摘要:
Disclosed are a method for providing a correction and teaching services over a network and a web server used in the method. The method of the present invention is implemented by the steps of: enabling a web server to receive information to be corrected including image information created by a student from a student terminal, storing the information to be corrected, transmitting the information to be corrected to a teacher terminal, receiving corrected information from the teacher terminal, and mapping the corrected information and the information to be corrected. According to the present invention, the cost of time required for correcting and teaching can be reduced, and the teacher can provide the student with both corrections on the student's answer sheet and with feedback in the teacher's voice.
摘要:
Disclosed herein is a natural gas liquefaction process using a single refrigeration cycle adopting a mixed refrigerant, and therefore having a simple structure and thus a compact system which is easy to operate, and further, after the mixed refrigerant is separated into two refrigerant parts, the two refrigerant parts are not mixed with each other but go through condensing (cooling), expanding, heat-exchanging, and compressing stages individually, and thus, optimal temperature and pressure conditions are applied to each of the separated refrigerant parts to increase efficiency of the liquefaction process.
摘要:
De-airing of PVB/glass laminates can be improved, while haze in the pre-press is minimized and sleep time reduced as a result using a PVB sheet having a roughened surface with directionality. A roughened surface with a washboard pattern that is useful in this regard can be obtained by varying certain conditions of a melt-fracture extrusion process.
摘要:
A wafer level fan out semiconductor device and a manufacturing method thereof are provided. A first sealing part is formed on lateral surfaces of a semiconductor die. A plurality of redistribution layers are formed on surfaces of the semiconductor die and the first sealing part, and solder balls are attached to the redistribution layers. The solder balls are arrayed on the semiconductor die and the first sealing part. In addition, a second sealing part is formed on the semiconductor die, the first sealing part and lower portions of the solder balls. The solder balls are exposed to the outside through the second sealing part. Since the first sealing part and the second sealing part are formed of materials having thermal expansion coefficients which are the same as or similar to each other, warpage occurring to the wafer level fan out semiconductor device can be suppressed.
摘要:
A method and apparatus are provided to manage contents in a network, and a web server used thereto. A memory is configured to store a code output with a printed matter and mapping information of contents, which are executed by a reader reading the code. A receiver is configured to receive a request from the reader to transmit the mapping information. A transmitter is configured to transmit the mapping information to the reader. When the code outputted to the printed matter is read, the contents executed in the reader are changed into various contents such that the changed contents are used. In addition, a product user and a product seller obtain the learning information of a learner through the reader, or product application information.
摘要:
De-airing of PVB/glass laminates can be improved, while haze in the pre-press is minimized and sleep time reduced as a result using a PVB sheet having a roughened surface with directionality. A roughened surface with a washboard pattern that is useful in this regard can be obtained by varying certain conditions of a melt-fracture extrusion process.
摘要:
A method of calling a method in a virtual machine environment is provided. The method includes reading a command of a first method; storing an address of the command code in predetermined memory space if the command is a command that calls a second method; changing an address of previously-compiled code of the second method and writing the address in the stored address; and directly branching to the address of newly-compiled code of the second method and calling the second method if the first method is performed.
摘要:
Disclosed herein is a natural gas liquefaction process using a single refrigeration cycle adopting a mixed refrigerant, and therefore having a simple structure and thus a compact system which is easy to operate, and further, after the mixed refrigerant is separated into two refrigerant parts, the two refrigerant parts are not mixed with each other but go through condensing (cooling), expanding, heat-exchanging, and compressing stages individually, and thus, optimal temperature and pressure conditions are applied to each of the separated refrigerant parts to increase efficiency of the liquefaction process.
摘要:
Disclosed herein is a natural gas liquefaction process of pre-cooling natural gas using a closed loop pre-cooling cycle and liquefying the pre-cooled natural gas using a closed loop liquefying cycle, wherein the closed loop pre-cooling cycle includes first and second pre-cooling cycles in parallel for pre-cooling supplied natural gases together in the same first heat exchange region through the respective pure refrigerants, and the closed loop liquefying cycle includes at least one liquefying cycle for liquefying the pre-cooled natural gas through a mixed refrigerant, the first and second pre-cooling cycles being a closed circuit cooling cycle.
摘要:
Provided is a method of executing an application. In the method, an application is received, whether the received application is one of the applications verified as being not altered is determined based on verification information identifying the applications verified as being not altered, and then, the received application is selectively executed according to the determination.