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Journal articles on the topic 'Spectroscopic final states'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 February 2022

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1

Kirchhuebel, Tino, Oliver L. A. Monti, Toshiaki Munakata, Satoshi Kera, Roman Forker, and Torsten Fritz. "The role of initial and final states in molecular spectroscopies." Physical Chemistry Chemical Physics 21, no. 24 (2019): 12730–47. http://dx.doi.org/10.1039/c8cp07318j.

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Interpreting experimental spectra of thin films of organic semiconductors is challenging, and understanding the relationship between experimental data obtained by different spectroscopic techniques requires a careful consideration of the initial and final states for each process.

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2

McCarthy, IE. "Electron Momentum Spectroscopy." Australian Journal of Physics 39, no. 5 (1986): 587. http://dx.doi.org/10.1071/ph860587.

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For sufficiently high electron energies (greater than a few hundred eV) and sufficiently low recoil momenta Oess than a few atomic units) the differential cross section for the non-coplanar symmetric (e,2e) reaction on an atom or molecule depends on the target and ion structure only through the target-ion overlap. Experimental criteria for the energy and momentum are that the apparent structure information does not change when the energy and momentum are varied. The plane-wave impulse approximation is a sufficient description of the reaction mechanism for determining spherically averaged squar

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3

Tao, Zhensheng, Cong Chen, Tibor Szilvási, et al. "Direct time-domain observation of attosecond final-state lifetimes in photoemission from solids." Science 353, no. 6294 (2016): 62–67. http://dx.doi.org/10.1126/science.aaf6793.

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Attosecond spectroscopic techniques have made it possible to measure differences in transport times for photoelectrons from localized core levels and delocalized valence bands in solids. We report the application of attosecond pulse trains to directly and unambiguously measure the difference in lifetimes between photoelectrons born into free electron–like states and those excited into unoccupied excited states in the band structure of nickel (111). An enormous increase in lifetime of 212 ± 30 attoseconds occurs when the final state coincides with a short-lived excited state. Moreover, a strong

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4

SCHEIPERS, A., and H. MERZ. "CORRELATION EFFECTS IN NiO: COMPARISON OF NEAR THRESHOLD EXCITATION SPECTROSCOPIES." International Journal of Modern Physics B 07, no. 01n03 (1993): 337–40. http://dx.doi.org/10.1142/s0217979293000706.

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At UHV-cleaved single-crystal NiO(100) surfaces core electron energy loss spectra (CEELS) at low primary energy and soft x-ray appearance potential spectra (SXAPS) have been measured at the oxygen K-threshold: the near-edge fine-structures have been investigated up to 40 eV above the threshold. Both spectroscopic methods probe in different ways the structure of the lowest empty states. CEELS is closely related to x-ray absorption spectroscopy (XAS), in both cases the excited final configuration consists of one core hole and one additional electron near the Fermi level E F. In APS we can study

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5

Rezvani, S. Javad, Nicola Pinto, Roberto Gunnella, Alessandro D’Elia, Augusto Marcelli, and Andrea Di Cicco. "Engineering Porous Silicon Nanowires with Tuneable Electronic Properties." Condensed Matter 5, no. 4 (2020): 57. http://dx.doi.org/10.3390/condmat5040057.

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Structural and electronic properties of silicon nanowires with pre-designed structures are investigated. Wires with distinct structure were investigated via advanced spectroscopic techniques such as X-ray absorption spectroscopy and Raman scattering as well as transport measurements. We show that wire structures can be engineered with metal assisted etching fabrication process via the catalytic solution ratios as well as changing doping type and level. In this way unique well-defined electronic configurations and density of states are obtained in the synthesized wires leading to different char

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6

WICK, FELIX. "RESULTS ON CHARM BARYON SPECTROSCOPY FROM TEVATRON." International Journal of Modern Physics: Conference Series 02 (January 2011): 163–67. http://dx.doi.org/10.1142/s2010194511000742.

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Due to an excellent mass resolution and a large amount of available data, the CDF experiment, located at the Tevatron proton-antiproton accelerator, allows the precise measurement of spectroscopic properties, like mass and decay width, of a variety of states. This was exploited to examine the first orbital excitations of the Λc baryon, the resonances Λc(2595) and Λc(2625), in the decay channel [Formula: see text], as well as the Λc spin excitations Σc(2455) and Σc(2520) in its decays to [Formula: see text] and [Formula: see text] final states in a data sample corresponding to an integrated lum

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7

Ya Amusia, M., and AS Kheifets. "How to Explain the Difference between (?, e) and (e, 2e) Spectroscopic Factors." Australian Journal of Physics 44, no. 3 (1991): 293. http://dx.doi.org/10.1071/ph910293.

