Results 91 to 100 of about 2,170 (266)

Reshaping Labor Intermediation: An Integrated Workforce Management Strategy to Contrast Agricultural Workers' Exploitation in Italy

open access: yesStrategic Change, EarlyView.
ABSTRACT Labor exploitation within agri‐food supply chains poses significant ethical and managerial challenges, particularly in Mediterranean contexts where irregular employment practices persist. This study investigates the case of NoCap, a third‐party ethical certification initiative operating in Italy that integrates social responsibility into ...
Claudio Mirabella   +3 more
wiley   +1 more source

An analytical approach for predicting the fillet and contact stresses in symmetric and asymmetric spur gears under frictional mesh assumptions

open access: yesResults in Engineering
A precise estimation of the bending and contact stresses, as well as the true friction value during the gear mesh, are critical aspects of a cost-effective and safe gear design.
Ahmed A. Toman, Mohammad Q. Abdullah
doaj   +1 more source

Chirality-induced rectification in asymmetric gear systems

open access: yes
We investigate the emergence of unidirectional rotation in an asymmetric gear immersed in a chiral active particle bath under periodic boundary conditions.
Hui-zhang Xie, Jin-ran Li
core   +1 more source

C‐LENS: An Integrative Process Framework for Managing Governance and Complexity in University–Industry Collaboration

open access: yesKnowledge and Process Management, EarlyView.
ABSTRACT University–industry collaboration (UIC) often underperforms not because its relevance is unclear, but because collaboration processes are rarely designed to accommodate evolving governance needs amid complexity. Existing studies have examined drivers, barriers, and institutional interfaces, yet process dynamics, governance mechanisms, and ...
Carlos Alexandre Ferreira Gama   +3 more
wiley   +1 more source

Toward Highest Frequency, Phase‐Sensitive Electric Field Sensing Enabled by Plasmonic Circuits

open access: yesLaser &Photonics Reviews, EarlyView.
An electromagnetic field sensor using an optical sensor head for distortion‐free, high‐sensitivity measurements with potential for high‐frequency operation is presented. The frequency response is enabled by an antenna‐integrated plasmonic modulator. The sensitivity is calculated, and optimizations to obtain thermal‐background‐limited sensitivity are ...
Michael Baumann   +5 more
wiley   +1 more source

Rigorous Electromagnetic Quasinormal‐Mode Method Made Easy for Users

open access: yesLaser &Photonics Reviews, EarlyView.
We present a method that combines numerical techniques with accurate approximations to enable simple and ultrafast computations of the scattered field based on quasinormal modes expansions. The method is made available in the open‐source package MANlite implemented within COMSOL.
Tong Wu, Philippe Lalanne
wiley   +1 more source

Computerized Generation of Nonstandard and Asymmetric Involute Spur Gears Based on Rack Cutter Parametric Tracing

open access: yesJournal of Engineering
In the field of gear design, to apply any form of analysis (such as FEA, dynamic, and stress analyses), a delicate and accurate representation of the gear geometry is essential.
Ahmed A. Toman, Mohammad Q. Abdullah
doaj   +1 more source

Reduction of contact stresses using involute gears with asymmetric teeth [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2015
Asymmetrical involute gears have a different value of the operating pressure angle for right and left side of the gear. These teeth are suitable for one direction of rotation. Such teeth enable to change the length of the generating line.
Jarmila VOJTKOVÁ
doaj  

A study on the design of asymmetric gears for application in gear pumps

open access: yes, 2020
This thesis presents a study on the design of spur gears with asymmetric teeth in external gear pump applications. A model is generated for asymmetric gears and for the specified gear pairs, Hertz contact stresses are determined by using analytical approach. The instantaneous flowrate equation is also derived.
openaire   +1 more source

Mathematical model of a spur gear with asymmetric involute teeth and its cutting simulation

open access: yes, 2008
This paper gives a mathematical model for spur gears with asymmetric involute teeth based on the gear theory and generating mechanism. The equations of designed profile of rack cutter with asymmetric teeth, the principle of coordinate transformation, the
Imrak, Erdem, Fetvaci, Cuneyt
core   +1 more source

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