Results 91 to 100 of about 1,920 (258)
ABSTRACT Open burning plastics is a major environmental health hazard in low‐ and middle‐income countries, releasing toxic pollutants and exacerbating climate change. Although Indonesia prohibits plastic burning, enforcement in rural settings remains fragile.
Sujarwoto Sujarwoto +3 more
wiley +1 more source
A study on the design of asymmetric gears for application in gear pumps
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
Triboelectric nanogenerators for vehicle intelligent cockpits
Converting mechanical stimuli from drivers and vehicle motion into electrical signals, triboelectric nanogenerators provide promising interfaces toward passive, flexible, distributed and intelligent sensing for next‐generation automotive cockpits to support three core functional dimensions: driver state monitoring, vehicle state monitoring, and human ...
Haiqiu Tan +9 more
wiley +1 more source
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
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
Analysis of Dynamics Characteristic of the Helical Gear Transmission in Helicopter
The multiaxial helical gear transmission is widely used in helicopter for parallel operation. The dynamics model of the helical gear transmission is established for system inherent characteristic analysis,and the dynamic response is obtained.
Liu Tao, Li Jie, Dai Jinchun
doaj
Spontaneous unidirectional rotation of a symmetric gear driven by spherical active particles
Time reversal asymmetry and spatial anisotropy are considered two prerequisites for Brownian ratchet. An intriguing realization can be achieved by placing an asymmetric gear in the suspension of motile rod-like bacteria.
Wang Chao +4 more
doaj +1 more source
Should Paratonia Be Considered a Movement Disorder? Implications for Clinical Management
Abstract Paratonia is an involuntary and variable resistance to passive movement that emerges with cognitive decline in dementias of different etiologies, with prevalence approaching 90% to 100% in end‐stage disease. It is common in Parkinson disease and the atypical parkinsonisms.
Galit Kleiner +2 more
wiley +1 more source
INVESTIGATION OF GEARS WITH ASYMMETRIC PROFILE USING RELIABILITY PARAMETERS
The results of the study of gears with involute and sinusoidal teeth are presented herein. The subjects of the comparative analysis were the stresses at the root of the tooth from the side of the applied load and from the side of the unloaded profile, contact stresses, and elastic deformations under the action of a given torque.
Ihor Hrytsai, Vasyl Verhun
openaire +2 more sources
A framework for investigating fish population density responses to habitat fragmentation
Globally, fish populations that rely on rivers are being fragmented by in‐stream barriers, but it is unclear how pervasive any negative population responses to fragmentation are. We developed a modeling framework for estimating density responses of fishes upstream and downstream of in‐stream barriers and applied it to learn how low‐head dams have ...
Sean A. Lewandoski +3 more
wiley +1 more source

