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New ‘High-Entropy’ Alloy Is As Light As Aluminum, As Strong as Titanium Alloys
High-Entropy As Light As Aluminum As Strong as Titanium Alloys
2014/12/30
Researchers from North Carolina State University and Qatar University have developed a new “high-entropy” metal alloy that has a higher strength-to-weight ratio than any other existing metal material....
Variance estimation and asymptotic confidence bands for the mean estimator of sampled functional data with high entropy unequal probability sampling designs
covariance function finite population Hajek approximation Horvitz-Thompso estimator Kullback-Leibler divergence rejective sampling unequal probability sampling without replacement
2012/11/23
For fixed size sampling designs with high entropy it is well known that the variance of the Horvitz-Thompson estimator can be approximated by the H\'ajek formula. The interest of this asymptotic varia...
High-Entropy Visual Identification for Touch Screen Devices
applications visual cryptography user identification
2011/7/25
We exhibit a system for improving the quality of user-derived keying material on touch-screen devices. We allow a device to recover previously generated, highly entropic data suitable for use as (part...
High-Entropy Visual Identification for Touch Screen Devices
applications / visual cryptography user identification
2012/3/27
We exhibit a system for improving the quality of user-derived keying material on touch-screen devices. We allow a device to recover previously generated, highly entropic data suitable for use as (part...
High-Entropy Polar Regions Around the First Protostars
High-Entropy Polar Regions the First Protostars
2011/1/13
We report on simulations of the formation of the first stars in the Universe, where we identify regions of hot atomic gas (fH2 < 10-6) at densities above 10-14 g/cc, heated to temperatures ranging bet...
Optimal Discretization for High-Entropy Graphical Passwords
authentication password security graphical passwords
2009/6/4
In click-based graphical password schemes that allow arbitrary click locations on image,
a click should be verified as correct if it is close within a predefined distance to the originally
chosen lo...
Entropic Security and the Encryption of High Entropy Messages
Entropic Security Encryption High Entropy Messages
2009/3/27
Russell and Wang [22] recently introduced an elegant, information-theoretic notion called
entropic security of encryption: they required that the cipher text leak no predicate of the
plaintext (simi...