Results 21 to 30 of about 493,599 (265)

Quasicrystal Tilings in Three Dimensions and Their Empires

open access: yesCrystals, 2018
The projection method for constructing quasiperiodic tilings from a higher dimensional lattice provides a useful context for computing a quasicrystal’s vertex configurations, frequencies, and empires (forced tiles).
Dugan Hammock, Fang Fang, Klee Irwin
doaj   +1 more source

Methods for Calculating Empires in Quasicrystals

open access: yesCrystals, 2017
This paper reviews the empire problem for quasiperiodic tilings and the existing methods for generating the empires of the vertex configurations in quasicrystals, while introducing a new and more efficient method based on the cut-and-project technique ...
Fang Fang, Dugan Hammock, Klee Irwin
doaj   +1 more source

Non-Local Game of Life in 2D Quasicrystals

open access: yesCrystals, 2018
On a two-dimensional quasicrystal, a Penrose tiling, we simulate for the first time a game of life dynamics governed by non-local rules. Quasicrystals have inherently non-local order since any local patch, the emperor, forces the existence of a large ...
Fang Fang   +3 more
doaj   +1 more source

CFD analysis and experimental comparison of novel roof tile shapes

open access: yesPropulsion and Power Research, 2017
In tiled pitched roofs, a ventilated layer reduces the heat transfer between tiles and roof structure by means of natural and forced convection, thereby also reducing the cooling energy requirement.
Michele Bottarelli   +4 more
doaj   +1 more source

Personality Assessment, Forced-Choice. [PDF]

open access: yes, 2015
Instead of responding to questionnaire items one at a time, respondents may be forced to make a choice between two or more items measuring the same or different traits. The forced-choice format eliminates uniform response biases, although the research on
Anna Brown, Brown, Anna
core   +1 more source

Ambiente térmico no interior de modelos de galpões avícolas em escala reduzida com ventilação natural e artificial dos telhados Thermal environment inside models of poultry housings in reduced scale with natural and artificial ventilated roofs

open access: yesEngenharia Agrícola, 2005
O presente trabalho teve o objetivo de avaliar o ambiente térmico no interior de modelos físicos de galpões avícolas construídos em escala reduzida (1:10). O conforto térmico foi avaliado por meio do Índice de Temperatura do Globo Negro e Umidade (ITGU),
Pedro A. dos Santos   +3 more
doaj   +1 more source

Forced Marriage: Prevalence and Service Response [PDF]

open access: yes, 2009
Aim The study aimed to inform policy for new guidelines to support statutory responsibility for dealing with cases of forced marriage, to improve understanding of its prevalence and examine responses to cases. What is a forced marriage?
Kumari, Vijay   +6 more
core   +5 more sources

On Fuglede’s conjecture and the existence of universal spectra [PDF]

open access: yes, 2006
Recent methods developed by, Too [18], Kolountzakis and Matolcsi [7] have led to counterexamples to Fugelde's Spectral Set Conjecture in both directions.
Farkas, Bálint   +5 more
core   +1 more source

Item Response Modeling of Forced-Choice Questionnaires [PDF]

open access: yes, 2011
Multidimensional forced-choice formats can significantly reduce the impact of numerous response biases typically associated with rating scales. However, if scored with classical methodology, these questionnaires produce ipsative data, which lead to ...
Alberto Maydeu-Olivares   +3 more
core   +1 more source

An-Adaptive-Size-Vector-Tiles-Pyramid-Construction-Method-Considering-Spatial-Data-Distribution-Density-Characteristics.rar

open access: yes, 2023
This dataset encompasses the original experimental data from the paper, along with the conventionally constructed fixed-size vector tiles and the adaptive-size vector tiles.
Guowen Li (14604803)
core   +1 more source

Home - About - Disclaimer - Privacy