The floating gates, which have a hollow cavity inside, work according to Archimedes' principle of buoyancy. When compressed air is pumped in, emptying the gates of water, the buoyancy of the giant panels will be greater than their weight, and in just 30 minutes the barrier will float above the surface. The gates are attached to the seabed with hinges, which are designed to absorb the force of waves and keep the barrier in place. The gates will only be raised when waves are higher than 1.1 meters, to reduce interruption of the sea currents to a minimum.

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Cu~2+ can activate marmatite . Eh of pulp has great effect on the buoyancy of them. New inhibition regeants named CSU-1 can inhibitmarmatite buoyancy. In high pH value and low Eh, use lot of calcareousness, marmatite can separated from pyrrhppite easily in their concentrate mixture.

少量的Cu~(2+)可強(qiáng)烈地活化鐵閃鋅礦；礦漿電位對三種礦物的浮選有明顯的影響日韩中文字幕在线另类在线；新型抑制劑CSU-1可有效地抑制鐵閃鋅礦美女不带套日出白浆免费视频；采用高石灰用量、高pH礦漿和低電位環(huán)境精品国语91，實現(xiàn)混合精礦中鐵閃鋅礦與磁黃鐵礦的分離美国淫色网。

Flotation of the three pure sulfide minerals (named amesonite, marmatite and pyrrhppite) used different regeants, is discussed as to know how the useful part is separated from the ore. The flotation behavior of the three minerals is that in low pH value they have good buoyancy,while in high pH value they have bad buoyancy.

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This extra buoyancy is called reserve buoyancy;or,to be exact,the resever buoyancy which is measured by freeboard refers to the watertight volume of hull above load line.

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While with the Coriolis force omitted, the flow in the cavity is under the influence of centrifugal buoyancy force, which can develop from stable to unstable as this force enhances. The centrifugal buoyancy force could lead to flow unstably.

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Buoyancy modules are important constituent parts of deepwater drilling riser systems. The main function of buoyancy modules is to reduce wet weight of riser as well as rig tension demand.

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The results show that the increase of the buoyancy force by increasing the diameter and length of buoyancy modules is favorable for improving the static performances and reducing the requirements for the top tension of the riser, but arranging the buoyancy modules on lower joints of riser string can lead to hard operations of hang off, installation and retrieval of the riser, there fore the arrangement of buoyancy modules and slick riser joints should be considered carefully.

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