Results 41 to 50 of about 8,260 (293)

Electron paramagnetic resonance and quantitative color investigations of various vacuum heat treated wood species [PDF]

Magnetic Resonance in Solids, 2015
The effect of the heat treatment duration on the electron paramagnetic resonance signal amplitude of free radicals for various wood species was observed.
E.I. Kondratyeva, K.R. Safiullin, I.G. Motygullin, A.V. Klochkov, M.S. Tagirov, V.V. Kuzmin
doaj  

Maintaining the protective function of mountain forests under climate change by the concept of naturalness in tree species composition

Frontiers in Forests and Global Change, 2023
In Swiss mountain areas, the protective function of forests is the predominant ecosystem service having high cultural and economic significance. It is assumed that natural forests or close-to-natural forests, i.e., forests being in the equilibrium with ...
Daniel Scherrer, Barbara Allgaier Leuch, Christoph Fischer, Monika Frehner, Thomas Wohlgemuth   +4 more
doaj   +1 more source

The impact of urban conditions on different tree species in public green areas in the city of Poznan

Folia Horticulturae, 2015
Parks in urbanised areas fulfil an important function as they create a positive climate in cities and contribute to the good health of their inhabitants.
Krzyżaniak Michał, Świerk Dariusz, Walerzak Miłosz, Urbański Piotr   +3 more
doaj   +1 more source

Are honey bees (apis mellifera L.) native to the British Isles? [PDF]

, 2008
No description ...
Carreck, Norman
core   +1 more source

Ideal Molecular Sieving with a Dense MOF for Helium Upgrading with Highly Diffusion Selective Mixed Matrix Membranes

Advanced Functional Materials, EarlyView.
The separation of Helium gas from natural gas is challenging but highly important. MIL‐116(Ga), a “non‐porous” metal–organic framework is used as a molecular sieve to separate He from CH4. Druse‐like MIL‐116(Ga) particles are integrated into polysulfone mixed matrix membranes.
Ayisha Komal, Laura Calderón‐Rodríguez, Oksana Smirnova, Eren Grossmann, Aparna Binu Varghese, Karen Marlenne Garcia Alvarez, Andreas Schneemann, Thomas Hoyer, Ralf Wyrwa, Felix Helmut Schacher, Alexander Knebel   +10 more
wiley   +1 more source

Erster Nachweis der Laubholz-Mistel (Viscum album L.) für das Stadtgebiet von Osnabrück [PDF]

, 2010
Es wird über einen Erstnachweis der Laubholz-Mistel (ViscumalbumL.) im Stadtgebiet von Osnabrück berichtet. Im Juni 2004 fanden sich mindestens vier Exemplare auf einer Winterlinde (Tilia cordata) im Stadtteil Hellern.A report is given on the first ...
Zucchi, Herbert
core  

Culturally modified trees or wasted timber: Different approaches to marked trees in Poland’s Białowieża Forest [PDF]

, 2019
Studies of past forest use traditions are crucial in both understanding the present state of the oldest European forests, and in guiding decisions on future forest conservation and management. Current management of Poland’s Białowieża Forest (BF), one of
Fedotova, Anastasia, Niechoda, Tomasz, Rotherham, Ian, Samojlik, Tomasz   +3 more
core   +1 more source

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

Advanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao, Christian Weinberger, Jakob Steube, Matthias Bauer, Martin Brehm, Michael Tiemann   +5 more
wiley   +1 more source

North European platyphyllous forests: biodiversity dynamics and climate changes in northwest European Russia.

Silva Fennica, 1996
Distribution, biodiversity and reforestation dynamics of the platyphyllous forests in the Northwest European Russia were investigated. Data assembled from 21 landscape regions (250–350 km each) show special features of small-leaved lime ( Mill., Norway
Chtchoukine, Anton
doaj   +1 more source

Circular‐Polarization‐Sensitive Organic Photodetectors with a Chiral Nanopatterned Electrode Inverse‐Designed by Genetic Algorithm

Advanced Functional Materials, EarlyView.
A chiral photodetector capable of selectively distinguishing left‐ and right‐handed circularly polarized light is experimentally demonstrated. The device, which features a nanopatterned electrode inverse‐designed by a genetic algorithm within a metal–dielectric–metal nanocavity that incorporates a vacuum‐deposited small‐molecule multilayer, exhibits ...
Kyung Ryoul Park, Jewoong Lee, In‐Suk Choi, Changsoon Kim   +3 more
wiley   +1 more source