نتایج جستجو برای: marine sedimentation

تعداد نتایج: 110234  

2013
Zhiyong Liu Chenfeng Liu Yuyong Hou Shulin Chen Dongguang Xiao Fangjian Chen

Microalgae have been considered as a promising biomass for biofuel production, but freshwater resource consumption during the scaled-up cultivation are still a challenge. Obtaining robust marine strains capable of producing triacylglycerols and high value-added metabolites are critical for overcoming the limitations of water resources and economical feasibility. In this study, a marine microalg...

Journal: :Environmental science & technology 2001
C E Reimers L M Tender S Fertig W Wang

Pairs of platinum mesh or graphite fiber-based electrodes, one embedded in marine sediment (anode), the other in proximal seawater (cathode), have been used to harvest low-level power from natural, microbe established, voltage gradients at marine sediment-seawater interfaces in laboratory aquaria. The sustained power harvested thus far has been on the order of 0.01 W/m2 of electrode geometric a...

Journal: :Zeitschrift für Chemie und Industrie der Kolloide 1911

2017
Markus Noack Silke Wieprecht

Introduction and background The presence of microplastic particles (<5mm, MP) in the environment is a problem of growing concern. While research has focused on MP occurrence and impacts in the marine environment, very little is known about their release on land, storage in soils and sediments and transport by run-off and rivers (Nizzetto, 2016). Especially the transport behaviour with involved ...

2008
Helle Ploug Morten Hvitfeldt Iversen Alfred Wegener Gerhard Fischer

We analyzed size-specific dry mass, sinking velocity, and apparent diffusivity in field-sampled marine snow, laboratory-made aggregates formed by diatoms or coccolithophorids, and small and large zooplankton fecal pellets with naturally varying content of ballast materials. Apparent diffusivity was measured directly inside aggregates and large (millimeter-long) fecal pellets using microsensors....

پایان نامه :دانشگاه تربیت معلم - تهران - دانشکده علوم 1387

چکیده ندارد.

Journal: :Geomorphology RAS 2015

Journal: :Eos, Transactions American Geophysical Union 1999

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