* Deep penetration welding
충분히 높은 에너지 밀도에서 레이저 빔은 작업 공간에 있는 재료의 소재의 표면이 기화하기 시작하는 정도까지 열을 가하게 된다.
레이저 자극은 대략 106 / cm2 을 넘어서야 한다. 재료의 기화가 됨에 따라서 사라지는 금속수증기의 압력의 결과 키홀(keyhole)은 소재에 생성된다. 기
Core Question
-How deeply were the scandals rooted?
-What extent was the board aware?
Bribery scandals are milestone
Challenges For New CEO
-To bring the company out of the cloud of the bribery scandals.
-To sustain the growth momentum
-To gain confidence of labor and management
Kindergarten has two courses, whole-day and half-day, with teachers following a similar schedule twice a day.
Teachers in primary classrooms are faced with the challenge of meeting the needs of children with widely varying levels both of readiness for learning and of acquired knowledge and skills. The challenge is to engage them all in learning based on where they are, with a view of unlimite
탐구의 필요성이 없는 실용적인 학문은 결코 연구되지 않는다고 생각한다. 그러므로 탁월하게 실용적인 행정학이 이 나라의 대학에서 자리를 잡고 있다는 사실은 바로 미국식 행정에 대하여 보다 더 알아야 할 필요성이 있다는 것을 증명하는 것이고 그러한 사실을 입증할 수 있는 사례이다. 하지만 이
Part 1 - 2. THE PROCESS OF INNOVATION OF CJ
Part 1 - 2 - 1. The reason why Jeil-jedang separate from Samsung
The most important reason Jeil-jedang separated the company from Samsung in 1993 was related to Korean government’s policy at that time. Past president Kim Young-sam carried out policy, in which prominent conglomerates should focus on two or three fields of their business. By doing t
of their own officials and of companies from developed countries, although they are least able to afford its costs.
또한 종종, 부패는 세계의 가장 가난한 국가가 그들의 공무원과 선진들로부터 온 회사들의 부패로 인한 비용들을, 그들이 지불할 능력이 전혀 없음에도 불구하고 지불해야 한다는 것을 의미한다.
Moreover, available e
1. Uptake Hydrogenase
1) Definition of Uptake Hydrogenase and Mechanism of Hydrogen Production
Uptake hydrogenases are Ni-Fe enzymes that catalyze the conversion of hydrogen gas to hydrogen ions and electrons. They are found in the heterocysts and not in the vegetative cells of nitrogen-fixing strains of cyanobacteria. They remove the hydrogen gas produced by nitrogenase when they carry o
What is the G-20
The Group of Twenty (G-20) Finance Ministers and Central Bank Governors was established in 1999 to bring together systemically important industrialized and developing economies to discuss key issues in the global economy. The inaugural meeting of the G-20 took place in Berlin, on December 1516, 1999, hosted by German and Canadian finance ministers.
Mandate
The G-20 is an inf
4. Terminology 관련용어
① 안정성 협심증(Stable angina)
- 협심증 유발인자가 작용한 후에 협심증 발작이 발현되는 병형으로서 발작의 지속, 정도 및 횟수, 치료의 반응성 등이 수개월동안 변하지 않는 형
② 불안전성 협심증(Unstable angina)
- 예후가 나쁜 협심증으로서 환자의 병력이 불안전한 환자에게서
1. Introduction
1) Definition of preservation and food-spoilage micro-organisms
Food preservation is the process of treating and handling food to stop or greatly slow down spoilage (loss of quality, edibility or nutritive value) caused or accelerated by micro-organisms. Some methods, however, use benign bacteria, yeasts or fungi to add specific qualities and to preserve food (e.g., cheese, wine