Results 21 to 30 of about 5,870 (164)

Quantification of Plastics in Agriculture and Fisheries at a Regional Scale: A Case Study of South West England

open access: yesRecycling, 2023
The use of plastics in agriculture and in fisheries has been vital to increase food production and meet the demands of an increasingly growing global population. However, there are several drawbacks to the use of plastics in these industries.
Maria Eugenia Correa-Cano   +4 more
doaj   +1 more source

Mitigation strategies to reverse the rising trend of plastics in Polar Regions

open access: yesEnvironment International, 2020
Plastic marine pollution in the Arctic today illustrates the global distribution of plastic waste of all sizes traveling by wind and waves, entering food chains, and presenting challenges to management and mitigation.
Marcus Eriksen   +5 more
doaj   +1 more source

Design and Experiment Research of Static Strength Test Benches for Small Modulus Plastic Gears

open access: yesJixie chuandong, 2023
In order to obtain the static strength of small modulus plastic gears, a small modulus plastic gear static strength test bench is developed, which can accurately measure the static strength of plastic gears under different modulus, speeds and materials ...
Cui Xing, Xin Dong, Yu Bo, Shi Zhaoyao
doaj  

Using Material Flow Analysis (MFA) to generate the evidence on plastic waste management from commercial fishing gears in Norway

open access: yesResources, Conservation & Recycling: X, 2020
Plastic debris is an ever-growing concern adversely affecting the coastal and marine ecosystem. Among marine plastic waste, a particularly troublesome waste fraction is Abandoned, Lost or Discarded Fishing Gears (ALDFG) that continues to trap marine life
Paritosh C. Deshpande   +3 more
doaj   +1 more source

Effect of Phase Fluctuation on the Proper Operation of Smart Gear Health Monitoring System

open access: yesSensors, 2022
A smart gear sensor system has been developed for the condition monitoring of gear. This system includes a smart gear—the operation gear and a monitoring antenna.
Thanh-Tung Mac   +6 more
doaj   +1 more source

GEOMETRIC DESIGN, ADDITIVE PRODUCTION AND 3D SCANNING OF A HELICAL GEAR PAIR [PDF]

open access: yesFiabilitate şi Durabilitate, 2022
A helical gear pair was deisgned and CAD modelled by computational way. After the assembly simulation the models were produced by additive technology. The Fused Deposition Modeling (FDM) technology was selected for the 3D printing that is widely used ...
Sándor BODZÁS, Dániel NEMES
doaj  

Development of Transmission Error Dynamic Testing Machine for Plastic Gear

open access: yesJixie chuandong, 2019
Based on the principle of single flank measurement, a dynamic testing machine for plastic gear transmission error is developed and can simulate the actual working condition of the plastic gear and realize the dynamic measurement of transmission error ...
Zhaoyao Shi   +6 more
doaj  

Research of the Variation of Meshing Force of the Plastic Helical Gear and Steel Worm

open access: yesJixie chuandong, 2018
In order to investigate the meshing force of the tooth surface of the plastic helical gear and the steel worm in the transmission process,the mechanical model of the meshing pair of plastic helical gear and steel worm is established by considering the ...
Yun Yonghu, Hu Hong, Ta Jingning
doaj  

A non-restrictive approach of gear geometry calculation for plastic gears

open access: yesForschung im Ingenieurwesen, 2023
AbstractFor the unrestricted calculation of gearboxes with a constant transmission ratio, a parameter radius ratio is developed. For this purpose, a parameter radius ratio is introduced that has a piecewise continuous and differentiable domain of definition.
Florian Eigner   +2 more
openaire   +1 more source

Tooth-root-stress evaluation for plastic gears considering effect of contact ratio under load

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing
In a plastic gear pair, the low rigidity of plastics can lead to a higher actual contact ratio due to tooth deflection under load compared to the geometrical one. This phenomenon contributes to a decrease in tooth root stress.
Ichiro MORIWAKI, Akio UEDA, Takao KOIDE
doaj   +1 more source

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