Results 21 to 30 of about 258,282 (264)

Level Crossings of a Cauchy Process

open access: yesThe Annals of Probability, 1986
The authors use the well-known skew-product representation of planar Brownian motion, and a simple argument involving Brownian scaling and renewal theory for an embedded random walk, to establish the asymptotic behaviour of numbers of large, small, and medium crossings of zero by a Cauchy process. They further apply the results of a comparison paper to
Pitman, Jim, Yor, Marc
openaire   +2 more sources

Level-Crossing Optogalvanic Spectroscopy

open access: yesLe Journal de Physique Colloques, 1983
Optogalvanic spectroscopy is applied to the detection of level -crossings at zero and finite magnetic fields. The method provides a sensitive, Doppler-free technique for determining hyperfine structures in both lower and upper levels of atomic transitions.
Hannaford, P., Gough, D., Series, G.
openaire   +2 more sources

MODELLING THE RANKING OF LITHUANIAN RAILWAYS LEVEL CROSSING BY SAFETY LEVEL [PDF]

open access: yesTransport Problems, 2017
The article describes the assessment of safety of Lithuanian Railways level crossing. The statistical analysis of the railway accidents in Lithuania and abroad in recent years has shown that about 30% of all transport accidents in railway occur at ...
Gintautas BUREIKA   +2 more
doaj   +1 more source

Database Perlintasan Sebidang di JPL 349 dan JPL 350 Menggunakan Software CarryMap

open access: yesSemesta Teknika, 2020
Perlintasan sebidang merupakan jalur 0pertemuan antaraa jalan raya dan jalur kereta api. Pada umumnya banyak terdapat perlintasan sebidang yang tidak memenuhi kriteria teknis dalam menjamin keselamatan pengguna jalan dan kereta api. Permasalahan tersebut
Emil Adly   +3 more
doaj   +1 more source

Level Crossing in Toroidal On-chip Microcavities [PDF]

open access: yesConference on Lasers and Electro-Optics/International Quantum Electronics Conference, 2008
Level crossing between optical whispering-gallery modes is studied in toroidal microcavities. We photograph azimuthal and radial envelope patterns of crossed optical modes. We also investigate anti-crossing between modes and polarizations evolution.
Schwefel, Harald G. L.   +5 more
openaire   +2 more sources

Level crossing along sphaleron barriers [PDF]

open access: yesPhysical Review D, 1994
In the electroweak sector of the standard model topologically inequivalent vacua are separated by finite energy barriers, whose height is given by the sphale\-ron. For large values of the Higgs mass there exist several sphaleron solutions and the barriers are no longer symmetric.
Kunz, Jutta, Brihaye, Yves
openaire   +3 more sources

Monitoring of Shallow-Grooved Tramway Crossings

open access: yesCommunications, 2023
The article presents selected results and the sequencing of research into the project "Long-Term Monitoring of Rail Structures in Tramway Crossings with a Focus on Shallow-Grooved Crossings Aimed at the Optimization of their Maintenance and Noise ...
Magdalena Křečková   +1 more
doaj   +1 more source

Towards improving sustainability of rail transport by reducing traffic delays at level crossings: A case study for the State of Florida

open access: yesCleaner Logistics and Supply Chain, 2021
Rail transport makes a significant contribution to the economy of many geographical locations around the globe. Along with numerous merits, rail transport has some demerits as well, such as traffic delays and safety issues at level crossings.
Junayed Pasha   +5 more
doaj   +1 more source

Method for pre-processing of level crossing image [PDF]

open access: yesTransport Problems, 2015
Actuality of problem in the improvement of transport safety at level crossings (LC) is caused by increasing the number of vehicles and reducing discipline of vehicle drivers.
Roman RYBALKA, Konstantin HONCHAROV
doaj  

Level Crossings for Random Fields

open access: yesThe Annals of Probability, 1976
For an $n$-dimensional random field $X(\mathbf{t})$ we define the excursion set $A$ of $X(\mathbf{t})$ by $A = \{\mathbf{t} \in \mathbf{I}_0: X(\mathbf{t}) \geqq u\}$, where $I_0$ is the unit cube in $R^n.$ It is shown that the natural generalisation of the number of upcrossings of a one-dimensional stochastic process to random fields is via the ...
Adler, Robert J., Hasofer, A. M.
openaire   +2 more sources

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