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It is shown that the relative line intensity of the main and satellite lines in the atomic shell ionisation spectrum depends significantly on the mechanism responsible for the removal of the electron. This dependence is explained by the influence of many-electron correlations in the initial state of the atom to be ionised, which is considerable when the momentum transferred to the ion is large. This is the case for photoionisation, i.e. the (y, e) reaction under the condition of large photon energy. On the contrary, in electron momentum spectroscopy, such as the symmetric noncoplanar (e, 2e) r

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8

Syme, Anna-Maree, and Laura K. McKemmish. "Full spectroscopic model and trihybrid experimental-perturbative-variational line list for CN." Monthly Notices of the Royal Astronomical Society 505, no. 3 (2021): 4383–95. http://dx.doi.org/10.1093/mnras/stab1551.

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ABSTRACT Accurate line lists are important for the description of the spectroscopic nature of small molecules. While a line list for CN (an important molecule for chemistry and astrophysics) exists, no underlying energy spectroscopic model has been published, which is required to consider the sensitivity of transitions to a variation of the proton-to-electron mass ratio. Here we have developed a Duo energy spectroscopic model as well as a novel hybrid style line list for CN and its isotopologues, combining energy levels that are derived experimentally (Marvel), using the traditional/perturbati

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9

Pantazis, Dimitrios A. "The S3 State of the Oxygen-Evolving Complex: Overview of Spectroscopy and XFEL Crystallography with a Critical Evaluation of Early-Onset Models for O–O Bond Formation." Inorganics 7, no. 4 (2019): 55. http://dx.doi.org/10.3390/inorganics7040055.

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The catalytic cycle of the oxygen-evolving complex (OEC) of photosystem II (PSII) comprises five intermediate states Si (i = 0–4), from the most reduced S0 state to the most oxidized S4, which spontaneously evolves dioxygen. The precise geometric and electronic structure of the Si states, and hence the mechanism of O–O bond formation in the OEC, remain under investigation, particularly for the final steps of the catalytic cycle. Recent advances in protein crystallography based on X-ray free-electron lasers (XFELs) have produced new structural models for the S3 state, which indicate that two of

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10

Grey, John K., Ian S. Butler, and Christian Reber. "Temperature- and pressure-dependent luminescence spectroscopy on the trans-[ReO2(pyridine)4]+ complex Analysis of vibronic structure, luminescence energies, and bonding characteristics." Canadian Journal of Chemistry 82, no. 6 (2004): 1083–91. http://dx.doi.org/10.1139/v04-031.

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Resolved vibronic structure in electronic spectra provides a detailed view into how molecular structure changes after absorption or emission of a photon. We report temperature- and pressure-dependent luminescence spectra of trans-[ReO2(pyridine)4]I. Low-temperature spectra reveal long vibronic progressions in the totally symmetric O=Re=O (907 cm1) and Re-pyridine (211 cm1) stretching modes, indicating large structural displacements along these normal coordinates. The luminescence band maximum is at ca. 15 500 cm1. Room-temperature spectra are somewhat less-resolved; however, intervals close

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11

Rinchiuso, Lucia. "Latest results on dark matter searches with H.E.S.S." EPJ Web of Conferences 209 (2019): 01023. http://dx.doi.org/10.1051/epjconf/201920901023.

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The nature of Dark Matter (DM) is one of the most debated questions of contemporary physics. Ground-based arrays of Cherenkov telescopes such as the High Energy Spectroscopic System (H.E.S.S.) search for DM signatures through the detection of Very-High-Energy (VHE, E > 100 GeV) gamma-rays. DM particles could selfannihilate in dense environments producing VHE γ-rays in the final states that could be eventually detected by H.E.S.S.. The H.E.S.S. observation strategy for DM search focuses towards the Galactic Centre (GC) region and nearby dwarf galaxy satellites of the Milky Way. The GC datase

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12

Varandas, A. J. C., and C. M. R. Rocha. "C n ( n =2−4): current status." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 376, no. 2115 (2018): 20170145. http://dx.doi.org/10.1098/rsta.2017.0145.

