Results 241 to 250 of about 2,045,933 (264)
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IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2013
Interferometry provides a high degree of accuracy in the measurement of sub-micrometer deformations; however, the noise associated with experimental measurement undermines the integrity of interference fringes. This study proposes the use of standard deviation in the temporal domain to improve the image quality of patterns obtained from temporal ...
, Chien-Ching Ma, , Ching-Yuan Chang
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Interferometry provides a high degree of accuracy in the measurement of sub-micrometer deformations; however, the noise associated with experimental measurement undermines the integrity of interference fringes. This study proposes the use of standard deviation in the temporal domain to improve the image quality of patterns obtained from temporal ...
, Chien-Ching Ma, , Ching-Yuan Chang
openaire +2 more sources
Nigerian Journal of Theoretical and Environmental Physics
The first continuous measurements of fair-weather atmospheric electric field in Nigeria reveal distinctive diurnal patterns that fundamentally challenge conventional assumptions about atmospheric electrical behaviour in tropical regions. While the global electric circuit is traditionally characterized by the Carnegie curve derived from maritime ...
Olakunle Ogunjobi +4 more
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The first continuous measurements of fair-weather atmospheric electric field in Nigeria reveal distinctive diurnal patterns that fundamentally challenge conventional assumptions about atmospheric electrical behaviour in tropical regions. While the global electric circuit is traditionally characterized by the Carnegie curve derived from maritime ...
Olakunle Ogunjobi +4 more
openaire +1 more source
17th Congress of the International Commission for Optics: Optics for Science and New Technology, 1996
The electronic speckle pattern interferometer in the double pulse addition mode can be used to measure physical parameters in unstable environmental conditions. However, due to additive speckle noise the fringe patterns obtained have poor contrast. Some methods that use subtraction of addition double-pulsed fringe patterns improve fringe visibility but
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The electronic speckle pattern interferometer in the double pulse addition mode can be used to measure physical parameters in unstable environmental conditions. However, due to additive speckle noise the fringe patterns obtained have poor contrast. Some methods that use subtraction of addition double-pulsed fringe patterns improve fringe visibility but
openaire +1 more source
International Journal of Remote Sensing, 2011
Interannual variability of vegetation represented by the temporal standard deviation (STD) of Normalized Difference Vegetation Index (NDVI), temporal STD, was calculated using a 25-year semi-monthly sequence of 8 km resolution NDVI images (Advanced Very High Resolution Radiometer (AVHRR)-Global Inventory Modeling and Mapping Studies (GIMMS) data).
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Interannual variability of vegetation represented by the temporal standard deviation (STD) of Normalized Difference Vegetation Index (NDVI), temporal STD, was calculated using a 25-year semi-monthly sequence of 8 km resolution NDVI images (Advanced Very High Resolution Radiometer (AVHRR)-Global Inventory Modeling and Mapping Studies (GIMMS) data).
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The Tokai journal of experimental and clinical medicine, 1985
Eighty-nine patients with chronic liver disease were selected as the subject for this study. These patients were found to have some abnormalities in health check-ups and confirmed finally by biopsy or laparoscopy findings. As healthy controls, 1633 subjects who had no abnormalities in health checkups, were selected. Serum specimens in the fasting state
M, Niwa +3 more
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Eighty-nine patients with chronic liver disease were selected as the subject for this study. These patients were found to have some abnormalities in health check-ups and confirmed finally by biopsy or laparoscopy findings. As healthy controls, 1633 subjects who had no abnormalities in health checkups, were selected. Serum specimens in the fasting state
M, Niwa +3 more
openaire +1 more source
Standard for Breast Conservation Therapy in the Management of Invasive Breast Carcinoma
Ca-A Cancer Journal for Clinicians, 2002Monica Morrow, Stuart
exaly