This paper deals with the problem of security-based dynamic output feedback control of cyber-physical systems (CPSs) with the dual-terminal event triggered mechanisms (DT-ETM) under false data injection (FDI) attacks. Considering the limited attack energy, FDI attacks taking place in transmission channels are modeled as extra bounded disturbances for the resulting closed-loop system, thus enabling H∞ performance analysis with a suitable ϱ attenuation level. Then two buffers at the controller and actuator sides are skillfully introduced to cope with the different transmission delays in such a way to facilitate the subsequent security analysis. Next, a dynamic output feedback security control (DOFSC) model based on the DT-ETM schemes under FDI attacks is well constructed. Furthermore, novel criteria for stability analysis and robust stabilization are carefully derived by exploiting Lyapunov-Krasovskii theory and LMIs technique. Finally, an illustrative example is provided to show the effectiveness of the proposed method.
We modify slightly the definition of H-partial functions given by Celani and Montangie (2012); these partial functions are the morphisms in the category of H∨-space and this category is the dual category of the category with objects the Hilbert algebras with supremum and morphisms, the algebraic homomorphisms. As an application we show that finite pure Hilbert algebras with supremum are determined by the monoid of their endomorphisms.
Historická věda a archivnictví jsou vědy příbuzné. Předkládaná studie má za cíl představit jeden z příkladů, jakým způsobem by se mohly zmíněné dvě vědy vzájemně obohacovat, ovlivňovat, působit na sebe. Autor vyšel z jednoho z méně známých historiografických směrů duchových dějin (Geistesgeschichte) a pokusil se ukázat, v čem by tento směr mohl obohatit, rozšířit teoretické postupy v rámci jedné oblasti archivní teorie (a praxe), totiž oblasti archivního výběru, respektive archivního hodnocení. Studie se v této souvislosti soustředí především na otázku možných kontextů, v rámci nichž lze dokument chápat a tedy také hodnotit. Vedle kontextu vlastní organizace původce dokumentu, kontextu příbuzných organizací a společenského kontextu zjišťuje také široký kontext doby, v níž a z níž lze dokumentu rozumět a jej hodnotit. V této oblasti by pak archivní vědě mohly být nápomocny právě duchové dějiny, které se soustředily na zkoumání, co to je duch doby, jak se projevuje, jak jej lze vysledovat. A je to také pojem doby, který se začíná vyskytovat v debatách okolo archivního hodnocení. Objevuje se mimo jiné v diskusích v Německu, týkajících se v současné době vyvíjeného modelu archivního hodnocení nazvaného „vertikale und horizontale Bewertung“. V neposlední řadě se článek dotýká otázky, jakou cestou by se napříště mohlo archivní hodnocení vydat. Je pravděpodobné, že stále důležitější roli budou nabývat spisové plány a jejich struktura, podle níž budou dokumenty (i elektronické) vybírány, ale také v níž budou uchovávány., History and archival science are related sciences. This article presents one of examples, how these sciences can enrich and influence each other. The author considers one of the less known field of research in history – intellectual history (in german Geistesgeschichte) and tries to demonstrate, how intellectual history can enrich and help to develop theoretical approaches within archival appraisal as one field of archival theory and practice. In this respect the paper concentrates primarily on the question of possible contexts in which we can understand and thus also appraise the document. In addition to context of the organisation of creator, to context of related organisations and to social context it is also the large context of age in which and from which it is conceivable to understand and appraise the document. In this domain intellectual history could be helpful to archival science because of concentrating on research what is the spirit of the age (in German Zeitgeist, in Czech duch doby), how it is manifested, how we can determine it. It is also the idea of spirit which begins to appear in the discussions concerning archival appraisal. The conception of the spirit appears i.a. in the debates concerning the model of the “vertical and horizontal appraisal” currently developed in Germany. Last but not least the article asks in which course archival appraisal should aim. It is presumable that the records schedules and their structure will obtain more and more importance. This (hierarchic) structure determines not only how the documents (also electronic documents) will be appraised but also in which order they will be preserved. (Translated by Mikuláš Čtvrtník and Simona Filová.), Překlad resumé: Mikuláš Čtvrtník, and Překlad resumé: Simona Filová
Zpráva o výroční konferenci České společnosti pro hudební vědu, uskutečněné v Praze 29. - 30. listopadu 2013., Jarmila Gabrielová, Jana Vozková., Rubrika: Konference, and Cizojazyčné resumé není.
The article tries to characterise the spiritual life of a group of members of the Czech Reformed exile community in Husinec near Strzelin in Silesia at the turn of the 18th and 19th century. It starts with a detailed analysis of a unique manuscript miscellany written there by certain senior Bureš in 1833 and containing Czech translations of various German texts, mostly sermons (especially of the famous Pietistic preacher Ludwig Hofacker), but also travel diaries of Herrnhut missionaries in North America and Greenland from the 1770s, translated by a certain J. S., probably the former local teacher Jan Sovák. It identifies both the scribe and the translator as diaspora sympathizers of the Herrnhut Unitas, striving to supply for themselves and other members of their community spiritual texts suitable for reading aloud during their worship. As a possible model for the miscellany, the article identifies Gemeinnachrichten, the German manuscript periodical of the Unitas, which also combined sermons with missionary reports and diaries and was accessible to a limited extent to diaspora sympathizers. Finally, the article characterizes the spiritual life of the Husinec diaspora as rather eclectic, but capable of active reception of various Pietistic spiritual impulses, partly, but not exclusively emanating from the Unitas. This seems to support the thesis that Early Modern Czech non-Catholic exile played an important role in the Czech-German literary, cultural and religious relations., Alena A. Fidlerová., and Obsahuje bibliografické odkazy
Based on a recent representation of copulas invariant under univariate conditioning, a new class of copulas linked to a distortion of the identity function is introduced and studied.