Results 31 to 40 of about 14,096,944 (291)

Flexibility and Frictions in Multisector Models [PDF]

open access: yesAmerican Economic Journal: Macroeconomics, 2018
We show that during the Great Recession, more-flexible sectors paid lower sectoral bond spreads. We rationalize this fact with a model with input-output linkages, heterogeneous elasticities, and binding working capital constraints in the use of intermediates. We show that the difference in flexibility between upstream and downstream sectors is key for
Miranda-Pinto, Jorge, Young, Eric R.
openaire   +5 more sources

Identification and model-based compensation of Striebeck friction [PDF]

open access: yes, 2006
The paper deals with the measurement, identification and compensation of low velocity friction in positioning systems. The introduced algorithms are based on a linearized friction model, which can easily be introduced in tracking control algorithms ...
Lantos, Béla, Márton, Lőrinc
core   +2 more sources

Modeling, Identification, and Compensation Control of Friction for a Novel Dual-Drive Hydrostatic Lead Screw Micro-Feed System

open access: yesMachines, 2022
This paper investigates the transmission performance of a novel dual-drive hydrostatic lead screw micro-nano feed system (DDHLS) that can obtain extremely low speed.
Yandong Liu   +7 more
doaj   +1 more source

Financial Frictions in Macroeconomic Models [PDF]

open access: yes, 2018
Abstract In recent decades, macroeconomic researchers have looked to incorporate financial intermediaries explicitly into business-cycle models. These modeling developments have helped us to understand the role of the financial sector in the transmission of policy and external shocks into macroeconomic dynamics.
Alfred Duncan   +3 more
openaire   +3 more sources

Research on the Time-Varying Properties of Brake Friction (September 2018)

open access: yesIEEE Access, 2018
In this paper, a dynamic model of the coefficient of friction (COF) is established from energy perspective and the principal friction mechanism of disc brake is investigated.
Zhishuai Wan   +3 more
doaj   +1 more source

Experimental comparison of five friction models on the same test-bed of the micro stick-slip motion system [PDF]

open access: yesMechanical Sciences, 2015
The micro stick-slip motion systems, such as piezoelectric stick-slip actuators (PE-SSAs), can provide high resolution motions yet with a long motion range. In these systems, friction force plays an active role.
Y. F. Liu   +4 more
doaj   +1 more source

The Effect of Dry Friction upon the Dynamics of a Short Eccentric Rotor: An Analytical and Experimental Study

open access: yesLubricants, 2023
The paper proposes the study of dry friction by means of a short eccentric rotor. The rotor was designed and realised in the laboratory. In an ideal frictionless situation, a rotor actuated by gravity will have an angular velocity which increases ...
Stelian Alaci   +5 more
doaj   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

Friction Prediction and Validation of a Variable Stiffness Lower Limb Exosuit Based on Finite Element Analysis

open access: yesActuators, 2021
The variable stiffness exosuit has great potential for human augmentation and medical applications. However, the model of the variable stiffness mechanism in exosuits is far from satisfactory for the accurate prediction and control of friction force ...
Zhuo Ma   +3 more
doaj   +1 more source

Structure‐forward targeting of claudins with synthetic binders

open access: yesFEBS Letters, EarlyView.
Claudins form the paracellular barriers between epithelial and endothelial tissues at tight junctions and are targets for molecular binders with the goal of modulating barrier permeability. Claudin‐binding molecules are relevant in drug delivery or in altering claudin interactions with disease‐causing proteins.
Alex J. Vecchio
wiley   +1 more source

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