Comparison with existing technique
1. Pendulum – It is used hanging from the ceiling
Feature
A safety risk
Effect on the environment
Inconvenience in measure
Comparison with existing technique
2. Laser – It is used with verticality
Advantage
Prevention of fall accident
Low effect on the environment
Disadvantage
Impossibility of transmission due to obstacle
Not a f
1-2. Characteristic polynomial의 발견.
eigenvalue를 구하는 방정식인 characteristic polynomial은 Cayley가 발견하였다. Cayley는 또한 ``2차 정사각행렬은 자신의 특성방정식을 만족한다''는 것을 증명했다. 그는 자신 이 3차 정사각행렬에 관한 연구결과도 확인했다고 주장했다. ``임의의 행렬이 자신의 특성방정식 을 만
technique으로, 일반적으로 printing, molding, transfer의 3단계 과정을 거친다.
1.1.1 Printing
Master를 만드는 과정이다. Photolithography, e-beam, micro-machining, photoresist 등 다양한 방법을 통해 원하는 모양을 가지는 master를 제작할 수 있다. 그 중 photoresist는 light-sensitive material로, 특정 geometric pattern을 가지는 photomask를
techniques. Sample illumination is transmitted white light and contrast in the sample is caused by absorbance of some of the transmitted light in dense areas of the sample.
2) Dark field microscopy
Dark field microscopy describes microscopy methods, in both light and electron microscopy, which exclude the unscattered beam from the image. As a result, the field around the specimen is general
FreeMarkets Online, the innovator of internet auction.
FreeMarkets Online was founded in Pittsburgh in 1995. Pittsburgh had regional benefits; first, they had abundant technical personnel and the labor costs were relatively low. Second, Pittsburgh had prominent technique in manufacturing software. Last but not least, the area where Pittsburgh was located on Midwest of the U.S. was appropriate f