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The major aspects of the C 2 , C 3 and C 4 elemental carbon clusters are surveyed. For C 2 , a brief analysis of its current status is presented. Regarding C 3 , the most recent results obtained in our group are reviewed with emphasis on modelling its potential energy surface which is particularly complicated due to the presence of multiple conical intersections. As for C 4 , the most stable isomeric forms of both triplet and singlet spin states and their possible interconversion pathways are examined afresh by means of accurate ab initio calculations. The main strategies for modelling the gro

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13

Dolcet, Paolo, Florian Maurer, Maria Casapu, and Jan-Dierk Grunwaldt. "Insights into the Structural Dynamics of Pt/CeO2 Single-Site Catalysts during CO Oxidation." Catalysts 11, no. 5 (2021): 617. http://dx.doi.org/10.3390/catal11050617.

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Despite their high atomic dispersion, single site catalysts with Pt supported on CeO2 were found to have a low activity during oxidation reactions. In this study, we report the behavior of Pt/CeO2 single site catalyst under more complex gas mixtures, including CO, C3H6 and CO/C3H6 oxidation in the absence or presence of water. Our systematic operando high-energy resolution-fluorescence-detected X-ray absorption near-edge structure (HERFD-XANES) spectroscopic study combined with multivariate curve resolution with alternating least squares (MCR-ALS) analysis identified five distinct states in th

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14

Zavyalova, Elena, Valeriia Legatova, Rugiya Alieva, et al. "Putative Mechanisms Underlying High Inhibitory Activities of Bimodular DNA Aptamers to Thrombin." Biomolecules 9, no. 2 (2019): 41. http://dx.doi.org/10.3390/biom9020041.

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Nucleic acid aptamers are prospective molecular recognizing elements. Similar to antibodies, aptamers are capable of providing specific recognition due to their spatial structure. However, the apparent simplicity of oligonucleotide folding is often elusive, as there is a balance between several conformations and, in some cases, oligomeric structures. This research is focused on establishing a thermodynamic background and the conformational heterogeneity of aptamers taking a series of thrombin DNA aptamers having G-quadruplex and duplex modules as an example. A series of aptamers with similar m

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15

NERLING, FRANK. "COMPASS HADRON SPECTROSCOPY — FINAL STATES INVOLVING NEUTRALS AND KAONS." International Journal of Modern Physics A 26, no. 03n04 (2011): 766–68. http://dx.doi.org/10.1142/s0217751x11052785.

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The COMPASS experiment at CERN is well designed for light-hadron spectroscopy with emphasis on the detection of new states, in particular the search for JPC-exotic states and glueballs. We have collected data with 190 GeV/c charged hadron beams on a liquid hydrogen and nuclear targets in 2008/09. The spectrometer features good coverage by electromagnetic calorimetry and a RICH detector further provides π K separation, allowing for studying final states involving neutral particles like π0 or η as well as hidden strangeness, respectively. We discuss the status of ongoing analyses with specific f

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16

Kreitzman, S. R., T. Pfiz, S. Sun-Mack та ін. "Final states in Si and GaAs via RF μSR spectroscopy". Hyperfine Interactions 64, № 1-4 (1991): 561–66. http://dx.doi.org/10.1007/bf02396190.

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17

Artamonov, O. M., S. N. Samarin, and G. Stefani. "Manifestation of the final states in completely momentum resolved coincidence spectroscopy." Journal of Electron Spectroscopy and Related Phenomena 122, no. 2 (2002): 123–37. http://dx.doi.org/10.1016/s0368-2048(01)00345-0.

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18

Lermer, N., B. R. Todd, N. M. Cann, et al. "Electron momentum spectroscopy ofH2andD2: Ionization to ground and excited final states." Physical Review A 56, no. 2 (1997): 1393–402. http://dx.doi.org/10.1103/physreva.56.1393.

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19

Long, Jingjunjiao, Ashveen Nand, and Sudip Ray. "Application of Spectroscopy in Additive Manufacturing." Materials 14, no. 1 (2021): 203. http://dx.doi.org/10.3390/ma14010203.

