Coordination of a power system with the phasor measurement devices in real time on the load and generation sides is carried out within the context of smart grid studies. Power systems equipped with information systems in a smart grid pace with external security threats. Developing a smart grid which can resist against cyber threats is considered indispensable for the uninterrupted operation. In this study, a two-way secure communication methodology underpinned by a chaos-based encryption algorithm for PMU devices is proposed. The (...) proposed system uses the IEEE-14 busbar system on which the optimum PMU placement has been installed. The proposed hyperchaotic system-based encryption method is applied as a new security methodology among PMU devices. The success of results is evaluated by the completeness of data exchange, durations, the complexity of encryption-decryption processes, and strength of cryptography using a microcomputer-based implementation. The results show that the proposed microcomputer-based encryption algorithms can be directly embedded as encryption hardware units into PMU and PDC devices which have very fast signal processing capabilities taking into considerations the acceptable delay time for power system protection and measuring applications and quality metering applications which is 2 ms and 10 ms, respectively. While proposed algorithms can be used in TCP or UDP over IP-based IEEE C37.118, IEC 61850, and IEC 61850-90-5 communication frameworks, they can also be embedded into electronic cards, smartcards, or smart tokens which are utilized for authentication among smart grid components. (shrink)

Two Sanskrit works on Vedanta and Advaita philosophy.

Lectures on Sankhya philosophy and contribution of Kaṇāda and Pāṇini; lecture series organized by Centre for Vedanta Studies, University of Kerala with the financial assistance from the Ministry of Human Resource Development, Government of India during the Sanskrit year 2000.

On fundamentals of Hindu philosophy and illusion.

Zahirites; Islamic philosophy; knowledge, theory of (Islam).

This volume represents the state of the art in research on the controversial Muslim legal scholar, theologian and man of letters Ibn azm of Cordoba (d. 456/1064), who is widely regarded as one of the most brilliant minds of Islamic Spain.

La méthode critique et historique adoptée par S. al `Azm touche aux divers domaines et révèle son souci de traiter de n'importe quel fait en vertu des exigences de l'esprit scientifique. lI s'en sert pour accéder à des vérités établies sur des bases réelles et scientifiques tout en récusant l'approche conceptuelle et figée de la réalité. Ne visant pas uniquement et arbitrairement la déconstruction des idéologies religieuses et politiques, il conçoit une société arabe affranchie des contraintes aveugles exercées par l'autorité (...) politique et religieuse. Une société débarrassée de ses illusions religieuses ainsi que de ses appartenances confessionnelles et fanatiques, et fondée sur des bases laïques et socialistes. (shrink)

Study of the description of the importance of environmental and ecological balance and its consciousness in Indic philosophy.

Study on the ecology and environment awareness in Indic philosophy.

The author briskly gives the principles of criticism which he will follow in examining Kant's theory of time, and the distinctions between absolute time, psychological time, and the duration of events and processes which must be made in order to deal with the time theories of Kant and his great predecessors Newton and Leibniz and their defenders. Al-Azm then follows Kant's writings from 1747 through his brief conversion to the Newtonian "receptacle" theory, through the critical period. He considers the Dissertation (...) of 1770, at least in so far as it deals with space and time, to belong to the latter. The principles of criticism are especially relevant to Al-Azm's interpretation of Kant's time doctrine in the critical period. He holds that we must carefully bear in mind Kant's alternation of analytic and synthetic methods, and their dialectic interplay. If we do so, we can explain away the "patchwork" theory of Kemp Smith and others, as the obscurities and apparent inconsistencies and paradoxes which are resolvable in the light of the roles played for Kant by the approaches he employs. Within the first Critique, the teachings on time in the Aesthetic and the Analytic constitute a "genuine dialectic of a highly complex order." Thus, Kant's final position should be sought in the progressive modifications of the preliminary position. Al-Azm regards the Aesthetic as offering merely provisional statements on the subject of time, reached by a process of analysis, at an early dialectical stage, and offering a starting point for a fresh stage in analysis which aims "at the unveiling of the synthetic processes of the understanding." This is accomplished in the Analytic. In a last section, on the first Antinomy, the author considers Strawson's essay, The Bounds of Sense, published in 1966, and cites passages which he feels defend Kant's theory of time, seen in its relation to the critical philosophy, as successfully against Strawson's interpretation as against the claims of its Leibnizian and Newtonian rivals.--M. B. M. (shrink)

ExcerptThe goal of war is victory, which means that one’s opponent should lose. Part of war is the victor’s imposition of his will on the opponent, compelled to face the experience of defeat and its consequences. Despite the platitude that history is written by the victors, the defeated party too has a role to play, since it cannot escape the cruel reality of loss. Defeat is part of war, but the defeated may respond to the loss in different ways, with (...) important consequences for their futures. (shrink)