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...

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...

An experiment was conducted to evaluate marker selection and mix time on mix uniformity in the feed manufacturing process as determined by percent coeffi cient of variation (% CV). A corn-soybean meal based diet was formulated for broiler chicks from d 0 to 17. Dietary nutrients or tracers evaluated included: 1) salt (chloride ion); 2) phosphorus; 3) manganese; 4) iron particles (Micro TracerTM...