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...?Order 506156 Partition **coefficient** log p (scientific lab report) Instruction: Paraphrase Deadline: 02-25 Introduction Partition **coefficient** isthe ratio of two-phased solute concentration. As a constant, it is defined as the concentration of solute in solvent A (CA) divided by the concentration of solute in solvent B (CB) expressed in this formula: P = CA / CB . A solute is a soluble component mix with immiscible liquids to achieve equilibrium of constant temperature. In an experiment, researchers used oil and water as solvents and salicylic acid was used as solute. The latter determined the partition **coefficients** between a non-aqueous phase (oil) and an aqueous phase (water). Thru partition, **coefficient** was expressed...

4 Pages
(1000 words)
Essay

...? Statistics Number The Use of the Spearman Rank Correlation **Coefficient** by Messina et al. It is a fact that in statistics the Spearman’s rank correlation **coefficient** (SRCC), also known as the Spearman’s rho, is greatly used. This provision derives its name from Charles Spearman and may be denoted by symbols rs or P. Maturi and Abdelfattah (2008) clearly explain that as a non-parametric measure used to gauge statistical independence that may exist between two variables, the Spearman’s rho is used to assess the most appropriate way of describing two variables through the use of a monotonic function. The Spearman’s rho is used mostly when both independent and dependent variables are ordinal, or when one of the variables is a continuous one...

3 Pages
(750 words)
Term Paper

... of Phoenix Real E Research Dr. Jon Webber Sender Aug 30, Analysis of Correlation **Coefficient** and Confidence Intervals
In the data set, we have considered price as the dependent variable, and the other variables as the independent variable. The correlation **coefficient** indicates the nature of relationship between the various variables. A positive **coefficient** indicates that the two variables are positively related and the dependent variable has a direct dependence on the independent variables. The 95% confidence interval indicates the range between which r will lie in 95% of the samples. First we calculate the normalized **coefficient** which is represented as z using Fishers z transformation. It is calculated as:
S.E of z =
Upper Limit...

2 Pages
(500 words)
Essay

... = density of specimen
ρs = ____- ρc ρa______
C (ρc – ρa) – ρc
= __________- (0.946 g/cm3) (0.841 g/cm3)________
(0.746) (0.946 g/cm3 - 0.841 g/cm3) - 0.946 g/cm3
ρs = 0.917 g/cm3
Question 4:
Carbon dioxide diffuses through a high density polyethylene (HDPE) sheet 50 mm thick at a rate of 2.2 10-8 (cm3 STP)/cm2-s at 325 K. The pressures of carbon dioxide at the two faces are 4000 kPa and 2500 kPa, which are maintained constant. Assuming conditions of steady state, what is the permeability **coefficient** at 325 K?
50 mm = 5 cm
Q / t = PA (P1-P2) / l
Q – quantity of permeant P – permeability A - area
t – time P1 – P2 – drop in pressure
2.21 x 10-8 cm3/ cm2-s = P (14.8038 atm... For each of the following pairs of polymers, ...

2 Pages
(500 words)
Coursework

...1. The **coefficient** of variation is a relative measure of variability. Compared to absolute measures such as the standard deviation or the mean deviation, the advantage of the **coefficient** of variation is that it can be used to compare extents of variation across samples that use different measuring units or samples that have substantially different means. For instance if there were three stores A, B and C which were located in places so that the mean weekly sales revenues were drastically different, simply comparing the standard deviations of the sales would not provide clear picture of the true differences in variability across these stores. Instead by computing the **coefficient** of variation for each store and comparing these would actually...

1 Pages
(250 words)
Assignment

...**Coefficient** of Variation and Standard Deviation Submitted to, Submitted By, of the Submitted on, [June 17th,
INTRODUCTION
The average is a good measure to represent data. However, the dispersion of values signifies the authenticity of mean or average. Generally, for a highly dispersed set of values the mean is not a good representative measure.
STANDARD DEVIATION
One of the measures of dispersion is standard deviation. This most widely used measure describes average distance of each value from mean. Below is the formula for standard deviation.
The stepwise narration of the process would be,
1. Take out the difference between each value and mean by subtraction.
2. Square each calculated difference value.
3. Add up all...

