Results 11 to 20 of about 109,774 (246)

Optimum biased spring balance weighing designs with non-homogeneity of the variances of errors [PDF]

open access: yesJournal of Statistical Planning and Inference, 1992
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ceranka, Bronisław, Katulska, Krystyna
openaire   +4 more sources

Notes on the Regular E-Optimal Spring Balance Weighing Designs with Correlated Errors

open access: yesRevstat Statistical Journal, 2015
The paper deals with the estimation problem of individual weights of objects in Eoptimal spring balance weighing design. It is assumed that errors are equal correlated.
Bronisław Ceranka   +1 more
doaj   +2 more sources

Preliminary Testing of a Passive Exoskeleton Prototype Based on McKibben Muscles

open access: yesMachines
Upper-limb exoskeletons for industrial applications can enhance the comfort and productivity of workers by reducing muscle activity and intra-articular forces during overhead work.
Maria Paterna   +2 more
doaj   +2 more sources

Regular A-optimal spring balance weighing designs with correlated errors

open access: yesHacettepe Journal of Mathematics and Statistics, 2014
The problems linked with an E-optimal spring balance weighing design with correlated errors are discussed. The topic is focus on the determining the maximal eigenvalue of the inverse of the information matrix of estimators. The constructing method of the E-optimal design, based on the incidence matrices of balanced incomplete block designs, is ...
CERANKA, Bronisław   +1 more
openaire   +3 more sources

Notes on Selected Optimal Weighing Designs

open access: yesActa Universitatis Lodziensis. Folia Oeconomica, 2021
In this paper, some problems related to the construction of highly D‑efficient spring balance weighing designs are presented. We give some conditions determining the relations between the parameters of such designs and construction examples.
Małgorzata Graczyk, Bronisław Ceranka
doaj   +1 more source

On the Optimality of Spring Balance Weighing Designs

open access: yesThe Annals of Statistics, 1983
This paper deals with techniques for finding $\Phi$-optimal designs for weighing $v$ objects in $b$ weighings using a spring balance. The optimality functions considered encompass a large class of functions. Results are applied to find $A$-, $D$- and $E$-optimal designs and the optimal designs obtained are seen to be related to certain types of well ...
Jacroux, Mike, Notz, William
openaire   +3 more sources

A Measurement of Newton's Gravitational Constant [PDF]

open access: yes, 2006
A precision measurement of the gravitational constant $G$ has been made using a beam balance. Special attention has been given to determining the calibration, the effect of a possible nonlinearity of the balance and the zero-point variation of the ...
A. H. Slocum   +12 more
core   +2 more sources

Highly D-Efficient Weighing Designs for an Even Number of Objects

open access: yesRevstat Statistical Journal, 2018
In this paper we formulate how to add a = 1, 2, 3 runs to a near D-optimal weighing design to get a highly D-efficient weighing design when the number of objects p is even.
Bronisław Ceranka   +1 more
doaj   +1 more source

Catalogue of selected experimental plans

open access: yesBiometrical Letters, 2021
Summary There are many works in the literature on the construction of experimental plans based on weighing designs. Hence, it is useful to compile a catalogue of experimental designs with specific properties.
M. Graczyk, B. Ceranka
semanticscholar   +1 more source

Development and application of a sensitive, high precision weighing lysimeter for use in greenhouses [PDF]

open access: yes, 1985
A high precision weighing lysimeter for measuring evapotranspiration in greenhouses was developed. The instrument has a measurement of sensitivity of one part in 106, that is one order of magnitude better than any other so far described in the literature.
Bot, G.P.A.   +3 more
core   +3 more sources

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