완충 용액을 가하여 일정한 pH로 조정한 다음 지시약과 킬레이트 표준액을 이용하여 적정하는 방법을 말한다.
EDTA는 ethylenediamine tetraacetic acid의 약자로 금속과 1:1 착화합물(chelate complex)를 형성한다.
Waterhardness 는 보통 물 시료를 pH 10으로 완충시키고 EBT 지시약을 가한 후 EDTA 적정으로 측정한다.
1. Brief Explanation on Business Idea
We planned a Café for seniors. Korean Society is rapidly getting older. An aging society is not just a term appears in article, but the reality that we must face. But there are barely any places for seniors especially aged between late 50s and 60s. From this, we came up with an idea for Senior Café. Our basic concept is “A café as a s
1. Introducing of bottle water ‘오(O:EAU)’
O:EAU is SPC’s Paris Baguette. SPC is a company that is in charge of distribution for Baskin Robbins, Dunkin Donuts, Paris Croissant, and Samrim Foods. The current price of the product O:EAU is $1(1000won) per a 450ml bottle.
O:EAU well known for its distinctive design is designed by the designer, Karim Rashid, one of the top 3 industrial desi
제 1 장 서론 및 실험목적
1. 서론 및 실험 목적
Powder process를 이해하기 위해 변수, 미세구조 그리고 금속의 특징 등의 관계를 분석한다. 또한 실험 변수와 절차, 과정에 대한 이론을 알고 이를 토대로 측정값을 분석하여 결과를 도출해낸다. 이때, 실험 변수에는 분말크기, 압력의 크기, sintering 시간,
0. Summary
Glaceau Vitamin Water owned by Coca Cola is currently focusing on 10-20s female customers for launching their innovative advertisement. With the fresh image of “water with vitamin,” it became a symbol of modern and healthy oriented life. They had efficiently used story telling marketing method, use publicity and did personal selling in streets at Kangnam station and Garosu-Gill wh
Q1-a
Select a product category where most brands seem to be pretty much the same
Describe some ways to differentiate that offering
Bottled water
Reason We Chose ‘Bottled Water
Various Brands Exist
But We Buy the Cheapest!
How to Differentiate
Premium Trend
Develop the deeper product line
Add more benefits
E.g.. Awakening, refreshing, relaxing, slimming and etc.
Sele
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
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
Second, the certainty of Pulmuone Waters’ profitability in the long run is proved by its financial statements. Income statements in (Figure 2) show that sales revenue of Pulmuone Waters has increased 134%. Which is from ₩34,543,000,000 in 2008 to ₩46,357,000,000 in 2010. It is a high number of figures comparing to its competitors. For instance, Jinro&Hite has increased its revenue 1
Distinguished by glass transition point Tg
Glass-like hard phase -> Robber-like soft phase
Distinguished by melting point Tm
Highly tangled polymer chain – Semi crystalline