Black locust (Robinia pseudoacacia L.) is a non-native tree species that occupies remarkable area in the forests of western Poland. It mainly cultivated for bee-keeping purposes as well its high quality wood. We investigated impact age and diameter on selected structural, physical mechanical attributes wood black grows conditions mesic oligotrophic site. analysed 200 samples originating from 18...

Purpose. This study tested the null hypothesis that different classes of direct restorative dental materials: silorane-based resin, low-shrinkage and conventional (non-flowable and flowable) resin-based composite (RBC) do not differ from each other with regard to polymerization shrinkage, depth of cure or microhardness. Methods. 140 RBC samples were fabricated and tested by one calibrated opera...

Abstract This paper proposes an effective numerical method to predict welding distortion for large welded structures. To distortions, inherent strain-based methods are computationally efficient and widely used in engineering fields. However, there some drawbacks such as the generation of undesirable longitudinal forces use vector-type input variables. Equivalent loads derived through finite ele...

An obvious Bayesian nonparametric generalization of ridge regression assumes that coefficients are exchangeable, from a prior distribution of unknown form, which is given a Dirichlet process prior with a normal base measure. The purpose of this paper is to explore predictive performance of this generalization, which does not seem to have received any detailed attention, despite related applicat...

Modeling a correlation matrix R can be a difficult statistical task due to both the positive definite and the unit diagonal constraints. Because the number of parameters increases quadratically in the dimension, it is often useful to consider a sparse parameterization. We introduce a pair of prior distributions on the set of correlation matrices for longitudinal data through the partial autocor...

Background: Iran, a lowto middle-income country, has experienced considerable socioeconomic changes in 20 century, which their impacts on the adult heights has not been assessed deeply by now. This article aims to quantify the temporal variations of height (with respect to shrinkage of height due to aging) and its deterministic factors in Iranian population born between 1940 and 1984. Methods: ...

The aim of this study is to determine some physical and mechanical properties of Paulownia tomentosa wood grown in Turkey. The samples trees harvested from Kargi in Corum. Physical properties including air-dry density oven-dry density basic density swelling, shrinkage and oven-dry and air-dry thermal conductivity coefficients; mechanical properties including bending strength, modulus of elastic...

Penalized regression methods, such as L1 regularization, are routinely used in high-dimensional applications, and there is a rich literature on optimality properties under sparsity assumptions. In the Bayesian paradigm, sparsity is routinely induced through two-component mixture priors having a probability mass at zero, but such priors encounter daunting computational problems in high dimension...

recent tendencies in concrete technology have been towards to high- performance concrete with a low water-cement ratio. however, high performance concretes have some problems. one of the problems is early-age cracking due to autogenous shrinkage. this study presents the results of an experimental investigation carried out to evaluate the autogenous shrinkage of high-strength concrete. accordin...