6篇 |
2018年 | 7篇 |
2017年 | 10篇 |
2016年 | 9篇 |
2015年 | 8篇 |
2014年 | 15篇 |
2013年 | 33篇 |
2012年 | 7篇 |
2011年 | 13篇 |
2010年 | 8篇 |
2009年 | 4篇 |
2008年 | 10篇 |
2007年 | 12篇 |
2006年 | 9篇 |
2005年 | 1篇 |
2004年 | 4篇 |
2003年 | 7篇 |
2002年 | 6篇 |
2000年 | 1篇 |
1999年 | 2篇 |
1997年 | 1篇 |
1996年 | 1篇 |
1995年 | 1篇 |
1994年 | 1篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1988年 | 2篇 |
1984年 | 1篇 |
1982年 | 1篇 |
1978年 | 1篇 |
1963年 | 1篇 |
排序方式: 共有250条查询结果,搜索用时 62 毫秒
31.
Radon exhalation from building materials for decorative use 总被引:2,自引:0,他引:2
Jing Chen Naureen M. Rahman Ibrahim Abu Atiya 《Journal of environmental radioactivity》2010,101(4):317-322
Long-term exposure to radon increases the risk of developing lung cancer. There is considerable public concern about radon exhalation from building materials and the contribution to indoor radon levels. To address this concern, radon exhalation rates were determined for 53 different samples of drywall, tile and granite available on the Canadian market for interior home decoration. The radon exhalation rates ranged from non-detectable to 312 Bq m−2 d−1. Slate tiles and granite slabs had relatively higher radon exhalation rates than other decorative materials, such as ceramic or porcelain tiles. The average radon exhalation rates were 30 Bq m−2 d−1 for slate tiles and 42 Bq m−2 d−1 for granite slabs of various types and origins. Analysis showed that even if an entire floor was covered with a material having a radon exhalation rate of 300 Bq m−2 d−1, it would contribute only 18 Bq m−3 to a tightly sealed house with an air exchange rate of 0.3 per hour. Generally speaking, building materials used in home decoration make no significant contribution to indoor radon for a house with adequate air exchange. 相似文献
32.
33.
34.
35.
36.
Ibrahim Sheikh AK Radin Umar RS Habshah M Kassim H Stevenson M Ahmed H 《Traffic injury prevention》2006,7(2):150-154
OBJECTIVE: In developing countries, motorcycle use has grown in popularity in the past decades. Commensurate with this growth is the increase in death and casualties among motorcyclists in these countries. One of the strategic programs to minimize this problem is to reduce motorcyclists exposure by shifting them into safer modes of transport. This study aims to explore the differences in the characteristics of bus and motorcycle users. It identifies the factors contributing to their choice of transport mode and estimates the probability that motorcyclists might change their travel mode to a safer alternative; namely, bus travel. METHODS: In this article, a survey of 535 motorcycle and bus users was conducted in seven districts of Selangor state, Malaysia. A binary logit model was developed for the two alternative modes, bus and motorcycle. RESULTS: It was found that travel time, travel cost, gender, age, and income level are significant in influencing motorcyclists' mode choice behavior. The probability of motorcycle riders shifting to public transport was also examined based on a scenario of a reduction in bus travel time and travel cost. CONCLUSIONS: Reduction of total travel time for the bus mode emerges as the most important element in a program aimed at attracting motorcyclists towards public transport and away from the motorcycle mode. 相似文献
37.
Ibrahim Adham Taib Andrew S McIntosh Carlo Caponecchia Melissa T. Baysari 《Safety Science》2012,50(9):1801-1805
Medical error taxonomies are used to report and analyse patient safety incidents. Medical error taxonomies can be generic or domain-specific. In comparing generic and domain-specific medical error taxonomies, the literature compares the information both type of taxonomies classify. There is little evidence the taxonomies have been compared in terms of usability and reliability. Twenty nurses and 21 pharmacists participated in a study comparing the usability and reliability of a generic medical error taxonomy and a medication error taxonomy. The medical error taxonomies utilized were the Patient Safety Event Taxonomy and the NCC MERP Taxonomy of Medication Error. The study found no significant difference in the usability ratings of both taxonomies. The taxonomies required different amount of time to classify patient safety incidents and had significantly different reliability levels. The reliability of the NCC MERP Taxonomy of Medication Error was significantly different when used by nurses and pharmacists. The taxonomy was also preferred by the majority of participants. Some recommendations are made about the design of future medical error taxonomies. 相似文献
38.
Shakoor Adeel Khan Asim Laeeq Akhter Parveen Aslam Muhammad Bilad Muhammad Roil Maafa Ibrahim M. Moustakas Konstantinos Nizami Abdul-Sattar Hussain Murid 《Environmental science and pollution research international》2021,28(10):12397-12405
Environmental Science and Pollution Research - Mixed matrix membranes (MMMs) were fabricated by the hydrothermal synthesis of ordered mesoporous KIT-6 type silica and incorporating in polyimide... 相似文献
39.
A Study of Plant Species Extinction in Singapore: Lessons for the Conservation of Tropical Biodiversity 总被引:5,自引:0,他引:5
I.M. Turner H.T.W. Tan Y.C. Wee Ali Bin Ibrahim P.T. Chew R.T. Corlett 《Conservation biology》1994,8(3):705-712
The native vascular plant flora of the Republic of Singapore has suffered the extinction of 594 out of a total 2277 species. These represent local, not global, species extinctions. Coastal habitats, including mangroves, have lost 39% of their species, while inland forests have last 29%. Epiphytic species (62% loss) appear particularly prone to extinction, which is reflected in a similar disposition exhibited by the Orchidaceae. Deforestation and disturbance have been the main cause of plant species extinction in Singapore. The rich mangrove epiphyte flora has been totally exterminated, and a number of tree species are reduced to populations of a few mature individuals. Many more species continue to survive than the species-area relationship would predict given the 99.8% loss of primary forest. This is interpreted as a result of the failure of equilibrium to be achieved yet in the remnant forest fragments, even after more than a century of isolation. Singapore's secondary forests appear to accrete plant diversity very slowly, even if contiguous with primary forest areas. We conclude that remnant fragments of primary tropical forest, even of very small size, can play a major role in the conservation of tropical biodiversity. The patterns of extinction observed in Singapore indicate that coastal and estuarine sites are in greatest demand for development and therefore must be given high priority for conservation despite their somewhat lower biodiversity. Epiphyte and orchid diversity appear to be very good indicators of the degree of disturbance suffered by a habitat in the humid tropics. 相似文献
40.
Egyptian coastlines comprise more than 3000 km along the Mediterranean and the Red Sea. The coastal area of Egypt is under
severe and increasing pressure. After passing the law on the Environment (Law 4) in 1994, the Egyptian Environmental Affairs
Agency (EEAA) was designated as the responsible agency to implement this law. In this respect, the EEAA formulates the general
policy and prepares the necessary plans for the protection and promotion of the environment. Also, it follows up the implementation
of such plans in coordination with competent administrative authorities. Integrated Coastal Zone Management (ICZM) is one
of the items regulated and addressed by Law 4/94. A framework programme for ICZM in Egypt was issued in 1996. This paper presents
the results of a pilot project financed by the Mediterranean Action Programme Coastal Area Management (CAMP), namely ‘Fuka-Matrouh-Egypt’
project, and implemented by the Priority Action Plan/Regional Activity Centre. It also presents the methodology followed in
the study and the experience gained nationally that would lead to the sustainable development of the northwest Egyptian Coast. 相似文献