Preliminary flight-determined subsonic lift and drag characteristics of the X-29A forward-swept-wing airplane

The X-29A subsonic lift and drag characteristics determined, met, or exceeded predictions, particularly with respect to the drag polar shapes. Induced drag levels were as great as 20 percent less than wind tunnel estimates, particularly at coefficients of lift above 0.8. Drag polar shape comparisons with other modern fighter aircraft showed the X-29A to have a better overall aircraft aerodynamic Oswald efficiency factor for the same aspect ratio. Two significant problems arose in the data reduction and analysis process. These included uncertainties in angle of attack upwash calibration and effects of maneuver dynamics on drag levels. The latter problem resulted from significantly improper control surface automatic camber control scheduling. Supersonic drag polar results were not obtained during this phase because of a lack of engine instrumentation to measure afterburner fuel flow

A Method to Unambiguously Determine the Parity of the Theta+ Pentaquark

With the recent discovery of the $\Theta(1540)$ pentaquark, the question of its parity is paramount since this will constrain the correct description of its internal structure. We show that the measurement of the spin singlet and triplet cross sections for the reaction $\vec{p}\vec{p} \to \Sigma^+ \Theta^+$ will unambiguously determine the parity of the $\Theta^+$.Comment: 3 page

Sidney M. Jourard and Ted Landsman, Healthy Personality: an Approach from the Viewpoint of Humanistic Psychology

Book review by Thomas Hicks, professor of Psychology and Religious Studies at Sacred Heart University. Jourard, Sidney M. and Ted Landsman. Healthy Personality: an Approach from the Viewpoint of Humanistic Psychology. 4th ed. New York: Macmillan, 1980

Surfactant aspects of corrosion inhibition

This thesis is concerned with investigating the surfactant aspects of corrosion inhibition. Corrosion inhibitors are of great industrial importance because they are a relatively inexpensive and easily applicable method of protecting oil pipelines against internal corrosion. The performance of corrosion inhibitors is known to depend upon the prevailing conditions within the pipeline.We have used a range of experimental techniques to study corrosion of steel surfaces, adsorption of corrosion inhibitors and the behaviour of inhibitors in mixtures of oil and water in order to understand more about the factors which affect the performance of corrosion inhibitors under oil field conditions. Firstly, electrochemical and weight-loss measurements were used to measure the corrosion rate of steel immersed in aqueous environments under atmospheric conditions and in the presence of dissolved carbon dioxide and hydrogen sulphide. The measurements were repeated in the presence of dodecylbenzyldimethylammonium chloride and I-aminoethyl-2-(8- heptadecenyl)-2-imidazoline acetate, which are thought of as model corrosion inhibitors. Both surfactants were found to effectively reduce the corrosion rate of steel when the dissolved gas was hydrogen sulphide, but were found to increase the corrosion rate in some aerated and carbonated environments.The optical technique ellipsometry has been used to study the adsorption of dodecylbenzyldimethylammonium chloride at the steel-water interface. We have determined the thickness of the surfactant film adsorbed from aqueous solution in the absence of electrolyte. The results are consistent with the formation of a monolayer at inhibitor concentrations close to the critical micelle concentration and possible multilayer formation at higher concentrations. Determination of inhibitor film thickness has not been possible in the presence of electrolyte and corrosive dissolved gases which cause rapid corrosion of the steel surface. The technique has been employed subsequently to study the initial stages of corrosion in the presence and absence of dodecylbenzyldimethylammonium chloride. Scanning electron microscopy and elemental analysis have also been used to examine the changes which occur to the steel surface during corrosion. These results show that the optical properties of the steel surface undergo changes as the steel is attacked by corrosive aqueous solutions and that dodecylbenzyldimethylammonium chloride can increase the rate of these changes or completely suppress them, depending on the nature of the dissolved gas present.Finally, we have investigated the phase behaviour of alkylbenzyldimethylammonium chloride and 1-aminoethyl-2-(8-heptadecenyl)-2- imidazoline acetate using equilibrium partitioning and emulsion phase inversion methods. The results show that variations in common oil field variables, such as temperature, electrolyte concentration and oil type, can lead to the consumption of the aggregated form of water-soluble corrosion inhibitors by partitioning to the oil phase. The results are discussed in terms of the effect of these variables upon the effective geometry of the inhibitor within the monolayer of the aggregates. We have also performed electrochemical corrosion rate measurements in systems containing oil and water, under conditions which cause virtually all of the inhibitor to exist in the oil phase. The results suggest that partitioning of the aggregated form of corrosion inhibitors from water to oil does not adversely affect corrosion inhibition in the aqueous phase

The Sabbath Rediscovered

The author celebrates a renewed appreciation of values that underlie the observance of the Sabbath. Thomas Hicks\u27 efforts to celebrate a more meaningful Sabbath revolve around some motifs rediscovered from the Jewish tradition

A Return to Updike\u27s Post-Pill Paradise

Thomas H. Hicks, professor of Psychology and Religious Studies at Sacred Heart University, presents an interpretation of John Updike\u27s novels Couples and Marry Me , and his book Self-Consciousness , a collection of autobiographical pieces. Prof. Hicks discusses classical and Christian themes in these works, adultery as a form of human anguish, sex as a substitute for religion, and the moral transitioning happening in the time the books were written

Updike\u27s Rabbit Novels: An American Epic

Critical study of John Updike\u27s four Rabbit novels

“Undone”: a Novella Using Othello to Discuss Post-Traumatic Stress Disorder (PTSD) and Support

Amongst the discourse about Veterans, Post-Traumatic Stress Disorder (PTSD) has become a prevalent, if not dominant, theme. Often this discussion is accompanied by themes articulated in the phrase “Support Our Troops” and framed in the context of the military history and origins related to PTSD. But what often gets overlooked and overshadowed are the correlation between support and treatment or prevention of PTSD, the inadequacy of gestures framed as supporting our troops that do very little to actually support them, non-combat/ non-military PTSD, stigmas of PTSD that become an obstacle to getting treatment, and extreme portrayals of PTSD in fiction. Because of these factors, I wrote the novella “Undone” and used Shakespeare’s Othello as a lens to examine these narratives