Results 21 to 30 of about 1,525,068 (302)

Chemical characteristics of brown carbon in atmospheric particles at a suburban site near Guangzhou, China [PDF]

open access: yesAtmospheric Chemistry and Physics, 2018
Light-absorbing organic carbon (or brown carbon, BrC) in atmospheric particles has received much attention for its potential role in global radiative forcing.
Y. M. Qin   +14 more
doaj   +1 more source

Mid-infrared n-Ge on Si Plasmonic Based Microbolometer Sensors [PDF]

open access: yes, 2017
The detection and amplification of molecular absorption lines from a chemical weapons simulant is demonstrated using plasmonic antennas fabricated from n-Ge epitaxially grown on Si. A free-standing Si0.25Ge0.75 microbolometer detector with n-Ge plasmonic
Baldassarre, Leonetta   +12 more
core   +1 more source

Numerical calculation of simultaneous mass transfer of two gases accompanied by complex reversible reactions [PDF]

open access: yes, 1980
A discretization technique is described, which makes it possible to calculate numerically mass transfer behaviour between two media in which complex chemical reactions occur.
Beckum, F.P.H. van   +3 more
core   +4 more sources

The use of heat and chemical penetration enhancers to increase the follicular delivery of erythromycin to the skin [PDF]

open access: yes, 2019
Copyright © 2019. Published by Elsevier B.V.The effect of heat on the follicular absorption of drugs into the skin has not previously been investigated.
Akomeah   +42 more
core   +2 more sources

Novel Broadband Amplifier for Mid-Infrared Semiconductor laser and applications in spectroscopy [PDF]

open access: yes, 2010
An amplifier design for broadband Mid-IR buried-hetero (BH) structure epitaxial laser is presented, and external cavity design based on this amplifier is described.
Deev, Andrei   +4 more
core   +1 more source

Evaluating the Impact of CO2 Capture on the Operation of Combined Cycles with Different Configurations

open access: yesEnergies
In order to reduce greenhouse gas emissions associated with power generation, the replacement of fossil fuels with renewables must be accompanied by the availability of dispatchable sources needed to balance electricity demand and production.
Elena Savoldelli, Silvia Ravelli
doaj   +1 more source

`Pure' Supernovae and Accelerated Expansion of the Universe

open access: yes, 2011
A special class of type Ia supernovae that is not subject to ordinary and additional intragalactic gray absorption and chemical evolution has been identified.
A. Aguirre   +26 more
core   +1 more source

Simultaneous removal of CO2 and H2S using MEA solution in a packed column absorber for biogas upgrading [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2013
Biogas production and utilization is an emerging alternative energy technology that has gained importance since the price of oil and gas has increased steadily over the last two decades. Biogas primarily consists of methane (CH4) and carbon dioxide (CO2)
Preecha Kasikamphaiboon   +3 more
doaj  

Breakdown of the mirror image symmetry in the optical absorption/emission spectra of oligo(para-phenylene)s [PDF]

open access: yes, 2005
The absorption and emission spectra of most luminescent, pi-conjugated, organic molecules are the mirror image of each other. In some cases, however, this symmetry is severely broken.
Andrew C. Grimsdale   +9 more
core   +3 more sources

Optimized Chemical Absorption Process for CO2 Removal in a Steel Plant

open access: yesEnergies
The steel industry is a significant contributor to global CO2 emissions due to the highly energy-intensive nature of its production processes. Specifically, steel production involves the conversion of iron ore into steel through processes such as the ...
Valentina Schiattarella, Stefania Moioli
doaj   +1 more source

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