全文获取类型
收费全文 | 354篇 |
免费 | 14篇 |
国内免费 | 82篇 |
专业分类
安全科学 | 27篇 |
废物处理 | 23篇 |
环保管理 | 35篇 |
综合类 | 141篇 |
基础理论 | 68篇 |
环境理论 | 1篇 |
污染及防治 | 112篇 |
评价与监测 | 24篇 |
社会与环境 | 8篇 |
灾害及防治 | 11篇 |
出版年
2023年 | 6篇 |
2022年 | 23篇 |
2021年 | 13篇 |
2020年 | 10篇 |
2019年 | 14篇 |
2018年 | 18篇 |
2017年 | 14篇 |
2016年 | 16篇 |
2015年 | 15篇 |
2014年 | 28篇 |
2013年 | 35篇 |
2012年 | 33篇 |
2011年 | 28篇 |
2010年 | 18篇 |
2009年 | 20篇 |
2008年 | 23篇 |
2007年 | 18篇 |
2006年 | 17篇 |
2005年 | 13篇 |
2004年 | 15篇 |
2003年 | 10篇 |
2002年 | 10篇 |
2001年 | 4篇 |
2000年 | 4篇 |
1999年 | 8篇 |
1998年 | 5篇 |
1997年 | 4篇 |
1996年 | 4篇 |
1995年 | 2篇 |
1994年 | 1篇 |
1993年 | 2篇 |
1992年 | 4篇 |
1991年 | 3篇 |
1990年 | 3篇 |
1989年 | 2篇 |
1986年 | 1篇 |
1985年 | 3篇 |
1984年 | 1篇 |
1973年 | 1篇 |
1972年 | 1篇 |
排序方式: 共有450条查询结果,搜索用时 31 毫秒
441.
Haoran Dong Guangming Zeng Chang Zhang Jie Liang Kito Ahmad Piao Xu Xiaoxiao He Mingyong Lai 《环境科学学报(英文版)》2015
This study investigated the interaction between Cu2 + and nano zero-valent iron (NZVI) coated with three types of stabilizers (i.e., polyacrylic acid [PAA], Tween-20 and starch) by examining the Cu2 + uptake, colloidal stability and mobility of surface-modified NZVI (SM-NZVI) in the presence of Cu2 +. The uptake of Cu2 + by SM-NZVI and the colloidal stability of the Cu-bearing SM-NZVI were examined in batch tests. The results showed that NZVI coated with different modifiers exhibited different affinities for Cu2 +, which resulted in varying colloidal stability of different SM-NZVI in the presence of Cu2 +. The presence of Cu2 + exerted a slight influence on the aggregation and settling of NZVI modified with PAA or Tween-20. However, the presence of Cu2 + caused significant aggregation and sedimentation of starch-modified NZVI, which is due to Cu2 + complexation with the starch molecules coated on the surface of the particles. Column experiments were conducted to investigate the co-transport of Cu2 + in association with SM-NZVI in water-saturated quartz sand. It was presumed that a physical straining mechanism accounted for the retention of Cu-bearing SM-NZVI in the porous media. Moreover, the enhanced aggregation of SM-NZVI in the presence of Cu2 + may be contributing to this straining effect. 相似文献
442.
吴昊张城瑜倪珊珊罗彬彬王梦鸽魏雯敏陈裕坤赖钟雄 《应用与环境生物学报》2022,(4):1057-1065
植物光敏色素作用因子(phytochrome interacting factor,PIF)是广泛分布于植物体内的一种转录因子,在植物的生长发育方面有着重要的作用.基于香蕉基因组数据,对香蕉MaPIF基因家族进行基因组鉴定,采用生物信息学分析方法对其进行命名,分析理化性质、蛋白质结构、基因结构、启动子顺势作用元件以及构建系统进化树;分析PIF家族在不同激素处理下的表达情况.结果显示,香蕉MaPIF家族有7个成员,均含有高度保守的bHLH结构域;编码区长度在1 116-2001bp之间,至少包含5个内含子,且大部分位于细胞外;进化树结果可以发现与拟南芥、水稻以及玉米PIF的亲缘关系较近;顺式作用元件预测结果显示,MaPIF上存在多种与激素和光相关的响应元件.qRT-PCR结果显示,MaPIF3-1、MaPIF4、MaPIF4-1在生长素(IAA)、赤霉素(GA)、生长素抑制剂(NPA)处理中均有显著表达,除此之外,所有成员在脱落酸(ABA)处理下均有明显表达.本研究表明MaPIF在香蕉生长发育中激素调控有重要作用.(图7表3参45) 相似文献
443.