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Additive manufacturing (AM) is a rapidly expanding material production technique that brings new opportunities in various fields as it enables fast and low-cost prototyping as well as easy customisation. However, it is still hindered by raw material selection, processing defects and final product assessment/adjustment in pre-, in- and post-processing stages. Spectroscopic techniques offer suitable inspection, diagnosis and product trouble-shooting at each stage of AM processing. This review outlines the limitations in AM processes and the prospective role of spectroscopy in addressing these ch

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20

Artamonov, O. M., S. N. Samarin, and G. Stefani. "Corrigendum to “Manifestation of the final states in completely momentum resolved coincidence spectroscopy”." Journal of Electron Spectroscopy and Related Phenomena 125, no. 2 (2002): 157. http://dx.doi.org/10.1016/s0368-2048(02)00091-9.

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21

BENITEZ, J. "CHARM SPECTROSCOPY FROM B FACTORIES." International Journal of Modern Physics: Conference Series 02 (January 2011): 158–62. http://dx.doi.org/10.1142/s2010194511000730.

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A brief review of the excited Ds and D mesons is presented. A precision measurement of the Ds1(2536) mass and width parameters is reported by BABAR. Finally, a recent BABAR study of the Dπ and D*π final states shows first observations of the radial excitations of the D0, D*0, and D*+, as well as the L = 2 excited states of the D0 and D+, where L is the orbital angular momentum of the quarks.

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22

SATO, H., Y. KANI, Y. UEDA, et al. "Mn 3p–3d RESONANT INVERSE-PHOTOEMISSION SPECTROSCOPY OF NiAs-TYPE MnTe." Surface Review and Letters 09, no. 01 (2002): 341–45. http://dx.doi.org/10.1142/s0218625x02002245.

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Resonant inverse-photoemission spectra of NiAs-type MnTe have been measured with the tunable photon energy mode at kinetic energies of incident electrons (Ek) in the Mn 3p–3d excitation region. The peak structure at 2.9 eV above the valence-band maximum (VBM) is resonantly enhanced at Ek = 50 eV and is attributed to transitions to d 6 final states with 5 E and 5 T 2 symmetries. The broad structure around 12 eV above the VBM in the spectrum at Ek = 46.5 eV and a shoulder on the higher energy side of the main peak at 2.9 eV in the spectrum at Ek = 50 eV is assigned to [Formula: see text] final s

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23

Bamzai, K. K., Nidhi Kachroo, Vishal Singh, and Seema Verma. "Synthesis, Characterization, and Thermal Decomposition of Pure and Dysprosium Doped Yttrium Phosphate System." Journal of Materials 2013 (April 18, 2013): 1–8. http://dx.doi.org/10.1155/2013/359514.

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Yttrium phosphate and dysprosium doped yttrium phosphate were synthesized from aqueous solutions using rare earth chloride, phosphoric acid, and traces of ammonium hydroxide. The synthesized material was then characterized for their structural investigations using powder X-ray diffraction (XRD) analysis and scanning electron microscopy (SEM) supplemented with energy dispersive X-ray analysis (EDAX). The spectroscopic investigations were carried out using Fourier transform infrared (FTIR) spectroscopy. The thermal stability was studied using differential thermogravimetric analysis (DTA), thermo

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24

McCarthy, Ian E. "The history, development, and future prospects for (e,2e) spectroscopy." Canadian Journal of Physics 74, no. 11-12 (1996): 703–12. http://dx.doi.org/10.1139/p96-102.

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Electron momentum spectroscopy of atoms, molecules, and solids is based on (e,2e) reactions that observe the distribution of recoil momenta for energy-resolved states of the residual system. It is interpreted simply in terms of the momentum-space orbitals of the independent-particle model. The relevant ideas originated in nuclear physics. The earliest experiments observed that strongly excited final states belong to orbital manifolds that extend the independent-particle ideas to correlated systems. Some weakly excited final states do not belong to orbital manifolds. They give sensitive informa

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25

Kirchhuebel, Tino, Satoshi Kera, Toshiaki Munakata, et al. "Role of Initial and Final States in Molecular Spectroscopies: Example of Tetraphenyldibenzoperiflanthene (DBP) on Graphite." Journal of Physical Chemistry C 124, no. 36 (2020): 19622–38. http://dx.doi.org/10.1021/acs.jpcc.0c05448.

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26

Song, Weimin. "Recent results of quarkonium and heavy flavour physics at ATLAS." EPJ Web of Conferences 199 (2019): 04004. http://dx.doi.org/10.1051/epjconf/201919904004.

