Results 41 to 50 of about 2,685,028 (268)

Effect of tooth profile modification on wear in internal gears

open access: yesIOP Conference Series: Materials Science and Engineering, 2018
Internal gears are often used in the automotive industry when two gears are required to rotate in the same direction. Tooth shapes, slippage speeds at the beginning and end of meshing are different according to the external gears. Manufacturing of internal gears is more difficult than external gears.
Tunalıoğlu, Mert Şafak, Tuç, Bedri
openaire   +1 more source

Analysis of the Modification Sensitivity of Herringbone Gear

open access: yesJixie chuandong, 2022
In order to improve the applicability of herringbone gear modification results, it is necessary to analyze the sensitivity of gear surface modification parameters.
Yong Zhao   +5 more
doaj  

A New Modification Method with Double Spline Curve for the Tooth Surface Design of Spur Gear

open access: yesJixie chuandong, 2021
A new tooth surface design is proposed to spur gears with a tooth surface modification defined by double spline curves, which are used to represent the tooth profile and longitudinal profile, respectively.
Wenjun Fan   +3 more
doaj  

Spatial Tooth Profile Design and Optimization Analysis of Involute Harmonic Gear

open access: yesJixie chuandong, 2021
In order to improve the meshing performance of the involute tooth profile harmonic gear, the conjugate tooth profile discrete points in design section are obtained with an exact conjugate algorithm using assembly deformation of the flexspline,and the ...
Hongyan Wu, Xiaoxia Chen, Jingzhong Xing
doaj  

Bi‐ and Mono‐Allelic RFC1 Expansion in a North American Cohort With Idiopathic Axonal Neuropathy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective RFC1 biallelic repeat expansion is increasingly recognized as a cause of chronic idiopathic axonal polyneuropathy (CIAP), but it remains challenging to know who to test. This study aims to determine the prevalence of biallelic and monoallelic RFC1 expansions and their corresponding neuropathy phenotypes in CIAP patients and identify ...
Amro M. Stino   +25 more
wiley   +1 more source

Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite

open access: yesAdvanced Functional Materials, EarlyView.
The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen   +16 more
wiley   +1 more source

Bioinspired Adaptive Surfaces for Intelligent Liquid Manipulation: Progressing From Passive and Active to Hybrid Strategies

open access: yesAdvanced Materials, EarlyView.
This review examines passive, active, and hybrid liquid manipulation strategies, highlighting hybrid approaches as an emerging route to reconcile energy efficiency with adaptive control. By actively reconstructing passive surfaces to store programmable interfacial energy, hybrid systems enable flexible yet low‐power liquid transport, with perspectives ...
Jiaqi Miao   +3 more
wiley   +1 more source

Fabrication of Fibers With Complex Features Using Thermal Drawing of 3D‐Printed Preforms

open access: yesAdvanced Materials Technologies, EarlyView.
3D printing enables rapid fabrication of macroscale polymer preforms with complex geometries. Thermal drawing then scales these structures into long fibers while preserving micron‐scale cross‐sectional features. This workflow provides a fast, low‐cost route to functional fibers with tailored geometries and material combinations for catheter, robotic ...
Ali Anil Demircali   +4 more
wiley   +1 more source

Light‐Activated Ruthenium Nanoclusters Reprogram the Metabolic‐Quorum Sensing Axis for Precision Periodontitis Therapy

open access: yesAdvanced Science, EarlyView.
Under 660 nm visible light, Ru NCs efficiently photocatalyze nitrate‐to‐ammonium conversion and modulate oral nitrogen metabolism. They precisely perturb Veillonella parvula, block its key support to Porphyromonas gingivalis, and exert an “inhibiting without killing” antivirulence effect.
Jing Zhou   +10 more
wiley   +1 more source

A New Design of the Tooth Profile for Single Screw Compressors [PDF]

open access: yes, 2012
The wear of star wheel teeth is an importance issue in the single screw compressor. In order to enhance the wearresistance of star wheel teeth, some new profiles of the meshing pair were proposed to replace the currently used straight line envelope ...
Feng, Quanke   +3 more
core   +1 more source

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