Results 11 to 20 of about 4,373,693 (236)

Prediction of ash deposition for biomass combustion and coal/biomass co-combustion [PDF]

open access: yes, 2012
In this thesis, a model that couples a reduced alkali kinetic mechanism for alkali sulphate formation during biomass combustion with an ash deposition model using computational fluid dynamics (CFD) techniques has been presented.
Garba, Mohammed Umar
core   +6 more sources

Ash dieback and contributing factors of forest weakening in provenance tests in the Sumy region

open access: yesCentral European Forestry Journal, 2021
The aim of this study was to evaluate the health condition of Fraxinus excelsior L. in provenance tests, with special focus on ash dieback (ADB), but taking into account also other causes of its decline.
Meshkova Valentyna   +2 more
doaj   +1 more source

Young children's perspectives of time: New directions for co‐constructing understandings of quality in ECEC

open access: yesBritish Educational Research Journal, EarlyView., 2023
Abstract Children's relationship with time in preschools is an under‐researched area. Young children rarely know how to measure time using a clock, but their experiences of time may contribute to understanding children's well‐being and debates about quality in preschools.
Kristín Dýrfjörð   +3 more
wiley   +1 more source

The radial increment of European ash (Fraxinus excelsior L.) under climate change, Ukraine

open access: yesJournal of Forest Science, 2020
The aim of the study was to compare the response of the radial increment of European ash (Fraxinus excelsior L.) in the Western and Eastern forest steppe of Ukraine to climate change. The growth-climate relationships were estimated for 1961-1987 and 1988-
Iryna Koval, Nadiya Maksymenko
doaj   +1 more source

Effects of varying doses of Frisol on European ash (Fraxinus excelsior L.) planted on spoil banks

open access: yesJournal of Forest Science, 2007
Frisol forte (FR F) and Frisol active (FR A) are slow-acting organic fertilisers recommended for reclamation and revitalisation of undeveloped soils and degraded areas.
P. Bulíř
doaj   +1 more source

Impact of soil conditioners on the growth of European ash (Fraxinus excelsiorL.) on dumps

open access: yesJournal of Forest Science, 2005
The effects of soil conditioners TerraCottem, Frisol, Bio-algeen and fertilisers Silvamix Forte and Cererit on the survival rate and growth of European ash seedlings until the stage called established plantation were observed on two experimental plots ...
P. Bulíř
doaj   +1 more source

Mycobiome of Fraxinus excelsior With Different Phenotypic Susceptibility to Ash Dieback

open access: yesFrontiers in Forests and Global Change, 2021
For the last two decades, large-scale population decline of European ash (Fraxinus excelsior) has occurred in Europe because of the introduction of the alien fungal pathogen, Hymenoscyphus fraxineus, from East Asia.
Marta Agostinelli   +3 more
doaj   +1 more source

Woody Plants Affected by Ungulates in Winter Period, Impacts and Bark Renewal

open access: yesEkológia (Bratislava), 2015
Due to biotope fragmentation and changes in landscape structure, opportunities for forest animals to migrate and obtain food are diminishing, especially during extreme winter conditions. The main objective of this research was an assessment of ungulates,
Nevřelová Marta, Ružičková Jana
doaj   +1 more source

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