Results 71 to 80 of about 52,719 (329)

弧齿锥齿轮接触区的调整

open access: yesJixie chuandong, 2010
The work quality of spiral bevel gear is directly influenced by the adjustment of spiral bevel gear’s contact area.The position,the size and the shape of contact area are important to the bevel gear work stability,the life and the noise of contact zone ...
侯文健
doaj  

Kinematic analysis of complex gear mechanisms [PDF]

open access: yes, 2010
This paper presents a general kinematic analysis method for complex gear mechanisms. This approach involves the null-space of the adjacency matrix associated with the graph of the mechanism weighted by complex coecients.
Alazard, Daniel, Penaud, Julie
core  

3D Dynamic Motion Planning for Robot-Assisted Cannula Flexible Needle Insertion into Soft Tissue [PDF]

open access: yes, 2016
In robot-assisted needle-based medical procedures, insertion motion planning is a crucial aspect. 3D dynamic motion planning for a cannula flexible needle is challenging with regard to the nonholonomic motion of the needle tip, the presence of anatomic ...
Peng, Jingchun   +5 more
core   +4 more sources

Cannabigerol reverses mechanical allodynia through α2A‐adrenergic modulation of thalamocortical signaling in chemotherapy‐induced neuropathy

open access: yesBritish Journal of Pharmacology, EarlyView.
Abstract Background and Purpose Chemotherapy‐induced peripheral neuropathy (CIPN) is a prevalent and treatment‐resistant side effect of platinum‐based chemotherapy, characterised by mechanical allodynia. Cannabigerol (CBG), a non‐psychoactive cannabinoid, has shown antinociceptive potential, but its site and mechanism of action remain unclear.
Quinn W. Wade   +7 more
wiley   +1 more source

基于UG的椭圆锥齿轮的仿真加工

open access: yesJixie chuandong, 2012
Elliptic bevel gear is a noncircular bevel gear,whose spherical pitch curve of big end is an ellipse.According to the space mesh theory and the generation mechanism of involute gear tooth profile,a processing method of this kind of gear based on UG is ...
刘凯, 夏继强, 石侃
doaj  

Precision Measurement of Spiral Bevel Gear based on Laser Displacement Sensor

open access: yesJixie chuandong, 2021
Based on the analysis of the characteristics of the existing bevel gear measurement technology, a non-contact measurement method of the bevel gear is proposed based on the laser displacement sensor and the algorithm of the tooth distance deviation, the ...
Zhongwang Lu   +4 more
doaj  

Efficacy of Biologics for Surgical Treatment of Periodontal Suprabony Defects: A Systematic Review and Meta-Analysis of Controlled Clinical Trials. [PDF]

open access: yesJ Clin Periodontol
ABSTRACT Aim Limited bone support in suprabony defects hinders predictable regeneration, but adjunctive biologics can improve results. This systematic review and meta‐analysis aimed to evaluate the clinical efficacy of adjunctive biologics combined with open flap debridement (OFD) compared with OFD alone when treating suprabony defects.
Baniameri S   +7 more
europepmc   +2 more sources

Basis Networks: Learning basis functions for free‐form triangulations

open access: yesComputer Graphics Forum, EarlyView.
Abstract We present a framework for learning compactly supported basis functions that define tangent continuous surfaces based on coarse irregular triangle meshes. The basis functions are represented as MLPs. Smoothness of the basis functions is achieved by using the values of Loop basis functions as the parameterization of the surface.
T. Djuren, M. Alexa
wiley   +1 more source

Variable-geometry solar sailing: the possibilities of the quasi-rhombic pyramid [PDF]

open access: yes, 2014
Variable geometry solar sailing potentially offers enhanced delta-V capabilities and new orbital solutions. We propose a device with such capabilities, based upon an adjustable quasi-rhombic pyramid sail geometry, and examine the benefits that can be ...
Ceriotti, Matteo   +2 more
core   +1 more source

Self‐supervised Learning of Fine‐to‐Coarse Cuboid Shape Abstraction

open access: yesComputer Graphics Forum, EarlyView.
Abstract The abstraction of 3D objects with simple geometric primitives like cuboids allows us to infer structural information from complex geometry. It is important for 3D shape understanding, structural analysis and geometric modeling. We introduce a novel fine‐to‐coarse self‐supervised learning approach to abstract collections of 3D shapes.
Gregor Kobsik   +6 more
wiley   +1 more source

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