None

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.

Semi-weekly newspaper from Bastrop, Texas that includes local, state and national news along with extensive advertising.

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.

Semi-weekly newspaper from Burleson, Texas that includes local, state, and national news along with advertising.

A model for calculating the integrated luminosity of beams stored in the Tevatron collider will be presented. The model determines the instantaneous luminosity by calculating the overlap integral of bunched beams passing through the interaction region. The calculation accounts for the variation in beam size due to the beta functions and also for effects due to finite longitudinal emittance and non-zero dispersion in the interaction region. The integrated luminosity is calculated for the beams as they evolve due to processes including collisions and intrabeam scattering. The model has been applied to both the extant and upgraded Tevatron collider, but is not limited to them. The original motivation for developing the computer model was to determine the reduction in luminosity due to beams with non-zero longitudinal emittances. There are two effects: the transverse beam size is increased where the dispersion is non-zero; the finite length of the beam bunch combined with an increasing /beta/ function results in an increased transverse beam size at the ends of the bunch. The derivation of a sufficiently useful analytic expression for the luminosity proved to be intractable. Instead, a numerical integration computer program was developed to calculate the luminosity in the presence of a finite …

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.

None

We present the results of comparisons of performances of several tracking or/and analysis codes. The basic purpose of this program was to assess reliability and accuracy of these codes, i.e. to determine the so-called "error bars" for the predicted values of tunes and other lattice functions as a minimum and, if possible, to discover potential difficulties with underlying physical models in these codes, inadequate algorithms, residual bugs and the like. Not only we have been able to determine the error bars, which for instance for the tunes at dp/p = +1% are Δv$sub x$ = 0.0027, Δv$sub y$ = 0.0010, but also our program has brought about improvements of several codes.

None

Newsletter written for supervisors working at the Convair Division in Fort Worth containing news about events and activities, workplace reminders, and other relevant information.

Recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.

None

None

During this quarter the studies on the selective desulfurization of coal were initiated. Specifically most of our efforts this quarter were place in developing selective reaction chemistries within a supercritical carbon dioxide system that would provide significant desulfurization of the organic matrix of coal. The first system of interest is the possible desulfurization of coal by oxidation with solvated cupric ions. The reaction of copper chloride with sulfur moieties in coal was first studied by Lompa-Krzymien. (As mention in the original proposal). In the case of Lompa-Krzymien's work this reaction was claimed to yield desulfurization rates as high as 95% for Prince Coal from Nova Scotia. Later work by Singh et al. confirmed that coal could be desulfurized by copper chloride but the percentage desulfurization was always lower than that described by LompaKrzymien. Now that we have managed to dissolve the oxidant in a supercritical system, we will search for conditions under which the redox reaction is allowed in the supercritical state. In addition, we will be running parallel reactions of the model coal compounds in the pure liquid modifier to provide a reference for the reactivity of the oxidant in liquids. We will also be looking at the possible …

During this quarter the studies on the selective desulfurization of coal were initiated. Specifically most of our efforts this quarter were place in developing selective reaction chemistries within a supercritical carbon dioxide system that would provide significant desulfurization of the organic matrix of coal. The first system of interest is the possible desulfurization of coal by oxidation with solvated cupric ions. The reaction of copper chloride with sulfur moieties in coal was first studied by Lompa-Krzymien. (As mention in the original proposal). In the case of Lompa-Krzymien`s work this reaction was claimed to yield desulfurization rates as high as 95% for Prince Coal from Nova Scotia. Later work by Singh et al. confirmed that coal could be desulfurized by copper chloride but the percentage desulfurization was always lower than that described by LompaKrzymien. Now that we have managed to dissolve the oxidant in a supercritical system, we will search for conditions under which the redox reaction is allowed in the supercritical state. In addition, we will be running parallel reactions of the model coal compounds in the pure liquid modifier to provide a reference for the reactivity of the oxidant in liquids. We will also be looking at the possible …

A guest artist recital performed at the UNT College of Music Recital Hall.

None

A video of an overview of the intensive english language institute program offered at the University of North Texas.

Weekly newspaper from Jacksboro, Texas that includes local, state, and national news along with extensive advertising.

None

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.