Results 41 to 50 of about 49,861 (259)

Determination of polybutylene terephthalate polycondensation equilibrium constant using a batch reactor [PDF]

Macromolecular Symposia, 2004
AbstractThe PBT polycondensation equilibrium constant at 255°C was determined using a batch reactor. Starting from a Polybutylene terephthalate (PBT) prepolymer having a degree of polymerisation of 12.7, equilibrium experiments were performed in the range of 1 to 50 mbar.
Darda, Pranay Jairam, Hogendoorn, Kees, Molenkamp, Tjaard, Versteeg, Geert   +3 more
openaire   +2 more sources

Mathematical Modelling of Micronutrient Recovery from Vegetable Oil by Silica-based Adsorption: Vitamin E from Palm Fatty Acid Distillate

Equilibrium, 2017
Mathematical modelling on kinetics of batch adsorption of vitamin E separation from palm fatty acid distillate (PFAD) has been set-up and then applied for literature experimental data.
Ari Diana Susanti, Wahyudi Budi Sediawan, Sang Kompiang Wirawan, Budhijanto Budhijanto   +3 more
doaj   +1 more source

ESTIMATION OF THERMODYNAMIC ISOTHERMS FOR MN ADSORPTION IN SOME CALCAREOUS SOILS AT SULAIMANI GOVERNORATE.

The Iraqi Journal of Agricultural science, 2019
This study was conducted to determine the description of Mn adsorption phenomena through adsorption isotherms in some calcareous soils at Sulaimani governorate.
Abdullah & et al.
doaj   +1 more source

Separation of (2E,4E)-deca-2,4-dienal from a Biocatalytic Reaction Mixture Using Hydrophobic Adsorbents

Separations, 2023
Biocatalytic oxidation of a fatty acid preparation by enzymes released from a plant extract provided (2E,4E)-deca-2,4-dienal (2,4-DDAL), a valuable natural aroma.
Marta Ostrihoňová, Monika Antošová, Hana Dobiašová, Justína Čuchorová, Kvetoslava Vranková, Milan Polakovič   +5 more
doaj   +1 more source

Adsorption of Eriochrome Black-T(EBT) using tea waste as a low cost adsorbent by batch studies: A green approach for dye effluent treatments

Current Research in Green and Sustainable Chemistry, 2020
The potential of using tea waste as a low-cost adsorbent for the removal of Eriochrome Black-T (EBT), an anionic dye from aqueous solution was studied.
Megha Bansal, Prem Kishore Patnala, Tom Dugmore   +2 more
doaj   +1 more source

Identifying and characterising a plant GH1 β‐glucosidase that exhibits hydrolytic activity on N‐linked glucopyranoside

FEBS Open Bio, EarlyView.
We report the first β‐glucosidase with demonstrated hydrolytic activity on an N‐linked glycopyranoside. The enzyme, native to maize, was biochemically characterised for this novel reaction, and structural modelling of the enzyme–substrate complex revealed several clues to the underlying reduced catalytic rate relative to its native O‐glycopyranoside ...
Hani Gharabli, Carlotta Chiesa, Maher Abou Hachem, Ditte Hededam Welner   +3 more
wiley   +1 more source

Experimental investigation of titanium dioxide as an adsorbent for removal of Congo red from aqueous solution, equilibrium and kinetics modeling

Journal of Water Reuse and Desalination, 2020
The adsorption of Congo red onto titanium dioxide (TiO2) material has been investigated at batch conditions. The effects of contact time (0–60 min), initial pH (3–11), agitation speed (100–500 rpm), temperature (298–343 K), adsorbent dosage (0.5–2 g/L ...
Moussa Abbas
doaj   +1 more source

GelMA‐based 3D spheroids recapitulate transcriptomic and functional hallmarks of myeloid sarcoma

FEBS Open Bio, EarlyView.
GelMA 5% hydrogels support the formation of myeloid leukemia spheroids that recapitulate MS‐specific features, including G1 arrest, apoptosis, and ECM‐driven transcriptomic reprogramming. The 3D model mimicked soft‐tissue‐like stiffness and oxygen conditions, and transcriptomic convergence with primary MS samples confirmed its utility as a preclinical ...
Nicolas Germain, Elise Buret, Le Hoang Thanh Nguyen, Marion Cocheteux, Nicolas Touya, Mélanie Dhayer, Romain Dubois, Frank Lafont, Sebastien Janel, Patrice Maboudou, Steve Lancel, Philippe Marchetti   +11 more
wiley   +1 more source

Customer Equilibrium and Optimal Strategies in a Batch-Service Queueing System with a Proportional Pricing Coefficient

Mathematics
This work analyzes an observable batch service queuing system with a proportional pricing coefficient and multiple access points. Based on whether the system is idle upon arrival, we derive the equilibrium threshold strategy for customers to either wait ...
Pingping Wang, Wenjing Peng, Yuquan Yao, Yingling Chen, Zhen Wang   +4 more
doaj   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source