The present article attempts to discuss whether a medical conference poster intended for a specific English-speaking discourse community shares the properties of discourse colony (Hoey 1986). The author analyses 12 e-posters, which were displayed during an international neurological conference, presenting findings on epilepsy treatment. First, the author characterises the conference poster, which is followed by a description of discourse community and discourse colony. Next, the analysis of the e-posters is carried out and the results of the analysis are presented. On the basis of these results it might be said that the medical conference poster could be considered a discourse colony as it shares some of its properties.
The height of the fundamental frequency (F0) is frequently cited as the major acoustic feature that distinguishes the female voice from the male voice. Women tend to have a signifi cantly higher mean F0 than men. Some studies have indicated that the variability of the fundamental frequency also differs between the two genders and women’s voices may involve higher prosodic explicitness than men’s voices. This study investigates the way in which these features are utilised in rendering the voice of male and female characters in the reading aloud of fiction. To achieve this aim, a representative sample of dialogues selected from audiobooks was analysed acoustically. The results reveal that the reader’s F0 tends to slightly increase in fragments with female characters, but other predictions have not been confirmed. There is no decrease of F0 in dialogues with male characters and, in general, the reader’s variability of F0 seems not to be influenced by the character’s gender.
The radiation of sound waves from partially lined duct is treated by using the mode-matching method in conjunction with the Wiener-Hopf technique. The solution is obtained by modification of the Wiener-Hopf technique and involves an infinite series of unknowns which are determined from an infinite system of linear algebraic equations. Numerical solution of this system is obtained for various values of the problem parameters, whereby the effects of these parameters on the sound diffraction are studied. A perfect agreement is observed when the results of radiated field are compared numerically with a similar work existing in the literature.
New computational procedures developed within the framework of international research projects „Grispe” and „Grispe Plus” are briefly presented and characterised here. Considered algorithms pertain to the verification of bearing capacity and serviceability of selected bearing structure components erected with especially shaped thinwalled sheet metal panels. Structural components of this type are so far rather absent from the codes, and as a result the unequivocal design requirements have not been developed for them. Key problems related to the detailed analysis of the following element classes: steel decks with embossments, indentations and/or outwards stiffeners; liner trays; corrugated sheeting; curved profiles; cladding and roof profile assemblies; perforated and holed profiles; external interlocking planks and their assemblies are indicated in the text. The procedures formulated as a part of the projects indicated above have been delivered to CEN as an official proposal of amendments and/or additions submitted for introduction to the new generation of Eurocodes currently under preparation, and especially as an extension to the code EN 1993-1-3.
The subject of this paper is an analysis of the influence of circumferential prestressing on the interaction of cylindrical silos and tanks with the subsoil. The behaviour of the shell structures of RC and PC cylindrical silos or tanks (with circumferential pre-tensioning), and particularly of the ground slab interacting with subsoil, depends largely on the function graphs of the subsoil reactions on the foundation surface. Distributions of the subbase reactions on the ground slab in such structures as silos and tanks have a significant impact on the behaviour of not only the slab itself, but also the interacting shell structure. An analysis of these structures with walls fixed in a circular ground slab and foundation ring was carried out taking into consideration the elastic half-space model using the Gorbunov-Posadov approach and the two-parameter Winkler model. In the computational examples of RC and PC silos and tanks with walls fixed in the circular ground slab or foundation ring, the eventual effects of prestressing obtained as a result of the superposition of internal forces were examined. Although the results for both subsoil models proved to be divergent, the conclusions that follow are fairly important for the engineering practice.
This paper deals with the finite element analysis of the demagnetization process of the line start permanent magnet synchronous motor. Special attention has been paid to demagnetization risk assessment after resynchronization during a short-term supply power outage. The current and torque waveforms have been determined assuming the difference depending initial rotor position angle. It has been demonstrated that the highest demagnetization risk occurs when resynchronization (motor reclosing) is performed whe induced electromotive forces are in anti-phase to the supply voltage waveforms. The effect of cage winding resistance on the risk of demagnetization is examined and discussed.
The denarius of Marcus Junius Brutus, commemorating the Ides of March, can be placed among the coins most established in the collective imagination of ancient societies and, later, among those having the greatest impact on European humanism. One cannot point out another antique coin that refers directly to such a fateful historical event as the assassination of Julius Caesar. Respublica liberata, the work by Andreas Alciatus (1492–1550), printed in 1546, is outstanding among numerous, ancient and modern examples of the reception of Brutus’s coin. Alciatus, a famous Milanese lawyer, composed his work in the innovative form of an emblematic study. Emblematics enjoyed great popularity throughout the sixteenth and seventeenth centuries. Symbols and allegorical representations were used as a universal media for describing the world. The distinguishing representation of daggers and pileus – according to the general idea of emblems – had been separated by Alciatus from its historical context and given a universal and ageless meaning. In this manner, the writer made the ancient iconographical type the general symbol of the liberation of a state from the rule of a tyrant.
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