Results 11 to 20 of about 5,184,155 (262)

Revision of PV2 criteria based pedestrian crossing warrants

open access: yesTransport, 2020
Several guideline documents on pedestrian crossing warrants are followed around the world. Peak hour pedestrian volume “P” and vehicular volume “V” are two most commonly used factors in these guidelines.
Udit Jain, Rajat Rastogi
doaj   +1 more source

Modelling travel time distribution and its influence over stochastic vehicle scheduling

open access: yesTransport, 2019
Due to the paucity of well-established modelling approaches or well-accepted travel time distributions, the existing travel time models are often assumed to follow certain popular distributions, such as normal or lognormal, which may lead to results ...
Yindong Shen   +3 more
doaj   +1 more source

A Statistical Method for Estimating Activity Uncertainty Parameters to Improve Project Forecasting

open access: yesEntropy, 2019
Just like any physical system, projects have entropy that must be managed by spending energy. The entropy is the project’s tendency to move to a state of disorder (schedule delays, cost overruns), and the energy process is an inherent part of any ...
Mario Vanhoucke, Jordy Batselier
doaj   +1 more source

New Distribution for Fitting Discrete Data: The Poisson-Gold Distribution and Its Statistical Properties

open access: yesAustrian Journal of Statistics, 2021
Motivated mainly by lifetime issues, a new lifetime distribution coined ``Discrete Poisson-Gold distribution'' is introduced in this paper. Different structural properties of the new distribution are derived including moment generating function and the ...
Ahmad Hanandeh, Amjad D. Al-Nasser
doaj   +1 more source

A genetic algorithm for face fitting [PDF]

open access: yes, 2014
Accurate estimation of the shape of human faces has many applications from computer-imaging to psychological research. One well known method is to fit a Three Dimensional Morphable Model to a target image.
Tiddeman, Bernard Paul   +2 more
core   +1 more source

Generating Virtual Even-Aged Silver Fir Stand Structure Based on the Measured Sample Plots

open access: yesSouth-East European Forestry, 2016
Background and Purpose: The aim of this article is to create a virtual forest stand based on the field measurement of spatially separated sample plots and to examine its credibility based on the deviation of the basic characteristics of the virtual stand
Karlo Beljan   +3 more
doaj   +1 more source

Modelling of non‐Markovian queuing systems

open access: yesTechnological and Economic Development of Economy, 2006
The purpose of this paper is to suggest a method and software for evaluating queuing approximations. A numerical queuing model with priorities is used to explore the behaviour of exponential phase‐type approximation of service‐time distribution.
Giedrius Mickevičius   +1 more
doaj   +1 more source

Effects of different seasonal fitting methods on the spatial distribution characteristics of common mode errors

open access: yesFrontiers in Earth Science, 2023
This study investigated the effects of various seasonal fitting techniques on the spatial distribution of the common mode errors taking the coordinate time series of the continuous GPS reference stations of the Crustal Movement Observation Network of ...
Peiyu Miao   +7 more
doaj   +1 more source

Fitting Procedure to Reconstruct the Size Distribution and the Concentration of Silver Colloidal Nanoparticles from UV-Vis Spectra

open access: yesNanomaterials, 2022
In this work, a complete fitting procedure of UV-Vis spectra of silver nanoparticles in colloidal solutions is reported. The fitting function, based on the Beer–Lambert law, Mie theory, and log-normal probability distribution of nanoparticles’ sizes, is ...
Julio Car, Nikša Krstulović
doaj   +1 more source

Combined approaches to flexible fitting and assessment in virus capsids undergoing conformational change [PDF]

open access: yes, 2013
Fitting of atomic components into electron cryo-microscopy (cryoEM) density maps is routinely used to understand the structure and function of macromolecular machines.
Shakeel, S.   +10 more
core   +1 more source

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