全文获取类型
收费全文 | 149篇 |
免费 | 1篇 |
国内免费 | 7篇 |
专业分类
安全科学 | 1篇 |
废物处理 | 25篇 |
环保管理 | 6篇 |
综合类 | 31篇 |
基础理论 | 17篇 |
污染及防治 | 61篇 |
评价与监测 | 10篇 |
社会与环境 | 5篇 |
灾害及防治 | 1篇 |
出版年
2023年 | 3篇 |
2022年 | 6篇 |
2021年 | 2篇 |
2020年 | 1篇 |
2019年 | 2篇 |
2018年 | 6篇 |
2017年 | 6篇 |
2016年 | 6篇 |
2015年 | 6篇 |
2014年 | 9篇 |
2013年 | 10篇 |
2012年 | 12篇 |
2011年 | 17篇 |
2010年 | 3篇 |
2009年 | 9篇 |
2008年 | 7篇 |
2007年 | 9篇 |
2006年 | 5篇 |
2005年 | 6篇 |
2004年 | 5篇 |
2003年 | 5篇 |
2002年 | 6篇 |
2001年 | 1篇 |
1998年 | 1篇 |
1995年 | 1篇 |
1994年 | 1篇 |
1993年 | 1篇 |
1991年 | 1篇 |
1989年 | 1篇 |
1987年 | 1篇 |
1985年 | 1篇 |
1984年 | 3篇 |
1982年 | 2篇 |
1981年 | 1篇 |
1978年 | 1篇 |
排序方式: 共有157条查询结果,搜索用时 31 毫秒
91.
Motoharu Suzuki Chisato Matsumura Takeshi Nakano Hiromasa Imaishi 《Environmental science and pollution research international》2012,19(9):3959-3968
Di-isopropylnaphthalene (DIPN) has highly persistent and bioaccumulative properties, and a large amount of DIPN is used as a PCB substitute in Japan. However, DIPN in the environment has not been thoroughly investigated. In addition, mono-isopropylnaphthalene (MIPN) and tri-isopropylnaphthalene (TIPN), which are the homologues of DIPN, have similar properties to DIPN. In this study, simultaneous analytical methods for MIPN, DIPN, and TIPN for air, environmental water, sediment, and biological samples were developed, and the resultant contamination caused by each in the environment was investigated. DIPN was detected at 1.1?±?0.38?ng/m3 in air and between <?1.9 and 9.8?ng/L in river water, but MIPN and TIPN were not. In Lateolabrax japonicas (Japanese sea perch), TIPN was detected from only females at between 0.65 and 1.4?ng/g-wet. DIPN was detected from all perches at between 1.2 and 3.4?ng/g-wet. DIPN and TIPN isomer fingerprints in females were different from those in the reference standard stock solution ones. In sediments, MIPN, DIPN, and TIPN were detected at between <?0.16 and 8.6?ng/g-dry, between <?1.1 and 4400?ng/g-dry, and between <?0.83 and 500?ng/g-dry, respectively. The contamination trend of DIPN in the sediments was similar to that of PCBs. 相似文献
92.
93.
Nascimento Leonardo Kuramochi Takeshi Höhne Niklas 《Mitigation and Adaptation Strategies for Global Change》2022,27(6):1-19
Mitigation and Adaptation Strategies for Global Change - Climate adaptation is seen by many as increasingly important and as deeply political, leading some to argue for its democratization. Social... 相似文献
94.
Takeshi?TakegakiEmail author Takashi?Kaneko Yukio?Matsumoto 《Die Naturwissenschaften》2012,99(4):285-289
Sneaking tactic, a male alternative reproductive tactic involving sperm competition, is generally adopted by small individuals
because of its inconspicuousness. However, large size has an advantage when competition occurs between sneakers for fertilization
of eggs. Here, we suggest that both large- and small-size advantages of sneaker males are present within the same species.
Large sneaker males of the dusky frillgoby Bathygobius fuscus showed a high success rate in intruding into spawning nests because of their advantage in competition among sneaker males
in keeping a suitable position to sneak, whereas small sneakers had few chances to sneak. However, small sneaker males were
able to stay in the nests longer than large sneaker males when they succeeded in sneak intrusion. This suggests the possibility
of an increase in their paternity. The findings of these size-specific behavioural advantages may be important in considering
the evolution of size-related reproductive traits. 相似文献
95.
96.
97.
The amino acid sequence of a peptide containing an active serine was examined with poly(3-hydroxybutyrate) (PHB) depolymerase ofAlcaligenes faecalis T1. The sequence Cys-Asn-Ala-Trp-Ala-Gly-Ser-Asn-Ala-Gly-Lys was obtained. This amino acid sequence around the active serine does not fit any reported sequence of other esterases and proteases. On the other hand, a segment of the amino acid sequence of PHB depolymerase ofA. faecalis was homologous to the type III sequence of fibronectin. Similar sequences have been reported in some type of bacterial chitinase and cellulases, and PHB depolymerase seems to have an overall similarity to these bacterial extracellular hydrolases. 相似文献
98.
Cyanogen chloride was formed by the reactions of purine bases(adenine and guanine) with hypochlorous acid in the presence of ammonium ion. The origin of the carbon and nitrogen atoms of cyanogen chloride formed from adenine was investigated by use of synthetic adenines variously labeled with the isotope of nitrogen(15N) or carbon(13C). 相似文献
99.
The extensive use of the broad range of pesticides employed to maintain golf courses has prompted serious environmental concerns in Japan since courses tend to be located in mountainous regions, often in close proximity to virgin water sources. Since older empirical methods are not appropriate for substance identification and determination of substance concentrations on the ppb order, gas chromatographyquadrupole mass spectrometry (GC/QPMS) can be employed. A simple extraction of 500 ml of drainage pond water gives a sample which allows identification of pesticides with quantitation on the ppb order using selected ion monitoring (SIM). A sample of drainage pond water from a golf course revealed fenitrothion, funitrothion, chlorothalonil and isoprothiolane in concentrations of 120.1, 20.7, 45.6 and 130.5 ppb, respectively. 相似文献
100.