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The Characterisation Of Engine Oils By Liquid Chromatography With Luminescence Detection, Simon Wyndham Lewis Jan 1994

The Characterisation Of Engine Oils By Liquid Chromatography With Luminescence Detection, Simon Wyndham Lewis

School of Geography, Earth and Environmental Sciences Theses

This thesis describes the development of pre column derivatisation reactions for the selective determination of organic functional groups in oxidised oils by liquid chromatography (LC) with luminescence detection. The testing of oils for oxidative stability and the current methods of oil analysis are reviewed in chapter one. An overview of LC and luminescence spectrometry, with particular regard to chemiluminescence (CL) is also presented. Chapter two is a flow injection investigation of the experimental variables of the peroxyoxalate CL reaction. Two aryl oxalates; bis(2,4-dinitrophenyl)oxalate and bis(2,4,6-tricblorophenyl)oxalate were compared for their suitability to LC detection. A charge coupled device (CCD) was used …

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The Day-To-Day Work Of Primary Headteachers: An Ethnographic Study, Roger James Revell Jan 1994

The Day-To-Day Work Of Primary Headteachers: An Ethnographic Study, Roger James Revell

Plymouth Institute of Education Theses

There is a scarcity of empirical data on the nature of primary headteachers' work. Our understanding has to rely heavily on managerial studies or prescriptive commentaries. The study is an ethnographic investigation of my headship and that of other headteachers, using perspectives drawn from symbolic interactionism. Data-collection is by means of open-ended interviews and a one-year journal of my own headship. The findings of the study indicate that the daily work of heads is intense, immediate, pragmatic, discontinuous and unremitting. There are often few opportunities for heads during the day to reflect or make other than short-term plans. Much of …

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Marine Traffic Engineering In Korean Coastal Waters, Jin-Soo Park Jan 1994

Marine Traffic Engineering In Korean Coastal Waters, Jin-Soo Park

Other Faculty of Science and Engineering Theses

This study describes and discusses the marine casualties, the effectiveness of existing traffic services, and marine safety and Vessel Traffic Service(VTS) in Korean coastal waters. Marine traffic is comprehensively assessed in Korean waters, an analysis of casualties is undertaken by block scheme. Marine environmental parameters are identified relating to marine casualties as appropriate. Various statistical techniques are employed to evaluate the inter-relationships between individual causal factors, and for the first time effect level is instituted to quantify the relative importance of the causal factors in Korean waters. A further innovation is the examination of the adequacy of existing Korean traffic …

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Navigational Efficiency In Marine Traffic Operations In The Port Of Keelung, Bin Lin Jan 1994

Navigational Efficiency In Marine Traffic Operations In The Port Of Keelung, Bin Lin

Other Faculty of Science and Engineering Theses

The rapid economic growth of Taiwan has been paralleled by an increase in marine. traffic in the port of Keelung. The increase has been evolutionary and, prior to this study, has lacked the benefit of supporting research necessary to ensure no loss in navigational efficiency. The study uses eclectic methodologies to: identify the nature of marine traffic at Keelung; assess the associated risks; and identify measures needed to reduce risk and increase navigational efficiency. For contextual purposes the study reviews current marine traffic operations at Keelung against the background of geographical constraint and environmental conditions. Radar survey and extensive sampling …

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Design Practice In The Uk Car Industry: How Coventry University Is Addressing The Needs, Aj Robotham, R Perks, Rm Jones, Gn Blount Jan 1994

Design Practice In The Uk Car Industry: How Coventry University Is Addressing The Needs, Aj Robotham, R Perks, Rm Jones, Gn Blount

School of Engineering, Computing and Mathematics

This paper considers the needs of the UK car industry and identifies specific situations that have serious implications upon design practice. The response at Coventry University to these needs and how Design plays a major role in our programmes of study is discussed. The undergraduate course in Automotive Engineering Design is highlighted as an example of our approach to Design Education. We introduce our PAKTS model for Design Education. This model is a convenient means of expressing our aspirations and reflects our dedication to the development of professionally trained engineering designers. The model recognises the importance of the University and …

