Results 71 to 80 of about 2,404,385 (212)
Living the spectre of forced return: negotiating deportability in British immigration detention [PDF]
Migration Studies, 2018 Abstract Immigration detention and deportation are being increasingly utilised in many countries as key state responses to irregular migration. These practices work together to force migrants to their countries of origin or third countries, offering limited choice about whether to stay or leave.
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Archaeology in Oceania, Volume 60, Issue 2, Page 156-175, July 2025.ABSTRACT This paper examines ring trees—a type of culturally modified tree, intentionally created by Australian First Nations Aboriginal peoples by manipulating tree growth to form permanent loops (rings) within the structure. Historically, this site type has been underrepresented and underappreciated by academics and archaeologists.
Hannah Morris +3 more
wiley +1 more source
People and Nature, Volume 7, Issue 5, Page 1041-1055, May 2025.Abstract Reciprocity and relationality are themes which frequently emerge with respect to human–nature associations in Indigenous groups around the world. But many hunter‐gatherers have been shown to reject systems of reciprocity, instead favouring unconditional sharing both between each other and their environment through egalitarian social structures.
Simon Hoyte, Felix Mangombe
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AIP Advances, 2017 A single-phase axially-magnetized permanent-magnet (PM) oscillating machine which can be integrated with a free-piston Stirling engine to generate electric power, is investigated for miniature aerospace power sources.
Yi Sui +4 more
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CES Transactions on Electrical Machines and Systems, 2017 This paper investigates characteristics of ironless permanent magnet linear synchronous motor (PMLSM) based on Halbach array used for medium-speed (200km/h) maglev train. Long primary ironless coil is laid in the middle of track and the Halbach permanent
Zhihua Zhang +3 more
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Investigation of the Detent Force Characteristics of an X-Y Linear Synchronous Motor
Journal of the Magnetics Society of Japan, 2010 This paper discusses our examination into a decrease in detent force to improve the positioning accuracy of an X-Y linear synchronous motor (X-Y LSM). The finite element method was used to analyze detent force and static thrust. The detent force was decreased by changing the distance between the mover magnet centers of the X-Y LSM.
Arai, R., Inui, S., Ohira, Y.
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Fast Design Optimization and Comparative Analysis for Linear Permanent Magnet Motor with Magnet Skew, Auxiliary Tooth and Overhang Structure. [PDF]
Sensors (Basel), 2022 Kim KH, Woo DK.
europepmc +1 more source
IEEE Access, 2018 This paper investigates the thrust ripple of a consequent-pole permanent magnet linear synchronous motor (CP-PMLSM). The components of the thrust ripple are analyzed through the comparison of the thrust waves' constituent frequencies.
Xuzhen Huang +5 more
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Reduction of the Detent Force in a Flux-Switching Permanent Magnet Linear Motor
IEEE transactions on energy conversion, 2019 In this paper, the detent force caused by the end effect in a flux-switching permanent magnet linear motor (FSPMLM) with six slots and five poles is investigated and reduced by two different methods. First, the detent force is diminished by adjusting the
J. Zhao +5 more
semanticscholar +1 more source
Optimization of Permanent Magnet Linear Motors Based on Improved Finite Difference Method
IEEE AccessTo mitigate significant force end fluctuations in short primary permanent magnet linear synchronous motors (PMLSMs) caused by longitudinal end effects, this paper proposes a novel chamfered arc-shaped auxiliary pole structure and an enhanced finite ...
Mengxue Zhang, Liang Guo, Wenqi Lu
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