Results 21 to 30 of about 267 (176)

DDSurfer: A Weakly‐Supervised Dual‐Stream Deep Learning Framework for Cortical Surface Reconstruction From Diffusion MRI

open access: yesAdvanced Science, EarlyView.
DDSurfer reconstructs cortical surfaces directly from diffusion MRI without requiring T1‐weighted scans. By fusing complementary microstructural features and learning diffeomorphic deformations, it efficiently generates accurate white matter and pial surfaces, improving geometric fidelity and morphometric reliability across datasets for robust surface ...
Chengjin Li   +10 more
wiley   +1 more source

LONGITUDINAL CROWNING OF THE GEAR TOOTH SURFACE OF STRAIGHT BEVEL GEARS WITH A SMALL SHAFT ANGLE WITHNON-GENERATED GEAR AND GENERATED PINION

open access: yesИзвестия высших учебных заведений: Нефть и газ, 2016
The aim of this thesis is to develop computer program shows generating process of the longitudinal-crowned gear for straight bevel gears with a small shaft angle with non-generated gear and generated pinion.
A. A. Pazyak, V. N. Syzrantsev
doaj   +1 more source

The Comparison of Straight Tooth Bevel Gear and Spiral Bevel Gear about the Stress of Gear Tooth

open access: yesInstrumentation and Equipments, 2016
大型的数控龙门加工中心中,卧式主轴头通过一对直齿圆锥齿轮副来作为相交轴的传动部件。其加工中心在高速运转时,直齿圆锥齿轮副会发出大的噪声和冲击,导致加工中心的加工质量和精度下降。为了解决这一问题,提出采用弧齿圆锥轮副代替直齿圆锥齿轮副。基于ANSYS Workbench软件,分析直齿圆锥齿轮副与弧齿圆锥齿轮副的齿跟弯曲应力和齿面接触应力的状况,在此基础上,得出弧齿圆锥齿轮副在传动过程中其轮齿的综合力学性能要优越于直齿圆锥齿轮副相应的轮齿性能。这使得数控龙门加工中心可回转式卧式主轴头在更换前70分贝的噪声降至到60分贝,噪声得到了显著的降低。 In the large CNC gantry machining center, through a pair of straight bevel gear ...
openaire   +1 more source

Influence Mechanism of Structural Parameters of a Novel Sleeve‐Shaft Counterrotating Hydrodynamic Cavitation Reactor on Cavitation Characteristics and Performance

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study systematically investigates the cavitation characteristics of a novel sleeve‐shaft counterrotating (SSCR) hydrodynamic cavitation reactor using computational fluid dynamics (CFD). Based on the RANS framework combined with the SST k–ω turbulence model and the Zwart–Gerber–Belamri cavitation model, the temporal–spatial evolution of ...
Sitong Guan   +7 more
wiley   +1 more source

Non‐Rigid 3D Shape Correspondences: From Foundations to Open Challenges and Opportunities

open access: yesComputer Graphics Forum, EarlyView.
Abstract Estimating correspondences between deformed shape instances is a long‐standing problem in computer graphics; numerous applications, from texture transfer to statistical modelling, rely on recovering an accurate correspondence map. Many methods have thus been proposed to tackle this challenging problem from varying perspectives, depending on ...
A. Zhuravlev   +14 more
wiley   +1 more source

Analisa Kekuatan Spiral Bevel Gear Dengan Variasi Sudut Spiral Menggunakan Metode Elemen Hingga

open access: yesJurnal Teknik ITS, 2017
Seiring perkembangan zaman,  teknologi roda gigi dituntut untuk mampu mentransmisikan daya yang besar dengan efisiensi yang besar pula. Pada jenis intersecting shaft gear, tipe roda gigi payung spiral (spiral bevel gear)  merupakan perkembangan dari roda
Deta Rachmat Andika, Agus Sigit Pramono
doaj  

Working at Boimondau: A Community Experience

open access: yesSociology Lens, Volume 38, Issue 1, Page 66-74, March 2025.
Abstract In the 1940s and 1950s, France witnessed the emergence of labor communities whose ambition was to escape capitalism and abolish wage labor. This article focuses on Boimondau, the best‐known community at the time. In terms of work, the central activity in the life of the community, two main tensions lastingly structured the collective and ...
Michel Lallement
wiley   +1 more source

用中心投影法作直齿圆锥齿轮的仿真模型

open access: yesJixie chuandong, 2010
In order to establish the straight bevel gear sketches and simulation model database,the straight bevel gear profile involute mathematical model is established,and a bevel gear tooth involute profile of the spherical projection formed into the circle ...
胡志勇, 张国兴, 刘海, 刘长增
doaj  

Evaluation of Contact Stress and Fatigue Life for Roller Crowning Profiles in Triple Roller Pitch Bearings

open access: yesWind Energy, Volume 29, Issue 8, August 2026.
ABSTRACT This study investigates the contact stress and rating life of a three‐row pitch bearing for wind turbines, considering the effects of roller crowning. All crowning profiles were logarithmic, and a total of six profiles were examined based on the Romax, ISO 16281, and Fujiwara equations.
SeHan Son   +8 more
wiley   +1 more source

Analysis of the Performance of Straight Bevel Gear and Zero Degree Spiral Bevel Gear for an Engine based on Dynamic Transmission Error

open access: yesJixie chuandong, 2017
For the practical engineering problems,the dynamic transmission error measurement of a two-stage cylindrical gear-bevel gear high-speed transmission system with a straight bevel gear pair and a zero degree spiral bevel gear pair is carried out based on ...
Liu Yang, Tang Jinyuan, Bai Fan
doaj  

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