Results 71 to 80 of about 1,511 (225)
Characteristic Analysis of the Stick-Slip Vibration of Gear Transmission System in High-speed Train
Jixie chuandong, 2015 In order to study the torsional vibration of gear transmission system under slippage in high-speed train.A parametric vibration model of the gear transmission system is developed when the time-varying stiffness and the transmission error are considered ...
Li Fuzhong, Huang Guanhua, He Hongyun
doaj
World Electric Vehicle JournalElectric vehicles (EVs) have fundamentally changed the noise, vibration, and harshness (NVH) landscape of automotive powertrains. In the absence of masking internal-combustion-engine noise, harmonic components such as gear whine, electric-motor orders ...
Krisztian Horvath
doaj +1 more source
International Journal of Urban and Regional Research, EarlyView.Abstract This article engages signage as a medium through which urban stakeholders negotiate the politics of housing redevelopment and gentrification in cities. Focusing on Toronto, we examine housing‐related signage in three neighbourhoods where social mix approaches to redevelopment have ushered in gentrification: Parkdale, Regent Park, and Moss Park.
Lindi Jahiu +2 more
wiley +1 more source
ALL POSSIBLE PASTS: Heritage, Simulacra, and Gentrification in Seoul
International Journal of Urban and Regional Research, EarlyView.Abstract Urban heritage scholars have often criticized simulacra as ‘bad’ copies that degrade the ‘good’ model of the past through commercialization and gentrification. This article challenges such Platonic dichotomies of good/bad and model/copy, arguing that the binary of good heritage and bad simulacra is flawed because heritage is itself actualized ...
Myung In Ji
wiley +1 more source
Dynamic Analysis of Transmission Error of Harmonic Gear Drive
工程科学与技术, 2019 Dynamic transmission error is an important indicator of the quality of harmonic gear transmission. It can also provide a basis for further improving the design and processing of harmonic reducer.
Xin PEI +4 more
doaj
Flexspline Pitch Deviation Rapid Measurement Method Using Offset Point Laser Sensors
MachinesFlexsplines in harmonic gear reducers are usually characterized by a large number of teeth, small modulus, and poor stiffness, which makes them difficult to measure using conventional gear measuring centers.
Xiaoyi Wang +7 more
doaj +1 more source
MATEC Web of Conferences, 2018 A mechanism consisting of a deformable surface and a gear unit with a curve is considered. An incompressible viscous liquid is applied to the surface. The gear unit rotates or moves along the surface.
Zavyalov Oleg
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The British Journal of Sociology, EarlyView.ABSTRACT How does the ability to weather insecurity give some an upper‐hand over others? This paper examines the interrelationship between housing and labour market precarity among middle class young professionals. Drawing on interviews with residents of co‐living schemes—for‐profit shared housing where tenants are on temporary rental contracts—it ...
Tim White
wiley +1 more source
Global Policy, EarlyView.ABSTRACT The European Union's proposed Space Law aims to establish a unified approach for sustainable space activities across the EU. While the EU's satellite constellations contribute to sustainability efforts, they can also have negative environmental impacts.
Elena Cirkovic, Vitali Braun
wiley +1 more source
Studying Tech Diplomacy—Introduction to the Special Issue on Tech Diplomacy
Global Policy, EarlyView.ABSTRACT This article serves as an introduction to the special issue on tech diplomacy, exploring its emergence and evolution as a distinct approach to global affairs in the era of the Fourth Industrial Revolution. Originating with Denmark's 2017 “TechPlomacy” initiative, tech diplomacy has gained global momentum, with over two dozen countries adopting
Corneliu Bjola, Markus Kornprobst
wiley +1 more source