Results 21 to 30 of about 869,396 (264)

Variance Spectroscopy

open access: yesThe Journal of Physical Chemistry Letters, 2015
Spectroscopic analysis and study of nanoparticle samples is often hampered by structural diversity that presents a complex superposition of spectral signatures. By probing the spectra of small volumes within dilute samples, we can expose statistical variations in composition to obtain information unavailable from bulk spectroscopy. This new approach is
Streit, Jason K.   +4 more
openaire   +3 more sources

Effect of Thermal Variances on Flexible Pavements

open access: yesJournal of Sustainable Construction Materials and Technologies, 2022
This article presents recent findings on the effect of thermal variances on pavements. The study presents findings from different researchers and groups across the globe.
Terlumun Sesugh   +3 more
doaj   +1 more source

FLEXIBLE BUDGET OF SPORT COMPETITIONS [PDF]

open access: yesSport Mont, 2009
Manager of sport competition has right to decide and also to take responsibility for costs, income and financial results. From economic point of wiev flexible budget and planning cost calculations is top management base for analyzing success level of ...
Dragan Vukasović
doaj  

Comparing Perceptions of Students, Teachers, and Parents on Disciplinary Issues in Public Senior High Schools – A Case Study of Schools in Kumasi, Ghana [PDF]

open access: yesE-Journal of Humanities, Arts and Social Sciences
The purpose of this study was to examine the perceptions of students, teachers, and parents on disciplinary issues in Public Senior High Schools in Kumasi, Ghana.
Paul Kwasi Kumah   +2 more
doaj   +1 more source

ESTIMATINON GENOTYPIC PHENOTYPIC VARIANCES FOR BARLEY GENOTYPES [PDF]

open access: yesMesopotamia Journal of Agriculture, 2013
Twenty four genotype of barley were used in addition to the local variety (black barley), according to random complete block design (R.C.B.D.) with three replications under the rainfed conditions of northern area of Iraq.
M. Al-Taweel
doaj   +1 more source

An indoor variance-based localization technique utilizing the UWB estimation of geometrical propagation parameters [PDF]

open access: yes, 2018
A novel localization framework is presented based on ultra-wideband (UWB) channel sounding, employing a triangulation method using the geometrical properties of propagation paths, such as time delay of arrival, angle of departure, angle of arrival, and ...
Gaillot, Davy P.   +9 more
core   +2 more sources

Volatility interdependences in the Saudi stocks market

open access: yesEconomic Journal of Emerging Markets, 2019
This study attempts to answer whether there is an interaction and volatility between the variances of the stock returns in the Saudi market. The sample represents daily stock prices of five sectors i.e.
Yassin Ibrahim Eltahir   +3 more
doaj   +3 more sources

Seasonal and interannual variations of gravity wave activity in the low-latitude mesosphere and lower thermosphere over Tirunelveli (8.7° N, 77.8° E) [PDF]

open access: yesAnnales Geophysicae, 2008
The Mesosphere and Lower Thermosphere (MLT) winds acquired by medium frequency (MF) radar at Tirunelveli (8.7° N, 77.8° E) for the years 1993–2007 are used to study seasonal and interannual variabilities of gravity wave (GW) variances in the ...
S. Sridharan, S. Sathishkumar
doaj   +1 more source

Approximate variances for tapered spectral estimates

open access: yes, 2011
We propose an approximation of the asymptotic variance that removes a certain discontinuity in the usual formula for the raw and the smoothed periodogram in case a data taper is used.
Amrein, Michael, Künsch, Hans R.
core   +1 more source

Eigenvalues of block structured asymmetric random matrices [PDF]

open access: yes, 2015
We study the spectrum of an asymmetric random matrix with block structured variances. The rows and columns of the random square matrix are divided into $D$ partitions with arbitrary size (linear in $N$).
Aljadeff, Johnatan   +2 more
core   +1 more source

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