Results 11 to 20 of about 523,867 (182)

New Results Regarding the Construction Method for D‑optimal Chemical Balance Weighing Designs

open access: yesActa Universitatis Lodziensis. Folia Oeconomica, 2020
We study an experiment in which we determine unknown measurements of p objects in n weighing operations according to the model of the chemical balance weighing design. We determine a design which is D‑optimal. For the construction of the D‑optimal design,
Bronisław Ceranka, Małgorzata Graczyk
doaj   +1 more source

A Regular D‑optimal Weighing Design with Negative Correlations of Errors

open access: yesActa Universitatis Lodziensis. Folia Oeconomica, 2019
The issues concerning optimal estimation of unknown parameters in the model of chemical balance weighing designs with negative correlated errors are considered. The necessary and sufficient conditions determining the regular D‑optimal design and some new
Małgorzata Graczyk, Bronisław Ceranka
doaj   +1 more source

Quantum Algorithms for Weighing Matrices and Quadratic Residues [PDF]

open access: yes, 2000
In this article we investigate how we can employ the structure of combinatorial objects like Hadamard matrices and weighing matrices to device new quantum algorithms.
van Dam, Wim
core   +4 more sources

Notes on D‑optimal Spring Balance Weighing Designs

open access: yesActa Universitatis Lodziensis. Folia Oeconomica, 2018
Spring balance weighing design is a model of an experiment in which the result can be presented as a linear combination of unknown measurements of objects with factors of this combination equalling zero or one. In this paper, we assume that the variances
Bronisław Ceranka, Małgorzata Graczyk
doaj   +1 more source

A Highly D‑efficient Spring Balance Weighing Design for an Even Number of Objects

open access: yesActa Universitatis Lodziensis. Folia Oeconomica, 2019
The problem of determining unknown measurements of objects in the model of spring balance weighing designs is presented. These designs are considered under the assumption that experimental errors are uncorrelated and that they have the same variances ...
Małgorzata Graczyk, Bronisław Ceranka
doaj   +1 more source

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

Removable Weighing Lysimeter for Use in Horticultural Crops

open access: yesApplied Sciences, 2020
Water resources management is a priority issue in agriculture, especially in areas with water supply problems. Recently, one of the most widespread technologies for measuring crop water requirements are weighing lysimeters.
Juan Antonio Nicolás-Cuevas   +4 more
doaj   +1 more source

Physiological responses and behavioural organization of very low birth weight infants during swaddled versus traditional weighing

open access: yesNursing Open, 2023
Aim Despite the consequences of neonatal distress and agitation, preterm infants undergo stress owing to weighing procedures. The objective of this study was to enable very low birth weight infants to maintain adequate self‐regulation during weighing ...
Silvia Vicente‐Perez   +6 more
doaj   +1 more source

Influence of Piping on On-Line Continuous Weighing of Materials inside Process Equipment: Theoretical Analysis and Experimental Verification

open access: yesApplied Sciences, 2021
Due to the continuity and complexity of chemical systems, piping and operating conditions will have a significant effect on the on-line continuous weighing of materials inside process equipment.
Yuanlin Jing   +3 more
doaj   +1 more source

GRADE equity guidelines 4: guidance on how to assess and address health equity within the evidence to decision process [PDF]

open access: yes, 2017
Objective: The aim of this paper is to provide detailed guidance on how to incorporate health equity within the GRADE (Grading Recommendations Assessment and Development Evidence) evidence to decision process.
Akl, Elie A   +19 more
core   +1 more source

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