Problem 1 (20pt) Draw both polar plot and bode plot of the following transfer function:
G(s) = 1
s(s + 1) (1)
Solution of Problem 1 (20pt)
1. (5pt) Consider
G(jω) = 1
jω(jω + 1) (2)
2. (5pt) The magnitude and phase are obtained for ω ≥ 0 as follow:
|G(jω)| =
1
ω
√
1 + ω2
→ |G(jω)|dB = −20 log10 ω − 20 log10
p
1 + ω2 (3)
∠G(jω) = −90◦ W
Project 1A
The New York Times Company
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Distribute content generated by the newsroom in print, web and mobile.
The New York Times Company
In early 2017, about 3 million paid subscribers.
I. 유동성 비율(Liquidity ratios) 분석
유동자산은 가장 손쉽게 현금화할 수 있는 자산이라고 정의한 바 있다. 따라서 기업의 유동성이란 보통 기업이 단기간에 현금으로 지급해야 하는 부채를 얼마나 차질 없이 상환할 수 있는가를 의미한다.
따라서 S상사의 경우 유동부채는 231억9천4백만 원인데 과연
Crisis in Mali
MALI
Population: 15.4 million
GDP per capita: about $1,000
Agricultural society
(raw cotton)
H.D.I: 175 / 187countries
1960. 6. 20 Federation gained independence from France
① Modibo Keïta :1960~ 1968
- One-party state
- Socialist orientation
- Nationalization of economic resources
② Moussa Traoré : 1968. 11 ~ 1992
- 1968~1980 : dev
Research Need and Purpose
Research Purpose:
Investigate the correlation between adolescents’ music preferences and sociality. There is research about music preferences, but it only addresses character types and lacks direct sociality research.
Thus, our research will focus on recognizing the correlation between music preferences and sociality.
Research Questions
One: Is there a
Ⅰ. Current status of Korea's marketing channel
After opening of marketing industry in 1996, a variety of new companies began to emerge in South Korea. The rapid growth of discount stores, TV home shopping and Internet shopping make the marketing industry change rapidly. This phenomenon in the marketing market means that marketing firms stick together to achieve the economies of scale. Accordi
Chinese economy and currency regime
Chinese economy had been controlled by the central government under the planned economy regime until 1979 (Morrison, 2007). In other words, most economic conditions used to be decided by the state in accordance with its policy, not by the market forces. From 1979, however, China has been experiencing huge innovation in its economic system until the present tim