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The biological pump (or ocean carbon biological pump or marine biological carbon pump) is the ocean's biologically driven sequestration of carbon from the atmosphere and land runoff to the ocean interior and seafloor sediments. [ 1] In other words, it is a biologically mediated process which results in the sequestering of carbon in the deep ...
The basic working principle of an air-operated double diaphragm pump. Cross-section sketch of diaphragm fuel pump Air-operated double diaphragm pump. A diaphragm pump (also known as a Membrane pump) is a positive displacement pump that uses a combination of the reciprocating action of a rubber, thermoplastic or teflon diaphragm and suitable valves on either side of the diaphragm (check valve ...
e. A biogeochemical cycle, or more generally a cycle of matter, [ 1] is the movement and transformation of chemical elements and compounds between living organisms, the atmosphere, and the Earth's crust. Major biogeochemical cycles include the carbon cycle, the nitrogen cycle and the water cycle. In each cycle, the chemical element or molecule ...
A carbon nanotube field-effect transistor ( CNTFET) is a field-effect transistor that utilizes a single carbon nanotube (CNT) or an array of carbon nanotubes as the channel material, instead of bulk silicon, as in the traditional MOSFET structure. There have been major developments since CNTFETs were first demonstrated in 1998.
Measurements of plant carbon allocation to mycorrhizal fungi have been estimated to be 5 to 20% of total plant carbon uptake, [3] [4] and in some ecosystems the biomass of mycorrhizal fungi can be comparable to the biomass of fine roots. [5] Recent research has shown that mycorrhizal fungi hold 50 to 70 percent of the total carbon stored in ...
Carburetor. A carburetor (also spelled carburettor or carburetter) [ 1][ 2][ 3] is a device used by a gasoline internal combustion engine to control and mix air and fuel entering the engine. [ 4] The primary method of adding fuel to the intake air is through the Venturi tube in the main metering circuit, though various other components are also ...
For a four-day coverage plan on a 20-year-old car, it was about $50. This worked out to a manageable $12.50 per day, but it’s important to note that actual rates will vary based on the details ...
NCBI. proteins. Flow of ions. Alpha and beta units. The sodium–potassium pump ( sodium – potassium adenosine triphosphatase, also known as Na+/K+-ATPase, Na+/K+ pump, or sodium–potassium ATPase) is an enzyme (an electrogenic transmembrane ATPase) found in the membrane of all animal cells. It performs several functions in cell physiology .