Abstract: A handover authentication method includes performing, by a wireless network server, a first authentication between a client and the wireless network server via a first network gateway; obtaining first authentication keys for the wireless network server and the client based on the first authentication; determining, by the wireless network server, a need to handover the client from the first network gateway to a second network gateway; deriving, by the wireless network server and from the first authentication keys, a handover authentication key shared by the client and the wireless network server; obtaining, by the wireless network server, second authentication keys for the network server and the client; and serving, by the wireless network server, the client via the second network gateway.

Abstract: Apparatus, method, and computer readable medium for generating and utilizing a feature code to monitor a program are provided. The program is run in a secure environment at the beginning. The program calls a function through an application program interface. A return address of the application program interface is used to generate the feature code. When the application runs again at another time, the feature code is utilized to monitor the program. According to the aforementioned arrangement and steps, the application program interface can be monitored dynamically. Consequently, any program can be monitored by this approach, which results in a more secure environment. Further, fewer application program interfaces are required to be monitored, so the required computer resource is less.

Abstract: A pavement element is revealed. The pavement element includes a thermally conductive covering element and a solar collector frame. The thermally conductive covering element is a foamed metal disposed with a plurality of through holes for providing slip resistance and drainage function. Moreover, the solar collector frame collects heat and then the heat is transferred to the thermally conductive covering element so as to cause high temperature for killing insect larvae or eggs attached to the thermally conductive covering element.

Abstract: A network reputation system and its controlling method are provided. A credentials and exchange component permits a user to generate credentials and exchange matching keys with those persons having a social relationship with the user. A reputation evaluation component enables other users to make evaluations about an estimatee via the sharing of social network information. A query and response component receives a query from a person having a social relationship with the user for requesting an evaluation about the estimatee, and responds an associated evaluation result to the person having a social relationship with the user, via the sharing of social network information and the evaluations made by the other users about the estimatee.

Abstract: An apparatus and method for renewing a key, a computer readable media thereof, and a wireless network comprising the same are provided. The method is adapted to the first base station. The first base station belongs to a wireless network. The first base station uses a first key and has a first coverage. The method comprises the following steps: determining that the mobile device moves from the first coverage to the second coverage of a second base station; determining that the login time of the mobile device is later than the renewing time of the first key; renewing the first key; and sending the first key to the mobile device.

Abstract: The present invention provides a surface treatment method for magnesium alloy, which comprising the following steps: 1) preparation; 2) fusion and uniformly coating; 3) heat diffusion, and 4) finish; so a coating alloy is placed on a magnesium alloy substrate, and the magnesium alloy substrate is heated so that the coating alloy is uniformly melted on the magnesium alloy substrate; when heating up to a preset temperature, the coating alloy generates heat diffusion on the magnesium alloy substrate; the coating alloy finally forms a corrosion-resistant hard layer on the magnesium alloy substrate. So, this invention features simple treatment process, stable structure and environmental-friendliness in a wide range of applications.

Abstract: A handover authentication method includes performing, by a wireless network server, a first authentication between a client and the wireless network server via a first network gateway; obtaining first authentication keys for the wireless network server and the client based on the first authentication; determining, by the wireless network server, a need to handover the client from the first network gateway to a second network gateway; deriving, by the wireless network server and from the first authentication keys, a handover authentication key shared by the client and the wireless network server; obtaining, by the wireless network server, second authentication keys for the network server and the client; and serving, by the wireless network server, the client via the second network gateway.

Abstract: A network apparatus having a database, a management method and a tangible machine-readable medium for managing internet protocol (IP) connection rules of the database are provided. The database stores at least one first IP connection rule. The management method comprises the following steps: writing a second IP connection rule through one of a plurality of management programs; determining there is a conflict between the at least one first IP connection rule and the second IP connection rule, and eliminating the conflict according to a weight value of the at least one first IP connection rule and a weight value of the second IP connection rule. The at least one first IP connection rule and the second IP connection rule are used in one network connection.

Abstract: The present invention relates to a wireless sensor message authentication method, which is characterized by an authentication scheme of any message authentication code applied to any secure message authentication code (MAC); an authentication scheme using the concept of error correcting code (ECC) and applied to any binary ECC to provide different feature; flexible technique tuning required throughput and faulty data detection capability by adjusting the ECC in use; end-to-end authentication; and XOR operation conducted to original MAC to secure light overhead.

Abstract: Apparatus, method, and computer readable medium for generating and utilizing a feature code to monitor a program are provided. The program is run in a secure environment at the beginning. The program calls a function through an application program interface. A return address of the application program interface is used to generate the feature code. When the application runs again at another time, the feature code is utilized to monitor the program. According to the aforementioned arrangement and steps, the application program interface can be monitored dynamically. Consequently, any program can be monitored by this approach, which results in a more secure environment. Further, fewer application program interfaces are required to be monitored, so the required computer resource is less.

Abstract: Methods are provided for determining and controlling polymer properties on-line in a polymerization reactor system, such as a fluidized bed reactor. The methods include obtaining a regression model for determining a polymer property, the regression model including principal component loadings and principal component scores, acquiring a Raman spectrum of a polyolefin sample comprising polyolefin, calculating a new principal component score from at least a portion of the Raman spectrum and the principal component loadings, and calculating the polymer property by applying the new principal component score to the regression model. The property can be controlled by adjusting at least one polymerization parameter based on the calculated polymer property.

Abstract: A heat sink and heat spreader bonding structure includes a metal heat sink, a metal heat spreader, and an eutectic structure formed between the heat sink and the heat spreader by heating the heat sink and the heat spreader to a specific temperature of the eutectic temperature of the heat sink and the heat spreader but below the respective melting point of the heat sink and the heat spreader to cause the internal metal atoms of the heat sink and heat spreader to be rearranged. This bonding structure maintains the heat transfer efficiency of the bonding layer between the heat sink and the heat spreader, eliminates formation of crevice, heat resistance, and oxidation in the bonding layer.