EMI/EMS/EMC
1. 개요
◦ 전자파 방해 규정에는 능동장해규제(EMI)와 수동장애규제(EMS)가 있음
◦ 능동장해규제는 전자파를 발생시키는 측(EMI)에 대한 규제임
◦ 수동 장해규제는 전자파 내성(EMS)에 대한 규제임
◦ 전자파 방해는 기기, 장비 또는 시스템의 성능을 저하시킬 수 있는 전
Ⅰ. 서론
제시되는 CDMA WATM 시스템의 매체 접속 제어(MAC) 방식은 중앙 제어 예약 접속 방식은 상향 전송 프레임과 하향 전송 프레임은 TDD(time division multiplexing)에 의해 구분된다. 양방향 모두에서 전송 프레임은 제어 서브프레임(control subframe)과 트래픽 서브 프레임(traffic subframe)의 두 서브 프레임으로
features1.
fuel cell is a kind of generator that provides electricity, batteries are like warehouses that store electricity.
features2.
The maximum output energy from the battery
= 50% forms of energy+50% heat
=>The energy efficiency is 50%.
features3.
large energy density.
(store a lot of energy per weight)
Recently, as the amount of storage for capacito
Psych (soul) + logy (study)
Psychology is the scientific study of mind and behavior.
Plato : Nativism
“ Certain kinds of knowledge are innate or inborn “
Aristotle : Philosophical empiricism
“ All knowledge is acquired through experience”
Rene Decartes (1596-1650)
“ Body and mind are
fundamentally different things”
2-3. Type of Business
It is basically a travel agency for international students who are studying in Korea universities. This business is like any other ordinary travel agencies. It is a retail business that sells travel related products and services to customers on behalf of suppliers such as hotels, sightseeing tours and packages holidays that combine several products in Korea.
But the diffe