Abstract: A resin composition is provided. The resin composition comprises an epoxy resin and a hardener, wherein the amount of the hardener is about 10 parts by weight to about 200 parts by weight per 100 parts by weight of the epoxy resin and the hardener comprises a first styrene-maleic anhydride copolymer (SMA) copolymer and a second SMA copolymer, the first SMA copolymer has a molar ratio of styrene to maleic anhydride m1, the second SMA copolymer has a molar ratio of styrene to maleic anhydride m2, and m1?m2?3.

Abstract: A resin composition is provided.

Abstract: Embodiments of the present disclosure set forth a sintered talc powder. The sintered talc powder comprising a first X-ray diffraction peak from about 29° to about 30° and having a first intensity and a second X-ray diffraction peak from about 25° to about 27° and having a second intensity, wherein the first intensity is greater than the second intensity.

Abstract: A stable solution of the polymer prepared from N,O-heterocyclic compound and its preparing method are provided, wherein the stable solution is prepared by making the N,O-heterocyclic compound of formulae I or II carry out a ring-opening polymerization: wherein R1 to R3, W1, W2, m, n, p and q are as defined in the specification. The stable solution can be used as a hardener for curing epoxy resin.

Abstract: An antenna includes: a grounding element extending along a first plane; a radiating element having a first side and extending along a second plane substantially parallel to the first plane, the radiating element being aligned with the grounding element in a normal direction transverse to the first and second planes; a bridging element interconnecting the grounding and radiating elements; and a feeding element extending and tapered from the first side of the radiating element toward the grounding element.

Abstract: An antenna includes first and second radiating elements and a conductive arm. The second radiating element has opposite feeding and grounding end portions, each of which is coupled to a respective one of feeding and grounding end portions of the first radiating element. The conductive arm is coupled to the feeding end portion of the second radiating element.

Abstract: An antenna device includes a grounding element, a radiating element, and first and second feeding elements. The radiating element includes a first segment that extends from the grounding element and that has an end distal from the grounding element, and second and third segments that extend from the end of the first segment in opposite directions. Each of the first and second feeding elements includes first and second segments. The first segment of each of the first and second feeding elements is disposed proximate to a respective one of the second and third segments of the radiating element. The second segment of each of the first and second feeding elements is disposed proximate to the grounding element.

Abstract: A housing is used in an electronic device. The housing includes a storing chamber, a diffusion chamber, a ventilating element; and a plurality of air holes defined in the diffusion chamber. The storing chamber is configured for receiving perfume. The diffusion chamber communicates with the storing chamber by a slit. The ventilating element seals the slit to prevent liquid flow therethrough. The diffusion chamber comprises a channel, the smell of the perfume penetrates the ventilating element from the storing chamber to the channel and exit the housing though the air holes. The present disclosure further discloses an electronic device using the housing.

Abstract: A small type photo-interrupter and a fabrication method of small type photo-interrupter. The fabrication method of small type photo-interrupter includes removing a portion of the surface of the substrate between the light-emitter and the light-sensor and forming an opaque sealing member on the place where the portion of the substrate is removed.

Abstract: An antenna includes a T-shaped radiating element and a coupling element. The radiating element includes opposite first and second radiating portions, and a feeding portion that extends transversely to the first and second radiating portions and that is connected to a junction of the first and second radiating portions. The coupling element is disposed between the second radiating portion and the feeding portion of the radiating element, and is coupled electromagnetically to at least one of the second radiating portion and the feeding portion of the radiating element.

Abstract: A tilt sensor includes a body; a first emitter and a first receiver being spacedly disposed on the body, the first receiver being used for receiving a first signal emitted from the first emitter, a second emitter and a second receiver being spacedly disposed on the body, the second receiver being used for receiving a second signal emitted from the second emitter, and an arm rotatably secured on the body. As the tilt sensor device is in a first tilt state, the arm blocks the first receiver to receive the first signal. As in a second tilt state, the arm blocks the second receiver to receive the second signal. As in a third tilt state, the arm blocks none of the first receiver and the second receiver to receive the first signal and to receive the second signal respectively.

