Results 81 to 90 of about 11,864 (263)

基于ANSYS的斜齿面齿轮传动的弯曲应力分析

open access: yesJixie chuandong, 2009
The generation of tooth profile of face-gear with helical pinion is studied,the modeling of three-tooth on face-gear drive,and finite element model of the pinion and face-gear is made.The analysis of the bending stress of face-gear drive on different ...
黄丽娟, 朱如鹏
doaj  

Australia's Migration Strategy: An Effective Response to Migrant Worker Exploitation?

open access: yesAustralian Journal of Social Issues, EarlyView.
ABSTRACT A series of publicised migrant worker injuries and deaths has drawn attention to the issue of migrant worker exploitation (MWE) in Australia. In response, the Australian Government has included ‘Tackling Worker Exploitation’ as a key area of its Migration Strategy which it introduced in 2023. However, it is unclear how effective the Strategy’s
Evelyn Dowling, Alexandra Ridgway
wiley   +1 more source

变位面齿轮齿宽特性的研究

open access: yesJixie chuandong, 2009
In order to improve the transmission quality of face-gear,the research status about face-gear at home and abroad are summarized,the addendum modification theory of face-gear is analyzed,a mathematical tooth-width model and a visual three-dimension ...
李永祥   +4 more
doaj  

Alkali‐Catalyzed Synthesis of Acylglycerol Estolides Exclusively from Castor Oil

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
This work advances sustainable chemistry by converting renewable castor oil into high‐performance estolides via solvent‐free, low‐energy catalysis. ABSTRACT Estolides are oligomers composed of fatty acid (FA) monomers linked through secondary ester bonds located along the mid‐chain region.
Lucas Natã de Melo   +3 more
wiley   +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

Cooling Holes in Polymer Spur Gears: A Critical Analysis of Heat Dissipation Benefits and Mesh Stiffness Penalties

open access: yesJournal of Applied Polymer Science, EarlyView.
Cooling holes provide a simple passive cooling strategy for polymer spur gears, reducing maximum operating temperature by up to 9.39% while introducing a measurable gear mesh stiffness penalty. A validated response‐surface model reveals how hole size and location govern this thermal–mechanical trade‐off, enabling design optimization for thermally and ...
Abderrahim Baccar   +5 more
wiley   +1 more source

T. rex cognition was T. rex‐like—A critical outlook on diverging views of the neurocognitive evolution in dinosaurs

open access: yesThe Anatomical Record, EarlyView.
Abstract A recent debate has emerged between Caspar et al. (2024) and Herculano‐Houzel (2023) on inferring extinct dinosaur cognition by estimating brain neuron counts. While thought‐provoking, the discussion largely overlooks the function of cognition, as well as partly neglects the difficulties involved in estimating neuron numbers, which according ...
Thomas Rejsenhus Jensen   +7 more
wiley   +1 more source

A Century of Learning: The Story of ESA's Education Committee, 1918–2025

open access: yesThe Bulletin of the Ecological Society of America, EarlyView.
Abstract The Education Committee and its precursors have been highly influential within the Ecological Society of America. Here we document the Education Committee's history, from its origins in reviewing curricular materials through major contributions to ecological literacy, teaching innovation, diversity initiatives, and professional development ...
Kenneth M. Klemow   +6 more
wiley   +1 more source

CNCTechnologyofWheelDressingforPrecisionGrindingFaceGear

open access: yes工程科学与技术, 2015
:One method of CNC grinding disk wheel dresser and error impact analysis were proposed in order to improve the accuracy of face gear grinding.The motions of grinding face gear by disk wheel were analyzed based on the principle of face gear drive.The ...
王延忠   +4 more
doaj  

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