Zobrazeno 1 - 10
of 10
pro vyhledávání: '"André Klüppel"'
Autor:
Michael Altgen, Muhammad Awais, Daniela Altgen, André Klüppel, Gerald Koch, Mikko Mäkelä, Andrea Olbrich, Lauri Rautkari
Publikováno v:
Materials & Design, Vol 225, Iss , Pp 111481- (2023)
An inhomogeneous chemical distribution can be problematic in many biomaterial applications, including wood impregnation. Since wood is a hierarchically structured material, the chemical distribution must be considered on different length scales. Here
Externí odkaz:
https://doaj.org/article/0dc3ad74e7644f06b588e10609922837
Publikováno v:
Journal of Materials Science. 55:11253-11266
Impregnation modification of wood with melamine formaldehyde resin reduces the adverse effects caused by moisture uptake, but the underlying modes of action are not fully understood. The present study showed that it is crucial to understand the sorpt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::266ddff1295a5e463ab0cd1c931ac03a
https://doi.org/10.1007/s10853-020-04814-0
https://doi.org/10.1007/s10853-020-04814-0
Publikováno v:
Wood Material Science & Engineering. 16:237-245
The objective of this study is to evaluate the effect of wood and panel density on the properties of lightweight strand boards (SB). For this purpose, we compared lightweight SBs made of low-densit...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ab95ba93bf31135f36ee07ed9758ea5
https://doi.org/10.1080/17480272.2019.1705906
https://doi.org/10.1080/17480272.2019.1705906
Autor:
André Klüppel, Carsten Mai
Publikováno v:
European Journal of Wood and Wood Products. 76:1029-1035
This study examines individual and interactive effects of seawater wetting and UV irradiation on the tensile strength of Scots pine (Pinus sylvestris) micro-veneers. In a first experiment, veneers were cyclically wetted with demineralized water or sy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11a8e1d2a596cd3b36de89b17a3ed33e
https://doi.org/10.1007/s00107-017-1268-6
https://doi.org/10.1007/s00107-017-1268-6
Publikováno v:
Organic letters. 21(7)
The synthesis of a diastereomer of lytophilippine A required 22 longest linear steps using known building blocks. Cross-metathesis/asymmetric aldol addition and regioselective esterification/ring-closing metathesis served as efficient combi tools for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7afa588e69a71cf0c8837b54805f4566
https://pubmed.ncbi.nlm.nih.gov/30900455
https://pubmed.ncbi.nlm.nih.gov/30900455
Publikováno v:
Klüppel, A, Cragg, S M, Militz, H & Mai, C 2015, ' Resistance of modified wood to marine borers ', International Biodeterioration & Biodegradation, vol. 104, pp. 8-14 . https://doi.org/10.1016/j.ibiod.2015.05.013
The resistance of differently modified wood to the common shipworm, Teredo navalis, and the wood boring crustacean, Limnoria quadripunctata, was assessed in a field trial and by means of a short term laboratory assay, respectively. Scots pine (Pinus
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c2f84ed35977e3c47a554785ec41bb60
https://doi.org/10.1016/j.ibiod.2015.05.013
https://doi.org/10.1016/j.ibiod.2015.05.013
Publikováno v:
Organic Letters. 16:4062-4065
The uncatalyzed intramolecular carbonyl ene (ICE) reaction of substituted ε,ζ-unsaturated α-keto esters to terpenoid-related building blocks has been studied. We found a beneficial effect of a silyl substituent at the ene segment on the kinetics o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cfc87aaa530b93938c5419b626aa11a5
https://doi.org/10.1021/ol501204m
https://doi.org/10.1021/ol501204m
Autor:
André Klüppel, Heiko Thömen
Publikováno v:
hfsg. 62:215-222
In wood-based composite mats, mass and heat transfer are substantially influenced by their gas permeability. Thus, reliable permeability data are needed if one wants to model and simulate those processes taking place prior, during, and after hot-pres
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6169dc1c995ad032f754e4ed2109b78f
https://doi.org/10.1515/hf.2008.034
https://doi.org/10.1515/hf.2008.034
Autor:
Carsten Mai, André Klüppel
Publikováno v:
Holzforschung. 66
Scots pine micro-veneers were subjected to hydrolysis with sulphuric acid or delignification with acidic sodium chlorite and a combination of both treatments. The tensile strength of untreated and treated veneers was determined at finite span (f-stre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::766d85f03cad69254e6e7368641af3f2
https://doi.org/10.1515/hf.2011.173
https://doi.org/10.1515/hf.2011.173
Autor:
Carsten Mai, André Klüppel
Publikováno v:
Wood Science and Technology. 47(3):643-658
Scots pine (Pinus sylvestris L.) sapwood was impregnated with aqueous solutions of phenol formaldehyde and methylated melamine formaldehyde resins and subsequently cured in an oven. One set of specimens was cured in plastic bags to avoid drying (wet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9096a277c69bfc87fc931cfc0c0e01da