Extended imaging split mode loudspeaker system

1989 ◽  
Vol 86 (5) ◽  
pp. 2057-2057
Author(s):  
Arnold I. Klayman
Keyword(s):  
2010 ◽  
Vol 24 (11-12) ◽  
pp. 1501-1510 ◽  
Author(s):  
W.-J. Lin ◽  
J.-Y. Li ◽  
D.-B. Lin ◽  
L.-S. Chen ◽  
M.-P. Houng
Keyword(s):  

1977 ◽  
Vol 67 (3) ◽  
pp. 651-660 ◽  
Author(s):  
Robert J. Geller ◽  
Seth Stein

abstract Splitting of the Earth's normal modes was observed for both the 1960 Chilean and 1964 Alaskan earthquakes. The strong peaks in the observed spectrum of each split multiplet correspond to singlets with much higher amplitudes than the others. Using theoretical results we have derived elsewhere (Stein and Geller, 1977a), we are able to predict this pattern. We show that the source mechanisms inferred for these earthquakes from surface waves are consistent with the observed pattern of relative spectral amplitudes of the split modes. However other mechanisms, such as a slow isotropic volume change, are also consistent with the split-mode amplitudes and are excluded only by additional data.


2019 ◽  
pp. 46-51 ◽  
Author(s):  
A. M. Konovalov ◽  
V. I. Kugushev ◽  
A. Yu. Yakovlev

Below given are the results of experimental studies of the process of damping of self-oscillation of the beam which is a long plate with rectangular cross-section. The studies were aimed at demonstration of the process (accompanying the damping) of energy redistribution between the modes and harmonics of self-oscillations under the conditions when this energy is essentially bounded. The artificial damper was used which was a small-size slightly pressed plate. The same local damping effect is created by cracks in the parts when there are oscillations, plastic deformation at the apex of crack. Specially developed transducers operating in split mode as part of multifunction acoustic impedance fault detector were used as measuring equipment. The receiver-transducer was attached at the end of the beam, the generator-transducer was attached at the centre of the beam so as to induce oscillation train consisting of five dominant flexural modes of self-oscillations of the beam. Limitation of energy inducing self-oscillations was determined by the rigidity of spring-plates of generator-transducer. The rigidity of the plates was chosen so as oscillation energy was sufficient only for extraction of the given train amplitudes as being dominant, whereas the rest modes of self-oscillations were either not induced at all or were induced with small amplitude. It is demonstrated that redistribution process, when inducing energy is limited, is highly sensitive to attenuants, which allows to use it as a crack indicator during integral nondestructive testing of parts and entire assemblies. For this reason it is concluded that the process of energy redistribution between different harmonics and modes of self-oscillations under the influence of damping factors is advanced for computer-aided nondestructive testing.


2005 ◽  
Vol 297-300 ◽  
pp. 332-338 ◽  
Author(s):  
Yeon Su Kim ◽  
Jae Min Park ◽  
Sang Hoon Choi

We designed the compound CVT (Continuously Variable Transmissions) by combining power circulation mode and power split mode, which have been proposed for connecting 2K-H II differential gear to the V- belt type CVU (Continuously Variable Unit), as an input coupled type. With the designed compound CVT, we carried out theoretical analysis and performance experiments. We proved that the compound CVT had a better performance than either of the power circulation mode or power split mode.


1994 ◽  
Vol 40 (8) ◽  
pp. 1587-1590 ◽  
Author(s):  
P Demedts ◽  
L Theunis ◽  
A Wauters ◽  
F Franck ◽  
R Daelemans ◽  
...  

Abstract A patient intentionally ingested an unknown amount of methanol and was admitted to the hospital 6 h later. On admission, the methanol concentration in blood was estimated as approximately of 134 mmol/L, based on the calculation of the osmolal gap. Intravenous ethanol administration and hemodialysis were promptly started. During hemodialysis, several blood samples were collected for determination of methanol and ethanol concentrations. Initially, we used gas chromatography with split-mode injection of pretreated serum samples; however, methanol concentrations turned out to be significantly lower than expected, based on calculated osmolal gap values. Because no explanation for the excess serum osmolal gap was apparent, we reanalyzed samples, using head-space gas chromatography. The methanol concentrations measured were significantly higher and osmolal gap values were no longer excessive.


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