Rognes and Weibel used Voevodsky’s work on the Milnor conjecture to deduce the strong Dwyer-Friedlander form of the Lichtenbaum-Quillen conjecture at the prime 2. In consequence (the 2-completion of) the classifying space for algebraic K-theory of the integers Z[1/2] can be expressed as a fiber product of well-understood spaces BO and BGL(F3) over BU. Similar results are now obtained for Hermit...

Previous researches have examined the emission and management of heavy metals from municipal solid waste incinerations for compliances with regulations, and also, to address the concerns on various environmental issues. However, the size distribution of heavy metals in bottom ash has not been addressed to such extent yet. This study investigated the size distribution of bottom ash and also the ...

In this thesis the electron ionization of a number of small gas phase molecules is investigated using pulsed time-of-flight mass spectrometry coupled with a 2-D ion coincidence technique. The simultaneous acquisition of conventional TOF mass spectra and ion coincidence mass spectra, enables fragment ions formed by dissociative single, double, and triple ionization, to be distinguished and quant...

Broadband ultraviolet absorption spectroscopy is employed to measure absolute number density of C2 and CH radicals in the boundary layer of an atmospheric DC plasma assisted chemical vapor deposition (CVD) system. High spatial resolution (125 μm) is achieved by using a spatial filter and a ultra-bright argon mini-arc light source. The spectra of D Σu←X Σg electronic transition of C2 and C Σ←X ∏...

Hydrogen radio frequency (RF) discharge was studied by optical emission spectroscopy and actinometry. The main aim of this work was the comparison of RF discharges at 2 frequencies – 13.56 MHz and 27 MHz as sources of atomic hydrogen. The power delivered to discharge was 30 W. The concentration of atomic hydrogen was determined by actinometric method in the 200 – 600 Pa pressure range with 5% a...

The paper provides a description of the analysis of a subway system (track-in-tunnel) by using FEM analysis and comparing to classical analytical approaches by Carson, Pollaczek, Bickford and Tylavsky. Reviews of methods to determine self and mutual impedance for electrified railroads are provided. These methods include frequency response and are directly applicable to a three-rail track DC tra...

Graphene nanoribbons (GNRs), as an emerging class of material, hold great potential for the future high speed and low power electronic and spintronic devices. The fabrication of GNRs is of the utmost interest in terms of graphene based device research. Chemical narrowing of GNRs by oxidation is a promising technique in producing nanoribbons of desired widths. In this article, we hope to elucida...

In this paper we prove several new lower bounds on the maximum number of leaves of a spanning tree of a graph related to its order, independence number, local independence number, and the maximum order of a bipartite subgraph. These new lower bounds were conjectured by the program Graffiti.pc, a variant of the program Graffiti. We use two of these results to give two partial resolutions of conj...

Recent lattice simulation studies of heavy-quark hybrid mesons in which the quark and antiquark are bound together by an excited gluon field are summarized. Hybrid mesons are states in which a valence quark and an antiquark are bound by an excited gluon field. Interest in such states has been recently sparked by observations of resonances with exotic 1 quantum numbers[1]. In fact, the proposed ...