Results 11 to 20 of about 14,983 (246)

Determination of coordinates of the earthquake hypocenter by the method of circles

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2021
Objective. The aim of the study is to develop a method for determining the coordinates of the earthquake hypocenter using various combinations of second and fourth order figures as a geo-locus of the hypocenter position points.Method.
G. K. Aslanov, T. G. Aslanov
doaj   +1 more source

Quadratic Hyperboloids in Minkowski Geometries

open access: yesMediterranean Journal of Mathematics, 2022
AbstractA Minkowski plane is Euclidean if and only if at least one hyperbola is a quadric. We discuss the higher dimensional consequences too.
Árpád Kurusa, József Kozma
openaire   +2 more sources

Determination of coordinates of the earthquake hypocenter with a known structure of the earth's crust

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2022
Objective. The aim of the study is to develop methods for determining the coordinates of the hypocenter of an earthquake with a known structure of the earth's crust. Method.
T. G. Aslanov, Yu. A. Sidorkina
doaj   +1 more source

Methods of Designing Gear’s Machining Tools with the Hyperboloid Cutting Part

open access: yesJournal of Mechanical Engineering, 2020
The technique of obtaining a hyperboloidal gear engagement with linear contact between a cylindrical involute wheel and a hyperboloid producing worm is considered.
Boris Vorontsov   +6 more
doaj   +1 more source

DETERMINATION OF EARTHQUAKE FOCUS COORDINATES USING THE CASSINI OVAL METHOD WITH SECOND- AND FOURTH-ORDER HYPERBOLA FIGURES

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2020
Objectives. To study the dependencies obtained when determining the coordinates of an earthquake hypocentre using the figures of fourth and second orders.Method.
B. I. Shakhtarin   +2 more
doaj   +1 more source

Design Optimization of Hyperboloid Wooden House Concerning Structural, Cost, and Daylight Performance

open access: yesBuildings, 2022
The use of parametric and multi-objective optimization (MOO) as a new way of approaching architectural design has been growing in line with current breakthroughs in computational architecture.
Rendy Perdana Khidmat   +2 more
doaj   +1 more source

Electrostatic interaction between Interball-2 and the ambient plasma. 2. Influence on the low energy ion measurements with Hyperboloid [PDF]

open access: yesAnnales Geophysicae, 2002
The measurement of the thermal ion distributions in space is always strongly influenced by the ion motion through the complex 3D electrostatic potential structure built around a charged spacecraft.
M. Hamelin   +8 more
doaj   +1 more source

Method of spatial cross-coupling elimination of control system channels for object guidance using two TDoA measurements

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2023
The problem of object guidance to the target point using two time difference of arrival (TDoA) measurements obtained from three navigation positions is considered.
V. V. Legkostup
doaj   +1 more source

b-Contact structures on tentacular hyperboloids

open access: yesJournal of Geometry and Physics, 2023
This paper connects two different approaches to the analysis of Hamiltonian dynamics on non-compact energy hypersurfaces - $b$-symplectic geometry with its singular symplectic form and Floer techniques for tentacular Hamiltonians. More precisely, we show how to equip tentacular hyperboloids with a $b$-contact structure.
M. Vogel, J. Wiśniewska
openaire   +3 more sources

The Hyperboloidal Universe

open access: yesSSRN Electronic Journal, 2022
This paper investigates a relativistic model of the Universe in which the geometry describes a 4D version of the 2-sheeted hyperboloid that is isotropic, homogeneous in space at a given time and inhomogeneous in time. The internal Schwarzschild metric is used for this model, which is justified by the fact that spherically-symmetric empty spaces in the ...
openaire   +1 more source

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