Abstract: The present invention provides an aqueous solution evaporative treatment method that makes it possible to efficiently perform evaporative treatment of an aqueous solution containing calcium, magnesium, and silica. The aqueous solution evaporative treatment method comprises a seed crystal mixing step of adding to and mixing with an aqueous solution containing calcium, magnesium, and silica at least any one of magnesium salt and silicate together with calcium salt as seed crystals, and an evaporative concentration step of evaporatively concentrating the aqueous solution together with the seed crystals.

Abstract: The present invention provides an aqueous solution evaporative treatment method that makes it possible to efficiently perform evaporative treatment of a silica-containing aqueous solution. The aqueous solution evaporative treatment method comprises a seed crystal mixing step of adding to and mixing with a silica-containing aqueous solution a silicate as seed crystals and an evaporative concentration step of evaporatively concentrating the aqueous solution together with the seed crystals. The silicate is preferably magnesium silicate and/or calcium silicate.

Abstract: The present invention provides an aqueous solution evaporative treatment method that makes it possible to efficiently perform evaporative treatment of an aqueous solution containing calcium, magnesium, and silica. The aqueous solution evaporative treatment method comprises a seed crystal mixing step of adding to and mixing with an aqueous solution containing calcium, magnesium, and silica at least any one of magnesium salt and silicate together with calcium salt as seed crystals, and an evaporative concentration step of evaporatively concentrating the aqueous solution together with the seed crystals.

Abstract: A signal indicating an estimated body deceleration and a deceleration indicated by a detection signal from a G sensor are pass through first and second filters having different filter constants. Based on a resulting difference in response speeds thereof, it is determined whether sudden braking, i.e., quick depression, is being performed. If quick depression is determined, then even if an upper limit of a W/C pressure to rear wheels is set in order to prevent rear wheel locking precedent to front wheel locking, the W/C pressure is increased so as to exceed such an upper limit. Thus, a greater deceleration can be achieved than when the W/C pressure at the set upper limit is generated.

Abstract: The invention provides a hydrofluoric acid wastewater treatment method that achieves efficient recovery of hydrofluoric acid from hydrofluoric acid wastewater and also achieves sufficient reduction in the hydrofluoric acid concentration of the dehydrofluorinated water after treatment.

Abstract: A signal indicating an estimated body deceleration and a deceleration indicated by a detection signal from a G sensor are pass through first and second filters having different filter constants. Based on a resulting difference in response speeds thereof, it is determined whether sudden braking, i.e., quick depression, is being performed. If quick depression is determined, then even if an upper limit of a W/C pressure to rear wheels is set in order to prevent rear wheel locking precedent to front wheel locking, the W/C pressure is increased so as to exceed such an upper limit. Thus, a greater deceleration can be achieved than when the W/C pressure at the set upper limit is generated.

Abstract: A magnetic rotation detector includes a magnetic rotor having magnetic bodies, a detecting body that detects a change in magnetic flux that is caused by the magnetic bodies as the magnetic rotor rotates; and an abnormality determination portion that monitors an apparent fluctuation in rotational speed of the magnetic rotor based on a result detected by the detecting body and that determines that the magnetic rotor is in an abnormal state if the fluctuation occurs at a specific position of the magnetic rotor. The abnormality determination portion detects the occurrence of the fluctuation at the specific position of the magnetic rotor by making a determination on a distance between apparent positions of the magnetic bodies which correspond to the apparent fluctuation in rotational speed and calculates the distance on the basis of a product of an interval of generation of noise in an output signal detected by the detecting body and a rotational speed of the magnetic rotor at the time of generation of noise.

Abstract: As a magnetic rotor rotates, magnets disposed on an outer periphery of the magnetic rotor move, whereby a change in magnetic flux around a pick-up is caused. The pick-up then outputs a signal. If the signal output from the pick-up fluctuates due to a certain one of the magnets which is located at a specific position on the magnetic rotor, it is determined that the magnetic rotor is in an abnormal state such as adhesion of iron fragments to the magnets or the like.

Abstract: The invention provides a hydrofluoric acid wastewater treatment method that achieves efficient recovery of hydrofluoric acid from hydrofluoric acid wastewater and also achieves sufficient reduction in the hydrofluoric acid concentration of the dehydrofluorinated water after treatment.

Abstract: An antiskid control system executes a modified antiskid control which strengthens the tendency of the wheel to lock if a vehicle speed is under a predetermined speed and the vehicle is running on a road which has a low coefficient of friction. Antiskid control is also modified with respect to front wheels and is normal with respect to rear wheels in order to avoid an occurrence of vehicle spin. Further, antiskid control is modified with respect to either a front right wheel or a front left wheel. As a result, a stopping distance of the vehicle can be shortened while securing the steering stability of the vehicle.

Abstract: A method and apparatus for treating the distilled water obtained from an evaporation process sea water desalination plant is provided wherein carbon dioxide is extracted from sea water in the high temperature stages of the desalination plant and where the carbon dioxide thus extracted is dissolved into the water, along with calcium, thereby converting the distilled water into the quality suited for city tap water.