In this paper, we propose an algebraic approach to investigate the diagnosis of partially observable labeled Petri nets based on state estimation on a sliding window of a predefined length h. Given an observation, the resulting diagnosis state can be computed while solving integer linear programming problems with a reduced subset of basis markings. \blue{The proposed approach consists in exploiting} a subset of h observations at each estimation step, which provides a partial diagnosis relevant to the current observation window. This technique allows a status update with a "forgetfulness" of past observations and enables distinguishing repetitive and punctual faults. The complete diagnosis state can be defined as a function of the partial diagnosis states interpreted on the sliding window. As \blue{the} analysis shows that some basis markings can present an inconsistency with a future evolution, which possibly implies unnecessary computations of basis markings, a withdrawal procedure of these \blue{irrelevant} basis markings based on linear programming is proposed.
The articles gives a summary of measurement units that are used for diagnostic measurements of fluid boilers combustion channels. During the verification process VŠB-TU Ostrava designed and tested various types of probes for temperature and velocity measurements, off-take of both gaseous samples of waste gases and solid particles samples. Taken results gives more detailed information about fluid lyer behaviour for various fluid bed boiler types. Moreover they can be of use in case of boiler modifications or boiler operation improvements. This article is based on the project GA 617 50 11 solving - "Combine combustion of coal and biomass in fluid bed boilers"., Bohumír Čech, Zdeněk Kadlec and Jan Matoušek., and Obsahuje bibliografii
We have found that the determination of thiodiglycolic acid (TDGA) in urine may help to characterize metabolic imbalance of substances participating in methionine synthesis, which leads to hyperhomocystinuria. From the metabolic scheme, based on a proper combination of known facts, we attempted to theoretically explain and to demonstrate the possibilities of TDGA formation via different ways of homocysteine transformation. This scheme was used in evaluating the results obtained by testing urine of a woman suffering from impaired function of methionine synthase reductase (CblE type of homocystinuria). The amount of TDGA excreted in her morning urine was very sensitive to the changes in her treatment based upon a combination of N5-formyl tetrahydrofolate, betaine and vitamin B12. Vitamin B12 given in the evening either alone or together with betaine increased the TDGA excretion in the morning urine up to ten times. On the other hand, in the absence of vitamin B12, betaine in combination with N5-formyl tetrahydrofolate hindered the appearance of TDGA in the morning urine. Generally, the determination of TDGA in urine of an appropriately pretreated patient may indicate the degree of success of the treatment., T. Navrátil, M. Petr, Z. Šenholdová, K. Přistoupilová, T. I. Přistoupil, M. Heyrovský, D. Pelclová, E. Kohlíková., and Obsahuje bibliografii a bibliografické odkazy
Abrasive waterjet cutting monitoring of materials in recent years has become an important area of research. The article deals with potential applications vibration analysis at technological process of cutting of material. In order to provide the vibration analysis at abrasive waterjet cutting, have been carried out experiments to measure vibration and ultrasonic emissions in order to ascertain the context of the parameters measured vibrations with the technology division of aluminium. The main challenge is finding the existence of the link between the focusing tube wear and vibration. and Monitorovanie hydroabrazívneho delenia materiálov hydroabrazívnym prúdom sa v posledných rokoch stalo dôležitou oblasťou výskumu. Článok sa zaoberá možnosťou aplikácie vibrodiagnostiky technologického procesu delenia materiálu. Za účelom zistenia vibrácií pri hydroabrazívnom delení, boli vykonané experimenty zamerané na meranie vibrácií a ultrazvukovej emisie s cieľom zistenia súvislosti meraných parametrov vibrácií s technologickými podmienkami delenia hliníka. Hlavnou úlohou je zistenie existencie súvislosti medzi opotrebovaním fokusačnej trubice a vibráciami.
Pierre-Joseph Proudhon is generally regarded to be one of the founders of anarchism. Anarchism as a political current is most often characterized by its values and attitudes, but the research into it seldom considers how these values and attitudes are connected to the modes of thinking and argumentation of its most prominent representatives. Proudhon is a good example of this. His extensive and varied body of work illustrates the connection between the emancipatory ideals of anarchism and the complexity and polysemy of the non-authoritarian way of thinking. The article attempts to demonstrate his methods of thinking with several examples that treat such basic themes of his work as the question of justice, the problem of property, mutual support (i.e. mutualism) and the political organization of society along federated lines. The article also points to the ambiguous acceptance of Proudhon’s work by individual anarchist currents and also to certain limits to his way of thinking that result from his acceptance of certain problematic starting points. and Pierre-Joseph Proudhon bývá pokládán za jednoho ze zakladatelů anarchismu. Anarchismus jako politický proud je zpravidla charakterizován svými hodnotami a postoji, ovšem málokdy se při jeho zkoumání uvažuje o tom, jak tyto hodnoty a postoje souvisejí se způsoby myšlení a argumentace jeho výrazných představitelů. Proudhon je však právě v tomto ohledu dobrým příkladem. Jeho rozsáhlé a rozmanité dílo ilustruje spojitost mezi emancipačními ideály anarchismu a komplexností a mnohovýznamovostí neautoritativního způsobu myšlení. Stať se pokouší demonstrovat Proudhonovy způsoby myšlení na několika příkladech zpracování takových základních témat jeho díla, jako je otázka spravedlnosti, problém vlastnictví, vzájemné podpory čili mutualismu, či federativního politického uspořádání společnosti. Poukazuje též na nejednoznačné přijetí Proudhonova díla jednotlivými anarchistickými proudy a také na jisté meze jeho způsobu uvažování, vyplývající z přijetí určitých problematických východisek.
The majority of matter in our universe exists at high pressures and high temperature, such as found in the deep interior of planets and stars, beyond those experienced the surface of the Earth. Recent development in high pressure techniques enabled simulation of these conditions in laboratoire and thus investigaton of matter at extreme (high pressures and temperatures) conditions. A static compression technique utilizing a diamond anvil-cell (DAC) is today a well-established technique yielding a wealth of information on the behaviour of highle-compressed materials. It soon became clear that matter can adopt complex structures and can exhibit exotic physical properties under pressure. The DAC is a powerful tool, spread across multiple research disciplines from material science searching for novel materials to planetary sciences shedding light on the most remote parts of our planet., Zuzana Konôpková., and Obsahuje seznam literatury
Ten Southern Hemisphere cephalopod species from six families collected from six localities in western, southern and eastern Australia were examined for dicyemid parasites. A total of 11 dicyemid species were recorded, with three cephalopod species uninfected, four infected by one dicyemid species and three infected by multiple dicyemid species. Dicyemid species prevalence ranged from 24-100%, with observed infection patterns explored due to host size, host life history properties, host geographical collection locality and inter-parasite species competition for attachment sites, space and nutrients. Left and right renal appendages were treated as separate entities and four different patterns of infection by asexual and sexual dicyemid stages were observed. The detection within a single host individual of asexual dicyemid stages in one renal appendage and sexual dicyemid stages in the other renal appendage supported the notion that developmental cues mediating stage transition are parasite-controlled, and also occurs independently and in isolation within each renal appendage. Our study exploring dicyemid parasite fauna composition in relation to cephalopod host biology and ecology therefore represents a thorough, broad-scale taxonomic analysis that allows for a greater understanding of dicyemid infection patterns.