نتایج جستجو برای: marine current energy

تعداد نتایج: 1476750  

2016
Louise Kregting Bjoern Elsaesser Robert Kennedy David Smyth Jack O’Carroll Graham Savidge

Arrays of tidal energy converters have the potential to provide clean renewable energy for future generations. Benthic communities may, however, be affected by changes in current speeds resulting from arrays of tidal converters located in areas characterised by strong currents. Current speed, together with bottom type and depth, strongly influence benthic community distributions; however the in...

2013
Zhibin Zhou Franck Scuiller Frédéric Charpentier Mohamed Benbouzid

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 ...

Journal: :jundishapur journal of natural pharmaceutical products 0
mohamad reza shushizadeh research center of marine pharmaceutical science, ahvaz jundishpur university of medical science, ir iran +98-6114445655, [email protected];[email protected]; research center of marine pharmaceutical science, ahvaz jundishpur university of medical science, ir iran +98-6114445655, [email protected];[email protected] azar mostoufi research center of marine pharmaceutical science, ahvaz jundishpur university of medical science, ir iran +98-6114445655, [email protected];[email protected] marjan fakhrian islamic azad university, science and research branch-khoozestan, ir iran

background marine sponge/nano-cuo as a natural catalyst efficiently catalyzed the sulfonylation reaction of p-chlorobenzene sulfonyl chlorides with amines in order to prepare sulfonamides. the advantages included use of a natural catalyst, ease of handling, requirement of a very small amount of catalyst, mild reaction condition and appropriateness to high yield. objectives the current study aim...

Journal: :Journal of Marine Science and Engineering 2022

The marine renewable energy (MRE) industry is being stimulated by the growing world demand, climate change mitigation policies, and land-use conflicts [...]

Journal: :Advances in Mechanical Engineering 2015

2015
Yongjun Dong Wanqiang Zhu Xueming Zhang Jingfu Guo

To improve the operational reliability of renewable energy conversion system, high-performance polymers and engineering plastics are used to make some parts and components of the energy conversion device, especially in the marine renewable energy generation field. In this article, special plastic bearings based on the material of polyoxymethylene (POM) were designed and applied in the power gen...

2006
Maki Hayashi Tsutomu Unemoto Kenichi Mochida

Marine bacteria require a significant amount of NaCl for optimal growth and have quite different physiological character from terrestrial counterparts. For example, marine bacteria possess a unique type ofNADH:quinone reductase, a membrane-boundenzymewhich takes part in the respiratory chain1}. This enzyme requires Na+ for its activity and with its Na+-pumping activity generates sodium-motive f...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی 1391

this research is about the political economy of china in central asia. in this research the political & economic interactions affected on chinas political economy in central asia are examined. chinas goal of presence in central asia including political-security, economic and energy goals is described in one part. in another part, the trade relations between china and central asian countries ar...

Journal: :Journal of Korean Society of Coastal and Ocean Engineers 2013

Journal: :Journal of Marine Science and Engineering 2020

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