摘要:
The present invention relates to a method for recovering an organic-inorganic element-doped metal oxide from a hydrolysable metal compound, accompanied with contaminated water treatment. The present invention comprises steps of: a) adding a hydrolysable metal compound as a coagulant to a contaminated water to form a separable floc between the hydrolysable metal compound and contaminants present in contaminated water; b) separating the separable floc and the pre-treated water after flocculation treatment; and c) calcinating the separated floc over 500° C. to produce an organic-inorganic element-doped metal oxide. More preferably, the present invention further comprises subjecting the pre-treated water of the step b) to a microwave treatment to cause a photocatalytic degradation of an organic contaminant that remains in the pre-treated water, with the assistance of the remaining hydrolysable metal compound. A novel titanium compound is found as an alternative coagulant instead of iron and aluminum salts which most widely use in water treatment. Ability, capacity and efficiency of flocculation as the proposed titanium coagulant are similar to those of FeCl3 and alum coagulants in terms of removing organic matter. Titania produced by calcination of the separated floc after TiCl4 flocculation is mainly doped with C and P atoms.
摘要:
The present invention relates to a method for recovering an organic-inorganic element-doped metal oxide from a hydrolysable metal compound, accompanied with contaminated water treatment. The present invention comprises steps of: a) adding a hydrolysable metal compound as a coagulant to a contaminated water to form a separable floc between the hydrolysable metal compound and contaminants present in contaminated water; b) separating the separable floc and the pre-treated water after flocculation treatment; and c) calcinating the separated floc over 500° C. to produce an organic-inorganic element-doped metal oxide. More preferably, the present invention further comprises subjecting the pre-treated water of the step b) to a microwave treatment to cause a photocatalytic degradation of an organic contaminant that remains in the pre-treated water, with the assistance of the remaining hydrolysable metal compound. A novel titanium compound is found as an alternative coagulant instead of iron and aluminum salts which most widely use in water treatment. Ability, capacity and efficiency of flocculation as the proposed titanium coagulant are similar to those of FeCl3 and alum coagulants in terms of removing organic matter. Titania produced by calcination of the separated floc after TiCl4 flocculation is mainly doped with C and P atoms.
摘要:
A computer system with a main memory is equipped with an HDD that has a disk and a driving motor driving the disk, a non-volatile storage unit provided in the HDD storing therein a booting program of an operating system, and a control unit reading out the booting program stored in the non-volatile storage unit and loading the booting program onto the main memory before the driving motor reaches a normal speed as power is supplied to the computer system. With this configuration, there is provided a computer system capable of reducing the booting time of the HDD.
摘要:
A computer system with a main memory is equipped with an HDD that has a disk and a driving motor driving the disk, a non-volatile storage unit provided in the HDD storing therein a booting program of an operating system, and a control unit reading out the booting program stored in the non-volatile storage unit and loading the booting program onto the main memory before the driving motor reaches a normal speed as power is supplied to the computer system. With this configuration, there is provided a computer system capable of reducing the booting time of the HDD.
摘要:
A technique for discriminating a vehicle uses the pressures of tires of a vehicle passing on a pair of contact-point boards, which are converted into digital signals by using shift registers, and measures the width of the tires and the distance between tires, and counts the axles of the vehicle, according to the converted signals. The tire width of a vehicle, the distance between the left and right tires and the number of axles are processed in real time by outputting a digital signal from a contact-point in which a board portion makes contact with a tire of a passing vehicle. Furthermore, even if either one of the contact-point boards for discriminating a vehicle type breaks down, a vehicle can still be discriminated.
摘要:
A computer system including a clock module with predetermined set limits; a compensator; a booting setting part to store a user set time as a comparative set time in the compensator; wherein the booting setting part stores the user set time as a booting set time in the clock module in response to the user set time being within the set limits, and stores a time within the set limits as the booting set time in response to the user set time being beyond the set limits; and wherein the compensator allows the computer system to be booted at the booting set time in response to the booting set time being equal to the comparative set time, and compensates the booting set time so that it corresponds with the comparative set time in response to the booting start time being different from the comparative set time.
摘要:
A disk tray for a disk player including a tray main body installed on a disk player main body which carries a disk in and out of the disk player main body. The disk tray has a disk accommodating portion which is indented to accommodate a disk, and a protective layer formed on the surface of the disk accommodating portion facing an accommodated disk for protecting the disk placed on the disk accommodating portion.
摘要:
A method for performing a test and controlling the test mode of an electric device. The method reduces the amount of time and labor expended during fabrication, and accordingly enhances productivity by detecting time information from a timer (a clock generator, or a variable clock generator) and multiplying the detected time information by a predetermined value, and controlling the driving time of the device during a test operation in response to the multiplied time value.
摘要:
A computer system with a main memory is equipped with an HDD that has a disk and a driving motor driving the disk, a non-volatile storage unit provided in the HDD storing therein a booting program of an operating system, and a control unit reading out the booting program stored in the non-volatile storage unit and loading the booting program onto the main memory before the driving motor reaches a normal speed as power is supplied to the computer system. With this configuration, there is provided a computer system capable of reducing the booting time of the HDD.
摘要:
A computer system and control method thereof performing a power off mode if the computer system performs a predetermined power mode when the computer system is unstable. A power button activates a predetermined power mode; an operating system recognizes an input signal of the power button to generate a signal and determine whether to terminate an application currently being performed and whether to supply power to each of inner and outer devices of the system depending on the predetermined power mode. A system operation power mode detector detects an operational state of the system and a controller controls the operating system to generate a signal corresponding to a power-off mode to reboot the system if the system operation detector detects that the system is unstable when the power mode is not set to the power-off mode.