The concept of relative bid privacy in auction is proposed, which does not conceal the bids, but conceals the link between them and the corresponding bidders. Relative bid privacy leads to two advantages: the bidding values can be very precise and any auction rule can be applied. A new mix network is designed and applied to implement relative bid privacy efficiently. Two rounds of shuffling are...

In 14 mongrel dogs wash-in and wash-out curves for halothane were obtained from measurements of arterial blood, mixed venous blood and end-tidal gas. From a certain point in the wash-in period the halothane concentration of arterial blood can be calculated from the halothane concentration in end-tidal gas and the blood-gas partition coefficient for halothane. Analysis of the curves shows that t...

The dental plaque harbours a diverse range of bacteria such as Streptococcus mutans, Streptococcus sanguis, Streptococcus sobrinus, Lactobacillus spp, Actinomyces spp. etc, embedded in a matrix of polymers of bacterial and salivary origin. Therapeutic procedures used in the treatment of caries do not always eliminate all the microorganisms in the residual tissues, leading to development of recu...

We study the question of how to shuffle n cards when faced with an opponent who knows the initial position of all the cards and can track every card when permuted, except when one takes K < n cards at a time and shuffles them in a private buffer “behind your back,” which we call buffer shuffling. The problem arises naturally in the context of parallel mixnet servers as well as other security ap...

The aim of the present study was to investigate effects fiber content and then silane treatment on mechanical performance natural composites recycled acrylonitrile–butadiene–styrene (ABS) provided by automotive sector. Wood palmyra fibers were used as fillers in 10% 20% composites. treated with N-(2-Aminoethyl)-3-aminopropyltrimethoxysilane improve interfacial adhesion between polymer matrices....