62 research outputs found
2006 NASA Range Safety Annual Report
Throughout 2006, Range Safety was involved in a number of exciting and challenging activities and events, from developing, implementing, and supporting Range Safety policies and procedures-such as the Space Shuttle Launch and Landing Plans, the Range Safety Variance Process, and the Expendable Launch Vehicle Safety Program procedures-to evaluating new technologies. Range Safety training development is almost complete with the last course scheduled to go on line in mid-2007. Range Safety representatives took part in a number of panels and councils, including the newly formed Launch Constellation Range Safety Panel, the Range Commanders Council and its subgroups, the Space Shuttle Range Safety Panel, and the unmanned aircraft systems working group. Space based range safety demonstration and certification (formerly STARS) and the autonomous flight safety system were successfully tested. The enhanced flight termination system will be tested in early 2007 and the joint advanced range safety system mission analysis software tool is nearing operational status. New technologies being evaluated included a processor for real-time compensation in long range imaging, automated range surveillance using radio interferometry, and a space based range command and telemetry processor. Next year holds great promise as we continue ensuring safety while pursuing our quest beyond the Moon to Mars
Synthesis, Crystal Structure, and Rotational Energy Profile of 3-Cyclopropyl-1,2,4-benzotriazine 1,4-Di-N-oxide
Prospectus, May 7, 1981
SPEECH TEAM 11TH RANKED; National Forensics Top 20; C of C V-P, Neils predicts downtown area will change; Overcast and Snyder receive award; Co-Editors named for 1981-82; Barnes looks back on his Parkland experiences; Letters to the Editor: Student criticizes review; Classifieds; Our mistake! Stugo candidate got platform in on time; Convocations Wants You!!; Now is the time to get married; More letters to the Editor: New Stugo senator, Jackson appreciates support; Schumacher\u27s final notes...; Trail, Hillary win in close Stugo election last week; Trail expresses gratitude for the voters; Be kind to animals ; Japan King of bicycle road; Motocross bikes good for kids; Rogers, Gayle at Assembly Hall May 13.; Off Broadway: Dynamic, Aggressive; Gayle not living under Lorett\u27s shadow now!; Piloting not as easy as you may think!; Drug problem is going to get worse. ; Art Thesis Exhibit disappointing; Latin may be on its way back; Parkland secretaries enjoy the good life; Model Rockets popular; RWS\u27S help each other; PC offers one-day driving course; Ramblin\u27: Alender\u27s rambles are over; Rundgren just changing with the times; Do you want hard rock...?; Frazier, Turpin part of Senior May Fest; Here\u27s the 1981 Prospectus staff; CIRS has the info on day care; Did You Know That...Some Superstitions; \u27Recent rains still not enough\u27: Burwash; Barkstall appalled by Atlanta slayings: Urban League director says blacks are still discriminated against; Are we running out of natural resources?; Get out your horses for PC\u27s Horse Show; Parkland Happenings: Spring concerts feature Irving Berlin; Awards Banquet a success!; Winning Intellectual Freedom Essay; A child\u27s world is important throughout all stages; Dental classes named for \u2781-82; Final Examinations -- Spring, 1981; Cobras bow to Lake Land; Patrick to Tennessee; Softball team beats Danville; ...beat Lincoln Land three; Letter to the Sports Editor: Student upset; Walder wins final Fast Freddy; scoreboard; Baseballhttps://spark.parkland.edu/prospectus_1981/1017/thumbnail.jp
Trace element compositions of jadeite (+omphacite) in jadeitites from the Itoigawa-Ohmi district, Japan: Implications for fluid processes in subduction zones
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High resolution low dose transmission electron microscopy real-time imaging and manipulation of nano-scale objects in the electron beam
The present invention includes a method, apparatus and system for nanofabrication in which one or more target molecules are identified for manipulation with an electron beam and the one or more target molecules are manipulated with the electron beam to produce new useful materials.Board of Regents, University of Texas Syste
