647 research outputs found
Solubility of refractory metals and alloys in alkali metals First quarterly report, Mar. 3 - May 28, 1966
Solubility and corrosion resistance of refractory metals and alloys determined in liquid alkali metal
Development of an energy-absorbing passenger seat for a transport aircraft
Commercial air transport passenger safety and survivability, in the event of an impact-survivable crash, are subjects receiving increased technical focus/study by the aviation community. A B-720 aircraft, highly instrumented, and remotely controlled from the ground by a pilot in a simulated cockpit, was crashed on a specially prepared gravel covered impact site. The aircraft was impacted under controlled conditions in an air-to-ground gear-up mode, at a nominal speed of 150 knots and 4-1/2 deg glide slope. Data from a number of on board, crash worthiness experiments provided valuable information related to structural loads/failure modes, antimisting kerosene fuel, passenger and attendant restraint systems and energy absorbing seats. The development of an energy absorbing (EA) seat accomplished through innovative modification of a typical modern standard commercial aviation transport, three passenger seat is described
Solubility of refractory metals and alloys in potassium and in lithium
Solubility of refractory metals and alloys in liquid potassium and lithiu
Evolução da superação da dormência de sementes de capim sudão durante o armazenamento - resultados parciais.
Orientador: Luiz Eichelberger
Influence of Doubled CO2 on Ozone via Changes in the Brewer–Dobson Circulation
In this short note, the effect of enhanced circulation due to doubling CO2 on ozone is investigated. The difference of Brewer–Dobson circulation (BDC) between the doubled CO2 and control run from an idealized atmospheric general circulation model is added to the BDC climatology derived from National Centers for Environmental Prediction—Department of Energy Reanalysis 2 (NCEP2) from 1979 to 2002. Then it is used to drive the California Institute of Technology/Jet Propulsion Laboratory (Caltech/JPL) two-dimensional chemistry and transport model. The results reveal that the total ozone increases by 7 and 3.5 Dobson units (DU) in the high latitudes of the Northern and Southern Hemispheres, respectively, and decreases by 4 DU in the Tropics as a result of the increase in BDC associated with doubled CO2. If the change of eddy mixing coefficients after doubling CO2 is also considered, the total ozone will increase by 6.5 and 3 DU in the high latitudes of the Northern and Southern Hemispheres after combining both effects from the change in BDC and eddy mixing coefficients
Produção de semente genética de trigo na Embrapa trigo.
Orientador: Luiz Eichelberger
Procedimentos adotados na produção de semente genética de cereais de inverno na Embrapa Trigo.
bitstream/CNPT-2010/40664/1/p-do46.pd
Solubility studies of ultra pure transition elements in ultra pure alkali metals
Solubility of pure iron, molybdenum, niobium, and tantalum in liquid potassiu
Produção de semente genética de soja na Embrapa Trigo em 2007/08.
bitstream/item/128677/1/ID2831-LVdocumentos86-p57-63.pd
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