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Heavy quark spectroscopy and exotic states are studied with the ATLAS detector, mainly through final states containing muon pairs from J/ψ decays. This proceedings will summarise recent results from ATLAS on these topics, including production of quarkonium and heavy flavour, searches for exotic states and measurements of decay properties in open beauty production.

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27

WEYGAND, DENNIS P. "HADRON SPECTROSCOPY AT CLAS." International Journal of Modern Physics A 20, no. 02n03 (2005): 407–16. http://dx.doi.org/10.1142/s0217751x05021579.

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Meson photoproduction was studied at the CEBAF Large Acceptance Spectrometer (CLAS) utilizing a 5.5 GeV/c photon beam incident on a hydrogen target. Here we report on the partial wave analyzes (PWA) performed on the exclusive final states π+π+π-n and K+K-π+n. In addition, CLAS has data on the final state π+π0π-p which will be reported in the near future. The analysis of the π+π+π- system shows clearly the a2(1320), as well as evidence for the a1(1260) and the π2(1670). The π1(1600), previously observed in π-p interactions, is seen very weakly here. In the K+K-π+n channel there is is evidence f

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Yadav, Swati, Subrata Banik, and M. Durga Prasad. "Understanding of the C–H stretch region of infra-red spectroscopy: an analysis of the final state wavefunctions." Physical Chemistry Chemical Physics 23, no. 15 (2021): 9176–88. http://dx.doi.org/10.1039/d0cp01157f.

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29

Reeves-McLaren, Nik, Joanne Sharp, Héctor Beltrán-Mir, W. Mark Rainforth та Anthony R. West. "Spinel–rock salt transformation in LiCoMnO 4− δ". Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 472, № 2185 (2016): 20140991. http://dx.doi.org/10.1098/rspa.2014.0991.

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The transformation on heating LiCoMnO 4 , with a spinel structure, to LiCoMnO 3 , with a cation-disordered rock salt structure, accompanied by loss of 25% of the oxygen, has been followed using a combination of diffraction, microscopy and spectroscopy techniques. The transformation does not proceed by a topotactic mechanism, even though the spinel and rock salt phases have a similar, cubic close-packed oxygen sublattice. Instead, the transformation passes through two stages involving, first, precipitation of Li 2 MnO 3 , leaving behind a Li-deficient, Co-rich non-stoichiometric spinel and, sec

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30

Cummings, Jeffrey D. "Progress and Application of The Initial-Final Mass Relation." Proceedings of the International Astronomical Union 12, S323 (2016): 157–64. http://dx.doi.org/10.1017/s1743921317000977.

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AbstractThe stellar life cycle is dominated by phases such as the hydrogen-burning stage and the remnant white dwarf cooling phase. However, between these two stages, stars dramatically transform themselves by losing the bulk of their mass. Planetary nebulae (PNe) provide a powerful clue to the processes involved in this transformation, but they are very complex. Over the past 15 years, a new wave of imaging and spectroscopy programs have uncovered the remnants of PNe, white dwarfs, in a wide range of well-measured environments. With this we can map the masses and temperatures of the stellar r

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Oset, E., T. Inoue, M. J. Vicente Vacas, A. Ramos, and C. Bennhold. "CHIRAL UNITARY APPROACH TO HADRON SPECTROSCOPY." International Journal of Modern Physics A 18, no. 03 (2003): 387–96. http://dx.doi.org/10.1142/s0217751x03014307.

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The s-wave meson-baryon interaction in the S = -1, S = 0 and S = -2 sectors is studied by means of coupled channels, using the lowest-order chiral Lagrangian and the N/D method or equivalently the Bethe-Salpeter equation to implement unitarity. This chiral approach leads to the dynamical generation of the Λ(1405), Λ(1670) and Σ(1620) states for S = -1, the N*(1535) for S = 0 and the Ξ(1620) for S = -2. We look for poles in the complex plane and extract the couplings of the resonances to the different final states. This allows identifying the Λ(1405) and the Λ(1670) resonances with [Formula: se

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32

Pütz, Jennifer, Albrecht Gillitzer, James Ritman та Tobias Stockmanns. "Study of pp → 𝚵+ ΛK- with the PANDA Detector". EPJ Web of Conferences 241 (2020): 03004. http://dx.doi.org/10.1051/epjconf/202024103004.

