標(biāo)題: Titlebook: Structure and Evolution of the Galaxy; Proceedings of the N L. N. Mavridis Conference proceedings 1971 D. Reidel Publishing Company, Dordre [打印本頁] 作者: 適婚女孩 時(shí)間: 2025-3-21 18:47
書目名稱Structure and Evolution of the Galaxy影響因子(影響力)
書目名稱Structure and Evolution of the Galaxy影響因子(影響力)學(xué)科排名
書目名稱Structure and Evolution of the Galaxy網(wǎng)絡(luò)公開度
書目名稱Structure and Evolution of the Galaxy網(wǎng)絡(luò)公開度學(xué)科排名
書目名稱Structure and Evolution of the Galaxy被引頻次
書目名稱Structure and Evolution of the Galaxy被引頻次學(xué)科排名
書目名稱Structure and Evolution of the Galaxy年度引用
書目名稱Structure and Evolution of the Galaxy年度引用學(xué)科排名
書目名稱Structure and Evolution of the Galaxy讀者反饋
書目名稱Structure and Evolution of the Galaxy讀者反饋學(xué)科排名
作者: 談判 時(shí)間: 2025-3-21 22:10
Stellar Evolution,all be concerned with the reverse process, in which stars lose mass back to the interstellar medium. We shall also be interested in late stages of evolution of stars in which they have properties especially interesting for the determination of galactic distances and we shall discuss the properties of some of the endpoints of stellar evolution.作者: 奇怪 時(shí)間: 2025-3-22 02:54
Systems and Catalogues of Proper Motions,22 stars is titled . Then Bessel made many thousands of measurements of stellar positions with a transit circle at Koenigsberg. The measurements carried out by Bradley, Maskelyne, and by Bessel form pioneer work in the derivation of accurate proper motions.作者: 磨坊 時(shí)間: 2025-3-22 08:23 作者: 整頓 時(shí)間: 2025-3-22 09:59
The Evolution of Spiral Structure,ors in the problem: the role played by the masses of stars, and the development of a chemical inhomogeneity through the exhaustion of the nuclear fuel, hydrogen, in the central core. In galactic evolution, I fear we may be lacking some vital information or understanding that is as basic and fundamental as these were to stellar evolution.作者: 背帶 時(shí)間: 2025-3-22 16:22
Historical Development of Our Ideas Concerning the Structure of the Galaxy, true, had already expressed the view that the stars would be suns of the same nature as our sun, and that the glittering band of the Milky Way consisted of small particles, but these views were not generally adopted. Copernicus and Kepler spoke only of a’ sphere of fixed stars’ — . — whose diameter作者: 夸張 時(shí)間: 2025-3-22 18:55 作者: 縮短 時(shí)間: 2025-3-22 21:27
Photometry and Photometric Systems, instinctive, and the relevant information seems to be very easy to obtain. This apparent simplicity hides numerous pitfalls which it is not always easy to avoid. We will not discuss here the methods used for reducing the measurement to its value outside the atmosphere, this having been done very we作者: 蟄伏 時(shí)間: 2025-3-23 02:22
Space Distribution and State of Motion of the Early-Type Stars, Open Clusters, Associations and Stegh-luminosity objects. Usually, fundamental far-reaching distance determinations are based on photometric and spectroscopic methods. The luminosity calibration cannot be separated, in general, from the more general problem of calibrating the spectral classifications in terms of luminosities, intrins作者: 彈藥 時(shí)間: 2025-3-23 09:33 作者: hallow 時(shí)間: 2025-3-23 12:37 作者: Coterminous 時(shí)間: 2025-3-23 14:30
X-Ray Sources in the Milky Way,i ., 1962) discovered the first cosmic X-ray source. Since then many important results have been obtained concerning both observations and their physical interpretation. There are now a score of scientific groups actively engaged in experiments — mostly by means of sounding rockets — and the number 作者: homeostasis 時(shí)間: 2025-3-23 19:28 作者: WAG 時(shí)間: 2025-3-24 01:35
Stellar Evolution,he Galaxy. I shall not review the techniques used for the numerical computation of stellar evolution, but will assume that the interested reader can consult standard reference works for such topics. The lectures by Professor Ledoux discuss the formation of stars from the interstellar gas. Here we sh作者: 解決 時(shí)間: 2025-3-24 05:43 作者: 明智的人 時(shí)間: 2025-3-24 10:24 作者: condone 時(shí)間: 2025-3-24 12:16