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Structural Integrity Assessment Using Vibration Data, Olusegun Saheed Salawu Jan 1994

Structural Integrity Assessment Using Vibration Data, Olusegun Saheed Salawu

School of Engineering, Computing and Mathematics Theses

Engineering structures need to be assessed as part of activities to ensure their continued serviceability. Global methods of assessment which also give an indication of local conditions are most attractive since they are cost effective and flexible. A suitable method with these attributes is vibration monitoring which involves relating dynamic properties, or changes in them, to the integrity of the assessed structure. The present study investigates the application of vibration testing to structural integrity assessment of civil engineering structures. A survey of existing methods of damage detection, location and quantification in structures using vibration testing was conducted. Evaluation of the …

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Physiological Factors Regulating Appetite In The Lesser Spotted Dogfish Shark, Scyliorhinus Canicula (L.), David William Sims Jan 1994

Physiological Factors Regulating Appetite In The Lesser Spotted Dogfish Shark, Scyliorhinus Canicula (L.), David William Sims

School of Biological and Marine Sciences Theses

Some aspects of digestive and systemic function were investigated in relation to their role in the peripheral regulation of appetite in juvenile and adult, S. canicula. This study represents the first evaluation of the physiological factors that contribute to the control of shark appetite. Daily food intake trials on both juvenile and adult dogfish showed repeatable, self-regulated feeding rhythms indicating the existence of an endogenous component to food intake control. After dogfish consumed satiation meals of 7% wet body weight (wbw) the appetite return increased at constant rates as deprivation time increased. The relative rate of food processing was 50% …

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Development And Testing Of An Instrument To Measure Estuarine Floc Size And Settling Velocity In Situ, Michael Jim Fennessy Jan 1994

Development And Testing Of An Instrument To Measure Estuarine Floc Size And Settling Velocity In Situ, Michael Jim Fennessy

School of Biological and Marine Sciences Theses

An instrument has been developed to observe the settling of individual flocs in turbid water in order to to measure size and settling velocity spectra of estuarine cohesive suspended sediments. INSSEV - IN Situ SEttling Velocity instrument - is bed mounted and comprises a computer controlled decelerator chamber that collects a sample of water from which some of the suspended matter is allowed to enter the top of a settling column. The settling flocs are viewed using a miniature video system. Subsequent analysis of video tapes provides direct measurements of size and settling velocity of individual flocs down to 20 …

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Effect Of Copper On The Gill Structure Of A Euryhaline Crab, Carcinus Maenas (Crustacea: Decapoda), Sarah Louise Lawson Jan 1994

Effect Of Copper On The Gill Structure Of A Euryhaline Crab, Carcinus Maenas (Crustacea: Decapoda), Sarah Louise Lawson

School of Biological and Marine Sciences Theses

A posterior gill of the common shore crab Carcinus maenas (Crustacea:Decapoda) was used to study the effects of sublethal copper concentrations on gill morphometry, and gill cell ultrastructure and distribution. Primarily, the ultrastructure and distribution of gill cells in the untreated gill of crabs acclimated to 35‰ seawater were characterised. Gill ultrastructure was subsequently shown to vary markedly at 10‰ compared to 35‰ seawater. Ultrastructural and distributional, rather than gross morphological, change occurred in the gill following exposure to copper at each salinity. Ultrastructural studies showed that as the length of copper exposure increased the gill epithelial layer became highly …

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Spplementary Prescribing By Pharmacists: A New Opportunity?, Gj Sewell Feb 1993

Spplementary Prescribing By Pharmacists: A New Opportunity?, Gj Sewell

School of Health Professions

No abstract provided.

