Results 1 to 10 of about 2,430,413 (334)

3D Printed Double Roller-Based Triboelectric Nanogenerator for Blue Energy Harvesting. [PDF]

open access: yesMicromachines (Basel), 2021
The ocean covers 70% of the earth’s surface and is one of the largest uncultivated resources still available for harvesting energy. The triboelectric energy harvesting technology has the potential to effectively convert the ocean’s “blue energy” into electricity.
Kim I, Kim D.
europepmc   +6 more sources

The Effects Analysis of Contact Stiffness of Double-Row Tapered Roller Bearing under Composite Loads

open access: yesSensors, 2023
Double-row tapered roller bearings have been widely used in various equipment recently due to their compact structure and ability to withstand large loads.
Fanyu Zhang   +3 more
doaj   +4 more sources

Usefulness of extracorporeal membrane oxygenation using double roller pumps in a low body weight newborn: A novel strategy for mechanical circulatory support in an infant

open access: yesAnnals of Pediatric Cardiology, 2016
Extracorporeal membrane oxygenation (ECMO) with a centrifugal pump requires a certain flow rate; therefore, its application for low body weight infants is frequently accompanied by oxygenator membrane malfunction and/or inadequate perfusion.
Keisuke Nakanishi   +3 more
doaj   +3 more sources

Design and test on double-roller sweet potato vine crushing and returning machine

open access: yesJournal of Applied Science and Engineering, 2021
At present, all most sweet potato crushing machineries are improved based on potato seedling killer or straw crushing and returning the machine and adopt single-roller mulch type seedling killing structure, and there are problems such as low crushing ...
Wanzhi Zhang   +6 more
doaj   +3 more sources

Kinematic analysis of the double roller tripod joint [PDF]

open access: yesProceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics, 2019
To solve the shortcomings and structural defects of the tripod joint, a novel structure named ‘double roller tripod joint’ is designed in this paper with the following features: (1) gothic arc-shaped tracks, (2) outer rollers with semi-toroid outer surfaces, (3) cylindrical inner rollers and (4) spherical trunnions.
Yinyuan Qiu, Wen-Bin Shangguan, Yong Luo
openaire   +2 more sources

Meshing Theory Analysis of Parallel Inclined Double Roller Enveloping Hourglass Worm Drive

open access: yesJixie chuandong, 2021
Based on the modification of single roller enveloping hourglass worm drive, a new type of worm drive, parallel inclined double roller enveloping hourglass worm drive is proposed.
Honghui Liao   +3 more
doaj   +1 more source

Machining and Performance Testing of Inclined Double-roller Enveloping Hourglass Worm Drive

open access: yesJixie chuandong, 2018
To eliminate the gear backlash,a new inclined double-roller enveloping hourglass worm drive is proposed. The meshing performance is analyzed based on the meshing geometry of inclined double-roller enveloping hourglass worm drive.
Liu Zaixin   +3 more
doaj   +1 more source

Design and Analysis of a Novel Actuator with a Double-Roller Gear Drive

open access: yesActuators, 2023
In recent years, with the development of robot transmission technology, the market demand for high-performance actuators, which can be applied to lower limb exoskeleton assist robots, is increasing.
Xuan Li, Yang Li, Weilong Niu, Ran Guo
doaj   +2 more sources

Analysis of Thermal Elastohydronamic Lubrication of Inclined Double-roller Enveloping Hourglass Worm Drive

open access: yesJixie chuandong, 2018
To improve the lubrication performance,anti-scuffing capacity and efficiency of enveloping worm,the elastohydrodynamic lubrication( EHL) line contact model is established based on the research of meshing performance of inclined double-roller enveloping ...
Ou Yue   +4 more
doaj   +1 more source

Design and Test of a New Type of Overrunning Clutch

open access: yesMachines, 2022
The overrunning clutch, or freewheel, is a kind of universal part with a one-way drive character, and is widely used in machinery. Typical roller overrunning clutches and sprag overrunning clutches have shortcomings such as low load bearing capacity, low
Yuan Xue   +4 more
doaj   +1 more source

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