Results 31 to 40 of about 77,953 (299)

Control efficacy of stump treatment and influence of stump height on natural spore infection by Heterobasidion spp. of precommercial thinning stumps of Norway spruce and birch

Silva Fennica, 2012
An alternative precommercial thinning technique results in trees being cut higher up the stem compared to the normal method using a brush saw. The aims of this study were to investigate if primary infection of Heterobasidion spp.
Gunulf, Anna, Mc Carthy, Rebecka, Rönnberg, Jonas   +2 more
doaj   +1 more source

Resistance Rapid Heating of Aluminum Coatings in an Extreme High Vacuum–Adequate Atmosphere for Hot Stamping

Advanced Engineering Materials, EarlyView.
The subject of this work is the development of a corrosion‐protective coating on steel sheets for form hardening. Rapid heating in an extreme high vacuum (XHV)‐adequate atmosphere is a useful method to prevent oxidation during alloying of 22MnB5 and aluminum to obtain a metallurgical bonding.
Lorenz Albracht, Alexander Schnettger, Ulrich Holländer, Sven Hübner, Bernd‐Arno Behrens, Hans Jürgen Maier   +5 more
wiley   +1 more source

Forces required to vertically uproot tree stumps

Silva Fennica, 2010
Stumpwood attracts renewed interest due to increased use of forest biomass for bioenergy. In Nordic countries stumps are generally uprooted with crawler excavators, which have strong cranes (ca. 400 kNm gross lift torque), but are not designed for moving
Lindroos, Ola, Henningsson, Marina, Athanassiadis, Dimitris, Nordfjell, Tomas   +3 more
doaj   +1 more source

Ecology of the lichen Cladonia botrytes in Sweden [PDF]

, 2013
Rapid changes in the forest structure due to logging strongly affect lichen vegetation and can exceed tolerance of many organisms while being beneficial to others.
Bogomazova, Kristine
core   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Distance-dependent indices to assess deadwood diversity in forest ecosystems: an application in the Italian Alps

Forest Systems
Aim of study: To evaluate the effectiveness of distance-dependent indices in characterizing deadwood diversity at stand level. Area of study: Four forest types in the Italian Alps (Trentino Alto Adige region): Norway spruce, mixed Silver fir–Norway ...
Sofia Baldessari, Alessandro Paletto, Stefano Morelli   +2 more
doaj   +1 more source

Wood-inhabiting beetles in low stumps, high stumps and logs on boreal clear-cuts: implications for dead wood management.

PLoS ONE, 2015
The increasing demand for biofuels from logging residues require serious attention on the importance of dead wood substrates on clear-cuts for the many forestry-intolerant saproxylic (wood-inhabiting) species.
Jon Andersson, Joakim Hjältén, Mats Dynesius   +2 more
doaj   +1 more source

Coppicing and productivity of two indigenous tree species under different forest management regimes in Tanzania

Trees, Forests and People, 2021
There is a renewed interest to improve sustainable wood production from African savanna but our knowledge on management of individual tree species to optimize harvesting return times is limited.
Vincent G. Vyamana, Shabani A.O. Chamshama, Samora M. Andrew   +2 more
doaj   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Stump and Site Factor Analysis After Sanitary Logging of Bark Beetle-Infested Forests

South-East European Forestry
Coniferous forests cover 41% of Bosnia and Herzegovina, with Norway spruce (Picea abies) being an ecologically and economically important species. Bark beetles, especially the European spruce bark beetle (Ips typographus), pose a major threat, often ...
Naida Gadžo, Osman Mujezinović, Damir Prljača, Sabina Mahmutović, Milan Pernek, Kenan Zahirović, Sead Ivojević, Mirza Dautbašić   +7 more
doaj   +1 more source