Results 41 to 50 of about 11,914 (281)

Speed-of-light pulses in the massless nonlinear Dirac equation with a potential [PDF]

open access: yes, 2017
We consider the massless nonlinear Dirac (NLD) equation in $1+1$ dimension with scalar-scalar self-interaction $\frac{g^2}{2} (\bar{\Psi} \Psi)^2$ in the presence of three external electromagnetic potentials $V(x)$, a potential barrier, a constant ...
Bishop, A. R.   +4 more
core   +2 more sources

Pengaruh Penggunaan Speed Humps Terhadap Tingkat Kebisingan [PDF]

open access: yes, 2011
Speed humps are speed limiting devices to protect pedestrians and reduce the accident rate. The installation of speed humps in residential can reduce the speed of motorists but, at the same time, also can create a problem. The purpose of this study is to
Jaganaputra, A. (Argya)   +1 more
core  

Nonlinear ion-acoustic (IA) waves driven in a cylindrically symmetric flow

open access: yes, 2010
By employing a self-similar, two-fluid MHD model in a cylindrical geometry, we study the features of nonlinear ion-acoustic (IA) waves which propagate in the direction of external magnetic field lines in space plasmas.
A. Tjulin   +55 more
core   +1 more source

EBSD Study of Creep‐Induced Lattice Misorientation in MgO‐Particle‐Reinforced Austenitic Steel Composites

open access: yesAdvanced Engineering Materials, EarlyView.
Creep experiments at 900°C on coarse‐grained steel‐ceramic composites containing recycled magnesia reveal that higher ceramic volume fractions significantly enhance the creep resistance. Detailed EBSD investigations identify subgrain formation in the steel matrix as the dominant deformation mechanism.
Moritz Müller   +6 more
wiley   +1 more source

REDUCTION IN CUTS SPEED AT THE BEGINNING OF A SORTING SIDINGS, EQUIPPED WITH QUASI-CONTINUOUS SPEED CONTROL SYSTEM

open access: yesNauka ta progres transportu, 2016
Purpose. Clear and uninterrupted operation of humps depends on the quality of technical equipment and control technology of cuts speed. Technology of interval and purposive regulation of cuts speed is used at most humps.
O. A. Nazarov
doaj   +1 more source

Simulating the Impact of Traffic Calming Strategies [PDF]

open access: yes, 2019
This study assessed the impact of traffic calming measures to the speed, travel times and capacity of residential roadways. The study focused on two types of speed tables, speed humps and a raised crosswalk.
Chimba, Deo, Mbuya, Christian
core   +1 more source

Surmounting collectively oscillating bottlenecks

open access: yes, 2008
We study the collective escape dynamics of a chain of coupled, weakly damped nonlinear oscillators from a metastable state over a barrier when driven by a thermal heat bath in combination with a weak, globally acting periodic perturbation.
Arnold V. I.   +11 more
core   +1 more source

Ring-like events: Cherenkov gluons or Mach waves? [PDF]

open access: yes, 2005
Similar to electromagnetic forces, strong interactions might induce such collective effects as Cherenkov and Mach waves. Their conical structure would be responsible for specific ring-like events.
Adamovich   +60 more
core   +3 more sources

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb   +6 more
wiley   +1 more source

Development of Congestion Severity Index for Speed Humps Utilizing Fundamental Parameters and Clustering Techniques - A Case Study in India

open access: yesTransactions on Transport Sciences
Traffic congestion has widespread negative impacts on the environment, urban development, and road safety, leading to increased commute times and heightened incidents of road rage and accidents.
Malaya Mohanty   +2 more
doaj   +1 more source

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