Results 51 to 60 of about 14,305 (291)

Research on Variable Baseline Coherent Angle Measurement Based on Nutation Scanning

Photonics
In inter-satellite laser communication systems, angular deviations between the boresights of terminals exert an impact on system performance, thereby imposing higher requirements on performance parameters such as the angle measurement accuracy and range ...
Dixiang Zeng, Xiaonan Yu, Ziqi Zhang, Peng Lin, Rui Weng, Wenfang Jiao, Shoufeng Tong   +6 more
doaj   +1 more source

Numerical study of spin-dependent transition rates within pairs of dipolar and strongly exchange coupled spins with (s=1/2) during magnetic resonant excitation

, 2012
The effect of dipolar and exchange interactions within pairs of paramagnetic electronic states on Pauli-blockade-controlled spin-dependent transport and recombination rates during magnetic resonant spin excitation is studied numerically using the ...
Baker, W. J., Boehme, C., Lee, S. -Y., Limes, M. E., Saam, B., Wang, J.   +5 more
core   +1 more source

On the eve of the 100th anniversary of IAU Commission 19/A2 “Rotation of the Earth” [PDF]

, 2018
Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence
Brzeziński, Aleksander, Capitaine, Nicole, Dehant, Véronique, Gross, Richard, Huang, Chengli, Malkin, Zinovy, McCarthy, Dennis, Schuh, Harald, Vondrák, Jan, Yatskiv, Yaroslav   +9 more
core   +1 more source

Microfluidic Engineering of Chitosan‐Coated Nanoemulsions for Controlled Release and Stability in Space Pharmaceutics

Advanced Materials Technologies, EarlyView.
Microfluidic engineering enables the fabrication of chitosan‐coated, melatonin‐loaded nanoemulsions with controlled release and enhanced physicochemical stability for space pharmaceutics. Interfacial biopolymer coating modulates droplet behavior under accelerated thermal stress and simulated microgravity.
Modupe Adebowale, Nguyen Van Duc Long, Philip M Williams, Volker Hessel   +3 more
wiley   +1 more source

Chandler Wobble and Free Core Nutation: Theory and Features

Journal of Astronomy and Space Sciences, 2019
Being a torque free motion of the rotating Earth, Chandler wobble is the major component in the Earth’s polar motion with amplitude about 0.05-0.2 arcsec and period about 430-435 days.
Sungho Na, Kyoung-Min Roh, Jungho Cho
doaj   +1 more source

Fully 3D‐Printed Wave‐Wound Electromagnetic Motors

Advanced Materials Technologies, EarlyView.
This work presents the first fully 3D‐printed wave‐wound electromagnetic motors, which are created using conductive nanoparticle inks, carbon‐filled nylon polymers, and surface mount components. These motors can achieve a stall torque of 7.62N·mmA−1$7.62 \nobreakspace N{\cdot }mm A^{-1}$ and efficiency of 28.2 %, which approaches the performance of ...
Joseph Schwalbe, Sebastian Mettes, Eduardo Francke, Kenneth W. Allen, Yi Chen Mazumdar   +4 more
wiley   +1 more source

Nutation in Space and Diurnal Nutation in the Case of an Elastic Earth [PDF]

Symposium - International Astronomical Union, 1979
In order to improve the representation of nutation, the effect of elasticity of the Earth on the nutation in space and diurnal nutation of the terrestrial rotation axis is considered and its amplitude is evaluated for the principal terms. The choice between several methods taking this effect into account is discussed.
openaire   +1 more source

UTact: Underwater Vision‐Based Tactile Sensor with Geometry Reconstruction and Contact Force Estimation

Advanced Robotics Research, EarlyView.
Embedded flexible sensing technologies advance underwater soft robotics, yet most systems still suffer from hysteresis and limited perceptiveness. Instead, vision‐based tactile sensors provide reliable and rapid feedback essential for complex underwater tasks.
Qiyi Zhang, Zonghao Zuo, Haoxuan Wang, Bin Liu, Yilidusi Yilihamu, Li Wen   +5 more
wiley   +1 more source

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, C. Kittel, H. F. Krause, P. Meystre, V. V. Okorokov, V. V. Okorokov, V. V. Okorokov, V. V. Okorokov, Y. Kobayashi, Y. Shiraishi   +9 more
core   +1 more source

The Nutation of Helianthus [PDF]

Botanical Gazette, 1900
Volume: 29 ; Start Page: 197 ; End Page ...
openaire   +1 more source