cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Mercurialis annua Linnaeus 1753
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malpighiales
Euphorbiaceae
Mercurialis
Mercurialis annua

description: Mercurialis annua Linnaeus, Species Plantarum 2: 1035. 1753.
"Habitat in Europae temperatae umbrosis." RCN: 7471.
 Lectotype (Radcliffe-Smith in Meikle, Fl. Cyprus 2: 1451. 1985): Herb. Linn. No. 1188.3 (LINN).
 Current name:  Mercurialis annua  L. (Euphorbiaceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part M), pp. 651-689 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 667, DOI: 10.5281/zenodo.291971
Leiochrides Augener 1914
Creators: name: Mikac, Barbara
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Capitellidae
Leiochrides

description: Genus Leiochrides Augener, 1914
(AL) Leiochrides australis Augener, 1914
DISTRIBUTION: NA, SA.
LITERATURE RECORDS: Gravina et al. 1996; Castelli et al. 2008. NEW RECORDS: BM79.
REMARKS: Alien species from Western Australia (Pacific Ocean), recorded for the first time in the Mediterranean Sea along the Italian coasts (Tyrrhenian, Ionian, Ligurian and Adriatic Sea) (Gravina et al. 1996; Zenetos et al. 2010).
DEPOSITED MATERIAL: BM79, 0 6.02.2011., 10 spec. (PMR-17607).
description: Published as part of Mikac, Barbara, 2015, A sea of worms: polychaete checklist of the Adriatic Sea, pp. 1-172 in Zootaxa 3943 (1) on page 21, DOI: 10.11646/zootaxa.3943.1.1, http://zenodo.org/record/244663
Mastobranchus Eisig 1887
Creators: name: Mikac, Barbara
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Capitellidae
Mastobranchus

description: Genus Mastobranchus Eisig, 1887
Mastobranchus trinchesii Eisig, 1887
DISTRIBUTION: NA, CA.
LITERATURE RECORDS: Amoureux 1976; Požar-Domac 1994; Castelli et al. 2008; Radić 2009. NEW RECORDS: BM67.
description: Published as part of Mikac, Barbara, 2015, A sea of worms: polychaete checklist of the Adriatic Sea, pp. 1-172 in Zootaxa 3943 (1) on page 21, DOI: 10.11646/zootaxa.3943.1.1, http://zenodo.org/record/244663
Nonlinear interactions of waves and currents with structures in nearshore environments
Creators: name: Wang, Baoxing
Publisher: name: University of Plymouth
Year: 2006

description: Merged with duplicate record 10026.1/860 on 22.03.2017 by CS (TIS)
description: In this thesis, nonlinear interactions of waves and currents with structures in nearshore environments are investigated. The emphasis of the research is to model the encountered multiple scales of hydrodynamics (e. g. monochromatic waves and three-dimensional currents) in a numerically efficient and accurate way on a beach and around a structure in the shallow coastal region. The radiation stress and mass flux have been analytically derived by inclusion of higher-order surface elevations. The Boussinesq-type model COULWAVE is used to assess the fully nonlinear wave transformation on a beach. The research unveils the essential roles of the Ursell parameter, Irribarren number and wave steepness described by the local wave height, wave length and bottom slope. Based on the numerical simulations, the radiation stress and the mass flux are statistically formulated. The study has shown that the importance of wave nonlinearity in wave-induced currents and mean water level. The nonlinear transformations of wave profiles produce lower radiation stress and mass flux than linear waves. Case studies suggest the nonlinear formulations produce accurate predictions for mean water levels and current profiles both inside and outside the surf zone on a beach. The new formulations also incorporated in the improved SHORECIRC model to predict current circulation in the vicinity of one or more shore-parallel coastal structures. The simulation accuracies are demonstrated by comparisons to the experimental data from the G8 Coastal Morphodynamics Programme. The model successfully reproduces a large eddy in the region sheltered by a structure. By inclusion of nonlinear integrated wave properties, the predictions of mean water levels and currents have been greatly improved. Analytical, numerical and experimental investigation of oblique wave transmission at low-crested structures is also presented. 7be two-dimensional transmission equation is constructed and validated against the laboratory data of the EU-sponsored project, DELOS. The roles of wave-breaking, nonlinearity, currents and set-up in determining the wave transmission are demonstrated. Wave nonlinearity and wave-induced currents lengthen wave-propagating distance compared to the normal waves, and lead to less transmission on the leeside of a smooth breakwater. Due to the decreased wave amplitudes and mean wave periods after transmission, the phase velocities slow down and cause the change of mean wave direction on the transmission side.
Performance of a Boussinesq model for shoaling and breaking waves : a comparison with large scale laboratory data
Creators: name: Ozanne, Francoise
Publisher: name: University of Plymouth
Year: 1998
Subjects: Civil engineering Testing Laboratories

