모델예측제어(MPC)의 개념
최신 고급제어 기술
공정모델 이용
공정출력 예측
최적 제어입력 제공
모델예측제어(MPC)의 특성 및 장점
기존 제어 기법으로 어려움이 있는 공정에 대한 효율적인 제어
공정제약에 대한 엄밀한 처리
최적화를 통한 운전비용 절감 및 경제성 제고
비정방 시스템에
DEFINITION
REQUEST
To express a desire for; ask for. Often used with an infinitive or clause
To ask (a person) to do something
RESPONSE
Something that is done as a reaction to something that has happened or been said
PREDICTION
First, we predict Korean more polite and indirect than American.
Second, we predict Korean don’t interrupt during employee questioning.
Third, when
Financial specialist : fundamental analysis is based on specific, proven company performance. so, the forecasting future earning is possible
Academia : the calculation of past earnings growth has nothing to do with predicting future growth
Concentrating on the prediction itself : forecasting future earning is inefficacious.
Wall Streeters
Specialists > Amateur, Individual Investor
Analyzing and predicting
1. Market segment descriptor (시장 분할 기술자)
각 분할된 시장의 인구 통계적, 사이코그래픽 Profile을 소비자행동과 연결
소비자행동과 상관관계가 “충분한” 인구통곜적 변수를 도출
인구통계적 변수로 그 분할시장을 설명
Trend analysis (동향분석)
인구통계적 요소 변화
Expected PER for Korean market is just 9.4 times (based on Kospi 1700), and the number of EPS is predicted of 48% for 2010, 7% for 2011.
1. The result by installment savings (After 1 year)
= (750,000 * 12) + {750,000 * 12(12+1)/2 * 6.2/12} = \9,302,250 (Earnings Before Tax)
2. The result by stock investment (After 1 year)
= 750,000 + (750,000 * 1.95) = \10,462,500
What is the problem?
Man’s growing energy demands
Supply of oil depends on
- Rates of extraction
- Endowment in Nature
- Economic and political factors
Propose of the project
Endowment in Nature
- Prediction of oil exhaustion
Rates of extraction
- Drilling cost and Depth
Why?
Increases with a resulting increase in
rig capacity
Changes in the rate of penetration.
Logistic Regression & Probit Regression by SPSS
I. Logistic regression
A. Extension of multiple regression but the dv is categorical
B. Value being predicted represents a probability, and it varies between 0 and 1
C. Possible to use categorical ivs (dummy coded, but won’t here)
D. Key concept: logit
1. natural logarithm (ln) of the odds
2.
3. Therefore, prob success + ? + + + +
E. SPS
predict the future, but is can make statements of an if A then B type.
경제적인 접근은 명확하거나 혹은 표준(규범)적이지 않다. 그것은 미래를 예언 할 수는 없으나 만약 A가 그렇다면 B일것이다라는 타입으로 설명 할 수는 있다.
8. Because of their individualistic approach, economists tend to look to the market to solve social problems. In an
LNG사업은 생산 - 수송 - 소비의 과정이 유기적으로 연결되어 부가가치를 창출하는 사업구조를 지니고 있음 Integrated Value Chain
세계 천연가스 가채 매장량은 179.83 TCF (Trillion cubic meters) : equivalent to 131 Billion Ton LNG & 162 Billion TOE
매장량 풍부 - 가채년수 (Reserve/Production Ratio) : 65년 (cf. 석유 – 41년)