irradiation of US Army
-> a linking of the technology with the military in the minds of the public
1958 World first commercial food irradiation (spices) at Stuttgart, Germany
2. X-rays
They are caused by atomic transitions and they are usually less energetic than gamma rays.
X-rays with varying energies are generated by machines.
→ To produce the X-rays, a beam of electrons
irradiation, and adding preservatives or inert gases such as carbon dioxide. Other methods that not only help to preserve food, but also add flavor, include pickling, salting, smoking, preserving in syrup or alcohol, sugar crystallization and curing.
As the preceding paragraphs say, many kinds of food preservation technologies are around for preventing foods from the undesirable results. Specifi
Who is interested in the process?
Alongside traditional methods of processing and preserving food, the technology of food irradiation is gaining more and more attention around the world. Although regarded as a new technology by some individuals, research on food irradiation dates back to the turn of the century with the first USA and British patents being issued in 1905 for the use of ionizing
To stop or greatly slow down spoilage of food
Preventing
the growth of bacteria, fungi, and other micro-organisms
the oxidation of fats which cause rancidity
natural aging and discoloration
Drying, freezing, vacuum-packing, canning, pickling, salting, smoking, food irradiation, and adding preservatives, etc.
Various food-spoilage micro-organisms leads development of various modern techn
1. 레독스 플로우 전지의 원리와 구조
(1) 정의
레독스플로우(Redoxflow) 전지란 reduction(환원), oxidation(산화), flow(흐름)의 단어를 합성한 것으로, 가수가 변화하는 금속 이온을 가진 수용성 전해액을 탱크에 저장하고 그 전해액을 펌프로 셀이라고 불리는 부분에 송액 하여 충∙방전하는 전지를 의미
Abstract
Bioethanol is one of the alternative sources of oil resources which received attention with biodiesel. Many countries produce bioethanol from food sources such as corn and sugarcane, but it causes food-energy conflicts and farmland problem. So it needs to focus on new biomass which is sustainable, renewable, cost-effective and do not occurred any conflicts. Algae are one of the bioma
3) 형성 과정
다른 혈구세포들과 마찬가지로 pluripotential stem cells로부터 시작된다. Stem cell 이후로 적혈구 생성과정에서 나타나는 첫 번째 세포는 proerythroblast이다. 세포가 분화할수록 Ribosome에 의해 핵은 작아지고 세포질은 basophilic하게 된다. 이 상태의 cell을 basophilic erythrobast라고 한다. 이후 세포는