Results 81 to 90 of about 218,591 (239)

Analysis on the Machining Twisting mechanism of Tooth Surface with Axial Modification of Helical Gear and Its Influence on Meshing Performance

open access: yesJixie chuandong, 2020
The formation mechanism of tooth surface twist in helical gear generating machining (worm grinding and hobbing) and the measure to reduce the tooth surface twist are mainly studied.
Shihao Gao   +3 more
doaj  

Risk Scenarios for European Rearmament

open access: yesGlobal Policy, EarlyView.
ABSTRACT Since Russia's invasion of Ukraine in 2022, the European Union has launched a flurry of initiatives to ramp up European defence spending. Efforts to bolster European defence have further intensified in response to the United States' increasingly hostile stance towards its erstwhile European allies.
Mette Eilstrup‐Sangiovanni
wiley   +1 more source

Automated optimal design of a two-stage helical gear reducer

open access: yes, 2010
The design space of multi-stage transmissions is usually very large and heavily constrained. This places significant demands on the algorithm employed to search it, but successful optimization has the potential to yield considerably better designs than ...
Tudose, Lucian   +3 more
core   +1 more source

Study on Internal Helical Gear Topographic Modification and Transmission Error Simulation

open access: yesJixie chuandong, 2019
In order to improve the meshing performance of the internal helical gear transmission pair, a topographic modification method of the internal helical gear is proposed.
Xiaozhong Ren, Zhifang Li, Jianxin Su
doaj  

Story2Board: A Training‐Free Approach for Expressive Visual Storytelling

open access: yesComputer Graphics Forum, EarlyView.
Abstract We present Story2Board, a training‐free framework for expressive storyboard generation from natural language. Existing methods narrowly focus on subject identity, overlooking key aspects of visual storytelling such as spatial composition, background evolution, and narrative pacing.
D. Dinkevich   +4 more
wiley   +1 more source

高速大功率人字齿轮传动的轴向振动特性研究

open access: yesJixie chuandong, 2014
The axial vibration of double helical gear transmission can cause the imbalance of axial force which could influence the change of gear engaging position,oscillation of the gearbox casing and even the failure of high speed and high power double helical ...
戴日辉   +3 more
doaj  

Improvement of the Nonparallel Helical Gear Drive Performance Using the Modified Asymmetric Teeth with Tip Relief

open access: yesJournal of Engineering
Overheating is a common issue in a nonparallel helical gearing system. The reason is the high friction, sliding velocity, and tangential force that occurs between meshed gear teeth.
Mohammed Abdulaal Kadhim   +1 more
doaj   +1 more source

Crowning of Helical Gears

open access: yes, 2018
A case study in Industrial Mathematics, concerning designing of possibility of desired tooth profiles of gears given a curve tracing by grinding wheels.
openaire   +1 more source

Climate Uncertainty and Financial Subordination: Evidence From a Two‐Country Stock‐Flow Consistent Model

open access: yesEuropean Financial Management, EarlyView.
ABSTRACT In the face of climate change, uncertainty is deep, systemic, and does not propagate amid an institutional vacuum, contrary to assumptions often underlying existing macroeconomic climate models. The paper presents a macroeconomic Stock‐Flow Consistent model to examine the impact of climate‐related financial pressures under fundamental ...
Riccardo D'Orsi
wiley   +1 more source

Capture Probability and Effects of Bait Type on Learning Behavior in an Unexploited Population of Northern Pike (Esox lucius)

open access: yesFisheries Management and Ecology, EarlyView.
ABSTRACT Changes in angling response were studied over a period of three years in a natural, previously unfished population of northern pike. Standardized angling sessions took place during two weeks in spring and autumn with three bait types: bright‐ and natural‐colored soft plastic baits and a dead baitfish.
Jorrit Lucas   +3 more
wiley   +1 more source

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