The Department of Mathematics and Statistics and the Department of Physics have merged into the Department of Mathematics, Statistics, and Physics in summer 2011. This collection includes publication dated 2011-. For previous years, look at the Department of Physics collection in SOAR

Recent Submissions

  • The NOvA far detector data acquisition system 

    Biery, Kurt; Guglielmo, Gerald; Habig, Alec; Illingworth, Robert; Kasahara, Susan; Meyer, Holger; Kwarciany, Rick; Lu, Qiming; Lukhanin, Gennadiy; Magill, Stephen; Mathis, Mark; Moren, Adam; Mualem, Leon; Muether, Mathew; Norman, Andrew; Paley, Jonathan; Perevalov, Denis; Piccoli, Luciano; Rechenmacher, Ronald; Shanahan, Peter; Suter, Louise; Waldron, Abigail; Zalesak, Jaroslav (2014)
    Biery, Kurt, et al. "The NOvA Far Detector Data Acquisition System." Journal of Physics: Conference Series 513 no 1. doi:10.1088/1742-6596/513/1/012041.
  • Fischer-Tropsch synthesis: Effect of ammonia in syngas on the Fischer-Tropsch synthesis performance of a precipitated iron catalyst 

    Ma, Wenping; Jacobs, Gary; Sparks, Dennis E.; Pendyala, Venkat Ramana Rao; Hopps, Shelley G.; Thomas, Gerald A.; Hamdeh, Hussein H.; MacLennan, Aimee; Hu, Yongfeng; Davis, Burtron H. (Elsevier B.V., 2015-06)
    The effect of ammonia in syngas on the Fischer-Tropsch synthesis (FTS) reaction over 100Fe/5.1Si/2.0Cu/3.0K catalyst was studied at 220-270 degrees C and 1.3 MPa using a 1-L slurry phase reactor. The ammonia added in syngas ...
  • Fischer-Tropsch synthesis: Effects of hydrohalic acids in syngas on a precipitated iron catalyst 

    Ma, Wenping; Jacobs, Gary; Thomas, Gerald A.; Shafer, Wilson D.; Sparks, Dennis E.; Hamdeh, Hussein H.; Davis, Burton H. (American Chemical Society, 2015-05)
    The current investigation was undertaken to identify limits of hydrohalic acid (HX, X = F, Cl, Br) impurities in syngas and shed light on the mechanism of FIX poisoning of a 100 Fe/5.1 Si/2 Cu/3 K FTS catalyst under ...
  • Stellar models of multiple populations in globular clusters - I. The main sequence of NGC 6752 

    Dotter, Aaron; Ferguson, Jason W.; Conroy, Charlie; Milone, A. P.; Marino, A. F.; Yong, David (Oxford University Press, 2015-01-11)
    We present stellar atmosphere and evolution models of main-sequence stars in two stellar populations of the Galactic globular cluster NGC 6752. These populations represent the two extremes of light-element abundance ...
  • Fischer-Tropsch synthesis: activity and selectivity of chi-Fe5C2 and circle minus-Fe3C carbides 

    Gnanamani, Muthu Kumaran; Hamdeh, Hussein H.; Jacobs, Gary; Shafer, Wilson D.; Sparks, Dennis E.; Keogh, Robert A.; Davis, Burtron H. (American Chemical Society, 2014-08-10)
    Two different iron carbides, Hägg (χ-Fe5C2) and cementite (ϴ-Fe3C) for Fischer-Tropsch synthesis (FTS) was investigated. Both iron carbides were oxidized to Fe3O4 ​during FTS. Hägg carbide (χ-Fe5C2), initially exhibits ...
  • Structural analysis and cations distribution of nanocrystalline Ni1-xZnxFe1.7Ga0.3O4 

    Heiba, Zein K.; Mohamed, Mohamed Bakr; Hamdeh, Hussein H.; Ahmed, M. A. (Elsevier B.V., 2014-09-09)
    Nanostructured Ni1-xZnxFe1.7Ga0.3O4, with x = 0.0, 0.1, 0.2, 0.3, 0.4 and 0.5 were prepared by citrate method and were investigated using X-ray diffraction and Mossbauer spectroscopy. The structure characterized using X-ray ...
  • Fischer-Tropsch synthesis: morphology, phase transformation, and carbon-layer growth of iron-based catalysts 

    Pendyala, Venkat Ramana Rao; Graham, Uschi M.; Jacobs, Gary; Hamdeh, Hussein H.; Davis, Burtron H. (John Wiley & Sons, Inc., 2014-07)
    The morphological, phase transformations and carbon-layer growth for unpromoted and K-promoted iron catalysts were investigated over time during Fischer-Tropsch synthesis. Catalysts were activated in CO for 24 h, which ...
  • Fischer-Tropsch synthesis: deactivation as a function of potassium promoter loading for precipitated iron catalyst 

    Pendyala, Venkat Ramana Rao; Graham, Uschi M.; Jacobs, Gary; Hamdeh, Hussein H.; Davis, Burtron H. (Springer, 2014-10)
    The effect of potassium promoter loading (0, 0.5, 1.0 and 2.0 atomic ratio) on the performance of precipitated iron catalysts was investigated during Fischer-Tropsch synthesis using a continuously stirred tank reactor. ...
  • Fischer-Tropsch synthesis: effect of activation gas after varying Cu promoter loading over K-promoted Fe-based catalyst 

    Pendyala, Venkat Ramana Rao; Jacobs, Gary; Hamdeh, Hussein H.; Shafer, Wilson D.; Sparks, Dennis E.; Hopps, Shelley G.; Davis, Burtron H. (© Springer, 2014-09)
    The effects of activation gas and copper promoter loading on the Fischer-Tropsch synthesis performance of potassium promoted precipitated iron-based catalysts were investigated using a continuously stirred tank reactor. ...
  • Measurement of charged pion production yields off the NuMI target 

