Results 71 to 80 of about 25,829 (261)
Design of Attitude Control System of an Axisymmetric Satellite with Gravity Gradient Stabilization and Slow Spinning about Yaw Axis [PDF]
فصلنامه علوم و فناوری فضایی, 2008 Attitude control system of satellite with Gravity Gradient stabilization requires high moments of inertia ratio for providing stability and continuous orientation toward Earth.
H. Bolandi +2 more
doaj
Origin of global deep faults and their significance in Earth degasification
Мінеральні ресурси України, 2018 There are origin and formation conditions of global deep faults, their distribution patterns and also their importance in the Earth degasification from standpoint of conception of Earth Crust evolution dynamics (CECED) in article.
A. T. Akhverdiev
doaj +1 more source
Advanced Engineering Materials, EarlyView.Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati +11 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.This review comprehensively evaluates extrusion‐based additive manufacturing for advanced ceramics, detailing feedstock options and key process parameters. By critically addressing defect mechanisms like porosity and cracking, the work highlights optimization strategies through machine learning and advanced postprocessing.
Meisam Bakhtiari +4 more
wiley +1 more source
Contrasting responses to orbital precession on Titan and Earth
Geophysical Research Letters, 2016 Earth and Titan exhibit contrasting atmospheric responses to orbital precession. On Earth, most (water) precipitation falls in low latitudes, and precipitation is enhanced in a hemisphere when perihelion occurs in that hemisphere's summer. On Titan, most
Junjun Liu, Tapio Schneider
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ON SIMILARITIES BETWEEN THE EARTH ROTATION AND TEMPERATURE CHANGES
Odessa Astronomical Publications, 2012 Earths rotation reflects processes in the atmosphere, ocean, Earths interior. The similarities between the global temperature oscillations and Earths rotation speed changes are well known, but still are not explained.
L. V. Zotov
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Advanced Engineering Materials, EarlyView.Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt +5 more
wiley +1 more source
Earth, Planets and SpaceOur recent paper (Zeng et al. in Earth Planets Sp 76:20, 2024) presented a Dual Quaternion Algorithm (DQA) of 3D coordinate transformation in weighted total least squares (WTLS). Zeng et al.
Huaien Zeng +5 more
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The Rotation of the Earth [PDF]
Monthly Notices of the Royal Astronomical Society, 1926 The three fundamental units in physics, which form the basis of the c.g.s. system, are the centimetre, the unit of length; the gram, the unit of mass; and the second, the unit of time. Material standards of length and mass are provided by the International Prototype Metre and Kilogram, preserved at the International Bureau of Weights and Measures at ...
openaire +1 more source
Advanced Engineering Materials, EarlyView.Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees +6 more
wiley +1 more source