摘要:
A multi display device includes panel housings having displays. The panel housings are foldable on each other and the displays are disposed adjacent to each other when the panel housings are unfolded. A key input part is further provided to be foldable on the panel housings. Accordingly, the multi display device is easy to grasp for the user while providing the folding/folding convenience.
摘要:
A method of using two display panels as a single screen is provided. More particularly, a structure for minimizing the size of a joint between two display panels and an algorithm for coping with a situation where a text line or a text image is located at the joint are provided. A portable display device has at least two panel housings and first and second display panels mounted on the panel housings, respectively, in which the display panels are joined to each other to form a single screen when the panel housings are unfolded. When a text line or a text image is located at the joint between the first and second display panels, a screen is shifted so that the joint is located in a space between the text lines.
摘要:
The present invention provides a method of producing D-type lactide from liquid D-type lactic acid, and a method for producing D-type polylactic acid having a weight average molecular weight of about 50,000˜20,000 g/mol from the produced D-type lactide. The method of the present invention is advantageous in that D-type lactide can be obtained at a high yield by a simple method, compared to the conventional production methods. Consequently, production cost of D-type polylactic acid that is finally obtained from D-type lactide can be reduced.
摘要:
Disclosed is an air-fuel ratio control boiler using a air pressure sensor and method for controlling the air-fuel ratio thereof. The boiler is comprised of a fan, the air pressure sensor, a air pressure sensor voltage measurement unit, a air pressure sensor voltage compensation unit, and a controller, and previously compensates for noise factors caused by deviation (error) of a component property, a constituent, of the air pressure sensor so as to be matched to initial reference voltage prior to operating the fan, thereby maximizing the effectiveness of the air-fuel ratio. Further, the boiler makes it possible not only to exert an optimal fuel efficiency effect due to the maximization of combustion efficiency, but also to minimize discharge of harmful gases, thereby preventing environmental pollution in advance, and thus improving the reliability of products.
摘要:
To program a semiconductor memory device, a plurality of target threshold voltage groups are set by dividing target threshold voltages representing states of memory cells. The target threshold voltage groups are substantially simultaneously programmed by applying a plurality of program voltages to a word line. Program end times for the target threshold voltage groups are adjusted.
摘要:
A method for controlling a heating system for organically controlling heating of respective rooms to uniformly heat the respective rooms by proportionally calculating heat supplies required by the respective rooms from temperature of returned water, even when the heat supplies required by the respective rooms are different from each other, depending on external conditions of the respective rooms. The method adjusts flow rates of heating water supplied to the respective rooms by adjusting opening rates of room valves installed in heating water pipes. The temperature of the returned heating water is measured, a ratio of opening rates of the respective room valves is calculated from the measured temperature of the returned water to proportionally supply heat to the respective rooms, and the opening rates of the respective room valves are adjusted, depending on the calculated ratio of the opening rates.
摘要:
An object of the present invention is to provide a method of controlling a heating apparatus that is capable of automatically controlling a heating-off temperature and a heating-on temperature according to an operation environment such that upper and lower variations of a room temperature set by a user are reduced on the basis of the room temperature, thereby allowing the user to feel comfortable. In order to achieve the object of the present invention, there is provided a method of controlling a heating apparatus that controls the start/stop operation of the heating apparatus on the basis of a room temperature set by a user. In this case, a temperature when the heating apparatus is operated to increase the room temperature and the operation of the heating apparatus is stopped is set as a temperature that is obtained by subtracting a heating-off temperature at a cycle immediately before a current cycle by a compensation value determined according to overshoot that has occurred at the cycle immediately before the current cycle, and a temperature when the operation of the heating apparatus is stopped to decrease the room temperature and the heating apparatus is operated is set as a temperature that is obtained by adding the heating-on temperature at the cycle immediately before the current cycle and a compensation value determined according to undershoot that has occurred at the cycle immediately before the current cycle, such that a difference between the measured room temperature and the room temperature set by the user is minimized.
摘要:
An apparatus and method for reading a user's palm using a mobile terminal by extracting a life line, a heart line and a head line from the user's palm. The apparatus and method comprise photographing the user's palm when the mobile terminal is in a palm photograph mode and converting the photographed palm image to a grayscale image. The apparatus and method further comprise detecting edges in the palm image, extracting a value of each line of the palm, obtaining a length and a slope of each line of the palm based on the extracted value, and outputting results of the palm reading based on the length and slope of each line of the palm.
摘要:
A flat panel display device includes at least one display panel. The display panel includes a first substrate and a second substrate facing each other, and a sealant sealing the first substrate and the second substrate, wherein at least one of the first substrate and the second substrate has at least one protrusion portion formed on a portion of an inner surface thereof to adhere to the sealant.
摘要:
A method for gas supply pressure control is disclosed. Gas is supplied to a gas burner at a gas supply pressure which is higher than an ignition pressure, and after the ignition of the gas burner, the gas supply pressure increases during a predetermined time until fluid to be heated reaches a target temperature. The increase of the gas supply pressure is performed gradually according to a predetermined number of pressure levels set between the ignition pressure and maximum gas supply pressure of the gas boiler. If the fluid reaches the target temperature, the gas is supplied according to a corresponding to the target pressure temperature. Since the time that the gas is supplied at the maximum gas supply pressure is reduced during the time of initial operation of the gas boiler and during the operation of the gas boiler, the noise resulting from combustion is reduced.