Results 31 to 40 of about 88,997 (305)

Multi-objective optimization of power distribution of hybrid power source based on differential evolution algorithm

open access: yesXibei Gongye Daxue Xuebao, 2022
The hybrid power source needs to achieve the excellent power distribution control to enhance the vehicle performance, the optimization algorithm can automatically seek the optimal target according to vehicle requirements to achieve the best power ...
ZHANG Guofei   +5 more
doaj   +1 more source

Analyses of the Design of Multirows Vaneless Staggered Counter-Rotating Turbine

open access: yesInternational Journal of Aerospace Engineering, 2022
Compared with a conventional turbine, counter rotating turbine has larger thrust weight ratio, shorter axial distance, and higher efficiency. It has been widely used in high-performance aviation.
Zhongye Wu   +3 more
doaj   +1 more source

Microstructure refinement-homogenization and flexural strength improvement of Al2O3 ceramics fabricated by DLP-stereolithography integrated with chemical precipitation coating process

open access: yesJournal of Advanced Ceramics, 2021
In this study, the chemical precipitation coating (CP) process was creatively integrated with DLP-stereolithography based 3D printing for refining and homogenizing the microstructure of 3D printed Al2O3 ceramic. Based on this novel approach, Al2O3 powder
Guanglin Nie   +8 more
doaj   +1 more source

Design and Analysis of XY Large Travel Micro Stage Based on Secondary Symmetric Lever Amplification

open access: yesMicromachines, 2023
This study presents a newly developed piezoelectric drive mechanism for the purpose of designing, analyzing, and testing a micro-positioning platform driven by piezoelectric actuators.
Tao Zhang   +6 more
doaj   +1 more source

Electromechanical magnetization switching [PDF]

open access: yesJournal of Applied Physics, 2015
We show that the magnetization of a torsional oscillator that, in addition to the magnetic moment also possesses an electrical polarization, can be switched by the electric field that ignites mechanical oscillations at the frequency comparable to the frequency of the ferromagnetic resonance. The 180° switching arises from the spin-rotation coupling and
Eugene M. Chudnovsky, Reem Jaafar
openaire   +2 more sources

Force feedback linearization for higher-order electromechanical sigma-delta modulators.

open access: yes, 2005
A higher-order electromechanical sigma–delta modulator can greatly improve the signal-to-noise ratio compared with a second-order loop that only uses the sensing element as a loop filter.
Redman-White, William   +2 more
core   +1 more source

Origins of Negative and Positive Electromechanical Response of Oligopeptide Piezoelectrics [PDF]

open access: yes, 2019
In response to an applied electric field, materials and even individual molecules can exhibit electromechanical response. Previous work has demonstrated the piezoelectric distortion of polar organic crystals, biomaterials, and even single molecular ...
Ni Nyoman D., Gayatri   +1 more
core   +1 more source

Electromechanical reciprocity and arrhythmogenesis in long-QT syndrome and beyond. [PDF]

open access: yes, 2022
An abundance of literature describes physiological and pathological determinants of cardiac performance, building on the principles of excitation-contraction coupling.
Ter Bekke, Rachel M A   +5 more
core   +2 more sources

Impact of MgO Additions on the Oxidation Resistance and Compression Behavior of Vanadium Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
An increase in oxidation resistance at 600 °C is achieved for alloys containing more than 2.5 wt.% MgO. It has been established that, along with V2O5, MgO6V2, and Mg2O7V2 are formed, which are presumed to enhance oxidative stability. Furthermore, the possible transformation of Mg‐vanadates through reaction with CO2, which presumably occurs in this ...
Ievgen Solodkyi   +5 more
wiley   +1 more source

Continuous-variable electromechanical quantum thermal transistors

open access: yesNew Journal of Physics
We present a scheme to realize quantum thermal transistor effects in a continuous-variable electromechanical system including two microwave cavities and one mechanical oscillator.
Wenjie Nie   +4 more
doaj   +1 more source

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