http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Hydroxyapatite 계 세라믹스의 감습특성에 관한 연구
육재호,조기선 ( Jae Ho Yuk,Ki Sun Cho ) 한국센서학회 1997 센서학회지 Vol.6 No.1
Ca_(10)(PO₄)_6(OH)₂ humidity-sensitive devices were fabricated by a solid reaction method, and He humidity-sensitive characteristics were investigated. The impedance decreases with increasing relative humidity, and the good sensitivity is shown in which impedance changes by about 10²Ω over the region of 30∼90 %. Also, It is shown that the humidity sensitivity is stable in temperature variations and long time exposures to the humidity. The sensitivity of the specimens is not affected by a heat treatment, and the hysteresis in one humidity cycle is negligible.
이덕출,황명환,박구범,조기선,임헌찬 한국산업안전학회 1992 한국안전학회지 Vol.7 No.2
In this thesis, the electrification phenomenon was studied by measurement of charging current and discharging current in polymers when the carriers generated by corona discharge were supplied to the surface of polymers. Corona charging current of PVC, polar and noncrystalline polymer, was larger than that of nonpolar and amorphous polymers. Corona charging current on the specimen of naked upper surface (CIM) was larger than charging current on the specimen of electrode made. Carrier injection differed from interfacial phase of polymer surface. The transfer phenomenon varied with chemical structure of polymer and then the polar effect of PVC was remarkable because of large electron affinity of Cl. In the characteristics of discharging current of PVC, the abnormal current was observed. It was supposed that this phenomena presented the trap of injected carriers in PVC and that static electricity phenomenon was generated by trap.