Results 21 to 30 of about 267,753 (326)

Ultraviolet photoelectron spectroscopy: Practical aspects and best practices

Applied Surface Science Advances, 2023
Ultraviolet photoelectron spectroscopy (UPS) is an important technique for measuring the energies of the valence states of metallic, semiconducting and adsorbate-covered metal and semiconducting surfaces.
James E. Whitten
doaj   +1 more source

Real-Time Analysis of Isoprene in Breath by Using Ultraviolet-Absorption Spectroscopy with a Hollow Optical Fiber Gas Cell

Sensors, 2016
A breath analysis system based on ultraviolet-absorption spectroscopy was developed by using a hollow optical fiber as a gas cell for real-time monitoring of isoprene in breath.
Takuro Iwata, Takashi Katagiri, Yuji Matsuura   +2 more
doaj   +1 more source

The Cosmic Origins Spectrograph and the Future of Ultraviolet Astronomy [PDF]

, 2009
I describe the capabilities of the Cosmic Origins Spectrograph, scheduled for May 2009 installation on the Hubble Space Telescope. With a factor-of-ten increase in far-UV throughput for moderate resolution spectroscopy, COS will enable a range of ...
George Sonneborn, H. Warren Moos, J. Michael Shull, Michael E. Van Steenberg, William P. Blair   +4 more
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IRTF Observations of White Dwarfs with Possible Near-Infrared Excess [PDF]

, 2009
Near-infrared photometry and spectroscopy is obtained for a heterogeneous sample of nearby white dwarfs with possible excess flux as identified primarily in the Two Micron All Sky Survey. Among the sample of 43 stars are a number of white dwarfs that are
Adelman-McCarthy, Beauchamp, Becklin, Bergeron, Bergeron, Bergeron, Bergeron, Bergeron, Bergeron, Bergeron, Bochanski, Burleigh, Burleigh, Carpenter, Catalán, Copenhagen University Observatory, Cushing, DENIS Consortium, Dobbie, Downes, Dreizler, Dufour, Dupuis, Eggen, Eggen, Eisenstein, Farihi, Farihi, Farihi, Farihi, Farihi, Green, Green, Greenstein, Greenstein, Hagen, Holberg, Homeier, J. Farihi, Jordan, Jura, Jura, Kalirai, Kawka, Kilic, Kilic, Kilkenny, Kirkpatrick, Kleinman, Koester, Koester, Koester, Koester, Liebert, Liebert, Liebert, Liebert, Liebert, Lisker, Massey, McCook, McCook, Monet, Morales-Rueda, Napiwotzki, Nelemans, Pauli, Probst, Putney, Raymond, Rayner, Rebassa-Mansergas, Reid, Salim, Schmidt, Schmidt, Schmidt, Silvestri, Sion, Skrutskie, Steele, van Altena, Vennes, von Hippel, Voss, Wachter, Wellhouse, Williams, Wolff, Zacharias, Zacharias, Zuckerman, Zuckerman, Zuckerman   +93 more
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Spectropolarimetry for Discerning Geometry and Structure in Circumstellar Media of Hot Massive Stars

Galaxies
Spectropolarimetric techniques are a mainstay of astrophysical inquiry, ranging from Solar System objects to the Cosmic Background Radiation. This review highlights applications of stellar polarimetry for massive hot stars, particularly in the context of
Richard Ignace, Kenneth G. Gayley, Roberto Casini, Paul Scowen, Christiana Erba, Jeremy Drake   +5 more
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Scientific Objectives for UV/Visible Astrophysics Investigations: A Summary of Responses by the Community (2012) [PDF]

, 2013
Following several recommendations presented by the Astrophysics Decadal Survey 2010 centered around the need to define "a future ultraviolet-optical space capability," on 2012 May 25, NASA issued a Request for Information (RFI) seeking persuasive ...
Benford, Dominic J., Neff, Susan G., Perez, Mario R., Scowen, Paul A.   +3 more
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Methods for preliminary determination of pemetrexed in macromolecular drug-carrier systems

Acta Pharmaceutica, 2016
Pemetrexed (PMX) is an antifolate drug utilized in the treatment of non-small cell lung cancer. For studies of potential macromolecular carriers for PMX, fast and precise methods were developed to determine the bound and free drug contained in ...
Ciekot Jarosław, Goszczyński Tomasz Marek, Boratyński Janusz   +2 more
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Autler–Townes splitting in the trap-loss fluorescence spectroscopy due to single-step direct Rydberg excitation of cesium cold atomic ensemble

AIP Advances, 2023
We experimentally investigate trap-loss spectra of the cesium 6S1/2(F = 4) → 71P3/2 Rydberg transition by combining the cesium atomic magneto-optical trap with the narrow-linewidth, continuously tunable 318.6 nm ultraviolet laser. Specifically, the atoms
Xin Wang, Xiaokai Hou, Feifei Lu, Rui Chang, Lili Hao, Wenjing Su, Jiandong Bai, Jun He, Junmin Wang   +8 more
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Visible and Ultraviolet Laser Spectroscopy of ThF

, 2019
The molecular ion ThF$^+$ is the species to be used in the next generation of search for the electron's Electric Dipole Moment (eEDM) at JILA. The measurement requires creating molecular ions in the eEDM sensitive state, the rovibronic ground state $^3 ...
Cheng, Lan, Cornell, Eric A., Field, Robert W., Gresh, Daniel N., Ng, Kia Boon, Ye, Jun, Zhou, Yan   +6 more
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Ultraviolet-visible spectroscopy of graphene oxides

AIP Advances, 2012
Dispersions of few-layer (1-3 layers), multi-layer (4-10 layers) and thick-layer (>10 layers) graphene oxide (GO) were prepared by a modified Hummers method with different mass ratios of KMnO4 to graphite.
Qi Lai, Shifu Zhu, Xueping Luo, Min Zou, Shuanghua Huang   +4 more
doaj   +1 more source