Results 31 to 40 of about 87,832 (311)

REMOÇÃO DE MVC CR DE LAMA DE PVC VIA TORRE STRIPPING

open access: yesRevista Águas Subterrâneas, 2013
A reciclagem surge como uma alternativa de destinação dos resíduos sólidos. Essa alternativa permite o reaproveitamento dos resíduos como matéria-prima, reincorporando-os ao processo produtivo.
EDUARDO JOSÉ DE BARROS SOUTO   +2 more
doaj   +2 more sources

Abies Concolor Seeds and Cones as New Source of Essential Oils—Composition and Biological Activity

open access: yesMolecules, 2017
The chemical composition, including the enantiomeric excess of the main terpenes, of essential oils from seeds and cones of Abies concolor was studied by chromatographic (GC) and spectroscopic methods (mass spectrometry, nuclear magnetic resonance ...
Anna Wajs-Bonikowska   +4 more
doaj   +1 more source

The use of forests in the river Zagrža basin for the conservation of its hydrological and water protective function [PDF]

open access: yesGlasnik Šumarskog Fakulteta: Univerzitet u Beogradu, 2015
The data on forests shown in this paper which are general useful functions determine the main way of managing, because these forests are marked as water protective and especially significant for the water supply of the Vrnjačka Banja area from ...
Letić Ljubomir   +3 more
doaj   +1 more source

Of Firs or Silver Firs

open access: yesBulletin of popular information - Arnold Arboretum, Harvard University., 1929
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

Using Laser Perforation to Enhance Decorative Properties of Siberian Fir (Abies sibirica) Wood

open access: yesЛесной журнал, 2023
This paper presents research into the possibilities of using laser perforation to enhance the decorative properties of Siberian fir (Abies sibirica) wood.
Sergey G. Eliseev   +2 more
doaj   +1 more source

Off-broadside main beam design for frequency invariant beamformers [PDF]

open access: yes, 2008
In a previously proposed design method for frequency invariant beamforming, the design for the case of an off-broadside main beam is not satisfactory.
Stephan Weiss   +3 more
core   +1 more source

3D Large‐Scale Subwavelength‐Resolution Sound Sheet Tomography Based on an Active and Programmable Circular Meta‐Array

open access: yesAdvanced Science, EarlyView.
A programmable 2048‐element circular ultrasound array combined with a compact acoustic lens produces a thin “sound sheet” over a large field of view, and records echoes with wide angular diversity across the ring aperture. Coherence‐enhanced beamforming converts full‐matrix data into high‐contrast tomographic slices, delivering near‐diffraction‐limited
Qiu‐De Zhang   +11 more
wiley   +1 more source

A dendroclimatological analysis of fir (Abies alba Mill.) growth in the Borja mountain area of Bosnia and Herzegovina [PDF]

open access: yesGlasnik Šumarskog Fakulteta: Univerzitet u Beogradu, 2018
This paper presents the results of a dendroclimatological analysis of the growth of fir trees in the Borja mountain area, Bosnia and Herzegovina. The required data were taken in 2 sites, and the sample covered a total of 60 series of radial ...
Jović Goran   +4 more
doaj   +1 more source

Vital rates and their multidecadal trends in the fir-beech old-growth forest of Badínsky prales

open access: yesJournal of Forest Science, 2023
The study aimed to quantify annual mortality and recruitment rates on permanent research plots in the Badínsky prales old-growth forest. The data measured in four stands originate from six censuses, which together cover a 48-year period.
Ladislav Šumichrast   +4 more
doaj   +1 more source

Quantifying Magnetic Anisotropy of Ferroelectric Fe(II) Square‐Pyramidal Systems Using Torque Magnetometry

open access: yesAdvanced Science, EarlyView.
Five‐coordinate, square‐pyramidal Fe(II) complexes adopting polar, non‐centrosymmetric crystal structures exhibit exceptionally large easy‐axis magnetic anisotropy. Ligand‐driven distortions critically control the anisotropy, and the dielectric, Polarization vs Elecric field and piezo response studies confirm intrinsic polarization, positioning these ...
Vijaya Thangaraj   +6 more
wiley   +1 more source

Home - About - Disclaimer - Privacy