Results 91 to 100 of about 93,534 (317)
Jixie chuandong, 1997 This paper analyzes the profile curve of cycloid nutation gear by using the spherical trigonometry theory,derives relative profile equation,and presents the basic parameters and main measurement.All of this are the necessary basis for cycloid nutation ...
何韶君, 赵清
doaj
Spin Nutation Induced by Atomic Motion in a Magnetic Lattice
, 2010 An atom moving in a spatially periodic field experiences a temporary periodic perturbation and undergoes a resonance transition between atomic internal states when the transition frequency is equal to the atomic velocity divided by the field period.
A. Hatakeyama +9 more
core +1 more source
The Role of Certifications in Improving Household Food Security Among Peruvian Farmers
Agribusiness, EarlyView.ABSTRACT Achieving global food security requires sustainable transformations in agri‐food systems. Voluntary Sustainability Standards (VSS) such as Organic and Fairtrade aim to internalize certain social and environmental costs while promoting more equitable value distribution, improved market access, and sustainable production practices.
Lisa‐Marie Schulte, Awudu Abdulai
wiley +1 more source
Nutation damping of dynamically tuned gyroscopes
MATEC Web of Conferences, 2017 The paper deals with the problem of nutation damping of dynamically tuned gyroscopes (DTG). Unlike the common two-axis gyroscopes, the DTG damping torques caused by dry and viscous frictions are absent in gimbal bearings, while those due to the rotor ...
Belyanin Lev, Vu Doan Ket
doaj +1 more source
Three-dimensional rotation of even-even triaxial nuclei
, 2003 With the self-consistent three-dimensional cranked Hartree-Fock-Bogoliubov (3d-cranked HFB) method, various types of rotational motion near the yrast line are investigated in an even-even nucleus in the $A\simeq 130$ mass region ($^{134}_{58}$Ce$_{76}$).
Baranger +18 more
core +1 more source
Advanced Intelligent Discovery, EarlyView.Chat computational fluid dynamics (CFD) introduces an large language model (LLM)‐driven agent that automates OpenFOAM simulations end‐to‐end, attaining 82.1% execution success and 68.12% physical fidelity across 315 benchmarks—far surpassing prior systems.
E Fan +8 more
wiley +1 more source
AIP Advances, 2019 The known publications of the gyroscope property of maintaining its axis are represented by simplified mathematical models formulated on the law of kinetic energy conservation and the action of an inertial torque expressed by the change in the angular ...
R. Usubamatov
doaj +1 more source
The SAS-D nutation control system [PDF]
A control law is developed for the SAS-D nutation control system. Nutation is removed in a sub-optimal manner with respect to fuel consumed, but attitude errors are minimized.
Taylor, J. M.
core +1 more source
, 2009 We describe two different nuclear quadrupole resonance (NQR) based techniques, designed to measure the local asymmetry of the internal electric field gradient, and the tilt angle of the main NQR principal axis z from the crystallographic axis c.
A. J. Vega +4 more
core +1 more source
The Global S$$_1$$1 Tide in Earth’s Nutation
, 2016 Diurnal S$$_1$$1 tidal oscillations in the coupled atmosphere–ocean system induce small perturbations of Earth’s prograde annual nutation, but matching geophysical model estimates of this Sun-synchronous rotation signal with the observed effect in ...
M. Schindelegger +3 more
semanticscholar +1 more source