Abstract: A computer system includes an openflow switch, configured to receive a plurality of packets; a network controller, coupled to the openflow switch and configured to determine a route of each of the plurality of packets; and a detecting and defending system, configured to perform transformation of information formats of the plurality of packets, retrieve and label the plurality of packets to determine whether the plurality of packets are abnormal or not and generate a defending determination.

Abstract: A computer system includes an openflow switch, configured to receive a plurality of packets; a network controller, coupled to the openflow switch and configured to determine a route of each of the plurality of packets; and a detecting and defending system, configured to perform transformation of information formats of the plurality of packets, retrieve and label the plurality of packets to determine whether the plurality of packets are abnormal or not and generate a defending determination.

Abstract: A method for filtering web page content is disclosed in this invention. In the method, a web page request to obtain a web page from a web server is received from a client through a network equipment after the client builds a connection with the web server. The network equipment transmits the web page request to a cloud server for determining if the web page needs to be blocked according to the web page request. A first disconnection request and a second disconnection request is generated according to the web page request if it is determined that the web page needs to be blocked. The first disconnection request is transmitted to the client and the second disconnection request is transmitted to the web server through the network equipment. Subsequently, the connection between the client and the web server is disconnected.

Abstract: A real-time, localized and mobile matching method for proxy purchase includes the following steps: position information of several default purchasing agents is received. At least one purchase request is received from at least one client. The purchase request includes information of at least one product to be purchased and location of at least one vendor of the product to be purchased. Candidate purchasing agents, position information of which corresponds to the location of the vendor of the product to be purchased, are filtered from the default purchasing agents. The information of the candidate purchasing agents is transmitted to the client, such that a selection signal, which includes information of a selected purchasing agent selected from the candidate purchasing agents, is received from the client. The purchase request is transmitted to the selected purchasing agent through a wireless communication network.

Abstract: An electronic device includes a housing, and an active fan and an airflow reversal prevention assembly installed in the housing. The assembly includes a first grid plate defining a plurality of vents, a second grid plate abutting against the first grid plate, a passive fan, and an elastic member. The second grid plate defines a plurality of vents being selectively aligned with the vents of the first grid plate. The passive fan is driven by air from the active fan to rotate, thereby driving the second grid plate to slide relative to the first grid plate. Thus the vents of the second grid plate are aligned with the corresponding vents of the first grid plate. The elastic member is capable of urging the second grid plate to slide to return, whereby the vents of the second grid plate are out of alignment with the vents of the first grid plate.

Abstract: A piezoelectric fan assembly includes a case defining an air outlet, a fan arranged in the case, and a guide plate mounted in the case and encircling the fan. The fan includes a mandrel positioned in the case, two swing members mounted to the mandrel and each including a piezoelectric element, a circular connecting portion connected to the at least one swing member, and a number of fan blades mounted to the connecting portion to generate airflow by the swing members in response to the piezoelectric element receiving alternating current power. A wind channel is formed between the case and the guide plate. A number of openings are defined in the guide plate corresponding to the fan blades. The guide plate is to transfer airflow from the number of fan blades to the air outlet via the wind channel, through the number of openings.

Abstract: A guide toy vehicle is used for obtaining related knowledge of exhibit in a pleasant and interactive way. Guidance materials are transferred between different guidance systems through a wireless network. Thus, a user can have a wide, easy and effective learning.

Abstract: An apparatus uses a guide toy vehicle and has a smart floor environment. The smart floor environment is filled with location tags. Data can be found in a back-end database for location tags of an exhibit unit through a wireless network. The data comprise multimedia information to improve learning. Thus, with the present invention students can have better learning for achieving a default teaching goal.

Abstract: A real-time, localized and mobile matching method for proxy purchase includes the following steps: position information of several default purchasing agents is received. At least one purchase request is received from at least one client. The purchase request includes information of at least one product to be purchased and location of at least one vendor of the product to be purchased. Candidate purchasing agents, position information of which corresponds to the location of the vendor of the product to be purchased, are filtered from the default purchasing agents. The information of the candidate purchasing agents is transmitted to the client, such that a selection signal, which includes information of a selected purchasing agent selected from the candidate purchasing agents, is received from the client. The purchase request is transmitted to the selected purchasing agent through a wireless communication network.

Abstract: A real-time and localized matching method for group purchase includes the following steps: a group purchase database, which stores information of several present group purchase activities, is provided. A present position of a client is received. Nearby group purchase activities held near the client are sifted from the present group purchase activities and provided to the client. A selection message, which includes information of a group purchase activity selected from the nearby group purchase, is received from the client. The client's shopping list for the selected group purchase activity is obtained from the client to register the client's shopping list to the shopping list of the selected group purchase activity in the group purchase database. The contact information of the selected group purchase activity is transmitted to the client if the registered shopping list of the selected group purchase activity satisfies the discount condition of the selected group purchase activity.

