نتایج جستجو برای: marine current energy

تعداد نتایج: 1476750  

2013
Zhibin ZHOU

Variations of marine current speed can lead to strong fluctuations in the power extracted by a marine current turbine (MCT). During short-time period, swell effect is the main cause for the current speed variations. Conventional tip speed ratio Maximum Power Point Tracking (MPPT) algorithm will require the MCT to accelerate or to decelerate frequently under swell effect, which can cause severe ...

2009
Zhiyong Li

Marine animals and plants such as sponges, sea squirts, corals, worms and algae host diverse and abundant symbiotic microorganisms. Marine microbial symbionts are possible the true producers or take part in the biosynthesis of some bioactive marine natural products isolated from the marine organism hosts. Investigation of the pharmaceutical metabolites may reveal the biosynthesis mechanisms of ...

2014
Walid Elgenaidi Thomas Newe

Marine environmental monitoring based on wireless sensor networks (WSN) is a challenging area of research due to the instability of the water field. Due to the characteristics of the water environment, there are certain considerations which must be taken into account before the establishment of marine based wireless sensor networks. These include the deployment of wireless nodes (WNs), energy c...

2008
Zhen-xiong CAI Han-lin LI Jun-ming LIN Jin-biao LIN

Exist forms and criticalities of disfigurements of marine engines were studied from main propulsive engine, auxiliary facility and hull. Eddy current Non-destructive testing method was brought forward to disfigurement inspection of marine engines with advantages such as celerity and nicety. Cracks, as one form of disfigurements, testing of marine engines were demonstrated in detail, and the dev...

Journal: :Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology 2007
Sigrid Wuttke Saad El Naggar Thaddäus Bluszcz Otto Schrems

Ship-borne measurements of spectral as well as biologically effective UV irradiance have been performed on the German research vessel Polarstern during the Atlantic transect from Bremerhaven, Germany (53.5 degrees N, 8.5 degrees E), to Cape Town, South Africa (33.6 degrees S, 18.3 degrees E), from 13 October to 17 November 2005. Such measurements are required to study UV effects on marine organ...

2014
Tyler Nichol Brian Polagye Jim Thomson

Numerical Modeling of Compliant-Moored System Dynamics with Applications to Marine Energy Converters

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2015
mostafa alizadeh esmail ghahramani mansur zarrabi sara hashemi

in this study, removal of methylene blue by electro-coagulation method using aluminum and iron electrodes was investigated. the influence of the operating parameters such as contact time, current density, anode type, inter-electrodes distance, initial and final ph and energy consumption rate was determined. dye removal was increased with increases in solution ph, current density and contact tim...

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