Results 101 to 110 of about 2,789,125 (261)

Jaw‐specific stem cell dynamics are associated with distinct enamel architecture in mouse incisors

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background The continuously growing mouse incisor serves as a model for stem cell‐driven tooth renewal. Although mice possess maxillary and mandibular incisors, most studies have focused on the mandible. Potential differences in structure and renewal between these serially homologous organs remain insufficiently characterized.
Elias Shahin   +4 more
wiley   +1 more source

Orthodentine‐osteodentine and osteocytic‐anosteocytic transition inferred from Silurian stem chondrichthyan dermal jawbones with ever‐white teeth overgrown by brown denticles

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background The dentigerous jawbones of a 423‐million‐year‐old stem chondrichthyan (ischnacanthid acanthodian) carry a characteristic combination of multi‐row non‐shedding white teeth with brownish overgrowing denticles. The color distinction makes it a good model for observing the interaction between two odontode lineages, but the nature of ...
Jia‐Cih Kang   +3 more
wiley   +1 more source

Experimental Study on Bending Stress of Spur Gear with Tooth Profile Modification and Finite Element Verification

open access: yesJixie chuandong, 2018
The study of static and dynamic meshing characteristics of gears has high theoretical value for improving gear carrying capacity and dynamics performance.
Chen Xueshi   +3 more
doaj  

Effect of tooth profile modification on wear in internal gears

open access: yes, 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.
M. Tunalioglu, B. Tuç
semanticscholar   +1 more source

All‐in‐One Intelligent Hemostatic Sponge: Rapid Hemostasis for Non‐Compressive Wounds With Synergetic Enhanced Antibacterial Efficacy and Self‐Reporting Biodegradation

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Clinicians often concurrently tackle critical challenges including emergency hemorrhage, secondary infection, and the elusive tracking of biodegradation of conventional hemostatic agents for complex wounds. Here, we report an intelligent hemostatic sponge (spCS@AIE) by incorporating aggregation‐induced emission (AIE) nanoparticles with short‐wave ...
Zhicheng Liu   +12 more
wiley   +1 more source

Influence of Involute Cylindrical Gear Tooth Profile Modification on the Stress of Gear Tooth

open access: yes, 2019
Through the analysis and study of involute gear modification, a new method is applied to modify the gear nonworking surface. And the tooth profile equation of the involute gear nonworking surface is built.
Xiao Han, Xinli Xu
core   +1 more source

Laser‐Textured Field‐Engineered Interface for Robust Dry‐Processed Cathodes in Lithium‐Ion Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Laser‐patterned dry electrodes applied to current collectors could serve as a promising alternative to the limitations of conventional dry electrodes. Laser technology provides a fast and simple method to enhance the surface roughness of current collectors, improving the adhesion at the electrode–current collector interface.
Chaerin Jung   +8 more
wiley   +1 more source

修形人字齿轮传动系统动态特性分析

open access: yesJixie chuandong, 2014
The double helical gear addendum modification is achieved by using parabola instead of part of straight line on rack cutter blade.Through a predesigned parabolic function of transmission errors and combined with the equation of the rack cutter blade,the ...
尚鹏, 李建华, 王三民
doaj  

Research on precision edge profile modification technology for cylindrical gear tooth flanks

open access: yesJournal of Physics, Conference Series
Gear transmission accuracy critically determines the performance and service life of mechanical systems, where burrs and flashes on tooth edges significantly compromise assembly precision and transmission stability.
Fucong Liu, Luyang Zou
semanticscholar   +1 more source

Reflex seizures and epilepsy surgery: A network approach case‐based exploration

open access: yesEpileptic Disorders, EarlyView.
Abstract Context Reflex seizures (RS) are defined by their consistent provocation by specific stimuli, encompassing a broad range from elementary sensory inputs to complex cognitive tasks. While RS are often encountered in clinical practice, their surgical management remains sparsely reported and poorly systematized.
Olivier Aron   +6 more
wiley   +1 more source

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