Search Results - "Jakubek, S."

Calibration of Raman wavenumber in large Raman images using a mercury‐argon lamp by Jakubek, Ryan S., Fries, Marc D.

“…Raman imaging is an emerging tool for the analysis of meteorites, as it is capable of describing mineralogy, carbon composition/speciation, and crystal…”
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Nonlinear data-driven identification of polymer electrolyte membrane fuel cells for diagnostic purposes: A Volterra series approach by Ritzberger, D., Jakubek, S.

“…In this work, a data-driven identification method, based on polynomial nonlinear autoregressive models with exogenous inputs (NARX) and the Volterra series, is…”
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Online estimation of the electrochemical impedance of polymer electrolyte membrane fuel cells using broad-band current excitation by Ritzberger, D., Striednig, M., Simon, C., Hametner, C., Jakubek, S.

“…In this work, an online algorithm to estimate the electrochemical impedance spectrum of polymer electrolyte membrane fuel cells (PEMFCs) is presented. The…”
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Assessment of petrologic subtypes, subgroups, and pairing within CV chondrites in the US Antarctic meteorite collection by Righter, Kevin, Jakubek, Ryan S., Fries, Marc D., Schutt, John, Pando, Kellye, Harrington, Roger

“…Carbonaceous chondrites of the Vigarano group (CV) are primitive (nearly un‐metamorphosed) meteorites that provide a wealth of information about the early…”
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Impact shock origin of diamonds in ureilite meteorites by Nestola, Fabrizio, Goodrich, Cyrena A., Morana, Marta, Barbaro, Anna, Jakubek, Ryan S., Christ, Oliver, Brenker, Frank E., Domeneghetti, M. Chiara, Dalconi, M. Chiara, Alvaro, Matteo, Fioretti, Anna M., Litasov, Konstantin D., Fries, Marc D., Leoni, Matteo, Casati, Nicola P. M., Jenniskens, Peter, Shaddad, Muawia H.

“…The origin of diamonds in ureilite meteorites is a timely topic in planetary geology as recent studies have proposed their formation at static pressures >20…”
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Laser Raman Induced Degradation of Macromolecular Carbon in Coals and Meteorites by Jakubek, Ryan S., Fries, Marc D.

“…Macromolecular carbon (MMC) is a polymeric solid form of carbon formed from numerous natural and anthropogenic processes. MMC is found in geologic samples,…”
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Optimization based determination of highly absorbing boundary conditions for linear finite difference schemes by Schirrer, A., Talic, E., Aschauer, G., Kozek, M., Jakubek, S.

“…Many wave propagation problems (in acoustics or in railway catenary or cable car dynamics, for example) can be solved with high efficiency if the computational…”
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SHERLOC Raman Mineral Class Detections of the Mars 2020 Crater Floor Campaign by Corpolongo, Andrea, Jakubek, Ryan S., Burton, Aaron S., Brown, Adrian J., Yanchilina, Anastasia, Czaja, Andrew D., Steele, Andrew, Wogsland, Brittan V., Lee, Carina, Flannery, David, Baker, Desirée, Cloutis, Edward A., Cardarelli, Emily, Scheller, Eva L., Berger, Eve L., McCubbin, Francis M., Hollis, Joseph Razzell, Hickman‐Lewis, Keyron, Steadman, Kim, Uckert, Kyle, DeFlores, Lauren, Kah, Linda, Beegle, Luther W., Fries, Marc, Minitti, Michelle, Haney, Nikole C., Conrad, Pamela, Morris, Richard V., Bhartia, Rohit, Roppel, Ryan, Siljeström, Sandra, Asher, Sanford A., Bykov, Sergei V., Sharma, Sunanda, Shkolyar, Svetlana, Fornaro, Teresa, Abbey, William

“…The goals of NASA's Mars 2020 mission include searching for evidence of ancient life on Mars, studying the geology of Jezero crater, understanding Mars'…”
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A Model for Inhomogeneously Broadened Raman Bands by Jakubek, Ryan S.

