Results 11 to 20 of about 45,691 (235)

A Preparation Method of Softwood Lignin Derivatives: US9347177B2 Patent Evaluation

open access: yesEnvironmental Sciences Proceedings, 2022
This study, in the form of a patent evaluation, which is a technique for studying the information present within and attached to patents, describes the state of the art by introducing what has been patented in relation to softwood lignin derivatives ...
Chaymaa Hachimi Alaoui, Ahmed Fatimi
doaj   +1 more source

PROPAGATION OF SELECTED CLEMATIS L. CULTIVARS BY SOFTWOOD CUTTINGS

open access: yesAgricultura, 2009
The goal of the experiments carried out was to compare the rooting ability of two types of softwood cuttings. Nodal softwood cuttings with two leaves were used and bud cuttings with one leaf.
M. Raček, B. Kertász
doaj   +1 more source

Effect of Cultivars and Season on Grafting Success in Sapota under Paschim Midnapur Conditions of West Bengal

open access: yesJournal of Horticultural Sciences, 2010
Two sets of experiments were carried out during 2007-08 to assess incompatibility of sapota cultivars to softwood grafting, and to find out the best time for softwood grafting, in a private orchard at Jhargram of Paschim Midnapore, West Bengal ...
S N Ghosh, B Bera, s Roy, B C Banik
doaj   +1 more source

Biomass Carbon and Nitrogen Content of Softwood Broadleaves in Southwestern Serbia

open access: yesHortScience, 2022
To select softwood broadleaves for biomass cropping, a study of the carbon and nitrogen content of the bark and wood of six softwood broadleaves in southwestern Serbia was conducted. Compared with white willow, european aspen, common alder, black poplar,
Sabahudin Hadrović   +6 more
doaj   +1 more source

The Effect of Plant Source on the Properties of Lignin-Based Polyurethanes

open access: yesFrontiers in Energy Research, 2018
This work increases our understanding of the effect of plant source on the mechanical and morphological properties of lignin-based polyurethanes (PUs).
Jason M. Lang   +3 more
doaj   +1 more source

Molecular architecture of softwood revealed by solid-state NMR [PDF]

open access: yes, 2019
Economically important softwood from conifers is mainly composed of the polysaccharides cellulose, galactoglucomannan and xylan, and the phenolic polymer, lignin.
Brown, Steven P.   +7 more
core   +1 more source

The Economics of Spruce Budworm Outbreaks in the Lake States: An Overview [PDF]

open access: yes, 2017
Economic effects of spruce budworm outbreaks in the Lake States were examined. The recent outbreak caused spruce and fir mortality on 420 thousand ha (I.OS million acres) of commercial forest land in the Lake States.
Gregory, G. Robinson   +3 more
core   +2 more sources

A Mechanochemical Kolbe–Schmitt Reaction: Catechol Carboxylation Provides Building Blocks for Renewable Plasticizers

open access: yesAngewandte Chemie, EarlyView.
A mechanochemical Kolbe–Schmitt reaction of disodium catecholate enables the synthesis of mono‐ and dicarboxylated catechols at low temperature and CO2 pressure. Directly derivatizing the resulting carboxylic acid and phenolic moieties in the obtained mixture provides plasticizer blends with efficiencies competitive to commercial benchmarks.
Dries De Vos   +9 more
wiley   +2 more sources

Size-Segregated Particulate Matter from Gasification of Bulgarian Agro-Forest Biomass Residue

open access: yesEnergies, 2021
The main purpose of the present work was to evaluate the efficiency of the gasification process of three different types of agro-forest biomass residue (rapeseed, softwood, and sunflower husks) along with the characterization of size-segregated ...
Ricardo Ferreira   +6 more
doaj   +1 more source

A modified spherical variogram model with constrained optimization for spatial volume estimation

open access: yesAIMS Mathematics
In this study, we proposed a modified spherical variogram model aimed at improving the accuracy of spatial modeling in volume estimation. The model enhances the flexibility of the traditional spherical variogram structure by incorporating additional ...
Johannah Jamalul Kiram   +5 more
doaj   +1 more source

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