Results 21 to 30 of about 5,804,591 (298)

High deuteron and neutron yields from the interaction of a petawatt laser with a cryogenic deuterium jet

open access: yesFrontiers in Physics, 2023
A compact high-flux, short-pulse neutron source would have applications from nuclear astrophysics to cancer therapy. Laser-driven neutron sources can achieve fluxes much higher than spallation and reactor neutron sources by reducing the volume and time ...
X. Jiao   +25 more
doaj   +1 more source

A study of teak wood quality from community forests in Gunungkidul  IV. Mechanical Properties

open access: yesJurnal Ilmu Kehutanan, 2015
Mechanical properties of sawn timber are the most important characteristics in many applications, particularly for structural timber. The previous paper in this series reported on the physical properties of teak trees at different sites (Panggang, Playen,
Sri Nugroho Marsoem   +4 more
doaj   +1 more source

BASIC WOOD DENSITY, FIBER DIMENSIONS, AND WOOD CHEMICAL COMPOSITION OF FOUR Eucalyptus SPECIES PLANTED IN SOUTHERN BRAZIL

open access: yesRevista Árvore, 2023
In the Brazilian planted forest sector, most of the species used are from the genus Eucalyptus. Even though Southern Brazil has a suitable climate for species of the genus Pinus, the planting of frost-resistant Eucalyptus species has been increasing ...
Eraldo Antonio Bonfatti Júnior   +8 more
doaj   +1 more source

Water Flow Evaluation in Eucalyptus and Corymbia Short Logs

open access: yesFloresta e Ambiente, 2018
The aim of this study is to evaluate the free and adsorbed water flow in short logs of Eucalyptus urophylla and Corymbia citriodora clones. 40 cm long, short logs were extracted from the base of the trees. Three trees each of C.
Thiago Monteiro   +4 more
doaj   +1 more source

The wide variation of amazonian stocked hardwoods affecting natural resistance to arboreal termites over time

open access: yesMaderas: Ciencia y Tecnología
After forest suppression in mining areas, deterioration of stocked tropical hardwoods occurs at different rates and levels. Prioritizing logs to avoid wastage is challenging because the wide interspecific variability of wood traits makes natural ...
Ana Kelly de Sousa Silva   +11 more
doaj   +1 more source

Basics of the density functional theory

open access: yesAIMS Materials Science, 2017
The density functional theory (DFT) established itself as a well reputed way to compute the electronic structure in most branches of chemistry and materials science. In the formulation given by Kohn, Hohenberg and Sham in the 1960's, the many-electron wave function is replaced by the electron density, so that the energy is just a functional of the ...
openaire   +2 more sources

Efeito da procedência em algumas propriedades da madeira de Gallesia integrifolia (Spreng.) Harms. Effect of provenance in some wood properties of Gallesia integrifolia (Spreng.) Harms. [PDF]

open access: yesRevista do Instituto Florestal, 2010
A utilização de teste de procedência pode fornecer informações sobreo comportamento silvicultural de populações de uma determinada espécie, também permite a estimativa de parâmetros genéticos de características de interesse econômico, seleção de material
Antonio Carlos Scatena ZANATTO   +6 more
doaj  

Effect of Seed Source on Physical Properties of Scots Pine (a Case Study in Neka, Iran)

open access: yesDrvna Industrija, 2013
This study investigated the seed source effect on the physical properties of exotic Scots pine (Pinus sylvestris). For this purpose, nine clear pine trees grown from the Spanish, Armenian and Serbian (part of former Yugoslavia) seed sources were selected
Mohammad Farsi   +3 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

Estimating malaria parasite density: assumed white blood cell count of 10,000/μl of blood is appropriate measure in Central Ghana. [PDF]

open access: yes, 2012
BACKGROUND: White blood cells count (WBCc) is a bedrock in the estimation of malaria parasite density in malaria field trials, interventions and patient management.
Mahama, Emmanuel   +29 more
core   +1 more source

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