Results 11 to 20 of about 171,423 (192)
On incomplete and balanced incomplete block designs [PDF]
Proceedings of the American Mathematical Society, 1963 By an incomplete block design we will mean an arrangement of v different varieties of objects in b distinct blocks or sets such that a block does not contain all the varieties and a variety appears at most once in a block. An incomplete block design which satisfies two extra conditions, viz.
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Notes on the Regular E-Optimal Spring Balance Weighing Designs with Correlated Errors
Revstat 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
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Optimum Choice of Covariates for a Series of SBIBDS Obtained Through Projective Geometry [PDF]
, 2007 A block design set up is considered in presence of a number of controllable covariates. The problem is that of choosing the values of the covariates so that for a given block design, it is optimum in the sense of attaining minimum variance for the ...
Das, Premadhis +2 more
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About Some Properties and Constructions of Experimental Designs
Acta Universitatis Lodziensis. Folia Oeconomica, 2016 In this paper, we consider the problems related to the determining plan of the experiment performed according to the model of the chemical balance weighing design under additional assumption that the experimental errors are equally negatively correlated.
Bronisław Ceranka, Małgorzata Graczyk
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Foliar nitrogen fertilization attenuating harmful effects of salt stress on purple basil [PDF]
Revista Brasileira de Engenharia Agrícola e Ambiental, 2023 Salinity can have detrimental effects on plant development. To minimize this damage, strategies such as balanced maintenance of plants’ nutritional status have been proposed previously.
Jackson S. Nóbrega +8 more
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On quasi-orthogonal cocycles [PDF]
, 2017 We introduce the notion of quasi-orthogonal cocycle. This is motivated in part by the maximal determinant problem for square {±1}-matrices of size congruent to 2 modulo 4. Quasi-orthogonal cocycles are analogous to the orthogonal cocycles of algebraic
Armario Sampalo, José Andrés +1 more
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Neighbor Balanced Block Designs for Two Factors [PDF]
, 2010 The concept of Neighbor Balanced Block (NBB) designs is defined for the experimental situation where the treatments are combinations of levels of two factors and only one of the factors exhibits a neighbor effect.
Abeynayake, N. R. +2 more
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Optical Code Construction of 2D Spectral/Spatial BIBD Codes for SAC-OCDMA Systems
Applied Sciences, 2021 Optical code division multiple access (OCDMA) shows limitations in terms of the inefficient bandwidth utilization and low spectral density with one-dimensional (1D) codes. To overcome these limitations, a novel design is presented using a two dimensional
Teena Sharma +5 more
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ON THE CONSTRUCTION OF BALANCED INCOMPLETE BLOCK DESIGNS [PDF]
Annals of Eugenics, 1939 The articles published by the Annals of Eugenics (1925–1954) have been made available online as an historical archive intended for scholarly use. The work of eugenicists was often pervaded by prejudice against racial, ethnic and disabled groups. The online publication of this material for scholarly research purposes is not an endorsement of those views
Bose. R. C., Fisher, R. A.
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PBIBDs from weakly divisible nearrings and related codes [PDF]
, 2005 1In [5] the authors are able to give a method for the construction of a family of partially balanced incomplete block designs from a special class of wd-nearrings (wd-designs). In this paper the wd-design incidence matrix and the connected row and column
Anna Benini
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