Results 101 to 110 of about 2,685,330 (268)

Research on optimization design of helical gear tooth profile modification

AIP Advances
Under real-world working conditions, the performance of gears is affected by manufacturing errors, installation errors, load deformation, and other factors. Shock, vibration, and noise are inevitable in the operation of meshing gears. Gear tooth profile can be appropriately modified to improve the smoothness of the transmission and improve the mesh ...
Hongxin Wei, Ningke Tong
openaire   +1 more source

Bimanual instrument suturing technique for periodontal and implant microsurgery: A technical note

Clinical Advances in Periodontics, EarlyView.
Abstract Background In the traditional suturing technique, the dominant hand (DH) holds a needle holder, and the non‐dominant hand (NH) performs manual ties without the aid of an instrument. In periodontal and implant microsurgery, finer sutures and needles, e.g., 7‐0 in International Organization for Standardization units, are used, which could be ...
Mark Gordon, Yu‐Chang Wu, Edward Shih‐Chang Tseng, Wen‐Xiang Zhang, Diego Velasquez‐Plata, Hsun‐Liang Chan   +5 more
wiley   +1 more source

A case series of necrotizing periodontal diseases in hospitalized patients: What hasn't been said yet?

Clinical Advances in Periodontics, EarlyView.
Abstract Background Necrotizing periodontal diseases (NPDs) are uncommon and severe inflammatory conditions characterized by tissue necrosis, painful ulceration, and rapid clinical progression, frequently associated with systemic immunosuppression. Limited data exist regarding their clinical presentation and management in hospital settings.
Osmaria Letthycia Carvalho Leal, Fernanda Bortolotto, Mariana Cristina Manoel, Gabriela Silveira de Araújo, Ana Carolina Fragoso Motta, Leandro Dorigan de Macedo, Lara Maria Alencar Ramos Innocentini, Joab Cabral Ramos, Isabel Schausltz Pereira Faustino   +8 more
wiley   +1 more source

Proteomic profiling of Elp1‐deficient trigeminal ganglia reveals disruption of neurotrophic and metabolic pathways in a familial dysautonomia mouse model

Developmental Dynamics, EarlyView.
Abstract Background Elp1, a subunit of the Elongator complex, is essential for tRNA modification and neuronal development. Mutations in ELP1 underlie familial dysautonomia (FD), a disorder marked by sensory and autonomic neuropathy. While loss of Elp1 disrupts trigeminal ganglion formation and survival, the downstream molecular consequences remain ...
Carrie E. Leonard, Lauren Clarissa Tang, Beatrix Ueberheide, Lisa A. Taneyhill   +3 more
wiley   +1 more source

Method of Cycloid Gear Tooth Profile Modification of RV Reducer

Jixie chuandong, 2017
A kind of eccentricity combined modification method of cycloid gear profile is proposed for solving the problem of the common combination modification method could not simultaneously satisfy the requirements of high bearing capacity and low rotation error.
Zhang Fengshou, Yang Xingxing, Liu Jianting, Li Pengfei   +3 more
openaire   +1 more source

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

Jixie 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, Tang Jinyuan, Chen Siyu, Fu Zhihong   +3 more
doaj  

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

Developmental 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, Jihan Asmar, Sanako Takano, Jimmy K. Hu, Amnon Sharir   +4 more
wiley   +1 more source

修形人字齿轮传动系统动态特性分析

Jixie 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  

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

Developmental 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, Henning Blom, Tiiu Märss, Donglei Chen   +3 more
wiley   +1 more source

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

ENERGY &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, Yan Zhang, Mengmeng Wang, Ye Li, Heng Sun, Lanqiong Zhang, Xin Bai, Haicheng Wei, Zhi Wang, Hao Guan, Yanzi Xu, Dongfeng Dang, Lingjie Meng   +12 more
wiley   +1 more source