Results 31 to 40 of about 476,574 (178)
E3S Web of Conferences, 2018 For safe operation of mine hoisting machines (MHM) in the mining industry, it is necessary to provide high constructive reliability of brake systems, in particular, brake systems based on the block brake.
Zabolotnyi Kostiantyn +2 more
doaj +1 more source
Australian Journal of Politics &History, EarlyView.ABSTRACT ‘Middle Australia’ became a ubiquitous term of social categorisation and political positioning during the latter decades of the 20th century. This article examines how this concept was variously used in the metropolitan print media in the guises of the Sydney Morning Herald and The Age of Melbourne, including in their reporting of federal and ...
Chris Beer
wiley +1 more source
The specifics of non‐routine task changes: A granular approach
Contemporary Economic Policy, EarlyView.Abstract This paper estimates granular specific non‐routine tasks and examines employment reallocation across those tasks in the United States. Employment shifts into decision‐making, technology, and information‐related tasks account for 90% of high‐wage employment growth.
Carol A. Scotese
wiley +1 more source
Improved Visual Hook Capturing and Tracking for Precision Hoisting of Tower Crane
Advances in Mechanical Engineering, 2013 To maintain safe operation of the tower crane, it is important to monitor the activities of the hook system. Visual monitoring and image recognition are the optimum methods for crane hook tracking and precision hoisting.
Yanming Li, Shuangyuan Wang, Bingchu Li
doaj +1 more source
Mathematical modeling of energy loss reduction in gear boxes of oil and gas technological transport
Проблеми трибології, 2021 The work is aimed at solving the problem of reducing energy losses in transmission units of hoisting machines for repairing wells. Method of rapid heating and maintaining the optimal temperature in the transmission units of lifting units by using the ...
I.M. Mykytiy
doaj +1 more source
The complexity of small universal Turing machines : a survey [PDF]
, 2009 We survey some work concerned with small universal Turing machines, cellular automata, tag systems, and other simple models of computation. For example it has been an open question for some time as to whether the smallest known universal Turing machines ...
Woods, Damien, Neary, Turlough
core +1 more source
, 2008 Phase-split synchronous motors supplied by multiple three-phase Load Commutated Inverters are of importance in high power applications. A criticality of such systems is the possibility that commutations within different stator windings may overlap ...
Simone Castellan +3 more
core +1 more source
Developmental Medicine &Child Neurology, EarlyView.Safety strategies used by adults with complex forms of cerebral palsy when participating in community‐based physical activity were explored in this study. Physical assistance was the main safety strategy in use, provided for four key purposes. The attributes of support people in community settings was key to experiences of safety.
Georgia B McKenzie +6 more
wiley +1 more source
Classical Measurement Methods and Laser Scanning Usage in Shaft Hoist Assembly Inventory
E3S Web of Conferences, 2018 The shaft hoist assembly is the base of underground mining plant. Its efficiency and correct operation is subject to restrictive legal regulations and is controlled on a daily visual assessment by shaft crew and energomechanics.
Jaśkowski Wojciech +3 more
doaj +1 more source
Dynamic Efficiency of a Container Crane’s Hoisting Transmission System under Hoisting Dynamic Load [PDF]
, 2016 The dynamic efficiency of hoisting transmission system on a container crane is fundamental for accurate efficiency prediction, while the dynamic efficiency of hoisting transmission system has not been investigated sufficiently.
Yuantao Sun +3 more
core +1 more source