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For a deeper insight into the mechanisms of non-perturbative QCD it is essential to understand the excitation pattern of baryons. Up to now only the nucleon excitation spectrum has been subject to systematic experimental studies, while very little is known on excited states of double or triple strange baryons. In studies of antiproton-proton collisions the PANDA experiment is well-suited for a comprehensive baryon spectroscopy program in the multi-strange sector. A large fraction of the inelastic pp cross section is associated to final states with a baryon-antibaryon pair together with additio

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33

Williams, Richard J., James Gardiner, Anders B. Sorensen, et al. "Monitoring the Early Stage Self-Assembly of Enzyme-Assisted Peptide Hydrogels." Australian Journal of Chemistry 66, no. 5 (2013): 572. http://dx.doi.org/10.1071/ch12557.

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The early stages of the self-assembly of peptide hydrogels largely determine their final material properties. Here we discuss experimental methodologies for monitoring the self-assembly kinetics which underpin peptide hydrogel formation. The early stage assembly of an enzyme-catalysed Fmoc-trileucine based self-assembled hydrogel was examined using spectroscopic techniques (circular dichroism, CD, and solution NMR) as well as chromatographic (HPLC) and mechanical (rheology) techniques. Optimal conditions for enzyme-assisted hydrogel formation were identified and the kinetics examined. A lag ti

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MIMURA, K., Y. OKABAYASHI, H. MIZOHATA, et al. "Ce4f STATES IN CePd2Si2 AND CeNi2Si2 INVESTIGATED BY RESONANT PHOTOEMISSION SPECTROSCOPY." Surface Review and Letters 09, no. 02 (2002): 1035–39. http://dx.doi.org/10.1142/s0218625x02003305.

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Ce 4f electronic states in an antiferromagnetic Kondo compound CePd 2 Si 2 and a strong intermediate-valence compound CeNi 2 Si 2 have been investigated by means of high-resolution Ce 4d–4f resonant photoemission spectroscopy at 12 K. The relative intensity of the f5/21 to f7/21 final state in the Ce 4f spectrum for CeNi 2 Si 2 is stronger than the relative intensity for CePd 2 Si 2, indicating that the intensity of Kondo resonance scales the Kondo temperature since the Ce 4f spectrum near the Fermi level dominantly reflects the bulk component. Both Ce 4f spectra have been well fitted by the s

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Lermer, N., B. R. Todd, N. M. Cann, et al. "Electron momentum spectroscopy experiments and calculations for the production of excited states of He+ and." Canadian Journal of Physics 74, no. 11-12 (1996): 748–56. http://dx.doi.org/10.1139/p96-108.

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The (e,2e) cross-section for transitions to the n = 2 final state of He+ and the 2sσg, final state of [Formula: see text] have been measured, relative to the cross-section for the transitions to the respective ground state ions, using a highly sensitive momentum dispersive multichannel electron momentum spectrometer. The experimental results for He are compared with plane wave impulse approximation (PWIA) cross-section calculations carried out using two previously published GI wavefunctions and also with two cross-section calculations based on explicitly correlated wavefunctions with energy er

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Chou, C. W., A. L. Collopy, C. Kurz, et al. "Frequency-comb spectroscopy on pure quantum states of a single molecular ion." Science 367, no. 6485 (2020): 1458–61. http://dx.doi.org/10.1126/science.aba3628.

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Spectroscopy is a powerful tool for studying molecules and is commonly performed on large thermal molecular ensembles that are perturbed by motional shifts and interactions with the environment and one another, resulting in convoluted spectra and limited resolution. Here, we use quantum-logic techniques to prepare a trapped molecular ion in a single quantum state, drive terahertz rotational transitions with an optical frequency comb, and read out the final state nondestructively, leaving the molecule ready for further manipulation. We can resolve rotational transitions to 11 significant digits

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Pereira, Lisiée Manzoli Gonçalves, Maria Eugênia de Oliveira Ferreira, Núbia Natália de Brito, and Indianara Conceição Ostroski. "Cosmetic wastewater primary treatment by fenton process and final polishing adsorption." Revista Eletrônica em Gestão, Educação e Tecnologia Ambiental 24 (January 13, 2020): 13. http://dx.doi.org/10.5902/2236117040701.

