Abstract: Control feedback for regulating strain output of a shape memory alloy (SMA) actuator using a stress sensor for outputting an indication of a mechanical resistance applied against the SMA actuator, and a state sensor for outputting an indication of a state of actuation of the SMA actuator has been found to be surprisingly accurate. Advantageously feedback detection can be provided with sensors that have low power requirements and can be controlled with simple electronics.

Abstract: A heat sink tester for pressing a heat sink against a simulation heat source includes a base, a pressing assembly and a supporting device. The base is for supporting the heat sink thereon. The pressing assembly presses the heat sink against the base along a first direction. The supporting device is for supporting the simulation heat source thereon. The supporting device pushes the simulation heat source through the base to engage against the heat sink along a second direction opposite to the first direction.

Abstract: An injection mold has a plurality of cavities and a runner system for injecting material into the cavities. The runner system includes a main-runner and a sub-runner. The sub-runner interconnects the main-runner and the cavities. The sub-runner includes a first runner and a pair of second runners. The first runner connects the main-runner, and the second runners respectively connects ends of the first runner. A buffer rejoin is formed around a joint of the first runner and each second runner for mixing material when the material flows from the first runner into the second runners to make the material have a symmetric speed distribution in the second runners.

Abstract: A light emitting diode (LED) lamp includes a lampshade, a light guide pole and a plurality of LEDs. The light guide pole is of light permeable material and received in the lampshade. A plurality of irregular elements is formed on an outer surface of the light guide pole. A distribution density of the irregular elements decreases gradually from two ends of the light guide pole towards a middle of the light guide pole. The LEDs are mounted at the two ends of the light guide pole. Light emitted by the light emitting diodes falls incident into the light guide pole and exits the light guide pole from the outer surface thereof.

Abstract: The present invention relates to a method for dry fermentation and equipment for carrying out the same. The invention equipment comprises a fermentation tank for dry fermentation which includes a tank body 5 for accommodating materials, a flexible sealing membrane 7 for covering said tank body 5, and a tight fixing means 3 for hermetically covering the tank body 5 with the flexible sealing membrane 7. This invention is characterized in that said tank body 5 is provided with a top opening 2 at its top part and at least one side opening 4 for loading and unloading materials at its side portions.

Abstract: A light emitting diode (10) includes an LED chip (14) and an encapsulant (16) enclosing the LED chip. The LED chip has a light emitting surface (141), and the encapsulant has a light output surface (161) over the light emitting surface. The light output surface defines a plurality of annular, concentric grooves (163). Each groove is cooperatively enclosed by a first groove wall (165) and a second groove wall (166). The first groove wall is a portion of a circumferential side surface of a cone, and a conical tip of the cone is located on the light emitting surface of the LED chip.

Abstract: An LED assembly (10) includes an LED (12) and a lens (16). The lens covers on an outer periphery of the LED. The LED has an encapsulant (125) and an LED chip (121) received in the encapsulant (125) and having a light emitting surface (122). The lens has a light output surface (161) over the light emitting surface. The light output surface defines a plurality of annular, concentric grooves (163). Each groove (163) is cooperatively enclosed by a first groove wall (165) and a second groove wall (166). The first groove wall is a portion of a periphery of an imaginary cone and a conical tip of the imaginary cone is located on the light emitting surface of the LED chip.

Abstract: A reading lamp (100) includes a lamp holder (20), a lampshade (40), a bracket (30) connecting the lamp holder with the lampshade, and a white light illuminator (50) received in the lampshade. The white light illuminator includes a light mixer (52), and at least a group of solid-state, light emitting elements (544) arranged to at least one side of the light mixer. The at least a group of solid-state, light emitting elements includes three kinds of solid-state, light emitting elements which respectively emit red, green and blue lights. The light mixer reflects, refracts and mixes the red, green and blue lights to obtain white light which directly radiates and spreads from a light emitting surface (521) of the light mixer.

Abstract: An electronic device includes a first electronic component, a second electronic component adjacent to the first electronic component, a heat sink arranged on the first electronic component to absorb heat therefrom, an axial fan mounted on the heat sink for generating an airflow to the heat sink, and a guiding member. The axial fan includes a frame and an impeller received in the frame. A cutout is defined in the frame facing the second electronic component. The guiding member is arranged between the axial fan and the second electronic component for guiding a part of the airflow escaping from the frame via the cutout to the second electronic component.

Abstract: This invention provides antibodies that bind brain endothelial cell receptors resulting in endocytosis/transcytosis of the receptor and bound ligands. In some embodiments, the ligand comprises the antibody in combination with a pharmaceutically active compound and the antibody directs delivery of the compound across the blood brain barrier (BBB). The invention also provides methods of identifying endothelial cell specific antibodies by panning the library against cultured cell monolayers. The invention further allows for identifying endothelial cell receptors that bind the antibody thereby providing target receptors against which to isolate further cognate ligands and their associated transport systems and by which to identify transcytosis transporters targeted by the antibodies.

Abstract: A securing device includes a securing member defining a securing hole, and a fastener. The fastener includes a spring, and a bolt having a main portion, a bottom fixing portion, and a top head portion. The securing hole includes an inner portion and an outer portion extending horizontally from the inner portion to an outside. A width of the outer portion is smaller than the fixing portion and larger than the main portion. The main portion enters into the inner portion through the outer portion. The fixing portion abuts against a bottom of the securing member. The spring is compressed between a top of the securing member and the head portion. A concave is depressed from the securing member and surrounds the inner portion. A lower portion of the spring is fittingly received in the concave.

