Provably Secure Convertible Directed Partially Blind Signatures

Combining the concept of partially blind signature with the concept of directed signature, we introduce a new concept of convertible directed partially blind signature （CDPBS）, in which only the signer and the user can verify, confirm and disavow the validity of given signatures and convert given signatures into universally verifiable ones, to meet the need of signing personally or commercially sensitive messages. We give a formal definition of CDPBS and propose a concrete provably secure CDPBS scheme. The proposed scheme is efficient and secure, in which its unforgeability is the same as that of the Schnorr＇s signature scheme and its untransferability relies on the hardness of the decisional Diffie-Hellman problem. Furthermore, by letting the user＇s private key be a common constant, the proposed scheme can be used as a normal partially blind signature scheme.     

Subposition assembly-based construction of non-frequent concept semi-lattice

An efficient way to improve the efficiency of the applications based on formal concept analysis (FCA) is to construct the needed part of concept lattice used by applications. Inspired by this idea, an approach that constructs lower concept semi-lattice called non-frequent concept semi-lattice in this paper is introduced, and the method is based on subposition assembly. Primarily, we illustrate the theoretical framework of subposition assembly for non-frequent concept semi-lattice. Second, an algorithm called Nocose based on this framework is proposed. Experiments show both theoretical correctness and practicability of the algorithm Nocose.     

National Interests in the Background of Globalization

As can be seen from the international political theory.National interests are the motivation of all countries ’diplomatic activities but also the priory considered by policy makers.In the background of globalization,traditional concept of national interests is impacted.How to define,protect and achieve national interests comes to be a crucial issue for every state.     

The Translatology Process of the Word ‘Gaze’ in Chinese Context

With reference to the concept of ‘cultural studies’ and certain modern theories in translation studies,this essay makes a general analysis of the translation and introduction of the ‘gaze’ concept in China.On the basis of this analysis,it explores how this concept spread to China and why,this concept was explained and rewritten through translation and interpretation in the course of the spread;and what responses and reflections we should bear during the process.     

A Proxy Blind Signature Scheme Based on DLP

0 Introduction The concept of blind signature was firstly intro- duced by David Chaum in 1982[1]. Since then, scholars have tried their best to propose various blind signature schemes and applied them to some security systems, such as e-cash and e-voting …     

Relative damage stress and its application in the case of temperature cycling load

Void damage is the main failure characteristics of constrained ductile metal foil. In order to evaluate the mechanical response of ductile metal under different temperatures, the concept of equivalent damage stress proposed by Lemaitre is modified by temperature normalization. A new concept of relative damage stress is advanced, and in the light of this concept, a reasonable explanation is given to the thermal fatigue life data of solder joints under temperature cycling.     

Reconstructing Concept Lattices Using n th.Order Context Kernels

0 IntroductionSince the concept lattice theory was set upin the 1980s ,concept lattices have been considered as mathematicmodels of knowledge process for years[1]. However ,the ti meand space complexity of concept lattices constructionis along-standing barrier on the way of application of concept latticetechnologies . To solve the problem,several techniques weredeveloped[2 ,3].Refs .[4-6] concentrated on incremental algo-rithms i mprovement . Ref .[7] presented an approach on re-duction of at…     

Authorization Management Framework Based on Joint Trust-Risk Evaluation

0 Introduction Trust management[1-3] is an approach to managing authorization in distributed environ- ments. Blaze et al[1] firstly proposed the concept of trust, and took trust into consideration in au- thorizing. Probability computed via historical records is viewed as the grade of trust[4]. Trust is classified into two types: direct trust and recom- mendation trust. But modeling the subjective trust with the simple probability and expressing the integration of multi recommendation trusts b…     

Entransy analysis of open thermodynamic systems

The concept of entransy developed in recent years can describe the heat transport ability.This paper extends this concept to the open thermodynamic system and defines the concept of enthalpy entransy.The entransy balance equation of steady open thermodynamic systems,as well as the concept of entransy loss,is developed.The entransy balance equation is applied to analyzing and discussing the air standard cycle.It is found that the entransy loss rate can describe the change in net power output from the cycle but the entropy generation rate cannot when the heat absorbed by the working medium is from the combustion reaction of the gas fuel.When the working medium is heated by a high temperature stream,both the maximum entransy loss rate and the minimum entropy generation rate correspond to the maximum net power output from the cycle.Hence,the concept of entransy loss is an appropriate figure of merit that describes the cycle performance.     

