♯형광체(phosphor)
(1)형광체의 정의
전자 빔의 충격에 의해 발광하는 아주 작은 결정 입자의 집합체. 텔레비전 수상관에는 일반적으로 황화물(黃化物) 형광체(ZS 또는 ZS와 CdS의 혼합 결정에 소량의 Ag를 첨가한 것)가 많이 사용되고 컬러 수상관의 적색 발광용으로는 희토류(稀土類) 형광체(Y2O2 또는 Y2
♯형광체(phosphor)
(1)형광체의 정의
전자 빔의 충격에 의해 발광하는 아주 작은 결정 입자의 집합체. 텔레비전 수상관에는 일반적으로 황화물(黃化物) 형광체(ZS 또는 ZS와 CdS의 혼합 결정에 소량의 Ag를 첨가한 것)가 많이 사용되고 컬러 수상관의 적색 발광용으로는 희토류(稀土類) 형광체(Y2O2 또
1. Profile of Technology
1) Technology overview
1) Brief Explanation
>> What is RFID?
Radio frequency identification (RFID) is a generic term that is used to describe a system that transmits the identity (in the form of a unique serial number) of an object or person wirelessly, using radio waves. It's grouped under the broad category of automatic identification technologies.
Auto-ID
and gentlemen,
please take your seats
for the demonstration of the aircraft.
What you are about to see is Europes
answer to the electronic battlefield:
the first working prototype
of the Tiger helicopter.
Uniquely manoeuvrable, the Tiger
not only uses Stealth technology,
it is hardened against all forms
of electronic interference,
radio jamming
and electromagnetic radiation.
I have a small sur
electromagnetic, CLANKING to the steel
to support weight. A button releases the magnetic charge when the
bolt is pulled up by cords to a higher position. The Thief is
remarkably strong and agile, scaling the wall with fluid precision,
until...
...our summit. A softly-lit, glass-walled PENTHOUSE on the
100th floor. Subtle spots which bathe paintings, sculptures,
in a cavernous coldly-decorated spa