Results 11 to 20 of about 1,613,986 (294)

The development and calibration of a generic dynamic absorption chiller model [PDF]

open access: yes, 2012
Although absorption cooling has been available for many years, the technology has typically been viewed as a poorly performing alternative to vapour compression refrigeration.
Borg, Simon Paul, Kelly, Nicolas
core   +4 more sources

On minimizing maximum transient energy growth [PDF]

open access: yes, 2005
The problem of minimizing the maximum transient energy growth is considered. This problem has importance in some fluid flow control problems and other classes of non-linear systems.
Whidborne, James F.   +2 more
core   +7 more sources

Synthesis and Characterizations of 5,5′‐Bibenzo[rst]pentaphene with Axial Chirality and Symmetry‐Breaking Charge Transfer

open access: yesAdvanced Science, 2022
Exploration of novel biaryls consisting of two polycyclic aromatic hydrocarbon (PAH) units can be an important strategy toward further developments of organic materials with unique properties.
Xiushang Xu   +8 more
doaj   +1 more source

Acoustic Vibration Modes of Gold–Silver Core–Shell Nanoparticles

open access: yesChemosensors, 2022
Bimetallic Au/Ag core–shell cuboid nanoparticles (NPs) exhibit a complex plasmonic response dominated by a dipolar longitudinal mode and higher-order transverse modes in the near-UV, which may be exploited for a range of applications.
Tadele Orbula Otomalo   +11 more
doaj   +1 more source

X-Ray Transient Absorption Reveals the 1Au (Nπ*) State of Pyrazine in Electronic Relaxation [PDF]

open access: yes, 2021
Electronic relaxation in organic chromophores often proceeds via states not directly accessible by photoexcitation. We report on the photoinduced dynamics of pyrazine that involves such states, excited by a 267 nm laser and probed with X-ray transient ...
Sonia, Coriani   +11 more
core   +2 more sources

"TRANSIENT ABSORPTION OF GOLD NANOPARTICLES OF VARIOUS DIAMETERS "

open access: yesEurasian Physical Technical Journal, 2022
The transient absorption of gold nanoparticles with an average diameter of 13±5 and 48±16 nm upon photoexcitation by nanosecond laser pulses has been studied.
N.Kh. Ibrayev   +2 more
doaj   +1 more source

Femtosecond Spectroscopy on a Dibenzophenazine‐Cored Macrocycle Exhibiting Thermally Activated Delayed Fluorescence

open access: yesChemistryOpen, 2023
The photophysics of a thermally activated delayed fluorescence (TADF) emitting macrocycle consisting of two dibenzo[a,j]phenazine acceptor moieties bridged by two N,N,N’,N’‐tetraphenylene‐1,4‐diamine donor units was scrutinized in solution by steady ...
Dr. Kristoffer A. Thom   +6 more
doaj   +1 more source

Ultrafast photophysical studies of sulfonated polyaniline in aqueous medium by femtosecond transient absorption spectroscopy [PDF]

open access: yes, 2022
In our previous work (Khatun et al., J. Phys. Chem. A 122 (2018) 7089-7098), synthesis and characterization of sulfonated polyaniline (SPANI) were discussed.
Rijia, Khatun   +2 more
core   +1 more source

First-principles simulation of excitation energy transfer and transient absorption spectroscopy in the CP29 light-harvesting complex [PDF]

open access: yes, 2023
The dynamics of delocalized excitons in light-harvesting complexes (LHCs) can be investigated using different experimental techniques, and transient absorption spectroscopy (TA) is one of the most valuable methods for this purpose.
Vladislav, Sláma   +2 more
core   +2 more sources

Photoswitching of arylazopyrazoles upon S1 (nπ*) excitation studied by transient absorption and ab-initio molecular dynamics [PDF]

open access: yes, 2023
Arylazopyrazoles (AAPs) are an important class of molecular photoswitches with high photostationary states (PSS) and long thermal lifetimes. The ultrafast photoisomerization of four water-soluble arylazopyrazoles, all of them featuring an ortho ...
Katharina, Ziegler   +6 more
core   +1 more source

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