description: In this thesis, a nonlinear model predicting hydrodynamics data for waves shoaling and breaking on a beach is reproduced and extensively tested with laboratory data. The model is based on the 1D Boussinesq equations as derived by Madsen et al. (1991) and Madsen and Sorensen (1992), with the free surface elevation and the depth-integrated velocity as variables. It allows slowly varying bathymetries and contains additional high order terms to improve the frequency dispersion for shorter wave periods, and thus also to improve the shoaling properties of the model. Wave breaking is modelled using the concept of a surface roller as formulated by Schäffer et al. (1993). It is assumed that bottom friction is negligible. A large scale laboratory experiment (Supertank), designed in particular to obtain data to test the validity of wave propagation models, provides the wave and current data. Wave evolution over a complex bathymetry is examined for 4 cases. The data include conditions for long and short waves, and regular and irregular waves. During the model evaluation, emphasis is put on the study of parameters of importance to sediment transport, including (orbital) velocity, undertow and wave shape prediction. The latter encompasses velocity and elevation skewness, kurtosis and asymmetry. It is found that, despite an overestimation of the depth-averaged horizontal velocity in some cases, the predicted velocity moments and undertow are in good agreement with the data. Using a bispectral analysis, it is shown that the nonlinear transfers of energy amongst the low order harmonics are well reproduced, but that errors are introduced in the treatment of the high order super-harmonics. As a result, the short waves tests are found to yield better results than those for long waves. A sensitivity analysis on the free parameters introduced in the simulation of wave breaking is carried out. It appears that the results are mostly sensitive to the critical xv avve fi-ont slope OB , and in particular that the elevation and velocity skewness and kurtosis predictions are very sensitive to this parameter.
Mediomastus Hartmann 1944
Creators: name: Mikac, Barbara
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Capitellidae
Mediomastus

description: Genus Mediomastus Hartmann, 1944
(AL) Mediomastus capensis Day, 1961
DISTRIBUTION: NA.
LITERATURE RECORDS: Crema et al. 1993, 2001; Keppel & Maggiore 2006; Maggiore & Keppel 2007; Castelli et al. 2008.
NEW RECORDS: BM17.
REMARKS: Alien species originally described from the Indian Ocean, along the southern African coast (Day 1961; Zenetos et al. 2010).
DEPOSITED MATERIAL: BM17, 29.09.2010., 10 spec. (PMR-17629).
Mediomastus cirripes Ben-Eliahu, 1976
DISTRIBUTION: NA.
LITERATURE RECORDS: Ambrogi et al. 1987; Požar-Domac 1994.
® Mediomastus fragilis Rasmussen, 1973
DISTRIBUTION: CA.
NEW RECORDS: BM97.
REMARKS: This is the first record from the Adriatic Sea. DEPOSITED MATERIAL: BM97, 20.08.2013., 1 spec. (PMR-17627).
description: Published as part of Mikac, Barbara, 2015, A sea of worms: polychaete checklist of the Adriatic Sea, pp. 1-172 in Zootaxa 3943 (1) on page 22, DOI: 10.11646/zootaxa.3943.1.1, http://zenodo.org/record/244663
Mercurialis perennis Linnaeus 1753
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malpighiales
Euphorbiaceae
Mercurialis
Mercurialis perennis

description: Mercurialis perennis Linnaeus, Species Plantarum 2: 1035. 1753.
"Habitat in Europae nemoribus." RCN: 7469.
 Lectotype (Radcliffe-Smith in Jarvis & al., Regnum Veg. 127: 66. 1993): Herb. Clifford: 461, Mercurialis 1 (BM-000647504).
 Generitype of Mercurialis Linnaeus (vide Green, Prop. Brit. Bot.: 192. 1929).
 Current name:  Mercurialis perennis  L. (Euphorbiaceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part M), pp. 651-689 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 667, DOI: 10.5281/zenodo.291971
Learning and planning for autonomous systems with emergent hierarchical representations and decaying short-term memory
Creators: name: Bogdan, Piotr Aleksander
Publisher: name: University of Plymouth
Year: 2023
Subjects: subject: Unsupervised learning
subject: Sequence encoding
subject: Self-organizing maps
subject: Multilayer hierarchical network
subject: PhD

description: How do we create machines with the ability to capture, record and recall memories of past experience? How should these machines choose the most optimal action based on those stored memories? These seem like crucial questions for creating intelligent machines capable of learning from experience. The field of Artificial Intelligence (AI) is trying to reproduce such capabilities with increasing success. Currently a large portion of AI algorithms are focusing on making decisions based on big sets of learned past experience examples in the form of instantaneous input-output mapping. They operate as discrete models where time is collapsed into independent signal samples. Yet the dimension of time is the most fundamental source of perception, and the presence and absence of the signal is only visible by its changes in time. This work combines features of established neural network algorithms to create a new approach to the processing of temporal signals. Considering either agent-environment division present in reinforcement learning (RL) or controller-process division in control theory, there is always the intelligent part, agent or controller, which tries to control the passive, mostly deterministic part, environment or process. As the complexity of the problem grows, the coupling between the controller and the controlled part starts to become more physically limited. With limited perception, the controller has to resolve to building an abstract model of the controlled process or environment in order to be able to take fully informed actions. Presented in this thesis is a new artificial neural network capable of creating an unsupervised temporal model of the signal that can then be used as an abstract environment model for the controller. The network is structured as multilayer hierarchical composition of self-organising maps, augmented by short term memory in the form of wave-delay lines. Each layer performs temporal signal decomposition with a progressively larger time spectrum. The research analyses the network performance in creating abstract signal models on a range of synthetic and real world signals. It then introduces simple reinforcement learning additions, that allow the network to solve simple toy RL benchmarks.
An Investigation of the Contingent Negative Variation Using Signal Processing Methods
Creators: name: Nichols, Martin John
Publisher: name: University of Plymouth
Year: 1982

