Disturbances in an infinite slab due to torsional forces applied on a cylindrical cavity     

A. B. Roy M. Sc. 《Pure and Applied Geophysics》1963,56(1):53-57

Summary The paper deals with the disturbances in an infinite slab of finite thickness, the medium being homogeneous, isotropic and perfectly elastic.  相似文献   

La formation des Nuages Altocumulus Translucidus     

M. Čadež 《Pure and Applied Geophysics》1963,54(1):182-189

Résumé Dans cette étude l'explication de la formation des nuages Ac tra part de la supposition que l'air dans ce type de nuages est plus froid que l'air environnant, ce qui provoque certains courants convectifs dans la région du nuage. Ces courants ressemblent à ceux qui sont supposés par la théorie thermoconvective actuelle. D'après notre avis se trouvent des courants descendants audessous des petits nuages qui composent l'Ac tra, et les petits nuages qui forment l'Ac tra sont des corps séparés dont la température est moindre que la température de l'air environnant: c'est pour cela qu'ils tombent. Au contraire, d'après la théorie thermoconvective actuelle, l'air audessous de petits nuages monte et dans la distribution de la température des discontinuités n'existent pas.

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Summary In this paper the explanation of the formation of clouds Ac tra is based on the assumption that the air in the cloud is colder than the surrounding air, causing convective currents in the region of the cloud. These currents are not unlike those assumed by the existing thermoconvective theory. According to the author's view there are descending currents under the cloudlets of which the Ac tra is made, and these cloudlets are separate bodies at a lower temperature than that of the surrounding air, so that the cloudlets fall. On the contrary, according to the existing thermoconvective theory, the air under the cloudlets rises and there are no discontinuities in the distribution of the temperature.

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Rapport présenté le 26 Avril 1962 à la Xème Assemblée Générale de laSocietà Italiana di Geofisica e Meteorologia (26–28 Avril 1962)  相似文献   

Correlation of atmospheric occurences over the United States with some physical and chemical parameters. Part III: Frequencies of precipitation     

Alberto C. Montefinale  Liliana A. Masironi  Henry M. Papée 《Pure and Applied Geophysics》1963,54(1):207-211

Summary Correlation between some physical and chemical variables, measured at 28 stations of the United States Weather Bureau Network, and seasonal and annual frequencies of precipitation, has been attempted with the aim of gaining insight into the bearing of such variables, on occurrence of precipitation. — Concurrent trends of frequencies with local temperature functions, altitude parameters, precipitable water vapour increments, and some chemical species have been found.Contribution of the «Centro Nucleazione Aerosoli» of the National Research Council of Italy, Via Vettore 4 (Monte Sacro),Roma.  相似文献   

Artificial Recharge and pollution of Ground Water     

Robert H. Harmeson  Orville W. Vogel 《Ground water》1963,1(1):11-15

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Stereocomparators and the Reseau     

E. H. THOMPSON 《The Photogrammetric Record》1963,4(21):259-260

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Neue ZnS-Polytypen (9R, 12R und 21R) in mesozoischen Sedimenten NW-Deutschlands     

Dozent Dr. Siegfried Haussühl  Dozent Dr. German Müller 《Contributions to Mineralogy and Petrology》1963,9(1):28-39

Summary Argillaceous sediments of jurassic and lower cretaceous age in NW-Germany contain in several localities authigenous ZnS-polytypes. The crystals with a maximum height of 2 mm exhibit hexagonal-pyramidal and trigonal-pyramidal habit.With X-ray rotation and precession technique the following polytypes could be identified: Sphalerite (3 R = 3 C) 211, 411, 6H 9R, 12R, 15R and 21R.The 9 R-, 12 R- and 21 R-polytypes have not until now been described elsewhere.The structures of the new polytypes were determined as 9R=(21), 12R=(13) and 21R=(3112).Oriented intergrowths of R- and H-polytypes were frequently observed. From the intergrowth-phenomena arguments for the environmental conditions of formation can be deducted.[/p]  相似文献   

Equivalent thickness of the outer ionosphere obtained by evaluation of Faraday records     

E. Argence  R. Eyfrig  H. A. Hess  A. Paul  K. Rawer 《Planetary and Space Science》1963,11(12):1431-1457

With an appropriate system of higher order approximations the Faraday-effect is calculated for instantaneous ionospheric models the data of which are derived from the results of vertical soundings. Only one parameter which corresponds to the thickness of the outer ionosphere is left open; it is determined by global comparison with simultaneous Faraday-observations of satellite emissions. The thickness parameter shows various forms of variation with latitude; an increase towards north is the rule for quiet daytime conditions. Comparison with local methods shows considerable differences due to the indetermination of the absolute number of rotations.  相似文献   

Röntgenmikroanalytische untersuchungen an titanomagnetiten tertiärer eflfusiva zur lösung gesteinsmagnetischer fragen     

H. Vollstadt  G. Suwalski 《Contributions to Mineralogy and Petrology》1965,11(4):382-392

Zusammenfassung Gesteinsmagnetische Studien haben gezeigt, daß für das Verstandnis des jeweiligen magnetischen Verhaltens von Gesteinen u. a. detaillierte mineralogischoptische und nicht zuletzt chemische Untersuchungen nötig Bind. Zum Studiurim der Verteilung der Elemente im Erzkorn wurde die Röntgenmikroanalyse benutzt.Die Methode der Röntgenmikroanalyse wird beschrieben. Die Ergebnisse der Untersuchungen an Titanomagnetiten tertiärer Effusiva kennzeichnen die Inhomogenität der chemischen Verteilung im Erzkorn und lassen die Klärung von Phänomenen zu, die mit Hilfe der durchschnittlichen chemischen Analyse Bowie magnetothermischen u. a. Untersuchungen nicht möglich war.

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Studies on magnetic rocks have demonstrated that detailed informations on composition within ore-particles are needed in order to understand the respective magnetic behaviour. For studying such compositions microanalytic X-ray methods are used.The applied microanalyser is described.Results, gained on this way with tertiary effusiva, let recognize the inhomogenity of composition e.g. within titanomagnetites. They allow clarifying of phenomena, which cannot be understood on another way.

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Buchbesprechungen     

F. Steinhauser  W. Mörikofer  K. Cehak  W. Müller 《Theoretical and Applied Climatology》1965,13(4):558-568

Ohne Zusammenfassung  相似文献   

Availability of Aerial Photographs     

C. I. M. O'Brien. 《The Photogrammetric Record》1965,5(25):63-64

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