Abstract: A vessel operator warning support system includes a personal watercraft (PWC), an information terminal operable to acquire current position information on the PWC and to communicate with the PWC, and a controller configured or programmed to perform a predetermined control based on an engine speed. The information terminal is operable to acquire a navigation speed of the PWC based on the position information, a warning generator is configured or programmed to issue a predetermined warning when the navigation speed exceeds a speed limit in a speed restricted area in which the navigation speed is restricted, and the controller is configured or programmed to disable the warning such that the warning is not issued when the engine speed is equal to or lower than a threshold rotation speed even when the navigation speed exceeds the speed limit.

Abstract: A vessel operator warning support system includes a personal watercraft (PWC), an information terminal operable to acquire current position information on the PWC and to communicate with the PWC, and a controller configured or programmed to perform a predetermined control based on an engine speed. The information terminal is operable to acquire a navigation speed of the PWC based on the position information, a warning generator is configured or programmed to issue a predetermined warning when the navigation speed exceeds a speed limit in a speed restricted area in which the navigation speed is restricted, and the controller is configured or programmed to disable the warning such that the warning is not issued when the engine speed is equal to or lower than a threshold rotation speed even when the navigation speed exceeds the speed limit.

Abstract: A reverse bucket for a jet propulsion device includes a vertical ridge line that faces a discharge opening of a deflector to make a marine vessel move backward, a first inlet region and a second inlet region separated by the ridge line to receive water discharged from the discharge opening, first and second outlet regions to discharge the water received by the first and second inlet regions to the outside, and first and second guide regions to guide the water received by the first and second inlet regions to the first and second outlet regions. The first inlet region, the first guide region, and the first outlet region define a first recess portion including a first opening that faces the discharge opening. The second inlet region, the second guide region, and the second outlet region define a second recess portion including a second opening that faces the discharge opening.

Abstract: A method and apparatus to reduce or prevent misrecognition of an actual azimuth of a marine vessel includes acquiring a speed of the marine vessel and an azimuth of the marine vessel, and displaying a mark on a display based on the acquired speed and the acquired azimuth. The mark is displayed so as to allow the azimuth of the marine vessel to be determined in a case that the speed of the marine vessel exceeds a first predetermined speed, and the mark is displayed so as to not allow the azimuth of the marine vessel to be determined in a case that the speed of the marine vessel does not exceed the first predetermined speed.

Abstract: An information processing method includes displaying a water-based map on a display unit, accepting an operation by an administrator, storing a selected tile by the administrator in a storage unit as a particular tile from among a plurality of tiles resulting from division of an area on the water-based map into a mesh pattern, detecting a present location of a ship at a predetermined time interval, and notifying an alert when the ship enters a water area corresponding to the particular tile.

Abstract: A vessel operator warning support system includes a personal watercraft (PWC), an information terminal operable to acquire current position information on the PWC and to communicate with the PWC, and a controller configured or programmed to perform a predetermined control based on an engine speed. The information terminal is operable to acquire a navigation speed of the PWC based on the position information, a warning generator is configured or programmed to issue a predetermined warning when the navigation speed exceeds a speed limit in a speed restricted area in which the navigation speed is restricted, and the controller is configured or programmed to disable the warning such that the warning is not issued when the engine speed is equal to or lower than a threshold rotation speed even when the navigation speed exceeds the speed limit.

Abstract: A vessel operator warning support system includes a marine vessel including an engine, a controller, and a communicator, and an information terminal configured or programmed to communicate with the communicator and to define and function as a warning application to issue a predetermined warning based on location information of the marine vessel. The controller of the marine vessel is configured or programmed to perform a control to transmit, via the communicator to the information terminal, a start signal to start the warning application when the engine is started.

Abstract: A watercraft includes a hull, a wave detector to detect wave conditions on a water surface, a trim adjuster to adjust a trim angle of the watercraft, and a controller. The controller is configured or programmed to determine, based on a detection value of the wave detector, whether or not the water surface is smooth and, if it is determined that the water surface is not smooth, control the trim adjuster to increase the trim angle.

Abstract: A method and apparatus to reduce or prevent misrecognition of an actual azimuth of a marine vessel includes acquiring a speed of the marine vessel and an azimuth of the marine vessel, and displaying a mark on a display based on the acquired speed and the acquired azimuth. The mark is displayed so as to allow the azimuth of the marine vessel to be determined in a case that the speed of the marine vessel exceeds a first predetermined speed, and the mark is displayed so as to not allow the azimuth of the marine vessel to be determined in a case that the speed of the marine vessel does not exceed the first predetermined speed.

Abstract: An information processing apparatus and method to prevent a situation in which a warning cannot be issued when a marine vessel enters an out-of-service communication area includes a controller configured or programmed to acquire a position of the marine vessel, at least one of a speed or a traveling direction of the marine vessel, and communication area information. The controller is configured or programmed to determine whether the marine vessel has been close to the out-of-service communication area based on the position of the marine vessel and at least one of the speed or the traveling direction of the marine vessel, and download location information including call attention information used to issue a warning corresponding to the position of the marine vessel when the marine vessel is close to the out-of-service communication area.

