Abstract: Method for performing an unscheduled uplink transmission by a user equipment UE, in an unlicensed portion of a radio spectrum, the method comprising: performing, by the UE, a listen before talk, LBT, operation in the unlicensed portion of the radio spectrum, wherein the LBT operation includes sensing the portion of the radio spectrum for a pre-determined minimum amount of time for traffic; and performing, if no traffic was sensed, the unscheduled uplink transmission, by the UE, of data in an unscheduled mode of operation for at least one transmission burst.

Abstract: A vehicle warning device is provided, which includes a detecting device, a processor and a plurality of spray devices. The detecting device detects an object near a vehicle and judging whether the object is a human body, if it is, the detecting device further detects the relative location between the human body and the vehicle and the distance between the human body and the vehicle. The processor further judges whether the relative location and the distance between the human body and the vehicle obstructs the passage that the vehicle can drive away, if it is, the processor transmits a start instruction to one of the spray devices corresponding to the human body to spray the stinky gas toward the human body to remind the human body to leave away from the periphery of the vehicle.

Abstract: A golf club head formed by a combined "superplastic forming and diffusion bonding" method. The basic procedures are using three titanium sheets and machining shallow cavities into one of the sheets, which later provides the reinforcing function. Applying stop-off to the area where diffusion bonding is not desired and then sealing the three sheets by welding along their peripheries together with two gas supply tubes. The assembly then is placed into a die and a gas supply is attached. After vacuuming and heating up, the assembled part is subjected to subsequent diffusion bonding and superplastic inflation processes which yield a titanium golf club head with an internally strengthened striking face.

Abstract: A new structure for a golf club head which is lighter yet with lower impact loss and featuring internal reinforcements is designed according to research results from impact mechanics. The impact capability of the golf club head can be improved by placing the reinforcement structures close to the striking face and its adjacent support. The design of the golf club head keeps the same weight as the current standard stainless steel head while lowering kinetic energy loss during the impact or reduces the weight of the club head while maintaining the same energy loss. This golf club head is formed by a combined "superplastic forming and diffusion bonding" method for fabricating a titanium alloy golf club head.

Abstract: A method is provided for making a four-piece hollow airfoil. Four metal sheets are preformed into initial shapes. The sheets are sealed together into two pairs or sub-assemblies. Internal cavities are formed in one sheet from each pair prior to sealing. Each sub-assembly is subjected to high temperature and pressure in order to diffusion bond the sheets together at selected points. The cavities of each sub-assembly are then subjected to internal pressure in order to inflate and superplastically deform the sub-assemblies. The inflated sub-assemblies are combined to form a single assembly and the cavities are again subjected to internal pressure in order to bond the sub-assemblies together. The assembly is then exposed to hot isostatic pressing, after which, excess material is machined off.

Abstract: A method for making a three-piece hollow airfoil includes preforming three metal sheets into initial shapes and sealing them together to form an in-process assembly. Internal cavities are formed in the assembly prior to sealing. The assembly is subjected to high temperature and pressure to diffusion bond the sheets together at selected points. The cavities are then subjected to internal pressure at high temperature in order to inflate and superplastically deform the assembly to the desired shape. Excess material may be machined off after inflation.