description: The Contingent Negative Variation (CNV) is one of many types of electrical response signals which appear in the electroencephalogram (EEG) of man subsequent to one or more stimuli. Generally these responses are small in comparison to the normal background EEG and had always been thought to consist of a response component which was added to the background EEG. Professor B. McA. Sayers of Imperial College suggested that the auditory response might actually be due to a temporary ordering of the phases of the components of the background EEG. A model, allowing for additive and ordering effects, is proposed here. This model was tested on both auditory and CNV responses using statistical tests not previously used in evoked potential studies. The tests showed that while the additive model satisfactorily described the auditory responses, it did not explain the CNV responses so well. However, both sets of responses showed a certain amount of phase ordering and this was consistent with the model which showed that a repetitive additional component would always incorporate the phase ordering effect. In the absence of detectable additivity pure phase re-ordering might alternatively occur as proposed by Sayers. The CNV's of a patient group were also studied and certain tests are proposed as a possible method of diagnosis. The reliability of these tests was not conclusively proved as much larger control and patient groups would be required to do this. An important part of this work involved the introduction of a quantitative method for assessing the effectiveness of methods of removing eye movement artefact from the EEG. This allowed the development of a more extensive correction method which was tested against two other techniques and found to be superior. This correction method will provide the basis for further research and the development of a corrector to be made commercially.
Leidesia procumbens Prain 1913
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malpighiales
Euphorbiaceae
Leidesia
Leidesia procumbens

description: Mercurialis procumbens Linnaeus, Species Plantarum 2: 1036. 1753.
"Habitat in Africa." RCN: 7282.
 Neotype (Radcliffe-Smith in Kew Bull. 44: 451. 1989): Herb. Linn. No. 1188.5 (LINN).
 Current name:  Leidesia procumbens  (L.) Prain (Euphorbiaceae).
 Note: In the apparent absence of any original material, Radcliffe-Smith’s indication of 1188.5 (LINN) as the holotype is taken as correctable to neotype (Art. 9.8).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part M), pp. 651-689 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 667, DOI: 10.5281/zenodo.291971
Peresiella Harmelin 1968
Creators: name: Mikac, Barbara
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Capitellidae
Peresiella

description: Genus Peresiella Harmelin, 1968
® Peresiella clymenoides Harmelin, 1968
DISTRIBUTION: NA, CA, SA.
NEW RECORDS: BM17, BM96, BM98, BM101.
REMARKS: These are the first records from the Adriatic Sea. DEPOSITED MATERIAL: BM17, 29.09.2010., 2 spec. (PMR-17619).
description: Published as part of Mikac, Barbara, 2015, A sea of worms: polychaete checklist of the Adriatic Sea, pp. 1-172 in Zootaxa 3943 (1) on page 23, DOI: 10.11646/zootaxa.3943.1.1, http://zenodo.org/record/244663
INVESTIGATION INTO SUBMICRON TRACK POSITIONING AND FOLLOWING TECHNOLOGY FOR COMPUTER MAGNETIC DISKS
Creators: name: TAN, BAOLIN
Publisher: name: University of Plymouth
Year: 1998

description: In the recent past some magnetic heads with submicron trackwidth have been developed in order to increase track density of computer magnetic disks, however a servo control system for a submicron trackwidth head has not been investigated. The main objectives of this work are to investigate and develop a new servo pattern recording model, a new position sensor, actuator, servo controller used for submicron track positioning and following on a computer hard disk with ultrahigh track density, to increase its capacity. In this position sensor study, new modes of reading and writing servo information for longitudinal and perpendicular magnetic recording have been developed. The read/write processes in the model have been studied including the recording trackwidth, the bit length, the length and shape of the transition, the relationship between the length of the MR head and the recording wavelength, and the SIN of readout. lt has also been investigated that the servo patterns are magnetized along the radial direction by a transverse writing head that is aligned at right angles with the normal data head and the servo signals are reproduced by a transverse MR head with its stripe and pole gap tangential to the circumferential direction. lt has been studied how the servo signal amplitude and linearity are affected by the length of the MR sensor and the distance between the shields of the head. Such things as the spacing and length of the servo-pattern elements have been optimised so as to achieve minimum jitter and maximum utilisation of the surface of the disk. The factors (i.e. the skew angle of the head) affecting the SIN of the position sensor have been analysed and demonstrated. As a further development, a buried servo method has been studied which uses a servo layer underneath the data layer, so that a continuous servo signal is obtained. A new piezo-electric bimorph actuator has been demonstrated. This can be used as a fine actuator in hard disk recording. The linearity and delay of its response are improved by designing a circuit and selecting a dimension of the bimorph element. A dual-stage actuator has been developed. A novel integrated fine actuator using a piezo-electric bimorph has also been designed. A new type of construction for a magnetic head and actuator has been studied. A servo controller for a dual-stage actuator has been developed. The wholly digital controller for positioning and following has been designed and its performances have been simulated by the MAL TAB computer program. A submicron servo track writer and a laser system measuring dynamic micro-movement of a magnetic head have been specially developed for this project. Finally, track positioning and following on 0.7 µm tracks with a 7% trackwidth rms runout has been demonstrated using the new servo method when the disk-was rotating at low speed. This is one of the best results in this field in the world.
MAINTENANCE REQUIREMENTS FOR LIGHTLY TRAFFICKED ROADS
Creators: name: BUTLER, IAN C.
Publisher: name: University of Plymouth
Year: 1982

