The Story focuses on a young girl, who is sent into the forest to visit her grandmother.
When walking through the forest the protaganist hears a wolfs cry, and when faced with
the beast she cuts off its paw. She then carries the paw in a cloth to her gran
HBR Case Study: Preserve the Luxury or Extend the Brand?
Gaspard de Sauveterre shivered as he stepped out of a side entrance to his chteau. While the late
September days were still warm, he could feel autumn approaching. The 75-year-old owner of
Chteau de
MARKETING
EXCELLENCE
O2
Striking the right note
with brand extension
Marketing Excellence 2 | About The Marketing Society
About The Marketing Society
INSPIRING BOLDER MARKETING LEADERSHIP
The Marketing Society is a not-for-profit organisation owned by its
Fixing Discrimination in Online Marketplaces
In the late 1980s, law professors Ian Ayres and Peter Siegelman set out to learn whether blacks
and women got the same deals as white men when buying a new car. They trained 38 people
some white and some black,
Lab#04
Basic Discrete-Time Signals
Introduction:
A Discrete-Time signal is the one which only exists at an integer value which is quite opposite to
Continuous-Time signal. In other words, it is a time series that is a function over a domain of
integers. U
Convolution and FIR Filtering
1. Objectives:
Basic concepts of filtering.
Loading data in MATLAB
Filtering in MATLAB
2. Overview
The goal of this lab is to learn how to implement FIR filters in MATLAB, and then study
the response of FIR filters to vari
Lab#08
Impulse Response & Discrete
Time System
SHEET 1
Exercise:
Solve the exercise for following system:
D
+
x7
+
D
x[n]
D
D
Figure 3-A
P 1. Find the overall Impulse h[n] response of the system.
Description:
Code:
x=[1 zeros(1,10)]; %Input
D=[0 1]; %Unit
Lab#01
Introduction to
MATLAB
Introduction:
MATLAB is widely used in all areas of applied mathematics, in education and research at
universities, and in the industry. MATLAB stands for Matrix Laboratory and the software is built
up around vectors and matr
Lab#02
Matrix & Programming using
MATLAB
Introduction:
Matrix is a rectangular array of numbers, symbols, or expressions, arranged in rows and
columns. In MATLAB we mostly deal with the matrices. Matrix mathematics applies to several
branches of science,
Lab#05
Convolution of Discrete-
Time Signals
Introduction:
According to Mathematical Definition, Convolution is a process by which a new function is
produced by two functions which is basically the modified version of one of the original signals.
It is al
Lab#09
Convolution and
Correlation
Introduction:
To compare one reference signal with one or two signals to determine the similarities between the pair
we us convolution and correlation. If one signal is transmitted, the receiver has to determine which
pa
Lab#06
Musical Synthesis of
Sinusoidal Signals
Introduction:
Music synthesis is the technique of generating sound, using electronic hardware or software,
from scratch. Mat Lab provides such a great platform to synthesize the sinusoidal musical signals
to
Lab#10
Spectral Analysis & Filter Design
Introduction:
There are various types of filter like high pass, low pass, band pass and many more having different
functionalities. Matlab can be used to design these filters in software. We can also do spectacular
Lab#03
Two Dimensional Graphics
Introduction:
MATLAB has powerful graphic tools and can produce nice pictures in both 2D and 3D. It is also a
programming language, and is one of the easiest programming languages for writing
mathematical programs. MATLAB a
Experiment 2
Start
Dissolve 0.15g product mixture in 2 mL
dichloromethane (sample A).
Measure 5 mL pure dichloromethane to TLC
chamber.
Put a filter paper into the chamber.
Apply a spot of sample A on the TLC plate.
Chromatography
Clamp the column in vert
Appendix-II Microscale Experiments
Background
The organic chemistry laboratory course has undergone significant changes.
Some regular experiments are replaced by microscale experiments. The motivating
forces of these changes are due to the effects of chem
Exp.4 Williamson Synthesis
Dissolve potassium hydroxide in 10ml of absolute ethanol.
Add the naphthol solution to the round bottom flask.
