Results 31 to 40 of about 8,764,462 (319)

Quantification of Aluminum Gallium Arsenide (AlGaAs) Wafer Plasma Using Calibration-Free Laser-Induced Breakdown Spectroscopy (CF-LIBS)

Molecules, 2022
In this work, we report the results of the compositional analysis of an aluminum gallium arsenide (AlGaAs) sample using the calibration-free laser-induced breakdown spectroscopy (CF-LIBS) technique.
Tahani A. Alrebdi, Amir Fayyaz, Haroon Asghar, Asif Zaman, Mamoon Asghar, Fatemah H. Alkallas, Atif Hussain, Javed Iqbal, Wilayat Khan   +8 more
doaj   +1 more source

Sample size calculations for cluster randomised controlled trials with a fixed number of clusters [PDF]

, 2011
Background\ud Cluster randomised controlled trials (CRCTs) are frequently used in health service evaluation. Assuming an average cluster size, required sample sizes are readily computed for both binary and continuous outcomes, by estimating a design ...
A Donner, A Donner, A Pourshams, AJ Avery, Alan J Girling, Alice J Sitch, C Brown, C MacArthur, C MacArthur, DM Murray, Jennifer Marsh, Karla Hemming, L Guittet, MJ Davies, MK Campbell, MK Campbell, P Armitage, PL Yudkin, Richard J Lilford, RJ Lilford, SJ Edwards, SM Kerry, SM Kerry, Z Feng   +23 more
core   +4 more sources

Sample Complexity of Dictionary Learning and other Matrix Factorizations [PDF]

, 2015
Many modern tools in machine learning and signal processing, such as sparse dictionary learning, principal component analysis (PCA), non-negative matrix factorization (NMF), $K$-means clustering, etc., rely on the factorization of a matrix obtained by ...
Bach, Francis, Gribonval, Rémi, Jenatton, Rodolphe, Kleinsteuber, Martin, Seibert, Matthias   +4 more
core   +6 more sources

Research results of local samples of winter garlic in the Republic of Dagestan

Овощи России, 2023
The collection of winter garlic from Yekaterinburg was transferred to the Federal Agrarian Research Center of the Republic of Dagestan. The Ekaterinburg collection contained specimens of Dagestan origin; when transferred to Dagestan, it was significantly
N. M. Nimatulaev, V. G. Suzan, N. V. Litvinenko, I. V. Grekhova   +3 more
doaj   +1 more source

Sample Efficient Estimation and Recovery in Sparse FFT via Isolation on Average [PDF]

IEEE Annual Symposium on Foundations of Computer Science, 2017
The problem of computing the Fourier Transform of a signal whose spectrum is dominated by a small number k of frequencies quickly and using a small number of samples of the signal in time domain (the Sparse FFT problem) has received significant attention
M. Kapralov
semanticscholar   +1 more source

Protozoa enumeration via microscope – some remarks on methodology

E3S Web of Conferences, 2018
For proper enumeration of protozoa in activated sludge good methodology is required. In this paper we present some remarks on microscopic methodology of protozoa enumeration.
Nicpoń Sara, Iliaszewicz Paula, Leoniak Maciej, Trusz-Zdybek Agnieszka   +3 more
doaj   +1 more source

The diversity of a distributed genome in bacterial populations

, 2010
The distributed genome hypothesis states that the set of genes in a population of bacteria is distributed over all individuals that belong to the specific taxon. It implies that certain genes can be gained and lost from generation to generation.
Baumdicker, F., Hess, W. R., Pfaffelhuber, P.   +2 more
core   +1 more source

Intermittence and roughening of periodic elastic media [PDF]

, 2000
We analyze intermittence and roughening of an elastic interface or domain wall pinned in a periodic potential, in the presence of random-bond disorder in (1+1) and (2+1) dimensions.
Alava, M. J., Duxbury, P. M., Seppälä, E. T.   +2 more
core   +2 more sources

Sequential inspection sampling plan based on Burr-Ⅻ amputated life testing with numerical illustrations and industrial applications

AIMS Mathematics
It is often desired for practical reasons to cease a life test at a predetermined period $ {{𝓽}}_{0} $. In this study, we provide sequential inspection sampling plan (SISP) for amputated life tests underlying the Burr Ⅻ (BTXII) distribution.
Mohammad Abiad, Md. Mahabubur Rahman, Oluwafemi Samson Balogun, Yusra A. Tashkandy, Mahmoud E. Bakr, M. Yusuf, Anoop Kumar, Haitham M. Yousof, Basma Ahmed   +8 more
doaj   +1 more source

Improving clinical trials using Bayesian adaptive designs: a breast cancer example

BMC Medical Research Methodology, 2022
Background To perform virtual re-executions of a breast cancer clinical trial with a time-to-event outcome to demonstrate what would have happened if the trial had used various Bayesian adaptive designs instead.
Wei Hong, Sue-Anne McLachlan, Melissa Moore, Robert K. Mahar   +3 more
doaj   +1 more source