Abstract: A heat dissipation apparatus includes a heat sink (30) and a fan (50) mounted on the heat sink. The heat sink includes a plurality of radial fins (311, 331). An air channel (312, 332) is defined between every two adjacent fins. Each of the fins includes a main body (331, 331) and an airflow guiding flange (314, 334) extending upwardly and outwardly from a top side of the main body. The airflow guiding flange is twisted in a radial direction, such that an included angle between the airflow guiding flange and the main body is gradually increased from an outer side (318, 338) towards an inner side (317, 337) of the main body. The fan is used to generate airflow towards the heat sink. The airflow is guided into the air channels between the fins via the airflow guiding flanges.

Abstract: An injection mold has a plurality of cavities and a runner system for injecting material into the cavities. The runner system includes a main-runner and a sub-runner. The sub-runner interconnects the main-runner and the cavities. The sub-runner includes a first runner and a pair of second runners. The first runner connects the main-runner, and the second runners respectively connects ends of the first runner. A buffer rejoin is formed around a joint of the first runner and each second runner for mixing material when the material flows from the first runner into the second runners to make the material have a symmetric speed distribution in the second runners.

Abstract: An LED lamp comprises a lamp enclosure and an LED assembly. The lamp enclosure defines a receiving hole therein, and the LED assembly is received in the lamp enclosure. The lamp enclosure is made of a light penetrable material. A plurality of fluorescent powders are doped integrally and distributed uniformly in the lamp enclosure. The LED assembly comprises a plurality of LEDs. Lights emitted by the LEDs pass through the lamp enclosure for lightening an outside of the LED lamp. A method for manufacturing the lamp is also disclosed.

Abstract: A heat dissipation device includes a heat sink, a cooling fan, an electric motor and a belt. The cooling fan includes a fan housing and an impeller. The impeller includes a hub, a plurality of fan blades and a shaft extending from the hub and having a distal end protruded out of the fan housing. A fan pulley is fixed to the distal end of the shaft. The electric motor includes a driving pulley. The belt has one end engaging with the driving pulley of the electric motor and an opposite end engaging with the fan pulley of the cooling fan. Rotation of the driving pulley of the electric motor is transferred to the fan pulley via the belt to cause the impeller to rotate.

Abstract: A securing device (30) is used for securing a heat sink (10) to a printed circuit board (40) with a heat-generating electronic component (41) mounted thereon. The securing device includes a V-shaped elongated main body (31), a first locking leg (34), a second locking leg (332) and a resilient member (32). The first locking leg and second locking leg are connected to two opposite ends of the main body respectively for engaging with a retention frame (20) on the printed circuit board. The resilient member includes a planar-shaped supporting plate (321) engaging with a bottom portion of the main body and at least one resilient foot (322) extending downwardly from the supporting plate. The resilient foot deforms to exert a resilient force on the heat sink when the heat sink is assembled to the electronic component by the securing device.

Abstract: A clip includes a body, a moveable fastener and an actuating member. The body includes a pressing part, a flat portion and a latching leg. The movable fastener includes a connecting portion, a pivot axis connected at a top end of the connecting portion and an engaging portion. The connecting portion extends through the flat portion. The actuating member defines a guiding groove therein. The guiding groove angles outward to form a height difference along a longitudinal axis of the actuating member between a topmost end and a bottommost end thereof. The actuating member is above the flat portion and connected to the pivot axis of the moveable fastener. The actuating member is levelly moveable relative to the movable fastener so that the pivot axis can slide along the guiding groove to render the moveable fastener vertically moveable between a locked position and a released position.

Abstract: An electronic device includes a first electronic component, a second electronic component adjacent to the first electronic component, a heat sink arranged on the first electronic component to absorb heat therefrom, an axial fan mounted on the heat sink for generating an airflow to the heat sink, and a guiding member. The axial fan includes a frame and an impeller received in the frame. A cutout is defined in the frame facing the second electronic component. The guiding member is arranged between the axial fan and the second electronic component for guiding a part of the airflow escaping from the frame via the cutout to the second electronic component.

Abstract: A heat dissipation apparatus includes a heat sink (30) and a fan (50) mounted on the heat sink. The heat sink includes a plurality of radial fins (311, 331). An air channel (312, 332) is defined between every two adjacent fins. Each of the fins includes a main body (331, 331) and an airflow guiding flange (314, 334) extending upwardly and outwardly from a top side of the main body. The airflow guiding flange is twisted in a radial direction, such that an included angle between the airflow guiding flange and the main body is gradually increased from an outer side (318, 338) towards an inner side (317, 337) of the main body. The fan is used to generate airflow towards the heat sink. The airflow is guided into the air channels between the fins via the airflow guiding flanges.

Abstract: A centrifugal fan includes a housing and an impeller rotatably received in the housing. The housing defines an air inlet in a top plate thereof and an air outlet in a sidewall thereof. The air inlet is perpendicular to the air outlet. The impeller includes a hub and a plurality of blades extending outwardly from a sidewall of the hub. Each of the blades includes an inner blade section connected with the sidewall of the hub and an outer blade section extending outwardly from the inner blade section. An upper portion of the inner blade section is curved upwardly and forwardly from a curved lower portion of the inner blade section towards an adjacent front blade. The curved lower portion has a curvature smaller than that of the upper portion.