In this research, a slotted patch antenna sensor is designed for wireless strain and crack sensing. An offthe-shelf RFID (radiofrequency identification) chip is adopted in the antenna sensor design for signal modulation. The operation power of the RFID chip is captured from wireless reader interrogation signal, so the sensor operation is completely battery-free (passive) and wireless. For strai...

Q$~{ The strength and modulus of amorphous diamond, a new materhil for surface micromachined MEMS and sensors, was tested in uniaxial tension by pulling laterally with a fl t tipped diamond in a nanoindenter. Several sample designs were attempted. Of those, only the single layer specimen with a 1 by 2 pm gage cross section and a fixed end rigidly attached to the substrate was successful. Tensil...

2.4. Pressure Transducer The Endevco model 8507-C2 pressure transducer (figure 10) was used for the present measurements. It is a high sensitivity piezoresistive, circular-deflection-type, pressure transducer that has a nominally flat frequency response from 0-70 kHz with a rated sensitivity of 130 mV/psi and a full scale output of 300 mV. The transducer contains an active four-arm strain gage ...

GAGE proteins are highly similar, primate-specific molecules with unique primary structure and undefined cellular roles. They are restricted to cells of the germ line in adult healthy individuals, but are broadly expressed in a wide range of cancers. In a yeast two-hybrid screen we identified the metazoan transcriptional regulator, Germ cell-less (GCL), as an interaction partner of GAGE12I. GCL...

Simultaneous recording of membrane potentials and contractility in isolated rat atria by means of intracellular micro-electrodes and a sensitive strain gage has been used to establish the normal characteristics of the tissue as well as effects of temperature, stimulus frequency and initial tension on muscle. Preliminary correlations between duration of the action potential and the degree of con...

W. H. You, D. Y. Kwon, S. K. Ko Refrigerator Design, Home Appliances Business Samsung Electronics, Suwon, Korea A suction valve is a very important element in reciprocating compressor. And because of the shape of the reed valve its reliability is taken up a subject for discussion and sometimes it is main source of bad product. Because the reliability of the suction valve is directly related to ...

Golf performance varies from person to person because of the differences in physical features of golfer’s body and skill level. Recognizing golf swings of an individual golf player is essential to help improving the golf skill level. This can be done through feedback information provided by a specialized equipment or by a personal coach. Based on the classification of the golfer-swing shapes, t...