找回密碼
 To register

QQ登錄

只需一步,快速開始

掃一掃,訪問微社區(qū)

打印 上一主題 下一主題

Titlebook: Comets and the Origin of Life; Proceedings of the F Cyril Ponnamperuma Conference proceedings 1981 D. Reidel Publishing Company, Dordrecht,

[復(fù)制鏈接]
查看: 8562|回復(fù): 64
樓主
發(fā)表于 2025-3-21 19:49:37 | 只看該作者 |倒序?yàn)g覽 |閱讀模式
書目名稱Comets and the Origin of Life
副標(biāo)題Proceedings of the F
編輯Cyril Ponnamperuma
視頻videohttp://file.papertrans.cn/231/230144/230144.mp4
叢書名稱Proceedings of the College Park Colloquia
圖書封面Titlebook: Comets and the Origin of Life; Proceedings of the F Cyril Ponnamperuma Conference proceedings 1981 D. Reidel Publishing Company, Dordrecht,
描述The return of Halley‘s Cornet in 1986 has generated much ex- citement in the scientific community with preparations already afoot for an International Cornet Watch and a cornet launch by the European Space Community, the Japanese and Soviet Space Scientists. The meet- ing held at the University of Maryland in October 1980 was primarily stimulated by the preparations for further study of this cornet and by one of the most important unanswered questions related to comets, name- ly, whether they may have made a eontribution to the origin of life on earth. Our un"derstanding of the role of comets in the origin of life must necessarily come from our studies of the astronomy and the chem- istry of comets. Some clues to the processes which led to the for- mation of organic molecules and eventually to the appearance of life have come from these studies of comets, perhaps the most ancient of all objects in our solar system. Whether there is, however, a biology of comets still remains to be seen, although some claims have been made that perhaps comets might themselves provide an environment for even the beginnings of life. Scientists with the latest available information on comets and differ
出版日期Conference proceedings 1981
關(guān)鍵詞Europe; atmosphere; biology; chemistry; environment; evolution; formation; isotope; solar system
版次1
doihttps://doi.org/10.1007/978-94-009-8528-5
isbn_softcover978-94-009-8530-8
isbn_ebook978-94-009-8528-5
copyrightD. Reidel Publishing Company, Dordrecht, Holland 1981
The information of publication is updating

書目名稱Comets and the Origin of Life影響因子(影響力)




書目名稱Comets and the Origin of Life影響因子(影響力)學(xué)科排名




書目名稱Comets and the Origin of Life網(wǎng)絡(luò)公開度




書目名稱Comets and the Origin of Life網(wǎng)絡(luò)公開度學(xué)科排名




書目名稱Comets and the Origin of Life被引頻次




書目名稱Comets and the Origin of Life被引頻次學(xué)科排名




書目名稱Comets and the Origin of Life年度引用




書目名稱Comets and the Origin of Life年度引用學(xué)科排名




書目名稱Comets and the Origin of Life讀者反饋




書目名稱Comets and the Origin of Life讀者反饋學(xué)科排名




單選投票, 共有 1 人參與投票
 

0票 0.00%

Perfect with Aesthetics

 

0票 0.00%

Better Implies Difficulty

 

1票 100.00%

Good and Satisfactory

 

0票 0.00%

Adverse Performance

 

0票 0.00%

Disdainful Garbage

您所在的用戶組沒有投票權(quán)限
沙發(fā)
發(fā)表于 2025-3-21 20:54:03 | 只看該作者
Comet Nucleus: Some Characteristics and a Hypothesis on Origin and Structure,mets. These points will be followed by presentation of the problem of cosmic ray irradiation of comets in the long time they survive in the Oort Cloud. A more detailed discussion of this phenomenon, including an experimental investigation of ice irradiation by 1 MV proton, will be given by Marla Moo
板凳
發(fā)表于 2025-3-22 00:26:35 | 只看該作者
Ultraviolet Spectroscopy of Comets,l as several simple molecules made from these species have their strong resonance transitions in the ultraviolet region of the spectrum. However, due to the opacity of the atmosphere to ultraviolet, these observations must be made from space, and it was not until 1970 that the extensive HI Lyman α e
地板
發(fā)表于 2025-3-22 05:41:42 | 只看該作者
5#
發(fā)表于 2025-3-22 11:46:17 | 只看該作者
Interplanetary Dust - Its Physical Nature and Entry into the Atmosphere of Terrestrial Planets,k, fine grained material similar to carbonaceous chondrites but different from known meteorites in mineralogy and structure. If the analyzed samples are typical interplanetary particles then they are probably cometary materials similar to the vast numbers of cometary particles which have continuousl
6#
發(fā)表于 2025-3-22 16:33:54 | 只看該作者
7#
發(fā)表于 2025-3-22 19:40:54 | 只看該作者
Chemical Kinetics IM the Coma,are described and correlated to distance in the coma above the nucleus and to heliocentric distance of the comet. Two classes for the composition of comets are considered based on their place of origin: in the environs of the giant planets or in a companion fragment of the presolar nebula. Compariso
8#
發(fā)表于 2025-3-23 00:16:26 | 只看該作者
9#
發(fā)表于 2025-3-23 02:21:25 | 只看該作者
,Chemical Evolution of Interstellar Dust — A Source of Prebiotic Material ?, cloud collapse (early pre-solar nebula) of complex non-volatile molecular mixtures of oxygen, carbon and nitrogen with hydrogen in addition to such volatile combinations as H.O, CO, etc. These constituents may be presumed to be the predominant constituents of a comet which accreted out of the inter
10#
發(fā)表于 2025-3-23 05:47:08 | 只看該作者
 關(guān)于派博傳思  派博傳思旗下網(wǎng)站  友情鏈接
派博傳思介紹 公司地理位置 論文服務(wù)流程 影響因子官網(wǎng) 吾愛論文網(wǎng) 大講堂 北京大學(xué) Oxford Uni. Harvard Uni.
發(fā)展歷史沿革 期刊點(diǎn)評(píng) 投稿經(jīng)驗(yàn)總結(jié) SCIENCEGARD IMPACTFACTOR 派博系數(shù) 清華大學(xué) Yale Uni. Stanford Uni.
QQ|Archiver|手機(jī)版|小黑屋| 派博傳思國際 ( 京公網(wǎng)安備110108008328) GMT+8, 2025-10-11 05:52
Copyright © 2001-2015 派博傳思   京公網(wǎng)安備110108008328 版權(quán)所有 All rights reserved
快速回復(fù) 返回頂部 返回列表
和平县| 丹巴县| 上蔡县| 屏边| 泊头市| 安丘市| 唐山市| 安溪县| 定陶县| 广丰县| 于都县| 健康| 白朗县| 绥德县| 芦溪县| 静安区| 绿春县| 海伦市| 兴安县| 余江县| 咸丰县| 农安县| 仁化县| 阿拉善盟| 牙克石市| 仪征市| 卢氏县| 通道| 衢州市| 云安县| 乳源| 鲜城| 台湾省| 内丘县| 桦南县| 军事| 西盟| 绥江县| 绵阳市| 广水市| 桐乡市|