II. How is CBM formed
Coalbed methane (CH4) forms in one of two ways. During the earliest stage of coalification (the process that turns plant detritus into coal), biogenic methane is generated as a by-product of bacterial respiration. Aerobic bacteria (those that use oxygen in respiration) first metabolize any free oxygen left in the plant remains and the surrounding sediments. In fresh water
2000 B.C - The first recorded (The Susruta Samhita, Sanskrit writing) water purification began with the Egyptians. It is said that impure water should be boiled over a fire, heated in the sun, have a hot iron dipped into it or purified by filtration through sand and course gravel.
A major step in the development of desalination technologies came in the 1940s during World War II when various m
요붕증 (Diabetes insipidus)
정의
plasma osmolality가 증가 되어 있는데도 불구하고 신장이 요를 농축하지 못해 희석된 다량의 소변을 보는 것을 의미한다.
병태생리
ADH의 분비저하 및 작용부족에 의해 신장의 collecting tubule에서 water의 재흡수 저하가 일어나서 polyuria와 요랑의 증가, 요비중의 감소, 혈청
water flow direction, inlet locates downside and outlet locates upside.
Through this, we can know that axial impeller is not suitable. Also, because of wide width of tank, it has poor mixing.
Second, there is a problem with chemicals. PAC is injected with Cl2, so activation of Cl2 must be restricted.
Also, using alum may cause settling.
Alum lowered pH in localized area. To overcome this
water withdrawal with respect to total renewable resources. It is a criticality ratio, which implies that water stress depends on the variability of resources. Water stress causes deterioration of fresh water resources in terms of quantity (aquifer over-exploitation, dry rivers, etc.) and quality (eutrophication, organic matter pollution, saline intrusion, etc.) The value of this criticality rati
in 2000, secondary school net enrolment(75.6%) was below that of the corresponding Eur-B+C average(81.2%) In 2001, Armenia’s secondary school net enrolment jumped to 84.6%. In contrast the average secondary school net enrolment in Eur-A in 2000 was 88.5%(UNESCO 2005)
1)Eur-A =Very low child mortality and very low adult mortality
2)Eur-B+C=Low child mortality and low or high adult mortality
Central-South Africa
Bath BoP Market : Central-South AFRICA
Central-South Africa
Poor water supply, unable to use washing tools
Village and towns on the high reaches
Washing bodies on the muddy and dirty water
vacteria and virus immune disease
South Asia
Relieving excrements, Floating Homes Water Pollution
Low Hygiene Sense Immune Disease
1. Introduction
1) Definition of preservation and food-spoilage micro-organisms
Food preservation is the process of treating and handling food to stop or greatly slow down spoilage (loss of quality, edibility or nutritive value) caused or accelerated by micro-organisms. Some methods, however, use benign bacteria, yeasts or fungi to add specific qualities and to preserve food (e.g., cheese, wine
1. Passive avoidance test
목적
: 학습과 기억(Working memory)
수행 능력 검사
실험 과정
Trial 1
Trial 2
Test
Dark 쪽이 안전하다고 학습할 시간이 필요함
Trial 수를 늘리다 보면 쥐가 Light 쪽을 탐색하는 시간 때문에 오히려 latency가 길어질 수 있음
우리의 경우 머리를 입구 반대 방향으로 놔두면 탐색 시같이
(1) Disease Study
선천성 공장 폐색증(Congenital jejunal atresia)
선천성 장폐색증은 신생아에서 여러 가지 선천성 기형에 의해 생기며 가능한 빨리, 어 떤 경우에서는 태어난지 24시간 이내에 수술적으로 치료하지 않으면 생후 1주일 이내 에 사망할 수 있다.