Results 191 to 200 of about 7,832,575 (224)

Innovative HPMC/PVP K90 Dissolving Microneedles Incorporating Tacrolimus-Loaded Cubosomes: A Novel Strategy for Managing Allergic Conjunctivitis. [PDF]

open access: yesPharmaceutics
Elhabal SF   +11 more
europepmc   +1 more source

New Construction of Optimum Chemical Balance Weighing Designs

open access: yesCalcutta Statistical Association Bulletin, 1987
The present paper deals with certain chemical balance weighing designs. The incidence matrices of BIB designs for v treatments have been used to construct these designs for p = v + 1 objects. Conditions have been obtained for making some of these designs “optimum”.
Ceranka, B., Katulska, K.
exaly   +4 more sources

Optimum chemical balance weighing designs under the restriction on weighings [PDF]

open access: yesDiscussiones Mathematicae Probability and Statistics, 2001
The problem addressed here is concerned with estimating individual weights of objects by using a chemical balance weighing design under the constraint on the number in which each object is weighed. The model for a chemical balance design is \(y(n\times 1)= x(n\times p)w(p\times 1)+ e(n\times 1)\), when \(y\) is a vector of observations, \(x\) is the ...
Ceranka, Bronisław   +1 more
core   +5 more sources

Relations between optimum biased spring balance weighing designs and optimum chemical balance weighing designs with non-homogeneity of the variances of errors

Lithuanian Mathematical Journal, 1994
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ceranka, B., Katulska, K.
exaly   +2 more sources

Optimum chemical balance weighing designs for estimating the total weight

Communications in Statistics - Theory and Methods, 1988
This deals with chemical balance weighing designs which attain a lower bound for the variance of the estimated total weight, The results extend those of Chacko Dey (1978).
Sanpei Kageyama
exaly   +2 more sources

Optimum Chemical Balance Weighing Designs Under Equal Correlations of Errors

Contributions To Statistics, 1998
The paper deals with the problem of estimating the individual weights of objects using a chemical balance weighing design with equal correlations of errors in the usual linear model. A lower bound for the variance of each of the estimated weights resulting from this chemical balance weighing design is obtained and a necessary and sufficient condition ...
B. Ceranka, K. Katulska
exaly   +2 more sources

Optimum chemical balance weighing designs with diagonal variance-covariance matrix of errors [PDF]

open access: yesDiscussiones Mathematicae Probability and Statistics, 2023
In this paper we study the estimation problem of individual measurements (weights) of objects in a model of chemical balance weighing design with diagonal variance - covariance matrix of errors under the restriction k₁ + k₂ < p, where k₁ and k₂ represent
Bronisław Ceranka, Małgorzata Graczyk
openaire   +2 more sources

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