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241.
Gang Xiao Baosheng Jin Mingjiang Ni Kefa Cen Yong Chi Zhongxin Tan 《Frontiers of Environmental Science & Engineering》2011,5(2):193-204
Considering high-moisture municipal solid waste (MSW) of China, a steam dried MSW gasification and melting process was proposed, the feasibility was tested, and the mass and energy balance was analyzed. Preliminary experiments were conducted using a fixed-bed drying apparatus, a 200 kg per day fluidized-bed gasifier, and a swirl melting furnace. Moisture percentage was reduced from 50% to 20% roughly when MSW was dried by slightly superheated steam of 150°C?C350°C within 40 min. When the temperature was less than 250°C, no incondensable gas was produced during the drying process. The gasifier ran at 550°C?C700°Cwith an air equivalence ratio (ER) of 0.2?C0.4. The temperature of the swirl melting furnace reached about 1240°C when the gasification ER was 0.3 and the total ER was 1.1. At these conditions, the fly ash concentration in the flue gas was 1.7 g·(Nm3)?1, which meant over 95% fly ash was trapped in the furnace and discharged as slag. 85% of Ni and Cr were bound in the slag, as well as 60% of Cu. The mass and energy balance analysis indicates that the boiler heat efficiency of an industrial MSW incineration plant reaches 86.97% when MSW is dried by steam of 200°C. The boiler heat efficiency is sensitive to three important parameters, including the temperature of preheated MSW, the moisture percentage of dried MS Wand the fly ash percentage in the total ash. 相似文献
242.
243.
Chen Zailin Huang Yi Cheng Xin Ni Shijun Wang Jinjin Ren Bangzheng Yu Qiulian 《Environmental science and pollution research international》2021,28(2):1850-1865
Environmental Science and Pollution Research - We attempt to understand the pollution characteristics and carcinogenic risk of toxic elements around Hutou Village, Xuanwei City, Yunnan Province,... 相似文献
244.
Hu Xueyuan Sun Han Luo Xi Ni Shan Yan Yingying 《Environmental science and pollution research international》2021,28(36):49559-49573
Environmental Science and Pollution Research - In recent years, severe air pollution has had a serious impact on the health and economy of residents and has attracted great attention. Due to the... 相似文献
245.
Hadj cherif Houda Chen Zhenling Ni Guohua 《Environmental science and pollution research international》2021,28(46):65499-65512
Environmental Science and Pollution Research - This paper explores the complex nexus between the global oil prices and the food prices of the Middle East and North Africa (MENA) region during the... 相似文献
246.
Tien-Chin Chang Shih-Piao Ni Kuo-Shuh Fan Ching-Hwa Lee 《Waste management & research》2006,24(3):275-282
Before implementing the self-monitoring model programme of the Basel Convention in the Asia, Taiwan has conducted a comprehensive 4-year follow-up project to visit the governmental authorities and waste-disposal facilities in the countries that import waste from Taiwan. A total of nine treatment facilities, six of which are reported in this paper, and the five countries where the plants are located were visited in 2001-2002. France, Belgium and Finland primarily handled polychlorinated biphenyl capacitors, steel mill dust and metal waste. The United States accepted metal sludge, mainly electroplating sludge, from Taiwan. Waste printed circuit boards, waste wires and cables, and a mixture of waste metals and electronics were the major items exported to China. Relatively speaking, most treatment plants for hazardous waste paid close attention to environmental management, such as pollution control and monitoring, site zoning, system management regarding occupational safety and hygiene, data management, permits application, and image promotion. Under the tight restrictions formulated by the central environment agency, waste treatment plants in China managed the environmental issues seriously. For example, one of the treatment plants had ISO 14001 certification. It is believed that with continuous implementation of regulations, more improvement is foreseeable. Meanwhile, Taiwan and China should also continuously enhance their collaboration regarding the transboundary management of hazardous waste. 相似文献
248.
对构建以本质安全为主体的煤矿安全文化体系的探讨——兼论徐州矿务集团创建本质安全型企业的实践 总被引:8,自引:3,他引:5
倪文耀 《中国安全科学学报》2003,13(9):65-68
简要介绍了安全文化的起源、基本概念 ,对煤矿安全文化、本质安全给予了定义。较系统地论述了本质安全的哲学思想。从煤矿行业特征、实践“三个代表”、全面建设小康社会、应对WTO的挑战、现有条件等方面重点阐明了煤矿安全文化体系应以本质安全为主体内容。并以徐州矿务集团有限公司开展“创建本质安全型企业”活动的具体实践 ,说明了应如何在煤矿企业推行以本质安全为主体的煤矿安全文化。 相似文献
249.
长江滩地资源调查与开发研究 总被引:1,自引:1,他引:0
李劲峰 《长江流域资源与环境》1997,6(3):216-218
利用先进的遥感技术对滩地资源进行调查,可以直接准确地圈定滩地的范围及其土壤性质。本文以遥感技术为基础提出了长江滩地的综合开发模式。 相似文献
250.
Yan Ding Han Jiang Hefeng Zhang Mingliang Fu Zhihui Huang Hong Ni Hang Yin 《环境科学学报(英文版)》2023,123(1):460-475
In recent years, great efforts have been devoted to reducing emissions from mobile sources with the dramatic growth of motor vehicle and nonroad mobile source populations. Compilation of a mobile source emission inventory is conducive to the analysis of pollution emission characteristics and the formulation of emission reduction policies. This study summarizes the latest compilation approaches and data acquisition methods for mobile source emission inventories. For motor vehicles, a high-resolution emission inventory can be developed based on a bottom-up approach with a refined traffic flow model and real-world speed-coupled emission factors. The top-down approach has advantages when dealing with macroscale vehicle emission estimation without substantial traffic flow infrastructure. For nonroad mobile sources, nonroad machinery, inland river ships, locomotives, and civil aviation aircraft, a top-down approach based on fuel consumption or power is adopted. For ocean-going ships, a bottom-up approach based on automatic identification system (AIS) data is adopted. Three typical cases are studied, including emission reduction potential, a cost-benefit model, and marine shipping emission control. Outlooks and suggestions are given on future research directions for emission inventories for mobile sources: building localized emission models and factor databases, improving the dynamic updating capability of emission inventories, establishing a database of emission factors of unconventional pollutants and greenhouse gas from mobile sources, and establishing an urban high temporal-spatial resolution volatile organic compound (VOC) evaporation emission inventory. 相似文献