Results 71 to 80 of about 9,857 (246)
AGRICULTURE IN A SOCIALIST CITY: Towards an Alter‐Urban Political Ecology
International Journal of Urban and Regional Research, EarlyView.Abstract Urban political ecology has developed as a critique of capitalist urbanization. This article develops the concept of alter‐urban political ecology to define urban environments emerging not from capitalist urbanization but from efforts to transform it. Drawing on archival research and ethnographic fieldwork in five urban farms in socialist Cuba,
Gustav Cederlöf
wiley +1 more source
Comparisons of modified Vasco X-2 and AISI 9310 gear steels [PDF]
Endurance tests were conducted with four groups of spur gears manufactured from three heats of consumable electrode vacuum melted (CVM) modified Vasco X-2. Endurance tests were also conducted with gears manufactured from CVM AISI 9310. Bench type rolling
Townsend, D. P., Zaretsky, E. V.
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Global Policy, EarlyView.ABSTRACT This article examines the evolution of European Union (EU) space policy through the lens of historical institutionalism, highlighting how security and defence considerations have been incrementally integrated into a domain originally framed as civilian and scientific.
Gustavo G. Müller, Philip De Man
wiley +1 more source
Study on IIobbing Experiment of of through hardened Gears
Jixie chuandong, 1994 The results of hobbing right-angle experiment for a group of through hardened involute gears （HBS 330-340） and for several groups of comparing experiments are described in this paper.Some factors which influenced the hobbing of fects-gcometric accuracy ...
Chen Yuan, et al.
doaj
Nihon Kikai Gakkai ronbunshu, 2017 Power transmission systems using gears require both large capacity and miniaturization. As a result, the gears used in power transmission need to be strong enough to withstand high loads and high engine speeds.
Yasuyoshi TOZAKI +4 more
doaj +1 more source
Engineering analysis and test results of the pre-stage planetary gear trains for wrist rotation and pitch assembly and azimuth and elevation assembly of the extendable stiff arm manipulator kit assembly [PDF]
In order to improve the performance capability of the Extendable Stiff Arm Manipulator (ESAM) it was necessary to increase the overall gear ratio by a factor of approximately four.
Morris, R. N.
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“THE NORMAL EXCEPTION”: EDOARDO GRENDI, MICROANALYSIS, AND GENERALIZATIONS*
History and Theory, EarlyView.ABSTRACT “The normal exception” has long been a slogan of microhistory. This oxymoronic phrase is the iconic rendering of an incidental sentence that appeared in a 1977 article by Edoardo Grendi. His article, titled “Micro‐analisi e storia sociale” (Microanalysis and Social History), is cited more often than it is read.
FRANCESCA TRIVELLATO
wiley +1 more source
Improvement in surface fatigue life of hardened gears by high-intensity shot peening [PDF]
Two groups of carburized, hardened, and ground spur gears that were manufactured from the same heat vacuum induction melted vacuum arc melted (VIM VAR) AISI 9310 steel were endurance tested for surface fatigue.
Townsend, Dennis P.
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Polarizer mechanism for the space telescope faint object spectrograph [PDF]
, 1983 The polarizer mechanism for the Space Telescope Faint Object Spectrograph is described. This device will allow spectropolarimetric measurements of faint astronomical objects. The mechanism employs a unique arrangement to meet functional requirements in a
Thulson, M. D.
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The EU as a Security Provider: Changing Foreign Policy Roles Amongst Nordic EU Member States
JCMS: Journal of Common Market Studies, EarlyView.Abstract This article addresses the Nordic European Union (EU) member states' changing national role conceptions prompted by concerns about a weakening international rules‐based order, a flagging transatlantic commitment and Russia's invasion of Ukraine.
Anna Michalski +2 more
wiley +1 more source