Results 41 to 50 of about 8,199 (276)

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

open access: yesFolia 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   +3 more
doaj   +1 more source

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

open access: yesAdvanced 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   +10 more
wiley   +1 more source

The Influence of Annealing on the Sb Layer in the Synthesis of [001]‐Oriented Sb2Se3 Film for Photoelectrochemical Hydrogen Gas Generation

open access: yesAdvanced Functional Materials, EarlyView.
[001]‐oriented Sb2Se3 film with improved crystallinity and adjusted composition is achieved via a new thermal treatment approach consisting of preliminary annealing of the Sb layer before its selenization. The findings of this work demonstrate enhanced charge carriers' transportation, a stable performance, and an improvement of H2 generation from ...
Magno B. Costa   +7 more
wiley   +1 more source

The role of the water regime in a reclaimed limestone quarry

open access: yesJournal of Forest Science
This study focused on the hydrophysical characteristics of an abandoned limestone quarry in Czechia. Six sites were examined; two sites were undergoing natural succession (the Quarry Wall and Reed Canary Grass plots, which had undeveloped arboreal layers)
Marcela Burnog, Aleš Kučera
doaj   +1 more source

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

open access: yesSilva 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

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

open access: yesAdvanced 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   +5 more
wiley   +1 more source

WHICH ARE THE MAIN MEDICINAL PLANTS THAT COULD BE HARVESTED FROM EASTERN ROMANIA? [PDF]

open access: yesScientific Papers Series : Management, Economic Engineering in Agriculture and Rural Development, 2018
Worldwide, medicinal and aromatic plants play an important role for humanity. Thousands of medicinal plants are used across the world. Almost 300 medicinal plants are known and used in Romania.
Diana VASILE   +2 more
doaj  

Drzewa – pomniki przyrody jako element krajobrazu kulturowego

open access: yesStudia Ecologiae et Bioethicae, 2014
The history of the protection of the special qualities of trees is almost as old as humanity itself. !e protection of trees was mainly associated with a kind of sacrum, which surrounded old and large trees.
Agnieszka Affek-Starczewska   +3 more
doaj   +1 more source

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

open access: yes, 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
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