Recently an algorithmic schema was proposed for converting any existing block cipher into one which excepts variable length inputs with the computational workload increasing in proportion to the block size. The resulting cipher is referred to as an elastic block cipher. The initial work presented immunity to certain key recovery attacks, and left open further analysis of the method and its poss...

The wear behavior of two coatings (Fe49.7Cr18Mn1.9Mo7.4W1.6B15.2C3.8Si2.4 and Fe40Cr23Mo14C15B6Y2) sprayed by high-velocity air fuel technology was investigated through nanoscratch tests under ramping loads. Compared with the substrate, the Fe-based amorphous coatings exhibit lower penetration depth, higher elastic recovery, and lower wear volume, indicating the excellent wear resistance of the...

We consider the inverse scattering problem of reconstructing multiple impenetrable bodies embedded in an unbounded, homogeneous and isotropic elastic medium. The inverse problem is nonlinear and ill-posed. Our study is conducted in an extremely general and practical setting: the number of scatterers is unknown in advance; and each scatterer could be either a rigid body or a cavity which is not ...

The purpose of this paper was to determine the possible employment of three groups of phyllosilicates (two smectites, three palygorskites, and two sepiolites) as direct-compression tablet excipients. Compact lots of each material were obtained after application of three different compression loads and the elastic recoveries and tensile strengths of each lot were then determined. The results sho...

Facial aging is the progression of three processes: skin and soft tissue laxity, superficial skin changes, and volume loss [1-5]. Understanding these processes is essential when intending to achieve natural results for the aging face. Since Mitz and Peyronie [6] defined the superficial musculoaponeurotic system (SMAS), facial rejuvenation techniques have evolved from subcutaneous rhytidectomy t...

In this article we propose a new method for accurate nonrigid motion analysis when point correspondence data is not available. Nonlinear finite element models are constructed by integrating range data and prior knowledge about an object’s properties. The motion sequence is recovered given an initial alignment of the model with the first frame of the sequence. The main idea of the method is to f...