Development of on-orbit fluid gaging techniques

The objective was to measure liquid mass to plus or minus 1 percent in two-phase tanks in orbit. Viewgraphs present information on concept selection, program status and anticipated results. The program aims at test results showing 1 percent accuracy, the development of a breadboard test article usable in the lab or aboard a KC-135, and a concept that will permit flight article design to proceed

Simulation of the ERDC Blast Load Simulator (BLS) in Various Test Configurations Using Loci/BLAST

This thesis describes the simulation of ERDC’s Blast Load Simulator (BLS) using MSU’s Loci/BLAST. The BLS was created to replicate waveforms found in blast scenarios. Loci/BLAST is an explicit, unstructured CFD code that specializes in moving waveforms. ERDC conducted various tests, and a grid for each scenario was created using the SolidMesh tool. Each grid was simulated, and the results were displayed as time history plots and spatial plots. Simulations were also performed that compared 2D and 3D grids and determined the effect of the grate and striker components. There was a strong correlation between the experimental and simulation results for each case, demonstrating that Loci/BLAST is fully capable of modeling the BLS waveforms. A 2D grid produced results comparable to those on a full 3D grid. The grate and striker were critical in the simulation because they significantly affected the waveform

DESIGN OF A LONG SPAN TRANSFER BEAM (REINFORCED CONCRETE) AND THE MODE OF CONSTRUCTION AND REMOVAL OF SCAFFOLDING TO CATER TO THE TRANSFER BEAM

Deep beams are very common construction component, which are often used in civil engineering to carry loads for a big space. Transfer beam is used to distribute load from above to the large column beneath it. This study is to design a transfer beam which has a long span of So meters. Also to determine suitable formwork design, scaffolding arrangements and construction methodology. A deep beam with long span like this will tend to deflect or even worse fails, and the mid-span. Analysis has to be conducted to study the behavior of this beam in order to avoid failure and minimize deflection over tolerable limit. This study will covers from design and deep beam analysis, suitable formwork design, scaffolding arrangements and construction methodology. Design Reinforced Concrete, Beam analysis, Formwork design will be use as aid in this study

Simulation of the ERDC Blast Load Simulator (BLS) in Various Test Configurations Using Loci/BLAST

This thesis describes the simulation of ERDC’s Blast Load Simulator (BLS) using MSU’s Loci/BLAST. The BLS was created to replicate waveforms found in blast scenarios. Loci/BLAST is an explicit, unstructured CFD code that specializes in moving waveforms. ERDC conducted various tests, and a grid for each scenario was created using the SolidMesh tool. Each grid was simulated, and the results were displayed as time history plots and spatial plots. Simulations were also performed that compared 2D and 3D grids and determined the effect of the grate and striker components. There was a strong correlation between the experimental and simulation results for each case, demonstrating that Loci/BLAST is fully capable of modeling the BLS waveforms. A 2D grid produced results comparable to those on a full 3D grid. The grate and striker were critical in the simulation because they significantly affected the waveform

Unique Posttraumatic Growth Expression Among Homeless Males Currently Enrolled in Chemical Dependency Treatment

Posttraumatic growth (PTG) has gained considerable research and clinical attention for the past three decades. While the impact of PTG has been well-researched in relation to trauma exposure, medical ailments, or mood related conditions, there are still a number of mental health conditions requiring further analysis. The current study examined the relationship between PTG and key substance use significance indicators, including diagnostic severity of the use disorder and number of previous substance use treatment attempts, among a sample (N = 136) of adult men who were enrolled in a mental illness/chemical dependency (MICD) intensive outpatient program (IOP). This study also examined how posttraumatic stress disorder (PTSD) symptoms may serve as a moderator of the relationship between PTG and substance use indicators. Results showed that PTG was significantly negatively correlated with both substance use severity and the number of previous substance use treatments. PTSD symptom severity was found to moderate the relationship between PTG and substance use severity for both moderate and high levels of PTSD symptoms, but not for participants with low PTSD symptoms. Specifically, those with high PTSD symptoms showed a significantly more negative relationship between PTG and substance use severity as compared to moderate PTSD symptoms. This same moderation effect of PTSD was not found between the number of previous treatments and PTG. Findings suggest that substance use and trauma exposure appear to correlate with the level of resilience in homeless populations. Findings provide a number of important clinical implications around the importance of addressing substance use concerns with populations who experienced trauma, and the role of mental health care in shelter settings. Future directions based on the present study emphasize the continued need for the inclusion of both positive and negative PTG ratings

Pressure-temperature phase diagram of the heavy-electron superconductor URu2Si2

The pressure-temperature phase diagram of the heavy-electron superconductor URu2Si2 has been reinvestigated by ac-susceptibility and elastic neutron-scattering (NS) measurements performed on a small single-crystalline rod (2 mm in diameter, 6 mm in length) in a Cu-Be clamp-type high-pressure cell (P < 1.1 GPa). At ambient pressure, this sample shows the weakest antiferromagnetic (AF) Bragg reflections reported so far, corresponding to the volume-averaged staggered moment of mord ~ 0.011 mB/U. Under applied pressure, the AF scattering intensity exhibits a sharp increase at P ~ 0.7 GPa at low temperatures. The saturation value of the AF scattering intensity above 0.7 GPa corresponds to mord ~ 0.41 mB/U, which is in good agreement with that (~ 0.39 mB/U) observed above 1.5 GPa in our previous NS measurements. The superconductivity is dramatically suppressed by the evolution of AF phase, indicating that the superconducting state coexists only with the hidden order phase. The presence of parasitic ferro- and/or antiferromagnetic phases with transition temperatures T1star =120(5) K, T2star = 36(3) K and T3star = 16.5(5) K and their relationship to the low-T ordered phases are also discussed.Comment: 6 pages, 7 figures, submitted to J. Magn. Magn. Mater. (ICM2006