The chemical composition of a comet has always been considered to be a function of where it formed in the nebula. We suggest that the most important factor in determining a comet's chemistry might actually be when it formed. We present specific predictions of correlations between the dust and...
网络彗星化学组成 网络释义 1. 彗星化学组成 chemical-英汉词典... ... chemical composition of soil 土壤化学成分chemical composition of the comet彗星化学组成... www.fastdict.net|基于2个网页
Google Share on Facebook cosmochemical Encyclopedia cos·mo·chem·is·try (kŏz′mō-kĕm′ĭ-strē) n. The scientific study of the chemical composition of the universe, especially the early universe. cos′mo·chem′i·cal(-ĭ-kəl)adj. ...
摘要: PURPOSE: To obtain a new activity-increasing agent composition for an agrichemical capable of exhibiting an activity-increasing effect or various kinds of agrichemicals by compounding an enzyme with a surfactant in a specific ratio.收藏 引用 批量引用 报错 分享 文库来源 求助全文 ACTIVITY-...
To access a ChemInform ... Ralf,I.,Kaiser - 《Cheminform》 被引量: 342发表: 2002年 The Interstellar C-H Stretching Band Near 3.4 μm: Constraints on the Composition of Organic Material in the Diffuse ISM 1992 . The interstellar C–H stretching band near 3.4 microns: Constraints on the ...
Interstellar matrices: the chemical composition and evolution of interstellar ices as observed by ISO more, dedicated experiments may be undertaken to further improve the understanding of the basic physico-chemical processes that take place in cosmic ices... LD Dartois - 《Spectrochimica Acta Part A...
T Simeon,K Balasubramanian,J Leszczynski - 《Journal of Physical Chemistry A》 被引量: 2发表: 2008年 Benthos of a large neotropical river: spatial patterns and species assemblages in the Lower Paraguay and its floodplains We studied the composition and spatial structure of benthic invertebrate as...
COSAC is one out of ten experiments on the Rosetta Lander. Its scientific goal is to analyze in situ the chemical composition of the volatile constituents of the nucleus of the target comet P/Wirtanen. Constituted of several (up to eight) capillary wall-coated and porous-layer open tubular ...
Chemistry is the science of matter and the ___ that occur between different kinds of matterespecially chemical changes when types of matter are ___ into other types of matter. That is, chemistry is a ___ concerned with the composition, structure, behavior, and properties of matter and...
Insights into both the detailed composition of Jupiter's atmosphere and unexpected local meteorological phenomena were revealed by in-situ measurements from the Galileo Probe Neutral Mass Spectrometer taken on December 7, 1995. Measurements of the neutral atmospheric composition from a pressure of 0.5 ba...