is the DFT of the zero-padded wavelet filter. Similarly let {G(k)} denote the DFT of the zero-padded scaling filter. Further, suppose we attach to each pair (j, n) in the wavelet packet tree a sequence of ones and zeros according to the following rule. Let {c1,0} = {0} and {c1,1} = {1} and let {cj,n} = {cj,n,0, . . . , cj,n,j−1} where cj,n,k ∈ {0, 1} for k = 0, . . . , j − 1. Define, for n = 0,...

Some digital signature algorithms (such as RSA) require messages to be padded before they are signed. Secure tokens can use these padding bits as a subliminal channel to embed auditing information in their signed messages. These auditing bits simplify protecting against lost and stolen tokens, breaks of specific protocols, hash functions, and ciphers, and attacks based on defeating a token’s ta...

Novel compliant flooring systems are a promising approach for reducing fall-related injuries in older adults based on evidence of substantial force reduction during simulated falls on the hip and minimal influence on balance and mobility. In this study we observed force and acceleration attenuation of up to 80% provided by these products relative to a padded carpet during simulated head impacts.

In this article, we present theorems that completely characterize added artifacts in arbitrary limited data X-ray tomography using FBP padded by zeros. We provide examples that illustrate our theorems. Our theorems are motivated by unusual limited data sets in synchrotron tomography and practical information will appear elsewhere.

Sixty patients with mallet finger deformity were randomly treated with either a Stack or a custom-made padded aluminium alloy malleable finger splint. Both splints were equally effective in correcting the deformity but the aluminium alloy splint was able to be fitted to a wider variety of finger shapes and sizes and caused significantly fewer skin complications.