description: A flexible pavement evaluation and overlay design procedure has been developed by the Transport and Road Research Laboratory (TRRL) . The majority of the information used to derive the relationships contained in this procedure was collected on medium and heavily trafficked roads. Very little performance data existed prior to the start of this project for lightly trafficked roads, with the result that the relationships in the above procedure had to be extrapolated at the lower traffic levels. This investigation has resulted in the setting up of a large data base containing pavement condition, construction and strength information. A new methodology has been developed for investigating the performance of flexible pavements based upon data gathered over a limited time scale. This methodology has been used to relate deflection to pavement condition and the subsequent relationships used to validate those published by TRRL. The work has added confidence to the use of the evaluation and overlay design procedure for roads that have carried low volumes of traffic. An investigation has also been undertaken into the use of deflected shape measurements, made with a Deflectograph, to characterise pavement construction. Theoretical studies have been made using a finite element approach, together with practical studies based upon deflected shape measurements recorded on a number of lightly trafficked roads. Resulting from these investigations, a method has been developed for estimating the thickness of bituminous material in a flexible pavement from measurements of deflected shape recorded with a Deflectograph. Such an estimation procedure would in the long term remove a major obstacle to on-board real-time processing of deflection measurements recorded with a Deflectograph. In the short term it would help eliminate a great deal of uncertainty that exists at present concerning the pavement construction between locations where cores have been removed.
CROSSTALK-RESILIANT CODING FOR HIGH DENSITY DIGITAL RECORDING
Creators: name: AHMED, MOHAMMED ZAKI
Publisher: name: University of Plymouth
Year: 2003

description: Increasing the track density in magnetic systems is very difficult due to inter-track interference (ITI) caused by the magnetic field of adjacent tracks. This work presents a two-track partial response class 4 magnetic channel with linear and symmetrical ITI; and explores modulation codes, signal processing methods and error correction codes in order to mitigate the effects of ITI. Recording codes were investigated, and a new class of two-dimensional run-length limited recording codes is described. The new class of codes controls the type of ITI and has been found to be about 10% more resilient to ITI compared to conventional run-length limited codes. A new adaptive trellis has also been described that adaptively solves for the effect of ITI. This has been found to give gains up to 5dB in signal to noise ratio (SNR) at 40% ITI. It was also found that the new class of codes were about 10% more resilient to ITI compared to conventional recording codes when decoded with the new trellis. Error correction coding methods were applied, and the use of Low Density Parity Check (LDPC) codes was investigated. It was found that at high SNR, conventional codes could perform as well as the new modulation codes in a combined modulation and error correction coding scheme. Results suggest that high rate LDPC codes can mitigate the effect of ITI, however the decoders have convergence problems beyond 30% ITI.
Evolutionary Decomposition of Complex Design Spaces
Creators: name: BONHAM, CHRISTOPHER RICHARD
Publisher: name: University of Plymouth
Year: 2000

description: This dissertation investigates the support of conceptual engineering design through the decomposition of multi-dimensional search spaces into regions of high performance. Such decomposition helps the designer identify optimal design directions by the elimination of infeasible or undesirable regions within the search space. Moreover, high levels of interaction between the designer and the model increases overall domain knowledge and significantly reduces uncertainty relating to the design task at hand. The aim of the research is to develop the archetypal Cluster Oriented Genetic Algorithm (COGA) which achieves search space decomposition by using variable mutation (vmCOGA) to promote diverse search and an Adaptive Filter (AF) to extract solutions of high performance [Parmee 1996a, 1996b]. Since COGAs are primarily used to decompose design domains of unknown nature within a real-time environment, the elimination of apriori knowledge, speed and robustness are paramount. Furthermore COGA should promote the in-depth exploration of the entire search space, sampling all optima and the surrounding areas. Finally any proposed system should allow for trouble free integration within a Graphical User Interface environment. The replacement of the variable mutation strategy with a number of algorithms which increase search space sampling are investigated. Utility is then increased by incorporating a control mechanism that maintains optimal performance by adapting each algorithm throughout search by means of a feedback measure based upon population convergence. Robustness is greatly improved by modifying the Adaptive Filter through the introduction of a process that ensures more accurate modelling of the evolving population. The performance of each prospective algorithm is assessed upon a suite of two-dimensional test functions using a set of novel performance metrics. A six dimensional test function is also developed where the areas of high performance are explicitly known, thus allowing for evaluation under conditions of increased dimensionality. Further complexity is introduced by two real world models described by both continuous and discrete parameters. These relate to the design of conceptual airframes and cooling hole geometries within a gas turbine. Results are promising and indicate significant improvement over the vmCOGA in terms of all desired criteria. This further supports the utilisation of COGA as a decision support tool during the conceptual phase of design.
AN INVESTIGATION INTO THE DEVELOPMENT OF ENGINEERING STUDENTS' CONCEPTUAL UNDERSTANDING OF MATHEMATICS
Creators: name: Maull, Wendy Mary
Publisher: name: University of Plymouth
Year: 1998

