Results 21 to 30 of about 23,963 (268)

X-ray Flares from Markarian 501 [PDF]

open access: yes, 2004
Motivated by the recent finding of hierarchical X-ray flaring phenomenon in Mrk 421, we conducted a systematic search for X-ray flares from Mrk 501, another well-known TeV blazar, by making use of the rich {\em RXTE} archival database. We detected flares
Bottcher M.   +6 more
core   +4 more sources

Load Distribution and Dynamic Response in Torque Split Applications

open access: yesMachines, 2022
This study consists of constructing and analyzing gear mathematical models of torque split systems for contact pressure distribution and dynamic transmission error at different gear positions concerning phase angles.
Süleyman Emre Civan, Cihan Demir
doaj   +1 more source

Finite-difference methods for simulation models incorporating non-conservative forces

open access: yes, 1998
We discuss algorithms applicable to the numerical solution of second-order ordinary differential equations by finite-differences. We make particular reference to the solution of the dissipative particle dynamics fluid model, and present extensive results
d’Humières D.   +2 more
core   +1 more source

Soliton ratchets [PDF]

open access: yes, 2001
The mechanism underlying the soliton ratchet, both in absence and in presence of noise, is investigated. We show the existence of an asymmetric internal mode on the soliton profile which couples, trough the damping in the system, to the soliton ...
A. Ajdari   +23 more
core   +2 more sources

The Diversity of Fisheries Based Livelihoods in the Berau Delta, East Kalimantan [PDF]

open access: yes, 2016
Fisheries based livelihoods in the Berau Delta are diverse. The everyday life of small-scale fishers shows that gear diversification, changing fishing gear over a lifetime and practical knowledge to access good fishing grounds in the rich coastal waters ...
Gunawan, B. I. (Bambang)
core   +3 more sources

Reversing a granular flow on a vibratory conveyor

open access: yes, 2003
Experimental results are presented on the transport properties of granular materials on a vibratory conveyor. For circular oscillations of the shaking trough a non-monotonous dependence of the transport velocity on the normalized acceleration is observed.
C. A. Kruelle   +6 more
core   +1 more source

Porous Hybrid Soft Actuators From Liquid Crystal Networks and Lyotropic Chromonic Liquid Crystal Templated Hydrogels

open access: yesAdvanced Materials, EarlyView.
The graphic illustrates the design of a hybrid bilayer composed of a liquid crystal hydrogel (LCH) and a liquid crystal network (LCN). The figure highlights the magnetic alignment of the chromonic hydrogel and the thermal‐responsive actuation of the LCN along with the LCH when both layers are aligned or misaligned, enabling programmable, light‐driven ...
Ramón Santiago Herrera Restrepo   +13 more
wiley   +1 more source

Reduction of Noise and Vibration of Spur Gear by Using Asymmetric Teeth Profiles with Tip Relief

open access: yesJournal of Engineering, 2015
Reduction of noise and vibration in spur gear experimentally by using asymmetric teeth profiles with tip relief was presented. Both of classical (symmetric) and asymmetric (with and without tip relief) spur gears are used in this work.
Mohammad Qasim Abdullah   +2 more
doaj   +2 more sources

Aircraft turning ground maneuvers [PDF]

open access: yes, 2017
In this project a fully parameterized mathematical model of an aircraft turning on the ground in order to get the maximum aircraft speed and minimum infrastructure taxiway radius for three different types of aircrafts (A320, A380 and B737) is developed.
Roca, Guillem
core  

Backward Compatibility to Sustain Market Dominance – Evidence from the US Handheld Video Game Industry [PDF]

open access: yes, 2010
The introduction of a new product generation forces incumbents in network industries to rebuild their installed base to maintain an advantage over potential entrants.
Claussen, Jörg   +2 more
core   +1 more source

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