On the Attractive Force of an Elliptical Gaussian Ring     

Vashkov’yak  M. A. 《Solar System Research》2021,55(5):467-474

Solar System Research - A numerical-analytical method for analyzing the orbital evolution of a planetary satellite under the influence of a perturbing body moving in an elliptical orbit is...  相似文献   

Evaluating the Diffuse Runoff from Urban Territories in the Volga Basin: Case Study of Rostov City     

Bolgov  M. V.  Zav’yalova  E. V.  Zaitseva  A. V.  Osipova  N. V. 《Water Resources》2020,47(5):673-681

Water Resources - The study is focused on examining and simulating the formation processes of the runoff and pollution export in the case of Rostov (Rostov Velikii), a town in the Volga basin. The...  相似文献   

Equilibrium modeling of the beach profile on a macrotidal embayed low tide terrace beach     

Clara Lemos  France Floc’h  Marissa Yates  Nicolas Le Dantec  Vincent Marieu  Klervi Hamon  Véronique Cuq  Serge Suanez  Christophe Delacourt 《Ocean Dynamics》2018,68(9):1207-1220

Eleven-year long time series of monthly beach profile surveys and hourly incident wave conditions are analyzed for a macrotidal Low Tide Terrace beach. The lower intertidal zone of the beach has a pluriannual cycle, whereas the upper beach profile has a predominantly seasonal cycle. An equilibrium model is applied to study the variation of the contour elevation positions in the intertidal zone as a function of the wave energy, wave power, and water level. When forcing the model with wave energy, the predictive ability of the equilibrium model is around 60% in the upper intertidal zone but decreases to 40% in the lower intertidal zone. Using wave power increases the predictive ability up to 70% in both the upper and lower intertidal zones. However, changes around the inflection point are not well predicted. The equilibrium model is then extended to take into account the effects of the tide level. The initial results do not show an increase in the predictive capacity of the model, but do allow the model free parameters to represent more accurately the values expected in a macrotidal environment. This allows comparing the empirical model calibration in different tidal environment. The interpretation of the model free parameter variation across the intertidal zone highlights the behavior of the different zones along the intertidal beach profile. This contributes to a global interpretation of the four model parameters for beaches with different tidal ranges, and therefore to a global model applicable at a wide variety sites.  相似文献   

Structure of Prominences with Normal and Inverse Polarities     

Korolkova  O. A.  Solov’ev  A. A. 《Geomagnetism and Aeronomy》2019,59(7):858-863

Geomagnetism and Aeronomy - Based on the measurements of their magnetic fields, solar prominences can be divided into two types: filaments with normal (N) or inverse (I) polarity. In an N-type...  相似文献   

Solar System Collisions with Dense Interstellar Gas Clouds and Radiocarbon Traces of Periods with “Abnormally Low” Solar Modulation of Cosmic Rays     

Vasil’ev  G. I.  Konstantinov  A. N.  Kudryavtsev  I. V.  Ogurtsov  M. G.  Ostryakov  V. M.  Pavlov  A. K.  Frolov  D. A. 《Geomagnetism and Aeronomy》2019,59(8):1075-1080

Geomagnetism and Aeronomy - The causes of a sharp increase in the radiocarbon content in the Earth’s atmosphere for periods with abnormally low solar modulation of galactic cosmic rays (GCRs)...  相似文献   

Changes in the Period of Negative Superhumps of Type SU UMa Dwarf Novae. II. NY Her (2017 and 2020)     

Pavlenko  E. P.  Sosnovskii  A. A.  Antonyuk  K. A.  Antonyuk  O. I.  Pit’  N. V.  Kokhirova  G. I.  Rakhmatullaeva  F. J.  Baklanov  A. V. 《Astrophysics》2021,64(3):293-305

Astrophysics - Photometric studies of the type SU UMa dwarf nova NY Her were made during 2017 and 2020 at the Crimean Astrophysical Observatory and at the Sanglokh Observatory over a total of 77...  相似文献   

Estimation of the Ionospheric Effects of Geomagnetic Disturbances Based on Data from Wakkanai Station     

Legen’ka  A. D.  Khegai  V. V. 《Geomagnetism and Aeronomy》2020,60(5):577-585

Geomagnetism and Aeronomy - Ionosonde measurements of the critical frequency of the ionospheric F2 layer (foF2) at Wakkanai station (Japan) are analyzed with the method of superposed epochs. The...  相似文献   

A feasible approach to predicting time-dependent bearing performance of jacked piles from CPTu measurements     

Li  Lin  Li  Jingpei  Sun  De’an  Gong  Weibing 《Acta Geotechnica》2020,15(7):1935-1952

Acta Geotechnica - In this paper, a simple but feasible approach is proposed to predict the time-dependent load carrying behaviours of jacked piles from CPTu measurements. The corrected cone...  相似文献   

Traces of Seismic Activity in Architectural Monuments in Derbent,Dagestan     

Korzhenkov  A. M.  Gadzhiev  M. S.  Ovsyuchenko  A. N.  Lar’kov  A. S.  Rogozhin  E. A. 《Izvestiya Atmospheric and Oceanic Physics》2020,56(7):633-656

Izvestiya, Atmospheric and Oceanic Physics - As a result of studies conducted in the city of Derbent, it is established that its monumental fortification structures erected at the end of the 560s...  相似文献   

Ecological–Microbiological Studies of Lake Beloe in Winter and Spring with the Use of Innovation Test-Systems     

Mosharova  I. V.  Il’inskii  V. V.  Mosharov  S. A.  Akulova  A. Yu. 《Water Resources》2019,46(6):959-965

Water Resources - Chlorophyll a concentration, the total abundance of bacteria, the number of bacterial cells with active metabolism, and the abundance of saprotrophic bacteria were studied in the...  相似文献