Abstract: A heat dissipating device is provided for a memory card which facing airflow blown rearward. The heat dissipating device includes a first heat spreader to be mounted to a front end of the memory card, and a second heat spreader to be mounted to a rear end of the memory card. The heat dissipating device will enhance the heat dissipating efficiency around the memory card.

Abstract: A piezoelectric fan assembly includes a case defining an air outlet, a fan arranged in the case, and a guide plate mounted in the case and encircling the fan. The fan includes a mandrel positioned in the case, two swing members mounted to the mandrel and each including a piezoelectric element, a circular connecting portion connected to the at least one swing member, and a number of fan blades mounted to the connecting portion to generate airflow by the swing members in response to the piezoelectric element receiving alternating current power. A wind channel is formed between the case and the guide plate. A number of openings are defined in the guide plate corresponding to the fan blades. The guide plate is to transfer airflow from the number of fan blades to the air outlet via the wind channel, through the number of openings.

Abstract: An electronic device includes a housing, an active fan installed in the housing, and an airflow reversal prevention assembly. The assembly includes a fixed rack secured to the housing opposite to the active fan, a movable rack, a passive fan, a curtain shelter, a shaft, and a resilient member. The curtain shelter is attached between the fixed rack and the movable rack. The shaft is fixedly passed through the movable rack and the passive fan to be rotatably secured to the fixed rack. The passive fan is driven by air from the active fan to rotate, thereby driving the movable rack to rotate relative to the fixed rack by the shaft to allow the curtain shelter being folded up. The resilient member can urge the movable rack to rotate back to allow the curtain shelter being spread open.

Abstract: A mobile advertising device includes an e-paper, a display control unit, a wireless communication unit and a processing unit. The display control unit controls the e-paper. The positioning unit receives a positioning signal and calculates the present location of the mobile advertising device according to the positioning signal. The wireless communication unit builds a connection with a server through wireless communication and transmits the present location of the mobile advertising device to the server. The processing unit includes an advertising module to obtain at least one advertisement of at least one store corresponding to the present location of the mobile advertising device from the server through the wireless communication unit. Then, the advertising module displays the advertisement of the store on the e-paper through the display control unit.

Abstract: An electronic device includes a housing, an active fan installed in the housing, and an airflow reversal prevention assembly. The assembly includes a fixed rack secured to the housing opposite to the active fan, a movable rack, a passive fan, a curtain shelter, a shaft, and a resilient member. The curtain shelter is attached between the fixed rack and the movable rack. The shaft is fixedly passed through the movable rack and the passive fan to be rotatably secured to the fixed rack. The passive fan is driven by air from the active fan to rotate, thereby driving the movable rack to rotate relative to the fixed rack by the shaft to allow the curtain shelter being folded up. The resilient member can urge the movable rack to rotate back to allow the curtain shelter being spread open.

Abstract: A network service control method detects whether a mobile node communicating with a corresponding node is trending to a second local area network from a first local area network and forks and transmits a user agent and a server agent to a proxy when the mobile node is trending to the second local area network. After that, the user agent registers onto the proxy according to a result obtained by the handshaking. Finally, when the mobile node moves into the second local area network, the mobile node communicates with the user agent for obtaining a connection tunnel reserved by the user agent to communicate with the corresponding node.

Abstract: A projector includes a display screen, an imaging system adapted to provide an optical image, a reflector arranged on a transmission path of the optical image, and an optical transmission medium disposed inside the refraction space. The refraction space is formed between the reflector and the display screen. The optical image travels through the optical transmission medium by the reflection of the reflector and is transmitted to the display screen. A refractive index of the optical transmission medium is not equal to one.

Abstract: An electronic device includes a housing, and an active fan and an airflow reversal prevention assembly installed in the housing. The assembly includes a first grid plate defining a plurality of vents, a second grid plate abutting against the first grid plate, a passive fan, and an elastic member. The second grid plate defines a plurality of vents being selectively aligned with the vents of the first grid plate. The passive fan is driven by air from the active fan to rotate, thereby driving the second grid plate to slide relative to the first grid plate. Thus the vents of the second grid plate are aligned with the corresponding vents of the first grid plate. The elastic member is capable of urging the second grid plate to slide to return, whereby the vents of the second grid plate are out of alignment with the vents of the first grid plate.

Abstract: A projector including a display screen and an imaging system is provided. The imaging system is adapted for providing an optical image and the optical image is transmitted to the display screen through an optical transmission medium. The refractive index of the optical transmission medium is not equal to one. The transmission path of the optical image is changed by controlling the refraction index of the optical transmission medium in order to thin the projector.

Abstract: An electronic system includes a case, a plurality of fans, a plurality of shafts, at least one leaf member, and a plurality of elastic elements. The case defines a plurality of exits. The fans are fixed in the case corresponding to the exits. The shafts are fixed in the case corresponding to the fans. The at least one leaf member is rotationally mounted to one of the shafts. The elastic elements are mounted to one of the shafts to bias the at least one leaf member to close the corresponding exit. A guide apparatus for the electronic system is provided as well.