THE CONCEPT OF PROBE DETECTOR AND ITS APPLICATION IN GEOMETRIC MODELING

The concept of′Probe detector′is introduced in this paper with its application in geometricmodeling and graphics.In terms of the concept,the authors derive edge data from the CSG datarepresentation and establish a wireframe model.     

Reality over Web： Pervasive Computing Meets the Web

Reality over Web （ROW） is a novel concept, where a window on the web corresponds to a window onto a real space. Once the correspondence is established, users should be able to interact or manipulate the objects or people in the real space through the web window. In this paper, we introduce the RoW concept and highlight the principles that govern its design and implementation. A system architecture for realizing the RoW concept is described along with a proof-of-concept prototype that implements portions of the RoW concept. One essential part of an RoW implementation is accurate Iocationing of objects and people in a video frame. The Iocationing problem becomes particularly challenging because we want to reuse existing infrastructure as much as possible. We developed a high-frequency sound-based Iocationing scheme and implemented it on the prototype. The results from initial experiments performed on the Iocationing scheme are reported here.     

A Creep Equation Based on Thermal Activation

The creep equation proposed in so called θ projection concept is developed in the concept of thermal activation of creep. The measured creep curves of A286 alloy are fitted by the equation. The activation energy in the equation is evaluated, and creep rupture lives are predicted. The results are confirmed by creep tests of up to 13 years.     

Set （ k, n ）-Exactly covering problem

<正> With the (k,n) -threshold scheme of secret sharing in the field of information security technology asan application background,the concept of set ( k,n)-exact cover is presented in this paper.It is a modificationof the original concept of set covering problem.It is also different from the concept of exact coverdefined by J.E.Hopcroft.Some properties of ( k,n) -exact cover are investigated;a sufficient conditionfor a set to be ( k,n ) -exactly coverable is given.It follows that a feasible assignment scheme of a set forthe (k,n) -exact cover is obtained if this set satisfies the sufficient condition.     

Knowledge Automatic Indexing Based on Concept Lexicon and Segmentation Algorithm

This paper is based on two existing theories about automatic indexing of thematic knowledge concept. The prohibit-word table with position information has been designed. The improved Maximum Matching-Minimum Backtracking method has been researched. Moreover it has been studied on improved indexing algorithm and application technology based on rules and thematic concept word table.     

PRELIMINARY STUDY ON OPEN END JET SPINNING

A new concept of spinning-open-end jet-spinning, which combines the advantages of the false twist jet spinning and open end winning, was proposed, and a device was designed to practice this concept. The property of thc open-end jet spun yarn was measured and discussed in comparison with that of some other spun yarns.     

The New Time-Spatial Information System

In this paper,the author puts torward a new concept Time-Spatial information system, which is based on the old Geo-information system during such a present era. The new concept is just very right whichever you comprehend in breadth or depth and give you more valuable information to research time-space information svstem as welh     

VCN & Its Role of Engineering in Human Society

A novel broad concept of numbers was given out based upon the analyzing of numbers＇ carrying rule. In international mathematics ＆ computer science, all researches on numbers are only confined to same varying rule of the FCN （fixed carrying numbers）. The concept of VCN （variable carrying numbers） was presented, and some applied examples of practice were given out. So the engineering application of VCN for n-figures is wider than that of FCN in human society.     

From digital Earth to smart Earth

This article will analyze the achievements of the digital Earth concept and further introduce two key technologies,the internet of things and cloud computing.Both these technologies are accelerating the development of digital Earth toward a new concept—smart Earth.The objective of this article is to discuss the architecture,infrastructure,and typical applications for smart Earth and to elaborate on trends of the movement from digital Earth to smart Earth.     

Mining incomplete data—A rough set approach

Many reallife data sets are incomplete, or in different words, are affected by missing attribute values.Three interpretations of missing attribute values are discussed in the paper: lost values (erased values), attributeconcept values(such a value may be replaced by any value from the attribute domain restricted to the concept), and “do not care” conditions (a missing attribute value may be replaced by any value from the attribute domain).For incomplete data sets three definitions of lower and upper approximations are discussed.Experiments were conducted on six typical data sets with missing attribute values, using three different interpretations of missing attribute values and the same definition of concept lower and upper approximations.The conclusion is that the best approach to missing attribute values is the lost value type.     

THE STUDY ON TCF BLEACHING OF NS REED PULP

The development of science and technology brings abundance materials, however, it also causes severity industry pollution. At the same time, the requirement to improve the environment quality is becoming strongly. It is necessary to solve this tough conflict. The traditional concept on this problem is to deal with the pollution after the industry pollution has occurred. The modern concept on this problem is to eliminate the pollution before it is produced by modern technology and modern equipm…