Results 71 to 80 of about 55,145 (275)

Synthesis, Chemistry and Applications of 5-Hydroxymethyl-furfural And Its Derivatives [PDF]

open access: yes, 2001
The prospect of exciting research activity in the chemistry of furfural derived compounds such as 5-hydroxymethylfurfural (HMF), 2,5-furandicarbaldehyde and 2,5-furan-dicarboxylic acid prompted the writing of this article.
Lewkowski, Jarosław
core   +1 more source

Thermal Stabilization of Chitosan Yarn for Carbon Fiber Production

open access: yesJournal of Applied Polymer Science, EarlyView.
This study explores chitosan, a biopolymer derived from chitin, as a renewable precursor for carbon fiber production. The authors demonstrate that chitosan fibers can be successfully stabilized under controlled thermal conditions in air and nitrogen.
Irina Kuznik   +4 more
wiley   +1 more source

Solvent‐Driven Pore Engineering in Coffee‐Derived Activated Hydrochar: Implications for Post‐Combustion CO2 Capture

open access: yesCarbon Energy, EarlyView.
Solvent washing of coffee‐ground hydrochars produces activated carbons with tunable pore sizes while maintaining surface area. Removing non‐polar contaminants enhances microporosity, increasing CO2 uptake by 40%. Moderate pore sizes (9–12 Å) yield optimal CO2:N2 selectivity, whereas smaller pores reduce selectivity due to stronger interactions between ...
Muhammad Irfan Maulana Kusdhany   +4 more
wiley   +1 more source

Mid‐Infrared Spectroscopy and Machine Learning for Chlorogenic Acid Quantification in Coffee

open access: yesChemie Ingenieur Technik, EarlyView.
Chlorogenic acid (CGA) concentration in coffee was predicted using mid‐infrared (MIR) spectroscopy and a machine learning approach. Forty‐four roasting stages (140–220 °C) plus a green coffee control were analyzed. A multilayer perceptron regressor, trained on preprocessed MIR data, outperformed traditional peak analysis, enabling accurate and ...
Deborah Herdt   +6 more
wiley   +1 more source

Disconnected aging: cerebral white matter integrity and age-related differences in cognition. [PDF]

open access: yes, 2014
Cognition arises as a result of coordinated processing among distributed brain regions and disruptions to communication within these neural networks can result in cognitive dysfunction.
Bennett, IJ, Madden, DJ
core   +1 more source

Clinical Pharmacogenetics Implementation Consortium (CPIC) Guideline for Thiopurine Dosing Based on TPMT and NUDT15 Genotypes: 2025 Update

open access: yesClinical Pharmacology &Therapeutics, EarlyView.
Thiopurine methyltransferase (TPMT) and Nudix hydrolase 15 (NUDT15) are key enzymes that catabolize thiopurines. Decreased or no‐function alleles in TPMT and NUDT15 are associated with reduced or no enzyme activity and predictive of pronounced adverse effects, including severe myelosuppression, that may occur among individuals treated with standard ...
Maud Maillard   +18 more
wiley   +1 more source

Flavor changes in Lentinus Edodes enzymatic hydrolysate maillard reaction products with different sugars by gas chromatography‐ion mobility spectrometry

open access: yesJournal of Future Foods, 2023
The characteristic flavor of the enzymatic hydrolysate of Lentinus edodes, which was involved in the Maillard reaction by xylose, fructose, glucose, sucrose, mannose, maltose, vitamin C (VC) and L-arabinose, was determined and analyzed by gas ...
Wenjia Cui   +4 more
doaj   +1 more source

Learning stable and predictive structures in kinetic systems: Benefits of a causal approach [PDF]

open access: yes, 2019
Learning kinetic systems from data is one of the core challenges in many fields. Identifying stable models is essential for the generalization capabilities of data-driven inference. We introduce a computationally efficient framework, called CausalKinetiX,
Bauer, Stefan   +2 more
core   +2 more sources

High‐Performance Solar‐Thermal Hydrogel Based on Waste Biomass Materials for Power Generation and Water Purification

open access: yesEcoEnergy, EarlyView.
An environmentally friendly and highly efficient solar evaporator was constructed using waste biomass materials and polyvinyl alcohol carrier, which achieves an outstanding evaporation rate of 1.48 kg m−2 h−1, corresponding to an energy conversion efficiency of 82.49% under 1.0 kW m−2 simulated sunlight irradiation.
Shuo Qi   +10 more
wiley   +1 more source

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