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A Portable Battery-Powered Flow Injection Monitor For The In Situ Analysis Of Nitrate In Natural Waters, Nj Blundell, A Hopkins, Pj Worsfold, H Casey Jan 1993

A Portable Battery-Powered Flow Injection Monitor For The In Situ Analysis Of Nitrate In Natural Waters, Nj Blundell, A Hopkins, Pj Worsfold, H Casey

School of Geography, Earth and Environmental Sciences

The design and performance of a portable, automated flow injection (FI)-based photometric monitor are described. The system is controlled by an in-house microcomputer system that enables the monitor (including a solid state detector) to operate from a 12 V battery supply. The monitor uses the cadmium reduction/diazotization method to analyse for nitrate with a linear range of 0 to 12 mg l-1 and a limit of detection of 0.05 mg l-1 (NO3-N). The hardware and software design, monitor performance and results obtained during unattended operation are presented.

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A Portable Battery-Powered Flow Injection Monitor For The In Situ Analysis Of Nitrate In Natural Waters., N. J. Blundell, A. Hopkins, P. J. Worsfold, H. Casey Jan 1993

A Portable Battery-Powered Flow Injection Monitor For The In Situ Analysis Of Nitrate In Natural Waters., N. J. Blundell, A. Hopkins, P. J. Worsfold, H. Casey

School of Geography, Earth and Environmental Sciences

The design and performance of a portable, automated flow injection (FI)-based photometric monitor are described. The system is controlled by an in-house microcomputer system that enables the monitor (including a solid state detector) to operate from a 12 V battery supply. The monitor uses the cadmium reduction/diazotization method to analyse for nitrate with a linear range of 0 to 12 mg l(-1) and a limit of detection of 0.05 mg l(-1) (NO(3)-N). The hardware and software design, monitor performance and results obtained during unattended operation are presented.

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Flow Injection And Multivariate Calibration Techniques For Process Analysis, Paul Maclaurin Jan 1993

Flow Injection And Multivariate Calibration Techniques For Process Analysis, Paul Maclaurin

School of Geography, Earth and Environmental Sciences Theses

The role of process analytical chemistry is summarised in chapter one with particular emphasis on a multidisciplinary approach and the instrumental requirements for on-plant analysis. These concepts are extended to process FIA, highlighting its potential for simultaneous multicomponent determinations. The development of an automated FIA monitor for the on-line determination of sulphite in potassium chloride brine is covered in the second chapter. Reaction stability is demonstrated and the results of on-plant validation and on-line trials are presented. The next chapter deals with the concepts of multivariate calibration. Direct multicomponent analysis, principal components regression and partial least squares regression are critically …

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An Investigation Of The Thermophysical Properties Of Hydrofluoroalkanes, And The Contribution Of Halocarbons To The Chlorine/Bromine Loading Of The Atmosphere, David Christian Dowdell Jan 1993

An Investigation Of The Thermophysical Properties Of Hydrofluoroalkanes, And The Contribution Of Halocarbons To The Chlorine/Bromine Loading Of The Atmosphere, David Christian Dowdell

School of Geography, Earth and Environmental Sciences Theses

A capillary flow gas viscometer has been used to measure the shear viscosities of the hydrofluoroalkanes HFC 134a, HCFC 123, HCFC 124 and the ternary blend MP 39, at pressures up to 0.1 MPa relative to a nitrogen standard. Having applied small correction factors to the measured flow time data, the resultant viscosities are compared to those obtained by other workers (where possible) using alternative techniques. We calculate self diffusion coefficients and hard sphere collision diameters for the molecules within the rigorous Chapman-Enskog kinetic theory of gases, and calculate optimum well depths of the intermolecular interactions using the Extended Law …

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What Is The Nature And Process Of Effective Teaching And Learning?, Sylvia Margaret Warham Jan 1993

What Is The Nature And Process Of Effective Teaching And Learning?, Sylvia Margaret Warham

Plymouth Institute of Education Theses

Over the last ten years my thinking and writing have been concerned with the nature and process of effective teaching and learning. Although I have tried to present my thinking as a chronological sequence much of the work developed concurrently. Over the period covered by my publications my thinking has focused on three main areas: a. An exploration of the implications for language learning of the shared meaning-making process in reading, reading aloud and writing. (Approx.1978-1982) b. An exploration of the influence that a teacher may have in the shared process of meaning-making and its implications for teaching and learning. …