description: Following widespread concern over an apparent decline in the mathematical skills of engineering students, this study employed survey and observation methods to investigate the ways in which engineering students understand mathematical concepts, and to compare these with the concepts held-by students of mathematics. It was found that the engineering students employ a different vocabulary from mathematics students in discussing mathematics, and that their understanding of mathematical concepts develops differently from mathematics students both in response to teaching (which appears to be a transitory effect) and as their experience gives meaning to the ideas in life outside study. These findings are important in two ways. We need to make the mathematics teachers of engineering students aware of the language and concepts of their students so that the possibility of mutual misunderstanding is reduced, and we as educators need to help engineering students to make these connections in order to ground their mathematics in reality and to use mathematics an Instrument for understanding the world. Compared with the classical mathematical modelling paradigm and the classical empirical modelling paradigm, the method used by engineering students was found to be a hybrid based on the Identification of the type of problem and the application of a "preexisting law. Some misconceptions concerning the behaviour of beams In bending were found to be widely held, by respondents with a range of levels of experience. Whereas the particular misconceptions are not Important in themselves. It Is salutary to realise that expertise in one area of study does not necessarily Inoculate one against misconceptions In a closely related area. A software package was written using the context of mathematical modelling to help students relate concepts In calculus to physical situations. This package was found not to engage the students sufficiently to provoke cognitive change, and suggests that a higher degree of Interactivity Is needed.
Mercurialis tomentosa Linnaeus 1753
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malpighiales
Euphorbiaceae
Mercurialis
Mercurialis tomentosa

description: Mercurialis tomentosa Linnaeus, Species Plantarum 2: 1035. 1753.
"Habitat in G. Narbonensi, Hispania." RCN: 7472.
Type not designated.
 Original material: Herb. Clifford: 461, Mercurialis 3, 2 sheets (BM); [icon] in Clusius, Rar. Pl. Hist. 2: 48. 1601.
 Current name:  Mercurialis tomentosa  L. (Euphorbiaceae).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part M), pp. 651-689 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 667, DOI: 10.5281/zenodo.291971
Dynamics and Divergences in Electromagnetic Backgrounds
Creators: name: Jameson, Paul
Publisher: name: University of Plymouth
Year: 2007

description: This thesis investigates the behaviour of a charge which is subjected to either an electromagnetic background created by a laser or a background which is hidden behind the resolution limitations of accelerator experiments. When a charge interacts with an intense laser beam its dynamics changes. The resulting trajectory of a non-relativistic particle is solved in this thesis without having to employ the dipole approximation. Many fundamental features of this trajectory are analysed including the drift velocity and the appearance of higher harmonic oscillations. In contrast, the interaction between a charge and an unobserved electromagnetic background leads to the infrared catastrophe. This has plagued field theories since the early nineteenth century. The standard theoretical response to such soft and collinear infrared divergences which are present in quantum field theories is the Lee-Nauenberg theorem. In this thesis a new class of collinear divergences associated with particles which are both soft and collinear will be discussed within the Coulomb scattering process. We show that all infrared singularities may be cancelled by the Lee- Nauenberg theorem but only if severe restrictions are placed on the normalisation of states and experimental set-up.
DEVELOPMENT OF A COMPUTING AND INFORMATION SYSTEMS INFRASTRUCTURE FOR CAPM IN A COMPUTER INTEGRATED MANUFACTURING ENVIRONMENT
Creators: name: WESTON, NEIL
Publisher: name: University of Plymouth
Year: 1991

description: The continuing failure of many CAPM implementations in the UK, despite the availability of a large and growing supply of software, gave rise to concern within the academic and user community and highlighted a need for a concerted research effort into the causes of failure. The Science and Engineering Research Council responded to this need by sponsoring a major research initiative into CAPM through its ACME (Application of Computers to Manufacturing Engineering) Directorate. The findings reported in this thesis result from the work carried out for ACME by the author as part of the joint Polytechnic South West/Sheffield Business School research programme under the direction of professors D R Hughes, I S Smith and D R Tranfield. The extent of the work included surveying a large number of manufacturing firms, interviewing suppliers of CAPM systems and services and analysing the data collected from these activities. This resulted in the identification of a number of causes of CAPM failure. A major component of the work then concerned developing an appropriate CAPM design and implementation methodology to address the issues and concerns identified as significant. A clear distinction is made in the thesis between the work carried out by the author as part of the ACME team and the author's own work. The results from the joint effort of the research team are explained together with the author's unique contribution. The concepts of operational performance envelopes and contextually bound computing and information systems infrastructures provide the theoretical foundation to the author's approach. These concepts are utilised within an approach developed by the author which offers a wider ranging approach than is currently available. Existing approaches focus on the development of single point solutions and aim to address particular and current problems only. Such solutions are inappropriate where requirements are subject to rapid and frequent change, as in the manufacturing sector. In contrast the author's approach focuses on the development of a computing and information systems capability with the necessary flexibility to accommodate changing requirements and priorities. In this way a more resilient solution is obtainable.
Neopseudocapitella Rullier & Amoureux 1979
Creators: name: Mikac, Barbara
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Capitellidae
Neopseudocapitella

