Results 141 to 150 of about 491,279 (390)
A real time Pegasus propulsion system model for VSTOL piloted simulation evaluation [PDF]
A real time propulsion system modeling technique suitable for use in man-in-the-loop simulator studies was developd. This technique provides the system accuracy, stability, and transient response required for integrated aircraft and propulsion control ...
Creekmore, R. +2 more
core +1 more source
Discussion: “An Improved Method of Screw Propulsion” (Root, John B., 1881, Trans. ASME, 2, pp. 442–457) [PDF]
, 1881 Wolff +9 more
openalex +1 more source
Advanced Functional Materials, EarlyView.Heterojunctions combining halide perovskites with low‐dimensional materials enhance optoelectronic devices by enabling precise charge control and improving efficiency, stability, and speed. These synergies advance flexible electronics, wearable sensors, and neuromorphic computing, mimicking biological vision for real‐time image analysis and intelligent
Yu‐Jin Du +11 more
wiley +1 more source
Manned flying systems /mfs/ cryogenic engine [PDF]
Comparison of performance of cryogenic propulsion system with earth storable propulsion system for manned flying ...
Bhalla, L. M., Tatom, F. B.
core +1 more source
Swimming Efficiency of Bacterium Escherichia Coli
, 2005 We use in vivo measurements of swimming bacteria in an optical trap to determine fundamental properties of bacterial propulsion. In particular, we determine the propulsion matrix, which relates the angular velocity of the flagellum to the torques and ...
C. Yeung +12 more
core +2 more sources
Development of an Ultralight with a Ducted Fan
Acta Polytechnica, 2012 This paper introduces the UL-39 project, an ultralight aircraft with a ducted fan, and some of the problems that have arisen in the course of its development. Several problems with the design of a non-traditional aircraft of this kind are mentioned, e.g.
Jiří Brabec, Martin Helmich
doaj
Transient Stiffness Patterning in Hydrogels Driven by Dissipative Mechanochemical Coupling
Advanced Functional Materials, EarlyView.Force‐induced disulfide bond rupture in a polymer‐based hydrogel, coupled with chemical or electrochemical reoxidation, leads to the transient modulation of the hydrogel's stiffness properties. High spatiotemporal control is achieved by this dissipative process, enabling the development of out‐of‐equilibrium stiffness patterns and transient, dose ...
Roberto Baretta +2 more
wiley +1 more source
Frontiers in PhysiologyThe effect of gait feedback training for older people remains unclear, and such training methods have not been adapted in clinical settings. This study aimed to examine whether inertial measurement unit (IMU)-based real-time feedback gait for older ...
Takasuke Miyazaki +12 more
doaj +1 more source
Atomic Size Misfit for Electrocatalytic Small Molecule Activation
Advanced Functional Materials, EarlyView.This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong +3 more
wiley +1 more source