Interviews with Ted L. Pfannensteil, Bernie Schaffer, Ruth Jacobs, and Josephine S. Jacobs

Interviews with Ted L. Pfannensteil, Bernie Schaffer, Ruth Jacobs, and Josephine S. Jacobs 00:00:00 - Introduction, Ted L. Pfannensteil of Munjor, Kansas on June 21, 1962 00:00:32 - Song, Brautdusch 00:03:18 - Introduction, Bernie Schaffer of Liebenthal, KS on June 21, 1962 00:03:38 - Song, Du Du Liegst Mir im Herzen 00:04:45 - Song, Schoen Goodenacht 00:05:43 - Song, Don\u27t Sell Daddy Any More Whiskey 00:06:33 - Song, Blood Song 00:07:24 - Song, True Love 00:09:09 - Song, Down in the Valley 00:12:26 - Song, German Drinking Song 00:13:15 - Song, Pass Around the Bottle (John Brown\u27s Whiskey Bottle, racially explicit language) 00:14:16 - Song, Ten Little Bottles 00:17:05 - German New Year\u27s Wish 00:17:14 - Song, Old Waltz 00:18:30 - Introduction, Ruthie Jacobs of Hays, KS on June 7, 1962 00:19:01 - Cattle drive from Mexico to Abilene, KS 00:20:40 - Two riddles 00:21:18 - Story of grandfather\u27s murder of an Indigenous American 00:22:22 - Story of uncle eating a skunk by mistake 00:23:22 - First coffin at Logan, KS 00:24:11 - Mother and father being robbed in Yellowstone Park 00:25:22 - Introduction, Josephine S. Jacobs of Hays, KS on June 7, 1962. Recording quality is poor. 00:25:40 - Song, Catherine, Come With Me in the Fall Sung in German with translation 00:27:17 - Song, I am Pretty Sung in German with translation 00:27:57 - Song, Come In, Come In. Sung in German with translation 00:28:34 - Story of Indigenous Americans robbing mother\u27s home (Recording cuts off before finish)https://scholars.fhsu.edu/sackett/1061/thumbnail.jp

In vivo Spectroscopic and Imaging Studies of Photosensitizer in Photodynamic Therapy

Photodynamic Therapy (PDT) has emerged as a useful cancer treatment modality which utilizes a tumor localizing dye and activating light to selectively destroy neoplastic tissue. In an effort to understand the newly synthesized photosensitizers, we are studying them in a mouse tumor model grown on the dorsal side of the foot by in vivo magnetic resonance techniques. We have synthesized several photosensitizers which are specifically labeled with fluorine. Several coils appropriate for the tumor study by 19F NMR were designed and constructed for this project. The solenoid coil tunable to both 1Hand 19F nuclei was used to monitor the 19F labeled photosensitizer in the mouse foot tumor. An in vivo 19F NMR technique was used to study the retention of the photosensitizer over time in the tumor. We have used 31P NMR to study the outcome of PDT after using the new photosensitizer

Mixing of Supersonic Streams

The Strutjet approach to Rocket Based Combined Cycle (RBCC) propulsion depends upon fuel-rich flows from the rocket nozzles and turbine exhaust products mixing with the ingested air for successful operation in the ramjet and scramjet modes. A model of the Strutjet device has been built and is undergoing test to investigate the mixing of the streams as a function of distance from the Strutjet exit plane. Initial cold flow testing of the model is underway to determine both, the behavior of the ingested air in the duct and to validate the mixing diagnostics. During the tests, each of the two rocket nozzles ejected up to two pounds mass per second into the 13.6 square inch duct. The tests showed that the mass flow of the rockets was great enough to cause the entrained air to go sonic at the strut, which is the location of the rocket nozzles. More tests are necessary to determine whether the entrained air chokes due to the reduction in the area of the duct at the strut (a physical choke), or because of the addition of mass inside the duct at the nozzle exit (a Fabri choke). The initial tests of the mixing diagnostics are showing promise

Constant amplitude and post-overload fatigue crack growth behavior in PM aluminum alloy AA 8009

A recently developed, rapidly solidified, powder metallurgy, dispersion strengthened aluminum alloy, AA 8009, was fatigue tested at room temperature in lab air. Constant amplitude/constant delta kappa and single spike overload conditions were examined. High fatigue crack growth rates and low crack closure levels compared to typical ingot metallurgy aluminum alloys were observed. It was proposed that minimal crack roughness, crack path deflection, and limited slip reversibility, resulting from ultra-fine microstructure, were responsible for the relatively poor da/dN-delta kappa performance of AA 8009 as compared to that of typical IM aluminum alloys