“…Detailed information on the physics and chemistry of a sample can be derived from Raman band parameters. However, the Raman band observed by the detector…”
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Effect of the spectrometer slit width and charge‐coupled device detector on Raman intensities by Jakubek, Ryan S.

“…It is well known that Raman intensities are affected by the spectrometer slit width. Wider slit widths provide increased Raman intensity at the cost of…”
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A new model for the calculation of homogeneously broadened Raman spectral bandwidths and bandshapes by Jakubek, Ryan S.

“…Raman spectral bandwidths and bandshapes can provide detailed information on the physics and chemistry of a sample. The Raman band reported by a spectrometer…”
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Identification of Neurofuzzy Models Using GTLS Parameter Estimation by Jakubek, S., Hametner, C.

“…In this paper, nonlinear system identification utilizing generalized total least squares (GTLS) methodologies in neurofuzzy systems is addressed. The problem…”
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Ultraviolet resonance Raman spectroscopic markers for protein structure and dynamics by Jakubek, Ryan S., Handen, Joseph, White, Stephen E., Asher, Sanford A., Lednev, Igor K.

“…UV resonance Raman (UVRR) spectroscopy is a powerful tool for investigating the structure of biological molecules, such as proteins. Numerous UVRR…”
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Calibration of the temporal drift in absolute and relative Raman intensities in large Raman images using a mercury–argon lamp by Jakubek, Ryan S., Fries, Marc D.

“…Raman imaging is a powerful tool for the analysis of astromaterials including meteorites, cosmic dust, and samples returned to Earth by spacecraft. Many…”
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Calibration of Raman bandwidth in large Raman images using a mercury–argon lamp by Jakubek, Ryan S., Fries, Marc D.

“…Raman imaging has proven to be an important tool in the analysis of astromaterials. Raman imaging can describe the composition and mineralogy of astromaterials…”
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Hydrophobic Collapse Initiates the Poly(N‑isopropylacrylamide) Volume Phase Transition Reaction Coordinate by Wu, Tsung-Yu, Zrimsek, Alyssa B, Bykov, Sergei V, Jakubek, Ryan S, Asher, Sanford A

“…The best-known examples of smart, responsive hydrogels derive from poly­(N-isopropylacrylamide) (PNIPAM) cross-linked polymer networks. These hydrogels undergo…”
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Raman spectroscopy provides insight into carbonate rock fabric based on calcite and dolomite crystal orientation by Murphy, Ashley E., Jakubek, Ryan S., Steele, Andrew, Fries, Marc D., Glamoclija, Mihaela

“…Carbonate rocks record the oldest forms of life on Earth, and their geologic reconstruction requires multiple methods to determine physical and chemical…”
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Mechanisms by Which Organic Solvent Exchange Transforms Responsive Pure Protein Hydrogels into Responsive Organogels by Smith, Natasha Lynn, Coukouma, Andrew Eagle, Jakubek, Ryan S, Asher, Sanford A

“…Responsive pure protein organogel sensors and catalysts are fabricated by replacing the aqueous mobile phase of protein hydrogels with pure ethylene glycol…”
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Interaction Enthalpy of Side Chain and Backbone Amides in Polyglutamine Solution Monomers and Fibrils by Punihaole, David, Jakubek, Ryan S, Workman, Riley J, Asher, Sanford A

“…We determined an empirical correlation that relates the amide I vibrational band frequencies of the glutamine (Q) side chain to the strength of hydrogen…”
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UV Resonance Raman Structural Characterization of an (In)soluble Polyglutamine Peptide by Jakubek, Ryan S, White, Stephen E, Asher, Sanford A

“…Fibrillization of polyglutamine (polyQ) tracts in proteins is implicated in at least 10 neurodegenerative diseases. This generates great interest in the…”
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