    Paley, J. M.; Messier, M. D.; Raja, R.; Akgun, U.; Asner, D. M.; Aydin, G.; Baker, W.; Barnes, P. D. Jr; Bergfeld, T.; Beverly, L.; Bhatnagar, V.; Choudhary, B.; Dukes, E. C.; Duru, F.; Feldman, G. J.; Godley, A.; Graf, N.; Gronberg, J.; Gulmez, E.; Gunaydin, Y. O.; Gustafson, H. R.; Hartouni, E. P.; Hanlet, P.; Heffner, M.; Kaplan, D. M.; Kamaev, O.; Klay, J.; Kumar, A.; Lange, D. J.; Lebedev, A.; Ling, J.; Longo, M. J.; Lu, L. C.; Materniak, C.; Mahajan, S.; Meyer, H.; Miller, D. E.; Mishra, S. R.; Nelson, K.; Nigmanov, T.; Norman, A.; Onel, Y.; Penzo, A.; Peterson, R. J.; Rajaram, D.; Ratnikov, D.; Rosenfeld, C.; Rubin, H.; Seun, S.; Singh, A.; Solomey, Nickolas; Soltz, R. A.; Torun, Y.; Wilson, K.; Wright, D. M.; Wu, Q. K. (American Physical Society, 2014-09)
    The fixed-target Main Injector Particle Production (MIPP) experiment, Fermilab E907, was designed to measure the production of hadrons from the collisions of hadrons of momenta ranging from 5 to 120 GeV/c on a variety of ...
  • Synthesis of highly ordered 30 nm NiFe2O4 particles by the microwave-combustion method 

    Mahmoud, Mohamed H.; Elshahawy, A. M.; Makhlouf, Salah A.; Hamdeh, Hussein H. (Elsevier B.V., 2014-11)
    NiFe2O4 of 30 nm average size was synthesized by microwave combustion and subsequent solid state reaction at 1273 K. The materials were characterized by X-ray diffraction, TEM, vibrating sample magnetometery and Mossbauer ...
  • On the correction of anomalous phase oscillation in entanglement witnesses using quantum neural networks 

    Behrman, Elizabeth C.; Bonde, Richard E. F.; Steck, James E.; Behrman, Joanna F. (IEEE, 2013-10-01)
    Entanglement of a quantum system depends upon the relative phase in complicated ways, which no single measurement can reflect. Because of this, "entanglement witnesses'' (measures that estimate entanglement) are necessarily ...
  • A quantum neural network computes its own relative phase 

    Behrman, Elizabeth C.; Steck, James E. (IEEE, 2013-04-17)
    Complete characterization of the state of a quantum system made up of subsystems requires determination of relative phase, because of interference effects between the subsystems. For a system of qubits used as a quantum ...
  • Cation distribution and dielectric properties of nanocrystalline gallium substituted nickel ferrite 

    Heiba, Zein K.; Mohamed, Mohamed Bakr; Ahmed, M. A.; Moussa, M. A. A.; Hamdeh, Hussein H. (Elsevier B.V., 2014-02-16)
    Nano crystalline NiFe2−xGaxO4, 0.0 ⩽ x ⩽ 1 ferrite was prepared by citrate method. The structural and micro structural evolutions of the nanophase have been studied using X-ray powder diffraction and the Rietveld method. ...
  • Fischer-Tropsch Synthesis: effect of potassium on activity and selectivity for oxide and carbide Fe catalysts 

    Gnanamani, Muthu Kumaran; Hamdeh, Hussein H.; Shafer, Wilson D.; Sparks, Dennis E.; Davis, Burtron H. (Springer US, 2013-11)
    The effect of potassium on oxides and carbides of iron for Fischer-Tropsch synthesis (FTS) was investigated by pretreating Fe3O4 and K-promoted Fe catalysts with different gases (H-2/H2O and CO). A freshly activated sample ...
  • Photometric properties of stellar populations in Galactic globular clusters: the role of the Mg-Al anticorrelation 

    Cassisi, Santi; Mucciarelli, Alessio; Pietrinferni, Adeiano; Salaris, Maurizio; Ferguson, Jason W. (EDP Sciences S A, 2013-06)
    We have computed low-mass stellar models and synthetic spectra for an initial chemical composition that includes the full C-N, O-Na, and Mg-Al abundance anticorrelations observed in second-generation stars belonging to a ...
  • Mossbauer and magnetization studies of nickel ferrite nanoparticles synthesized by the microwave-combustion method 

    Mahmoud, Mohamed H.; Elshahawy, A. M.; Makhlouf, Salah A.; Hamdeh, Hussein H. (ELSEVIER SCIENCE BV, 2013-10)
    Nanocrystalline nickel ferrite was synthesized from its stoichiometric metal nitrates and urea mixtures, using a microwave assisted combustion method. The process was a convenient, inexpensive and an efficient method for ...
  • The HANOHANO Detector and Ongoing Research and Development 

    Cicenas, Blake; Solomey, Nickolas (Elsevier, 2012)
    The Hanohano neutrino detector is a deep sea module that can be submerged to the ocean floor far away from surface radiation. Its Physics goals are the study of geo-neutrinos to probe the isotope source of the 45 TW of ...
  • Multiqubit entanglement of a general input state 

    Behrman, Elizabeth C.; Steck, James E. (Rinton Press, Inc., 2013-01)
    Measurement of entanglement remains an important problem for quantum information. We present the design and simulation of an experimental method for an entanglement indicator for a general multiqubit state. The system can ...

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