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This work aimed to integrate two wastewater treatment technologies, Fenton process as the primary treatment and adsorption aiming achieve maximum removal efficiency and adequation to the environmental and water legislations. Wastewater from a cosmetics industry plant in the metropolitan area of Goiânia (Brazil) was the object of this research. It was analysed environmental parameters as absorbance, total iron, chemical oxygen demand, pH, total phenols, conductivity, H2O2, dissolved oxygen, turbidity, and total solids. They were analyzed in between processes at all stages. The effects of Fe2+ (

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38

Liu, J., and J. M. Cowley. "Valence electron energy loss spectroscopy in reflection geometry." Proceedings, annual meeting, Electron Microscopy Society of America 47 (August 6, 1989): 378–79. http://dx.doi.org/10.1017/s0424820100153865.

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The low energy loss region of a EELS spectrum carries information about the valence electron excitation processes (e.g., collective excitations for free electron like materials and interband transitions for insulators). The relative intensities and the positions of the interband transition energy loss peaks observed in EELS spectra are determined by the joint density of states (DOS) of the initial and final states of the excitation processes. Thus it is expected that EELS in reflection mode could yield information about the perturbation of the DOS of the conduction and valence bands of the bul

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Léger, A., L. Verstraete, L. D'Hendecourt, et al. "The PAH Hypothesis and the Extinction Curve." Symposium - International Astronomical Union 135 (1989): 173–80. http://dx.doi.org/10.1017/s0074180900125203.

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The Polycyclic Aromatic Hydrocarbon (PAH) hypothesis states that a mixture of free PAH molecules is an ubiquitous and abundant component of the interstellar matter. It has been first formulated by Léger and Puget (1984) on the basis of molecular stability that made PAHs good candidates for the very small grains proposed by Sellgren (1984). Then, they obtained strong, although not final, support from spectroscopy.

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LUCHERINI, VINCENZO. "THE FINUDA EXPERIMENT ON DAΦNE". International Journal of Modern Physics A 26, № 03n04 (2011): 420–25. http://dx.doi.org/10.1142/s0217751x11051767.

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FINUDA (FIsica NUcleare a DAɸne) is a spectrometer built to study the interactions of stopped K - on nuclei, with emphasis on spectroscopy and decay of Λ-hypernuclei. Due to the nice performances of the apparatus and its ability to reconstruct secondary vertices, it proved suited to study also final states with several particles (including neutron), hence greatly enlarging the physical topics that could be addressed.

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Lucherini, V. "THE FINUDA EXPERIMENT AT DAɸNE". International Journal of Modern Physics E 19, № 12 (2010): 2514–22. http://dx.doi.org/10.1142/s0218301310017022.

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The FINUDA (FIsica NUcleare a DAɸNE) experiment was built in order to study the interactions of stopped K - on nuclei, with emphasis on Hypernuclear spectroscopy and Hypernuclei decays. Due to the nice performances of the spectrometer, it proved also suited to study, more generally, final states with several particles and able to recostruct secondary vertices, hence greatly enlarging the physical topics that could be addressed.

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Ryabchikov, Dmitry. "Meson spectroscopy at VES and COMPASS." EPJ Web of Conferences 212 (2019): 03010. http://dx.doi.org/10.1051/epjconf/201921203010.

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Diffractive production of π- π- π+ and π- π0 π0 final states is the subject of comprehensive studies performed recently by the VES and the COM-PASS experiments. COMPASS pioneered the application of novel methods of partial-wave analysis: mass-independent PWA inmultiple (m3π, t’)-cells, mass-dependent analysis of spin-density matrices performed simultaneously in all measured t’ bins, the analysis with freed shapes of π+ π- isobars. In addition, COMPASS observed a new narrow state: a1(1420). VES has world-leading data samples on π- π- π+ and π- π0 π0, that yield compatible results and show the p

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Valente de Almeida, Rui, Nuno Matela, and Pedro Vieira. "TomoSim: A Tomographic Simulator for Differential Optical Absorption Spectroscopy." Drones 5, no. 1 (2020): 3. http://dx.doi.org/10.3390/drones5010003.

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TomoSim comes as part of project ATMOS, a miniaturised Differential Optical Absorption Spectroscopy (DOAS) tomographic atmospheric evaluation device, designed to fit a small drone. During the development of the project, it became necessary to write a simulation tool for system validation. TomoSim is the answer to this problem. The software has two main goals: to mathematically validate the tomographic acquisition method; and to allow some adjustments to the system before reaching final product stages. This measurement strategy was based on a drone performing a sequential trajectory and gatheri

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Popov, Yu V., and C. Dal Cappello. "Theoretical developments in (e,2e) studies of excited states and in (e,3e) spectroscopy." Canadian Journal of Physics 74, no. 11-12 (1996): 843–49. http://dx.doi.org/10.1139/p96-120.

