scholarly journals Determination of sea surface characteristics from acoustic tomography data

1990 ◽  
Vol 88 (S1) ◽  
pp. S43-S44
Author(s):  
James F. Lynch ◽  
James H. Miller ◽  
Peter Worcester
Keyword(s):  
Surface Characteristics ◽  
Sea Surface ◽  
Acoustic Tomography ◽  
Tomography Data

Determination of initial tsunami wave shape at sea surface

2017 ◽  
Author(s):  
Mikhail M. Lavrentiev ◽  
Alexey A. Romanenko ◽  
Dmitry E. Kuzakov ◽  
Alexander P. Vazhenin
Keyword(s):  
Tsunami Wave ◽  
Sea Surface ◽  
Wave Shape

Towards Nonlinear Wave Reconstruction and Prediction From Synthetic Radar Images

2016 ◽  
Author(s):  
A. P. Wijaya
Keyword(s):  
Vertical Direction ◽  
Sea Surface ◽  
Sea State ◽  
Operational Effectiveness ◽  
State Reconstruction ◽  
Radar Images ◽  
First Results ◽  
Marine Radar ◽  
Offshore Activities

The use of remotely wave sensing by a marine radar is increasingly needed to provide wave information for the sake of safety and operational effectiveness in many offshore activities. Reconstruction of radar images needs to be carried out since radar images are a poor representation of the sea surface elevation: effects like shadowing and tilt determine the backscattered intensity of the images. In [1], the sea state reconstruction and wave propagation to the radar has been tackled successfully for synthetic radar images of linear seas, except for a scaling in the vertical direction. The determination of the significant wave height from the shadowed images only has been described in [2]. This paper will summarize these methods, and provides the first results for the extension to nonlinear seas.

Analysis Method for Ocean Acoustic Tomography Data Using Kalman Filter –Evaluation by Identical Twin Experiment–

2001 ◽  
Vol 40 (Part 1, No. 5B) ◽  
pp. 3835-3841 ◽  
Author(s):  
Tomio Shinke ◽  
Yasushi Yoshikawa ◽  
Takashi Kamoshida ◽  
Humio Mitsudera
Keyword(s):  
Kalman Filter ◽  
Identical Twin ◽  
Acoustic Tomography ◽  
Analysis Method ◽  
Ocean Acoustic Tomography ◽  
Tomography Data

Identification of Surface Quality of Plastic Electrodes after Blasting

2013 ◽  
Vol 334-335 ◽  
pp. 71-76
Author(s):  
B. Haluzíková ◽  
Jan Valíček ◽  
P. Škubala ◽  
Marta Harničárová ◽  
D. Bražina ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Surface Roughness ◽  
Surface Characteristics ◽  
Injection Molding Process ◽  
Maximum Height ◽  
Molding Process ◽  
Arithmetic Average ◽  
Average Maximum ◽  
Wide Range

Nowadays, plastics have become one of the most demanded materials, replacing the traditional ones such as metals. Therefore, many companies are concerned with the production of plastics, with their distribution and innovation development. Plastics have found utility in a wide range of applications, we use them every day. Measurement of surface roughness of plastic moldings produced by the injection molding process was carried out by a contact profilometer Mitutoyo Surftest SJ401. A reason for this measurement is to obtain information about surface roughness. For further technical adjustment is required to have higher surface roughness what helps to increase electrical conductivity of plastic moldings. This involves determination of a ratio between Ra/Rz (the ratio between the arithmetic average of the roughness profile Ra and the average maximum height of the profile Rz) in order to satisfy customer demand for achieving better surface characteristics leading to an increase in electrical conductivity.

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