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The relative phase distortion detection techniqueGoodhall, Anthony John January 1994 (has links)
No description available.
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Inspection of periodic structures using coherent opticsSearch, David John January 1997 (has links)
No description available.
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Fourier analysis of projected fringe patterns for precision measurementMalcolm, Andrew Alexander January 1995 (has links)
No description available.
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Image processing : techniques for locating defects on shirt collarsAl-Eidarous, Mustafa H. January 1998 (has links)
No description available.
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An audit system for regulatory authorities and professional bodies to assess the operational competence of occupational hygiene approved inspection authoritiesBosch, Conrad 30 April 2009 (has links)
ABSTRACT
In South Africa the assessment of exposure to occupational hygiene stressors or
environmental factors in workplaces covered by the Occupational Health & Safety
Act, Act No. 85 of 1993 must be performed or at least verified by an Approved
Inspection Authority for occupational hygiene. However, no formal system is in
place to effectively audit and score operational work of Approved Inspection
Authorities for occupational hygiene.
Formal auditing is a requirement of internationally accepted and implemented
management systems such as the International Standards Organisation (ISO) 9001:
2000, Quality Management System – Requirements, the British Standards Institution
- Occupational Health and Safety Series (OHSAS) 18001: 1999, as well as the
International Standard - ISO 14000: 2004: Environmental Management System.
To develop an audit system for Approved Inspection Authorities for occupational
hygiene, a descriptive research project that gathered relevant data through
electronic questionnaires was conducted with the objective of identifying audit
elements and a general scoring system as well as the development of an audit tool
that can be applied by regulatory authorities, professional bodies and even
competent persons to audit operational work of Approved Inspection Authorities for
occupational hygiene.
5
This study had a sample population of 40 Approved Inspection Authorities for
occupational hygiene, all based in the Gauteng Province, the province which had the
largest number of Approved Inspection Authorities for occupational hygiene. A
questionnaire was compiled from local and international audit elements and emailed
to the study population for electronic completion. The cover letter and study
questionnaire is appended as ANNEXURE A and ANNEXURE B respectively. The
Ethics Committee – Clearance Certificate is appended as ANNEXURE C.
The questionnaire listed the proposed audit elements and a number of questions
relating to the registration of the Approved Inspection Authority for occupational
hygiene. A scoring mechanism was also suggested. Questions asked in the
questionnaire applied the equivalent-form approach whereby as far as reasonably
practicable each question was rephrased so that it “appeared different”, but
effectively asked the same question.
The study had a response rate of 65%, or a total of twenty six returned
questionnaires. The respondents were in agreement that the elements; Organisation
& Administration, Human Resources, Accommodation & Environment, Equipment,
Measurement & Testing as well as Occupational Hygiene Services & Documentation
were applicable to an audit for Approved Inspection Authorities for occupational
hygiene. Twenty two or 84.6% of the respondents strongly agreed that the said
elements were adequate for an occupational hygiene audit. Four or 15.4% of the
respondents disagreed, responding that the proposed elements were not adequate
for an audit of Approved Inspection Authorities for occupational hygiene.
6
Four of the 26 respondents indicated that the elements; Suppliers & Accommodation
should be excluded from the proposed occupational hygiene audit. Twenty two or
84.6% of the respondents strongly agreed that audits are effective in the
identification of poor quality work and the subsequent need for corrective measures.
Forty two percent of the respondents agreed to the use of the four point scale
applied by most of the CONCAWE member companies (Brussels), which was
suggested for the proposed audit of the Approved Inspection Authorities for
occupational hygiene. Two of the respondents preferred the use of the terms
“comply” and “not comply” instead of a numerical rating or scoring mechanism. Two
respondents stated that they preferred the use of a five point scale (numbers 1 – 5)
as a scoring mechanism.
Six of the respondents stated that they would use a different scoring mechanism but
did not explain, or elaborate on their statement. Five respondents did not complete
the section on the suggested scoring mechanism.
