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1718results about How to "Durable" patented technology

Ketone assay

The present invention relates to analyte detection test systems, including test systems for the oral detection of analytes in saliva. The present invention also provides compositions and methods for storing multiple assay tests and compositions and methods for measuring the concentration of analytes in a sample.
Owner:TORANTO ANTHONY +2

Battery cover latching assembly for portable electronic device

A battery cover latching assembly is used in a portable electronic device, which has a battery cover (10) and a housing (40). The battery cover latching assembly (100) includes a latching hole (12) defined in the battery cover, a locking mechanism (300), and a catching portion (42) formed on the housing. The locking mechanism incorporates a button (20). The button has a latching portion (242) disposed on one end thereof. A portion of the button runs through the latching hole of the battery cover and the catching portion of the housing. The latching portion of the button is rotatably engaged with the catching portion of the housing. This arrangement provides a user with both convenient assembly and disassembly operations.
Owner:SHENZHEN FUTAIHONG PRECISION IND CO LTD +1

Method for monitoring corrosion cracks of reinforced concrete and sensor

The invention discloses a discloses a method for monitoring the corrosion cracks of reinforced concrete based on distributed optical fiber sensing technique. The method comprises the following steps: periodically detecting the polarization current of a steel bar and a stainless steel segment embedded in a sensor by an electrochemical work station to determine the initial corrosion time of the steel bar; monitoring the optical fiber strain by the distributed optical fiber sensing technique in real time through using sensing optical fibers surrounding the steel bar and laid in the sensor to deduce the corrosion expansion or corrosion crack stage of the reinforced concrete; and determining the corrosion expansion or corrosion crack degree by a calibration curve. The invention also discloses a sensor for executing the above method. The sensor can be used for monitoring the total corrosion cracking process of reinforced concrete at any position without damaging the structure of the concrete by monitoring the polarization current and the sensing optical fiber strain of the corroded steel bar, and can determine the corrosion crack stage and the degree of the reinforced concrete. The sensor is used for monitoring and evaluating the durability of reinforced concrete structure in the field of civil engineering.
Owner:ZHEJIANG UNIV

Phenanthroline compound and organic light emitting device using same

A novel phenanthroline compound is provided which is represented by the general formula [I]: (wherein R1, R2, R3, R4, R5 and R6 are the same or different and each is selected from a hydrogen atom, an unsubstituted or substituted alkyl group, an unsubstituted or substituted aralkyl group, an unsubstituted or substituted aryl group, an unsubstituted or substituted heterocyclic group, and a halogen atom; and Ar1 and Ar2 are the same or different and each is selected from an unsubstituted or substituted fluorenyl group, an unsubstituted or substituted fluoranthenyl group, an unsubstituted or substituted perylenyl group, and an unsubstituted or substituted carbazolyl group). An organic light emitting device using the phenanthroline compound is also provided that has a light output with a high efficiency and a high luminance and has a high long-term durability.
Owner:CANON KK

Light bulb

A light bulb includes an enclosure, a heat-dissipating unit, and a lamp unit. The enclosure extends along an axis, and defines an inner space therein. The heat-dissipating unit includes a hollow first heat-dissipating element disposed in the inner space, a second heat-dissipating element surrounded by the first heat-dissipating element and extending along the axial direction, and an end heat-dissipating element mounted to the second heat-dissipating element at a distal end thereof. The lamp unit includes a first circuit board disposed at a periphery of the first heat-dissipating element, a second circuit board mounted on the end heat-dissipating element, and a plurality of light-emitting elements mounted on the first and second circuit boards for emitting light beams.
Owner:YADENT
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