Parameters of the ultrastable expansive nondecelerative universe     

Vladimír Skalský  Miroslav Súkeník 《Astrophysics and Space Science》1994,215(1):137-147

The measurement of the temperature of the cosmic microwave background radiation (CMBR) with the Far InfraRed Absolute Spectrophotometer (FIRAS) on the Cosmic Background Explorer (COBE) satellite gives a possibility for determination of all mutually related parameters of the ultrastable expansive nondecelerative Universe (ENU) with deviations smaller than 0.4%.The measurement of the large-scale anisotropy of the CMBR with the Differential Microwave Radiometers (DMR) on the COBE satellite allows us to determine the mass density of gravitationally bound systems of large-scale structures of the ENU.  相似文献   

Croatia and Central Europe — the geopolitical relationship     

Duško Topalović  Miroslav Krleža 《GeoJournal》1996,38(4):399-405

The position of Croatia on the border of larger geographic wholes (Central Europe, the Mediterranean, the Balkans) makes it a transitional region for these larger areas. However, the Pannonian region of Croatia, as the largest part of its national territory, places it in the ranks of the Central European states. The long historical ties of the Croatian lands with the Austrian and Hungarian centers of Central European power also confirm Croatia's affiliation with Central Europe. The cultural, civilization, religious and other characteristics, which today ease Croatia's communications with Central European countries, are unavoidable. With state independence, Croatia acquired the political sovereignty vital for its Central European orientation and was liberated from the problems of the Balkans, although it is still struggling for its territorial integrity. Croatian statehood was realized soon after the reunification of Germany, which in fact renewed the concept and content of Central Europe. This fact opened many questions tied to the rivalry and political balance of the European powers, which is also connected to the geopolitical position of Croatia.  相似文献   

A hypothetical estimated mass of the muon neutrino and the mass of the tau neutrino     

Vladimír Skalský  Miroslav Súkeník 《Astrophysics and Space Science》1993,204(1):161-162

Using the see-saw mechanism and estimation of the hypothetical mass of the electron neutrinom _e we find the hypothetical mass of muon neutrinom _µ and hypothetical mass of the tau neutrinom .  相似文献   

New Towns and their environment     

Dr. Miroslav Strida 《GeoJournal》1978,2(1):35-38

The environment has, ins a regional sense, the function of usefulness and the function of housing both being very often contradictory. The prospects of New Towns reduce the occurrence of such conflicts and bring some possibilities for applied-geography-intervention. In the densely populated countries of Central Europe mining, manufacturing, administrative and regional utilization are the main decisive functions in the developing for the origin, localization and prosperity of New Towns.  相似文献   

An analysis of the palaeomagnetic field     

Miroslav Krs  Reviewer J. Kropáček 《Studia Geophysica et Geodaetica》1978,22(4):368-389

Summary The paper is devoted to a critical evaluation of the hypothesis of the prevalent character of the palaeomagnetic field in the course of the whole Phanerozoic. The study ties in with the synthetic processing of all so far published palaeomagnetic data for Eurasia and Africa respecting some of the models ensuing from the concept of plate tectonics. Initial material for testing the dipolar hypothesis was obtained by statistical processing of the palaeomagnetic pole positions and by analyzing the values of the so-called palaeorotation, the palaeoinclination difference and of palaeodivergence. It was shown that, by defining tectonically stable blocks (plates, palaeoplates) within the scope of the Eurasian continent and within the scope of the African continent as a whole, data were obtained bringing evidence of the predominating dipolar character of the mean geomagnetic field for the period from the Quaternary to the Cambrian, with the exception of the Silurian which has not been studied sufficiently. The deviations of the palaeomagnetic directions from the direction of the dipolar field within the scope of the stable blocks have the character of a Gaussian distribution and the standard deviations only amount to a few degrees.  相似文献   

The first satellite laser ranging at ondřejov observatory     

Petr Lála  Miroslav Prokeš  Reviewer M. Burša 《Studia Geophysica et Geodaetica》1976,20(4):391-395

Summary The first laser ranging of the satellites Geos A and B performed at Station 1148 Ondejov in 1972–1975 are evaluated. The least-squares method was used to estimate their internal accuracy. Polynomials of the 6th to 8th degree were found to be necessary for the best fit of a typical satellite pass. The root mean square error is always smaller than 20 ns (3 m), which is consistent with the expected accuracy of the laser ranging system.Dedicated to Prof. RNDr. Emil Buchar, DrSc., Corresponding Member of the Czechoslovak Academy of Sciences, on the Occasion of His 75^th Birthday  相似文献   

On the uncertainty of the transmission function of the optically thick AGB dust shells     

Miroslav Kocifaj  Jozef Klačka  Thomas Posch 《Astrophysics and Space Science》2008,317(1-2):31-38

The uncertainty of the spectral transmission function due to the nonsphericity of cosmic dust particles is analysed for optically thick C-rich and O-rich dust shells. The transmission function directly prescribes the intensity of radiation that passes through a dust shell. It is shown that nonspherical particles affect the stellar spectra in a different way than a system of equally sized spherical particles. Discrepancies in the stellar spectra for both morphological models (spheres and irregular targets) grow with optical thickness of the dust shell and the spectral behaviour of the optical thickness depends on the particle size distribution function. In particular, two most frequently used distrubutions, a power law and Dirac’s delta function, are considered in the presented numerical runs. Light transmission through C-rich dust shells is strongly influenced by absorption which dominates in case of carbonaceous particles. Irregularly shaped carbonaceous particles reduce the intensity of stellar spectra more efficiently than spherical particles of the same composition (the difference is about 10–30%). MgO particles which may be present in O-rich dust shells are almost pure scatterers, thus the ratio of transmission functions for irregularly shaped particles and spherical ones show specific resonant features (especially at wavelengths below 0.4 μm).  相似文献   

The Effect of Humic Acids on Zymogenous Microbial Consortia Growth          下载免费PDF全文

Srdjan B. Miletić  Snežana D. Spasić  Jelena Avdalović  Vladimir Beškoski  Mila Ilić  Gordana Gojgić‐Cvijović  Miroslav M. Vrvić 《洁净——土壤、空气、水》2014,42(9):1280-1283

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Outburst flood hazard: Case studies from the Tien-Shan Mountains, Kyrgyzstan   总被引：3，自引：0，他引：3  

Bohumír Janský  Miroslav Šobr  Zbyněk Engel 《Limnologica》2010,40(4):358-364

More than 2000 of mountain lakes covering more than 0.1 ha exist in a territory of Kyrgyzstan. Nearly 20% of them are dangerous because of instability of lake dams, frequent overflows and melting of buried ice inside the moraine dams. According to the Kyrgyz lake inventory, 328 lakes are at risk of outburst and 12 lakes are considered as actually dangerous. Since 1952 more than 70 disastrous cases of lake outbursts have occurred. The majority of the endangered lakes belong to one of the three genetic types: morainic-glacier, supraglacial and lake dammed by landslides and debris flows. Petrov, Adygine and Koltor lakes were selected and studied in the Tien-Shan Mountains as case studies of the most frequent genetic types of hazardous lakes. Observations were focused on the morphology of the lake basin and the surrounding relief, outflow pattern and processes controlling the development of lake. For the hazard assessment, evolution of glaciers and lakes was reconstructed using historical reports, aerial photographs and satellite images.  相似文献   

Graphical forecasting of absolute topography 50 cb by means of Sawyer-Bushby baroclinic model     

Miroslav Škoda 《Studia Geophysica et Geodaetica》1958,2(3):280-290

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