Jin-Biao Huang

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Micro hotlm shear-stress sensors have been developed by using surface micromachining techniques. The sensor consists of a suspended silicon-nitride diaphragm located on top of a vacuum-sealed cavity. A heating and heat-sensing element, made of poly-crystalline silicon material, resides on top of the diaphragm. The underlying vacuum cavity greatly reduces(More)
OBJECTIVE To investigate the clinical effects of the Epub of medical imaging film (EMIF) in CT workflow. METHODS All experiments were approved by the ethics committee of the local district. An EMIF application is fully implemented in PACS according to the DICOM 3.0 standard. For a statistical comparison in the effects of the EMIF in CT workflow,(More)
We have designed, fabricated, and tested a new type of thermal shear-stress sensor. The sensor consists of a 2 m wide polysilicon thermistor (with a range of lengths, 80-200 m) on a 1.2 m thick silicon-nitride diaphragm, which is on top of a vacuum cavity 200 200 2 m in size. The vacuum cavity provides a good thermal isolation between the resistive element(More)
AbstructMicro hot-film shear-stress sensors have been designed and fabricated by surface micromachining technology which is compatible with IC technology. A polysilicon strip, 2 pmx80 pm, is deposited on top of a thin silicon nitride film and functions as the sensor element. By using the sacrificial-layer technique, a cavity (a vacuum chamber of about 300(More)
A poly-silicon hot-film shear-stress sensor insulated by a vacuum-chamber underneath has been designed and fabricated by the surface micromachining technology. The sensor is operated at both constant current and constant temperature modes. The dynamic performance (including time constant and cut-off frequency) measurement, calibration, and temperature(More)
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