Yu Chunmu Chen Xiaojuan Li Ning Chen Jieming Yao Liang Zhou Yu Lu Kaihong Lai Yiqi Lai Xiangyu 《Environmental science and pollution research international》2022,29(54):81383-81395
Environmental Science and Pollution Research - Large amount of municipal sludge is difficult to handle; its resource utilization is an effective measure. In this study, the municipal sludge from... 相似文献
444.
Zhang Nan Lai Hui Ying Gautam Archana De Kwek Darien Yu Dong Yibing Wang Qiang Ng Kee Woei 《Journal of Polymers and the Environment》2022,30(3):1045-1054
Journal of Polymers and the Environment - Hair contains about 80% keratins and 1–3% melanin packaged in melanosomes. Both of these are high-value and functional raw materials that have... 相似文献
445.
3-Dehydroquinic acid dehydrase/shikimate dehydrogenase (DHD/SDH) is the only bifunctional enzyme in the shikimic acid pathway. It can catalyze the generation of shikimic acid and gallic acid. To investigate the expression and regulation patterns of DHD/SDH in tea, we aimed to determine (1) the miRNA-mediated cleavage of DHD/SDH involved in the shikimic acid pathway, (2) the expression pattern of miRNA and their targets, and (3) the expression pattern of three DHD/SDH genes in tea plant (Camellia sinensis) with different hormone treatments via online prediction, RLM-RACE, and qPCR. Based on the miRNAs obtained, we identified four miRNAs that regulated CsDHD/SDH in tea. CsDHD/SDH2 was targeted by miR5180b, miR1510b-5p, and miR24; CsDHD/SDH3 was targeted by miR868-5p. We also found that CsDHD/SDH2 and CsDHD/SDH3 have a similar expression pattern under different hormone treatments, and they were synergistic with each other. CsDHD/SDH1 exhibited an expression pattern opposite to that of the other two homologues, and increased expression of CsDHD/SDH1 reduced the expression of the other two genes. © 2018 Science Press. All rights reserved. 相似文献
446.
Gao Yuan Fan Keyu Lai Zini Wang Chao Li Haiyan Liu Qianfu 《Environmental science and pollution research international》2022,29(21):30935-30953
Environmental Science and Pollution Research - Nowadays, the extensive application of microplastics (MPs) has led to the gradual accumulation of toxicity in aquatic environment and caused potential... 相似文献
447.
Yao Yuanyuan Pan Yuqi Yu Yanxi Yu Zixun Lai Leo Liu Fangzhou Wei Li Chen Yuan 《Environmental Chemistry Letters》2022,20(6):3837-3859
Environmental Chemistry Letters - Fenton processes allow to degrade and mineralize toxic organic contaminants, yet classical Fenton processes require continuously adding hydrogen peroxide and... 相似文献
448.
Qiao Pengwei Lai Donglin Yang Sucai Zhao Qianyun Wang Hengqin 《Environmental science and pollution research international》2022,29(23):33945-33956
Environmental Science and Pollution Research - The prediction accuracy of the spatial distribution of soil pollutants at a site is relatively low. Related pollutants can be used as auxiliary... 相似文献
449.
Radwan Mohammed K. H. Onn Chiu Chuen Mo Kim Hung Yap Soon Poh Chin Ren Jie Lai Sai Hin 《Environment, Development and Sustainability》2022,24(4):4751-4785
Environment, Development and Sustainability - Coal fly ash and granulated ground blast furnace slag (GGBS) are more widely used as supplementary cementitious materials in cement production. This... 相似文献
450.
Lai Aolin Yang Zhihui Cui Lianbiao 《Environmental science and pollution research international》2022,29(7):10157-10172
Environmental Science and Pollution Research - While local protectionism and market segmentation owing to fiscal decentralization are not conducive to broad economic development, they may be... 相似文献