description: Genus Neopseudocapitella Rullier & Amoureux 1979
(AL) Neopseudocapitella brasiliensis Rullier & Amoureux 1979
DISTRIBUTION: NA.
LITERATURE RECORDS: Amoureux 1983d; Zavodnik et al. 1985; Požar-Domac 1994; Castelli et al. 2008. REMARKS: Alien species recorded for the first time in the Mediterranean in the NA (Amoureux 1983d; Occhipinti- Ambrogi et al. 2011). The type locality is the Atlantic coast of South America (Rullier & Amoureux 1979).
description: Published as part of Mikac, Barbara, 2015, A sea of worms: polychaete checklist of the Adriatic Sea, pp. 1-172 in Zootaxa 3943 (1) on page 22, DOI: 10.11646/zootaxa.3943.1.1, http://zenodo.org/record/244663
Acrodon bellidiflorus N. E. Br.
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Aizoaceae
Acrodon
Acrodon bellidiflorus

description: Mesembryanthemum acaule Linnaeus, Systema Naturae, ed. 10, 2: 1059. 1759, nom. illeg.
["Habitat in Africa."] Sp. Pl. 1: 482 (1753). RCN: 3678.
 Replaced synonym: Mesembryanthemum bellidiflorum L. (1753).
 Lectotype (Glen in Bothalia 16: 214. 1986): [icon] " Mesembryanthemum Bellidiflorum " in Dillenius, Hort. Eltham. 2: 244, t. 189, f. 233. 1732.
 Current name:  Acrodon bellidiflorus  (L.) N.E. Br. (Aizoaceae).
 Note: A superfluous name for M. bellidiflorum L. (1753).
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part M), pp. 651-689 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 667, DOI: 10.5281/zenodo.291971
A MODEL BASED APPROACH TO THE DESIGN AND IMPLEMENTATION OF COMPUTER AIDED PRODUCTION MANAGEMENT SYSTEMS
Creators: name: WEAVER, ADAM MATTHEW
Publisher: name: University of Plymouth
Year: 1995

description: This work investigated the use of generic models in the early stages of the design and implementation of computer aided production management (CAPM) systems. A set of issues that affect the success of such CAPM systems was identified, using information obtained from literature and observations made by the author during an in-depth case study of the design and implementation of a CAPM system. The set of issues included the failure of many manufacturing companies to take a systemic perspective of CAPM and the importance of developing a thorough understanding of existing systems and how these systems are currently integrated. Requirements were proposed for an improved approach to the design and implementation of CAPM systems. Taking the requirements into consideration the concepts underlying the use of and types of models were explored. In particular, the use of generic models and how generic models could help manufacturing companies were considered. The work also investigated the use of soft systems thinking and the concept of a business process to encourage a systemic perspective to be taken. A genetic process model was proposed as a means of meeting the requirements of an improved approach. A generic model of an "order fulfilment" process in a manufacturing company was developed and a way of using it which embodies soft systems principles was proposed. The model and its use was validated using five key needs of practitioners. The validation involved a review of the model by practitioners and the use of the model in a local company as part of a project to design and implement a CAPM system. The originality of this work lies in the development by the author of a generic model which can be used as part of an improved model based approach to the design and implementation of CAPM systems. This should provide clear advantages over existing approaches.
Notomastus M. Sars 1851
Creators: name: Mikac, Barbara
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Capitellidae
Notomastus

