Study of multiple scattering effects in fish abundance estimation problems
United Kingdom
Study of multiple scattering effects in fish abundance estimation problems
SIGLE / Available from British Library Document Supply Centre-DSC:DXN042274 / BLDSC - British Library Document Supply Centre / GB / United Kingdom
Spectral properties and scattering theory for wave propagation in inhomogeneous media
The wave equation (#partial deriv#_t"2 + H) u = 0 with H: = f"2(x) "n#SIGMA#_j_,_k_=_1 D_jg_j_k(x)D_k, x element of R"n describes the propagation of acoustical waves as well as electromagnetic waves in inhomogeneous media. The L"#infinity# functions f and g_j_k are short range (Enss type) perturbations of other functions f_0 and g_j_k"0, respective...
Stress durch Strom und Strahlung
Germany
Investigation on the binaural loudness perception / Untersuchungen zur binauralen Lautstaerkeempfindung
Binaural loudness perception has been studied in sound fields from spacially distributed sound sources. In the loudness comparison tests an artificial diffuse sound field was directly compared with flat sound waves from different directions of incidence. Hearing tests were carried out either with loudspeakers or with the system artificial head/head...
Spectral properties and scattering theory for wave propagation in inhomogeneous media
Germany
Stress from electricity and radiation / Stress durch Strom und Strahlung
The author, a journalist and a free expert in constructional biology, discusses the origins of electricity and radiation and their effects on human health. The emphasis is on the causes and measurement of stress-inducing or stress-enhancing factors. Preventive measures are pointed out. The book goes into detail about a.c. electric and magnetic fiel...
Untersuchungen zur binauralen Lautstaerkeempfindung
Germany
Experimental results on the role of turbulence for the heat budget of the upper atmosphere
A total of 17 profiles of small scale density fluctuations have been measured in the lower thermosphere and upper mesosphere by means of sounding rockets. The fluctuations are used to derive turbulent parameters, such as the turbulent velocity. The accuracy of the absolute numbers is unprecedented thanks to the very high spatial resolution and an i...
Untersuchungen zur Dichte und Schallgeschwindigkeit des Steinsalzes der Asse in situ und im Labor
Germany
