Results 41 to 50 of about 9,835 (134)

Nonlinear robust controller design for multi-robot systems with unknown payloads [PDF]

open access: yes
This work is concerned with the control problem of a multi-robot system handling a payload with unknown mass properties. Force constraints at the grasp points are considered.
Anderson, J. N.   +3 more
core   +1 more source

Kinematic stability of roller pairs in free rolling contact [PDF]

open access: yes
A set of generalized stability equations was developed for roller pairs in free rolling contact. A symmetric, dual contact model was used. Four possible external contact profiles that possess continuous contacting surfaces were studied. It was found that
Loewenthal, S. H., Savage, M.
core   +1 more source

Nova metoda proizvodnje šipki malog promjera i cijevi od teško oblikovljivog čelika kod kosog valjanja [PDF]

open access: yes, 2007
The paper discusses the process of hot rolling on skew rolling mills and compares it with other methods of manufacturing rods (shape milling) and tubes (pilger rolling).
A. Górniak   +2 more
core   +1 more source

A study of redundancy management strategy for tetrad strap-down inertial systems [PDF]

open access: yes
Algorithms were developed that attempt to identify which sensor in a tetrad configuration has experienced a step failure. An algorithm is also described that provides a measure of the confidence with which the correct identification was made ...
Bjorkman, W. S.   +3 more
core   +1 more source

High Speed Cylindrical Roller Bearing Analysis, SKF Computer Program CYBEAN. Volume 1: Analysis [PDF]

open access: yes
The CYBEAN (CYlindrical BEaring ANalysis) program was created to detail radially loaded, aligned and misaligned Cylindrical roller bearing performance under a variety of operating conditions.
Kleckner, R. J., Pirvics, J.
core   +1 more source

Quadrotor Manipulation System: Development of a Robust Contact Force Estimation and Impedance Control Scheme Based on DOb and FTRLS

open access: yes, 2019
The research on aerial manipulation systems has been increased rapidly in recent years. These systems are very attractive for a wide range of applications due to their unique features. However, dynamics, control and manipulation tasks of such systems are
Fanni, Mohamed, Khalifa, Ahmed
core  

Modeling DNA Structure, Elasticity and Deformations at the Base-pair Level

open access: yes, 2003
We present a generic model for DNA at the base-pair level. We use a variant of the Gay-Berne potential to represent the stacking energy between neighboring base-pairs.
A. Sarkar   +62 more
core   +1 more source

Making the Most of Opportunities to Learn What Works: A School District's Guide [PDF]

open access: yes, 2014
This guide for district and school leaders shows how to recognize opportunities to embed randomized controlled trials (RCTs) into planned policies or programs.
Alexandra Resch   +2 more
core  

Modification of the SHABERTH bearing code to incorporate RP-1 and a discussion of the traction model [PDF]

open access: yes
Recently developed traction data for Rocket Propellant 1 (RP-1), a hydrocarbon fuel of the kerosene family, was used to develop the parameters needed by the bearing code SHABERTH in order to include RP-1 as a lubricant choice. The procedure for inputting
Woods, Claudia M.
core   +1 more source

Tire tracks and integrable curve evolution

open access: yes, 2018
We study a simple model of bicycle motion: a segment of fixed length in multi-dimensional Euclidean space, moving so that the velocity of the rear end is always aligned with the segment.
Bor, Gil   +3 more
core   +1 more source

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