摘要:
The present invention relates to ethylene vinyl acetate based polymer foams with low density and superior injection molding characteristics, a preparation method thereof and a material for medical and health-care use using the same, more particularly to ethylene vinyl acetate based polymer foams with low density prepared by blending, masticating, pelletizing and foaming a matrix resin comprising ethylene vinyl acetate (EVA) resin and ethylene methyl acrylate (EMA) resin under specific condition, which has low density and superior injection molding characteristics and improved biocompatibility to human body, making them a useful environment-friendly material and particularly applicable to medical or health-care use, a preparation method thereof and a material for medical and health-care use using the same.
摘要:
Disclosed is a system for refining UMG Si including a vacuum chamber, a cold crucible disposed within the vacuum chamber, a device disposed within the vacuum chamber to supply Si to the cold crucible, a steam plasma torch disposed above the cold crucible to apply steam plasma formed by introducing a reactive gas into plasma flame by an inert gas to the Si supplied to the cold crucible, and an impurity collector disposed above the cold crucible within the vacuum chamber to collect impurity gas generated in the cold crucible and discharge the collected impurity gas to the outside of the vacuum chamber.
摘要:
A heat exchanger includes a refrigerant pipe in which a refrigerant flows and a heat exchanger fin coupled to the outer circumference of the refrigerant pipe. The heat exchanger fin includes a plate, a protrusion protruding from the plate, slits disposed at opposite sides of the protrusion to guide air to the protrusion, and a louver unit provided at the protrusion to perform heat exchange with the air having passed through the slits.
摘要:
Disclosed is a method of creating a pleasure image file comprising a plurality of images. The method comprises providing a plurality of still image files for use in creating a pleasure image file comprising a plurality of still images from the plurality of still image files and receiving an input indicative of a sequence for displaying the plurality of still images when playing the pleasure image file. Incorporating some effects for each still image in creating the image file comprises assigning a period during which each still image is to be displayed on a screen, adding a display special effect to be used while displaying the at least one still image, and creating the pleasure image file configured to display the plurality of still images on a screen in accordance with the sequence each for the assigned period, wherein the at least one still image is to be displayed with the display special effect.
摘要:
In order to produce metallurgical grade silicon and solar cell grade polysilicon in batches, a method of the present invention comprises: a step of reduction in an arc furnace, consisting of removing C and CO in a silicon reduction atmosphere using silica stone and carbon black by an arc so as to produce metallurgical grade silicon; a step of refining by slag consisting of removing phosphorus (P) and boron (B) by slag; a step of refining by unidirectional solidification consisting of removing metal impurities (Fe, Al, Ti, Mn, etc.) by means of unidirectional solidification; and a step of steam plasma-electromagnetism continuous refining consisting of charging a furnace with the unidirectionally solidified silicon and removing boron (B) by a steam plasma torch.
摘要:
In order to produce metallurgical grade silicon and solar cell grade polysilicon in batches, a method of the present invention comprises: a step of reduction in an arc furnace, consisting of removing C and CO in a silicon reduction atmosphere using silica stone and carbon black by an arc so as to produce metallurgical grade silicon; a step of refining by slag consisting of removing phosphorus (P) and boron (B) by slag; a step of refining by unidirectional solidification consisting of removing metal impurities (Fe, Al, Ti, Mn, etc.) by means of unidirectional solidification; and a step of steam plasma-electromagnetism continuous refining consisting of charging a furnace with the unidirectionally solidified silicon and removing boron (B) by a steam plasma torch.
摘要:
A heat exchange fin in a heat exchanger is disposed between two refrigerant pipes spaced apart from each other includes a guide protrusion including first inclined planes inclined upward along opposite sides of a center line of a refrigerant pipe row in a symmetric fashion and second inclined planes inclined downward from upper ends of the first inclined planes, and the first inclined planes and the second inclined planes are provided with louver members, thereby improving heat exchange efficiency.
摘要:
A heat exchange fin in a heat exchanger is disposed between two refrigerant pipes spaced apart from each other includes a guide protrusion including first inclined planes inclined upward along opposite sides of a center line of a refrigerant pipe row in a symmetric fashion and second inclined planes inclined downward from upper ends of the first inclined planes, and the first inclined planes and the second inclined planes are provided with rubber members, thereby improving heat exchange efficiency.
摘要:
Disclosed is a method of creating a pleasure image file comprising a plurality of images. The method comprises providing a plurality of still image files for use in creating a pleasure image file comprising a plurality of still images from the plurality of still image files and receiving an input indicative of a sequence for displaying the plurality of still images when playing the pleasure image file. Incorporating some effects for each still image in creating the image file comprises assigning a period during which each still image is to be displayed on a screen, adding a display special effect to be used while displaying the at least one still image, and creating the pleasure image file configured to display the plurality of still images on a screen in accordance with the sequence each for the assigned period, wherein the at least one still image is to be displayed with the display special effect.
摘要:
An apparatus for generating a sync of a digital television in which an analog signal inputted to a digital television constantly provides stabilized synchronization regardless of a standard or a nonstandard so as to be processed. The apparatus for generating a sync of a digital television in which an analog component data inputted from a component data (YcbCr) write controller is converted to a digital data and the converted digital data is stored in a frame buffer, includes: a vertical sync phase controlling unit for varying a clock frequency of a voltage control crystal oscillator according to a phase difference between an input vertical sync (Vsync_in) and a vertical sync (Vsync) generated in a final output terminal, to reduce the phase difference; a component data read controlling unit for dividing the clock frequency, outputting a read control signal to read the signal stored in the frame buffer in synchronization with the clock frequency, and outputting a horizontal and a vertical sync signals (Hsync)(Vsync); a frequency converter for converting the output frequency to form a display clock; a format converter for converting the digital signal as read from the frame buffer according to the horizontal and the vertical sync signal (Hsync)(Vsync) outputted from the component data read controlling unit to a display format and outputting the format-converted signal for display according to a display clock outputted from the frequency converter.