Results 11 to 20 of about 13,975,826 (243)

Experimental Testing of Tip-Timing Methods used for Blade Vibration Measurement in the Aero-Engine [PDF]

open access: yes, 2004
An important component within the jet engine in terms of vibration and high cycle fatigue (HCF) is the blade. This is the component where continuously higher demands on weight and loading are being made.
Grant, Kelly
core   +7 more sources

Timing diagrams requirements modeling using Event-B formal methods [PDF]

open access: yes, 2010
Timing diagrams provide an intuitive graphical specification for time constraints and causal dependencies between a system’s objects. Such a view can provide useful insight during Requirements Engineering (RE).
Snook, Colin   +3 more
core   +2 more sources

transit-timing/transit-timing: Transit Timing En Masse

open access: yes, 2022
This repository contains source code for the "TESS Transit Timing of 277 Planets" paper. The repository provides code (1) to process TESS light curves (with 2, 10, or 30-minute sampling) to extract transit times, and (2) to automatically download arXiv ...
transit-timing
core   +1 more source

Modeling circadian and sleep-homeostatic effects on short-term interval timing [PDF]

open access: yes, 2015
Short-term interval timing i.e., perception and action relating to durations in the seconds range, has been suggested to display time-of-day as well as wake dependent fluctuations due to circadian and sleep-homeostatic changes to the rate at which an ...
Jakub eSpäti   +23 more
core   +1 more source

Syntactic Variation [PDF]

open access: yes, 2007
Lisa J. Green. "Syntactic Variation", Sociolinguistic Variation: Theories, Methods, and Applications. Ed. Robert Bayley and Ceil Lucas. Cambridge University Press, 2007.This chapter considers the syntax of dialects of English from a view that ...
Green, Lisa J
core   +3 more sources

Capacitance Tip Timing Techniques in Gas Turbines [PDF]

open access: yes, 2003
The vibration of turbomachinery blades is an important phenomenon to understand, observe and predict and is the reason for developing a tip timing measurement system.
Lawson, Craig P.
core   +7 more sources

A discrete time method to the first variation of fractional order variational functionals [PDF]

open access: yesOpen Physics, 2013
Abstract The fact that the first variation of a variational functional must vanish along an extremizer is the base of most effective solution schemes to solve problems of the calculus of variations. We generalize the method to variational problems involving fractional order derivatives.
Pooseh, S., Almeida, R., Torres, D.F.M.
openaire   +4 more sources

Variational iteration method for the time-fractional Fornberg–Whitham equation

open access: yesComputers & Mathematics with Applications, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mehmet Giyas Sakar   +2 more
openaire   +2 more sources

Onset patterns in autism: Variation across informants, methods, and timing [PDF]

open access: yesAutism Research, 2018
While previous studies suggested that regressive forms of onset were not common in autism spectrum disorder (ASD), more recent investigations suggest that the rates are quite high and may be under‐reported using certain methods. The current study undertook a systematic investigation of how rates of regression differed by measurement method.
Sally Ozonoff   +9 more
openaire   +4 more sources

The start of migration correlates with arrival timing, and the total speed of migration increases with migration distance in migratory songbirds: a cross-continental analysis

open access: yesMovement Ecology, 2019
Background Anthropogenic changes in the climate and environment have globally affected ecological processes such that the spatiotemporal occurrence of the main annual cycle events (i.e., breeding, wintering, moulting, and migration) has shifted in ...
Heiko Schmaljohann
doaj   +1 more source

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