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An Evaluation Of Electronic Fetal Monitoring With Clinical Validation Of St Waveform Analysis During Labour, Jennifer Ann Westgate Jan 1993

An Evaluation Of Electronic Fetal Monitoring With Clinical Validation Of St Waveform Analysis During Labour, Jennifer Ann Westgate

School of Nursing and Midwifery Theses

Dissatisfaction with the electronic recording of fetal heart rate and uterine contractions (the cardiotocogram or CTG) has resulted in a search for new techniques of monitoring the fetus during labour. It is important that each method has a sound physiological and pathophysiological basis, that a model for the interpretation of changes is elucidated and that each method is thoroughly evaluated before introduction into clinical practice. Analysis of the ST waveform of the fetal electrocardiogram (FECG) is the most advanced of the new techniques under investigation. Experimental studies have shown that elevation of the ST waveform occurs with a switch to …

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Mnemodrama : Alessandro Fersen's Parashamanic Training Technique For The Occidental Performer., John C Green Jan 1993

Mnemodrama : Alessandro Fersen's Parashamanic Training Technique For The Occidental Performer., John C Green

Other Faculty of Arts, Humanities and Business Theses

This thesis is the first full-length study of the experiments in performer training undertaken by Alessandro Fersen in his studio laboratory in Rome between 1957 and 1983 and practiced since then in the codified technique which he calls Mizemodrama ( literally, "a drama of memory"). The purpose of my research is twofold: firstly, to focus on the development of the core technique of mnemodrama which is a theatrical simulation of ritual object manipulation employed by shamans in traditional cultures in order to induce an altered state of consciousness. In Fersen's terms such transic techniques provide the contemporary performer with a …

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The Behaviour Of Laterally Loaded Masonry Panels With Openings, Vun Leong Chong Jan 1993

The Behaviour Of Laterally Loaded Masonry Panels With Openings, Vun Leong Chong

School of Engineering, Computing and Mathematics Theses

In recent years the use of masonry as a structural material has increased in advance of the necessary theoretical and corroborative experimental investigations. One aspect of structural masonry where particular problems have been encountered is the design of masonry panels subjected to lateral loadings. Research undertaken, principally in the United Kingdom and Australia, has led to the development of empirical methods of analysis applicable to solid rectangular panels. However, the effects of the presence of openings on the behaviour of a masonry panel has received scant attention. The aim of the research is to rectify this situation. The principal objective …

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Investigation Into The Microstructure, Magnetic Properties And Read/Write Performance Of Thin-Film Media For Perpendicular Recording Computer Disks, Genhua Pan Jan 1993

Investigation Into The Microstructure, Magnetic Properties And Read/Write Performance Of Thin-Film Media For Perpendicular Recording Computer Disks, Genhua Pan

School of Engineering, Computing and Mathematics Theses

Pronounced effect of under layers on the squareness and slope T of the perpendicular loops of very thin CoCr films was observed. Experimental and theoretical studies suggest that, depending on the film microstructure, there are two origins on the anomalous shearing of perpendicular loops of Cc-based perpendicular films: the columnar shape anisotropy and the wall-motion-like magnetization reversal process. For films with larger intercolumnar separation, the contribution of the columnar shape anisotropy to the total demagnetizing factor is mainly responsible for the deshearing of the loops. For continuous perpendicular films, the intergranular exchange coupling controls the magnetization reversal process and the …

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A Specification For A Next Generation Cad Toolkit For Electronics Product Design, Philip Frederick Culverhouse Jan 1993

A Specification For A Next Generation Cad Toolkit For Electronics Product Design, Philip Frederick Culverhouse

School of Engineering, Computing and Mathematics Theses

Electronic engineering product design is a complex process which has enjoyed an increasing provision of computer based tools since the early 1980's. Over this period computer aided design tool development has progressed at such a pace that new features and functions have tended to be market driven. As such CAD tools have not been developed through the recommended practise of defining a functional specification prior to any software code generation. This thesis defines a new functional specification for next generation CAD tools to support the electronics product design process. It is synthesized from a review of the use of computers …

