2. Objective
1) To investigate of solid-liquid mixture flow characteristics in a slim hole annulus
2) Effect of pipe rotation, fluid property, annulus inclination on the particle transport velocity, transport efficiency and pressure drop
3. Theoretical background
3.1 Reynolds number
Reynolds number can be defined for a number of different situations where a fluid is in relativ
- 일정한 압력과 온도에서 polymorphic transformation을 위한 Driving force와 Polymorphs의 상대적 안정도를 이야기 하기 위해서는 △G = △H - T△S의 관계가 매우 중요하다. 이것을 Diagram으로 옮긴 것이 Figure 5와 같다. 온도가 증가 할수록 Polymorph인 물질들의 H값이 서서히 증가하고, G값은 점점 감소하는 경향을 보이
addition to Nb, other elemental peaks could be detected from the surrounding materials. The Al and Si peaks were generated from the holder (the O peak was visible due to oxidation of the holder itself), the Ni peak originated from the sample grid and the extraction replica was mainly responsible for the C peak. (Note: N was not observed in these particles, possibly due to strong absorption by car
particles. Citrate-capped gold nanoparticle, prepared through reduction of HAuCl4 with borohydride ions have traditionally been chosen as seeds for gold nanorod growth. Addition of silver nitrate during Au nanorod growth from penta-twinned seeds leads to an increase in the gold nanorod yield and greatly improves control over the aspect ratio. Contrary to the results obtained with citrate-capped A
particles that are in constant motion.
A useful theory, in addition to explaining past observations, helps to predict events that have not as yet been observed. After a theory has been publicized, scientists design experiments to test the theory. If observations confirm the scientist몶s predictions, the theory is supported. If observations do not confirm the predictions, the scientists must sear