Results 51 to 60 of about 12,105 (295)
Advanced Engineering Materials, EarlyView.This work explores the reduction of nickel oxide layers using dielectric barrier discharge plasma in an argon–hydrogen atmosphere. The results reveal a strong temperature dependence, enabling complete reduction of thick oxide layers at 200°C within seconds.
Maria Argirusi +5 more
wiley +1 more source
About ideal relative motions of rigid heavy body [PDF]
INCAS Bulletin, 2017 Consider an origin which is fixed at the Earth’s surface, and a rectangular celestial coordinates axes with this origin. The gravity acceleration is the approximate sum of the centrifugal acceleration of the origin relatively to the Earth’s center and ...
Nicolae MARCOV
doaj +1 more source
Advanced Engineering Materials, EarlyView.The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu +8 more
wiley +1 more source
Objective Liutex from Flow Data Measured in a Non-Inertial Frame
FluidsObjectivity is a fundamental requirement for vortex identification, ensuring that vortex structures observed remain invariant under changes in the reference frame.
Yifei Yu, Oscar Alvarez, Chaoqun Liu
doaj +1 more source
Sensors, 2022 To solve the problem of high-precision and fast initial alignment for the Strapdown Inertial Navigation System (SINS) under both dynamic and static conditions, the high-precision attitude measured by the celestial navigation system (CNS) is used as the ...
Jun Tang +3 more
doaj +1 more source
Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere
Advanced Engineering Materials, EarlyView.In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May +9 more
wiley +1 more source
Application of Space-Based Orientation Observation in Orbit Determination of BeiDou Satellites
AerospaceWhen a navigation constellation depends exclusively on inter-satellite links for autonomous orbit determination, the absence of inertial frame orientation measurements can result in the accumulation of rotational errors across the entire constellation ...
Xiaojie Li +7 more
doaj +1 more source
External Velocity Aided Coarse Attitude and Position Alignment for Dynamic SINS
IEEE Access, 2018 This paper concerns about the dynamic alignment for the strapdown inertial navigation system (SINS), especially in the case of no GPS assistance. A novel coarse alignment algorithm using external reference velocity in b-frame is proposed.
Shiluo Guo, Jiangning Xu, Hongyang He
doaj +1 more source
The Gaia inertial reference frame and the tilting of the Milky Way disk
, 2014 While the precise relationship between the Milky Way disk and the symmetry planes of the dark matter halo remains somewhat uncertain, a time-varying disk orientation with respect to an inertial reference frame seems probable.
Perryman, Michael +2 more
core +1 more source
On fluid flows in precessing spheres in the mantle frame of reference [PDF]
, 2010 Copyright © 2010 American Institute of PhysicsWe investigate, through both asymptotic and numerical analysis, precessionally driven flows of a homogeneous fluid confined in a spherical container that rotates rapidly with angular velocity Ω and precesses ...
Chan, Kit H. +10 more
core +1 more source