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The theory of single and double ionization of atoms deals with one of the most difficult problems in quantum mechanics: the scattering of a few charged particles. A large number of different (e,2e) experiments and theoretical calculations have helped us to understand the main physical mechanisms and their effect on the shape of triple differential cross section (TDCS). Recently the first deeply asymmetric (e,2e) experiments, leaving the residual ion in an excited state (which we indicate in this paper by (e,2e)*), and (e,3e) experiments have been performed. These offer new challenges to the th

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Colavecchia, F. D., G. Gasaneo, and K. V. Rodríguez. "On the orthogonality of initial and final states in (e,3e) and (,2e) collisions." Journal of Electron Spectroscopy and Related Phenomena 161, no. 1-3 (2007): 73–79. http://dx.doi.org/10.1016/j.elspec.2007.03.010.

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Balzarotti, A., M. De Crescenzi, N. Motta, F. Patella та A. Sgarlata. "Electronic structure and charge fluctuations in YBaCu3O7−δ from EELS, XPS and Auger spectroscopies". International Journal of Modern Physics B 02, № 05 (1988): 1135–50. http://dx.doi.org/10.1142/s0217979288001013.

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Electron energy loss, x-ray photoemission and Auger spectroscopies have been used to study the valence states and the Cu 2p and 01 s core levels of YBa 2 Cu 3 O 7−δ as a function of the oxygen concentration δ. Evidence is found of dynamic charge fluctuations on the oxygen sublattice giving rise to a greater concentration of trivalent copper at the Cu(1) sites with respect to that determined by the analysis of neutron diffraction data. The lowest final states configurations of Cu 2+ and Cu 3+ are found to be c3d10L and c3d10L2, respectively, where c and L denote core holes on copper and oxygen

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Milone, Alejandra A. E., and David W. Latham. "The Blue Straggler F190: A Case for Mass Transfer." Symposium - International Astronomical Union 151 (1992): 475–78. http://dx.doi.org/10.1017/s0074180900122764.

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The blue straggler F190 is a member of the old open cluster M67. We argue that F190 may still be in the final stages of the mass transfer that has made it into a blue straggler. We use the turnoff mass of the cluster and the mass function derived from the spectroscopic orbit for F190 to constrain the masses of each member of the binary, both before mass transfer and now. We find that the mass transfer must have been nearly 100 percent efficient.

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Pan, Huilin, and Kopin Liu. "Imaging spectroscopy of the missing REMPI bands of methyl radicals: Final touches on all vibrational frequencies of the 3p Rydberg states." Journal of Chemical Physics 148, no. 1 (2018): 014303. http://dx.doi.org/10.1063/1.5011797.

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Zakharenko, Olena, Vadim V. Ilyushin, Frank Lewen, et al. "Rotational spectroscopy of methyl mercaptan CH332SH at millimeter and submillimeter wavelengths." Astronomy & Astrophysics 629 (September 2019): A73. http://dx.doi.org/10.1051/0004-6361/201935759.

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We present a new global study of the millimeter (mm) wave, submillimeter (sub-mm) wave, and terahertz (THz) spectra of the lowest three torsional states of methyl mercaptan (CH3SH). New measurements have been carried out between 50 and 510 GHz using the Kharkiv mm wave and the Cologne sub-mm wave spectrometers whereas THz spectra records were used from our previous study. The new data, involving torsion–rotation transitions with J up to 61 and Ka up to 18, were combined with previously published measurements and fit using the rho-axis-method torsion–rotation Hamiltonian. The final fit used 124

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Gies, Douglas R. "Masses and other parameters of massive binaries." Symposium - International Astronomical Union 212 (2003): 91–100. http://dx.doi.org/10.1017/s0074180900211686.

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Binary stars provide us with the means to measure stellar mass. Here I present several lists of known O-type stars with reliable mass estimates that are members of eclipsing, double-lined spectroscopic binaries. The masses of young, unevolved stars in binaries are suitable for testing the predictions of evolutionary codes, and there is good agreement between the observed and predicted masses (based upon temperature and luminosity) if the lower temperature scale from line-blanketed model atmospheres is adopted. A final table lists masses for systems in a wide variety of advanced evolutionary st

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