Results 101 to 110 of about 2,185,278 (306)

Elastocaloric effect and superelastic stability in Ni–Mn–In–Co polycrystalline Heusler alloys: hysteresis and strain-rate effects

Scientific Reports, 2017
Controlling material hysteresis and working frequency variability are fundamentally important for refrigeration cycle efficiency and power density in solid-state cooling systems. For elastocaloric cooling, understanding the relationship between the width
Binfeng Lu, Jian Liu
doaj   +1 more source

Hysteresis in Unemployment [PDF]

The recent European experience of high persistent unemployment has led to the development of theories of unemployment hysteresis embodying the idea that the equilibrium unemployment rate depends on the history of the actual unemployment rate.
Olivier J. Blanchard, Lawrence H. Summers   +1 more
core  

An Electrowetting Pump

Advanced Functional Materials, EarlyView.
A tubular electrowetting pump moves alternating droplets through a millimeter‐wide channel in discrete, reversible steps, functioning as a fluidic stepper motor. With no moving parts and electrodes insulated from the liquid, it delivers silent, accurate flow. Flexibility allows the pump to be woven directly into textiles for wearable, medical, and soft‐
Robert Hennig, Herbert Shea
wiley   +1 more source

Predicting core losses in power converters based on open source database

IET Power Electronics
Core losses are closely related to flux densities, frequencies, temperatures, exciting waveforms, and DC biases. Hysteresis losses and dynamic losses are considered the main components of core losses.
Yan Zhou, Minmin Zhang
doaj   +1 more source

Connection of surface roughness to hysteresis loss in spine implants

Journal of Biomechanical Science and Engineering, 2015
To investigate roughness effect in spine implant, a contact model is offered in this paper. The contact surfaces are modeled macroscopically as semi-spherical containing micro-scale roughness.
Mohammad HODAEI, Kambiz FARHANG
doaj   +1 more source

Spin Dynamics in the van der Waals Ferromagnet CrTe2 Engineered by Niobium Doping

Advanced Functional Materials, EarlyView.
Spin‐dynamic magnetic properties of van der Waals (vdW) ferromagnet 1T‐CrTe2 are tuned via niobium (Nb) as Cr1‐xNbxTe2 (x = 0–0.2). Nb doping enables wide‐band tuning of the resonance frequency from 40 GHz down to the few‐GHz regime, accompanied by a moderate increase in the Gilbert damping from ∼0.066 to ∼0.14.
Dhan Raj Lawati, Prem Bahadur Karki, Jitender Kumar, Karishma Prasad, Mohamed A. Elekhtiar, Kai Huang, Bibek Tiwari, Suvechhya Lamichhane, Rupak Timalsina, Zane Hubble, Ayodimeji E. Aregbesola, John Watt, Sy‐Hwang Liou, Evgeny Y. Tsymbal, Jian Wang, Kapildeb Ambal, Abdelghani Laraoui   +16 more
wiley   +1 more source

Hysteresis in an Evolutionary Labor Market with Adaptive Search [PDF]

This study undertakes a systematic experimental investigation of hysteresis (path dependency) in an agent-based computational labor market framework. It is shown that capacity asymmetries between work suppliers and employers can result in two distinct ...
Leigh Tesfatsion
core  

Design and Characterization of a Two‐Dimensional Soft Array Based on Cooperative Dielectric Elastomer Actuators

Advanced Functional Materials, EarlyView.
A fully polymeric two‐dimensional array of Dielectric Elastomers enables self‐sensing, cooperative actuation, and large‐stroke operation in a DE‐based autonomous conveyor. Based only on voltage and current measurements at actuator level, the system detects the presence of a ball and subsequently drives it toward a target position.
Saverio Addario, Alberto Priuli, Giovanni Soleti, Sebastian Gratz‐Kelly, Benjamin Zemlin, Stefan Seelecke, Gianluca Rizzello   +6 more
wiley   +1 more source

A Numerical Method for Simulation of Dynamic Hysteresis and Loss Distribution in Transformer Cores Under Complex Operational Conditions

Energies
This paper proposes a numerical method combining a fixed-point harmonic balance finite element method (FEM) with a dynamic hysteresis model to accurately calculate the loss distribution of laminated cores under complex operating conditions.
Junjie Zhang, Chuan Geng, Xiaojun Zhao, Wei Zhu, Shengze Gao   +4 more
doaj   +1 more source

Economic Growth and Sectoral Change under Resource Reallocation Costs [PDF]

A general growth model with explicit resource reallocation costs is set up. A new feature is the property of hysteresis (i.e. a continuum of stationary equilibria) in closed-economy growth models.
Thomas M. Steger
core