Transcript Scientific Presentations, Part 3

No matter what type of projection you use,
you must make certain decisions
What format
to choose?
What information
to include?
Included
Excluded
Include slides that accent important details
Neptune has three moons
Images
The world is warming
Results
Four warmest
years of century
1988
1987
1983
1981
Include slides that show organization
Beginning
Middle
Ending
Methods to Reduce
Sulfur Dioxide Emissions
From Coal-Fueled Utilities
Cynthia Schmidt
Mechanical Engineering Department
University of Texas
Three classes of methods exist for reducing
emissions of sulfur dioxide
pre-combustion methods
combustion
methods
post-combustion
methods
The most effective combustion method
is an atmospheric fluidized bed
cleaned
exhaust
90% removal capability
separator
low capital cost—able to
use in existing equipment
high operating cost
ability to use different
grades of coal
grid
air
inlet
In summary, by using these methods,
coal utilities can greatly reduce SO2 emissions
coal cleaning
40%
40%
coal switching
80%
fluidized bed
90%
95%
absorption
80%
adsorption
25
50
75
Percentage Reduction of SO2
Questions?
Exclude details that the audience
does not need or cannot remember
Avoid filler information
Avoid long lists
• Corrosion
• Acid rain
• Toxic materials
• Pulsed combustion
• Energetic materials
• Pyrogenic materials
• Smog
Roentgen discovered x-rays
in 1895. He found that a
cathode-ray tube produced
fluorescence in a distant platinum-barium-cyanide screen.
Avoid complex images
DEARATOR
B
A
RGF
HOT
WELL
Presentations can be viewed
from three stylistic perspectives
Structure and
Speech
Supply plenums for each liner panel allow
for independent flow control
Visual Aids
Delivery
Archives, Cal-Tech
Delivery is the speaker’s interaction
with the audience
Cal-Tech
Cal-Tech
AIP
Voice
Movement
Stage Presence
You have several choices for how you deliver
your speech
Memorizing the Speech
Reading From a Text
+ allows eye contact
- difficult for long speeches
- room for precision errors
- no room for improvising
+ ensures precision
- does not sound natural
- no room for improvising
- hinders eye contact
Winging It
Speaking From Slides
+ sounds natural
- has much room for error
+ insures organization
+ allows eye contact
+ allows improvising
- some room for error
In summary, another way to approach presentations
is to focus on three critical steps for success
AIP
Cal-Tech
Cal-Tech
Know the subject
Be genuinely enthusiastic
about the subject
Have an acute awareness
of the audience