3 research outputs found
A reference architecture for flexibly integrating machine vision within manufacturing
A reference architecture provides an overall framework that may embrace models, methodologies and
mechanisms which can support the lifecycle of their target domain. The work described in this thesis
makes a contribution to establishing such a generally applicable reference architecture for supporting
the lifecycIe of a new generation of integrated machine vision systems.
Contemporary machine vision systems consist of a complex combination of mechanical engineering,
the hardware and software of an electronic processor, plus optical, sensory and lighting components.
"This thesis is concerned with the structure of the software which characterises the system application.
The machine vision systems which are currently used within manufacturing industry are difficult to
integrate within the information systems required within modem manufacturing enterprises. They are
inflexible in all but the execution of a range of similar operations, and their design and implementation
is often such that they are difficult to update in the face of the required change inherent within modem
manufacturing.
The proposed reference architecture provides an overall framework within which a number of supporting
models, design methodologies, and implementation mechanisms can combine to provide support
for the rapid creation and maintenance of highly structured machine vision applications. These applications
comprise modules which can be considered as building blocks of CIM systems. Their integrated
interoperation can be enabled by the emerging infrastructural tools which will be required to underpin
the next generation of flexibly integrated manufacturing systems.
The work described in this thesis concludes that the issues of machine vision applications and the
issues of integration of these applications within manufacturing systems are entirely separate. This separation
is reflected in the structure of the thesis. PART B details vision application issues while PAIIT C
deals with integration. The criteria for next generation integrated machine vision systems, derived in
PART A of the thesis, are extensive. In order to address these criteria and propose a complete architecture,
a "thin slice" is taken through the areas of vision application, and integration at the lifecycle
stages of design, implementation, runtime and maintenance.
The thesis describes the reference architecture, demonstrates its use though a proof of concept implementation
and evaluates the support offered by the architecture for easing the problems of software change
A reference architecture for flexibly integrating machine vision within manufacturing systems
A reference architecture for flexibly integrating machine vision within manufacturing system
<sup>19</sup>F NMR as a Tool for Monitoring Individual Differentially Labeled Proteins in Complex Mixtures
The ability to monitor the behavior
of individual proteins in complex
mixtures has many potential uses, ranging from analysis of protein
interactions in highly concentrated solutions, modeling biological
fluids or the intracellular environment, to optimizing biopharmaceutical
co-formulations. Differential labeling NMR approaches, which traditionally
use <sup>15</sup>N or <sup>13</sup>C isotope incorporation during
recombinant expression, are not always practical in cases when endogenous
proteins are obtained from an organism, or where the expression system
does not allow for efficient labeling, especially for larger proteins.
This study proposes differential labeling of proteins by covalent
attachment of <sup>19</sup>F groups with distinct chemical shifts,
giving each protein a unique spectral signature which can be monitored
by <sup>19</sup>F NMR without signal overlap, even in complex mixtures,
and without any interfering signals from the buffer or other unlabeled
components. Parameters, such as signal intensities, translational
diffusion coefficients, and transverse relaxation rates, which report
on the behavior of individual proteins in the mixture, can be recorded
even for proteins as large as antibodies at a wide range of concentrations