Theory of accreting neutron stars. I     

G. P. Alodzhants  L. Sh. Grigoryan  G. S. Saakyan  A. V. Sarkisyan 《Astrophysics》1988,29(3):763-768

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Study of magnetic field,rock magnetization and lunar electrical conductivity in the Bay Le Monnier     

Sh. Sh. Dolginov  Ye. G. Yeroshenko  V. A. Sharova  T. A. Vnuchkova  L. L. Vanyan  B. A. Okulessky  A. T. Bazilevsky 《Earth, Moon, and Planets》1976,15(1-2):3-14

The data of three-times repeated magnetic survey of the section of Lunokhod-2 route 1.5 km long are analyzed. The linear size of the regions of magnetic field anomalies disclosed is 200–300 m. The results of magnetic survey near the tectonic break of Straight Rille and near the south rim of crater Le Monnier were used for estimation of rock magnetization in situ. It is shown that mare basalts in south-east region of crater Le Monnier have oblique magnetization (at the angle ç30° to horizon). The magnitude of magnetization is × 5 × 10^–5 G cm g^–1. The south-east slope of the crater Le Monnier is magnetized roughly vertically, the upper limit of magnetization of the rocks of the rim is ç 1 × 10^–5 G cm³ g^–1. The results of an analysis of 160 magnetic field variations recorded by Lunokhod-2 indicate that the horizontal components of variations have nearly linear polarization. The principal axes of hodographs stretch in the direction north-west-south-east. Such a polarization of variations may be due to an increase of the thickness of the upper isolated layer under Mare Serenitatis.  相似文献   

Friedmann model universes in a centrally symmetric reference system     

K. P. Stanyukovich  O. Sh. Sharshekeev 《Astrophysics》1970,6(4):313-319

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Differential rotation of the sun determined tracing sunspots and oscillations of sunspot tilt angle     

Khutsishvili  E.V.  Gigolashvili  M. Sh.  Kvernadze  T.M. 《Solar physics》2002,206(2):219-228

The time and spatial characteristics of 324 large sunspots (S50 millionths of the solar hemisphere) selected from the Abastumani Astrophysical Observatory photoheliogram collection (1950–1990) have been studied. The variations of sunspot angular rotation velocity residuals and oscillations of sunspot tilt angle were analyzed. It has been shown that the differential rotation rate of selected sunspots correlates on average with the solar cycle. The deceleration of differential rotation of large sunspots begins on the ascending arm of the activity curve and ends on the descending arm reaching minimum near the epochs of solar activity maxima. This behavior disappears during the 21st cycle. The amplitudes and periods of sunspot tilt-angle oscillations correlate well with the solar activity cycle. Near the epochs of activity maximum there appear sunspots with large amplitudes and periods showing a significant scatter while the scatter near the minimum is rather low. We also found evidence of phase difference between the sunspot angular rotation velocity and the amplitudes and periods of tilt-angle oscillations.  相似文献   

Regional land surface energy fluxes by satellite remote sensing in the Upper Xilin River Watershed (Inner Mongolia, China)   总被引：1，自引：0，他引：1  

L. Fan  Sh. Liu  Ch. Bernhofer  H. Liu  F. H. Berger 《Theoretical and Applied Climatology》2007,88(3-4):231-245

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Natural-water availability in Georgia     

R. Sh. Meskhiya  T. N. Tsintsadze 《Water Resources》2007,34(1):103-105

Water availability in Georgia is estimated for two 40-year periods (1921–1960 and 1961–2000). A map is presented to show excessive and deficient water resources in Georgia and their variations under global climate changes.  相似文献   

Modeling and calculation of bed score around large-diameter vertical cylinder under wave action     

I. Sh. Khalfin 《Water Resources》2007,34(1):49-59

The results of studying the scour of bed composed of fine and coarse sand around models of large-diameter vertical cylinder under the effect of regular waves are presented. Comparison of the results of experiments with fine and coarse sand showed essential qualitative and quantitative distinctions between the two cases. The results of experiments with coarse sand were used to derive, for the first time, a formula for the estimation of the score depth, including two similarity criteria—the sediment motion factor (SM-factor), and Keulegan-Carpenter number. This formula is applicable to both the engineering analysis of the scour depth of gravel bed or protective riprap by crashed rock or fine stone and the approximate prediction of the scour depth of sand bed around structures under real storm conditions. The conditions for correct modeling of wave scour around structures with large horizontal dimensions are considered and the irrelevance of modeling such scour with the use of fine-sand models is demonstrated.  相似文献   

Neutron stars in the bimetric scalar—tensor theory of gravitation. II. solutions with a variable scalar field     

L. Sh Grigorian  P. F. Kazarian  H. F. Khachatrian 《Astrophysics》1998,41(1):85-88

Solutions of the equations of the bimetric scalar—tensor theory of gravitation with a variable scalar field are found for configurations of superdense matter with different versions of the equation of state. The possible existence of static superdense and supermassive configurations is established for all of the versions of the equation of state of superdense matter used. Translated from Astrofizika, Vol. 41, No. 1, pp. 131–135, January-March, 1998.  相似文献   

发达国家禁用（限用）含磷洗衣粉的措施   总被引：14，自引：3，他引：11  

舒金华  黄文钰 《湖泊科学》1998,10(1):90-96

在查阅国内外有关文献资料的基础上,对世界上主要发达国家－－美国,加拿大,日本,德国,英国和法国等,实施禁用（或限用）含磷洗衣粉措施的历史背景状况,实施后所取得的效果及当前存在的意见分岐作出简要的综述,结果表明,“禁磷”措施在洗衣粉中磷占入湖总磷量比例较大（２０％以上）,且目前难以兴建三级污水处理厂的湖区,对削减磷的负荷,减缓湖泊富营养化的进程,起到一定的积极作用,但解决富营养化问题的根本途径。  相似文献   

Meteorological modification of particulate air pollution and visibility patterns at Phoenix,Arizona     

Dr. Sh. B. Idso  Dr. K. R. Cooley 《Theoretical and Applied Climatology》1981,29(3):229-237

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