نتایج جستجو برای: sea bed shapes

تعداد نتایج: 226390  

2007
Eugenio Pugliese Carratelli Fabio Dentale Ferdinando Reale Don Melillo

The limited wavelength and the rapidly changing conditions due to short fetches and complex coastal shapes in enclosed seas pose a big challenge to the applications of satellite SAR data. In order improve the understanding of some aspects of image formation in such conditions, the authors are pursuing a long term work mainly based on numerical implementation of satellite SAR two-wavelength mode...

Journal: :فیزیک زمین و فضا 0
همایون خوشروان دکتری تخصصی زمین شناسی، رئیس مرکز ملی مطالعات و تحقیقات دریای خزر، موسسه تحقیقات آب سمیه روحانی زاده کارشناس ارشد رسوب شناسی، کارشناس پژوهشی مرکز ملی مطالعات و تحقیقات دریای خزر جواد ملک کارشناس ارشد مهندسی عمران، مربی پژوهشی موسسه تحقیقات آب قاسم نژادقلی کارشناس ارشد فیزیک دریا، کارشناس پژوهشی مرکز ملی مطالعات و تحقیقات دریای خزر

in this research work the classification of the southern coasts of the caspian sea is performed using sedimentary and morphodynamic indices. this includes field study of morphodynamic characteristics of the shore structures. field measurements include in situ samplings of sediments and actual observations of structures on site. these field activities were done along six transects in the dry coa...

2001
Jean-François Lots David M. Lane Emanuele Trucco François Chaumette

This paper introduces a 2 0 visual servoing technique for the station keepiirg of an unmanned underwater vehicle (UUV) with respect to planar targets on the sea bed. The underwater vehicle is subject to sea current disturbances which make it drift from its desired position. Feature points from unmarked objects are extracted and tracked with a sparse feature tracker developed in-house [I]. The s...

2010
Carl Leuschen John Ledford Fernando Rodriguez-Morales William Blake Ben Panzer Sarah Seguin

The Multi-Channel Coherent Radar D e p t h S o u n d e r (MCoRDS) system was developed by the Center for Remote Sensing of Ice Sheets (CReSIS) at the University of Kansas to map the thickness and underlying bed elevation for glaciers in Antarctica on the NASA Operation Ice Bridge (OIB) mission. Scientists believe that the lubricating effect of liquid water at the bed-ice interface will signific...

Journal: :Metals 2021

Due to increasing bacterial resistance antibiotics, surface coatings of medical devices with antimicrobial agents have come the fore. These on were basically thin that delaminated from due fluid environment and biomechanical activities associated in-service implants. The conventional methods manufacturing been used alloy metal-based (MBA) such as Cu Ti6Al4V enhance its antibacterial properties ...

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