Results 281 to 290 of about 8,764,462 (319)

Random Forests machine learning applied to gas chromatography - Mass spectrometry derived average mass spectrum data sets for classification and characterisation of essential oils.

Talanta: The International Journal of Pure and Applied Analytical Chemistry, 2020
Differences in chemical profiles of various essential oils (EOs) come from the fact that each plant species and chemotype has a distinctive secondary metabolism.
Leo Lebanov, L. Tedone, A. Ghiasvand, B. Paull   +3 more
semanticscholar   +1 more source

Stacking-Layer-Number Dependence of Water Adsorption in 3D Ordered Close-Packed g-C3 N4 Nanosphere Arrays for Photocatalytic Hydrogen Evolution.

Angewandte Chemie, 2019
Water adsorption capacity is a key factor to influence the photocatalytic H2 evolution activity of polymeric g-C3 N4  . Herein, we report the synthesis of 3D ordered close-packed g-C3 N4 nanosphere arrays (CNAs) that significantly enhance the water ...
Bo Lin, Guidong Yang, Lianzhou Wang
semanticscholar   +1 more source

Operating Characteristic and Average Sample Number Functions for Attribute-Based Sequential Test Plans

Journal of Quality Technology, 1989
On presente un programme Fortran applicable a ces plans. L'echantillonnage peut etre base sur une distribution binomiale ou de Poisson. Le programme peut analyser des plans sequentiels tronques avec des frontieres lineaires, des plans a echantillonnage double et des plans a taille d'echantillon ...
openaire   +1 more source

The molecular structure of polyethylene. XI. Weight‐ and number‐average molecular weights of selected samples

Journal of Polymer Science, 1962
AbstractImproved methods for measuring weight‐ and number‐average molecular weight of polymers soluble only at elevated temperatures are applied to selcted samples of polyethylene. For two samples of essentially linear polyethylene, number‐average molecular weights by cryoscopy are 11,500 and 13,000, and weight‐average molecular weights by light ...
V. Kokle, F. W. Billmeyer, L. T. Muus, E. J. Newitt   +3 more
openaire   +1 more source

Determining the optimal number of individual samples to pool for quantification of average herd levels of antimicrobial resistance genes in Danish pig herds using high-throughput qPCR

Veterinary Microbiology, 2016
The primary objective of this study was to determine the minimum number of individual fecal samples to pool together in order to obtain a representative sample for herd level quantification of antimicrobial resistance (AMR) genes in a Danish pig herd, using a novel high-throughput qPCR assay.
Clasen, Julie, Mellerup, Anders, Olsen, John Elmerdahl, Angen, Øystein, Folkesson, Anders, Halasa, Tariq, Toft, Nils, Birkegard, Anna Camilla   +7 more
openaire   +3 more sources

Estimating the Number of Fish Landed from Their Total Weight c and a Sample Average Weight

Canadian Journal of Fisheries and Aquatic Sciences, 1994
Assessing the status of a commercially exploited fish stock usually involves fitting a model for the stock's dynamics to observations of the number of fish landed. Typically, the number of fish landed is estimated from the ratio of the total landed weight, which is known exactly, over the sample average weight of a fish. This paper examines how errors
openaire   +1 more source

Moments of the decisive sample number and of the average time to termination of sequential tests

Communications in Statistics - Theory and Methods, 1976
The moments of the decisive sample number and of the average time to termination of sequential tests are derived. All moments depend only on the probability of continuation of the sequential test at each step, or at each instant of time for time processes. Two theorems are proved.
openaire   +1 more source

Measurement of the average number ?eff of neutrons emitted per single capture event for samples of Pu239 with impurities of the isotope Pu240 and the effective resonance capture integral of Pu240

The Soviet Journal of Atomic Energy, 1956
In this article we present the results of measurement of νeff in Fermi spectra with lower bounds of 0.15 ev (gadolinium filter) and 0.4 ev (cadmium filter) for samples of Pu239 with various concentrations of impurities of the isotope Pu240 (0% 1.6%, 2.5%, 6.5%, 16%) and the effective resonance absorption integral of Pu240.
B. G. Erozolimsky, I. ?. Kutikov, Yu. P. Dobrynin, M. I. Pevzner, L. S. Danelian, S. S. Moskalev   +5 more
openaire   +1 more source

An optimal design of a skip lot sampling plan of type V by minimizing average sample number

2012
In this paper, we propose a designing methodology to find the optimal parameters of skip-lot sampling plan of type V (SkSP-V) in terms of reducing the average sample number. The two-points on the operating characteristic curve approach is used to find the design parameters of the proposed plan and the reference plan as well.
Aslam, M, Balamurali, S, Jun, CH, Ahmad, M, Rasool, M   +4 more
openaire   +1 more source

Cancer treatment and survivorship statistics, 2022

Ca-A Cancer Journal for Clinicians, 2022
Kimberly D Miller, Leticia M Nogueira, Angela B Mariotto   +2 more
exaly