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 near-sea-bottom hydrate detection system, which includes a ship-borne part and a deep-towing part. The ship-borne part includes: a comprehensive monitoring host, configured to send an acquisition triggering pulse signal, and transmit the signal to the deep-towing part; and receive near-sea-bottom information acquired by the deep-towing part, and determine a near-sea-bottom condition according to the near-sea-bottom information.

Abstract: Seismic exploration system based on an underwater mobile platform including: an add-on type electronic cabin, a circuit integration device, an underwater mobile platform, a mounting mechanism, a multi-electrode emission array, and a multi-channel hydrophone linear array; where the electronic cabin is externally fixed on the underwater mobile platform through the mounting mechanism, the circuit integration device is disposed in the electronic cabin, the circuit integration device is connected with the multi-electrode emission array, and the multi-electrode emission array is connected with the multi-channel hydrophone linear array; and the circuit integration device includes a multi-channel underwater acoustic data acquisition device, a sound source host, a photoelectric junction box and a battery pack, where the acoustic data acquisition device is connected with the sound source host, and the photoelectric junction box is connected with the acoustic data acquisition device, the sound source host, the battery p

Abstract: The present invention discloses a near-sea-bottom hydrate detection system, which includes a ship-borne part and a deep-towing part. The ship-borne part includes: a comprehensive monitoring host, configured to send an acquisition triggering pulse signal, and transmit the signal to the deep-towing part; and receive near-sea-bottom information acquired by the deep-towing part, and determine a near-sea-bottom condition according to the near-sea-bottom information.

Abstract: The present invention discloses a new submerged buoy data acquisition system, including a battery compartment, a main control processor, a GPS receiver, a gigabit Ethernet interface module, and a plurality of data acquisition boards, where the GPS receiver is connected to the main control processor, and the main control processor is connected to a host computer by using the gigabit Ethernet interface module; the data acquisition board includes a hydrophone sensor, a front-end drive circuit, an AD conversion circuit, a clock module, a DA conversion circuit, an FPGA, an ARM processor, and a storage module; the hydrophone sensor is connected to the AD conversion circuit by using the front-end drive circuit, the AD conversion circuit is connected to the FPGA, the FPGA is connected to the ARM processor, the storage module is connected to the ARM processor, the DA conversion circuit is connected to the FPGA and the clock module, the clock module is connected to the FPGA, and the ARM processor is connected to the ma

Abstract: The present disclosure provides a LADCP-USBL combined observation and data processing method and an apparatus. According to one embodiment, an exemplary method may include: acquiring bottom tracking data from the LADCP, position trajectory data collected by the USBL, and ocean current data collected by the LADCP; removing abnormal data points from the position trajectory data; performing azimuth angle correction on the position trajectory data according to the bottom tracking data to determine a movement velocity of the LADCP; and calculating an absolute ocean current velocity according to the movement velocity of the LADCP and the ocean current data.

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

Abstract: Seismic exploration system based on an underwater mobile platform including: an add-on type electronic cabin, a circuit integration device, an underwater mobile platform, a mounting mechanism, a multi-electrode emission array, and a multi-channel hydrophone linear array; where the electronic cabin is externally fixed on the underwater mobile platform through the mounting mechanism, the circuit integration device is disposed in the electronic cabin, the circuit integration device is connected with the multi-electrode emission array, and the multi-electrode emission array is connected with the multi-channel hydrophone linear array; and the circuit integration device includes a multi-channel underwater acoustic data acquisition device, a sound source host, a photoelectric junction box and a battery pack, where the acoustic data acquisition device is connected with the sound source host, and the photoelectric junction box is connected with the acoustic data acquisition device, the sound source host, the battery p

Abstract: A marine magnetism detection device and a detection method are provided. The device includes a surveying ship, an onboard laboratory magnetism measurement portion arranged on the surveying ship, an aerostat shell and an aerostat magnetism measurement portion arranged inside the aerostat shell. The aerostat shell is connected to the surveying ship via a rope, and the aerostat shell floats in air. The aerostat magnetism measurement portion includes a magnetic sensor, an electronic magnetism data acquisition unit and an aerostat transmission unit; and the onboard laboratory magnetism measurement portion includes a data recording computer and a laboratory transmission unit. The marine magnetism detection device and method of the present invention are advantageously not limited by the working sea area and can also operate with other onboard devices and dragging devices.

Abstract: The present invention discloses a marine magnetism detection device and a detection method. The device comprises a surveying ship, an onboard laboratory magnetism measurement portion arranged on the surveying ship, an aerostat shell and an aerostat magnetism measurement portion arranged inside the aerostat shell, wherein the aerostat shell is connected to the surveying ship via a rope, and the aerostat shell floats in air; the aerostat magnetism measurement portion comprises a magnetic sensor, an electronic magnetism data acquisition unit and an aerostat transmission unit; and, the onboard laboratory magnetism measurement portion comprises a data recording computer and a laboratory transmission unit. The marine magnetism detection device and method of the present invention will not be limited by the working sea area and can also operate with other onboard devices and dragging devices.

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.

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.

Abstract: A composite marine bacterial liquid for the synergic degradation of high-molecular-weight polycyclic aromatic hydrocarbons (HMW PAHs) and the preparation method thereof. The composite marine bacterial liquid is generated by mixing the fermented culture liquid of a stain of Cycloclasticus sp. PY97M and a stain of Marinobacter sp. D15-8W, the cell concentration of each is 107-109 CFU/mL. The preparation method includes: inoculating the seed liquid of Cycloclasticus strains and Marinobacter strains individually into the sodium acetate medium or M8 medium, fermenting under the condition of defoaming by flowing addition of defoamer, and mixing the fermented cultures to obtain the composite marine bacterial liquid, then preparing a 5-fold concentrated liquid by centrifuging and storing at 4° C.

Abstract: A composite marine bacterial liquid for the synergic degradation of high-molecular-weight polycyclic aromatic hydrocarbons (HMW PAHs) and the preparation method thereof. The composite marine bacterial liquid is generated by mixing the fermented culture liquid of a stain of Cycloclasticus sp. PY97M and a stain of Marinobacter sp. D15-8W, the cell concentration of each is 107-109 CFU/mL. The preparation method includes: inoculating the seed liquid of Cycloclasticus strains and Marinobacter strains individually into the sodium acetate medium or M8 medium, fermenting under the condition of defoaming by flowing addition of defoamer, and mixing the fermented cultures to obtain the composite marine bacterial liquid, then preparing a 5-fold concentrated liquid by centrifuging and storing at 4° C.