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101.
102.
V. Metag R. Repnow P. von Brentano J. D. Fox 《Zeitschrift für Physik A Hadrons and Nuclei》1969,226(1):1-6
Delayed fission events due to isomeric fission have been produced using He3 and He4 beams from the MP Tandem Van de Graaff accelerator. The isomeric nuclei which recoil from the target and subsequently fission in flight were detected by a square cone array of polycarbonate foil detectors mounted along the beam direction. From the distribution of fission tracks along the detector foils, half-lives in the nanosecond region were deduced. 相似文献
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The total hadronic cross section for e+e− annihilation between 3.1 and 4.8 GeV center of mass energy
J. Burmester L. Criegee H.C. Dehne K. Derikum R. Devenish J.D. Fox G. Franke G. Flügge Ch. Gerke G. Horlitz Th. Kahl G. Knies M. Rössler S. Wolff R. Schmitz T.N. Ranga Swamy U. Timm K. Wacker 《Physics letters. [Part B]》1977,66(4):395-400
Using the solenoidal magnetic detector PLUTO, we have measured the total cross section for e+e? annihilation into hadrons. Results are presented for center of mass energies between 3.6 and 4.8 GeV, and in the regions of the (3.1) and ψ(3.7) resonances. We also present results for the 2 prong cross section in the energy range 3.6 to 4.8 GeV. 相似文献
105.
Karl A. Fox 《Mathematical Social Sciences》1984,7(2):139-165
Part I of this paper presented the basic concepts of behavior settings and eco-behavioral science originated by the psychologist Roger Barker, showed how they could be linked with standard economic data systems, and suggested their use as a basis for time-allocation matrices and social system accounts. Part II discusses the relationships of behavior settings and eco-behavioral science to established disciplines, describes applications of mathematics to the new concepts by Fox and associates, and points out some major areas in need of mathematical and theoretical development. These areas include representation and measurement of patterns of relationships among roles within behavior settings, relationships among behavior settings within communities and organizations, and the evolution of large, heterogeneous populations of behavior settings over time. We hope some readers will be motivated to participate in this new scientific enterprise. 相似文献
106.
Until recently, speech analysis techniques have been built around the all-pole linear predictive model. This study examines the effectiveness of using the perceptual linear predictive method for analyzing nasal consonants. Six speakers (three men and three women) produced 300 CV syllables with initial nasal consonants /m/ and /n/. A threshold-based boundary detection algorithm was developed to extract nasal segments from the CV contexts. Poles of a fifth-order perceptual linear predictive model were calculated and the frequency of the second pole was used to characterize the place of articulation of nasal consonants. Results indicated that the frequency for the second transformed pole was significantly lower for /m/ than for /n/ and was independent of factors such as a vowel context and gender of the speaker. A nasal identification rate of 86% was obtained based on the frequency of the second pole. The use of the perceptual linear predictive method may thus overcome some difficulties associated with analyzing nasal consonants. 相似文献
107.
108.
Elsewhere [1], using the framework of multipolar continuum mechanics, the authors have discussed a possible alternative to the two-fluid theories for liquid helium 11 and showed that, in the case when the fluid is assumed to be incompressible, second sound waves exist in both the stationary and rotating fluid. Here the constitutive theory presented in the paper cited is extended to include the effects of compressibility and viscosity and a study of these effects on the propagation of small-amplitude waves. 1t is found that the qualitative predictions agree with the experimental observations in helium II. 相似文献
109.
B. L. Fox 《Journal of Optimization Theory and Applications》1973,11(3):228-234
Discretizing certain discrete-time, uncountable-state dynamic programs such that the respective solutions to a sequence of discretized versions converge uniformly to the solution of the original problem is shown. Via a random perturbation device, we apply our general approach to a separable nonconvex program.This paper was completed while the author was Visiting Professor of Management Science at the University of Chicago, Chicago, Illinois. 相似文献
110.