Results 21 to 30 of about 96,632 (252)
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
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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
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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
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Chemical thinning of peach trees
Peach tree thinning is essential to harvest quality fruits and to keep balanced production for several years. Manual thinning of peach trees demands much work force and increases production costs. Chemical thinning may be an alternative solution, but efficiency depends on doses and species.
Roseli De Mello Farias +5 more
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Chemical analysis of fodder tree leaves found in Sunsari district, Nepal
Altogether 55 fodder trees were collected with their local information from Sunsari district, Nepal. Among them, the leaves of 19 fodder trees were analyzed for dry matter, crude protein, ether extract, crude fibre, N-free extract, total ash and mineral
TN Mandal, TP Gautam
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Small-dispersed dust chemical composition on the leaves of apricot trees (Prunus armeniaca) in residential area [PDF]
A study of the small-dispersed dust chemical composition on the leaves of apricot trees (Prunus armeniaca) in the residential area of the Sredneakhtubinsky district of the Volgograd region was coducted.
Glinyanova Irina
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AbstractA method is developed for obtaining the spectra of trees of NMR and chemical interests. The characteristic polynomials of branched trees can be obtained in terms of the characteristic polynomials of unbranched trees and branches by pruning the tree at the joints.
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Almost All Trees and Chemical Trees Have Equiseparable Mates
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Vukičević, Damir, Gutman, Ivan
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To address the current difficult problem of scientifically assessing the health status of date palm trees due to a single parameter for date palm health assessment, an imperfect index system, and low precision.
Yuzhen Wu +4 more
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The \(\sigma\)-irregularity of chemical trees
Naslov z nasl. zaslona.
Kovijanić-Vukićević, Žana +4 more
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