Results 61 to 70 of about 22,450 (171)

Selective hydrogenation in trickle-bed reactor. Experimental and modelling including partial wetting. [PDF]

, 2003
A steady state model of a trickle bed reactor is developed for the consecutive hydrogenation of 1,5,9-cyclododecatriene on a Pd/Al2O3 catalyst. Various experiments have shown that the selectivity of this reaction towards the product of interest is much ...
Delmas, Henri, Dietz, Adrian, Julcour-Lebigue, Carine, Wilhelm, Anne-Marie   +3 more
core   +3 more sources

Development of Detailed Surface Reaction Mechanism for Methanation Process Based on Experiments

PAMM, Volume 26, Issue 1, March 2026.
ABSTRACT The pressure to reduce greenhouse gas emissions is growing, which demands new and innovative technologies to produce mobile as well as stationary energy. The CO2$\rm {CO_2}$ methanation offers a pathway to reduce greenhouse gas emissions by directly converting CO2$\rm {CO_2}$ to CH4$\rm {CH_4}$. This also plays a crucial role in “power‐to‐gas”
Rakhi Verma, Vivien Günther, Evgenia Charlafti, Fabian Rachow, Binod Raj Giri, Abdelkader Hemaizia, Dominique Thévenin, Jan Ingo Flege, Fabian Mauss   +8 more
wiley   +1 more source

Subtractive gamma discrimination technique for neutron diamond detectors operating in mixed radiation fields

Acta Polytechnica CTU Proceedings
A detection system based on diamond detectors and subtractive discrimination was developed for the measurement of thermal neutrons flux distribution changes during rod drop transient at the VR-1 reactor.
Ondřej Novák, Ondřej Huml, Martin Kropík, Ľubomir Sklenka   +3 more
doaj   +1 more source

Sewage treatment and removal of micropollutants in suspended and attached growth systems combining Chlorella sorokiniana and activated sludge

Journal of Chemical Technology &Biotechnology, Volume 101, Issue 2, Page 459-470, February 2026.
Abstract Background Algal‐bacterial consortia represent a promising symbiotic system with high potential for removing major pollutants and micropollutants from municipal wastewater. Four continuously stirred sequential batch reactors (SBRs) were used to investigate the combination of Chlorella sorokiniana and activated sludge for municipal wastewater ...
Asimina Koukoura, Evdokia Gkalipidou, Georgia Gatidou, Eirini Zkeri, Michalis S. Fountoulakis, Athanasios S. Stasinakis   +5 more
wiley   +1 more source

Improved Determination of the $^{235}\text{U}$ and $^{239}\text{Pu}$ Reactor Antineutrino Cross Sections per Fission

, 2017
We present the results of a combined fit of the reactor antineutrino rates and the Daya Bay measurement of $\sigma_{f,235}$ and $\sigma_{f,239}$. The combined fit leads to a better determination of the two cross sections per fission: $\sigma_{f,235} = 6 ...
Giunti, Carlo
core   +1 more source

Slowly modulated oscillations in nonlinear diffusion processes [PDF]

, 1977
It is shown here that certain systems of nonlinear (parabolic) reaction-diffusion equations have solutions which are approximated by oscillatory functions in the form R(ξ - cτ)P(t^*) where P(t^*) represents a sinusoidal oscillation on a fast time scale t*
Cohen, Donald S., Hoppensteadt, Frank C., Miura, Robert M.   +2 more
core   +1 more source

Compost Tea as a Natural Bioactive Solution: Unlocking the Antimicrobial and Antiviral Potential of Bell Pepper and Citrus Wastes

Environmental Microbiology Reports, Volume 18, Issue 1, February 2026.
Compost teas derived from bell pepper and citrus waste are rich in bioactive phenolics and lignin derivatives, showing strong antibacterial activity against gram‐positive bacteria and potent antiviral effects against HSV‐1 and RSV. These findings highlight their potential as sustainable, circular bioresources for biomedical applications.
Maria Vittoria Verrillo, Roberta Della Marca, Vincenza Cozzolino, Annalisa Chianese, Carla Zannella, Massimiliano Galdiero, Riccardo Spaccini, Anna De Filippis   +7 more
wiley   +1 more source

Uranium foil neutron activation analysis

Acta Polytechnica
At the Department of Nuclear Reactors of the Faculty of Nuclear Sciences and Physical Engineering of the Czech Technical University (FNSPE CTU) in Prague, there is a need to implement a neutron activation analysis as a tool for the separation of uranium
Ján Kozic, Milan Štefánik
doaj   +1 more source

Safe design and operation of fluidized-bed reactors: Choice between reactor models [PDF]

, 1990
For three different catalytic fluidized bed reactor models, two models presented by Werther and a model presented by van Deemter, the region of safe and unique operation for a chosen reaction system was investigated. Three reaction systems were used: the
Westerink, E.J., Westerterp, K.R.
core   +2 more sources

Yeast‐Based Biotechnology for Civilian Security

Environmental Microbiology Reports, Volume 18, Issue 1, February 2026.
Yeasts constitute robust and versatile eukaryotic platforms for biotechnological applications relevant to civilian security. Both native and genetically engineered yeast systems enable sensitive detection of chemical and biological hazards, effective removal of metals and organic pollutants, and detoxification of mycotoxins.
Justyna Ruchała, Roksolana Vasylyshyn, Maciej Wnuk   +2 more
wiley   +1 more source