Abstract: The present invention discloses an ocean surface water continuous sampling device, the device comprises a support that ascends and descends along the stern, on the support a sampling pipe for drawing and sampling the surface water, and hydraulic tanks for driving the support up and down to send the sampling pipe to where the surface water is are provided, and a buffer mechanism for avoiding damage due to constant water resistance to the sampling pipe during sailing is provided on the support too. Configuration of the depth transducer, control unit and hydraulic tanks, promises surface water accurate and continuous collection during research vessel travelling; the buffer mechanism works effectively in avoiding radial and axial damage to the sampling pipe due to continuous water current resistance, which successfully relieves the resistance, and prolongs sampling pipe life; and automatic surface water collection is realized with the automatic control design.

Abstract: The present invention discloses a submarine seismic monitoring apparatus and system based on the submarine Internet of things.

Abstract: The present invention discloses a submarine seismic monitoring apparatus and system based on the submarine Internet of things.

Abstract: A preparation method of filter element for swift and highly efficient adsorption of Cs includes the following steps: to a substrate material, adding a coupling agent with 1-3 wt % and ammonium phosphomolybdate with 1-10 wt %, based on the weight of the substrate material; heating to 160˜220° C.; stirring and mixing evenly so that the substrate material is combined with ammonium phosphomolybdate; spining through 5 ?m micropore, the spun filament forming adsorbent filter element with a thickness of 5-50 mm in the rotational cylinder framework material; evenly coating ammonium phosphomolybdate on the outer surface of the adsorbent filter element; and stabilizing and implementing an aging process by heating to 80-120° C. for 3-12 h. The filter element prepared by this method provides an excellent water permeability, oxidization resistance, long-term immersion in hot water of below 100° C., radiation decomposition resistance, stable adsorption, swift detection, high efficiency and precision.