1 Pages
(250 words)
Assignment

...Your full full March 07, The **Coefficient** of Determination The **coefficient** of determination is a value that statisticians use to analyze and interpret the differences that occur in any particular variable due to the differences in some other variable. R2 or R squared is the symbol used to denote the **coefficient** of determination because it is the square of correlation value. For example, if there are two score sets on Tests A and B, and they meet somewhere at 0.3, then the **coefficient** of determination will be 0.09. The **coefficient** of determination is used to determine the accuracy of regression. There is a direct relationship between the **coefficient** of determination and the **coefficient** of correlation, which is used to reflect the linear...

1 Pages
(250 words)
Essay

...**Coefficient** of Thermal Expansion Measurement using Dilatometer Summary **Coefficient** of thermal expansion for three metals (Aluminum, Brass, Steel) wascarried out using Dilatometer. It has been found that Aluminum has the highest CTE followed by brass and steel. Large error was encountered in readings for Aluminum. Reasons for same have been discussed separately.
Table of Contents
Introduction 2
Theory 2
Description of Apparatus 2
Test Procedure 3
Experimental Data 3
Graph 5
Sample Calculation for Brass 6
Sample Calculation for Steel 6
Sample Calculation for Aluminium 7
Accuracy of results 7
Conclusion 8
Introduction
Objective of the subject experiment is to measure, both, graphically and numerically, **coefficient** of thermal expansion...

6 Pages
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Coursework

...Explain the extent to which unemployment is a microeconomic as opposed to a macroeconomic problem, and discuss the relevance of this analysis for government policy to reduce the rate of unemployment.
Name:
Roll No:
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Teacher:
Date: 26th April 2009
University
Explain the extent to which unemployment is a microeconomic as opposed to a macroeconomic problem, and discuss the relevance of this analysis for government policy to reduce the rate of unemployment.
Introduction
One important goal of microeconomics is to analyse market mechanisms, which establishes relative prices of goods and services and allocation of resources limited by nature among the alternative uses of these goods and services. Microeconomics steps... the extent...

6 Pages
(1500 words)
Assignment

The maximum elevation of the catchment area is 515.6 m., while the minimum elevation is 80.8 m (CEH Wallingford. 2005).

Based on the rainfall and river data for River Cynon given in the assignment brief, a hydrograph was developed using Microsoft Excel (2003). This hydrograph depicts the hourly observations of rainfall and river stage height for a four-day period from October 12 to October 15, 1998. Rainfall height is shown as a vertical bar graph plotted on an hourly time series in millimetre. River discharge is superimposed on the same time series as a line graph in terms of 1 x 10-1 (Bv), where B is the base of the river cross-section in meter and v is the given velocity of flow at 4 m/s.

As reflected in F...

9 Pages
(2250 words)
Report

...
Introduction
Partition **coefficient** is the ratio of two-phased solute concentration. As a constant, it is defined as the concentration of solute in solvent A (CA) divided by the concentration of solute in solvent B (CB) expressed in this formula: P = CA / CB .
A solute is a soluble component mix with immiscible liquids to achieve equilibrium of constant temperature.
In an experiment, researchers used oil and water as solvents and salicylic acid was used as solute. The latter determined the partition **coefficients** between a non-aqueous phase (oil) and an aqueous phase (water). Thru partition, **coefficient** was expressed with the concentration in the non-aqueous or lipophilic phase as the numerator. This was expressed in a formula “P = Coil...

7 Pages
(1750 words)
Research Paper

... country among all the developing countries and dominates an important role in the most recent globalization wave. From the figure 1, we can see that the GDP of China has been significantly increasing to an unprecedented rate and the rate has maintained 12% growth annually in the global economic integration decade. The rapid economic growth in China captures the world’s attention especially after the economic reform and openness policy in 1978 as the Trade, exports and imports have enormously gone up (Refer to Figure 2). Perhaps like other developing countries, China has been experiencing an increase in economic inequality accompany with the global economic integration. As shown in figure 3, the Gini **coefficient** from 1978-2008 presents...

11 Pages
(2750 words)
Research Paper