| Project/Area Number |
14350271
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
水工水理学
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| Research Institution | Kinki University |
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Principal Investigator |
ETOH Takeharu Kinki University, School of Science and Engineering, Professor, 理工学部, 教授 (20088412)
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| Co-Investigator(Kenkyū-buntansha) |
TAKEHARA Kohsei Kinki University, School of Science and Engineering, Associate Professor, 理工学部, 助教授 (50216933)
NAKAGUCHI Yuzuru Kinki University, School of Science and Engineering, Associate Professor, 理工学部, 助教授 (30188916)
KAJII Hironobou Kinki University, School of Science and Engineering, Assistant Professor, 理工学部, 講師 (50088481)
TAKANO Yasuhide Kinki University, School of Science and Engineering, Assistant professor, 理工学部, 講師 (80330231)
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| Project Period (FY) |
2002 – 2004
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| Project Status |
Completed (Fiscal Year 2004)
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| Budget Amount *help |
¥16,800,000 (Direct Cost: ¥16,800,000)
Fiscal Year 2004: ¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 2003: ¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 2002: ¥11,400,000 (Direct Cost: ¥11,400,000)
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| Keywords | Tethered Balloon / PTV / Local Remote Censing / Air Sampler / Infrared Light / 繋留型飛行船 / ローカルリモートセンシング / 赤外線レーザー / 赤外線カメラ / 係留型気球 / 大気サンプリング / PIV / トレーサー / 表面流速計測 |
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| Research Abstract |
A.Development of Application Technologies of PTV to Natural Water Bodies
(1)An efficient technology was developed to detect tracer particles for PTV on surfaces of natural water bodies, such as rivers, lakes, etc. The tracers can be separated by a combination of discriminant analysis of color images and duration analysis, which removes candidates of tracer particle images disappearing within two seconds.
(2)The technology was applied to measurement of the surface flow field of Yodo river, etc. The flow field was also measured with ADCP (Acoustic Doppler Current Profiler) carried by a boat. The results nicely agreed with each other.
(3)A technique for simultaneous measurement of wave and flow under wind waves was developed.
(4)In parallel, seasonal variations of chemical components in Yodo river were measured, especially on Nitrogen and Phosphor.
B.Development of Air Samplers Carried along a Tether of a Balloon and/or a Kite
(1)Air samplers attached to a tether of a balloon was developed. Several samplers can be attached to a tether to collect air samples at various heights.
(2)In a weak-wind condition, the samplers were tested. A dust dome was detected as expected, which showed the maximum concentration of dusts at about 50m from the ground, and less concentration at the ground and at 100m. The dust dome was also visualized by a camera mounted on the balloon.
C.Relevant Research Contributions
An infrared video camera was introduced by the financial support of this project. The camera was applied to other researches relating to infrared image analyses, resulting in the following contributions :
(1)Application of infrared video cameras to reduce traffic accidents at the corners and intersections of roads in night.
(2)Applications to various research projects on temperature environment around human bodies.
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