Results 61 to 70 of about 225,412 (285)

Vibronic mixing enables ultrafast energy flow in light-harvesting complex II

Nature Communications, 2020
Excitation energy transfer within light-harvesting complex II underlies plant photosynthesis but its detailed mechanism is not yet understood. Here the authors explore, by 2D electronic-vibrational spectroscopy, the role of mixing of vibrational and ...
Eric A. Arsenault, Yusuke Yoneda, Masakazu Iwai, Krishna K. Niyogi, Graham R. Fleming   +4 more
doaj   +1 more source

Thermophysical Properties of the Desulphurization Slags With Various CaS and CaO/Al2O3 Ratio

Advanced Engineering Materials, EarlyView.
This article investigates how CaS content and the CaO/Al2O3 ratio influence the thermophysical properties of desulphurization slags. Using experimental measurements and thermodynamic simulations, this study reveals complex effects on viscosity, surface tension, and density, providing new insight into slag structure and phase behavior under ...
Eldar Salpagarov, Matheus Roberto Bellé, Anton Yehorov, Julia Richter, Olena Volkova   +4 more
wiley   +1 more source

Advances in Vibrational Spectroscopic Techniques for the Detection of Bio-Active Compounds in Virgin Olive Oils: A Comprehensive Review

Foods
Vibrational spectroscopic techniques have gained significant attention in recent years for their potential in the rapid and efficient analysis of virgin olive oils, offering a distinct advantage over traditional methods. These techniques are particularly
Fangchen Ding, Sebastián Sánchez-Villasclaras, Leiqing Pan, Weijie Lan, Juan Francisco García-Martín   +4 more
doaj   +1 more source

Full characterization of vibrational coherence in a porphyrin chromophore by two-dimensional electronic spectroscopy [PDF]

, 2015
In this work we present experimental and calculated two-dimensional electronic spectra for a 5,15-bisalkynyl porphyrin chromophore. The lowest energy electronic Qy transition couples mainly to a single 380 cm–1 vibrational mode.
Anderson H. L., Atamian M., Butkus V., Butkus V., Butkus V., Caram J. R., Cheng Y. C., Cheng Y. C., Chenu A., Christensson N., de Boeij W. P., deBoeij W. P., Dostal J., Dostal J., Drobizhev M., Engel G. S., Fleming G. R., Franco V. A. Camargo, Ginsberg N. S., Harry L. Anderson, Heisler I. A., Hwang I., Ismael A. Heisler, Jonas D. M., Koszelewski D., Mancal T., Milota F., Milota F., Nemeth A., Panitchayangkoon G., Panitchayangkoon G., Perlik V., Pisliakov A. V., Pullerits T., Schlau-Cohen G. S., Seibt J., Stephen R. Meech, Tiwari V., Turner D. B., Turner D. B.   +39 more
core   +1 more source

Raman Spectroscopic Identification of Oxide Phases in a Corroded MgO–Steel Composite Anode Used in Aluminum Molten Salt Electrolysis

Advanced Engineering Materials, EarlyView.
Micro‐Raman spectroscopy is applied to characterize corrosion products in a recycled‐based MgO–316L steel composite anode after molten salt electrolysis. A depth‐dependent Fe–O/Fe–Al–O layer sequence of magnetite, hercynite, and an Al‐doped magnetite transition zone is identified.
Felix Drechsler, Serhii Yaroshevskyi, Alexander Adamczyk, Mahnaz Mehdizadehlima, Julia Richter, Cameliu Himcinschi, David Rafaja, Alexandros Charitos, Christos G. Aneziris, Jens Kortus   +9 more
wiley   +1 more source

Lymph node study by confocal Raman spectroscopy

O Mundo da Saúde, 2017
Among the lymphoid organs there are lymph nodes,, which are considered as lymph filters because they are rich in lymphocytes and other defense cells.
Juliana dos Santos Corrêa, Lázaro Pinto Medeiros Neto, Maurílio José Chagas, Aline Priscila Campos Ferreira, Vinícius de Almeida Loddi, Claudio Alberto Tellez Soto, Airton Abrahão Martin   +6 more
doaj  

High-resolution Infrared Spectroscopy of the v23 and v22 Vibrational Bands of Methyl Vinyl Ketone [PDF]

, 2018
The high-resolution Infrared spectrum of methyl vinyl ketone (C4H6O) has been acquired in the region containing the v22 and v23 bands near 987 cm-1 and 1001cm-1, respectively, using a quantum cascade laser-based spectrometer.
Iranpour, Michael
core   +1 more source

Hyperfine, rotational, and vibrational structure of the triplet ground state of Rb molecules

, 2010
We have performed high-resolution two-photon dark-state spectroscopy of an ultracold gas of Rb molecules in the triplet ground state at a magnetic field of about 1000 G.
Denschlag, Johannes Hecker, Grimm, Rudolf, Lang, Florian, Strauss, Christoph, Takekoshi, Tetsu, Tiemann, Eberhard, Winkler, Klaus   +6 more
core   +1 more source

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

Advanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller, Florian Kerber, Kirsten Moritz, Steffen Dudczig, Konstantin Kraushaar, Thomas Schemmel, Jana Hubálková, Patrick Gehre, Christos G. Aneziris   +8 more
wiley   +1 more source

Development of Sustainable MgO–C Refractories Using MgO–C Recyclates and a Novel Eco‐Friendly Fructose–Tannin Binder Crosslinked With Citric Acid

Advanced Engineering Materials, EarlyView.
This study develops sustainable MgO–C refractories using recycled materials and eco‐friendly fructose–tannin binders. The enhanced performance of citric acid as a cross‐linker and functional additives on mechanical and thermomechanical properties was examined. Characterization included strength tests, immersion trials, and microstructural and inclusion
Dinesh K. Gunasekar, Jana Hubálková, Steffen Dudczig, Gert Schmidt, Florian Kerber, Thomas Schemmel, Patrick Gehre, Christos G. Aneziris   +7 more
wiley   +1 more source