全文获取类型
收费全文 | 146篇 |
免费 | 15篇 |
国内免费 | 1篇 |
专业分类
安全科学 | 32篇 |
废物处理 | 2篇 |
环保管理 | 41篇 |
综合类 | 32篇 |
基础理论 | 10篇 |
污染及防治 | 3篇 |
评价与监测 | 10篇 |
社会与环境 | 20篇 |
灾害及防治 | 12篇 |
出版年
2023年 | 1篇 |
2022年 | 4篇 |
2021年 | 3篇 |
2020年 | 6篇 |
2019年 | 7篇 |
2018年 | 3篇 |
2017年 | 12篇 |
2016年 | 7篇 |
2015年 | 4篇 |
2014年 | 8篇 |
2013年 | 11篇 |
2012年 | 9篇 |
2011年 | 10篇 |
2010年 | 3篇 |
2009年 | 8篇 |
2008年 | 4篇 |
2007年 | 13篇 |
2006年 | 7篇 |
2005年 | 13篇 |
2004年 | 5篇 |
2003年 | 4篇 |
2002年 | 2篇 |
2001年 | 1篇 |
2000年 | 3篇 |
1999年 | 4篇 |
1998年 | 1篇 |
1997年 | 2篇 |
1996年 | 4篇 |
1994年 | 1篇 |
1993年 | 1篇 |
1985年 | 1篇 |
排序方式: 共有162条查询结果,搜索用时 764 毫秒
71.
72.
《Environmental Hazards》2013,12(4):298-312
Despite the fact that one of the main reasons for business discontinuity after the shock of a natural disaster is lifeline outages, individual preparedness and recovery efforts have been given priority. This paper focuses on the significance of lifeline services for business continuity in order to highlight the necessity for collective action to achieve community recovery. Post-disaster research was conducted on a sample of business survivors in the town of Adapazari, which was severely affected by an earthquake in 1999. The study looked into the dependence of businesses on various infrastructure systems and the effects on those businesses of lifeline outages. The findings of the study address the need for community-level actions that are beyond the capability of any individual firm and which will ensure the continuity of business. 相似文献
73.
调研已开发的包括吡虫啉、噻虫嗪、噻虫胺、啶虫脒、噻虫啉、呋虫胺、烯啶虫胺、环氧虫啶、氯噻啉、哌虫啶和氟啶虫胺腈在内的11种新烟碱类农药在我国的登记现状。根据已登记的新烟碱农药的使用方法,开展了不同暴露场景下蜜蜂的初级风险评估。结果表明,喷施场景下,吡虫啉、噻虫嗪、噻虫胺、烯啶虫胺、呋虫胺、氟啶虫胺腈和氯噻啉这7种新烟碱类农药在不同作物上使用对蜜蜂的风险商值均大于1,风险均不可接受;啶虫脒、哌虫啶和噻虫啉在所有登记作物上使用对蜜蜂的风险商值均小于1,风险可接受。土壤或种子处理场景下,除噻虫啉外,其余4种新烟碱类农药包括吡虫啉、噻虫胺、噻虫嗪和呋虫胺对蜜蜂的风险商值均大于1,风险均不可接受。评估结果可为新烟碱类农药在我国的登记管理提供科学参考。 相似文献
74.
Beatrice B. Lackaff Bruce J. Hunt Ian E. Von Essen 《Journal of the American Water Resources Association》1993,29(6):949-955
ABSTRACT: U.S. Environmental Protection Agency (EPA) statutes require identification of all potential sources of contamination within a wellhead protection area. All wells over Spokane County's aquifer are included in one wellhead protection zone called the Aquifer Sensitive Area (ASA). A GIS-based Contaminant Source Inventory (CSI) was developed for the ASA. Datasets listing businesses and agencies within the ASA were imported into the GIS from state, county, city, and local agencies. These datasets were selected, joined, and sorted using GIS relational database capabilities into one ASA “business master file.” Map files were projected and transformed into common coordinates. Next, business sites within the master file were spatially related by address to the digital map files. Likely Critical Materials Users (CMU) were identified by sorting on selected standard Industrial Codes (SIC). Additional files of CMUs were imported into the Contaminant Source Inventory. GIS queries were performed to locate specific materials, quantities, and storage facilities, and to analyze CMU activity within selected buffer zones. This project demonstrated the usefulness of GIS technology in the development, management, maintenance, and analysis of vast quantities of data associated with a local wellhead protection pro. gram. 相似文献
75.
当代大学生就业难的道德困境 总被引:1,自引:0,他引:1
在当前社会主义市场经济环境下,如何引导好大学毕业生树立正确的就业观,如何平衡功利主义与责任意识、享乐思想与奉献精神之间的关系,如何在企业需求与学校人才培养模式之间形成良性互动,是当前大学教育工作面临的重要课题。充分调动政府、社会、企业、学校各自资源的力量,是解决当代大学生就业困境的重要出路。 相似文献
76.
本文结合现代管理思想,对如何促进环境信息化与环保业务相互融合进行思考,通过对两者关系的比较论证与作用分析,指出业务流程管理、管理模式创新以及环境信息化是实现环境管理转型、促进环保事业发展、推进环境保护现代化的有效途径。 相似文献
77.
回顾和总结了我国危险化学品登记制度的建立和发展过程,对目前危险化学品登记管理的现状和存在问题进行了分析并提出改革建议。 相似文献
78.
This paper presents a new perspective on the reuse businesses of independent reuse business companies (IRBCs) in Japan. A majority of previous studies on reuse and remanufacturing have focused on the businesses of original equipment manufacturers (OEMs). During the past twenty years, however, in Japan, IRBCs have grown rapidly, especially those that launched new types of secondhand shops. The author proposes that the reuse businesses of IRBCs can provide useful information for academics, OEMs, and policy makers. A key finding is the strategies developed by IRBCs to ensure the volume of used products collected and to stimulate demand for used products. This paper compares the features of IRBC reuse businesses with those of OEMs, and discussed the results and implications of an interview survey with select IRBCs. 相似文献
79.
80.