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Bulletin de la Classe des sciences最新文献

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Mesure de l'absorption stratosphérique du rayonnement solaire de 3,05 à 3,70 microns 测量平流层对3.05 - 3.70微米太阳辐射的吸收
Bulletin de la Classe des sciences Pub Date : 2018-01-22 DOI: 10.18758/A_066
M. Ackerman, D. Frimout
{"title":"Mesure de l'absorption stratosphérique du rayonnement solaire de 3,05 à 3,70 microns","authors":"M. Ackerman, D. Frimout","doi":"10.18758/A_066","DOIUrl":"https://doi.org/10.18758/A_066","url":null,"abstract":"Solar spectra have been recorded from 3.05 to 3.70µm by means of a balloon borne monochromator at an altitude of 35 km and for solar zenith distances from 75° to 95°. Absorptions due to CH4 and H2O are identified as well as 03 bands observed for the first time in the atmosphere. \u0000 Upper limits for the stratospheric mixing ratios of NO2 and HCHO are deduced.","PeriodicalId":296277,"journal":{"name":"Bulletin de la Classe des sciences","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124543072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
L'effet de la diffusion thermique sur la distribution de l'hélium dans l'hétérosphère 热扩散对异球中氦分布的影响
Bulletin de la Classe des sciences Pub Date : 2018-01-19 DOI: 10.18758/A_022
G. Kockarts
{"title":"L'effet de la diffusion thermique sur la distribution de l'hélium dans l'hétérosphère","authors":"G. Kockarts","doi":"10.18758/A_022","DOIUrl":"https://doi.org/10.18758/A_022","url":null,"abstract":"The effect of thermal diffusion on the vertical distribution of helium in the heterosphere is discussed. It is shown that an increase in the helium concentration of 1 .4 to 2.4 at the thermopause level, due to thermal diffusion, leads to atmospheric densities explaining the observed drag of the satellite Echo 1.","PeriodicalId":296277,"journal":{"name":"Bulletin de la Classe des sciences","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127866380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Le problème des hauteurs d'échelle et de leurs gradients dans l'hétérosphère 异质圈中尺度高度及其梯度的问题
Bulletin de la Classe des sciences Pub Date : 2018-01-19 DOI: 10.18758/A_026
G. Kockarts
{"title":"Le problème des hauteurs d'échelle et de leurs gradients dans l'hétérosphère","authors":"G. Kockarts","doi":"10.18758/A_026","DOIUrl":"https://doi.org/10.18758/A_026","url":null,"abstract":"The properties of the heterosphere are discussed in terms of the behaviour of scale heights and their gradients. The height variation of the mean molecular mass leads to important gradients of scale heights in the isothermal region of the heterosphere. An analysis of the atmospheric scale height H and the density scale height Hρ which increase with altitude shows that H ≥ Hρ everywhere. Their positive gradients β and βρ may have all possible values between 0 and 1.5. The gradient βρ is not less than β in the thermosphere, but may be greater or less than β in the isothermal region depending on the thermopause temperature.","PeriodicalId":296277,"journal":{"name":"Bulletin de la Classe des sciences","volume":"9 8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126183697","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Les variations de la densité atmosphérique dans la thermosphère 大气中大气密度的变化
Bulletin de la Classe des sciences Pub Date : 2017-08-21 DOI: 10.3406/barb.1969.62465
J. Vercheval
{"title":"Les variations de la densité atmosphérique dans la thermosphère","authors":"J. Vercheval","doi":"10.3406/barb.1969.62465","DOIUrl":"https://doi.org/10.3406/barb.1969.62465","url":null,"abstract":"An analysis of the various types of density variations in the mean thermosphère is made by using the orbital data of the satellites 1966-101 G, Secor 6 and ERS 16 obtained between November 1966 and June 1967.","PeriodicalId":296277,"journal":{"name":"Bulletin de la Classe des sciences","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131916531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sur l'apparence de certains satellites artificiels 关于某些人造卫星的外观
Bulletin de la Classe des sciences Pub Date : 1966-10-01 DOI: 10.3406/barb.1966.62706
J. Cox
