132 research outputs found
Generic trending and analysis system
The Generic Trending and Analysis System (GTAS) is a generic spacecraft performance monitoring tool developed by NASA Code 511 and Loral Aerosys. It is designed to facilitate quick anomaly resolution and trend analysis. Traditionally, the job of off-line analysis has been performed using hardware and software systems developed for real-time spacecraft contacts; then, the systems were supplemented with a collection of tools developed by Flight Operations Team (FOT) members. Since the number of upcoming missions is increasing, NASA can no longer afford to operate in this manner. GTAS improves control center productivity and effectiveness because it provides a generic solution across multiple missions. Thus, GTAS eliminates the need for each individual mission to develop duplicate capabilities. It also allows for more sophisticated tools to be developed because it draws resources from several projects. In addition, the GTAS software system incorporates commercial off-the-shelf tools software (COTS) packages and reuses components of other NASA-developed systems wherever possible. GTAS has incorporated lessons learned from previous missions by involving the users early in the development process. GTAS users took a proactive role in requirements analysis, design, development, and testing. Because of user involvement, several special tools were designed and are now being developed. GTAS users expressed considerable interest in facilitating data collection for long term trending and analysis. As a result, GTAS provides easy access to large volumes of processed telemetry data directly in the control center. The GTAS archival and retrieval capabilities are supported by the integration of optical disk technology and a COTS relational database management system
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The Local Bonding Environment of Amorphous In-Zn-O Films Studied by X-ray Absorption Fine Structure and Total X-ray Scattering Using Synchrotron Radiation
The structure of amorphous In-Zn-O (a-IZO) thin films was investigated using X-ray absorption fine structure (XAFS) and total X-ray scattering techniques. In spite of the lack of long-range periodicity, a-IZO thin films were found to exhibit significant ordering on short length scales. It was found that indium and zinc are 6- and 4- fold coordinated with oxygen, respectively, as they are in their native crystalline structures. The InO6 and ZnO4 polyhedra were also found to exhibit edge-sharing connectivity. Although the edge-shared polyhedra had a significant distribution of bond lengths, the next-nearest neighbor metal atoms occurred at approximately the same composition found using bulk composition measurements. The wide temperature and composition range where IZO films remain amorphous is likely due to the structural frustration induced by Zn-centered tetrahedrons and In-centered octahedrons
2003-2004 Brass Festival
https://spiral.lynn.edu/conservatory_otherseasonalconcerts/1063/thumbnail.jp
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Diffusion MR Tractography of the Heart
Histological studies have shown that the myocardium consists of an array of crossing helical fiber tracts. Changes in myocardial fiber architecture occur in ischemic heart disease and heart failure, and can be imaged non-destructively with diffusion-encoded MR. Several diffusion-encoding schemes have been developed, ranging from scalar measurements of mean diffusivity to a 6-dimensional imaging technique known as diffusion spectrum imaging or DSI. The properties of DSI make it particularly suited to the generation of 3-dimensional tractograms of myofiber architecture. In this article we review the physical basis of diffusion-tractography in the myocardium and the attributes of the available techniques, placing particular emphasis on DSI. The application of DSI in ischemic heart disease is reviewed, and the requisites for widespread clinical translation of diffusion MR tractography in the heart are discussed
2011-2012 Mostly Music: The Spanish-French Connection
https://spiral.lynn.edu/conservatory_mostlymusic/1013/thumbnail.jp
Vasodilatory and vascular mitochondrial respiratory function with advancing age: evidence of a free radically mediated link in the human vasculature
Recognizing the age-related decline in skeletal muscle feed artery (SMFA) vasodilatory function, this study examined the link between vasodilatory and mitochondrial respiratory function in the human vasculature. Twenty-four SMFAs were harvested from young (35 ± 6 yr, n = 9) and old (71 ± 9 yr, n = 15) subjects. Vasodilation in SMFAs was assessed, by pressure myography, in response to flow-induced shear stress, acetylcholine (ACh), and sodium nitroprusside (SNP) while mitochondrial respiration was measured, by respirometry, in permeabilized SMFAs. Endothelium-dependent vasodilation was significantly attenuated in the old, induced by both flow (young: 92 ± 3, old: 45 ± 4%) and ACh (young: 92 ± 3, old: 54 ± 5%), with no significant difference in endothelium-independent vasodilation. Complex I and I + II state 3 respiration was significantly lower in the old (CI young: 10.1 ± 0.8, old: 7.0 ± 0.4 pmol·s−1·mg−1; CI + II young: 12.3 ± 0.6, old: 7.6 ± 0.4 pmol·s−1·mg−1). The respiratory control ratio (RCR) was also significantly attenuated in the old (young: 2.2 ± 0.1, old: 1.1 ± 0.1). Furthermore, state 3 (CI + II) and 4 respiration, as well as RCR, were significantly correlated (r = 0.49–0.86) with endothelium-dependent, but not endothelium-independent, function. Finally, the direct intervention with mitochondrial-targeted antioxidant (MitoQ) significantly improved endothelium-dependent vasodilation in the old but not in the young. Thus, the age-related decline in vasodilatory function is linked to attenuated vascular mitochondrial respiratory function, likely by augmented free radicals
Computational and transcriptional evidence for microRNAs in the honey bee genome
A total of 68 non-redundant candidate honey bee miRNAs were identified computationally; several of them appear to have previously unrecognized orthologs in the Drosophila genome. Several miRNAs showed caste- or age-related differences in transcript abundance and are likely to be involved in regulating honey bee development
The Grizzly, February 6, 1981
Computer Relocation Offers New Services • Breakage and Theft: Wismer Releases Alarming Loss Assessment • Borough Announces Water Alert • Weather Brings Maintenance Headaches • Departmental Focus: Chemistry • News Briefs: Speech exemption examination; Fraternity sponsors foster child; Resident assistant applications • USGA Notes • Union Announces Photo Contest • JDB in Transition • NY Trip A Must • UC Lorelei Tradition • Transplanted Texan • O\u27Neill\u27s First Union Appearance Success • Altered States Weakened • College Placement Office Expecting Busy Semester • NMD Waiting for Windows • Union Snack Shop Receives Needed Improvements • KDK Tops Sorority GPA List • Gymnastics Lookin\u27 Good • Women\u27s B-Ball Seen as Powerhouse • Basketball Still Holding First • W. Maryland Swamped by Swimmershttps://digitalcommons.ursinus.edu/grizzlynews/1051/thumbnail.jp
2014-2015 Mostly Music: Bach
https://spiral.lynn.edu/conservatory_mostlymusic/1023/thumbnail.jp
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