Results 31 to 40 of about 29,208 (260)

Portable cholesteric displays with high information content [PDF]

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2008
Issues connected with research and development of reflective displays, based on electro-optical effects of bistability in cholesteric liquid crystals (LC) are considered.
Rybalochka A. V.   +2 more
doaj  

Properties of dynamic magnetic loss of ferrite

open access: yesAIP Advances, 2018
The B-H loop of ferrite becomes narrower with a decrease in the excitation frequency. However, even at frequencies lower than 1 kHz, the B-H loop exhibits a certain minimum width, which is referred to as the (DC) hysteresis loop, and its area corresponds
Hideo Saotome   +3 more
doaj   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

Experimental Investigation on Limit Cycle Wing Rock Effect on Wing Body Configuration Induced by Forebody Vortices

open access: yesJournal of Aerospace Technology and Management, 2016
The purpose of this paper is to present the aerodynamic and flow characteristics of a slender body with a 30° swept wing configuration undergoing a limit cycle oscillation using a synchronous measurement and control technique of wing rock/particle image ...
Zhen Rong   +3 more
doaj   +3 more sources

Study on dynamic hysteresis characteristic modeling and parameter identification methods for high-voltage piezoelectric actuators

open access: yesXibei Gongye Daxue Xuebao
High-voltage piezoelectric actuators are widely used in the field of active vibration control of aerospace structures due to their advantages of strong load capacity, large nominal thrust, and fast response.
LI Weiguang   +4 more
doaj   +1 more source

Study on Dynamic Hysteretic and Loss Properties of Silicon Steel Sheet Under Hybrid Harmonic and DC Bias Excitation

open access: yesIEEE Access, 2020
The dynamic and static hysteresis properties as well as loss properties of grain oriented (GO) silicon steel sheet are measured under the AC-DC hybrid excitation containing both DC bias and harmonic components.
Xiaojun Zhao   +4 more
doaj   +1 more source

High-bandwidth modeling for rate-dependent hysteresis nonlinearity using a standard Prandtl–Ishlinskii model

open access: yesAIP Advances, 2021
Rate-dependent hysteresis of piezoelectric stack actuators (PSAs) is known to cause oscillations and instabilities. This paper introduces a novel electro-mechanical coupling model that can accurately characterize the high-bandwidth rate-dependent ...
Haigen Yang, Wei Zhu, Feifei Liu
doaj   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

open access: yesAdvanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora   +4 more
wiley   +1 more source

Neural network based identification of hysteresis in human meridian systems

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2012
Developing a model based digital human meridian system is one of the interesting ways of understanding and improving acupuncture treatment, safety analysis for acupuncture operation, doctor training, or treatment scheme evaluation.
Tan Yonghong   +3 more
doaj   +1 more source

Stochastic dynamics in quenched-in disorder and hysteresis [PDF]

open access: yesJournal of Applied Physics, 1999
The conditions under which relaxation dynamics in the presence of quenched-in disorder lead to rate-independent hysteresis are discussed. The calculation of average hysteresis branches is reduced to the solution of the level-crossing problem for the stochastic field describing quenched-in disorder.
G. BERTOTTI   +2 more
openaire   +3 more sources

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