Abstract: The present invention provides a driving device and an electric motorcycle driving system using the driving device. Said driving device comprises a shaft, a pulley disk assembly configured on the shaft, and a motor. The motor is an outer rotor or inner rotor motor. One pulley disk of the pulley disk assembly is connected to one end of the outer rotor sleeve or the inner rotor of the motor, so it can be driven by the outer rotor sleeve or the inner rotor and rotate or move around the shaft; furthermore, an electric motorcycle driving system can use the driving device to connect with a battery and a stepless speed change mechanism, so as to use the electric power of the battery to operate the stepless speed change mechanism, and to consequently enhance the performance of speed and torque output of the electric motorcycles.

Abstract: A method for sharing data in a group using a computer server establishes sharing groups to share data queried by a communication device. A query is sent to the computer server using a Subscriber Identity Module Application Toolkit (STK) application in the communication device. The method receives a query from the communication device, acquires a query result, and transmits the query result to the communication device and group members in one or more selected sharing groups in response to receiving a group selection command from the communication device.

Abstract: A safety lamp, which comprises a lamp body and two electric connecting portions. The lamp body has a light emitting module. The two electric connecting portions are respectively disposed on two sides of the lamp body, and each of the electric connecting portions further comprises a first electric connecting terminal, a pressing switch unit, an elastic conductive unit and a second electric connecting terminal. Each of the pressing switch units must sustain a pressing force to urge against the corresponding elastic conductive unit to deform and to electrically connect the corresponding first electric connecting terminal to the corresponding second electric connecting terminal through the elastic conductive unit. Alternatively, when the pressing switch unit is released from the pressing force, the deformed elastic conductive unit reforms back to an opposite direction of the pressing force to form an open circuit.

Abstract: A low density high ductility alloy for making a golf club head is composed of 31 to 36 w. t. % of Manganese (Mn), 6 to 10 w. t. % of Aluminum (Al), 0.3 to 1 w. t. % of Carbon (C), 4 to 8 w. t. % of Chromium (Cr), 0.2 to 0.6 w. t. % of Silicon (Si), and other component is iron (Fe). The density of the alloy is 6.8˜7 g/cm3. The elongation of the alloy is from 33 to 55.4%. The tensile strength of the alloy is 61 to 67% f/mm2. The yield strength of the alloy is greater than 35 kgf/mm2.

Abstract: The invention discloses a heat dissipation assisting apparatus for lamp to form a flow channel space between the heat dissipation lamp holder and the shell. When the lamp is in operation, heat generated by the lamp is assimilated by the heat dissipation lamp holder, and gas in the flow channel space is heated by the heat assimilated to the heat dissipation lamp holder. Thus, the gas heated would flow in the flow channel space, and form convection with gas in the outside environment to dissipate heat outside, and heat insulation of the shell may prevent a user from being burned. The heat dissipation lamp holder and the shell can be detachable to allow convenient cleaning of dust in the space therebetween, thus preventing from deterioration of heat dissipation efficiency.

Abstract: An office furniture light structure includes a securing element adapted for mounting on a piece of office furniture in a suitable position, and a lighting device. The securing element is provided with at lest one outwardly extending movable element. The movable element has a distal end connected to the lighting device in a movable manner. In use, the lighting device can be moved to a suitable position by means of the movable element to sufficiently illuminate a place.