Results 121 to 130 of about 3,217,305 (276)

基于修形蜗杆砂轮的斜齿轮参数化设计

Jixie 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  

Study on the Design and Modification Method of the Cycloid Gear Tooth Profile

Jixie chuandong, 2019
A new tooth profile curve equation of the cycloid gear is proposed based on the gear meshing transmission principle. Due to the problem that complex cycloid equation is difficult to be substituted directly with the software for modeling, the method of designing the cycloid gear tooth profile curve is obtained by using data fitting.
Wei Bangjie, Liu Tao, Li Ruqiong
openaire   +1 more source

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

Journal 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, Sandrella Hamdan, Timothy Fasham, Samuel Morice, Stephane Le Goff, Maria‐Antonietta D'Agostino, Marie Jannot, Yasmine Smail, Jean‐Pierre Attal, Hélène Gouze, Elisabeth Dursun, Philippe Francois   +11 more
wiley   +1 more source

Analysis of Meshing Performance for Equal Base Circle Bevel Gear

Jixie 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  

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

Journal 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, Leonardo Mancini, Panos Afouxenides, Andrea Roccuzzo, IADR IRG Peri‐implantitis Best Evidence Consensus Working Group 1, Tara Aghaloo, Georgios Belibasakis, Nagihan Bostanci, Li Dehua, Nikolaos Donos, Alpdogan Kantarci, Alireza Moshaverinia, Flavia Pirih, Mia Rakic, Frank Schwarz, Sukirth Ganesan   +15 more
wiley   +1 more source

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

, 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, Zhi Qiang Wang, Yu Tang, Shan Chang   +3 more
core   +1 more source

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

Journal 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, Susanna Paju, Jaakko Leskelä, Muhammed Manzoor, Jukka Putaala, Pauli Ylikotila, Eija Könönen, Pirkko Pussinen, Svetislav Zaric   +8 more
wiley   +1 more source

Impact of toothbrush type and periodontal phenotype on root coverage stability: A 6‐year observational follow‐up of a randomized clinical trial

Journal of Periodontology, EarlyView.
Abstract Background This 6‐year observational follow‐up of a randomized, parallel‐arm clinical trial evaluated the association between toothbrush type and periodontal phenotype on the long‐term stability of the gingival margin (GM) following coronally advanced flap (CAF) surgery.
Raffaele Acunzo, Enrico Limiroli, Silvia Ricoboni, Giorgia Saracino, Giulio Rasperini   +4 more
wiley   +1 more source

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

Jixie 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, Hou Li, Wei Yongqiao, He Linli, Li Bo   +4 more
doaj  

Severity of periodontitis and risk of ischemic stroke: A systematic review and meta‐analysis

Journal of Periodontology, EarlyView.
Abstract Background Periodontitis is a prevalent chronic inflammatory disease with a systemic inflammatory burden and is implicated with vascular pathology. This systematic review and meta‐analysis evaluates the association between varying severities of periodontitis and ischemic stroke with various diagnostic criteria.
Steven Sitt, Chloe J. Chang, Chin‐Wei Wang   +2 more
wiley   +1 more source