Abstract: Embodiments of the present disclosure set forth a prepreg. In one embodiment, the prepreg includes a fibrous material and a resin blend. The resin blend includes an epoxy compound, a compound having a ring structure, and a crosslinking agent. The resin blend has been heated to a temperature substantially greater than 225 degrees Celsius in a curing process when preparing the prepreg.

Abstract: An antenna includes a dielectric substrate, a grounding plane, first and second grounding elements, and first and second radiating elements. The grounding plane is formed on the dielectric substrate. The first and second grounding elements are formed on the dielectric substrate, have a curved shape and a size that are identical, and are connected to the grounding plane. The first and second radiating elements are formed on the dielectric substrate, have a curved shape and a size that are identical, are operable in the same frequency range, and are connected to the first and second grounding elements, respectively.

Abstract: An antenna device includes a grounding element and an antenna. The antenna includes a feeding element, first and second radiating elements, and a parasitic element. The first radiating element is coupled to the grounding element. The second radiating element is coupled to the feeding element, is disposed proximate to the first radiating element, and cooperates with the grounding element and the first radiating element to define an area thereamong. The parasitic element is disposed in the area and extends from the grounding element.

Abstract: An antenna device includes a grounding element, a radiating element, and first and second feeding elements. The radiating element includes a first segment that extends from the grounding element and that has an end distal from the grounding element, and second and third segments that extend from the end of the first segment in opposite directions. Each of the first and second feeding elements includes first and second segments. The first segment of each of the first and second feeding elements is disposed proximate to a respective one of the second and third segments of the radiating element. The second segment of each of the first and second feeding elements is disposed proximate to the grounding element.

Abstract: A tilt sensor includes a body; a first emitter and a first receiver being spacedly disposed on the body, the first receiver being used for receiving a first signal emitted from the first emitter, a second emitter and a second receiver being spacedly disposed on the body, the second receiver being used for receiving a second signal emitted from the second emitter, and an arm rotatably secured on the body. As the tilt sensor device is in a first tilt state, the arm blocks the first receiver to receive the first signal. As in a second tilt state, the arm blocks the second receiver to receive the second signal. As in a third tilt state, the arm blocks none of the first receiver and the second receiver to receive the first signal and to receive the second signal respectively.

Abstract: An antenna includes first and second dielectric substrates, a grounding element, and a radiating unit. The first dielectric substrate extends on a horizontal plane. The grounding element is formed on the first dielectric substrate. The second dielectric substrate extends on a vertical plane transverse to the horizontal plane and is disposed on the first dielectric substrate. The radiating unit is formed on the second dielectric substrate, and is provided with a feeding point, and a grounding point coupled to the grounding element.

Abstract: An antenna includes first and second radiating elements. The first radiating element is operable in a first frequency range. The second radiating element cooperates with the first radiating element to define a slot therebetween in such a manner that the second radiating element is coupled electromagnetically to the first radiating element. The construction as such permits operation of the second radiating element in a second frequency range different from the first frequency range, and a third frequency range different from the first and second frequency ranges.

Abstract: An antenna includes a dielectric substrate, a grounding plane, first and second grounding elements, and first and second radiating elements. The grounding plane is formed on the dielectric substrate and is disposed between the first and second radiating elements. The first and second grounding elements extend from the grounding plane away from each other. The first and second radiating elements are coupled electromagnetically to the first and second grounding elements, respectively.

Abstract: An antenna includes a base element, grounding and feeding points, and first and second radiating elements. Each of the grounding and feeding points is provided on the base element. The first radiating element is operable in a first frequency band, and extends from the base element. The second radiating element is operable in a second frequency band lower than the first frequency band, extends from the base element, and is formed with a slot.