摘要:
The present invention relates to a car wing type rainwater shield device that is configured to have bat wing-like shields unfolded to the outsides of a car when it rains, while the shields are being controlled in such a manner as to be moved up and down according to the amount of rain. The car wing type rainwater shield device includes: shield bodies located on both top sides of a car; a rainwater sensor located on one side of the car to sense changes in an outside environment of the car; and a controller adapted to produce a driving signal for the shield bodies according to a signal inputted by a user's terminal or a signal value measured by the rainwater sensor and to control upward and downward movements of the shield bodies and a degree of unfolding of the shield bodies according to the signal value measured by the rainwater sensor in a state where the shield bodies are driven.
摘要:
Disclosed is a stapler including: a body including a fixed plate provided on a top portion of one end thereof and formed with a needle insertion hole, and a lower thread supplier provided below the fixed plate to feed a lower thread through the needle insertion hole; and a presser which is connected to the other end of the body at one end thereof by a rotating shaft, includes a fastening needle installed to the other end to stitch an object, and penetrates the needle insertion hole together with an upper thread, in which the object is stitched with the upper thread and the lower thread when pressure is applied to the presser. Since the sheets of paper are bound with the thread, it is possible to prevent the paper from being discolored or crumbed.
摘要:
A laser-based warning system for a vehicle, the system including: a laser device located on an inner face of a ceiling of a vehicle frame; and a controller configured to generate an emergency message and send the message to the laser device, wherein the laser device is configured to receive the emergency message and to shape a laser based on the message to irradiate the laser-based message onto a front, left, right, rear glasses of the vehicle selectively.
摘要:
Amorphous steel composites with enhanced mechanical properties and related methods for toughening amorphous steel alloys. The composites are formed from monolithic amorphous steel and hard ceramic particulates, which must be embedded in the glass matrix through melting at a temperature above the melting point for the steel but below the melting point for the ceramic. The ceramics may be carbides, nitrides, borides, iron-refractory carbides, or iron-refractory borides. An optical micrograph of such a composite including niobium carbide particulates is shown in FIG. 2A. The produced composites may be one of two types, primarily distinguished by the methods for embedding the ceramic particulates in the steel. These methods may be applied to a variety of amorphous steels as well as other non-ferrous amorphous metals, and the resulting composites can be used in various applications and utilizations.
摘要:
There are provided an apparatus and a method for controlling the power quality of a power generation system. According to the present invention, there is provided an apparatus for controlling the power quality of a power generation system including a DC/AC inverter converting DC voltage into AC voltage and supplying inverter current to a grid, including: a grid voltage phase follower generating a grid signal; a fundamental extractor extracting a magnitude of a fundamental wave of a load current introduced into a non-linear load connected between the DC/AC inverter and the grid; a first calculator subtracting a preset current compensation value from the magnitude of the fundamental wave from the fundamental extractor; and a second calculator generating an inverter current instruction value for the DC/AC inverter by using the output value of the first calculator and the grid signal and the load current from the grid voltage phase follower.
摘要:
A laptop computer includes a main body, a display, a component, and a frame. The main body includes a front end, a back end opposite to the front end, a left side surface and a right side surface connected between the front end and the back end, and a socket positioned at the back end. The display is pivoted to the front end of the main body. The component is detachably inserted into the socket. The frame is movably connected to the left side surface and the right side surface. The frame is able to rotate between a locked position and an unlocked position, when the frame is at the locked position, the frame keeps the component in the socket, and when the frame is at the unlocked position, the component is able to be pulled out from the socket.
摘要:
A portable computer includes a main body, a display, and a wireless keyboard. The main body includes a keyboard supporting panel. The display is hinged to the main body. The wireless keyboard detachably attached on the keyboard supporting panel. The wireless keyboard is mechanically coupled to the main body and wirelessly communicatively coupled to the main body.
摘要:
There are provided an apparatus and a method for controlling the power quality of a power generation system. According to the present invention, there is provided an apparatus for controlling the power quality of a power generation system including a DC/AC inverter converting DC voltage into AC voltage and supplying inverter current to a grid, including: a grid voltage phase follower generating a grid signal; a fundamental extractor extracting a magnitude of a fundamental wave of a load current introduced into a non-linear load connected between the DC/AC inverter and the grid; a first calculator subtracting a preset current compensation value from the magnitude of the fundamental wave from the fundamental extractor; and a second calculator generating an inverter current instruction value for the DC/AC inverter by using the output value of the first calculator and the grid signal and the load current from the grid voltage phase follower.
摘要:
The present invention is to provide a method and circuit for producing spread spectrum and over clock, which includes a primary circuit and a secondary circuit, wherein the primary circuit uses a frequency division technique based on phase swallow to achieve a high frequency resolution clock signal, and the secondary circuit multiplies the frequency of the output clock signal of the primary circuit, so as to expand its frequency range.
摘要:
A laser-based warning system for a vehicle, the system including: a laser device located on an inner face of a ceiling of a vehicle frame; and a controller configured to generate an emergency message and send the message to the laser device, wherein the laser device is configured to receive the emergency message and to shape a laser based on the message to irradiate the laser-based message onto a front, left, right, rear glasses of the vehicle selectively.