description: Genus Notomastus M. Sars, 1851
(AL) Notomastus aberans Day, 1957
DISTRIBUTION: NA, CA.
LITERATURE RECORDS: Crema et al. 1993, 2001; Castelli et al. 2008. NEW RECORDS: BM97, BM98, BM99.
REMARKS: Alien species originating from the Indian Ocean (south African coast) and Red Sea (Day 1967; Zenetos et al. 2010). Recorded for the first time in the western Mediterranean (Marseille) and eastern Mediterranean (Crete Island) by Harmelin (1968).
DEPOSITED MATERIAL: BM99, 16.07.2012., 3 spec. (PMR-17645).
Notomastus latericeus M. Sars, 1851
DISTRIBUTION: NA, CA, SA.
LITERATURE RECORDS: Grube 1864; Stossich 1883; Carus 1884; Graeffe 1905; Vatova 1931a; Fauvel 1934; Vatova 1934, 1935, 1940a, 1942, 1943, 1949a; Scaccini 1967; Gamulin-Brida et al. 1968; Bellan 1969; Fauvel 1940; Banse 1970; Zavodnik 1971; Katzmann 1972; Marcuzzi 1972; Katzmann 1973a, 1973f; Avčin et al. 1974; Giordani-Soika & Perin 1974; Matjašić & Štirn 1975; Amoureux 1976; Bellan 1976; Cognetti-Varriale & Zunarelli-Vandini 1978; Amoureux 1979; Zavodnik 1979; Amoureux 1983a, 1983c; Avčin & Vrišer 1983; Fassari 1983; Katzmann 1983; Požar-Domac 1983; Del Piero et al. 1984; Stjepčević et al. 1984; Zavodnik et al. 1985; Gillet 1986; Požar-Domac 1986; Zavodnik & Vidaković 1987; Aleffi et al. 1988; Špan et al. 1989; Županović & Jardas 1989; Giangrande & Fraschetti 1993; Giangrande & Rubino 1994; Požar-Domac 1994; Zahtila 1995; Giangrande & Fraschetti 1996; Giangrande & Montanaro 1997; Zahtila 1997; Zavodnik & Kovačić 2000; Giangrande et al. 2001; Piscitelli et al. 2001; Cantone & Di Pietro 2002; Maggiore 2002; Aleffi et al. 2003; Simonini et al. 2005b; Boscolo et al. 2006; Keppel & Maggiore 2006; Zavodnik et al. 2006; Maggiore & Keppel 2007; Prevedelli et al. 2007; Simonini et al. 2007; Solis-Weiss et al. 2007; Castelli et al. 2008; Schirosi et al. 2010; Mikac et al. 2011; Musco et al. 2011.
NEW RECORDS: BM11, BM12, BM13, BM14, BM15, BM16, BM17, BM18, BM19, BM20, BM21, BM22, BM25, BM26, BM27, BM28, BM30, BM33, BM34, BM37, BM38, BM39, BM40, BM41, BM42, BM43, BM44, BM45, BM46, BM47, BM48, BM49, BM50, BM51, BM52, BM53, BM54, BM65, BM66, BM69, BM68, BM71, BM73, BM91, BM92, BM96, BM99.
Notomastus lineatus Claparède, 1870
DISTRIBUTION: NA.
LITERATURE RECORDS: Aleffi et al. 2003; Castelli et al. 2008.
Notomastus profundus Eisig, 1887
DISTRIBUTION: NA, CA, SA.
LITERATURE RECORDS: Fauvel 1934; Vatova 1934, 1935, 1943; Kiseleva 1964; Katzmann 1972; Marcuzzi 1972; Katzmann 1973a, 1973f; Amoureux 1976; Avčin & Vrišer 1983; Katzmann 1983; Požar-Domac 1983, 1986, 1994; Zahtila 1995; Castelli et al. 2008.
description: Published as part of Mikac, Barbara, 2015, A sea of worms: polychaete checklist of the Adriatic Sea, pp. 1-172 in Zootaxa 3943 (1) on pages 22-23, DOI: 10.11646/zootaxa.3943.1.1, http://zenodo.org/record/244663
An Adaptive Partial Response Data Channel for Hard Disk Magnetic Recording
Creators: name: DARRAGH, NEIL
Publisher: name: University of Plymouth
Year: 1994

description: An adaptive data channel is proposed which is better able to deal with the variations in performance typically found in the recording components of a hard disk drive. Three such categories of variation were investigated in order to gain an understanding of their relative and absolute significance; variations over radius, along the track length, and between different head / media pairs. The variations were characterised in terms of their effects on the step-response pulse width and signal-to-noise ratio. It was found that in each of the categories investigated, significant variations could be found in both longitudinal and perpendicular recording systems which, with the exception of radial variations, were nondeterministic over different head / media pairs but were deterministic for any particular head / media pair characterised. Conventional data channel design assumes such variations are non-deterministic and is therefore designed to provide the minimum error rate performance for the worst case expected recording performance within the range of accepted manufacturing tolerance. The proposed adaptive channel works on the principle that once a particular set of recording components are assembled into the disk drive, such variations become deterministic if they are able to be characterised. Such ability is facilitated by the recent introduction of partial response signalling to hard disk magnetic recording which brings with it the discrete-time sampler and the ability of the microprocessor to analyse signals digitally much more easily than analogue domain alternatives. Simple methods of measuring the step-response pulse width and signal to noise ratio with the partial response channel's electronic components are presented. The expected error rate as a function of recording density and signal to noise ratio is derived experimentally for the PR4 and EPR4 classes of partial response. On the basis of this information and the recording performance it has measured, the adaptive channel is able to implement either PR4 or EPR4 signalling and at any data rate. The capacity advantage over the non-adaptive approach is investigated for the variables previously identified. It is concluded on the basis of this investigation that the proposed adaptive channel could provide significant manufacturing yield and capacity advantages over the non-adaptive approach for a modest increase in electronic complexity.
Pseudocapitella Fauvel 1913
Creators: name: Mikac, Barbara
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Capitellidae
Pseudocapitella

