Écoulement d'un fluide de Bingham dans un domaine non-cylindrique

We obtain an existence theorem for Bingham flows in a noncylindrical domain, as a simple application of a previous result on Bingham flows with a monotone perturbation.     

Measurement of hydrogen- and self-broadened half-widths of ammonia at 200 and 300°K

The hydrogen- and self-broadened half-widths have been measured for the (v₁+v₂)- and (v₂+v₃)-bands of ammonia at 300 and 207°K. Measurement of hydrogen-broadened widths has been restricted to J, K ?6, but that of self-broadened widths is done for a few lines outside that range. Assuming a power-law dependence of half-width on temperature given by γ(T)=γ(T₀)(T/T₀)^α, the average value of the index α for the lines measured is found to be 0·57 for hydrogen broadening.     

Absorption strength measurement of the ν1 band of methyl chloride

The absorption strengths of the Q-branch manifolds of the ν₁ band of methyl chloride have been measured. The results have been used to deduce the band strength which is 32.1 ± 2.9 cm^?2 atm^?1 at 297 K. The P-branch absorptions have been investigated to determine the possibility of determining a vibration-rotation factor for the band. This factor is 1 + (2αβ + γ) ～ 1.026.