Tim Koddenberg
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View article: Anatomical Barriers to Impregnation in Hybrid Poplar: A Comparative Study of Pit Characteristics in Normal and Tension Wood
Anatomical Barriers to Impregnation in Hybrid Poplar: A Comparative Study of Pit Characteristics in Normal and Tension Wood Open
Fast-growing hardwoods like poplar often lack natural durability in outdoor use and require homogeneous impregnation with protective agents, though achieving homogeneity remains a known challenge. Various anatomical structures influence fl…
View article: Anatomical Barriers to Impregnation in Hybrid Poplar: A Comparative Study of Pit Characteristics in Normal and Tension Wood
Anatomical Barriers to Impregnation in Hybrid Poplar: A Comparative Study of Pit Characteristics in Normal and Tension Wood Open
Fast-growing hardwoods like poplar often lack natural durability in outdoor use and require homogeneous impregnation with protective agents, though achieving homogeneity remains a known challenge. Various anatomical structures influence fl…
View article: Anatomical Barriers to Impregnation in Hybrid Poplar: A Comparative Study of Pit Characteristics in Normal and Tension Wood
Anatomical Barriers to Impregnation in Hybrid Poplar: A Comparative Study of Pit Characteristics in Normal and Tension Wood Open
Fast-growing hardwoods like poplar often lack natural durability in outdoor use and require homogeneous impregnation with protective agents, though achieving homo-geneity remains a known challenge. Various anatomical structures influence f…
View article: Macroscopic and microscopic investigations of the inhomogeneous distribution of impregnating agents in poplar wood ( <i>Populus × canadensis</i> Moench)
Macroscopic and microscopic investigations of the inhomogeneous distribution of impregnating agents in poplar wood ( <i>Populus × canadensis</i> Moench) Open
German Research Foundation 10.13039/501100001659
View article: Surface quantification of the wood-abrasive shell regions of the shipworm Teredo navalis indicates functional differentiation
Surface quantification of the wood-abrasive shell regions of the shipworm Teredo navalis indicates functional differentiation Open
Wood-boring shipworms are notorious for their destructive activity, using specialized calcareous valves with denticulate surface ornamentations to bore into wood. While the general morphology of shipworm shells has been well-studied, detai…
View article: How to make teaching of wood anatomy more engaging with 3D data
How to make teaching of wood anatomy more engaging with 3D data Open
Wood is a highly heterogeneous material with a variable and three-dimensional (3D) anatomy at the microscopic level. Research and application of wood depend on well-educated individuals, who understand the wood anatomy. The teaching and le…
View article: Origin-specific differences in the durability of black locust (Robinia pseudoacacia) wood against wood-destroying basidiomycetes
Origin-specific differences in the durability of black locust (Robinia pseudoacacia) wood against wood-destroying basidiomycetes Open
Global climate change is accompanied by a change in tree composition in many regions. In Europe, the distribution areas of many species are expanding towards the north so that, among others, black locust ( Robinia pseudoacacia ), which is …
View article: The wooden artifacts from Schöningen’s Spear Horizon and their place in human evolution
The wooden artifacts from Schöningen’s Spear Horizon and their place in human evolution Open
Ethnographic records show that wooden tools played a pivotal role in the daily lives of hunter-gatherers including food procurement tools used in hunting (e.g., spears, throwing sticks) and gathering (e.g. digging sticks, bark peelers), as…
View article: A double-pointed wooden throwing stick from Schöningen, Germany: Results and new insights from a multianalytical study
A double-pointed wooden throwing stick from Schöningen, Germany: Results and new insights from a multianalytical study Open
The site of Schöningen (Germany), dated to ca. 300,000 years ago, yielded the earliest large-scale record of humanly-made wooden tools. These include wooden spears and shorter double-pointed sticks, discovered in association with herbivore…
View article: Low-carbon magnesium potassium phosphate cement (MKPC) binder comprising caustic calcined magnesia and potassium hydroxide activated biochar from softwood technical lignin
Low-carbon magnesium potassium phosphate cement (MKPC) binder comprising caustic calcined magnesia and potassium hydroxide activated biochar from softwood technical lignin Open
Biochar augmentation in cementitious materials is attractive for enhancing the products' mechanical properties and improving sustainability. Softwood technical lignin biochar (5 wt-%) was used to augment MKPC as a replacement material, wit…
View article: Non-Destructive Evaluation of the Cutting Surface of Hardwood Finger Joints
Non-Destructive Evaluation of the Cutting Surface of Hardwood Finger Joints Open
In this study, the surface parameters wettability, roughness, and adhesive penetration, which are important for wood bonding, were investigated and evaluated utilizing non-destructive methods after different mechanical processing. For this…
View article: Wood technology: a Glossary and Code for analysis of archaeological wood from stone tool cultures
Wood technology: a Glossary and Code for analysis of archaeological wood from stone tool cultures Open
The analysis of wood technologies created by stone tool-using cultures remains underdeveloped relative to the study of lithic and bone technologies. In recent years archaeologists have begun to approach wood assemblages systematically, dev…
View article: A 51,000-year-old engraved bone reveals Neanderthals’ capacity for symbolic behaviour
A 51,000-year-old engraved bone reveals Neanderthals’ capacity for symbolic behaviour Open
While there is substantial evidence for art and symbolic behaviour in early Homo sapiens across Africa and Eurasia, similar evidence connected to Neanderthals is sparse and often contested in scientific debates. Each new discovery is thus …
View article: Three-dimensional imaging of xylem at cell wall level through near field nano holotomography
Three-dimensional imaging of xylem at cell wall level through near field nano holotomography Open
Detailed imaging of the three-dimensionally complex architecture of xylary plants is important for studying biological and mechanical functions of woody plants. Apart from common two-dimensional microscopy, X-ray micro-computed tomography …
View article: Resistance of Injection Molded Wood-Polypropylene Composites against Basidiomycetes According to EN 15534-1: New Insights on the Test Procedure, Structural Alterations, and Impact of Wood Source
Resistance of Injection Molded Wood-Polypropylene Composites against Basidiomycetes According to EN 15534-1: New Insights on the Test Procedure, Structural Alterations, and Impact of Wood Source Open
In this study, we investigated injection molded wood-polypropylene composites based on various wood sources and their decay resistance against white rot (Trametes versicolor) and brown rot (Coniophora puteana) in a laboratory test accordin…
View article: Anatomical characteristics of thermally modified<i>Eucalyptus nitens</i>wood in an open and closed reactor system
Anatomical characteristics of thermally modified<i>Eucalyptus nitens</i>wood in an open and closed reactor system Open
Eucalyptus nitens specimens were thermally modified under open and closed systems. The anatomical characteristics from selected modifications that presented similar mass losses were investigated by analyzing images taken from scanning elec…
View article: Utilization of Recycled Material Sources for Wood-Polypropylene Composites: Effect on Internal Composite Structure, Particle Characteristics and Physico-Mechanical Properties
Utilization of Recycled Material Sources for Wood-Polypropylene Composites: Effect on Internal Composite Structure, Particle Characteristics and Physico-Mechanical Properties Open
In this study, various wood material sources were used for the manufacture of wood-polymer composites (WPC). The materials were categorised as virgin wood particles (VWP), reprocessed WPC particles (RWP) and recycled thermoset composite pa…