搜索结果: 1-15 共查到“理学 sources”相关记录341条 . 查询时间(0.078 秒)
Scattered across our Milky Way galaxy are tens of millions of black holes — immensely strong gravitational wells of spacetime, from which infalling matter, and even light, can never escape. Black hole...
Study of Belize Barrier Reef Shows Nitrogen Enrichment from Land-based Sources Doubled in Four Decades：What’s killing coral reefs in Florida is also killing them in Belize
coral reef nitrogen concentration algal blooms ecological system
2021/8/5
Only 17 percent of live coral cover remains on fore-reefs in Belize. A study finds new evidence that nitrogen enrichment from land-based sources like agriculture run-off and sewage, are significantly ...
Changing sources and processes sustaining surface CO2 and CH4 fluxes along a tropical river to reservoir system
CO2 CH4 surface flux lakes
2021/7/23
Freshwaters are important emitters of carbon dioxide (CO2) and methane (CH4), two potent greenhouse gases (GHGs).
中国地质大学科学技术发展院左博新，胡祥云*等，计算机学院，Geophysical Research Letters （2020），Downward Continuation and Transformation of Total‐Field Magnetic Anomalies Into Magnetic Gradient Tensors Between Arbitrary Surfaces Using Multilayer Equivalent Sources
资源勘探；等效源方法；磁测；数据；下延拓；磁梯度；张量；转换计算
2021/10/15
近日，地球物理著名期刊《Geophysical Research Letters》正式刊发了中国地质大学胡祥云教授团队研究成果 -“Downward continuation and transformation of total-field magnetic anomalies into magnetic gradient tensors between arbitrary surfaces u...
Effects of zinc sources and levels on zinc bioavailability, blood parameters, and nutrient balance of male mink (Neovison vison)
zinc pectin oligosaccharides chelate nutrient digestibility relative bioavailability
2018/11/23
The objective of this study was to investigate the effects of different sources and levels of zinc (Zn) on nutrient digestibility, plasma metabolites, and relative Zn bioavailability in male mink. Ani...
中国地质大学科学技术发展院葛翔,沈传波等, 资源学院构造与油气资源教育部重点实验室 AAPG Bulletin, 2018, Petroleum generation timing and source in the Northern Longmen Shan Thrust Belt, Southwest China: Implications for multiple oil generation episodes and sources
四川盆地；周缘矿山梁；米仓山震旦；寒武
2021/10/21
2018年，国际石油地质重要期刊《AAPG Bulletin》刊发了两篇中国地质大学关于四川盆地周缘矿山梁和米仓山震旦-寒武古油藏形成和演化的研究成果。资源学院构造与油气资源教育部重点实验室博士葛翔为文章的第一作者，导师沈传波教授为通讯作者。
2017SPIE实验室X射线源，光学和应用进展专题会议（Advances in Laboratory-based X-Ray Sources,Optics,and Applications VI）
2017 SPIE 实验室X射线源，光学和应用进展 专题会议
2017/4/25
2017SPIE实验室X射线源，光学和应用进展专题会议（Advances in Laboratory-based X-Ray Sources,Optics,and Applications VI）。
Estimating the reliability of glycemic index values and potential sources of methodological and biological variability
glycemic index variability healthy volunteers insulin index glycated hemoglobin
2018/12/18
Background: The utility of glycemic index (GI) values for chronic disease risk management remains controversial. Although absolute GI value determinations for individual foods have been shown to vary ...
Embry-Riddle Research on Space Plasma Hurricanes Could Lead to New Sources of Energy
Embry-Riddle Research Space Plasma Hurricanes New Sources of Energy
2016/9/12
A new study by researchers at Embry-Riddle Aeronautical University, funded by the National Science Foundation, has identified for the first time a process by which the solar wind is heated along exten...
Effect of Two Doses of Different Zinc Sources (Inorganic vs. Chelated form) on the Epithelial Proliferative Activity and the Apoptotic Index of Intestinal Mucosa of Early-weaned Pigs Orally Challenged with E. coli K88
Weaning Pig Zinc Oxide Small Intestine Apoptosis Mitosis
2016/5/4
The effect of two doses of different sources of zinc, inorganic (zinc oxide) or chelated (zinc glutamate chelate), on morphology and turn-over of the small intestine was assessed in early-weaned pigs ...
New clues in the hunt for the sources of cosmic neutrinos（图）
New clues the hunt cosmic neutrinos
2016/3/2
The sources of the high-energy cosmic neutrinos that are detected by the IceCube Neutrino Observatory buried in the Antarctic ice may be hidden from observations of high-energy gamma rays, new researc...
Measurement-device-independent Quantum Key Distribution with Uncharacterized Qubit Sources
Measurement-device-independent Quantum Key Distribution Uncharacterized Qubit Sources
2016/1/23
Measurement-device-independent quantum key distribution (MDIQKD) is proposed to be secure against any possible detection attacks. The security of the original proposal relies on the assumption that th...
Sources of invasions of a northeastern Pacific acorn barnacle, Balanus glandula, in Japan and Argentina
Marine biological invasions Marine introductions
2015/12/11
Within years of its introduction, the North American barnacle Balanus glandula Darwin,
1854 became an abundant member of rocky intertidal communities in Japan and Argentina. To
determine the regiona...
On solutions of Maxwell’s equations with dipole sources over a thin conducting film
solutions of Maxwell’s equations dipole sources conducting film
2015/10/16
We derive and interpret solutions of time-harmonic Maxwell’s equations with a vertical and a horizontal electric dipole near a planar, thin conducting film, e.g. Graphene sheet, lying between two unbo...
The external magnetic sources over the polar caps - Feasible modelling unrealistic expectations
magnetospheric model plasma cavity Hamilton's principle substorm auroral oval Svalgaard vortex ? aurora luminosity curve electric current electric field plasma drift trapped particles
2015/10/8
No average status can be defined for the sources of the external magnetic field over the polar caps, no index can provide with any such model, the observation of no single quantity or parameter can gi...