Results 41 to 50 of about 117,939 (362)
Elinvar Materials: Recent Progress and Challenges
Advanced Engineering Materials, EarlyView.Elinvar materials, exhibiting temperature‐invariant elastic modulus, are critical for precision instruments and emerging technologies. This article reviews recent progress in the field, with a focus on the anomalous thermoelastic behavior observed in key material systems.
Wenjie Li, Yang Ren
wiley +1 more source
Hybrid Electric Aircraft Propulsion Case Study for Skydiving Mission
Aerospace, 2017 This paper describes a case study for applying innovative architectures related to electrified propulsion for aircraft. Electric and hybrid electric propulsion for aircraft has gained widespread and significant attention over the past decade.
Richard Glassock +3 more
doaj +1 more source
Behavior tests of a new form of propulsion after ship reconstruction [PDF]
Scientific Technical Review, 2020 The subject of this paper is a detailed qualitative analysis maneuvering and propulsion characteristics of a special purpose river vessel "KOZARA" River war flotillas of the Serbian Army, after reconstruction and modernization.
Dauti Enis, Trifković Dragan
doaj +1 more source
Advanced Engineering Materials, EarlyView.This study investigates the tribological response of 60NiTi alloy under dry, water‐lubricated and high‐temperature conditions. The alloy exhibits decreasing wear volume and friction with increasing temperature due to the formation of protective oxide layers. The work clarifies dominant wear mechanisms and demonstrates the suitability of 60NiTi for high‐
Anthony Onyebuchi Okoani +2 more
wiley +1 more source
Design Tradeoffs in Full Electric, Hybrid and Full Chemical Propulsion Communication Satellite
Sakarya University Journal of Computer and Information Sciences, 2019 Full electric propulsion system becomes popular recently and getting more common in the communication satellite industry. Full electric or hybrid propulsion selection causes results in significant reduction in satellite propellant mass. Conventional full
Ü.cezmi Yılmaz, İbrahim Oz
doaj +1 more source
3D‐Printed Giant Magnetoresistive (GMR) Sensors Based on Self Compliant Springs
Advanced Engineering Materials, EarlyView.This work explores 3D‐printed GMR sensors utilizing self‐compliant spring structures and conductive PLA composites. By optimizing arm width, we achieved high piezoresistive (0.34%/mm) and magnetoresistive (0.77%/mT) sensitivities. Demonstrated through Bluetooth‐integrated pressure and magnetic position sensing, these full printed low‐cost, customizable
Josu Fernández Maestu +4 more
wiley +1 more source
Artificial three-body equilibria for hybrid low-thrust propulsion [PDF]
, 2008 This paper proposes a new concept of creating artificial equilibrium points in the circular restricted three body problem, where the third body uses a hybrid of solar sail and solar electric propulsion.
Baig, Shahid, McInnes, Colin R.
core +1 more source
Advanced Engineering Materials, EarlyView.This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal +2 more
wiley +1 more source
Drone Electric Propulsion System with Hybrid Power Source
DronesUnmanned aerial vehicles, known today as drones, in the beginning, were small-dimension research models powered by small electric motors fed from electrical batteries.
Jenica-Ileana Corcau +3 more
doaj +1 more source
IET Electric Power Applications, 2023 This paper proposes a dependent optimisation (DO) method for the dual‐contra‐rotating motor to improve the full‐cycle efficiency and increase the space utilizstion rate of the autonomous underwater vehicle (AUV).
Huanyu Ou +3 more
doaj +1 more source