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
Waters’ balance sheets show that its debt ratio is high. The debt ratio was 0.925 in 2010, 0.896 in 2009, and 0.995 in 2008. Most of its liabilities are short-run debt. This short-run debt seems to be used in investing activities. According to cash flow statements from 2003 to 2010, most cash was used in investing activities. In 2010, for example, net cash flow provided by operating activities
Protection from Injuries
Adequate physical activity
Access to an improved water supply and sanitation has in general increased across Europe, resulting in an 80% decrease in diarrheal disease in young children from 1995 to 2005.
Nevertheless 120 million people do not have access to safe drinking-water now in the European Region.
Especially, more than 50% of the rural populatio
water ingested in liquids and foods
Four sites that lose water
- skin, respiratory air ways, gastrointestinal tract, and urinary tract
- Menstrual flow (in women)
The body gains sodium and chloride by ingestion and loses them via the skin (in sweat), the gastrointestinal tract, and urine.
Primary Active Sodium Reabsorption
Coupling of Water Reabsoption to Sodium Reabs
activity 리간드 4개.
구조식에서 activity를 갖는 COO-부분에 나트륨이 떨어져 나가고 대신 그 자리에 금속이온(Mn, Cu, Fe)이 강하게 결합.
화장품에서의 이용 :
화장품 제조시 안정제용, 인쇄업에서 안정제 및 경도조절제, 세제 제조시 안정제용
* EDTA와 EDTA-2Na의 차이점
- EDTA (C10H16N2O8)
백색의 결정
Flow around and through fish gills
Jeesoon Choi and Dongyeop Baek
School of Mechanical and Aerospace Engineering, Seoul National University
Abstract. An overall view of the flow over the fish gills is first described by using the active pump system and the passive ram ventilation. The concept of ram ventilation is introduced and its merits of reducing hydrodynamic drags and efficient e
Master Plan
1. Textbook: Elementary School English 6, 교육 인적 자원부
2. Unit: Lesson 6. Can I have some water?
3. General Aims of Studying This Lesson
A. To help students to understand talks about asking permission
B. To improve their basic skills of English - speaking, listening, reading, writing
C. To help students to use the ex
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
Sewage that has been aerated
and agitated in order to promote the growth of beneficial microorganisms that break down organic matter.
The activated-sludge process is a
biological method of wastewater treat-ment that is performed by a variable and mixed community of microorganis-ms in an aerobic aquatic environment.
Purpose: to remove settleable organics and floating scum (gr
익숙한 물체와 익숙하지 않은 물체에 대한 탐색시간 차이
그렇다면 Obama는 Bush보다 기억능력이 떨어지는가?
Bush
더 낮은 조명 아래에서 실험
실험자와 같은 방향놓여 있던 object
Obama
Open field test 에서도 더 적은 탐색
Object보다 높았던 실험자의 saliency
기억능력 자체가 아닌 측정의 문제
혐