摘要:
An LED light engine comprising a high thermal conductivity substrate (e.g., a metal-clad PCB), a plurality of light-emitting-diode (LED) semiconductor devices mechanically connected to the substrate, an outer dike fixed to the substrate and surrounding at least a portion of the LED devices, and a substantially transparent polymeric encapsulant (e.g., optical-grade silicone) disposed on the plurality of LED devices and restrained by said outer dike. In one embodiment, the light engine includes a reflector (e.g., a generally conic reflector) fixed to the substrate to form the outer dike. In another embodiment, an optical component (e.g., a lens, filter, or the like) is optically coupled to the polymeric encapsulant disposed on the LED devices.
摘要:
An LED light engine comprising a high thermal conductivity substrate (e.g., a metal-clad PCB), a plurality of light-emitting-diode (LED) semiconductor devices mechanically connected to the substrate, an outer dike fixed to the substrate and surrounding at least a portion of the LED devices, and a substantially transparent polymeric encapsulant (e.g., optical-grade silicone) disposed on the plurality of LED devices and restrained by said outer dike. In one embodiment, the light engine includes a reflector (e.g., a generally conic reflector) fixed to the substrate to form the outer dike. In another embodiment, an optical component (e.g., a lens, filter, or the like) is optically coupled to the polymeric encapsulant disposed on the LED devices.
摘要:
An integrated fan pump includes a fan, a pump, and an electrical drive mechanism such as an electric motor configured to simultaneously drive both the fan and pump with respect to the housing. A heat exchanger is preferably connected to the pump and the component to be cooled. In one embodiment, the fan head and the pump head are fixed to a common axle, a single magnet is fixed to the fan head, and the magnetic coil is fixed to the housing. In another embodiment, the fan head and pump head rotate about a fixed axle, the magnetic coil is fixed to said housing, one magnet is fixed to the fan head, and a second magnet is fixed to the pump head.
摘要:
A heat transfer system is presented for managing thermal transients, thus providing engineers greater flexibility in designing thermal solutions for applications subject to transient heat-generation. A heat reservoir device for managing a heat input subject to transient conditions includes a heat transfer subsystem having a first end and a second end, where the first end is thermally coupled to the heat input; a heat storage subsystem coupled to the second end of the heat transfer subsystem, where the heat storage subsystem comprises a phase change material responsive to the transient conditions. The excess heat load during transient operation is temporarily absorbed by the latent heat of fusion when the phase change material changes its phase from solid to liquid. Subsequently, the absorbed heat can be released back to the ambient via a heat rejection subsystem. This allows engineers to design smaller heat sinks capable of accommodating given transient conditions. This results in heat sinks which are lower cost and smaller size, or which reduce the requirement to provide higher airflow, thereby also decreasing cost and noise, and increasing reliability.
摘要:
An LED lighting device for use in place of a commercial-standard light bulb. For example, a commercial-standard light bulb typically has an outer surface profile, generally defining its shape and the LED lighting device has its own surface profile which substantially mimics the surface profile of the commercial-standard light bulb. Additionally, LED lighting device may further comprise a heat sink for dissipating energy generated by the LED lighting device. In accordance with various embodiments, the heat sink creates the LED lighting device's outer surface profile and is configured to substantially mimic the outer surface profile of the commercial-standard light bulb.
摘要:
Methods, apparatus, and articles of manufacture to identify media delivery are disclosed. An example method includes receiving a first log from a media provider, the first log comprising first source address information, first destination address information, first source port information, first destination port information, and media identification information; receiving a second log from a first receiver, the second log comprising second source address information, second destination address information, second source port information, and second destination port information; comparing information in the first log to information in the second log to attempt to identify a matching entry between the media provider and the receiver; and when a matching entry is identified, storing the media identification information from the first log in association with the receiver.
摘要:
The full-length nucleic acid sequence of the C1 bacteriophage is disclosed in the present application. The specific regions of the C1 genome encoding the PlyC lysin have also been identified and sequenced. The invention relates to the pharmaceutical and diagnostic utility of these sequences and provides for development of pharmaceutical compositions for treating or preventing streptococcal infections in mammals, for compositions for decontamination of inanimate surfaces and for diagnosis of streptococcal infections.
摘要:
Methods, apparatus, and articles of manufacture for using location information to manage spillover in an audience monitoring system are disclosed. In particular, the example methods, apparatus, and articles of manufacture detect spillover to generate media monitoring information. Initially, a first sensor located in a first location and a second sensor located in a second location receive a portable metering device signal. First location information is associated with receiving the portable metering device signal via the first sensor and second location information is associated with receiving the portable metering device signal via the second sensor. Media monitoring information is generated based on one of the first location information or the second location information.
摘要:
Methods and apparatus to extract audio codes are disclosed. An example method includes receiving signals on a plurality of channels and ranking the signals based on at least one characteristic of the signals. A first channel from the plurality of channels is selected based upon the ranking of the signals. The example method further include determining whether a first signal on the first channel includes at least one code and extracting the at least one code from the first signal when the first signal includes the at least one code.
摘要:
Methods and apparatus for detecting a composition of an audience of an information presenting device are disclosed. One disclosed method captures images (18) of the audience, determines (20) a number of people within the images and prompts (24) the audience to identify its members if a change (22) in the number of people in the audience is visually detected. This disclosed method voids both under-sampling of the audience and excessive prompting of the audience by only requesting entry of identification data when an audience change occurs. Methods and apparatus to determine the number of persons in an image or series of images are also disclosed.