From Earth to Orbit: An assessment of transportation options

The report assesses the requirements, benefits, technological feasibility, and roles of Earth-to-Orbit transportation systems and options that could be developed in support of future national space programs. Transportation requirements, including those for Mission-to-Planet Earth, Space Station Freedom assembly and operation, human exploration of space, space science missions, and other major civil space missions are examined. These requirements are compared with existing, planned, and potential launch capabilities, including expendable launch vehicles (ELV's), the Space Shuttle, the National Launch System (NLS), and new launch options. In addition, the report examines propulsion systems in the context of various launch vehicles. These include the Advanced Solid Rocket Motor (ASRM), the Redesigned Solid Rocket Motor (RSRM), the Solid Rocket Motor Upgrade (SRMU), the Space Shuttle Main Engine (SSME), the Space Transportation Main Engine (STME), existing expendable launch vehicle engines, and liquid-oxygen/hydrocarbon engines. Consideration is given to systems that have been proposed to accomplish the national interests in relatively cost effective ways, with the recognition that safety and reliability contribute to cost-effectiveness. Related resources, including technology, propulsion test facilities, and manufacturing capabilities are also discussed

NMR-based Metabolic Profiling of Pancreatic Cancer and Response to Glutamine Transport Inhibition

https://openworks.mdanderson.org/sumexp21/1227/thumbnail.jp

Controllability and Design of Unmanned Multirotor Aircraft Robust to Rotor Failure

A new design method for multi-rotor aircraft with distributed electric propulsion is presented to ensure a property of robustness against rotor failure from the control perspective. Based on the concept of null controllability, a quality measure is derived to evaluate and quantify the performance of a given design with the consideration of rotor failure. An optimization problem whose cost function is based on the quality measure is formulated and its optimal solution identifies a set of optimal design parameters that maximizes an aircraft’s ability to control its attitude and hence its position. The effectiveness of the proposed design procedure is validated through the results of experimentation with the Autonomous Flying Ambulance model being developed at Caltech’s Center for Autonomous Systems and Technologies

Microstructure of thin-wall ductile iron castings

Step plate castings with section thicknesses of 1.5 mm to 6 mm and individual (single) castings with section thicknesses of 2 mm to 6 mm were produced using a ductile iron chemistry. Microstructures of these thin wall ductal iron castings were characterized quantitatively using an image analyzer. Matrix structure (amount of pearlite, ferrite, and massive carbides) and graphite structure (volume fraction, nodule size, nodule content, and nodularity) were investigated as a function of section thickness. Pearlite content, nodule count, and nodularity increased with decreasing section thickness, whereas the nodule size decreased. Nodule content exceeded 2000 nodules per mm{sup 2} at the thinnest sections. Statistical analysis was performed to investigate the effect of casting parameters on the microstructure

Evaluation of Iowa Stiff Stalk Synthetic for resistance to gray leaf spot

Gray leaf spot (GLS) of maize (Zeamays), caused by Cercospora zeae-maydis, has become an increasing disease problem in the United States. Resistance to this pathogen is generally higher in inbred lines of Lancaster origin compared to lines derived from Iowa Stiff Stalk Synthetic (BSSS). This study was conducted to determine whether recurrent selection for yield had altered the level of GLS resistance in BSSS and to identify BSSS(R)Cl 1 S1 lines that combine GLS resistance with high yield. The distribution of GLS ratings for S1 lines derived from BSSSCO and BSSS(R)CI I were very similar, indicating that selection for yield had not altered G LS resistance· levels. Although the mean rating for both cycles was a susceptible 7 (I= resistant, 9 =susceptible), S1 lines with intermediate levels of resistance (4-6) were identified. The 250 BSSS(R)Cl I S1 lines were crossed to LH51, and the testcrosses were evaluated for yield and agronomic performance. S1 lines were identified which combine intermediate levels of GLS resistance with above-average standability and yield. These S1 lines will be recombined to develop an Iowa Stiff Stalk Synthetic population adapted to eastern maize growing conditions

Tailoring magnetic behavior of CoFeMnNiX (X = Al, Cr, Ga, and Sn) high entropy alloys by metal doping

Magnetic materials with excellent performances are desired for functional applications. Based on the high-entropy effect, a system of CoFeMnNiX (X = Al, Cr, Ga, and Sn) magnetic alloys are designed and investigated. The dramatic change in phase structures from face-centered-cubic (FCC) to ordered body-centered-cubic (BCC) phases, caused by adding Al, Ga, and Sn in CoFeMnNiX alloys, originates from the potent short-range chemical order in the liquid state predicted by ab initio molecular dynamics (AIMD) simulations. This phase transition leads to the significant enhancement of the saturation magnetization (Ms), e.g., the CoFeMnNiAl alloy has Ms of 147.86 Am2/kg. First-principles density functional theory (DFT) calculations on the electronic and magnetic structures reveal that the anti-ferromagnetism of Mn atoms in CoFeMnNi is suppressed especially in the CoFeMnNiAl HEA because Al changes the Fermi level and itinerant electron-spin coupling that lead to ferromagnetism