In this paper a new algorithm has been designed to remove the problem of over-enhancement found in Mix CLAHE especially for underwater images. The underwater image suffers from low contrast and resolution due to dispossessed visibility circumstances, hence an object identification become typical task. The processing of underwater image captured is necessary because the quality of underwater ima...

Underwater Wireless Sensor Networks (UWSNs) is much more attractive area for the researchers due to its versatile applications like tactical surveillance, assisted navigation, equipment monitoring, oceanography data collection, pollution monitoring, offshore exploration, disaster prevention and seismic monitoring. The researchers are also collecting the scientific data from underwater environme...

The specific characteristics of underwater environments introduce new challenges for networking protocols. In this paper, a specialized architecture for underwater sensor networks (UWSNs) is proposed and evaluated. Experiments are conducted in order to analyze the suitability of this protocol for the subaquatic transmission medium. Moreover, different scheduling techniques are applied to the ar...

Underwater Acoustic methods have been extensively used to locate and identify marine objects. These applications include locating underwater vehicles, finding shipwrecks, imaging sediments and imaging bubble fields. Ocean is fairly transparent to sound and opaque to all other sources of radiation. Acoustics technology is the most effective tool for monitoring this environment because of the sou...

Marine buoy is an important part of underwater acoustic communication system. It is of great significance to track and locate it. It is widely used in ocean environment three-dimensional monitoring, underwater multimedia communication, underwater mobile carrier navigation and positioning, marine resources detection, remote control of submarine topography mapping and offshore oil industry, data ...

‘OGjaerevoll, 0. 1963. Botanical investigations in central Alaska especially in the White Mountains. Part 11. Det Kg1 Norske Videnskabers Selskabs Skrifter, 4. 115 pp. 11L6ve, D. and N. J. Freedman. 1956. A plant collection from SW Yukon. Botaniska Notiser, 109: 153-211. IzViereck, L. A. 1967. Plants above 2,140 meters (7,000 feet) in the Alaska Range. Bryologist, 70: 345-347. 13Bakewel1, A. 19...

The potentially negative consequences resulting from cliff recession are a matter of serious concern in many coastal areas worldwide. The assessment of these kind of processes has traditionally been performed by calculating average cliff recession rates and projecting them into the future, without taking into consideration the diverse factors affecting cliff dynamics and stability. In this work...

Article history: Incised coastal channels ar Received 22 February 2008 Received in revised form 21 April 2008 Accepted 23 April 2008 Available online 8 May 2008

in this paper, for the purpose of investigating horizontal sound propagation, based on the results obtained from practical measurements in the strait of hormoz and available data on sound speed variations at different depths, a comprehensive model for shallow water multipath underwater acoustic channel is presented. mathematical modeling of multipath effect is based on ray theory and the image ...