Abstract: A method of recycling a solar cell module includes an enclosing layer that encloses a solar cell therein, a light-receiving surface layer laminated on one surface of the enclosing layer, and a back sheet laminated on the other surface of the enclosing layer, the method including: a first removing step of mechanically removing the back sheet; a second removing step of mechanically removing from a side on which the back sheet is removed the entire solar cell and the enclosing layer to such a depth that a part of the enclosing layer having a predetermined thickness remains on the light-receiving surface layer, after the first removing step; and a third removing step of removing the part of the enclosing layer remaining on the light-receiving surface layer by immersion in a solution that causes swelling of the enclosing layer, after the second removing step, thereby improving an overall efficiency.

Abstract: A method of recycling a solar cell module includes an enclosing layer that encloses a solar cell therein, a light-receiving surface layer laminated on one surface of the enclosing layer, and a back sheet laminated on the other surface of the enclosing layer, the method including: a first removing step of mechanically removing the back sheet; a second removing step of mechanically removing from a side on which the back sheet is removed the entire solar cell and the enclosing layer to such a depth that a part of the enclosing layer having a predetermined thickness remains on the light-receiving surface layer, after the first removing step; and a third removing step of removing the part of the enclosing layer remaining on the light-receiving surface layer by immersion in a solution that causes swelling of the enclosing layer, after the second removing step, thereby improving an overall efficiency.

Abstract: According to one embodiment, a telephone exchange apparatus includes a determining module, a memory and a controller. The determining module determines whether an IP address is transferred through a router, by information notified from the plurality of telephone terminals, when a telephone terminal requests registration. The memory stores a management table associating the terminal ID, the results of determination by the determining module, and the IP address. The controller refers to the management table registered in the memory, and executes one of a first process of establishing connection for communication in a peer-to-peer form between first and second telephone terminals, and a second process of relaying connection by using a relay function, based on a reference results of the management table.

Abstract: According to one embodiment, a telephone exchange apparatus includes a determining module, a memory and a controller. The determining module determines whether an IP address is transferred through a router, by information notified from the plurality of telephone terminals, when a telephone terminal requests registration. The memory stores a management table associating the terminal ID, the results of determination by the determining module, and the IP address. The controller refers to the management table registered in the memory, and executes one of a first process of establishing connection for communication in a peer-to-peer form between first and second telephone terminals, and a second process of relaying connection by using a relay function, based on a reference results of the management table.

Abstract: According to one embodiment, a telephone exchange system includes a plurality of telephone terminals and a telephone exchange apparatus. The plurality of telephone terminals connected to a communication network. The telephone exchange apparatus registers the telephone terminals through the communication network, and execute multicast packet transmission of media signal including at least one of picture, voice, and data to the telephone terminals connected to the communication network. A first telephone terminal of the telephone terminals comprises a packet transfer configured to convert a received multicast packet into a unicast packet receivable by a second telephone terminal, and sends the converted unicast packet to the second telephone terminal.

Abstract: According to one embodiment, a telephone management system includes a telephone exchange apparatus, a management apparatus, and transmission paths which each connect between the telephone exchange apparatus and the management apparatus, the telephone exchange apparatus includes a memory which stores log files, a reader which reads log files to be stored in the memory of the corresponding line interface unit based on connection IDs included in an acquisition request, and a file transmitter which notifies the port IDs included in the acquisition request to the firewall/router, and transmits the log files to the management apparatus via the ports, the management apparatus includes a request transmitter which transmits the acquisition request to the telephone exchange apparatus in response to an instruction input, and a receiver which receives the log files transmitted from the telephone exchange apparatus via the transmission paths in response to the transmission of the acquisition request.

Abstract: According to one embodiment, a communication system includes a plurality of voice-mail apparatuses which record a voice message transmitted from a telephone terminal in an arbitrary mail box among a plurality of mail boxes, and reproduces the voice message recorded in the arbitrary mail box in response to a reproduction instruction, a plurality of memory apparatuses which include a plurality of mail boxes connected to the plurality of voice-mail apparatuses via a data transmission path and shared among the plurality of voice-mail apparatuses, convert the voice message incoming from the data transmission path into a file format possible to be processed by the plurality of voice-mail apparatuses to record it in the arbitrary mail box, and store control programs and control data, and a controller which selects at least one memory apparatus, and executes processing of the voice message for the selected memory apparatus based on prescribed conditions.

Abstract: According to one embodiment, a telephone exchange apparatus includes a first interface unit which houses a plurality of communication channels and at least one control channel and makes communication connections among a plurality of telephone terminals via the communication channels when incoming calls arrive via the control channel, and a second interface unit which is connected to the first interface and has the same function as that of the first interface, wherein the first interface includes a first controller which transfers the incoming calls to the second interface unit based on predetermined conditions when the incoming calls arrive, and the second interface includes a second controller which makes communication connections among the corresponding plurality of the telephone terminals by using free communication channels based on the incoming calls transferred from the first interface unit.

Abstract: A learning system including a server and a user terminal is provided for providing a lecture to a user and for evaluating the user. The present systems has the server and the user terminal, the server has a storage unit for storing at least one educational material and a transmitting unit for transmitting said educational material to the user terminal, the user terminal has a receiving unit for receiving said educational material from the server; display unit for presenting the received educational material to a user; a recognizing unit for recognizing movement of the user; and a transmitting unit for transmitting said recognized movement, wherein the server further has a receiving unit for receiving the movement from the user terminal; and an evaluating part for evaluating learning behavior of the user based on the movement.

Abstract: A system for producing an educational material for students. The system has a storing part for storing raw educational materials into a database, an input part for inputting both student-related data and educational environment-related data, and an educational material producing unit for selecting at least one raw educational material from said the database based on predetermined selecting criteria and the inputted student-related data and educational environment-related data to produce educational material from the selected at least one raw educational material.

Abstract: A distance education system for providing an educational service to a user via a network is provided, the system includes: education providing part for providing the educational service utilizing at least one educational material to the user via the network, wherein the educational material includes a plurality of elements; test transmission part for transmitting a test to the user by each predetermined stage and for prompting the user to send an answer to the test, wherein the test is associated with the educational material; evaluation part for receiving the answer from the user via the network to evaluate it; and evaluation transmission means for transmitting the evaluation result by the evaluation part to the user.

Abstract: A learning system including a server and a user terminal is provided for providing a lecture to a user and for evaluating the user. The present systems has the server and the user terminal, the server has a storage unit for storing at least one educational material and a transmitting unit for transmitting said educational material to the user terminal, the user terminal has a receiving unit for receiving said educational material from the server; display unit for presenting the received educational material to a user; a recognizing unit for recognizing movement of the user; and a transmitting unit for transmitting said recognized movement, wherein the server further has a receiving unit for receiving the movement from the user terminal; and an evaluating part for evaluating learning behavior of the user based on the movement.

Abstract: A system is provided for producing an educational material to students. The present systems has storing part for storing raw educational materials into a database, input part for inputting both student-related data and educational environment-related data and educational material producing unit for selecting at least one raw educational material from said database based on predetermined selecting criteria and said inputted both student-related data and educational environment-related data to produce an educational material from said selected at least one raw educational material.

Abstract: A system is provided for utilizing educational materials. The system has a registration part for prompting to input at least one code (such as a subject code for expressing a subject of an educational material) to store said educational material with said inputted code in an educational material database, a code receiving part for receiving code inputted by a developer or a user, and an educational material transmitting part for reading out an educational material corresponding to said received code from a database in accordance with the received code to transmit the educational material to the developer or the user.