全文获取类型
收费全文 | 146篇 |
免费 | 13篇 |
国内免费 | 38篇 |
专业分类
安全科学 | 26篇 |
废物处理 | 14篇 |
环保管理 | 7篇 |
综合类 | 78篇 |
基础理论 | 3篇 |
污染及防治 | 29篇 |
评价与监测 | 2篇 |
社会与环境 | 4篇 |
灾害及防治 | 34篇 |
出版年
2023年 | 2篇 |
2022年 | 2篇 |
2021年 | 7篇 |
2020年 | 4篇 |
2019年 | 5篇 |
2018年 | 3篇 |
2016年 | 9篇 |
2015年 | 2篇 |
2014年 | 8篇 |
2013年 | 12篇 |
2012年 | 13篇 |
2011年 | 7篇 |
2010年 | 6篇 |
2009年 | 8篇 |
2008年 | 1篇 |
2007年 | 11篇 |
2006年 | 13篇 |
2005年 | 15篇 |
2004年 | 10篇 |
2003年 | 11篇 |
2002年 | 8篇 |
2001年 | 4篇 |
2000年 | 5篇 |
1999年 | 4篇 |
1998年 | 7篇 |
1997年 | 6篇 |
1996年 | 3篇 |
1995年 | 4篇 |
1994年 | 2篇 |
1992年 | 2篇 |
1991年 | 1篇 |
1984年 | 1篇 |
1982年 | 1篇 |
排序方式: 共有197条查询结果,搜索用时 328 毫秒
91.
旋风分离器分离段表状探讨 总被引:3,自引:0,他引:3
传统的旋风分离器,由于其分离段形成的内旋气流太混乱,而且剧烈湍动,致使在沉降段已和气体分离的尘粒在分离段中又改变运行方向,重新与气体混在一起,因而除尘效果不理想,为了找到改善分离效果的办法,本文对尘粒的运行过程作数学分析,并对提高除尘效率的旋风分离器分离段形状进行了探讨。 相似文献
92.
从分析现行技术治理立窑烟尘现状着手,研制一种立窑烟尘和有害气体综合治理的新技术和新设备--双重调节分流口式组合分离器.实验结果表明,双重调节分流口式组合分离器有较高的捕集细粉能力,用近于旋风收尘器的成本,收到近于袋收尘的除尘效果,再施予一定的荷湿条件,能综合治理立窑烟尘和有害气体. 相似文献
93.
热带气旋灾害等级预评估方法初探 总被引:1,自引:0,他引:1
利用1982-2009年期间48个影响青田县的热带气旋全县灾情记录,选用相应过程全县经济损失占当年GDP的比例和死亡人数作为衡量热带气旋影响程度的主要因子,计算了每个历史过程的灾情指数;再以灾情指数为样本,以对应过程的全县过程平均雨量、过程最大雨量、日最大雨量、最大风速为因子,通过多元线性回归建立了回归方程,为热带气旋影响灾害预评估提供一种参考依据。 相似文献
94.
95.
This paper investigates the impacts of Tropical Cyclone Winston (2016) on rural Indo-Fijians and their response to the devastation. Studies have previously examined how rural communities in Pacific Island countries respond to severe climatic events, arguing that traditional knowledge of the climate, together with indigenous techniques, contribute substantially to recovery from a disaster. Strong communal bonds have also been identified as an influencing factor. Disaster risk reduction frameworks often assume the availability of such knowledge and capital. Yet, little research has been done on how minority groups with limited access to such knowledge and capital cope with disaster-related damage. The current study shows that rural Indo-Fijians responded to the consequences of Tropical Cyclone Winston differently to indigenous Fijians, owing to relatively limited access to traditional awareness of the climate, communal labour sharing, and intra- and/or inter-community networks. The findings point to the necessity to implement a more inclusive disaster risk reduction framework. 相似文献
96.
