Results 31 to 40 of about 2,762,413 (264)

A Simulation and Experiment on the Optimization Design of an Air Outlet Structure for an Air-Assisted Sprayer

open access: yesAgriculture, 2023
In response to the issues of low-velocity zones and non-uniform jet velocity distribution in the airflow field of traditional air-assisted orchard sprayers, an arc-shaped air outlet suitable for axial-flow air-assisted systems is designed.
Shuaijie Jing   +6 more
doaj   +1 more source

Stability of second-order recurrences modulo pr

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2000
The concept of sequence stability generalizes the idea of uniform distribution. A sequence is p-stable if the set of residue frequencies of the sequence reduced modulo pr is eventually constant as a function of r.
Lawrence Somer, Walter Carlip
doaj   +1 more source

On strong uniform distribution IV

open access: yesJournal of Inequalities and Applications, 2001
This is an interesting contribution to metric uniform distribution and a continuation of earlier papers of the author on strong uniform distribution [Acta Arith. 56, 183--193 (1990; Zbl 0716.11036); Monatsh. Math. 132, 341--348 (2001; Zbl 1015.11037); Indag. Math., New Ser., 14, 233--240 (2003; Zbl 1054.11038)]. A typical result is the following. Let \(
openaire   +3 more sources

Coherent random permutations with record statistics

open access: yes, 2006
Random permutations with distribution conditionally uniform given the set of record values can be generated in a unified way, coherently for all values of $n$.
Gnedin, Alexander
core   +2 more sources

The energy distribution of an ion in a radiofrequency trap interacting with a nonuniform neutral buffer gas [PDF]

open access: yes, 2018
An ion in a radiofrequency (rf) trap sympathetically cooled by a simultaneously trapped neutral buffer gas exhibits deviations from thermal statistics caused by collision-induced coupling of the rf field to the ion motion.
Rouse, I., Willitsch, S.
core   +2 more sources

Uniform distribution in the n-dimensional torus

open access: yesLietuvos Matematikos Rinkinys, 2010
Limit distribution of endomorphisms of the n-dimensional torus is examined. The obtained result generalizes earlier results of the authors.
Gintautas Misevičius   +1 more
doaj   +1 more source

Pre-Shaped Burst-Mode Hybrid MOPA Laser System at 10 kHz Pulse Frequency

open access: yesSensors, 2023
A temporal pre-shaped burst-mode hybrid fiber-bulk laser system was illustrated at a 10 kHz rate with a narrow spectral linewidth. A theoretical model was proposed to counteract the temporal profile distortion and compensate for the desired one, based on
Shanchun Zhang   +3 more
doaj   +1 more source

Velocity field distributions due to ideal line vortices [PDF]

open access: yes, 2001
We evaluate numerically the velocity field distributions produced by a bounded, two-dimensional fluid model consisting of a collection of parallel ideal line vortices. We sample at many spatial points inside a rigid circular boundary.
A. C. Ting   +20 more
core   +3 more sources

Randomized Simplicial Hessian Update

open access: yesMathematics, 2021
Recently, a derivative-free optimization algorithm was proposed that utilizes a minimum Frobenius norm (MFN) Hessian update for estimating the second derivative information, which in turn is used for accelerating the search.
Árpád Bűrmen   +2 more
doaj   +1 more source

Shielding effects in random large area field emitters, the field enhancement factor distribution and current calculation

open access: yes, 2018
A finite-size uniform random distribution of vertically aligned field emitters on a planar surface is studied under the assumption that the asymptotic field is uniform and parallel to the emitter axis.
Biswas, Debabrata, Rudra, Rashbihari
core   +1 more source

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