摘要:
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.
摘要:
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.
摘要:
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.
摘要:
The present disclosure relates to a verification method and system. The method comprises: applying an encryption algorithm to a secret information so as to generate at least two images; transmitting a first image of the at least two images to a first device; and aligning and overlaying a second image of the at least two images with the first image during the proceeding of a verification process for recovering and revealing the secret information.
摘要:
An active solder is revealed. The active solder includes an active material and a metal substrate. There are two kinds of active materials, titanium together with rare earth elements and magnesium. The metal substrate is composed of a main component and an additive. The main component is tin-zinc alloy and the additive is selected from bismuth, indium, silver, copper or their combinations. The active solder enables targets and backing plates to be joined with each other directly in the atmosphere. The target is ceramic or aluminum with low wetting properties. The bonding temperature of the active solder ranges from 150° C. to 200° C. so that the problem of thermal stress can be avoided.
摘要:
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.
摘要:
A network reputation system and its controlling method are provided. A credential and exchange component permits a user to generate credentials and exchange matching items 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 with 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.
摘要:
A layer-aware Forward Error Correction (FEC) encoding and decoding method for encoding and decoding an information content, an encoding apparatus, a decoding apparatus, and a system thereof are provided, wherein the information content has a plurality of layer source symbol sets. In the encoding method, source symbols of each layer are encoded into encoding symbols corresponding to the layer by using an FEC encoder. In addition, final encoding symbols of an upper layer are generated by aggregating encoding symbols of both the upper layer and a lower layer. Thereby, the layer-aware FEC encoding method can maintain the encoding/decoding dependency between different layers of data without increasing the complexity of the encoding/decoding operations.
摘要:
The present invention relates to a method for manufacturing a two-phase flow heat sink. The two-phase flow heat sink comprises an evaporation chamber and a capillary layer. The material of the capillary layer, which has at least a porous structure, is cooled and disposed on the inner side of the evaporation chamber from a melted state. The method first sprays the thermally melted material of the capillary layer on the substrate of the evaporation chamber for forming the capillary layer on the substrate. Because the capillary layer is sprayed on the substrate of the evaporation chamber, the capillary layer is distributed irregularly on the substrate and forming irregularly distributed holes. Thereby, the flowing space for fluids in the evaporation chamber is increased, and hence enhancing the heat transfer efficiency of the heat sink.
摘要:
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.