Results 31 to 40 of about 334,370 (335)

Motor Output Variability Impairs Driving Ability in Older Adults [PDF]

open access: yes, 2016
Background: The functional declines with aging relate to deficits in motor control and strength. In this study, we determine whether older adults exhibit impaired driving as a consequence of declines in motor control or strength. Methods: Young and older
Christou, Evangelos A.   +4 more
core   +2 more sources

Braking Scheme for Shunting and Rescue of a City Rail Transit Vehicle

open access: yesChengshi guidao jiaotong yanjiu
Objective The technical requirements for using locomotives to shunt and rescue city rail transit vehicles are analyzed and a braking scheme that integrates the shunting and rescue functions into the braking control unit of city rail transit vehicles is ...
SUN Huanyang, HU Kang, LUO Feiping
doaj   +1 more source

Reliability and Life Research of Certain Autonomous Emergency Solenoid Valve

open access: yesChengshi guidao jiaotong yanjiu
[Objective] To achieve the autonomous control and safe application of emergency solenoid valves, a reliability and accelerated life test research on autonomous emergency solenoid valves is carried out. The existing design is improved through test results
DU Zhanjiang, TAO Fuwen
doaj   +1 more source

Modeling the Friction Boundary Layer of an Entire Brake Pad with an Abstract Cellular Automaton

open access: yesLubricants, 2018
The principle energy exchange of a brake system occurs in the tribological boundary layer between the pad and the disc. The associated phenomena are primarily responsible for the dynamics of brake systems.
Georg-Peter Ostermeyer   +1 more
doaj   +1 more source

The Toeplitz algebra has nuclear dimension one

open access: yes, 2018
We prove the title by constructing 2-colourable completely positive approximations for the Toeplitz algebra. Besides results about nuclear dimension and completely positive contractive order zero maps, our argument involves projectivity of the cone over ...
Brake, Laura, Winter, Wilhelm
core   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

open access: yesAdvanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat   +6 more
wiley   +1 more source

THE EXPERIMENTAL DIDACTIC STAND FOR DETERMINING THE PARAMETERS OF THE GEAR WITH MAGNETORHEOLOGICAL CLUTCH AND BRAKE [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2014
In this paper the laboratory stand, designed to be used as a part of the Laboratory of Machine Design and Research which is part of the subject Fundamentals of Machine Design, is presented.
Jerzy BAJKOWSKI
doaj  

Integrated flight controller for light aircraft [PDF]

open access: yes, 1972
Controller-throttle engages spoiler/dive brake system when throttle setting is below a fixed power setting and gradually increases effect of spoiler/dive brake as throttle is moved toward idle position; since action is automatically reversible, a sudden ...
Ellis, D. R., Olcott, J. W., Seckel, E.
core   +1 more source

Do supernovae favor tachyonic Big Brake instead de Sitter? [PDF]

open access: yes, 2009
We investigate whether a tachyonic scalar field, encompassing both dark energy and dark matter-like features will drive our universe towards a Big Brake singularity or a de Sitter expansion.
Gergely, L. Á.   +4 more
core   +2 more sources

Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud   +7 more
wiley   +1 more source

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