Abstract: A wireless communication circuit and an electronic device are provided. The wireless communication circuit used for an electronic device includes a wireless transceiver unit used to generate a transmitting signal, an impedance matching unit electronically coupled to the wireless transceiver unit, a coupling unit and a system grounding surface. The impedance matching unit includes at least one impedance, the impedance matching unit is used to convert the transmitting signal to a feeding signal according to the impedance value of at least one impedance. The coupling unit is electronically coupled to the impedance matching unit, to radiate the energy of the feeding signal. The system grounding surface is used to transmit a first electromagnetic wave signal via resonance on the plane of the system grounding surface after receiving the energy of the feeding signal.

Abstract: An object of the present invention is to provide a method for hydrogenating a biodiesel fuel for producing a biodiesel fuel having an excellent oxidation stability and cold flow property. The present invention serves to produce a biodiesel fuel excellent in oxidation stability, by hydrogenating a biodiesel fuel with oxygen present in the reaction system in the presence of a catalyst containing at least one type of noble metal selected from metals of Groups 8 to 10 in the periodic table.

Abstract: An object of the present invention is to provide a method for hydrogenating a biodiesel fuel for producing a biodiesel fuel having an excellent oxidation stability and cold flow property. The present invention serves to produce a biodiesel fuel excellent in oxidation stability, by hydrogenating a biodiesel fuel with oxygen present in the reaction system in the presence of a catalyst containing at least one type of noble metal selected from metals of Groups 8 to 10 in the periodic table.

Abstract: To provide a catalyst for production of a biodiesel fuel, which is capable of producing a biodiesel fuel with high selectivity, at a high yield, and at a low cost even in the presence of a water content and a free fatty acid, and a biodiesel fuel production method using the catalyst. Use of a titanium-containing mesoporous silica containing Ti and Si as skeleton constituent elements and having a pore diameter of 5 nm or greater as a transesterification catalyst enables a biodiesel fuel to be produced with high selectivity at a high yield through transesterification between an oil and an alcohol.

Abstract: [Problem] To provide a catalyst for production of a biodiesel fuel, which is capable of producing a biodiesel fuel with high selectivity, at a high yield, and at a low cost even in the presence of a water content and a free fatty acid, and a biodiesel fuel production method using the catalyst. [Solution] Use of a titanium-containing mesoporous silica containing Ti and Si as skeleton constituent elements and having a pore diameter of 5 nm or greater as a transesterification catalyst enables a biodiesel fuel to be produced with high selectivity at a high yield through transesterification between an oil and an alcohol.

Abstract: A semiconductor package and a manufacturing method thereof are provided. The semiconductor package includes a substrate, a semiconductor chip, a package body and an antenna layer. The semiconductor chip is disposed on the substrate. The package body encapsulates the semiconductor chip and includes an upper surface. The antenna layer is formed on the upper surface of the package body and includes two antenna slot groups connected together. Each antenna slot group includes a wave guiding slot extending along a first direction, and an irradiation slot group extending along a second direction, wherein the irradiation slot group is connected to the wave guiding slot.

Abstract: A semiconductor package and a manufacturing method thereof are provided. The semiconductor package includes a substrate, a semiconductor chip, a package body and an antenna layer. The semiconductor chip is disposed on the substrate. The package body encapsulates the semiconductor chip and includes an upper surface. The antenna layer is formed on the upper surface of the package body and includes two antenna slot groups connected together. Each antenna slot group includes a wave guiding slot extending along a first direction, and an irradiation slot group extending along a second direction, wherein the irradiation slot group is connected to the wave guiding slot.

Abstract: A semiconductor package comprises a substrate, a grounding layer, a encapsulant, a shielding layer, and a conductive element. The substrate includes a chip. The encapsulant encapsulates the grounding layer and the chip, wherein the encapsulant has an upper surface. The shielding layer is formed on the upper surface of the encapsulant. The conductive element surrounds a waveguide cavity and extends to the grounding layer. The grounding layer, the shielding layer and the conductive element together form a waveguide antenna.

Abstract: A facile synthesis route for preparing SBA-15 silica of platelet shape and very short mesochannels was developed by introducing a small amount of Zr(IV) ions in the first synthesis solution. The synthesis route can be easily extended to prepare SBA-15 materials with various organic functional groups in one pot.

Abstract: A facile synthesis route for preparing SBA-15 silica of platelet shape and very short mesochannels was developed by introducing a small amount of Zr(IV) ions in the first synthesis solution. The synthesis route can be easily extended to prepare SBA-15 materials with various organic functional groups in one pot.

Abstract: The present invention provides a composite structure for display device, which includes a display device able to display exercise information and audiovisual entertainment, and the display unit is connected to an exercise equipment by means of a connecting port. Moreover, the display device comprises a control unit, a processor unit and an application interface. The control unit is responsible for adjustment of brightness, contrast, and vertical and horizontal positioning, and the processor unit is responsible for exercise information and adjustment control of audiovisual entertainment. Furthermore, the application interface is connected to the processor unit by means of the connecting port. Hence, the display device including the control unit, the processor unit and the application interface enables an exerciser to achieve the objective of working out to keep fit and enjoying entertainment when exercising on the exercise equipment.

Abstract: In a mechanism for feeding a film, used in a camera, etc., in which a film having one perforation formed at a specified position relative to each frame or a film having a plurality of perforations formed at specified positions relative to each frame with unequal intervals therebetween as a whole is used, a sprocket 13 is employed for controlling to forward the film frame by frame. The sprocket is locked by a lever before an initial forwarding of thefilm is carried out, and it is unlocked from the lever when the film is forwarded to move the lever, so that the relationship of engagement between a tooth of the sprocket and the perforations of the film is ensured to be constant and synchronous during the initial feeding of the film.

Abstract: A perforation detection device of a contact piece type to be built into a camera. A detection section of a first contact piece arranged on the rear surface side of a path in which the perforations of a film advance in a film feeding stage is constructed of a metal ball which is a separate member from that of the first contact piece. This metal ball comes in pressure contact with a second contact piece arranged on the front surface side of the film as the perforations pass. When the metal ball faces a perforation of the film, this metal ball comes in contact with both the first and the second contact pieces to provide a continuity between the first and second contact pieces, so that the position of the perforation is detected. In the film feeding stage, the metal ball comes in rolling contact with the film surface. The contact pieces have a very small resistance to the film feed, and it is scarcely possible that the film will be injured.