摘要 :
The advantages of using automatic vision for industrial inspection are described and problems encountered with binary vision techniques are addressed. Grey scale techniques are examined and the iconic approach, in which the object...
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The advantages of using automatic vision for industrial inspection are described and problems encountered with binary vision techniques are addressed. Grey scale techniques are examined and the iconic approach, in which the object to be inspected is matched to a perfect archetypal image, is examined. Two tests which can be performed on the windows (small critical areas in which the comparison takes place) are evaluated: (1) the correlation coefficient between pixels in the prototype and test windows, and (2) a chi-squared comparison of the grey scale frequency distribution in the two windows. These two statistics, and nine others, are appraised in terms of efficiency, robustness, computational speed, and storage requirements. Two tests are proposed which are said to surpass the two noted above in terms of robustness, compactness, and speed of calculation.
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摘要 :
Onsite inspection techniques currently used on fuel systems at domestic commercial light water reactors were assessed. Those techniques are visual, gamma scanning, sipping, mensural, eddy current, and ultrasonic inspections. The a...
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Onsite inspection techniques currently used on fuel systems at domestic commercial light water reactors were assessed. Those techniques are visual, gamma scanning, sipping, mensural, eddy current, and ultrasonic inspections. The assessment involved a literature survey, meetings with all five reactor fuel suppliers, and visits to three reactor sites.
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The dam is a 2200 ft. long rockfill dam with a hydraulic height of 16 ft. It is considered to be in fair condition. It is small in size with a hazard potential of high. The test flood range for this dam equals the one half Probabl...
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The dam is a 2200 ft. long rockfill dam with a hydraulic height of 16 ft. It is considered to be in fair condition. It is small in size with a hazard potential of high. The test flood range for this dam equals the one half Probable Maximum Flood to full PMF. It is recommended that the MDC engage a qualified engineer to investigate various deficiencies. (Author)
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This dam is a 150 ft. long stone masonry-concrete dam with a height of 18.2 ft. There are deficiencies which must be corrected to assure the continual performance of the dam. Generally the dam is in fair condition. Seepage at the ...
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This dam is a 150 ft. long stone masonry-concrete dam with a height of 18.2 ft. There are deficiencies which must be corrected to assure the continual performance of the dam. Generally the dam is in fair condition. Seepage at the base of the wall directly below the low-level outlet was observed. The dam is classified as small in size having a high hazard potential. (Author).
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The entire dam is about 850 feet long and has two angle points along its face. The center portion of the dam is of stone masonry construction flanked by earthen embankments on each side. The dam is intermediate in size and its haz...
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The entire dam is about 850 feet long and has two angle points along its face. The center portion of the dam is of stone masonry construction flanked by earthen embankments on each side. The dam is intermediate in size and its hazard classification is high. The test flood for this dam is the Probable Maximum Flood. The dam was found to be in poor condition. Failure of the dam will result in serious damage to 3 homes.
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Central Street Dam is a 24 foot high composite masonry and earth dam consisting of a 182 foot wide masonry spillway forming the right half o the dam, a 40 foot long by 15 foot wide masonry/earth retaining wall section located just...
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Central Street Dam is a 24 foot high composite masonry and earth dam consisting of a 182 foot wide masonry spillway forming the right half o the dam, a 40 foot long by 15 foot wide masonry/earth retaining wall section located just to the left of the spillway. The dam is classified as small in size with a high hazard potential. The dam is in fair condition.
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Eclipse Dam includes a concrete gravity dam and spillway about 260 ft. long having a maximum height of 51.5 ft. The dam is in good condition, The size of the dam is intermediate and the hazard potential is high. An investigation i...
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Eclipse Dam includes a concrete gravity dam and spillway about 260 ft. long having a maximum height of 51.5 ft. The dam is in good condition, The size of the dam is intermediate and the hazard potential is high. An investigation is recommended to determine the ability of the structure to withstand overtopping during peak flows in the magnitude of the test flood.
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Erikson Dam is a stone masonry overflow dam across Fort Pond Brook. The dam is a total of 52.8 feet long and a maximum of 16.7 feet high. The dam is considered to be in poor condition. Based on the Corps of Engineers' guidelines, ...
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Erikson Dam is a stone masonry overflow dam across Fort Pond Brook. The dam is a total of 52.8 feet long and a maximum of 16.7 feet high. The dam is considered to be in poor condition. Based on the Corps of Engineers' guidelines, the dam has been classified in the small size category and in the significant hazard category.
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The dam is a former mill pond dam about 330 ft. long. It has a maximum height of about 8 ft. Past inspection records and the lack of operating and maintenance procedures, there are several deficiencies which must be corrected to a...
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The dam is a former mill pond dam about 330 ft. long. It has a maximum height of about 8 ft. Past inspection records and the lack of operating and maintenance procedures, there are several deficiencies which must be corrected to assure the continued performance of the dam. Generally, the dam is in poor condition. It is small in size with a hazard potential of high.
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Goose Pond Dam is about 285 ft. long and 27 ft. high. The facility is considered in fair condition. Based on the intermediate size and high hazard potential, the flood test is the Probable Maximum Flood. Investigations are recomme...
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Goose Pond Dam is about 285 ft. long and 27 ft. high. The facility is considered in fair condition. Based on the intermediate size and high hazard potential, the flood test is the Probable Maximum Flood. Investigations are recommended to determine the stability of the embankment and the effect of seepage.
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