SEM?
Scanning electron microscope
To analysis surface of specimen
Qualitative analysis at certain point
Operation principal of SEM
Emission electron from filament
Accelerate electron by electric field
Focusing electron by lens → mono-chromatic electron beam
Generate secondary electron and etc.
Detection of electron
I. Why Pizza-Hut?
Pizza Hut is a subordinate company of YUM Brands, Inc. Pizza Hut Korea opened their first restaurant in Itaewon in 1985. It had been using the catch phrase, “함께 즐겨요, 피자헛” which reminds people of joyful time with close people having Pizza Hut Pizza. It also has various records that prove high satisfaction of the customers or their strong brand power. In fact,
1) Rivalry among Competing Sellers: Fierce to Strong
(1) Big Three U.S. Companies
Automobile companies are facing vigorous battle in North America, and some companies have to deal with their net loss and huge amount of debt. General Motors Co., Ford Motor Co., and Chrysler Group LLC, so called ‘Big Three’ in automotive industry got through major crisis in 2008, and GM ended up filing
I. GM Backgrounds
GM의 역사는 미국 자동차 역사라고 말 할 수 있다. 종업원 647,000여명으로 세계 50여개국 에 진출해 있으며 190여 개국에서 자사의 제품을 판매하고 있다. 최근 Ford의 약진으로 상대적으로 평가절하가 되기도 하였으나 역사면으로나 규모면으로나 미국을 대표하는 자동차 회사임에는 틀림
▦ Physiologic Action of Gut Hormones
Criteria
① Peptide must be related into blood during time that a biologic response in a target organ is being stimulated or inhibited
② IV infusion of pure natural peptide must reproduce the effect on target organ
③ Synthetic peptide should reproduce the effect found with natural peptide
④ Circulating concentration of peptide that cause stimulat