Summary and Desiderata,earch. They have, however, emphasized those fields upon which nowadays most of the attention is focussed. For those among the participants —for instance the students of physics — who might wish to become more acquainted with present trends in galactic research the following references to recent or f作者: Insufficient 時(shí)間: 2025-3-24 17:04
Conference proceedings 1971s of the Science Committee, North Atlantic Treaty Organization (NATO) in Lagonissi near Athens, Greece between 8-19 September 1969. Seventeen astronomers from eight countries acted as lecturers in the Institute, which was attended by sixty-three students from twelve countries. All the lectures given作者: BIBLE 時(shí)間: 2025-3-24 19:53 作者: 退出可食用 時(shí)間: 2025-3-25 00:54 作者: Ophthalmoscope 時(shí)間: 2025-3-25 05:20
W. Frickeexiv-distanziertes Verh?ltnis zur eigenen Bildungspraxis. Eben diese Nachdenklichkeit fassen wir als ein wesentliches Qualit?tsmerkmal von Bildungsprozessen auf. Die Idee eines reflexiven und zugleich praxisbezogenenLernens wird durch den Begriff des ?Reflective Practitioner“ (Sch?n 1987) sehr gut a作者: fetter 時(shí)間: 2025-3-25 08:35 作者: fatty-acids 時(shí)間: 2025-3-25 14:55 作者: Maximizer 時(shí)間: 2025-3-25 16:51 作者: Psa617 時(shí)間: 2025-3-25 20:42 作者: 啤酒 時(shí)間: 2025-3-26 03:19
L. Grattont prim?r durch Lehrveranstaltungsevaluierungen, die das Handeln der Lehrenden bewerten..Ungeachtet der Schwierigkeiten, ?Qualit?t“ in der Hochschullehre korrekt zu beschreiben und zu messen, k?nnen zwei Faktoren als wesentlich für eine qualit?tsvolle Lehre herausgestrichen werden. Der erste Faktor i作者: custody 時(shí)間: 2025-3-26 04:47 作者: 沒有準(zhǔn)備 時(shí)間: 2025-3-26 11:06
G. Contopouloss Unternehmens durch die zielgruppengerechte Ansprache sowohl in der Aussage als auch im gew?hlten Format wiederfinden. Die weiteren Ps finden nach meinem Verst?ndnis automatisch Eingang in den gesamten Marketingprozess. Denn ohne motiviertes Personal, integrierte und durchg?ngige Prozesse sowie ein作者: 進(jìn)取心 時(shí)間: 2025-3-26 13:46 作者: NIL 時(shí)間: 2025-3-26 19:40 作者: 本能 時(shí)間: 2025-3-26 21:30
Photometry and Photometric Systems,1963) in which he presented the principal methods of spectral classification based on photometric systems. Finally, the same author has discussed, in another article (1966), the case of narrow-and intermediate-band photometries with special attention to the ., ., ., ., β system. We propose to presen作者: 宴會(huì) 時(shí)間: 2025-3-27 02:54
Space Distribution and State of Motion of the Early-Type Stars, Open Clusters, Associations and Steed to the theoretical parameters mass, age, chemical composition, rotation… From these relationships we should be able to reach conclusions as to how mass, luminosity, and chemical composition vary with stellar age for different sub-groups of stars, that is, conclusions concerning galactic evolution作者: Asperity 時(shí)間: 2025-3-27 07:29
Conference proceedings 1971tudents a general outline of the field. In addition to the lectures ample time was spent in discussions and personal contacts. In order to simplify the publica- tion it was felt reasonable, however, not to include the discussions in the present volume.作者: 憤慨點(diǎn)吧 時(shí)間: 2025-3-27 12:22 作者: 浮雕 時(shí)間: 2025-3-27 17:39
Interstellar Dust,Interstellar matter is an important component of our Galaxy although its mass may be less than 10% of the whole system. The structure of the Galaxy is strongly affected by the distribution of interstellar matter and its evolution is mainly determined by the amount of interstellar gas and dust which is available for star formation.作者: 追蹤 時(shí)間: 2025-3-27 21:41 作者: 廢墟 時(shí)間: 2025-3-28 00:48 作者: 正論 時(shí)間: 2025-3-28 03:52
Prestellar Evolution,A symposium on a very similar subject was held in Liège at the beginning of July 1969 and although, for reasons of time and competence, it is quite out of the question for me to try to summarize its proceedings here systematically, I shall certainly refer often to results presented there.作者: myopia 時(shí)間: 2025-3-28 09:18
