Results 21 to 30 of about 6,275,058 (294)

Advances on Geometrical Limits in the Deep Drawing Process of Paperboard

open access: yesBioResources, 2016
The geometrical limits of the deep drawing process of paper to advanced shapes are not known. This report examines the technological limits of convex elements of the base shape in relation to the drawing height and shows the material behavior in the ...
Marek Hauptmann   +2 more
doaj   +1 more source

Improving Air Quality for Operators of Mobile Machines in Underground Mines

open access: yesAtmosphere, 2020
In underground mines, mobile mining equipment is critical for the production system. The microenvironment inside the mobile machine may cause exposure to strongly polluted mine air, which adversely affects the health and working performance of the ...
A. Szczurek   +3 more
semanticscholar   +1 more source

The Working Hydraulics of Valve-Controlled Mobile Machines: Classification and Review

open access: yes, 2020
Productivity, reliability, controllability, flexibility, and affordable costs represent key aspects in mobile machines. Additionally, due to the high fuel price and the introduction of stringent emission regulations for diesel engines, the reduction of
D. Padovani, M. Rundo, G. Altare
semanticscholar   +1 more source

Multi-criteria based design approach of multiphase permanent magnet low speed synchronous machines [PDF]

open access: yes, 2009
Version éditeur disponible à cette adresse : http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4797497&isnumber=4797494A design methodology dedicated to multi-phase permanent magnet synchronous machines (PMSMs) supplied by pulse width modulation ...
CHARPENTIER, Jean-Frederic   +3 more
core   +1 more source

Efficiency Improved Load Sensing System—Reduction of System Inherent Pressure Losses

open access: yesEnergies, 2017
Although more efficient than e.g., constant flow systems, hydraulic load sensing (LS) systems still have various losses, e.g., system inherent pressure losses (SIPL) due to throttling at pressure compensators.
Jan Siebert, Marco Wydra, Marcus Geimer
doaj   +1 more source

Improving Energy Efficiency of the Hydraulic Power Systems in Heavy Machinery

open access: yesEnergija, Ekonomija, Ekologija, 2020
The main goal of the research done in this paper is to examine possible improvements in energy efficiency of the hydraulic power systems and with this lower gas emission from working machinery.
Dejvid Anastasovski   +4 more
doaj   +1 more source

Possible innovative technical measures for risk prevention during the use of mobile machines with remote guide/control

open access: yes, 2020
The application of remote control systems on different types of machines used outdoors has found a greater diffusion in recent years. In many sectors (agriculture, forestry, earthmoving, etc.) machines with a remote control system are designed to trace ...
M. Pirozzi   +3 more
semanticscholar   +1 more source

A Hybrid Hydraulic-Electric Architecture (HHEA) for High Power Off-Road Mobile Machines

open access: yesASME/BATH 2019 Symposium on Fluid Power and Motion Control, 2019
Traditionally, off-road mobile machines such as excavators and wheel loaders are primarily powered by hydraulics and throttling valves are used to control their work circuits.
Perry Y. Li   +2 more
semanticscholar   +1 more source

Computation of Optimal Current References for Flux-weakening of Multi-Phase Synchronous Machines [PDF]

open access: yes, 2012
Multi-phase synchronous machines are more and more used in specific applications where high power density, low bus voltage, wide speed range and fault-tolerant capabilities are required. Due to the high number of degrees of freedom, multi-phase machines
Bassel Aslan   +13 more
core   +1 more source

Communicating Mobile Processes [PDF]

open access: yes, 2004
This paper presents a new model for mobile processes in occam-pi. A process, embedded anywhere in a dynamically evolving network, may suspend itself mid-execution, be safely disconnected from its local environment, moved (by communication along a channel)
Barnes, Frederick R.M.   +3 more
core   +1 more source

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