Results 61 to 70 of about 772 (221)

Design and Meshing Analysis of Involute Harmonic Drive

open access: yesJixie chuandong, 2015
The tooth profile of harmonic gear has a significant influence on the harmonic drive device performance,for the purpose to improve the harmonic drive performance,the involute tooth profile of harmonic drive is adopted as the research object,the conjugate
Wang Yanyi, Tan Qing
doaj  

HARMONIC DRIVE SELECTION [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2014
The variety of types and sizes currently in production harmonic drive is a problem in their rational choice. Properly selected harmonic drive must meet certain requirements during operation, and achieve the anticipated service life.
Piotr FOLĘGA
doaj  

Hunting in the Ghaznavid State: Courtly Culture, Military Practices and Political Power

open access: yesHistory, EarlyView.
Abstract Hunting occupied an important place in the royal court culture of the Ghaznavid state (963–1186 CE). Ghaznavid hunting culture developed through the interaction of Turkic‐Islamic political traditions, Persianate models of kingship and local ecological settings. Rather than constituting a fully formalized institution, Ghaznavid hunting practice
Arslan Durdu
wiley   +1 more source

Performance of Magnetic-Superconductor Non-Contact Harmonic Drive for Cryogenic Space Applications

open access: yesMachines, 2015
Harmonic drives are profusely used in aerospace mainly because of their compactness and large reduction ratio. However, their use in cryogenic environments is still a challenge. Lubrication and fatigue are non-trivial issues under these conditions.
Jose Luis Perez-Diaz   +17 more
doaj   +1 more source

VISUAL NEGOTIATIONS OF GENTRIFICATION IN TORONTO: Contestation, Politicization and Resistance through Urban Signage

open access: yesInternational 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

谐波传动中柔轮轮齿对柔轮变形的影响分析

open access: yesJixie chuandong, 2014
In traditional research of harmonic gear drive,the method used for solving the harmonic gear transmission conjugate tooth profile is generally based on the theory of envelope to solve conjugate tooth profile.The influence of the flexspline tooth isn’t ...
储著金, 谭晶
doaj  

ALL POSSIBLE PASTS: Heritage, Simulacra, and Gentrification in Seoul

open access: yesInternational 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

Privileged Precarity: How the Mobile Middle Class Leverage Housing Insecurity as Labour Market Strategy

open access: yesThe 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

双圆弧谐波齿轮传动基本齿形的研究

open access: yesJixie chuandong, 2014
Based on the study of arc tooth profile harmonic gear meshing principle,the design method of double arc harmonic gear drive rigidity wheel and flexible wheel basic tooth profile is proposed.Through threedimensional CAD design software SolidWorks to view ...
袁安富, 曾晶晶, 沈思思
doaj  

EU Space Law and Earth's Boundaries: Integrating Environmental Impact Assessment and Corporate Due Diligence

open access: yesGlobal 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

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