我国的主要气象灾害及其经济损失 总被引:20,自引:0,他引:20
自然灾害一直伴随着人类社会的生产、生活与发展,气象灾害尤甚,它们给人类社会造成的经济损失十分巨大。根据中国气象局资料统计,在各类自然灾害中,气象灾害大约占到70%以上。我国每年重大气象灾害影响的人口大约达4亿人次,所造成的经济损失大约占到国民生产总值的1%~3%。近半个世纪以来,发生在我国的重大气象灾害,受灾人口常高达数亿人次,造成的直接经济损失高达数千亿元。为此,对包括热带气旋、干旱、洪涝、低温冷冻和雪灾等我国的主要气象灾害及其经济损失的总体概况,进行了总结和归纳,可作为了解和认识我国气象灾害及其经济与社会影响的参考依据。 相似文献
97.
《Environmental Hazards》2013,12(4):263-277
Knowledge about natural hazard management has increased significantly since Gilbert White's seminal research in 1945, yet people are still badly affected by natural hazards. A key question remains in natural hazards research: why, when all the conditions for effective disaster risk reduction are in place, do some people not take action to reduce their risk of harm? Through a questionnaire-based study we investigated the motivating factors that led residents of the Cayman Islands to prepare for annual tropical cyclones (hurricanes). Factors that increase the likelihood of individuals preparing for hurricanes are: previous experience of major storms, having linking networks and ties, having a child under the age of 15 in the home, and residency status—expatriate residents are less likely to prepare. Factors that appear to prevent adaptive behaviour include: living close to or adjacent to the coast, recent migration to the islands, and living in rented accommodation. The findings of the survey confirm that even within societies that are well prepared for tropical cyclones, there are still sub-groups who do not engage with the preparedness process. In the case of the Cayman Islands, new migrants are the most vulnerable to tropical cyclones as they tend to fall into the demographic groups least likely to prepare for cyclones, live in locations with high levels of exposure to cyclone impacts, and interact mostly with other expatriates with no previous experience of cyclone impacts. As climate change promises to bring an increasing intensity of tropical cyclones, these findings have relevance for all islands which draw on migrant workers to support economic growth. 相似文献
98.
The 1970 Bhola cyclone,nationalist politics,and the subsistence crisis contract in Bangladesh 下载免费PDF全文
Naomi Hossain 《Disasters》2018,42(1):187-203
The devastating Bhola cyclone in November 1970 is credited with having triggered the political events that led to the division of Pakistan and the creation of Bangladesh in 1971. A callous response to the disaster by the Pakistani regime resulted in a landslide electoral victory for Bengali nationalists, followed by a bitter and bloody civil war. Yet, despite its political momentousness, the Bhola cyclone has been the subject of little political analysis. This paper examines the events, arguing that its extraordinary political significance put disaster management on the nationalist agenda; the famine of 1974 confirmed its centrality, producing a social contract to protect the population against disasters and subsistence crises on which the country's acclaimed resilience to the effects of climate change rests. The Bhola cyclone also drew international attention to this neglected, little‐known region, and in general can be seen as foundational for the subsequent developmental achievements of Bangladesh. 相似文献
99.
Chao Pang Chunhua He Zhenhu Hu Shoujun Yuan Wei Wang 《Frontiers of Environmental Science & Engineering》2019,13(4):50
100.
杨洪旭 《中国安全科学学报》2005,15(8):57-60
胜利油田海上边际油井受环境条件的制约,安装采油的油气分离装置也较简单;由此产出的原油中含有20%天然气进入油轮,给整个采油的油轮带来危险并给操作人员带来危害。在采油油轮上增设油气处理装置后,既改善了油轮操作人员的工作环境,消除了油轮事故隐患,又节约了在原平台上增设油气分离设施的费用,保护了采油油轮操作者的安全与健康,保障了安全生产。笔者依据胜利油田海上采油油轮的生产作业状况,论述在采油油轮上增设油气分离装置的必要性,并对所增设的设备及施工条件作了初步探讨。同时还论证了海上采油油轮增设油气分离装置,是改善操作人员的工作环境和消除事故隐患的必要措施。 相似文献