The File Searching, Record Validating and Record Formatting Functions of the Supervisor for an Extended Data Management Facility

The purpose of the Supervisor in an Extended Data Management Facility (EDMF) is to direct the Facility\u27s handling of a user\u27s request for service. The Supervisor employs the five main functions of Access Controlling, Retrieval Optimizing, File Searching, Record Validating and Record Formatting in order to accomplish its task. This report is concerned mainly with the design and implementation of the File Searching and Record Validating Functions, although it also covers the Record Formatting Function. The File Searching and Record Validating Functions form that part of the Supervisor which actually controls the retrieval of records from the files of the EDMF. The major part of the report is concerned with discussing the File Searching Function because of the novel feature which has been implemented. This feature is the parallel processing of record lists in a generalized file structure, which eliminates redundant retrievals while at the same time reducing the access time of the device on which the records are stored. The Record Validating Function checks the record for compliance with the user\u27s request and verifies the user\u27s authority to access the record. A validated record is then subject to the Record Formatting Function which outputs it to the user

A global approach for a dictionary of Lingála: from the localization of software to a lemmatization strategy

Lingála is the national language spoken in Kinshasa, the capital of the country. Even if this language is going through a straightforward empowering process, its progress is still hindered by the lack of terminological and lexicographic tools; hence the need of providing monolingual or plurilingual dictionaries for this language, according to what is a demand of society. This is why we have undertaken this research on lexicography. It consists in producing lexicons as teaching aids and in making them available to primary users, i.e. teachers and students. In this communication, firstly, we will observe the approach followed by authors of existing Lingála dictionaries (monolingual and bilingual). This review aims to improve, if necessary, the presentation of entries, so as to help readers find the words they are looking for. The variations in the current spoken language (the so-called Kinshasa Lingála) and in the so-called standard language (Makanza Lingála) will be important in the choice we will make for recording occurrences in the dictionary. This concerns the orthography of words, as well as lemmatized forms and register. Secondly, we will describe the process of localization of software we will use to process the corpus. Finally, we will also very briefly describe the corpus we are processing

A seismic study of crustal structure in the region of the western isles of Scotland

In November 1979, the Department of Geological Sciences, University of Durham, in conjunction with the Department of Geology, University of Glasgow, carried out a marine seismic refraction survey between Barra In the Outer Hebrides and Girvan on the Ayrshire coast. In August/September 1981, a shorter profile, between Mull and Kintyre, was undertaken. Temporary recording stations were set up on land and explosives and alrguns used as sources at sea. In addition, data were obtained from the permanent recording networks in Scotland. The application of digital filtering techniques to the alrgun lines Is presented and reviewed. The explosive shot data were interpreted using time-term analysis, the plus- minus method and ray-tracing. Gravity and magnetic studies were used as a control on the interpretation. The depth to the basin has been examined, indicating sedimentary cover of between 1 and 3 km along the line. The variation in basement velocity has been determined. A velocity model for the upper crust has been developed indicating large lateral changes. A steep gradient Is thought to exist between Golonsay and Jura and a more gentle gradient beneath Mull. There does not seem to be evidence for a mid-crustal refractor with a sharp velocity transition across the boundary. Large changes In Pn time-terms across the Minch and Inner Hebrides basin are thought to be largely due to the varying velocity structure of the basement. The basin formation and deformation of the lower crust are thought to Involve movement within the mantle

NOVEL TECHNIQUES FOR INVESTIGATING THE PERMEATION PROPERTIES OF ENVIRONMENTALLY-FRIENDLY PAPER COATINGS: The influence of structural anisotropy on fluid permeation in porous media

In this study, we have investigated the effects of structural anisotropy of porous media on the permeation of fluids. The motivation for the work was an increased understanding of the permeation of inks into paper coatings, which often contain platey or needle-like particles, which have been aligned during the coating process. However, the findings are also relevant to other systems, such as the sub-terranean migration of fluids, including pollutants, within shale that contains particles of high aspect ratio. Mineral pigments, comprising mainly of calcium carbonate or clay, are often are applied to the surface of paper to improve optical and printing properties. For a high quality image to be achieved, the coating should have sufficient capillarity to allow the ink film to set within the time-scale of a modern printing press. The permeation of fluids into a range of different coating formulations has been investigated, with its main focus on the following samples: Speswhite and Amazon90 SD, which belong to the Kaolin (day) mineral group, and OpacarbA40 and Albaglos, which belong to the Precipitated Calcium Carbonate (PCC) mineral group. The permeation was measured by five different techniques, including a novel use of the Ink Surface Interaction Tester. The results were modelled using a modified version of the software package ‘Pore-Cor’, which simulated both permeability and capillary absorption of a wetting liquid into porous media containing anisotropic voids, and allowed the effects of anisotropy to be isolated from other closely related pore properties. The model generated a simplified three-dimensional void network having pores with a rectangular cross-section and throats with an elliptic cross-section. From visual inspection of the modelled structures, the effect of anisotropy revealed advance wetting in the narrow features of Speswhite-CL and OpacarbA40-CL. Overall, to gain a clear understanding of the permeation of anisotropic structures both inertia and surface throat density is needed to be included in the Pore-Cor model. Once these factors were applied to the model, it was able to predict the permeation of fluids more successfully than those predicted by the Kozeny and aligned cylinders models. The insights gained from this study have allowed conclusions to be drawn about the nature of fluid permeation; they have therefore opened the way to more sophisticated modelling and the engineering of high performance coating structures.SCA Graphic Research AB, Sundsvall, Swede