Results 81 to 90 of about 6,710 (300)

Enhancing Biogenic Formic Acid Production in the Modified OxFA Process by Acetonitrile Addition

open access: yesAdvanced Science, EarlyView.
In this study, the beneficial effect of using acetonitrile as a co‐solvent in the modified OxFA process is shown, outperforming methanol, demonstrating improved reaction kinetics combined with high selectivity for the HPA‐2 (H5PV2Mo10O40) catalyzed oxidation of xylose to FA.
Jan‐Dominik H. Krueger   +7 more
wiley   +1 more source

Entrainer Based Reactive Distillation for Esterification of Ethylene Glycol with Acetic Acid

open access: yes, 2009
In this paper, we study the potential of entrainer in reactive distillation involving high boiling reactants to decrease the reactive Stage temperature and for separation of one of the products to enhance the conversion. Esterification of ethylene glycol
SRINIVAS, S, SUMAN, T, MAHAJANI, SM
core   +1 more source

Mixing‐Driven Defects and Composition Evolution in Multi‐Material Metal Additive Manufacturing

open access: yesAdvanced Science, EarlyView.
Operando synchrotron X‐ray imaging coupled with high‐fidelity multiphysics modeling uncovers how inter‐material mixing reshapes keyhole dynamics and drives distinct pore‐formation pathways in multi‐material laser powder bed fusion (LPBF). Composition‐dependent instabilities trigger defects, whereas rescanning suppresses porosity and homogenizes Cu ...
Zhilang Zhang   +5 more
wiley   +1 more source

Entrainment as an electrophysiologic phenomenon

open access: yesJournal of the American College of Cardiology, 1984
observed that a critical rate of pacing was requiredto terminate atrial flutter. At the lower rates of pacing,continuation of the arrhythmia occurred immediately aftercessation of pacing. Their observations had important clin­ical implications, including the recommendation for system­atic prophylactic implantation of electrodes during cardiacsurgical ...
Brugada, Pedro, Wellens, Hein J.J.
openaire   +2 more sources

Control of a Ternary Extractive Distillation Process with Recycle Splitting Using a Mixed Entrainer

open access: yes, 2017
Dynamic control of the ternary extractive distillation process is complex, due to the relatively high number of operating parameters and interactions between multiple azeotropes.
Wang, Huixin   +13 more
core   +1 more source

Wearable‐Derived Diurnal Alignment Between Physical Activity and Device Temperature Predicts Future Disease and Mortality Risk

open access: yesAdvanced Science, EarlyView.
Wearable‐derived diurnal alignment between physical activity and device temperature, decomposed into 24 h coupling strength (M24), phase deviation (D24), and 12 h harmonic magnitude (M12), is examined in approximately 90,000 UK Biobank participants.
Han Chen   +6 more
wiley   +1 more source

Entrainment [PDF]

open access: yes, 2020
Helga Peter, Thomas Penzel
  +4 more sources

Qualitative assessment of interfacial bonding in 3D printing concrete exposed to frost attack

open access: yesCase Studies in Construction Materials, 2020
The 3D printing technology is a novel construction process to build concrete structures layer-by-layer based on computer digital programs. The main objective of this research program is to develop a testing protocol that replicates the successive ...
Joseph J. Assaad   +2 more
doaj   +1 more source

Separation of Water-Acetone Mixture Using Suitable Entrainer (Simulation) [PDF]

open access: yes, 2010
Acetone and Water mixture formed azeotrope and inflections point depending on the operating temperature and pressure. Hence, this mixture cannot be separated by using simple distillation.
Khairunnisa binti Abdul Rapah, Khairunnisa
core  

Entrainer Selection And Solvent Recycling In Complex Batch Distillation

open access: yes, 2004
This article presents a simultaneous integration of entrainer selection and solvent recycling for the batch distillation synthesis problem for the first time.
Tomazi, Keith G.   +2 more
core   +1 more source

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