Transonic and supersonic Euler computations of vortex-dominated flow fields about a generic fighter

Flow fields about a generic flighter model were computed using FL057, a 3-D, finite volume Euler code. Computed pressure coefficients, forces, and moments at several Mach numbers (0.6, 0.8, 1.2, 1.4, and 1.6) are compared with wind tunnel data over a wide range of angles of attack in order to determine the applicability of the code for the analysis of fighter configurations. Two configurations were studied, a wing-body and a wing-body-chine. FL057 predicted pressure distributions, forces, and moments well at low angles of attack, at which the flow was fully attached. The FL057 predictions were also accurate for some test conditions once the leading edge vortex became well established. At the subsonic speeds, FL057 predicted vortex breakdown earlier than that seen in the experimental results. Placing the chine on the forebody delayed the onset of bursting and improved the correlation between numerical and experimental data at the subsonic conditions

Psychrometric parameters for accelerated yellowing of burley tobacco

The green-to-yellow phase of an accelerated cure of burley tobacco was examined on a laboratory scale. Nine curing cabinets for small samples (100 leaves) were especially designed for this experiment along with controls which maintained temperature within ± 0.5°F and relative humidity within ± 3 percent. Nine combinations of temperature and relative humidity which covered the range of expected optimum combinations were examined in a 3x3 factorial experiment. Evaluation of each treatment was made after a 60-hour period by matching leaf color with preselected standard Munsell colors, including an optimum yellow. A regression equation was formulated that established a relationship among temperature, relative humidity and color. A curve of the temperature-relative humidity combination for the optimum color was presented. Four additional selected temperature-relative humidity combinations were used in a 60-hour cure to check the regression equation. The equation was found to closely predict the resultant color. The results indicated that burley tobacco can be satisfactorily yellowed in an accelerated bulk cure with color comparable to that found in conventionally cured tobacco. However, an increase in temperature requires a corresponding increase in relative humidity for optimum yellowing. A maximum relative humidity for this phase of the cure appeared to be approximately 90 percent

George W. Bonnell, frontier journalist in the Republic of Texas

Journalists in the Republic of Texas tended to be eccentric, untamed, and unpredictable. George William Bonnell, editor of the Texas Sentinel at Austin in 1840, was no exception. Rumor has it that Bonnell once bit off a man's nose in a fist fight in Mississippi. Yet that same man, who may or may not have maimed the Mississippian, helped organize a society in the Texas capital devoted to caring for widows and orphans of Texans who had fallen in battle. He also wrote about Texas: "Cities are growing up, in places which a few years ago, were only inhabited by the wild beasts, and wilder savages, and civilization and refinement are rapidly taking possession of the wilderness and bringing it under the dominion of man." Journalists in the Republic tended also to be gregarious, restive, and blessed with a multitude of interests. George Bonnell was first a newspaperman, but he was also an Indian fighter, an author, a public official, an adventurer, a participant. He was enthusiastic about Texas and was one of her most eloquent spokesmen. He was not a native. Extraordinary as he was, however, Bonnell did not dominate; he did not overshadow his contemporary journalists by any means. Men such as George Teulon, Samuel Whiting , Gus Tomkins, John Henry Brown, Martin Carroll Wing, and many others -- colorful newspapermen heretofore hardly touched upon by the historian -- lie fallow waiting in Republic of Texas graves for the life-bringing stroke of a writer's pen.Journalis

EGADS: A microcomputer program for estimating the aerodynamic performance of general aviation aircraft

EGADS is a comprehensive preliminary design tool for estimating the performance of light, single-engine general aviation aircraft. The software runs on the Apple Macintosh series of personal computers and assists amateur designers and aeronautical engineering students in performing the many repetitive calculations required in the aircraft design process. The program makes full use of the mouse and standard Macintosh interface techniques to simplify the input of various design parameters. Extensive graphics, plotting, and text output capabilities are also included

JLFC 001C John L. LeFlore 12-15-1970

Acc #: 270; JLFC 001C In this recording, John L. LeFlore is interviewed by Margaret Lavorne and Melton McLaurin to discuss the Civil Rights Movement and the history of Mobile, Alabama. The interview begins with Mr. LeFlore observing that African Americans could not take city and county civil service examinations in Mobile County, unconstitutionally limiting their employment options. He relates the work that he and other activists undertook to establish more equitable hiring practices and access to training opportunities, particularly in Mobile. Mr. LeFlore also discusses his work with the Mobile Housing Board, and describes what he views as the benefits of urban renewal to the Black community as well as some negative impacts, and the challenges of attempting to improve Black people’s access to better housing in the face of white flight. He offers some observations on the food stamp program, and some ruminations on the effects of the gubernatorial administration of George Wallace in Alabama

JLFC 001D John L LeFlore 10-9-1972

Acc #: 270; JLFC 001D In this recording, John L. LeFlore is interviewed by Melton McLaurin to discuss the Civil Rights Movement and the history of Mobile, Alabama. The interview begins with Mr. LeFlore discussing his activities with the Mobile branch of the NAACP in the 1940s, including the fight to create equal work training opportunities during wartime, and racial equality in voter registration

Max Dose Opioids: How High Can You Go?

Learning Objectives: Describe the rationale for the belief that opioids have no maximum dose Describe the data supporting the rationale that high doses of opioids increase toxicity Describe the data supporting the rationale that high doses of opioids do not improve outcomes Identify potential safety concerns with patients taking high doses of opioid