Figure 13 shows that cryo pump is cooling pump. It means this pump is cooling, liquefaction and store air, not pumping. Generally, it has 3 processes like condensation, absorption and trap at low temperature. The cooled air or molecules do not have any momentum so it is no possibility to heat any molecules. It means vacuum.
Cryo pump have High emission velocity and high emission capacity so it
PHB`s Separation & Purification
Target of this study conducted to obtain a purely material PHB purification process debris in the damaged cells, and to remove the remaining medium components. PHB has been removed during the refining process with just remove the present efficiency of the overall purification stayed in the 70-80%.
PHB Synthesis Pathway
Alcaligenes eutrophus PHB in normal circ
Calculations of the design of each unit operations
Flowrate
Present Average Flowrate = 4220 m3/d
Water use per capita = 4220/15000 = 0.281333 m3/d capita
Population after 10 years = 15000 Χ 1.0310 = 20158.75 ≒ 21000 capita
∴ Average Flowrate = 0.281333 Χ 21000 = 5908 m3/d ≅6000m3/d
Peak Flowrate = 5908 Χ 1.5 = 8862 m3/d ≅9000 m3/d
Screening
Conditions
Cle
Working in the static mode, the bending arises as a consequence of a surface stress change induced by any molecular reaction which takes places on only one of the cantilever surfaces. The induced surface stress change could be positive or negative, depending on the surface deformation generated. The factors and phenomena responsible for this change is today not fully understood due to the complex
주제
Micro-encapsulation을 이용한 생체적합성
나노 파티클 제조 및 특성분석
목표
1. Atomizer 이용한 농도 별 Pluronic 입자 제조
2. Micro-encapsulation 이용한 Pluronic 캡슐 제조
3. 시간에 따른 나노입자 크기변화와 분산 안정성 비교를 통한 encapsulation efficiency 비교
4. 온도에 따른 Pluronic 방
43)튜렛 증후군(Tourette syndrome)
(1) 튜렛 증후군이란?
튜렛 증후군은 경련(tics)이라 불리는 음성 통제불능과 반복된 무의식적 행동에 의해 특성화된 신경장애로 유전된다. 몇몇 경우에서 쓰는 부적절한 단어와 문장을 사용한다. 이병은 일반적으로 18세 전에 발생한다. 튜렛 증후군은 모든 민족에서 발
Definition
: compounds that have some antimicrobial activity
from nature source
① plant origin
green chemicals
Spices and herbs are well known to inhibit
bacteria, yeasts, and molds.
② Microbial origin
Biopreservatives
main stream field of study is the use of
lactic acid bacteria(LAB).
Definition
host-synthesized, l
Change of conductivity being
normal state and gas detecting in sno2 grain boundary
Amount of desorption and absorption of oxide and free electron
can control sensor sensitivity
Electrode and the electrolyte solution while maintaining a constant current from the direct oxidation and reduction when measuring current to detect the gas.
Cause ionization of the electrolyte solution, the
② Its evolution(past) and/or how the technology is moving or is expected to evolve
- Kim Sung Min
Ethanol is nowadays an important product in the fuel market. Its market grew from less than a billion liters in 1975 to more than 39billion liters in 2006 and is expected to reach 100 billion liters in 2015. Less than 4% of the ethanol is produced synthetically from oil, while the rest is produ