Based on the data we found on the annual report and detailed product report of the company, we found out that a person can assemble 13 big LCDs in a day if they work for 10 hours. Therefore, from 13/10 we get 1.3 LCD per hour, and in order to fix this into labor hours per assembly, we divided 1 with 1.3 and got 0.77.
Labor hours per testing: 0.5
Since Labor hours for testing was recor
모바일 와이맥스 시스템 프로파일
(WiMAX Forum’s Mobile WiMAX System Profile)
와이브로는 다양한 스펙 가운데서 아래의 특성을 옵션으로 선택하여 사용한다.
- 높은 스펙트랄 효과를 위하여 ( 높은 데이터 전송 비율)
High SNR
- 높은 모듈레이션과 높은 비율로 코딩한다.
(High order modulation and high rate coding)
- 높
출력하기 위해서는 펄스 신호로 변환(변조)할 필요가 있다. 이 역할을 해내는 것이 PWM 회로이다. 스위칭 출력회로는 고효율 전 력전송을 실현하기 위해 필수적이다. 마찬가지로 PWM 회로 도 고효율 전력변환에 반드시 필요한 것이다.
PWM 방식의 종류
① Carrier Based PWM
② Optimal PWM
③ Space Vector PWM
Problem: Needed global production platform; existing infrastructure was a hodge-podge of different systems, platforms; data did not flow between systems
Solutions: Standardized on Oracle E-Business Suite 12, an enterprise application with modules for multiple functions
With integrated system, Severstal NA is able to optimize end-to-end processes instead of individual processes; to deliver highe
optimum fin spacing of three different fins depend on their shapes.
기호설명
: Heat transfer
: the total number of fins
: the number of pins in the horizontal direction
: the number of pins in the vertical direction
: the array base-ambient temperature difference
: the fin efficacy
: the array base heat transfer coefficient
: the average heat transfer coeffic