Results 121 to 130 of about 9,408 (243)

Scaling Integral Projection Models for Analyzing Size Demography

open access: yes, 2013
Historically, matrix projection models (MPMs) have been employed to study population dynamics with regard to size, age or structure. To work with continuous traits, in the past decade, integral projection models (IPMs) have been proposed.
Clark, James S.   +2 more
core   +1 more source

Vpliv temperature sušenja na lastnosti lesnih površin [PDF]

open access: yes, 2017
This article deals with modifications of wood surface properties induced by different drying temperatures. The aim of the study was chemical and physical characterization of a wood surface concerning low and high temperature exposure.
Šernek, Milan
core   +1 more source

Tg AS AN INDEX OF CONVERSION IN PMDI-IMPREGNATED WOOD

open access: yesBioResources, 2007
It is well established that the glass transition temperature (Tg) is a sensitive measure of cure in neat thermosets. As cure advances, network mobility declines and the Tg rises in a systematic fashion.
Nanjian Sun   +2 more
doaj  

A study of some growth factors affecting asymetical growth in trees [PDF]

open access: yes, 1942
Observations on stumps left by lumbering operations show that in many cases the organic center of the stump is far removed from the geometric center. This led into an investigation of factors causing asymmetrical growth of trees.
Harmon, Matthew
core   +1 more source

Dieback in the Native Shrub, Lindera benzoin: A Subtle Effect of Forest Fragmentation [PDF]

open access: yes, 1996
Author Institution: Department of Geography, Miami UniversityI report on a documented dieback in spicebush, Lindera benzoin, after the winter of 1993-1994 in two mature deciduous forest stands in southwestern Ohio.
Medley, Kimberly E.
core  

Relationship Between Wood Specific Gravity and Average Annual Ring Width of 15 Korean Wood Species

open access: yesBioResources
The correlation between specific gravity and average annual ring width was studied for 15 major Korean tree species. In coniferous trees, species with narrower rings exhibited higher specific gravity, with strong correlations observed in Pinus densiflora
Kug-Bo Shim   +4 more
doaj  

Intra-ring compression strength of low density hardwoods

open access: yesMaderas: Ciencia y Tecnología, 2014
Engineered wood composites are being crafted with increasingly smaller and smaller components, yet a search of the literature indicates a lack of intra-ring mechanical property data for almost all commercial wood types, particularly the underutilized low
Audrey Zink-Sharp, Carlile Price
doaj  

Schatting van de effectiviteit van de belangrijkste soorten om de concentraties van fijnstof, stikstofdioxiden en ozon, en enkele groeikenmerken [PDF]

open access: yes
Bij de bestrijding van ziektes en plagen heb je altijd te maken met ambivalentie: Ga je voor een bestrijdingswijze die wetenschappelijk gezien voor 100 procent bewezen is, of kies je een aanpak die gebaseerd is op leren in de praktijk?
Hiemstra, J.A., Hoffman, M.H.A.
core   +1 more source

Home - About - Disclaimer - Privacy