{"title":"Sur l'apparence de certains satellites artificiels","authors":"J. Cox","doi":"10.3406/barb.1966.62706","DOIUrl":"https://doi.org/10.3406/barb.1966.62706","url":null,"abstract":"","PeriodicalId":296277,"journal":{"name":"Bulletin de la Classe des sciences","volume":"600 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1966-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123158491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sur la variation de la rotation et de la nutation libre de la Terre 关于地球自转和自由旋转的变化
Bulletin de la Classe des sciences Pub Date : 1966-07-01 DOI: 10.3406/barb.1966.62698
J. Cox, J. V. Mieghem
{"title":"Sur la variation de la rotation et de la nutation libre de la Terre","authors":"J. Cox, J. V. Mieghem","doi":"10.3406/barb.1966.62698","DOIUrl":"https://doi.org/10.3406/barb.1966.62698","url":null,"abstract":"","PeriodicalId":296277,"journal":{"name":"Bulletin de la Classe des sciences","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1966-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122210357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Sur la décomposition d'une fonction d'ensembles simplement additive 关于简单可加集函数的分解
Bulletin de la Classe des sciences Pub Date : 1966-04-02 DOI: 10.3406/barb.1966.62617
A. Ducamp
{"title":"Sur la décomposition d'une fonction d'ensembles simplement additive","authors":"A. Ducamp","doi":"10.3406/barb.1966.62617","DOIUrl":"https://doi.org/10.3406/barb.1966.62617","url":null,"abstract":"Résumé. — Dans cette note, nous montrons qu'un théorème de Riesz-Bourbaki sur les espaces vectoriels réticulés permet de retrouver et de préciser un résultat de Yosida-Hewitt sur les fonctions d'ensembles simplement additives.","PeriodicalId":296277,"journal":{"name":"Bulletin de la Classe des sciences","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1966-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128404401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Absorption atmosphérique et trajectoire apparente d'un satellite artificiel 人造卫星的大气吸收和视轨迹
Bulletin de la Classe des sciences Pub Date : 1965-11-01 DOI: 10.3406/barb.1965.65348
J. Cox, J. Hunaerts
{"title":"Absorption atmosphérique et trajectoire apparente d'un satellite artificiel","authors":"J. Cox, J. Hunaerts","doi":"10.3406/barb.1965.65348","DOIUrl":"https://doi.org/10.3406/barb.1965.65348","url":null,"abstract":"Effect of the atmosphere on the aspect and apparent trajectory of an artificial satellite.","PeriodicalId":296277,"journal":{"name":"Bulletin de la Classe des sciences","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1965-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132855095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sur l'explication des fluctuations de la Rotation de la Terre 关于地球自转波动的解释
Bulletin de la Classe des sciences Pub Date : 1965-10-01 DOI: 10.3406/barb.1965.65318
J. Cox, J. V. Mieghem
{"title":"Sur l'explication des fluctuations de la Rotation de la Terre","authors":"J. Cox, J. V. Mieghem","doi":"10.3406/barb.1965.65318","DOIUrl":"https://doi.org/10.3406/barb.1965.65318","url":null,"abstract":"The solar hypothesis and the climatic hypothesis do not seem to exclude necessarily one another.","PeriodicalId":296277,"journal":{"name":"Bulletin de la Classe des sciences","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1965-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133936307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Lyman Lines in the Spectrum of Main Sequence Early-Type Stars 主序早型恒星光谱中的莱曼谱线
Bulletin de la Classe des sciences Pub Date : 1965-07-15 DOI: 10.3406/barb.1965.65267
L. Houziaux
{"title":"The Lyman Lines in the Spectrum of Main Sequence Early-Type Stars","authors":"L. Houziaux","doi":"10.3406/barb.1965.65267","DOIUrl":"https://doi.org/10.3406/barb.1965.65267","url":null,"abstract":"Abstract : Profiles of Lyman lines have been computed for five model atmospheres representing main-sequence B-type stars. Interstellar lines have also been considered. (Author)","PeriodicalId":296277,"journal":{"name":"Bulletin de la Classe des sciences","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1965-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127586150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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