3. Experimental tools
1) Ultrasonic detector
It is widespread use of equipment that used in ultra sonic testing. And it also have lots of control function.
2) probe
A protected face transducer is a single element longitudinal wave contact transducer that can be used with either a delay line, protective membrane, or protective wear cap.
3) couplant A couplantis a material (usually liq
tests using a contrast material containing barium.
A stool sample that is mixed with urine or blood.
Not collecting a large enough sample.
Not quickly enough.
MacConkey 배지를 일차 접종배지로 사용한다.
Salmonella-Shigella, xylose-lysine-deoxycholate 또는 Eosin methylene blue배지와 같은 선택감별배지를 추가한다.
Salmonella:selenite-F or Gram negative
E.c
test gasoline or naphtha on straight asphalt.
RC method of construction - RC sleeper concrete refers to concrete tie that compression is strong but strengthen reinforcing rod to strengthen seal because is weak to seal.
(1) RC method of construction
Fig 7. RC structure.
If define RC method of construction breifly, because rubing cement and sand, gouge the interval and call method of constru
나노복합재료연구실 ( Nano Composite Research Lab.)
1. Purpose of this study
■ Measurement of Young's modulus using sonic resonant test
■ Measurement of Young's modulus using beam bending test
2. Introduction
Young's modulus is one of the important materials properties that is related with the bonding force between atoms or ions in materials. That will give a cle
About permeability importance
From the inside which will bite flowing in the water
– Gap among is connected each other and from the place which is high flowing with the low-end place
Is caused by with permeation and power affects in stability
(When there is permeation type, gap hydraulic pressure increase -> Effective stress decrease -> Shear strength decrease -> In stability fa