Results 11 to 20 of about 19,357 (240)

Thermo-Chemical Conversion of Microwave Selectively Pre-Treated Biomass Blends

open access: yesEnergies, 2022
Possibilities of more efficient use of regional lignocellulosic resources (wood, wheat straw, peat) of different origin for an environmentally friendly energy production using selectively MW pre-treated blends of commercial wood or wheat straw pellets ...
Linards Goldšteins   +4 more
doaj   +1 more source

Softwood Anatomy: A Review

open access: yesForests, 2023
Although conifers have very homogeneous wood anatomical structure, some of their features allow differentiation of genera or groups of genera. Softwood anatomy is reviewed and the authors have added contributions, grouping features in five blocks (axial tracheids, axial parenchyma, rays, resin canals and mineral inclusions), with special attention to ...
García Esteban, Luis   +5 more
openaire   +2 more sources

Overcoming extended lag phase on optically pure lactic acid production from pretreated softwood solids

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
Optically pure lactic acid (LA) is needed in PLA (poly-lactic acid) production to build a crystalline structure with a higher melting point of the biopolymer than that of the racemic mixture.
Joana Campos   +4 more
doaj   +1 more source

Full Scale Evaluation of GFRP Confined Softwood after Long-Term Exposure to High Humidity Environment [PDF]

open access: yes, 2023
Plantation softwood timber poles are associated with low natural durability, and it is also not clear what the effects of the high humidity environment on the long-term performance of composite action integrity of such a system.
Ahmed D. Almutairi   +11 more
core   +1 more source

Mechanical properties of the most common European woods: a literature review

open access: yesFracture and Structural Integrity, 2020
Wood is an orthotropic material used since ancient time. A literature research about the mechanical properties of density, fracture toughness, modulus of elasticity, and Poisson s ratio has been done to have a broader view on the subject.
Beatrice Bartolucci   +5 more
doaj   +1 more source

Preliminary Exploration of the Red Pigment from Scytalidium cuboideum as a Cellulosic Pulp Colorant

open access: yesChallenges, 2022
Pollution from the international dye industry continues to be a global problem. Biotechnology offers new options, including a closer look at select wood decay fungi to replace inorganic dyes.
Derek W. Stone   +3 more
doaj   +1 more source

Transformative Masked Ortho-Quinone Chemistry: From Direct Guaiacol Activation to Lignin-Based Adhesives. [PDF]

open access: yesAngew Chem Int Ed Engl
Renewable guaiacols are rapidly oxidized by phenyliodine(III)diacetate to masked ortho‐quinones, giving a new class of monomers that undergo selective Michael‐type polyaddition with multithiols to from thiol‐guaiacol connectivity‐bearing polymers. The activation applies to discrete monomers and directly to lignin, enabling two‐component adhesives that ...
Hoch DP   +7 more
europepmc   +2 more sources

Micro- and Nano-Scales Three-Dimensional Characterisation of Softwood

open access: yesJournal of Imaging, 2021
Understanding the mechanical response of cellular biological materials to environmental stimuli is of fundamental importance from an engineering perspective in composites.
Alessandra Patera   +2 more
doaj   +1 more source

Effect of different moisture contents on the thermal properties of wood [PDF]

open access: yesJournal on Processing and Energy in Agriculture, 2019
Moisture content is one of the most important properties of wood. The primary purpose of this paper is to examine the dependence between thermal properties and different moisture contents of softwood, hardwood and medium hardwood samples with dimensions ...
Kotoulek Petr   +6 more
doaj   +1 more source

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

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