Results 81 to 90 of about 265,624 (295)
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2004 The work was focused on problematics of annual-rings width according to position within the tree stem. Annual-ring widths, ratio of late wood and early wood by spruce with compression wood were investigated.
Vladimír Gryc, Jiří Holan
doaj +1 more source
Tree method for quantum vortex dynamics
, 2011 We present a numerical method to compute the evolution of vortex filaments in superfluid helium. The method is based on a tree algorithm which considerably speeds up the calculation of Biot-Savart integrals.
A. W. Baggaley +64 more
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Advanced Engineering Materials, EarlyView.This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal +2 more
wiley +1 more source
BioResources, 2014 Ring width represents the total width of cells in a growing season. Relatively few studies have identified which of the parameters, cell number, size, or wall thickness is the greater contributor to variations in ring width.
Jinmei Xu +3 more
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Simulations of Weighted Tree Automata
, 2010 Simulations of weighted tree automata (wta) are considered. It is shown how such simulations can be decomposed into simpler functional and dual functional simulations also called forward and backward simulations. In addition, it is shown in several cases
A. Alexandrakis +22 more
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Advanced Engineering Materials, EarlyView.A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm +3 more
wiley +1 more source
Analiza dendroecologică a regimului perturbărilor în pădurile din nordul Carpaţilor Orientali [Dendroecological analysis of disturbance regime in forests form the North of Eastern Carpathian] [PDF]
Bucovina Forestieră, 2003 The present structure of natural forest ecosystems from the North of Eastern Carpathian, his heterogeneity, is the results of the historic disturbances.
Popa I
doaj
Report on the results of the tree-rings meta-analysis [PDF]
, 2012 This manuscript summarises the work done during the first 6 months of the Medit Project, dealing in particular with the tree-rings database developed and analysed within component C1 (“Literature Review and Metadata Collection”).
Φύλλας, Νικόλαος-Μ
core
Numerical Modeling of Tank Cars Carrying Hazardous Materials With and Without Composite Metal Foam
Advanced Engineering Materials, EarlyView.Large‐scale puncture models consisting of hazardous materials (HAZMATs) tank car with protective steel–steel composite metal foam (S–S CMF) are solved numerically. Tank car plate with added 10.91–13.33 mm thick S–S CMF layer does not puncture. Protective S–S CMF absorbs impact energy, reduces plate deformation, and prevents shear bands formation ...
Aman Kaushik, Afsaneh Rabiei
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Advanced Engineering Materials, EarlyView.Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan +5 more
wiley +1 more source