Results 91 to 100 of about 49,521 (293)
Improvement in the Tracking Performance of a Maneuvering Target in the Presence of Clutter. [PDF]
Sensors (Basel), 2022 Shah GA +5 more
europepmc +1 more source
Premission and postmission simulation studies of the foot-controlled maneuvering unit for Skylab experiment T-020 [PDF]
A Skylab experiment was conducted to study the maneuvering capabilities of astronauts using a relatively simple self-locomotive device, referred to as the foot-controlled maneuvering unit, and to evaluate the effectiveness of ground-based facilities ...
Glover, K. E., Hewes, D. E.
core +1 more source
Tunable High‐Performance Metamaterial Filters Based on Novel SRR Architectures
Advanced Science, EarlyView.Based on two novel SRR configurations and two independent SRR integration approaches, four tunable bandpass metamaterial filters were fabricated with an ultra‐thin ceramic substrate. Among them, SM‐2 achieves over 97% electromagnetic wave transmittance, with a minimal 1.15% deviation in its resonant frequency prediction, making them promising ...
Lingxi Qu +4 more
wiley +1 more source
Fuzzy logic control system to provide autonomous collision avoidance for Mars rover vehicle [PDF]
NASA is currently involved with planning unmanned missions to Mars to investigate the terrain and process soil samples in advance of a manned mission.
Murphy, Michael G.
core +1 more source
Advanced Science, EarlyView.Cuttlebone‐inspired architected metamaterials introduce controlled structural disorder to simultaneously enhance strength, energy absorption, and compressive stability. Tunable disorder suppresses shear anisotropy, outperforms periodic lattices, and establishes discrete randomness as a robust route to high‐performance lightweight mechanical ...
Zengqin Shi +7 more
wiley +1 more source
A Novel Adaptive Robust Cubature Kalman Filter for Maneuvering Target Tracking with Model Uncertainty and Abnormal Measurement Noises. [PDF]
Sensors (Basel), 2023 Ye X, Wang J, Wu D, Zhang Y, Li B.
europepmc +1 more source
An analog computer study of the effectiveness of interceptor commands derived from a prediction equation of second order [PDF]
Analog computer study of effectiveness of interceptor commands derived from prediction equation of second ...
Doolin, B. F., Mc Lean, J. D.
core +1 more source
Advanced Science, EarlyView.MERTK is upregulated in fibrotic macrophages and regulates the expression and activity of SRC and TKS5 through SPP1, mediating transdifferentiation of macrophages‐to‐myofibroblasts (MMT) and promoting pulmonary fibrosis. The figure was created with BioRender.com.
Yungeng Wei +3 more
wiley +1 more source
Anti‑acceleration Saturation Terminal Guidance Law Based on LSTM
Transactions of Nanjing University of Aeronautics and AstronauticsMissile acceleration saturation in a practical terminal guidance process may significantly reduce the interception performance. To solve this problem， this paper presents an anti-saturation guidance law with finite-time convergence for a three ...
LI Guilin, ZHOU Wei, ZHANG Jiarui
doaj +1 more source
Advanced Science, EarlyView.This study elucidates the mechanisms of subcellular multidimensional collapse in exhausted T cells. By specifically targeting the nucleus, mitochondria, and endoplasmic reticulum, strategic interventions can effectively remodel the compromised organelle network. This integrated approach drives comprehensive T cell resuscitation, ultimately establishing
Mingxing Wang +9 more
wiley +1 more source