Fluorescent resin particles which comprise a water-soluble fluorescent dye and a polymer made from a monomer mixture.

In a method of ice distribution and data processing for ship ice resistance experiment in broken ice field, the ice floe is uniformly distributed in the broken ice field before each ship ice resistance experiment with eliminating the mutually overlapped broken ice to make it close to the experimental design working condition, and independent repeated experiments are carried out on each ship ice resistance experiment to reduce the influence of accidental factors; after finishing the experiment, the experimental data are divided into intervals and the experimental data corresponding to unreasonable subdomains are eliminated by mathematical statistics, and the uncertainty analysis is carried out; image correction is carried out for pictures of in broken ice field in the pre-experimental data, and the pictures are divided to obtain subdomain pictures to calculate the actual coverage rate of each subdomain; the ice resistance in the experimental data corresponding to each remaining subdomain is modified.

In a method of ice distribution and data processing for ship ice resistance experiment in broken ice field, the ice floe is uniformly distributed in the broken ice field before each ship ice resistance experiment with eliminating the mutually overlapped broken ice to make it close to the experimental design working condition, and independent repeated experiments are carried out on each ship ice resistance experiment to reduce the influence of accidental factors; after finishing the experiment, the experimental data are divided into intervals and the experimental data corresponding to unreasonable subdomains are eliminated by mathematical statistics, and the uncertainty analysis is carried out; image correction is carried out for pictures of in broken ice field in the pre-experimental data, and the pictures are divided to obtain subdomain pictures to calculate the actual coverage rate of each subdomain; the ice resistance in the experimental data corresponding to each remaining subdomain is modified.

A prediction portion predicts states including a water level of the wave at a prediction subject location. In a case in which inputs of the flow velocity in a line-of-sight direction of the wave at each observation location have been received, an estimation portion estimates states of waves including the water level thereof at the prediction subject location. The estimation of the states is based on a difference between the flow velocity in a line-of-sight direction of the wave at each input observation location, and the flow velocity in a line-of-sight direction of the wave at each input observation location obtained by converting states of the wave using an observation matrix. A determination portion causes the predictions of the states and the estimation of the states to be repeated until predetermined conditions have been satisfied.

A liquefied natural gas (LNG) bunkering equipment test and evaluation system is provided. The system includes a storage tank module configured to store a liquefied natural gas, a supply module for connecting the storage tank module and the bunkering module, a bunkering module configured to perform bunkering by being supplied with the liquefied natural gas, a simulation module provided at a part under the bunkering module and the supply module and the simulation module is configured to simulate a maritime situation by giving a fluidity to the bunkering module and the supply module, and a controller configured to control a driving of the simulation module, thereby simulating various situations of sea areas by giving fluidity to the storage tank module and the bunkering module.

A device for measuring liquid sloshing force of a ship transporting liquid. The device includes a first cuboidal frame; a second cuboidal frame; a rotating mechanism; a dynamometer; and a liquid tank disposed in the second cuboidal frame. The second cuboidal frame is pivotally connected to the first cuboidal frame via the rotating mechanism. The first cuboidal frame includes a first horizontal plane frame, a second horizontal plane frame, a plurality of upright tubes connecting the first horizontal plane frame and the second horizontal plane frame, and an X-shaped support rod disposed between the first horizontal plane frame and the second horizontal plane frame. The second cuboidal frame includes a third horizontal plane frame including two longitudinal beams and two transverse beams, a longitudinal U-shaped bar disposed between the two transverse beams, and a plurality of transverse U-shaped bars disposed between the two longitudinal beams.

The present invention is a method for real-time determination of the forces exerted by incident waves on a mobile part of a wave energy system. Models are constructed of the radiation force exerted on the mobile part and of the drag force exerted on the mobile part and a non-linear model of the wave energy system dynamics. The invention uses only measurements of the float kinematics (position, velocity and possibly acceleration) and of the force applied by a converter machine, which measurements are normally available on a wave energy system since they are used for control and supervision thereof. Determination of the excitation force exerted by incident waves on the mobile part uses the models, the measurements and an unscented Kalman filter.

The present invention is a method for real-time determination of the forces exerted by incident waves on a mobile part of a wave energy system. Models are constructed of the radiation force exerted on the mobile part and of the drag force exerted on the mobile part and a non-linear model of the wave energy system dynamics. The invention uses only measurements of the float kinematics (position, velocity and possibly acceleration) and of the force applied by a converter machine, which measurements are normally available on a wave energy system since they are used for control and supervision thereof. Determination of the excitation force exerted by incident waves on the mobile part uses the models, the measurements and an unscented Kalman filter.

The present disclosure discloses a testing apparatus for directional simulation of dynamic collision between a deep-sea shell structure and seabed, including: a launching device, a high-pressure water pump device, a high-speed camera, a sensor system, a data collection and control system, etc. This device is installed in a geotechnical centrifuge for experiment, a super-gravity environment is provided to meet requirements of simulation of a deep-sea environment, and a deep-sea high-pressure environment is created through a high-pressure water pump device by superposition. A direction of the launching device is adjusted through a universal rotating shaft to control the shell structure to be launched from a specified direction to collide with soil at a predetermined position. A high-speed camera is used to capture an entire experiment process, and strain and acceleration sensors are used to collect experiment data.

The present disclosure discloses a testing apparatus for directional simulation of dynamic collision between a deep-sea shell structure and seabed, including: a launching device, a high-pressure water pump device, a high-speed camera, a sensor system, a data collection and control system, etc. This device is installed in a geotechnical centrifuge for experiment, a super-gravity environment is provided to meet requirements of simulation of a deep-sea environment, and a deep-sea high-pressure environment is created through a high-pressure water pump device by superposition. A direction of the launching device is adjusted through a universal rotating shaft to control the shell structure to be launched from a specified direction to collide with soil at a predetermined position. A high-speed camera is used to capture an entire experiment process, and strain and acceleration sensors are used to collect experiment data.