Results 31 to 40 of about 661 (172)

A Robust Method for GPS/BDS Pseudorange Differential Positioning Based on the Helmert Variance Component Estimation

open access: yesJournal of Sensors, Volume 2017, Issue 1, 2017., 2017
The use of global navigation satellite system (GNSS) is entering a new era of joint positioning based on the use of multifrequencies and multimodes. Ensuring the correct weighting of observations from each system and satellite has become a key problem during real‐time positioning. This paper addresses the issue of weights of observations as well as the
Jian Deng   +4 more
wiley   +1 more source

Analysis of Combined Experiments Revisited

open access: yesAgronomy Journal, Volume 107, Issue 2, Page 763-771, March–April 2015., 2015
Agronomic experiments are often replicated over time and space to evaluate how treatments perform across a range of environments. The analysis of experiments conducted for more than one growing season (years) and/or places (locations) is commonly referred to as analysis of combined experiments.
Kenneth J. Moore, Philip M. Dixon
wiley   +1 more source

Analysis of epistasis: A genetic model for triploid endosperm traits

open access: yes浙江大学学报. 农业与生命科学版, 2007
A genetic model for triploid endosperm traits was proposed on the basis of diallel cross system to analyze additive by additive epistasis of direct effect (AA) and maternal effect (AmAm) along with direct additive effect, dominance effect, cytoplasm ...
CHENG Jun-qi   +3 more
doaj   +1 more source

A Strategy for Finding the Optimal Scale of Plant Core Collection Based on Monte Carlo Simulation

open access: yesThe Scientific World Journal, Volume 2014, Issue 1, 2014., 2014
Core collection is an ideal resource for genome‐wide association studies (GWAS). A subcore collection is a subset of a core collection. A strategy was proposed for finding the optimal sampling percentage on plant subcore collection based on Monte Carlo simulation.
Jiancheng Wang   +8 more
wiley   +1 more source

Breeding Potential of Elite Pee Dee Germplasm in Upland Cotton Breeding Programs

open access: yesCrop Science, Volume 53, Issue 3, Page 894-905, May 2013., 2013
ABSTRACT Successful plant breeding programs begin with parental line selection. Effective parental line selection is facilitated when the breeding potential of candidate parental lines is known. Using topcross families involving germplasm from eight U.S.
B. T. Campbell   +4 more
wiley   +1 more source

Criterion for comparing the variance component estimation methods used for adjusting horizontal control networks

open access: yesGeodesy and Cartography, 2012
Determination of which stochastic model taken in hand for this study is suitable under conditions, when comparing stochastic models, used for adjusting horizontal control networks, is the aim of this study.
Erol Yavuz, Orhan Baykal
doaj   +1 more source

Repeatability and Heritability of Behavioural Types in a Social Cichlid

open access: yesInternational Journal of Evolutionary Biology, Volume 2011, Issue 1, 2011., 2011
Aim. The quantitative genetics underlying correlated behavioural traits (‘‘animal personality’’) have hitherto been studied mainly in domesticated animals. Here we report the repeatability (R) and heritability (h2) of behavioural types in the highly social cichlid fish Neolamprologus pulcher. Methods.
Noémie Chervet   +5 more
wiley   +1 more source

Application of Multilevel Models to Morphometric Data. Part 1. Linear Models and Hypothesis Testing

open access: yesAnalytical Cellular Pathology, Volume 25, Issue 4, Page 173-185, 2003., 2003
Morphometric data usually have a hierarchical structure (i.e., cells are nested within patients), which should be taken into consideration in the analysis. In the recent years, special methods of handling hierarchical data, called multilevel models (MM), as well as corresponding software have received considerable development.
O. Tsybrovskyy, A. Berghold
wiley   +1 more source

Sensitivity Analysis for the Decomposition of Mixed Partitioned Multivariate Models into Two Seemingly Unrelated Submodels

open access: yesAustrian Journal of Statistics, 2014
The paper is focused on the decomposition of mixed partitioned multivariate models into two seemingly unrelated submodels in order to obtain more efficient estimators.
Eva Fišerová, Lubomír Kubáček
doaj   +1 more source

Using Covariance Factor in Genetic Parameter Estimation

open access: yes, 2022
© 2022 Ataturk Universitesi. All rights reserved.In this study, it was aimed to determine the efficiency of REML, MINQUE and MIVQUE methods, which are frequently used methods in estimating genetic parameters, in the estimation of variance components when
ELTAS, Ömer   +3 more
core   +1 more source

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