We investigate the receipt-freeness issue of electronic voting protocols. Receipt-freeness means that a voter neither obtains nor is able to construct a receipt proving the content of his vote. [Hirt01] proposed a receipt-free voting scheme by introducing a third-party randomizer and by using divertible zero-knowledge proof of validity and designatedverifier re-encryption proof. This scheme sat...

In this thesis we study two routing problems related to mobility. The first problem concerns scalable multicast routing when there is a large number of multicast groups with a small number of receivers. Existing dense and sparse mode routing protocols have the following problems when the number of groups is large, but the groups are small: (1) high overhead in control traffic (dense mode), (2) ...

Abstract Phase change processes of supercooled droplets at different boundary conditions are presented. This study is a summary the current developments within subproject B1 SFB-TRR 75 with focus on evaporation, sublimation, and freezing droplets. To this end, new numerical methods to describe phase transition were developed novel strategies dealing challenges under extreme The solution procedu...

The text classification problem for natural language call routing was considered in the paper. Seven different term weighting methods were applied. As dimensionality reduction methods, the feature selection based on self-adaptive GA is considered. k-NN, linear SVM and ANN were used as classification algorithms. The tasks of the research are the following: perform research of text classification...

In this paper, the exergoeconomic analysis was conducted to an existing ultra-supercritical coal-fired power plant in China to understand the cost-formation process, to evaluate the economic performance of each component and to find possible solutions for more cost-effective designs. The total revenue requirement (TRR) and the specific exergy costing (SPECO) methods were applied for economic an...

To some braiding R of Hecke type (a Hecke symmetry) we put into correspondence an associative algebra called the modified Reflection Equation Algebra (mREA). We construct a series of matrices L(m), m = 1, 2, ... with entries belonging to such an algebra so that each of them satisfies a version of the Cayley-Hamilton identity with central coefficients. We also consider some quotients of the mREA...

Povzetek. Načrtovanje in analiza globalnih komunikacijskih arhitektur in protokolov ponavadi zahtevata podporo simulacijskih modelov. Modeli omrežij avtonomnih sistemov pri tem ne smejo ignorirati tipov poslovnih relacij. V članku podamo analizo vpliva tipov relacij na omejitve pri usmerjanju v omrežjih avtonomnih sistemov. Poudarjamo, da je v nekaterih primerih upoštevanje poslovnih relacij po...

We propose a gauge model of quantum electrodynamics (QED) and its nonabelian generalization from which we derive knot invariants such as the Jones polynomial. Our approach is inspired by the work of Witten who derived knot invariants from quantum field theory based on the Chern-Simon Lagrangian. From our approach we can derive new knot and link invariants which extend the Jones polynomial and g...

Este artigo tem por objetivo descrever a experiência na implantação e condução do trabalho TRR em um hospital público pediátrico 100% SUS, indicando fatores que funcionaram como facilitadores dificultadores desta implantação. Realizado estudo descritivo, qualitativo, tipo relato de experiência. Na enfermaria A HINSG/Milena, foram identificados vários para esta implantação, dentre elas o envolvi...