Results 101 to 110 of about 2,820,928 (238)

基于修形蜗杆砂轮的斜齿轮参数化设计

open access: yesJixie chuandong, 2014
According to the actual process of worm grinding wheel forming helical gear,the parameter mathematics model of the surface of helical gear and fillet is established.The helical gear tooth profile modification curve is achieved by modifying the profile of
曾红, 刘鹏, 唐文, 王延忠
doaj  

Modification Method of Tooth Profile of Locomotive Traction Gear Based on Rodent Arm Variation [PDF]

open access: yes, 2019
Locomotive traction gear is the key component to power transmission and speed control in locomotive transmission system, which plays an important role in locomotive running speed and load-carrying torque.
Qin, Meichao   +5 more
core  

Perceived Educational Value of a Self‐Developed 3D‐Printed Pediatric Dentistry Simulator

open access: yesJournal of Dental Education, EarlyView.
ABSTRACT Purpose To design and assess a 3D‐printed pediatric dentistry simulator and to evaluate its perceived educational value and realism through student and expert feedback. Methods A maxillary simulator that is mountable on phantom heads was developed and produced by desktop stereolithography with single‐use inserts, enabling proximal caries ...
Michel Benyamin   +11 more
wiley   +1 more source

Analysis of Meshing Performance for Equal Base Circle Bevel Gear

open access: yesJixie chuandong, 2019
In order to analyze the bearing capacity and transmission performance of equal base circle bevel gear under actual working conditions, the tooth contact analysis (TCA)is performed to simulate the tooth surface contact pattern and transmission error ...
He Xin, Cao Xuemei
doaj  

Study on Helical Tooth Profile Modification of Planetary Gear Transmission on the Basis of Gear Transmission Error

open access: yes, 2011
In order to minimize the fluctuation of gear transmission error (GTE) about the planetary gear transmission. A method was developed to deciding tooth profile modification curves of planetary transmission.
Kun Zhang   +3 more
core   +1 more source

Peri‐implant disease pathogenesis animal models: Consensus report of Workgroup 1 of the IADR Implantology Research Group Best Evidence Consensus Symposium on Peri‐Implant Disease and Its Treatment

open access: yesJournal of Periodontology, EarlyView.
Abstract Background The pathogenesis and etiology of peri‐implantitis demand a deeper understanding to lead to successful treatment modalities. Animal models of peri‐implantitis pathogenesis offer unique insights but their translational impact requires consideration of implant biomaterials science.
Georgios Kotsakis   +15 more
wiley   +1 more source

Contact stresses in gear teeth due to tip relief profile modification [PDF]

open access: yes, 2011
In this paper the linear tip relief profile modification has been observed. This kind of modification has been considered to be potentially dangerous considering micro-pitting initiation as a consequence of contact pressure increase.
Franulović, Marina, Marković, Kristina
core  

Dasatinib and quercetin prevent alveolar bone loss in aged mice

open access: yesJournal of Periodontology, EarlyView.
Abstract Background Recent findings have associated alveolar bone loss (ABL) with the presence of senescent cells. Aging and the accumulation of senescent cells are associated with a pro‐inflammatory environment which may exacerbate tissue damage.
Luisa S. Battistelli   +7 more
wiley   +1 more source

Microbial burden of periodontal diseases and its clinical application: The stage, grade, and furcation matter

open access: yesJournal of Periodontology, EarlyView.
Abstract Background Periodontal diseases are associated with dysbiotic oral microbial communities, but clinically applicable measures that reflect microbial burden across disease severity and progression remain limited. This study aimed to assess the oral microbial burden of periodontal diseases by evaluating salivary and subgingival lipopolysaccharide
Anbo Dong   +8 more
wiley   +1 more source

Modeling and Contact Strength Analysis for Modified Cylindrical Gear Profile with Arcuate Tooth Trace

open access: yesJixie chuandong, 2015
Based on analyzing the meshing theory of ideal gear and the tooth surface equation,the tooth surface equation of modified cylindrical gear profile with arcuate tooth trace is deduced.
Zhang Haiyan   +4 more
doaj  

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