Results 81 to 90 of about 358,370 (301)
The equations of medieval cosmology
, 2008 In Dantean cosmography the Universe is described as a series of concentric spheres with all the known planets embedded in their rotation motion, the Earth located at the centre and Lucifer at the centre of the Earth.
Buonanno, Roberto, Quercellini, Claudia
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Advanced Engineering Materials, EarlyView.Microstructural evolution and hardness optimization along the cross‐section of friction stir welded AA6061/AlSi10MgMn joints, for electric vehicle battery housings, were investigated. Postweld aging between 170°C and 220°C enhances hardness uniformity within the nugget zone.
Emanuele Ghio, Emanuela Cerri
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Earth rotation and core topography [PDF]
The NASA Geodynamics program has as one of its missions highly accurate monitoring of polar motion, including changes in length of day (LOD). These observations place fundamental constraints on processes occurring in the atmosphere, in the mantle, and in
Clayton, Robert W. +2 more
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, 2013 We present new lightcurve measurements of Comet 10P/Tempel 2 carried out with Lowell Observatory's Discovery Channel Telescope in early 2013 when the comet was at aphelion.
Knight, Matthew M. +2 more
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Advanced Engineering Materials, EarlyView.In this experimental study, the mechanical properties of additively manufactured Ti‐6Al‐4V lattice structures of different geometries are characterized using compression, four point bending and fatigue testing. While TPMS designs show superior fatigue resistance, SplitP and Honeycomb lattice structures combine high stiffness and strength. The resulting
Klaus Burkart +3 more
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Changes in the Earth's rotational velocity and figure deformation associated with them
Учёные записки Казанского университета: Серия Физико-математические науки, 2020 It is established that continuous changes of angular velocity of rotation of the plastically-elastic Earth should cause the continuous coupled deformation of a crustal layer, redistribution of masses in a sub-crustal layer and the change of density ...
V.Yu. Belashov +2 more
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Advanced Engineering Materials, EarlyView.The results demonstrate a simulation‐driven workflow that applies LSB topology optimization with additive manufacturing constraints to mission‐specific load cases, integrating European Cooperation for Space Standardization compliant verification and manufacturability to develop structurally efficient rover suspension components.
Stelios K. Georgantzinos +11 more
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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
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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
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Change of world-record rankings of shot put and hammer throw due to the effects of Earth rotation and athlete's height. [PDF]
Sci Rep, 2023 Horváth G, Hegedűs D, Slíz-Balogh J.
europepmc +1 more source