Abstract: A supported metallocene catalyst includes a carrier and a metallocene component. The carrier includes an inorganic oxide particle and an alkyl aluminoxane material. The inorganic oxide particle includes at least one inorganic oxide compound selected from the group consisting of an oxide of Group 3A and an oxide of Group 4A. The alkyl aluminoxane material includes an alkyl aluminoxane compound and an alkyl aluminum compound that is present in amount ranging from greater than 0.01 wt % to less than 14 wt % base on 100 wt % of the alkyl aluminoxane material. The metallocene component is supported on the carrier, and includes one of a metallocene compound containing a metal from Group 3B, a metallocene compound containing a metal from Group 4B, and a combination thereof. A method for preparing the supported metallocene catalyst and a method for preparing polyolefin using the supported metallocene catalyst are also disclosed.

Abstract: A method for establishing a connection between wireless communication devices suitable for sharing data between a sender and a receiver is provided. Both the sender and the receiver respectively have a built-in acceleration sensor to enable the sender and the receiver obtaining an internal tap-data and external tap-data. A first-connection is established between the sender and at least one receiver all around. The sender bumps the receiver both for sharing data. The sender receives the external tap-data from at least one receiver via the first-connection, the internal tap-data is compared with the external tap-data to filter out not-bumped receivers and then the bumped receiver is confirmed. Then, a second-connection is established between the bumped sender and receiver according to a security protocol so as to mutually share data through the second connection between the sender and the receiver.

Abstract: A set of electronic frames capable of detecting an external device includes a main frame and an external frame. The main frame includes an R-C circuit with a detecting pin, a resistor coupled to the detecting pin, and a voltage comparator for comparing the potential at the detecting pin and a reference potential. The external frame includes a connecting port coupled to the R-C circuit of the main frame. The connecting port includes an identifying pin coupled to the detecting pin, and an R-C circuit coupled to the identifying pin.

Abstract: A battery module of a mobile phone includes a camera module for capturing digital images, a memory for storing digital images captured with the camera module, a first interface for connecting to the mobile phone for transmitting captured digital images from the battery module to the mobile phone, a battery cell for supplying electrical power, and a plurality of battery contacts for contacting corresponding battery connectors of the mobile phone and for providing electrical power supplied by the battery cell to the mobile phone.