REPLAY SYSTEM AND METHOD OF SHIP COLLISION ACCIDENTS USING FREE RUNNING MODEL TEST

    公开(公告)号:US20230177237A1

    公开(公告)日:2023-06-08

    申请号:US18060959

    申请日:2022-12-01

    CPC classification number: G06F30/20

    Abstract: Provided is a replay system of ship collision accidents using a free running model test including a ship collision replay simulation system configured to replay the ship collision accidents by receiving a navigation trajectory of the ship collision accidents; a free running model system configured to perform a free running model test of the collision accident ship using a free running model ship; and a free running control system configured to remotely perform the free running model test, in which the replay of the ship collision accidents is performed by simultaneously performing a simulation in the ship collision replay simulation system and a free running model test in the free running model system.

    APPARATUS AND METHOD FOR TRACKING LOCATION USING CONTROL PLATFORM OF SMALL BUOY FOR SIMULATING MARINE POLLUTANTS

    公开(公告)号:US20220404507A1

    公开(公告)日:2022-12-22

    申请号:US17731964

    申请日:2022-04-28

    Abstract: This application relates to an apparatus for tracking location using a control platform of a small buoy for simulating marine pollutants, in which at least one small observation buoy floats on the ocean, and a relay buoy collects location information from the observation buoy and provides the collected location information to a weather information management server. The apparatus may include at least one observation buoy and a relay buoy, the observation buoy including a GPS receiver which receives a signal transmitted from a GPS satellite and generate location information. The apparatus may also include a communicator performing wireless transmission and reception of signals with the relay buoy, and a power source providing driving power to the GPS receiver and the communicator. The relay buoy may receive location information from the at least one observation buoy and provide the received location information to a weather information management server.

    CEMENT MORTAR COMPOSITION REINFORCED WITH SHREDDED WASTE FISHING NET AND METHOD OF MANUFACTURING SAME

    公开(公告)号:US20220112128A1

    公开(公告)日:2022-04-14

    申请号:US17467028

    申请日:2021-09-03

    Abstract: This application relates to a cement mortar composition reinforced with a shredded waste fishing net and a method of manufacturing the cement mortar composition. In one aspect, the cement mortar composition includes cement mortar including cement, fine aggregate, and water and 0.5 to 2.0 parts by weight of a fibrous reinforcing material based on 100 parts by weight of the cement mortar. The fibrous reinforcing material may be manufactured by shredding a knotless fishing net and being formed of a single yarn that has a length of 3 mm to 60 mm and a diameter of 0.1 mm to 1 mm. The cement mortar composition that has improved crack resistance and tensile strength and in which an environmentally friendly and inexpensive reinforcing material obtained by shredding a waste fishing net at a random length instead of existing highly-expensive reinforcing material is included may be realized.

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