Introduction/purpose: At altitudes of 80 to 40 km, while the spacecraft made duralumin without a thermal-protective coating was descending from flight orbit at first and second cosmic velocities, data were obtained on increase in density, pressure, temperature behind shock front, as well backout wave surface spacecraft. Methods: Calculations energy fluxes for every 10 convective radiative heat ...

The 70 ev positive and negative ion mass spectra of ring-substituted nitrobenzenes were studied. The influence of the substituent group on the fragmentation modes of the molecular ions is discussed. The effect of pressure in the formation of negative ions was also studied. As expected, the ratio of fragment ions to negative molecular ions decreased with increasing pressure in ion source.

normal 0 false false false en-us x-none ar-sa microsoftinternetexplorer4 background : schizophrenia requires a large share of medical resources due to its early onset and chronic and severe nature. compliance therapy is a therapy specifically designed to improve concordance with treatment for those with major mental illnesses. the aim of present study was to determine whether compliance therapy...