Abstract: An information processing apparatus to perform registration work of an area associated with an attribute includes at least one processor configured or programmed to transmit a map including information on a boundary between a land area and a water area; acquire a designated boundary range among boundaries on the map, a designated distance, and a designated attribute; set an attribute target area based on the designated boundary range and the designated distance, and associate the designated attribute with the attribute target area; and update the map by including the attribute target area associated with the attribute in the map.

Abstract: A reverse bucket for a jet propulsion device includes a vertical ridge line that faces a discharge opening of a deflector to make a marine vessel move backward, a first inlet region and a second inlet region separated by the ridge line to receive water discharged from the discharge opening, first and second outlet regions to discharge the water received by the first and second inlet regions to the outside, and first and second guide regions to guide the water received by the first and second inlet regions to the first and second outlet regions. The first inlet region, the first guide region, and the first outlet region define a first recess portion including a first opening that faces the discharge opening. The second inlet region, the second guide region, and the second outlet region define a second recess portion including a second opening that faces the discharge opening.

Abstract: An information processing method includes displaying a water-based map on a display unit, accepting an operation by an administrator, storing a selected tile by the administrator in a storage unit as a particular tile from among a plurality of tiles resulting from division of an area on the water-based map into a mesh pattern, detecting a present location of a ship at a predetermined time interval, and notifying an alert when the ship enters a water area corresponding to the particular tile.

Abstract: A seat cushion includes an edge portion and a three-dimensional fiber structure including core-sheath fusible fibers and skeletal fibers thermally fused at intersections thereof. The sheaths of the core-sheath fusible fibers are made of a thermoplastic elastomer to fuse the intersections and form a bulging portion at each of the fused intersections. The skeletal fibers and the cores of the core-sheath fusible fibers are made of a non-elastomer resin. The skeletal fibers are crimp-processed bulky fibers, and a fineness of the skeletal fibers and a fineness of the core-sheath fusible fibers are in a range of 1 to 200 dtex. The seat cushion has a layered structure including a plurality of layers fused together, each of the layers has the three-dimensional fiber structure, and the seat cushion has a density distribution based on regional variations of the layered structure and a stiffness distribution that depends on the density distribution.

Abstract: Provided herein is an injectable hydrogel composition that forms a porous gel rapidly after injection. Methods of making and using the composition are provided. A kit also is provided comprising the ingredients for making the hydrogel.

Abstract: A seat cushion includes an edge portion and a three-dimensional fiber structure including core-sheath fusible fibers and skeletal fibers thermally fused at intersections thereof. The sheaths of the core-sheath fusible fibers are made of a thermoplastic elastomer to fuse the intersections and form a bulging portion at each of the fused intersections. The skeletal fibers and the cores of the core-sheath fusible fibers are made of a non-elastomer resin. The skeletal fibers are crimp-processed bulky fibers, and a fineness of the skeletal fibers and a fineness of the core-sheath fusible fibers are in a range of 1 to 200 dtex. The seat cushion has a layered structure including a plurality of layers fused together, each of the layers has the three-dimensional fiber structure, and the seat cushion has a density distribution based on regional variations of the layered structure and a stiffness distribution that depends on the density distribution.

Abstract: An injectable hydrogel composition that forms a porous gel rapidly after injection fro tissue engineering. The composition comprises a biodegradable, biocompatible, gelling polymer, that is optionally reverse-gelling; an Extra cellular matrix (ECM) material and a biocompatible porogen. Methods of making and using the composition are provided. A kit also is provided comprising the ingredients for making the hydrogel.

Abstract: A watercraft includes a hull, a wave detector to detect wave conditions on a water surface, a trim adjuster to adjust a trim angle of the watercraft, and a controller. The controller is configured or programmed to determine, based on a detection value of the wave detector, whether or not the water surface is smooth and, if it is determined that the water surface is not smooth, control the trim adjuster to increase the trim angle.

Abstract: An injectable hydrogel composition that forms a porous gel rapidly after injection fro tissue engineering. The composition comprises a biodegradable, biocompatible, gelling polymer, that is optionally reverse-gelling; an Extra cellular matrix (ECM) material and a biocompatible porogen. Methods of making and using the composition are provided. A kit also is provided comprising the ingredients for making the hydrogel.

Abstract: A watercraft is provided with a watercraft body and a storage container. The watercraft body includes a hull and a deck. The deck is provided on the hull. The storage container is attached to the watercraft body. The storage container includes an access opening and an annular sidewall. The access opening opens upward relative to the deck. The annular sidewall has an upper end, a lower end and an interior storage space between the upper end and the lower end. The lower end of the annular sidewall defines a bottom opening with a cross sectional area that is larger than a cross sectional area of the upper end of the annular sidewall.