Mẫu Powper Point

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Michael Alley

College of Engineering

Penn State

July 24, 2007

Slide Template for

Scientific Presentations



NameName

Name

Department

Institution

Date

Key image for introducingtalk’s scope, importance, or

background

Logo

Title of Presentation in Initial Capitals:

32 or 36 Points, Arial Bold



3

Katrine Aspmo

Torunn Berg

Norwegian Institute for

Air Research

Grethe WibetoeUniversity of Oslo,

Dept. of Chemistry

June 16, 2004

Atmospheric Mercury Depletion Events

in Polar Regions during Arctic Spring



4

Topic 1

Image forTopic 1

Topic 2

Image for

Topic 2

Topic 3

Image for

Topic 3

Logo

This presentation focuses on… (complete sentence,

but go no more than two lines)



5

This talk traces what happens to mercury after it

depletes from the atmosphere in arctic regions

Theory for mercury cycling

Measurements from the

Zeppelin Air Monitoring Station

Environmental implications



6

If necessary, identify key assumption or background

for audience—keep to two lines (18 –24 point type)

Image(s)

supportingabove assertion

Logo

This sentence headline makes an assertion on

the first topic: 28 points, no more than two lines



7

Fragments quickly outpace the blast wave, and

become the primary hazard to personnel



8

Call-out, if necessary:

keep to one or two lines

Image or equations supporting

the headline assertion

Logo





This sentence headline makes an assertion on the

second topic: 28 points, no more than two lines



9

Reynolds Number

Nuo, f o

TwallTinletHeat Flux, q˝

h

Nu

Tbulk

Friction

Factor, f

Pressure Drop

22 bulk air

htap

u x

DdP f

4.08.0

0 Pr Re023.0 Nu

2.0

0 Re046.0 f

air

h

k

Dh Nu

Pressure Taps ThermocouplesVenturi Meter Voltmeter

Normalized friction factors and Nusselt numbers

correlated our data with the data of others



10

Physical space Fourier space

n

Change of variable to

eliminate linear terms

n

n̂

Apply filters to specific

wavelengths

Compute m’th spatial derivative

by multiplying with (ik)m

nmik ̂)(

m x

nm

Reverse change of variable

1n

1n

March one time step with Runge Kutta

In pseudospectral methods, some operations

are carried out in Fourier space



11

Supporting point, if needed

Supporting point, if needed:

parallel to first point

Image supporting above

assertion

Logo

This sentence headline makes an assertion on

the third topic: 28 points, no more than two lines



12

Our work shows that atmospheric mercury depletion

events lead to increased mercury in surface snow



13

Advantages

Easy to shape

Light in weight

Resistant to corrosion

Disadvantages

Low conductivity

High cost (at present)

Composite materials are ideal for polar plates



14

Supporting point (no

more than two lines)

Another supporting point

(parallel to the first)

Image thatsupports

conclusion

Questions? Logo

In summary, this sentence headline states the most

important assertion of the presentation



15

Wires not harnessed to prevent

contact with housing

In summary, the unit failed because of a short-

circuit created by abrasion of wire insulation

Questions?

Wire abraded against housing,

exposing conductor

Short circuit to ground created

where wire contacted housing

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