Results 71 to 80 of about 467,855 (300)

Simply conceiving the Arrhenius law and absolute kinetic constants using the geometric distribution

, 2013
Although first-order rate constants are basic ingredients of physical chemistry, biochemistry and systems modeling, their innermost nature is derived from complex physical chemistry mechanisms.
Michel, Denis
core   +3 more sources

Directed evolution of enzymes at the crossroads of tradition and innovation

FEBS Open Bio, EarlyView.
An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova, Andrej Mirossay, Erik Sedlak   +2 more
wiley   +1 more source

Heavy-Light Decay Constants: Conclusions from the Wilson Action [PDF]

, 1998
We report on the results of a MILC collaboration calculation of $f_B$, $f_{B_s}$, $f_D$, $f_{D_s}$ and their ratios. We discuss the most important errors in more detail than we have elsewhere.Comment: LATTICE98(heavyqk) 3 latex pages and 3 postscript ...
Bernard, C., DeGrand, T., DeTar, C., Gottlieb, Steven, Heller, Urs M., Hetrick, J., Ishizuka, N., McNeile, C., MILC Collaboration, Sugar, R., Toussaint, D., Wingate, M.   +11 more
core   +2 more sources

Effects of Biological Sex and Age on Cerebrospinal Fluid Markers—A Retrospective Observational Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Cerebrospinal fluid (CSF) analysis is a key diagnostic tool for neurological diseases. To date, only a few studies have investigated in larger cohorts the effect of age and biological sex on diagnostic markers extracted from CSF. Methods For this retrospective observational study, 4163 CSF findings (2012–2020) were evaluated.
Isabel‐Sophie Hafer, Simon Faissner, Ralf Gold, Aiden Haghikia   +3 more
wiley   +1 more source

Adsorption Kinetics and Thermodynamics Characteristics of Expanded Graphite for Polyethylene Glycol

E-Journal of Chemistry, 2010
In the present study, expanded graphite (EG) is prepared with 50 mesh crude graphite through chemical oxidation and its adsorption kinetic and thermodynamic characteristics for Polyethylene glycol (PEG) with different molecular weight (MW) in aqueous ...
Xiu-Yan Pang
doaj   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

Kinetic analysis of monomolecular cracking of normal Alkanes (C4C6) over Brønsted Acid site of Zeolitic type catalyst with energetic evaluation of transition states using Quantum-Chemical modeling

Fuel Communications
The work aims to determine the kinetic parameters of reactions for production of light olefins via catalytic cracking reactions of C4–C6 n-alkanes based on the energy characteristics of the transition state using quantum chemical calculations.
Saba Foroutan Ghazvini, Elena Ivashkina Nikolaevna   +1 more
doaj   +1 more source

Kinetic Concepts for Measuring Microbial Rate Constants: Effects of Nutrients on Rate Constants [PDF]

Applied and Environmental Microbiology, 1986
We investigated the effect of preincubation of environmental waters amended with inorganic nutrients (nitrogen, phosphorus, and traces of iron and magnesium) on the kinetics of the microbial transformation of phenol, propanil, propyl ester of (2,4-dichlorophenoxy)acetic acid, methyl parathion, Ronnel, and methoxychlor in pond and river waters.
D F, Paris, J E, Rogers
openaire   +2 more sources

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

Advanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera, Philippe Marrec, A. Jorge Parola, Madalena Dionísio, Hugo Águas, Andreia F. M. Santos, Hamed Pourkheirollah, Donald Lupo, César A. T. Laia   +8 more
wiley   +1 more source

Evaluation of biodegradation kinetic constants for aromatic compounds by means of aerobic batch experiments [PDF]

, 2006
Kinetics of aerobic biodegradation have been investigated for twenty aromatic species using sludges collected from the aeration basin of municipal sewage treatment plants. The reproducibility of the results is tested with respect to the sludges period of
ANDREOZZI, ROBERTO, CESARO, RAFFAELE, MAROTTA, RAFFAELE, PIROZZI, FRANCESCO   +3 more
core   +1 more source