Synthesis, Crystal Structure, and Rotational Energy Profile of 3-Cyclopropyl-1,2,4-benzotriazine 1,4-Di-N-oxide
1,2,4-Benzotriazine 1,4-di-N-oxides are potent antitumor drug candidates that undergo in vivo bioreduction leading to selective DNA damage in the low oxygen (hypoxic) cells found in tumors. Tirapazamine (TPZ) is the lead compound in this family. Here we report on the synthesis, crystal structure, and conformational analysis of a new analog, 3-cyclopropyl-1,2,4-benzotriazine 1,4-di-N-oxide (3). Compound 3 (C10H10N3O2) crystallized in the monoclinic space group C2/c. Unit cell parameters for 3: a = 16.6306 (12), b = 7.799 (5), c = 16.0113 (11) Ă
, α = 90, ÎČ = 119.0440 (10), Îł = 90, and z = 8
Delayed Neurotoxicity of Organophosphorous Compounds and Copper Concentration in the Serum of Hens
Deciphering the tectonometamorphic history of subducted metapelites using quartzâinâgarnet and Tiâinâquartz (QuiGâTiQ) geothermobarometry : A key for understanding burial in the Scandinavian Caledonides
The Seve Nappe Complex is a subduction-related high-grade metamorphic unit that was emplaced onto the margin of Baltica during Caledonian orogenesis. In this paper, the tectonometamorphic evolution of the Lower Seve Nappe in the Scandinavian Caledonides was characterized with the help of the continuous Collisional Orogeny in the Scandinavian Caledonides (COSC-1) drill core, using a combination of various PâT estimation techniques based on garnetâquartz mineral pairs (quartz-in-garnet and Ti-in-quartz [QuiGâTiQ]), conventional thermobarometry and thermodynamic modelling of phase equilibria. This multi-method approach yields complementary results and delivers critical data to constrain a comprehensive pressureâtemperatureâdeformationâtime (PâTâDât) evolutionary path for the metasedimentary rocks of the Lower Seve Nappe. In the garnetiferous metasedimentary rocks, quartz inclusions in garnet preserve the PâT conditions of three distinct garnet growth stages corresponding to three metamorphic stages Ms1 to Ms3, including prograde and peak metamorphic conditions. Ms1 and Ms2 stages were constrained via quartz inclusions in garnet core and mantle. They are relatively close in the PâT space and could be considered as one single continuous prograde event occurring at epidoteâamphibolite facies conditions of 460â520°C and 0.6â0.85âGPa. The growth of the garnet outermost rim defines the Ms3 stage at amphibolite facies conditions of 590â610°C and 1.13â1.18âGPa and corresponds to the peak metamorphic conditions. The microstructural analysis shows that the finite ductile strain pattern of the Lower Seve Nappe results from the superposition of four deformation phases. The initial phase D1 is defined by the S1 foliation that is still preserved as a curved inclusion trail in the garnet core. The D2 phase initiated contemporaneously with garnet core growth and the development of muscoviteâbiotiteâplagioclase S2 foliation. Garnet outermost rim growth marks the end of the prograde path and peak metamorphic conditions. This stage is overprinted by the D3 phase and Ms4 stage associated with the development of the main regional metamorphic and mylonitic fabric S3 associated with CâČ-type shear bands along the retrograde path. Ms4 stage, which was constrained using traditional thermobarometric techniques, corresponds to the chemical re-equilibration of the metasedimentary minerals and occurred under amphibolite facies conditions at ~570â610°C and 0.78â1.00âGPa. The D3 phase is then generally weakly to strongly overprinted by later lower grade deformation D4 phase at greenschist facies conditions (Ms5). 40Ar/39Ar ages of syn-kinematic white mica and biotite indicate that the final stage of the thrusting of the Lower Seve Nappe and thus the timing of its emplacement onto the Offerdal Nappe occurred at c. 423âMa. Collectively, these results are consistent with previous estimates of the timing and conditions of metamorphism derived from the Lower Seve Nappe especially in west-central JĂ€mtland. However, application of QuiGâTiQ thermobarometry demonstrated that quartz inclusions in garnet can preserve different aspects of garnet growth, which are not accessible by traditional methods especially in complex terranes, and therefore provided new significant insights into the Lower Seve prograde evolution
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