Results 11 to 20 of about 125,886 (315)

Design and evaluation of operational characteristics of energy efficient crane-manipulator in-stallation for mobile transport-technological machines [PDF]

open access: yesНаучно-технический вестник Брянского государственного университета, 2019
The article describes the design and features of the original energy-efficient manipulation system for loading and unloading operations using a mobile transport and technological machine.
Lagerev A.V., Lagerev I.A.
doaj   +1 more source

Modeling of working processes in the frequency-adjustable hydraulic drive of manipulation systems with separate movement of links during operation of mobile machines [PDF]

open access: yesНаучно-технический вестник Брянского государственного университета, 2019
The article discusses the functional-structural scheme and the mathematical model of the working hydrodynamic processes in the frequency-adjustable hydraulic drive of the technological cranes-manipulators. The model allows to perform computer simulations
Lagerev A.V., Lagerev I.A.
doaj   +1 more source

Refining Mobile UML State Machines [PDF]

open access: yes, 2004
We study the semantics and refinement of mobile objects, considering an extension of core UML state machines by primitives that designate the location of objects and their moves within a network. Our contribution is twofold: first, we formalize the semantics of state machines in MTLA, an extension of Lamport's Temporal Logic of Actions with spatial ...
Knapp, Alexander   +2 more
openaire   +3 more sources

Mobile learning through indigenous languages : learning through a constructivist approach [PDF]

open access: yes, 2013
An increase in accessible electronic pedagogy available in African languages is vital in extending learning resources to resource constrained schools and multilingual communities.
Mmaki Jantjies   +3 more
core   +1 more source

Mobility Control for Machine-to-Machine LTE Systems

open access: yesCoRR, 2011
In this paper, we propose an efficient mobility control algorithm for the downlink multi-cell orthogonal frequency division multiplexing access (OFDMA) system for co-channel interference reduction. It divides each cell into several areas. The mobile nodes in each area find their own optimal position according to their present location.
Beom Hee Lee 0002, Seong-Lyun Kim
openaire   +3 more sources

Modeling of working processes in the throttle-adjustable hydraulic drive of manipulation systems with conjoint movement of links during operation of mobile machines [PDF]

open access: yesНаучно-технический вестник Брянского государственного университета, 2019
The article proposes a functional-structural scheme and a mathematical model of working hydrodynamic processes in a throttle-adjustable hydraulic drive of handling systems (cranes-manipulators) of mobile transport-technological machines during the ...
Lagerev A.V., Lagerev I.A.
doaj   +1 more source

Current Developments in Robotics and Mobile Machines [PDF]

open access: yesJournal of Intelligent & Robotic Systems, 2015
n ...
Massimo Callegari, Primo Zingaretti
openaire   +2 more sources

DESIGN AND STUDY OF DRIVE SWIVEL JOINTS FOR HYDRAULIC MANIPULATION SYSTEMS OF MOBILE TRANSPORT-TECHNOLOGICAL MACHINES [PDF]

open access: yesНаучно-технический вестник Брянского государственного университета, 2018
The paper presents the design and principle of operation of a new type of articulated connection of adjacent links of manipulation systems of mobile transport and technological machines – the drive swivel joints to provide a rotary rela-tive movement of ...
Lagerev A.V., Lagerev I.A.
doaj   +1 more source

Predicting mobile machine tool dynamics by experimental dynamic substructuring [PDF]

open access: yes, 2022
S.127-134Predicting mobile machine tool dynamics prior to moving the machine to a new part and/or location is essential to guide first-time-right in situ machining solutions.
Rentzsch, Hendrik   +2 more
core   +1 more source

Theoretical and experimental analysis of the lag and advance coefficients in motor vehicle driving wheels

open access: yesVojnotehnički Glasnik, 1998
The conditions of driving wheels adherence to the ground change constantly during operation and cause the change of wheels dynamic radii on the axle during straight-line motion.
Predrag Petrović
doaj   +1 more source

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