Abstract: A seafloor observation network-based subsurface buoy device with real-time power supplying and high-speed data transmitting is provided. The subsurface buoy device includes a seabed base deployed on the seafloor and a vertical mooring system connected to a bottom surface of the seabed base to extend to the sea surface. The seabed base serves as a gravity anchor to enable the subsurface buoy device to be positioned stably at a layout site, and is further used for obtaining power supply of the subsurface buoy device from a junction box of a seafloor observation network. The seabed base also sends the management and control commands from the junction box to the vertical mooring system, and transmits the data collected by the vertical mooring system back to the junction box in real time.

Abstract: A primary node of a seafloor observatory network based on constant current power supply is provided. The primary node is connected in series to a submarine cable of a backbone network. The primary node is connected to a shore station and an adjacent primary node by submarine cable terminal boxes, respectively. The primary node includes an underwater power supply and a communication control module. The underwater power supply is used for converting constant current power provided by the shore station into power for the primary node and some backup power, and outputting direct-current constant voltage power for the communication control module, and is further used for controlling the primary node to access and exit from the network. The communication control module is used for monitoring the internal state of the primary node by control system backup, and sending the state information and data to the shore station.

Abstract: A primary node of a seafloor observatory network based on constant current power supply is provided. The primary node is connected in series to a submarine cable of a backbone network. The primary node is connected to a shore station and an adjacent primary node by submarine cable terminal boxes, respectively. The primary node includes an underwater power supply and a communication control module. The underwater power supply is used for converting constant current power provided by the shore station into power for the primary node and some backup power, and outputting direct-current constant voltage power for the communication control module, and is further used for controlling the primary node to access and exit from the network. The communication control module is used for monitoring the internal state of the primary node by control system backup, and sending the state information and data to the shore station.

Abstract: The present invention relates to a water-stable Titanium-based metal-organic framework (MOF) material having a high degree of condensation, i.e. an oxo to Ti ratio (or oxo to metal ratio, in the case of doped Ti-based MOFs) >1.0; a process of preparing same and uses thereof, particularly for heterogeneously catalyzed chemical reactions, for gas storage/separation/purification, for information storage, laser printing or as an oxygen indicator, or as proton conductive material (fuel cells), optoelectronic material (photovoltaic cells including Grätzel cells), as a matrix for encapsulating active principles (medicaments, cosmetics), or else as sensing material.

Abstract: The present invention relates to a water-stable Titanium-based metal-organic framework (MOF) material having a high degree of condensation, i.e. an oxo to Ti ratio (or oxo to metal ratio, in the case of doped Ti-based MOFs) >1.0; a process of preparing same and uses thereof, particularly for heterogeneously catalyzed chemical reactions, for gas storage/separation/purification, for information storage, laser printing or as an oxygen indicator, or as proton conductive material (fuel cells), optoelectronic material (photovoltaic cells including Grätzel cells), as a matrix for encapsulating active principles (medicaments, cosmetics), or else as sensing material.