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An Investigation Into Product Design And Production Techniques Within A Just-In-Time Manufacturing Environment, Robin Julian Richmond Jan 1993

An Investigation Into Product Design And Production Techniques Within A Just-In-Time Manufacturing Environment, Robin Julian Richmond

School of Engineering, Computing and Mathematics Theses

This thesis describes the implementation of a Just-in-Time (JIT) cell on a greenfield site. It concentrates on a before and after implementation situation. Various production parameters are analysed to compare flowline performance before and after the implementation of JIT. The study is primarily concerned with the philosophies behind the Japanese management style of JIT and the practical use of JIT in a relatively small production line. Each area of JIT and its associated components are studied and, where practical, executed into practice within the production line. The study includes an investigation of the present manufacturing system and recommends improvements to …

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The Burrowing Mud Shrimp Callianassa Subterranea (Decapoda) And Bioturbation In The North Sea, Ashley Alun Rowden Jan 1993

The Burrowing Mud Shrimp Callianassa Subterranea (Decapoda) And Bioturbation In The North Sea, Ashley Alun Rowden

School of Biological and Marine Sciences Theses

A muddy-sand site in the North Sea was studied to identify the role of the benthic macrofauna in the resuspension of sediment. The macrobenthic community contained species capable of significant bioturbation. In particular, the presence and the temporal occurrence of the brittle star Amphiura filiformis was correlated with seasonal geotechnical and geophysical properties of the seabed. In addition, the extensive burrowing habit of the mud shrimp, Callianassa subterranea (Montagu), make this species potentially the most important contributor to the degree of bioturbation experienced at the site. Mud shrimps were an abundant and stable member of the study site's macrobenthic community …

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Inter-Relationships Of Myxosporeans, Including Pkx With Certain Freshwater Fish, Stephen Wolfgang Feist Jan 1993

Inter-Relationships Of Myxosporeans, Including Pkx With Certain Freshwater Fish, Stephen Wolfgang Feist

School of Biological and Marine Sciences Theses

The prevalence and impact of proliferative kidney disease (PKD) and myxosporidiosis has been investigated in wild fish stocks in the UK, over 1,500 fish representing 17 species being examined. PKD was recorded in brown trout, grayling and pike, the causative agent, the PKX cell, being identified with the aid of light and electron microscopy. A further 27 myxosporean species were also noted, with Myxobolus cotti (syn. M. jiroveci), in the brain of bullheads Cottus gobio being recorded for the first time. Studies on the structure and development of Myxidium lieberkuehni in pike revealed several previously undescribed features. Comparative morphological studies …

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Horizons: A Vocational Approach To The National Curriculum, Ka Howgill, A Harris Dec 1992

Horizons: A Vocational Approach To The National Curriculum, Ka Howgill, A Harris

Plymouth Institute of Education

No abstract provided.

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A Sociological Examination Of Juvenile Fruit Machine Gambling In A Seaside Town, Susan Elizabeth Fisher Jan 1992

A Sociological Examination Of Juvenile Fruit Machine Gambling In A Seaside Town, Susan Elizabeth Fisher

Other Faculty of Arts, Humanities and Business Theses

This thesis has two main aims. The first is to develop a standard measure of addiction to gambling in children which could be used to estimate the extent of dependency among children aged 11 to 16 years. The second focusses upon patterns of usage and seeks to understand the various meanings which children attach to fruit machine gambling in an arcade. The first aim has been achieved by adapting a measure used to diagnose addiction to gambling in adults for use with children. The resulting DSM-IV-J criteria were tested using a questionnaire survey on a sample of 467 schoolchildren aged …

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Mediterranean Lens After Collision With Seamounts, Gi Shapiro, Sl Meschanov, Mv Yemel’Yanov Jan 1992

Mediterranean Lens After Collision With Seamounts, Gi Shapiro, Sl Meschanov, Mv Yemel’Yanov

School of Biological and Marine Sciences

No abstract provided.

