Results 21 to 30 of about 524,381 (270)
Lignin engineering in forest trees [PDF]
Wood is a renewable resource that is mainly composed of lignin and cell wall polysaccharides. The polysaccharide fraction is valuable as it can be converted into pulp and paper, or into fermentable sugars.
Alvarenga Chanoca, Alexandra +2 more
core +1 more source
Energy and Chemicals from Trees [PDF]
A brief overview of the potential of forest biomass to produce energy and chemicals is presented. Recent developments in tree improvement, delignification and enzymatic hydrolysis are discussed in the context of increased potential and utilization of wood.
openaire +2 more sources
Chemical thinning of 'BRS Kampai' peach trees [PDF]
: The objective of this work was to evaluate the effect of thinning with metamitron on the fruit yield and quality of 'BRS Kampai' peach (Prunus persica) trees.
Roseli de Mello Farias +5 more
doaj +2 more sources
Almost All Trees and Chemical Trees Have Equiseparable Mates
.
Vukičević, Damir, Gutman, Ivan
openaire +4 more sources
Priming involves the exposure of plants to a mild stress to increase tolerance to a more intense stress in the future. Chemical priming with brassinosteroids reduces the negative effects of flooding on the physiology and survival of some plant species ...
Melinda H. Yin +3 more
doaj +1 more source
Trees as Bioindicators of Environmental Pollution and Its Impact on Wood Chemical Composition
Trees provide one of the most versatile biomass resources for many applications, namely wood. The chemical composition of wood determines its properties, being of real significance for its further capitalization, and depending on many factors. In nature,
Carmen-Alice Teacă
doaj +1 more source
Mixed-Integer Convex Nonlinear Optimization with Gradient-Boosted Trees Embedded [PDF]
Decision trees usefully represent sparse, high dimensional and noisy data. Having learned a function from this data, we may want to thereafter integrate the function into a larger decision-making problem, e.g., for picking the best chemical process ...
Krennrich, Gerhard +4 more
core +2 more sources
On the Extremal Trees for Some Bond Incident Degree Indices with a Fixed Number of Segments
The Gourava indices and hyper-Gourava indices are introduced by Kulli in 2017. These graph invariants are related to the degree of vertices of a graph G. Let Tn,r be the class of all n−vertex chemical trees with r segments. In this paper, we characterize
Muzamil Hanif +3 more
doaj +1 more source
Classification of Hungarian medieval silver coins using x-ray fluorescent spectroscopy and multivariate data analysis [PDF]
A set of silver coins from the collection of Déri Museum Debrecen (Hungary) was examined by X-ray fluorescent elemental analysis with the aim to assign the coins to different groups with the best possible precision based on the acquired chemical ...
Elek, János +3 more
core +1 more source
Note on the Hyper-Wiener Index [PDF]
The hyper-Wiener index WW of a chemical tree T is defined as the sum of the products n1n2, over all pairs u, u of vertices of T, where n1 and n2 are the number of vertices of T, lying on the two sides of the path which connects u and u.
IVAN GUTMAN +2 more
doaj

