Browsing Mathematics, Statistics, and Physics by Title
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FischerTropsch Synthesis: effect of potassium on activity and selectivity for oxide and carbide Fe catalysts
(Springer US, 201311)The effect of potassium on oxides and carbides of iron for FischerTropsch synthesis (FTS) was investigated by pretreating Fe3O4 and Kpromoted Fe catalysts with different gases (H2/H2O and CO). A freshly activated sample ... 
FischerTropsch synthesis: Effects of hydrohalic acids in syngas on a precipitated iron catalyst
(American Chemical Society, 201505)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 ... 
FischerTropsch synthesis: morphology, phase transformation, and carbonlayer growth of ironbased catalysts
(John Wiley & Sons, Inc., 201407)The morphological, phase transformations and carbonlayer growth for unpromoted and Kpromoted iron catalysts were investigated over time during FischerTropsch synthesis. Catalysts were activated in CO for 24 h, which ... 
Fischer–Tropsch synthesis: Mössbauer investigation of iron containing catalysts for hydrogenation of carbon dioxide
(Elsevier, 20120525)CO2 hydrogenation was investigated with a doubly promoted (Cu, K) silica containing iron catalyst. Hägg carbide (χFe5C2) is the dominant phase obtained under CO activation conditions at 543 K and 0.1 MPa and it was stable ... 
Fixed points and determining sets for holomorphic selfmaps of a hyperbolic manifold
(University of Michigan. Dept. of Mathematics, 2007)We study fixed point sets for holomorphic automorphisms (and endomorphisms) on complex manifolds. The main object of our interest is to determine the number and configuration of fixed points that forces an automorphism ... 
A Fornberglike method for the numerical conformal mapping of bounded multiply connected domains
(Wichita State University, 200905)A new Fornberglike method is presented for computing conformal maps from the interior of the unit disk with m1 circular holes to the interior of a smooth closed curve with m1 holes bounded by smooth curves. The method ... 
A Fornberglike method for the numerical conformal mapping of bounded multiply connected domains
(Wichita State University. Graduate School, 20100423)A new Fornberglike method is presented for computing conformal maps from the interior of the unit disk with m>1 circular holes to the interior of a smooth closed curve with m holes bounded by smooth curves. The method is ... 
Forty two problems of first degree from Diophantus’ Arithmetica
(Wichita State University, 201012)This work brings to the audience Diophantus' problems of first degree in a literal word for word English translation from Ver Eecke's French translation of Arithmetica. In addition, these problems are accompanied by ... 
From the colormagnitude diagram of omega centauri and (super) asymptotic giant branch stellar models to a galactic plane passage gas purging chemical evolution scenario
(IOP Publishing, 20121001)We have investigated the colormagnitude diagram of omega Centauri and find that the blue main sequence (bMS) can be reproduced only by models that have a helium abundance in the range Y = 0.350.40. To explain the faint ... 
Geometry of horizontal bundles and connections
(Wichita State University, 201405)An Ehresmann connection on a fiber bundle pi: E > M is defined by prescribing a suitable horizontal subbundle H of the tangent bundle piT: TE > E. For a horizontal bundle to be suitable, it must have a property called ... 
Geometry of nonlinear connections
(Elsevier Science B.V., Amsterdam, 20040828)We show that locally diffeomorphic exponential maps can be defined for any secondorder differential equation, and give a (possibly nonlinear) covariant derivative for any (possibly nonlinear) connection. We introduce ... 
Growth rate and existence of solutions to Dirichlet problems for prescribed mean curvature equations on unbounded domains
(Texas State University  San Marcos, 2008)We prove growth rate estimates and existence of solutions to Dirichlet problems for prescribed mean curvature equation on unbounded domains inside the complement of a cone or a parabola like region in Rn (n 2). The ... 
Hspaces, loop spaces and the space of positive scalar curvature metrics on the sphere
(Mathematical Sciences Publishers, 20141002)For dimensions n >= 3, we show that the space Riem(+)(Sn) of metrics of positive scalar curvature on the sphere Sn is homotopy equivalent to a subspace of itself which takes the form of an Hspace with a homotopy ... 
The HANOHANO Detector and Ongoing Research and Development
(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 geoneutrinos to probe the isotope source of the 45 TW of ... 
Higgs boson Mass in GMSB with Messenger–Matter mixing
(Elsevier, 201212)A Higgslike particle with mass of order 125 GeV has been observed by both ATLAS and CMS experiments. This Higgs mass causes sparticle masses in the several to multiTeV range in the simple version of minimal GMSB models. ... 
Higgs boson of mass 125 GeV in gauge mediated supersymmetry breaking models with mattermessenger mixing
(American Physical Society, 20130905)We investigate the effects of messengermatter mixing on the lightest CPeven Higgs boson mass m(h) in gaugemediated supersymmetry breaking models. It is shown that with such mixings m(h) can be raised to about 125 GeV, ... 
A historical overview of connections in geometry
(Wichita State University, 201105)This thesis is an attempt to untangle/clarify the modern theory of connections in Geometry. Towards this end a historical approach was taken and original as well as secondary sources were used. An overview of the most ... 
Holomorphic functions on subsets of C
(Mathematical Society of Japan, 201301)Let Gamma be a Cinfinity curve in C containing 0; it becomes Gamma(theta) after rotation by angle theta about 0. Suppose a Cinfinity function f can be extended holomorphically to a neighborhood of each element of the ... 
Horizontal bundles and connections
(Wichita State University. Graduate School, 20140425)A manifold is a mathematical space that locally resembles standard Euclidean space. In order to study the geometry of such a space, it is necessary to prescribe a connection on the manifold. A connection describes how ...