Results 21 to 30 of about 607,497 (167)

On joint distributions for arbitrary variables [PDF]

open access: yesIEEE Signal Processing Letters, 1995
There has been considerable interest in the problem of joint representations for variables other than time and frequency. We compare the methods of Cohen (1991) and of Baraniuk and Jones (see Proc. IEEE Int. Conf. Acoust., Speech Signal Processing, ICASSP '93, p.320-323, vol.III) and show their equivalence for variables that have the same commutator as
Baraniuk, Richard G., Cohen, Leon
openaire   +2 more sources

Risk Analysis of Marine Environmental Elements Based on Kendall Return Period

open access: yesJournal of Marine Science and Engineering, 2020
Against the background of global warming and rising sea levels, the threat of typhoon disasters to marine engineering structures has become increasingly serious.
Yuanxin Li, Guilin Liu
doaj   +1 more source

Distribution Network Model Platform: A First Case Study

open access: yesEnergies, 2019
Decarbonisation policies have recently seen an uncontrolled increase in local electricity production from renewable energy sources (RES) at distribution level.
Mirna Grzanic   +2 more
doaj   +1 more source

Description of the Joint Probability of Significant Wave Height and Mean Wave Period

open access: yesJournal of Marine Science and Engineering, 2022
The bivariate probability distribution of significant wave heights and mean wave periods has an indispensable guiding role in the implementation of offshore engineering, which has attracted great attention.
Mingwen Zhao, Xiaodong Deng, Jichao Wang
doaj   +1 more source

Shared Logistics—Literature Review

open access: yesApplied Sciences, 2023
In the face of the energy crisis and the ever-increasing earth’s temperature, one of the ways to deal with these two challenges is to make better use of the existing resources, decoupling, and the circular economy.
Maria Matusiewicz, Dorota Książkiewicz
doaj   +1 more source

Distributing Load Flow Computations Across System Operators Boundaries Using the Newton–Krylov–Schwarz Algorithm Implemented in PETSc

open access: yesEnergies, 2018
The upward trends in renewable energy penetration, cross-border flow volatility and electricity actors’ proliferation pose new challenges in the power system management. Electricity and market operators need to increase collaboration, also in terms
Stefano Guido Rinaldo   +6 more
doaj   +1 more source

Unified Friction Formulation from Laminar to Fully Rough Turbulent Flow

open access: yesApplied Sciences, 2018
This paper provides a new unified formula for Newtonian fluids valid for all pipe flow regimes from laminar to fully rough turbulent flow. This includes laminar flow; the unstable sharp jump from laminar to turbulent flow; and all types of turbulent ...
Dejan Brkić, Pavel Praks
doaj   +1 more source

Discussion on quality assurance related issues in storage and transportation of aviation kerosene

open access: yesYou-qi chuyun, 2020
Aviation kerosene will go through numerous storage and transportation links from production to use. As the fuel of jet aircrafts, the aviation kerosene will follow the high requirements on the quality index specified in national standards.
Yumo WANG   +7 more
doaj   +1 more source

One-Log Call Iterative Solution of the Colebrook Equation for Flow Friction Based on Padé Polynomials

open access: yesEnergies, 2018
The 80 year-old empirical Colebrook function ξ, widely used as an informal standard for hydraulic resistance, relates implicitly the unknown flow friction factor λ, with the known Reynolds number Re and the known relative roughness of a pipe ...
Pavel Praks, Dejan Brkić
doaj   +1 more source

Probabilistic properties and applications of several variations of Brownian motion

open access: yesNantong Daxue xuebao. Ziran kexue ban, 2022
On the basis of standard Brownian motion, this paper discusses several kinds of variations related to standard Brownian motion in the form of probability distribution and joint distribution.
JIANG Peihua; ZHOU Qiaoyan; LAN Tianya; LIU Kexin
doaj   +1 more source

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