♯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
electromagnetic zone, it detects the reader's activation signal. The reader decodes the data encoded in the tag's integrated circuit (silicon chip) and the data is passed to the host computer for processing.
The purpose of an RFID system is to enable data to be transmitted by a portable device, called a tag, which is read by an RFID reader and processed according to the needs of a particular ap
model of human-computer interaction in which information processing has been thoroughly integrated into everyday objects and activities. In the course of ordinary activities, someone "using" ubiquitous computing engages many computational devices and systems simultaneously, and may not necessarily even be aware that they are doing so. This model is usually considered advancement from the desktop
Section 001 선박의 종류 및 선형계수
1. 선박의 종류
(1) 상선
- 여객선(Passenger ship) : 선박 안전법에 의하면 13명 이상의 여객을 수송하는 배. 여
객의 안전과 분위기 조성을 위해 구명 설비 등 여러 장치가 완비되어있으며 객실이 흘수
선보다 위에 위치하여 상부구조가 크다. - 객화선(Passenger and Cargo s
● Definition of plasma
Plasma is one of the four fundamental states of matter, along with solid, liquid, and gas. It is an ionized gas consisting of a collection of charged particles, including ions, electrons, and neutral atoms or molecules. Plasma can be found naturally in the universe in the form of stars, lightning, and auroras, but it can also be artificially created and controlled for
Introduction (What is plasma?)
1. Definition of plasma
Plasma is one of the four fundamental states of matter, along with solid, liquid, and gas. It is an ionized gas consisting of a collection of charged particles, including ions, electrons, and neutral atoms or molecules. Plasma can be found naturally in the universe in the form of stars, lightning, and auroras, but it can also be artif