Results 51 to 60 of about 2,787,600 (274)

A correction method of spin-stabilized satellites attitude control based on infrared benchmark

Dianzi Jishu Yingyong, 2019
Aiming at the problem that there is a large deviation of the spin-stabilized satellite using infrared benchmark for attitude controlling, the control theory of isoclinic angle is described firstly, the difference between the solar reference and infrared ...
Zhou Jinbiao, Li Yonggang, Guo Libing, Li Xiangming, Mao Wen   +4 more
doaj   +1 more source

A comparison of head and manual control for a position-control pursuit tracking task [PDF]

, 1981
Head control was compared with manual control in a pursuit tracking task involving proportional controlled-element dynamics. An integrated control/display system was used to explore tracking effectiveness in horizontal and vertical axes tracked singly ...
Arbak, C., Levison, W. H., Monk, D., Porterfield, J. L., Zacharias, G. L.   +4 more
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

Leveraging Machine Learning Classifiers in Transfer Learning for Few-Shot Modulation Recognition

Sensors
The rapid advancement of communication systems has heightened the demand for efficient and robust modulation recognition. Conventional deep learning-based methods, however, often struggle in practical few-shot scenarios where acquiring sufficient labeled
Song Li, Yong Wang, Jun Xiong, Xia Wang
doaj   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

FEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source

Fast 2D DOA Estimation Algorithm by an Array Manifold Matching Method with Parallel Linear Arrays

Sensors, 2016
In this paper, the problem of two-dimensional (2D) direction-of-arrival (DOA) estimation with parallel linear arrays is addressed. Two array manifold matching (AMM) approaches, in this work, are developed for the incoherent and coherent signals ...
Lisheng Yang, Sheng Liu, Dong Li, Qingping Jiang, Hailin Cao   +4 more
doaj   +1 more source

Global capabilities of BeiDou Navigation Satellite System

Satellite Navigation, 2020
The BeiDou Navigation Satellite System (BDS) has completed the constellation deployment and started to provide global services. After achieving the capabilities of global coverage, global first-class accuracy for Positioning, Navigation and Timing (PNT),
Jun Lu, Xia Guo, Chengeng Su
doaj   +1 more source

Performance Improvement for Single-Photon LiDAR with Dead Time Selection

International Journal of Aerospace Engineering, 2022
Compared with the impulse LiDAR, the single-photon LiDAR has higher measurement sensitivity in the prominent feature, especially for space-based long-distance imaging.
Lei Feng, Fenglin Wang, Meng An, Qiang Zhang   +3 more
doaj   +1 more source

A study in the cognition of individuals’ identity: Solving the problem of singular cognition in object and agent tracking [PDF]

, 2007
This article compares the ability to track individuals lacking mental states with the ability to track intentional agents. It explains why reference to individuals raises the problem of explaining how cognitive agents track unique individuals and in what
Bullot, Dr. Nicolas, Rysiew, Dr. Patrick
core   +1 more source

Crosstalk between the ribosome quality control‐associated E3 ubiquitin ligases LTN1 and RNF10

FEBS Letters, EarlyView.
Loss of the E3 ligase LTN1, the ubiquitin‐like modifier UFM1, or the deubiquitinating enzyme UFSP2 disrupts endoplasmic reticulum–ribosome quality control (ER‐RQC), a pathway that removes stalled ribosomes and faulty proteins. This disruption may trigger a compensatory response to ER‐RQC defects, including increased expression of the E3 ligase RNF10 ...
Yuxi Huang, Satoshi Hashimoto, Sota Ito, Chisato Kikuguchi, Miho Hoshi, Kiyoshi Yamaguchi, Yoichi Furukawa, Toru Suzuki, Toshifumi Inada   +8 more
wiley   +1 more source