Results 21 to 30 of about 72,214 (293)

Wood discoloration patterns depending on the light source

open access: yesHeritage Science, 2022
The wood photodegradation, including discolouration caused by exposure to UV and solar radiation, has been intensively studied, while the effect of artificial lighting on wood has been little investigated.
Dace Cirule   +3 more
doaj   +1 more source

Effect of the Propionylation Method on the Deformability under Thermal Pressure of Block-Shaped Wood

open access: yesMolecules, 2021
Converting wood waste into thermoplastic materials is an attractive means of increasing its utilization because complex three-dimensional molded products can easily be obtained by press molding wood with thermoplasticity.
Mitsuru Abe   +3 more
doaj   +1 more source

Detailed Modeling of Kraft Pulping Chemistry. Delignification [PDF]

open access: yes, 2020
This work introduces a phenomena-based model for delignification in the kraft pulping process. The solubilization of lignin is described as a set of chemical reactions representing the entire chemistry of lignin degradation as well as dissolution of the ...
Kuitunen, S,   +14 more
core   +1 more source

Characteristics of intracellular peptidase and proteinase activities from the mycelium of a cord-forming wood decay fungus Serpula lacrymans [PDF]

open access: yes, 2001
Serpula lacrymans is a basidiomycete cord-forming wood decay fungus which reallocates nitrogen within an extensive perennial mycelial system in response to spatial discontinuities in external nutrient supply.
Burton, Kerry S.   +2 more
core   +1 more source

Optimization of choline chloride-glycerol based natural deep eutectic solvent for extraction bioactive substances from Cinnamomum burmannii barks and Caesalpinia sappan heartwoods

open access: yesHeliyon, 2019
Indonesian cassia (Cinnamomum burmannii Blume) is commonly used as a condiment. It reportedly contains a number of major phytochemical constituents such as trans-cinnamaldehyde and coumarin. Sappan wood (Caesalpinia sappan) is a native plant of Southeast
Aditya Sindu Sakti   +2 more
doaj   +1 more source

Analytical and Chemometric Characterization of Fino and Amontillado Sherries during Aging in Criaderas y Solera System

open access: yesMolecules, 2022
Fino and Amontillado are Sherry wines, produced in Marco de Jerez area (southern Spain), and aged in Criaderas y Solera system. Fino Sherry wine follows a biological aging process, under a veil of flor yeasts, while Amontillado Sherry wine shares the ...
Manuel J. Valcárcel-Muñoz   +4 more
doaj   +1 more source

Ecotoxicity and fungal deterioration of recycled polypropylene/wood composites: Effect of wood content and coupling [PDF]

open access: yes, 2013
Polypropylene (PP)/wood composites were produced by homogenization in a twin-screw extruder and injection molding of tensile bars. Their mechanical properties were determined before and after exposure to biological treatment, and the effect of the ...
Vargas-García, María del Carmen   +7 more
core   +1 more source

Combining Near-Infrared (NIR) Analysis and Modelling as a Fast and Reliable Method to Determine the Authenticity of Agarwood (Aquilaria spp.)

open access: yesAnalytica, 2023
The resinous wood produced by the Aquilaria and Gyrinops species—agarwood—is both rare and highly valuable. It is used in products from perfumes to medicines and has an estimated global market value of $32 billion.
Esther K. Grosskopf   +2 more
doaj   +1 more source

How Not to Discover a New Reagent. The Evolution and Chemistry of Woollins' Reagent [PDF]

open access: yes, 2014
The pathways in research can be complex. This review provides a personal account of the winding scientific and funding road that led to Woollins' reagent.
Woollins, J. Derek
core   +1 more source

Synthesis and Characterization of Novel Polyurethanes Based on Tall Oil

open access: yesMedžiagotyra, 2013
Amide and ester type polyols were synthesized from different kinds of tall oil and two types of ethanolamine (diethanolamine and triethanolamine). Poly(urethane amides) and polyester urethanes based on the synthesized polyols were prepared. The influence
Vladimir YAKUSHIN   +5 more
doaj   +1 more source

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