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Cryptocaryon Irritans Brown, 1951 (Ciliophora): Transmission And Immune Response In The Mullet Chelon Labrosus (Risso, 1826), Peter John Burgess Jan 1992

Cryptocaryon Irritans Brown, 1951 (Ciliophora): Transmission And Immune Response In The Mullet Chelon Labrosus (Risso, 1826), Peter John Burgess

School of Biological and Marine Sciences Theses

A standardised procedure was established for the laboratory maintenance of C.irritans in thick-lipped mullet. Nine isolates of C.irritans were obtained of which eight were successfully established for up to 48 weeks. Studies on individual life cycle stages with regards to longevity, viability, and susceptibility to a chemotherapeutic agent, revealed the difficulties in eradicating the cysts. Transmission of the parasite both to and from the host correlated with darkness. High infection levels resulted in the death of host fish within five days following exposure to theronts. An acquired protective immune response developed in host mullet within 14 days after exposure to …

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The Enteric Delivery Of Macromolecules And Subsequent Immune Response In The Cichlid Oreochromis Mossambicus, Paul Jenkins Jan 1992

The Enteric Delivery Of Macromolecules And Subsequent Immune Response In The Cichlid Oreochromis Mossambicus, Paul Jenkins

School of Biological and Marine Sciences Theses

Enhanced enteric delivery systems were examined in the cichlid Oreochromis mossambicus to evaluate the requirements for potential oral vaccination strategies in teleost fish. Human gamma globulin (HGG) was delivered enterically (orally or anally) to the intestine of O.mossambicus as a standard test antigen. The co-administration of the saponin Quillaja saponaria (Quil-A) was evaluated as a novel oral adjuvant, delivered with the antigen in a soluble form and also as a delivery vehicle in the form of micelles and immunestimulatory complexes (ISCOMS). HGG absorption across the intestine was monitored utilising sensitive immunocytochemical techniques which showed that the enterically delivered antigen was …

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Fludarabine Phosphate For The Treatment Of Low Grade Lymphoid Malignancy, Js Whelan, Cl Davis, S Rule, M Ranson, Et Al Jul 1991

Fludarabine Phosphate For The Treatment Of Low Grade Lymphoid Malignancy, Js Whelan, Cl Davis, S Rule, M Ranson, Et Al

Peninsula Medical School

Thirty-four patients with previously treated, advanced, low grade NHL were treated with Fludarabine, a deamination-resistant analogue of adenosine arabinoside, at a dose of 25 mg m-2 intravenously, daily for 5 days (median number of cycles = 3, range 1-10). Complete remission (CR) was achieved in six and partial remission (PR) in a further seven. Overall, responses were seen in 11/23 patients (48%) with follicular lymphoma and in 2/11 (18%) with low grade, diffuse NHL. Fifteen patients with previously treated CLL and one patient with prolymphocytic leukaemia (PLL) were also treated as above (median no. of cycles = 3, range 1-6). …

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Automated Cold Vapour Flow-Injection Analysis Of Mercury At High Concentrations., W. T. Corns, L. C. Ebdon, S. J. Hill, P. B. Stockwell Jan 1991

Automated Cold Vapour Flow-Injection Analysis Of Mercury At High Concentrations., W. T. Corns, L. C. Ebdon, S. J. Hill, P. B. Stockwell

School of Geography, Earth and Environmental Sciences

Continuous-flow cold vapour- atomic fluorescence spectrometry is shown to be an extremely sensitive technique for the determination of mercury with detection limits typically below 0.01 mug l(-1). Linear calibration ranges were found to be at least four orders of magnitude (i.e. up to 0.1 mg l(-1)). Samples with concentrations exceeding the linear range are susceptible to self-absorption, and may, in severe cases, cause carry-over problems between samples. The flow-injection approach has been utilized to extend the upper limit of the linear calibration range allowing determinations up to 10 mg l(-1) of mercury. A range of certified reference materials and zinc …

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