Showing papers by "University College Cork published in 1970"
45 citations
TL;DR: These blood values will provide normal standards for the pike since normal ranges are wide, and isolated measurements therefore of limited value.
Abstract: The ranges and mean values of haematocrit, red cell, white cell and differential cell counts, red/white cell ratio, red cell fragilities, haemoglobin levels and serum protein concentrations of adult pike Esox lucius L. have been measured, and the serum electrophoretic patterns on cellulose acetate and polyacrylamide gel described and discussed. It is hoped that these blood values will provide normal standards for the pike since normal ranges are wide, and isolated measurements therefore of limited value.
44 citations
TL;DR: Beim HechtEsox lucius L. liess sich ein Lymphosarkom durch zellfreie Filtrate übertragen und damit die Virus-Aetiologie nachweisen.
Abstract: Beim HechtEsox lucius L. liess sich ein Lymphosarkom durch zellfreie Filtrate ubertragen und damit die Virus-Aetiologie nachweisen.
38 citations
TL;DR: The molecular weight of the enzyme was confirmed by peptide mapping and this technique was also used to show that electrophoretically distinct forms of the enzymes were very similar in primary structure.
20 citations
TL;DR: The method which will be subsequently referred to as the Alpha Method is third order, and it compares favourably both for computational time and programming with the normal method of continuing the tabulation beyond the discontinuity and employing inverse interpolation.
Abstract: With discontinuities in the differential equations of an initial value problem it is in general necessary to alter the effective step size to evaluate the variables at the point of discontinuity. Since this latter point is often determined by the values of some or all of the dependent variables it would normally be observed by a checking procedure just prior to updating these dependent variables. A method of calculating the fraction of the interval to the point of discontinuity and of updating the values of the dependent variables to this point is given. The method which will be subsequently referred to as the Alpha Method is third order, and no new evaluation of the function is required. It compares favourably both for computational time and programming with the normal method of continuing the tabulation beyond the discontinuity and employing inverse interpolation.
16 citations
TL;DR: The rate at which anodic oxide films on platinized platinum electrodes react with hydrogen gas dissolved in aqueous phosphoric acid solution was investigated by measuring the amount of oxide remaining on the surface after various periods of reaction.
12 citations
10 citations
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7 citations
TL;DR: In this article, a case of calcifying odontogenic cyst associated with an unerupted maxillary canine tooth has been described, and the case is described in detail.
6 citations
01 Feb 1970
TL;DR: In this article, a digital-computer simulation of a typical convertor station has been developed, with particular attention paid to the influence of the harmonic filter, which must be accurately simulated if the results are to be meaningful.
Abstract: In the practical design of h.v.d.c. convertor installations, a thorough investigation should be made of all the possible component-overstressing situations that may arise for a variety of reasons. This may, for example, be attempted with a scaled-down model of the installation, although the component losses in such a model are usually excessive, and, consequently, measured peak overvoltages and overcurrents tend to err on the low side. To provide the designer with a more flexible and reliable tool for the analysis of the transient behaviour of h.v.d.c. systems, a digital-computer simulation of a typical convertor station has been developed. The paper is chiefly concerned with the accurate simulation of the main circuitry, having particular regard to the more complex modes of operation that arise during valve faults. Particular attention is also paid to the influence of the harmonic filter, which must be accurately simulated if the results are to be meaningful. The computer programs, based on the analysis presented in the paper, have been used successfully to solve the many and varied transient problems that must be considered at the design stage. An example is presented to demonstrate the results obtained with these programs. It is concerned with maintaining a sufficient margin of commutation in an invertor, despite a sudden voltage drop in the receiving a.c. network. The influence of the harmonic filter, in this respect, is clearly demonstrated. The simulation of an overall h.v.d.c. system is quite within the capabilities of the programs that have been developed, which is particularly relevant when the transient performance of a complex d.c. link is to be investigated. The present paper does not, however, concern itself with details of practical or theoretical control systems for such links.
TL;DR: The survey showed that 640,000 general diagnostic radiological examinations are carried out in Ireland each year, which corresponds to 0.22 radio-logical examinations per head of the population and compares closely with the corresponding figures for other countries as discussed by the authors.
Abstract: The Survey showed that 640,000 general diagnostic radiological examinations are carried out in Ireland each year. This corresponds to 0.22 radio-logical examinations per head of the population and compares closely with the corresponding figures for other countries. In addition 365,000 Mass X-ray examinations are performed each year.
TL;DR: An accurate method of calculating design sensitivities of behaviour variables, such as displacements and stress, in FE structural shape optimisation problems is presented and results show that the geometric sensitivity calculations are easily carried out using the BEM point tracking approach.
Abstract: This paper presents an accurate method of calculating design sensitivities of behaviour variables, such as displacements and stress, in FE structural shape optimisation problems. Its applicability to unstructured meshes is emphasised. The semi-analytical method is applied to the determination of the design sensitivities of behaviour variables in structural shape optimisation. It is shown how the computation of the geometric sensitivities (i.e. the sensitivity of internal points in the problem domain to boundary perturbations) is a primary task to carry out the sensitivity analysis. A BEM based pointtracking method, which is particularly applicable to unstructured meshes, is developed and used, in conjunction with FT) approximation, to determine these geometric sensitivities. Three benchmark examples, with unstructured meshes, are used to show the application of the method and results from these show that the geometric sensitivity calculations are easily carried out using the BEM point tracking approach. Design sensitivities calculated compare favourably with analytical solutions.