Results 61 to 70 of about 1,939,111 (241)

An applied engineering approach to attitude and orbit representations for low-earth-orbiting rigid spacecraft: a comprehensive review

open access: yesFranklin Open
This article provides a thorough review of common spacecraft orbit, and attitude representations utilized for low-earth-orbiting rigid spacecraft. In addition, it presents various forms of spacecraft dynamics. Each representation and dynamic form has its
Tamer Mekky Ahmed Habib
doaj   +1 more source

EQUATIONS OF SPATIAL MOTION OF A SOLID BODY WITH MOLDABLE FASTENING TO THE FOUNDATION (THE TASK OF DEPRECIATION IN SPACE)

open access: yesАвіаційно-космічна техніка та технологія, 2020
The task of fastening equipment, especially ship equipment, is considered important in conditions of vibration and shock. Equipment can be mounted on shock absorbers.
Андрей Александрович Тарасенко   +1 more
doaj   +1 more source

Teleoperation of robots carrying current intensity via electromagnetic fields – A quantum mechanical analysis

open access: yesResults in Physics, 2019
The master robot carries a current which is modeled as the sum of a classical current Jmc(t,r) and a quantum fluctuation current described by the Dirac field ψm(t,r) of electrons and positrons.
Rohit Singla, Harish Parthasarathy
doaj   +1 more source

Geometrically exact planar Euler-Bernoulli beam and time integration procedure for multibody dynamics

open access: yesAdvanced Modeling and Simulation in Engineering Sciences, 2020
A new formulation of geometrically exact planar Euler-Bernoulli beam in multi-body dynamics is proposed. For many applications, the use of the Euler-Bernoulli model is sufficient and has the advantage of being a nodal displacement-only formulation ...
Carlo Sansour   +3 more
doaj   +1 more source

Local calibrations for minimizers of the Mumford-Shah functional with a triple junction

open access: yes, 2001
We prove that, if u is a function satisfying all Euler conditions for the Mumford-Shah functional and the discontinuity set of u is given by three line segments meeting at the origin with equal angles, then there exists a neighbourhood U of the origin ...
Mora, Maria Giovanna
core   +1 more source

The rational fragment of the ZX-calculus [PDF]

open access: yes, 2018
We introduce here a new axiomatisation of the rational fragment of the ZX-calculus, a diagrammatic language for quantum mechanics. Compared to the previous axiomatisation introduced in [8], our axiomatisation does not use any metarule , but relies ...
Jeandel, Emmanuel
core   +2 more sources

Сalculation and analysis of characteristic point trajectories for planetary bevel gears with precessing satellites [PDF]

open access: yesНаучно-технический вестник Брянского государственного университета
The article talks about research on the kinematics of precessing gears. The possible ways of precession generation based on the patent database are listed. A range of gearboxes with single-stage gears has been defined.
Vinnik P.M.   +2 more
doaj   +1 more source

Predicting airfoil stalling dynamics using upwind numerical solutions to non-viscous equations

open access: yesResults in Engineering, 2023
Over the last few decades, researchers have been focusing on determining the critical attack angle at which dynamic stall occurs. This angle is usually determined by solving the Navier-Stokes equations, which include viscosity, pressure, gravity, and ...
Tohid Adibi   +5 more
doaj   +1 more source

Dynamic control method of particle distribution uniformity in the rolling circulating fluidized bed (RCFB)

open access: yesEngineering Applications of Computational Fluid Mechanics, 2021
This paper mainly proposed a dynamic control method of particle distribution uniformity in a rolling circulating fluidized bed (RCFB) by using an air distribution plate. An Euler–Euler numerical simulation approach which is called two-fluid flow model is
Tong Zhao   +4 more
doaj   +1 more source

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