机构

• 近代物理研究所 [2]
• 地质与地球物理研究所 [1]
• 烟台海岸带研究所 [1]

采集方式

• OAI收割 [4]

内容类型

• 期刊论文 [4]

发表日期

• 2022 [1]
• 2019 [1]
• 2001 [1]
• 2000 [1]

学科主题

筛选

浏览/检索结果: 共4条，第1-4条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择提交时间升序提交时间降序发表日期升序发表日期降序题名升序题名降序作者升序作者降序 Geochemical and Isotopic Characteristics of Two Geothermal Systems at the Nanpu Sag, Northern Bohai Bay Basin 期刊论文  OAI收割 FRONTIERS IN EARTH SCIENCE, 2022, 卷号: 10, 页码: 13 作者:  Wang, Ke;  Hua, Cong;  Ren, Lu;  Kong, Yanlong;  Sun, Wenjie   |  收藏  |  浏览/下载：25/0  |  提交时间：2022/07/07 hydrothermal energy  geochemical characteristic  isotopic characteristic  two geothermal systems  conceptual model  nanpu sag   碳氮稳定同位素比值在潮间带大型底栖动物组织间差异性研究 期刊论文  OAI收割 海洋学报, 2019, 卷号: 41, 期号: 4, 页码: 74-82 作者:  李宝泉   |  收藏  |  浏览/下载：14/0  |  提交时间：2020/06/17 潮间带  大型底栖动物  碳氮稳定同位素  食源和营养级分析  采样部位选取  intertidal zone  macrobenthos  carbon and nitrogen stable isotopes  food sources and trophic levels study,sampling parts  The technique of stable isotope analysis has been widely applied for the field of food web studies in recent years.However,few researches concerned about the impacts of different tissues used for analysis on the food web building.With the purpose of accuracy and comparability in the food web studies,the sampling tissues should be standardized.In this study,10macrobenthic species from the intertidal zone of the Yellow River Delta and Yantai were chosen as the target object to test the isotopic characteristic variations ofdelta~(13)C anddelta15 N at different body parts (whole bodies,muscles and gills).Our results show thatdelta~(13)C anddelta15 N values vary in different sampling tissues for most species,which indicates the different tissues used for analysis impact the food web building.To achieve a more accuracy and comparability result,suitable tissue should be primarily chosen for their food sources and trophic levels analysis.Namely,when the organism as predator,their muscles should first be chosen,for examples,adductor and foot muscles of mollusks,leg muscles of crabs and back muscles of fishes  when the organism as prey, most of their tissues,except for indigestible part(for polychaetes,the digestive tract contents should be removed) should be chosen for analysis on food sources and trophic levels of the secondary consumer,for example,whole soft parts of mollusks,the mixture of muscles and gills of crabs.   A new method to make gamma-ray self-absorption correction 期刊论文  OAI收割 JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, 2001, 卷号: 38, 页码: 655-657 作者:  Tian, DF;  Xie, D;  Ho, YK;  Yang, FJ   |  收藏  |  浏览/下载：15/0  |  提交时间：2018/05/31 isotopic composition  characteristic gamma radiation  gamma-ray self-absorption correction  fissile material  safeguards  nondestructive assay  gamma spectra   Fissile material isotopic composition by gamma-ray spectra 期刊论文  OAI收割 NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2000, 卷号: 449, 页码: 500-504 作者:  Tian, DF;  Xie, D;  Ho, YK;  Yang, FJ   |  收藏  |  浏览/下载：10/0  |  提交时间：2018/05/31 fissile material safeguard  isotopic composition  nondestructive detection  characteristic gamma radiation  geometric self-shielding correction