Results 91 to 100 of about 2,182,834 (296)
Unscented Kalman Filter Applied to the Spacecraft Attitude Estimation with Euler Angles
, 2012 The aim of this work is to test an algorithm to estimate, in real time, the attitude of an artificial satellite using real data supplied by attitude sensors that are on board of the CBERS-2 satellite (China Brazil Earth Resources Satellite).
R. V. Garcia, H. K. Kuga, M. Zanardi
semanticscholar +1 more source
Analysis of conditions for operating the S193 Rad/Scat in the solar pointing mode [PDF]
The S193 Rad/Scat, although initially programmed for operating in the earth pointing mode, can be operated in the solar pointing mode as well. The usual coordinate systems for describing the S193 in orbit are defined.
Pintar, J., Sobti, A.
core +1 more source
Bioinspired Adaptive Leg‐Claw Enables Robust Perching and Grasping for UAVs
Advanced Science, EarlyView.Inspired by owl limb morphology and bat roosting behavior, this study presents a bioinspired adaptive leg‐claw mechanism that enables UAVs to perform robust and versatile perching and grasping. The design integrates a four‐link tibial structure, tension‐driven deformable feet, and active control, enabling stable perching on various branches and ...
Tianyu Cheng +6 more
wiley +1 more source
Pellet Printing for Soft Robotic Devices
Advanced Science, EarlyView.Fused Granulate Fabrication (FGF) is established here as a reliable method for fabricating soft, airtight robotic devices. Through coordinated optimization of hardware, material selection, and process parameters, this approach enables high‐speed printing of thermoplastic elastomers with silicone‐like softness and modulus.
Yijia Wu +6 more
wiley +1 more source
Two-Level Optimal Controller Design Based on PSO and Adaptive Control for Satellite Simulator System [PDF]
فناوری در مهندسی هوافضاThis paper presents an adaptive inverse dynamic control method based on the Particle Swarm Optimization (PSO) algorithm to control the Euler angles of a three-degree-of-freedom satellite simulator platform with uncertain parameters. The controller design
Alireza Ahangarani Farahani +2 more
doaj +1 more source
Advanced Science, EarlyView.A real‐time, non‐contact photoplethysmography (PPG) system based on InAs colloidal quantum dots (CQDs) synthesized via a seedless injection synthesis is demonstrated. The measured oxygen saturation shows considerable agreement with commercial PPG devices.
Beom Kwan Kim +8 more
wiley +1 more source
On the works of Euler and his followers on spherical geometry [PDF]
, 2014 We review and comment on some works of Euler and his followers on spherical geometry. We start by presenting some memoirs of Euler on spherical trigonometry. We comment on Euler's use of the methods of the calculus of variations in spherical trigonometry.
Papadopoulos, Athanase
core
Eulerian Rotations of Deformed Nuclei for TDDFT Calculations
, 2014 We discuss three practical methods for performing Eulerian rotations of Slater determinants in a three-dimensional Cartesian geometry. In addition to the straightforward application of the active form of the quantum mechanical rotation operator, we ...
Oberacker, V. E. +2 more
core +1 more source
Advanced Science, EarlyView.This work provides a practical guide for neuroengineers to design advanced neural interfaces, embracing and tailoring the concept of functional disorder. By bridging 2D and 3D in vitro models, this work highlights how non‐periodic, spatially heterogeneous, multiscale nanotopography can enable more physiologically relevant platforms for studying neural ...
F. Maita +4 more
wiley +1 more source
Modeling Stiffness and Damping in Rotational Degrees of Freedom Using Multibond Graphs [PDF]
, 2013 A contribution is proposed for the modeling of mechanical systems using multibond graphs. When modeling a physical system, it may be needed to catch the dynamic behavior contribution of the joints between bodies of the system and therefore to ...
BARRE, Pierre-Jean +3 more
core +3 more sources