On the subject of adequate scores the study found that 18 of the respondents
suggested a score of not less than 80% (out of a possible 100%). The majority of
respondents indicated that a score of less than 60% warranted corrective action
from the Department of Labour or the Southern African Institute for Occupational
Hygiene. The majority of respondents preferred the legal appointment of the Department of
Labour as the body permitted and approved to audit the operational activities of
Approved Inspection Authorities for occupational hygiene.
From the results of the study the researcher concluded that a need exists for a
formal auditing and scoring system for operational work of Approved Inspection
Authorities for occupational hygiene.
A proposed audit tool was designed and is appended.
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Integrated Inspection for Precision Part ProductionChen, Austin Hua-Ren 06 April 2006 (has links)
This research develops a methodology for enhancing the performance of a precision computer numerically controlled (CNC) machine tool. The ability to precisely maintain the desired relative position between the cutting tool and the workpiece along the cutting trajectory has a major impact on the dimensional accuracy of the finished part. It is important to ensure that the workpiece geometry satisfies tolerances before removing it from the machine tool. Traditional manufacturing procedures do not catch bad parts until the post-process inspection stage, when the part has already been removed from the setup. Subsequent attempts at re-machining require that the workpiece be re-fixtured back on the machine which often introduces more error into the process.
The objective of this research is to develop a methodology that integrates pre-process calibration and process-intermittent gaging to enhance the ability of a two-axis vertical turning center to cut a circular arc. The developed methodology is straightforward and integrates the usage of commercially available instrumentation such as the ball bar and on-machine probe for error identification, prediction, and compensation.
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Development of On-Line Inspection System on Bare Fiber Polishing MachineHuang, Fu-Pin 13 August 2004 (has links)
For the requirements of high-speed signal transmission has been increasing. Optical communication system is the way to solve the demands. The 980-nm high-power laser modules are used for optical communication system as the power of the amplifier for long distance communication. The QPSFE is used for coupling between the high-power 980nm laser diodes and the single mode fiber. This research established an on-line inspection system to inspect the fiber endface during the polishing process which is applied on a bare fiber polishing machine. The system we developed is to detect the fiber endface for QPSFE fabrication process. In this paper, we simply use couple charge device (CCD) as a position sensor to detect the grinding situation. The system had been successfully achieved on-inspection purpose, therefore; it will be the key technique toward the automatic bare fiber polishing system.
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An integrated approach to real-time multisensory inspection with an application to food processingDing, Yuhua. January 2003 (has links) (PDF)
Thesis (Ph. D.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2004. / Vachtsevanos, George J., Committee Chair; Dorrity, J. Lewis, Committee Member; Egerstedt, Magnus, Committee Member; Heck-Ferri, Bonnie S., Committee Co-Chair; Williams, Douglas B., Committee Member; Yezzi, Anthony J., Committee Member. Includes bibliography.
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The interaction of ultrasound with the material structure of titanium alloysFoister, Steven A. M. January 1999 (has links)
No description available.
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A generic model for risk-based food inspection in Canada: assessment of initial biological hazards and risk ranking for inspectionMarmah, Nana 27 October 2014 (has links)
Risk-based inspection provides a framework whereby inspection resources can be prioritized and targeted towards foods that pose the highest risk to human health. To provide a risk assessment of the initial biological hazards associated with foods consumed, criteria related to hazard identification, hazard characterization and exposure assessment were developed for all foods inspected by the Canadian Food Inspection Agency.Using Canadian scientific data, food-pathogen pairs most responsible for foodborne illness were developed and ranked. To characterize the overall population burden of these food-pathogen pairs, a model adapted from the European Food Safety Authority (EFSA) was developed which incorporated criteria related to pathogen characteristics and probability of exposure of humans by food.The top risk-ranked food-pathogen pairs were Campylobacter spp. and poultry, pathogenic Escherichia coli and beef, Salmonella spp. and poultry, Salmonella spp. and produce, and Campylobacter spp. and dairy.
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