Evolution of Stellar Clusters and Associations,Star clusters are usually defined as agglomerations of stars in space, whose average projected densities appear to exceed the density of background stars. Cluster members are identified either by parallax measurements or by common motion or also with the help of the color-luminosity diagram established from known members.作者: FLAG 時(shí)間: 2025-3-28 13:07
978-94-010-3077-9D. Reidel Publishing Company, Dordrecht, Holland 1971作者: Deject 時(shí)間: 2025-3-28 15:20
Structure and Evolution of the Galaxy978-94-010-3075-5Series ISSN 0067-0057 Series E-ISSN 2214-7985 作者: 新星 時(shí)間: 2025-3-28 18:48
Space Distribution of the Late-Type Stars,rs of these spectral types that may be discovered by spectroscopic observations, regardless of whether they are variable or not. Because of the intrinsic redness of these stars their study is more effectively done with infrared techniques.作者: Cerumen 時(shí)間: 2025-3-29 01:29
Space Distribution and State of Motion of the Interstellar Matter as Revealed from Radio-Astronomicnes, and the OH and CH.O absorption, while in addition any line observations can contribute to knowledge of the large-scale . The 21-cm line has still provided the most information, with the other components entering the picture mainly through confirmatory or comparative data.作者: 過于平凡 時(shí)間: 2025-3-29 07:02 作者: vitreous-humor 時(shí)間: 2025-3-29 08:00
Summary and Desiderata,earch. They have, however, emphasized those fields upon which nowadays most of the attention is focussed. For those among the participants —for instance the students of physics — who might wish to become more acquainted with present trends in galactic research the following references to recent or forthcoming literature may be useful.作者: HEED 時(shí)間: 2025-3-29 11:59
Astrophysics and Space Science Libraryhttp://image.papertrans.cn/t/image/880191.jpg作者: 名次后綴 時(shí)間: 2025-3-29 16:16 作者: GUILE 時(shí)間: 2025-3-29 21:24
W. Frickeen angesehen werden. Bildungsprozesse sind danach nicht nach einmal erfolgter Planung Selbstl?ufer, die immer wieder in ?hnlicher Weise gleichsam sicher und zielorientiert ablaufen, sondern bedürfen der st?ndigen reflexiven Erneuerung. Esgeht dabei aber nicht nur um die Erneuerung oder gar st?ndige 作者: 閹割 時(shí)間: 2025-3-30 03:32
M. Golayen angesehen werden. Bildungsprozesse sind danach nicht nach einmal erfolgter Planung Selbstl?ufer, die immer wieder in ?hnlicher Weise gleichsam sicher und zielorientiert ablaufen, sondern bedürfen der st?ndigen reflexiven Erneuerung. Esgeht dabei aber nicht nur um die Erneuerung oder gar st?ndige 作者: 爭吵加 時(shí)間: 2025-3-30 07:00 作者: 同謀 時(shí)間: 2025-3-30 12:09
F. J. Kerr sehen immer mehr die Notwendigkeit, Studierende und damit zukünftige P?dagogInnen mit Kompetenzen auszustatten, die über das forschende Lernen erworben werden k?nnen. Im vorliegenden Text wird das Prüfungsdesign zweier Lehrveranstaltungen pr?sentiert, das im forschenden Lernen seine methodische Aus作者: 創(chuàng)造性 時(shí)間: 2025-3-30 12:52 作者: 諂媚于人 時(shí)間: 2025-3-30 16:56
L. Grattonbjektive Erwartungen der Beteiligten sowie der Gesellschaft einen Einfluss auf den Qualit?tsbegriff im Hochschulbereich haben. Da der Qualit?tsbegriff ein unscharfer ist, ist die Messung der Qualit?t der Hochschullehre eine Herausforderung..Die Erhebung von Kennzahlen im Wege der Verifizierung liefe作者: ASSAY 時(shí)間: 2025-3-30 21:06
Richard Woolleyonkrete Praxistipps und direkt umsetzbare HandlungsideenDieses Buch gibt einen kompakten überblick über alle digitalen Kommunikationskan?le, die B2B-Unternehmen zielgerichtet für sich nutzen k?nnen, um Kunden auch in Zukunft auf sich aufmerksam zu machen, sie zu gewinnen und zu binden. Der Autor bes作者: 階層 時(shí)間: 2025-3-31 03:49
G. Contopouloseines Unternehmens. Dies bezeichnet man als den sogenannten Marketing-Mix. Ursprünglich aus dem Produktmarketing stammen die sogenannten 4 Ps, auf die sich die zentralen Aufgaben des Marketings stützen: .Diese wurden theoretisch für den Bereich Dienstleistungsmarketing erweitert um die 3 Ps Personal作者: 舊病復(fù)發(fā) 時(shí)間: 2025-3-31 06:15 作者: 廣口瓶 時(shí)間: 2025-3-31 12:45