description: Genus Pseudocapitella Fauvel, 1913
Pseudocapitella incerta Fauvel, 1913
DISTRIBUTION: CA.
LITERATURE RECORDS: Radić 2009.
REMARKS: In the CA the species was recorded along Veliki Drvenik Island (Radić 2009).
description: Published as part of Mikac, Barbara, 2015, A sea of worms: polychaete checklist of the Adriatic Sea, pp. 1-172 in Zootaxa 3943 (1) on page 23, DOI: 10.11646/zootaxa.3943.1.1, http://zenodo.org/record/244663
IMBEDDED INTEGRATION RULES AND THEIR APPLICATIONS IN BAYESIAN ANALYSIS
Creators: name: DELLAPORTAS, PETROS
Publisher: name: University of Plymouth
Year: 1990

description: This thesis deals with the development and application of numerical integration techniques for use in Bayesian Statistics. In particular, it describes how imbedded sequences of positive interpolatory integration rules (PIIR's) obtained from Gauss-Hermite product rules can extend the applicability and efficiency of currently available numerical methods. The numerical strategy suggested by Naylor and Smith (1982) is reviewed, criticised and applied to some examples with real and artificial data. The performance of this strategy is assessed from the viewpoint of 3 criteria: reliability, efficiency and accuracy. The imbedded sequences of PIIR’s are introduced as an alternative and an extension to the above strategy for two major reasons. Firstly, they provide a rich class of spatially ditributed rules which are particularly useful in high dimensions. Secondly, they provide a way of producing more efficient integration strategies by enabling approximations to be updated sequentially through the addition of new nodes at each step rather than through changing to a completely new set of nodes. Finally, the Improvement in the reliability and efficiency achieved by the adaption of an integration strategy based on PIIR's is demonstrated with various illustrative examples. Moreover, it is directly compared with the Gibbs sampling approach introduced recently by Gelfand and Smith (1988).
Guidance and control of an autonomous underwater vehicle
Creators: name: Naeem, Wasif
Publisher: name: University of Plymouth
Year: 2004

description: Merged with duplicate record 10026.1/856 on 07.03.2017 by CS (TIS)
description: A cooperative project between the Universities of Plymouth and Cranfield was aimed at designing and developing an autonomous underwater vehicle named Hammerhead. The work presented herein is to formulate an advance guidance and control system and to implement it in the Hammerhead. This involves the description of Hammerhead hardware from a control system perspective. In addition to the control system, an intelligent navigation scheme and a state of the art vision system is also developed. However, the development of these submodules is out of the scope of this thesis. To model an underwater vehicle, the traditional way is to acquire painstaking mathematical models based on laws of physics and then simplify and linearise the models to some operating point. One of the principal novelties of this research is the use of system identification techniques on actual vehicle data obtained from full scale in water experiments. Two new guidance mechanisms have also been formulated for cruising type vehicles. The first is a modification of the proportional navigation guidance for missiles whilst the other is a hybrid law which is a combination of several guidance strategies employed during different phases of the Right. In addition to the modelling process and guidance systems, a number of robust control methodologies have been conceived for Hammerhead. A discrete time linear quadratic Gaussian with loop transfer recovery based autopilot is formulated and integrated with the conventional and more advance guidance laws proposed. A model predictive controller (MPC) has also been devised which is constructed using artificial intelligence techniques such as genetic algorithms (GA) and fuzzy logic. A GA is employed as an online optimization routine whilst fuzzy logic has been exploited as an objective function in an MPC framework. The GA-MPC autopilot has been implemented in Hammerhead in real time and results demonstrate excellent robustness despite the presence of disturbances and ever present modelling uncertainty. To the author's knowledge, this is the first successful application of a GA in real time optimization for controller tuning in the marine sector and thus the thesis makes an extremely novel and useful contribution to control system design in general. The controllers are also integrated with the proposed guidance laws and is also considered to be an invaluable contribution to knowledge. Moreover, the autopilots are used in conjunction with a vision based altitude information sensor and simulation results demonstrate the efficacy of the controllers to cope with uncertain altitude demands.
Carpobrotus acinaciformis L. Bolus
Creators: name: Jarvis, Charlie
Publisher: name: Linnaean Society of London in association with the Natural History Museum
Year: 2007
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Aizoaceae
Carpobrotus
Carpobrotus acinaciformis

description: Mesembryanthemum acinaciforme Linnaeus, Species Plantarum 1: 485. 1753.
"Habitat ad Cap. b. Spei." RCN: 3696.
 Lectotype (Preston & Sell in Watsonia 17: 238. 1989): [icon] " Mesembryanthemum acinaciforme, flore amplissimo purpureo " in Dillenius, Hort. Eltham. 2: 282, t. 211, f. 270. 1732 (OXF).
 Current name:  Carpobrotus acinaciformis  (L.) L. Bolus (Aizoaceae).
 Note: Preston & Sell indicate Dillenius’ own, coloured copy of his book at OXF as the lectotype. Jonkers (in Brit. Cact. Succ. J. 19: 182, f. 7. 2001) reproduces the type illustration.
description: Published as part of Jarvis, Charlie, 2007, Chapter 7: Linnaean Plant Names and their Types (part M), pp. 651-689 in Order out of Chaos. Linnaean Plant Types and their Types, London :Linnaean Society of London in association with the Natural History Museum on page 667, DOI: 10.5281/zenodo.291971