Reflux the reaction mixture on a water bath for 1 hour.
After 1 hour, extract the mixture with 30ml of ether.
Wait fo
Exp.2 Chromatography column & TLC
Draw a sample line at about 1cm from the end of the TLC plate.
Use the capillary tube provided to spot the TLC plate.
Spot your sample on the TLC plate.
Put the spotted TLC plate into the TLC developing chamber.
The devel
Experiment 6
Start
TLC
Add 10g of CaO to the alcoholic extract.
Remove the solvent to dryness by rotary evaporator.
Use hot water to extract the Caffeine.
Add 50ml water to the dry residue,boil and hot
filtration under vacuum.
Repeat up to three times wit
Experiment 4
Williamson Synthesis
Start
Add 1.3g of KOH and 8mL of abs. EtOH in a
100mL r.b.f. Swirl till dissolve.
Place 2g 2-Naphthol + 10mL abs EtOH in a
50mL beaker. Swirl.
Add naphthol sol to
KOH sol. in the r.b.f.
Add the reaction mixture into 25ml
Experiment 5
Sodium borohydride reduction
Start
Dry the glassware.
In 100 mL r. b. flask, add 2.8g 9-Fuorenone.
In 100 mL beaker, add 0.5g sodium borohydride &
20 mL 2-propanol.
Add the sodium borohydride slurry into
9-Fluorenone
Wipe off the chemicals in
Experiment 1
I
Start
Liquid-Liquid Extraction
Separation & Isolation of the Acidic
Component.
1. Add 20mL 3M NaOH to the
separatory funnel
2. Mix and vent.
3. Remove the bottom aqueous layer.
Weight out 0.5g each of benzoic acid,
ethyl 4-aminobenzoate & 9
Exp. 3 Extraction of Caffeine from Tea
Place the finely ground tea leaves in the thimble of the Soxhlet extractor.
Use filter paper to block the opening of the thimble to prevent any
leakage of sample .
Add 130ml of ethanol and a few anti-bumping granules
Experiment 3 PART ONE
Extraction of Caffeine from Tea
Start
Weigh about 15g tea leaves and place them in the thimble.
Use filter paper to block the opening of the thimble to prevent any leakage of
sample.
Use a 250ml round bottom flask as a reservoir.
Add
CHEM2220
Physical Chemistry Laboratory II
Experiment 9: Variation of conductance with concentration(Onsagers equation)
Student Name: Leung Yan Wa
Date: 23-2-2012
Student No.: 10016449
Section No.: 2
Group No.: 6
A. Objective
1. To measure the conductiviti
Chem. 2320
Physical Chemistry Laboratory II Report
Name : Chow Chi Hang
Student No : 12008257
Section : 02001
Group No : 1
Date : 21st January,2013
Title:
Experiment 1: Inversion of Sucrose
Objective:1. To measure the angle of rotation( ) in sucrose solut
CHEM2320
Physical Chemistry Laboratory II
Experiment 9: Variation of conductance with concentration(Onsagers equation)
Student Name:Ho Yik Ki
Student No.: 11011610
Date: 1-2-2013
Section No.: 3
Group No.: 8
A. Objective
1. To measure the conductivities of
Chem. 2320
Physical Chemistry Laboratory II Report
Name : Chow Chi Hang
Student No : 12008257
Section : 2001
Group No : 1
Date : 8th April, 2013
Title:
Experiment 9: Variation of conductance with concentration (Onsagers equation)
Objective:1. To determine
International Journal of Cosmetic Science, 2005, 27, 205210
Determination of phthalate esters in cosmetics by
gas chromatography with flame ionization detection
and mass spectrometric detection
Huiming Chen, Chao Wang, Xing Wang, Nan Hao and Juan Liu
Chin
Environ Sci Pollut Res (2016) 23:18861897
DOI 10.1007/s11356-015-5444-0
RESEARCH ARTICLE
Formation of chlorinated breakdown products
during degradation of sunscreen agent,
2-ethylhexyl-4-methoxycinnamate in the presence
of sodium hypochlorite
Alicja Gacko