Results 31 to 40 of about 1,525,068 (302)

Preparation and characterization of highly thulium- and alumina-doped optical fibers for single-frequency fiber lasers [PDF]

open access: yes, 2012
Thulium-doped fibers suitable for core-pumped single-frequency lasers were fabricated by the modified chemical vapor deposition (MCVD) method. Refractive index profile, doping profile and spectral absorption was measured.
Blanc, Wilfried   +7 more
core   +3 more sources

Study on Properties of Hydrophilic Modified Polypropylene Regular Filler by Melt Blending in Carbon Dioxide Capture Tower

open access: yes发电技术
ObjectivesAt present, most amine based CO2 capture systems for flue gas use stainless steel filled towers. In order to significantly reduce the cost of filled towers, this paper proposes the use of polypropylene structured filler instead of high cost ...
HU Ximing   +7 more
doaj   +1 more source

Mechanistic modeling of pollutant removal, temperature, and evaporation in chemical air scrubbers [PDF]

open access: yes, 2016
Chemical air scrubbers reduce the concentration of water-soluble components such as ammonia from the outgoing ventilation air through absorption in water, followed by chemical conversions and removal of the end products.
Andreasen   +44 more
core   +2 more sources

Review on CCUS Sections Applied to Waste to Energy Plants

open access: yesEnergies
The need to mitigate climate change has increased interest in Waste-to-Energy (WtE) plants, which reduce landfill use while generating power, but remain significant sources of carbon dioxide emissions.
Federica Restelli   +2 more
doaj   +1 more source

Dynamic Process Model Validation and Control of the Amine Plant at CO2 Technology Centre Mongstad

open access: yesEnergies, 2017
This paper presents a set of steady-state and transient data for dynamic process model validation of the chemical absorption process with monoethanolamine (MEA) for post-combustion CO2 capture of exhaust gas from a natural gas-fired power plant. The data
Rubén M. Montañés   +2 more
doaj   +1 more source

Thermo-Chemical Instability and Energy Analysis of Absorption Heat Pumps

open access: yesEnergies, 2020
This paper presents the results of energy analysis of absorption heat pumps. The thermo-chemical instability term was introduced for absorption heat pumps used for heating or cooling or heating and cooling. A higher thermo-chemical instability results in
Gábor L. Szabó
doaj   +1 more source

Quantifying the loss of methane through secondary gas mass transport (or 'slip') from a micro-porous membrane contactor applied to biogas upgrading [PDF]

open access: yes, 2013
Secondary gas transport during the separation of a binary gas with a micro-porous hollow fibre membrane contactor (HMFC) has been studied for biogas upgrading.
Jefferson, Bruce   +2 more
core   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

Optimization for biohydrogen purification process by chemical absorption techniques

open access: yesSustainable Environment Research, 2023
Palm oil decanter cake and crude glycerol, which are characterized by their highly biodegradable organic content and nutrient-rich composition, are attractive ingredients for biohydrogen production.
Wichayaporn Chusut   +2 more
doaj   +1 more source

Simulation and Optimization of Vapor Absorption Refrigeration System Using Dwsim

open access: yesChemical Engineering Transactions, 2023
DWSIM is an open-source chemical process simulator. For educational purpose, its capabilities are comparable to commercial simulators such as Aspen Plus, Aspen HYSYS, ChemCAD, ProSim, etc.
Somchart Chantasiriwan
doaj   +1 more source

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