Results 251 to 260 of about 1,709,745 (295)
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The Scandinavian Journal of Economics, 2002
Akerlof, Spence and Stiglitz showed that competitive markets can perform very poorly in the presence of informational asymmetry. In this paper I show that if there is a signaling technology which is sufficiently strong (i.e., the marginal cost of signaling declines sufficiently rapidly with quality) the cost of sorting is low and a Nash equilibrium ...
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Akerlof, Spence and Stiglitz showed that competitive markets can perform very poorly in the presence of informational asymmetry. In this paper I show that if there is a signaling technology which is sufficiently strong (i.e., the marginal cost of signaling declines sufficiently rapidly with quality) the cost of sorting is low and a Nash equilibrium ...
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Ultrafast Detection Of Weak Signals
SPIE Proceedings, 1988ABSTRACT Femtosecond nonlinear detection techniques for weak signals are discussed. New methods for the characterization of femtosecond sig nals, in amplitude and phase, are presented. 1. INTRODUCTION Several nonlinear detection techniques have been developed with the passively mode- locked dye laser as a source, using the com bination of Rh6G as ...
J. C. Diels, N. Jamasbi, C. Yan, M. Lai
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Phase conjugation of weak signals
LEOS '95. IEEE Lasers and Electro-Optics Society 1995 Annual Meeting. 8th Annual Meeting. Conference Proceedings, 2002We describe investigations into the conjugation of weak signals, corresponding to a few photons. We have used a variety of techniques, combining various methods of Brillouin amplification and phase conjugation with a laser pre-amplifier. Four Brillouin phase conjugation techniques were used to amplify or conjugate the signal, and in the case of ...
A.M. Scott +3 more
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Holographic Weak-Signal Enhancement Technique
Journal of Applied Physics, 1972A holographic weak-signal enhancement technique (WSET) is described which enhances the image of the source of a weak signal of interest in the presence of an unwanted strong signal with very little a priori knowledge of the latter. The technique is most suitable for imaging applications in fields such as seismic or oceanographic holography, where the ...
R. K. Mueller +2 more
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Weak Signal Detection Based on Signal-Correlation Principle
2009 5th International Conference on Wireless Communications, Networking and Mobile Computing, 2009The weak signal embedded in various noises is the subject of weak signal detection, while the noises much stronger than the valuable signal, and must take measures to improve the S/N during measuring the signal. So based on the signal-correlation principle, separates the useful signal from the noises by the measured-method of signal-correlation ...
Daowen Liu, Lin Yao
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Amplification and phase conjugation of weak signals
Soviet Physics Uspekhi, 1992The results of the study on phase conjugation of weak optical signals with the energy of units of photons are considered. Basic concepts of a semi-classical theoretical approach to describe amplification and phase conjugation (PC) of such signals are presented.
O.V. KULAGIN, G.A. PASMANIK, A.A. SHILOV
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Television and Contraceptive Use – A Weak Signal?
The Journal of Development Studies, 2014AbstractIn recent years, rural electrification and access to television have spread throughout the developing world. The values and cultural norms embodied in television programming have potentially profound implications for influencing behaviour, including reproductive decisions.
Peters, Jörg +2 more
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Multiple-weak-boson signals at hadron supercolliders
Physical Review D, 1992Multiple-weak-boson signals expected at future hadron supercolliders from several sources will provide new ways to probe the underlying interactions. The production of {ital t{bar t}t{bar t}}, {ital t{bar t}} {ital H}{sup 0}, {ital H}{sup 0}{ital H0}, {ital t{bar t}} {ital W}{sup +}{ital W{minus}}, {ital t{bar t}Z}{sup 0}{ital Z0}, Z{sup 0}{ital Z0 ...
, Barger, , Stange, , Phillips
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Weak signals in crisis prevention
2005This paper seeks to connect weak signals with the ability to analyze the human environment afforded by information technology. Two fields in which the application of weak signals is followed with particular interest are military and industrial espionage.
Kajava, Jorma +3 more
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Exploring trends and ’weak signals’
1999At the beginning of the era, about 2000 years ago, the average distance a person travelled in his total life was about 15,000 km, which is 500 km per year (Chatwin, 1988). During the period of industrialisation traffic volume was substituted by other modes of transport (inland waterways, rail) and rose to a world average of 1800 km in 1960.
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