Results 151 to 160 of about 933,649 (316)

Synthesis of trimethylolpropane trioleate by using stannous oxalate catalyst

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract This study was conducted to synthesize trimethylolpropane trioleate (TMPTO) using a stannous oxalate catalyst and investigate the dependence of the esterification rate on reaction variables. The highest esterification rate of approximately 99% was achieved at a 2.75:1 oleic acid/trimethylolpropane, 1.5% catalyst amount, 180°C reaction ...
Oguzhan Ilgen, Sumeyye Bilgic
wiley   +1 more source

Integrating agro‐residue valorization and clean hydrogen production: coconut fiber‐based catalysts for NaBH4 hydrolysis

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract A novel phosphoric acid‐treated green coconut fiber (GCF‐C) was developed as a catalyst for hydrogen production from the hydrolysis of sodium borohydride (NaBH4). Characterization techniques confirmed structural modifications, including X‐ray diffraction, scanning electron microscopy, X‐ray fluorescence, Fourier transform infrared, and ...
Isabelly Silveira Freitas   +16 more
wiley   +1 more source

Shaping research in marine functional connectivity for integrated and effective marine science and management

open access: yesBiological Reviews, EarlyView.
ABSTRACT Effective knowledge of ecological connectivity at sea and at the land–sea interface is key to supporting global policy goals to conserve and restore ocean biodiversity and function. However, a persistent lack of commonality in terminology and understanding around the concept of connectivity in marine ecological studies hampers its integration ...
Audrey M. Darnaude   +20 more
wiley   +1 more source

Early evolutionary history of the seed

open access: yesBiological Reviews, EarlyView.
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman   +2 more
wiley   +1 more source

The implementation gap: how Cuba's tuberculosis setback exposes a universal challenge for low-burden countries. [PDF]

open access: yesLancet Reg Health Am
Martínez-Rodríguez A   +4 more
europepmc   +1 more source

Lichenic flora of the Toledo proviace (Toledo, Spain)

open access: yes, 1996
VAZOtIEZ, 5. & BURGAZ, A. R. 1996. Flora liquéniea de la provincia de Toledo (Toledo, España). Bat. (`amplatcn»/» 2>: 39-50. Se realiza cl primer catálogo de líquenes de la provincia de Toledo (España), utilizando las principales fuentes bibliográficas y recientes recolecciones realizadas por los autores.
Vázquez, Susana   +1 more
openaire   +1 more source

Elucidating the Interplay Between Structure and Electrochemical Behavior in Lignin‐Based Polymer Electrolytes for Potassium Batteries

open access: yesBattery Energy, Volume 4, Issue 2, March 2025.
Three biobased membranes are synthesized by crosslinking oxidized Kraft lignin with poly(ethylene glycol) diglycidyl ether of increasing molecular weights. After incorporation of solvated potassium salts, potassium batteries including these biobased gel polymer electrolytes are able to deliver a maximum specific capacity at 0.05 A g−1 as high as 130 ...
Giuseppe Pascuzzi   +5 more
wiley   +1 more source

A case study showing the role of hydrophobicity variants and other enriched mAb proteoforms on filterability through a virus filter with productivity improvement measures

open access: yesBiotechnology Progress, EarlyView.
Abstract A rapid assessment of manufacturability for drug candidates is crucial for advancing a prospective biotherapeutic from a candidate to a bulk drug substance. A lot‐to‐lot approach to manufacturability is adopted where each biologic batch is assessed for manufacturability as a bulk, unfractionated pool.
Solomon Isu   +6 more
wiley   +1 more source

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