Graduate Thesis Seminar -...
Transcript of Graduate Thesis Seminar -...
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Graduate Thesis Seminar (Presenting your research)NING XIANG
GRADUATE PROGRAM IN ARCHITECTURAL ACOUSTICS, SOA
RENSSELAER POLYTECHNIC INSTITUTE, TROY, NEW YORK
Greene 204, Jan. 11th 2019
Program in Architectural Acoustics
Plan for Success
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Do rigorous research More research more confidence
More research more passion
Know your audience Different event different audience
Regular attending conferences
Think of your audience
Program in Architectural Acoustics
Plan for Success
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Plan for time limit 45 min, … 15 min, 10 min, 7-5 min
Fit under the time limit
Use available technology Animations in PPT, video clips, sound samples, visual components
Basic components without them??
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Exact
Plane waveexcitation
300 Hz, 3 m(Degree)
Program in Architectural Acoustics
Soundscape Augmentation
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Binaurally augmented
Binaurally recorded C38
C37
C36
C32
C33
C34
C35
Dummy head
Program in Architectural Acoustics
Plan for Success
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Shaping a solid structure Logical, well-organized structure Introduction /Outline
Body: concise
Conclusion/summary: very sparse!!
Rehearsal / Practice In front of mirror, a group of friends
Should not memorize
Some like to film, some not
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Plan for Success
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Presenter’s success Soft voice??Monotonic voice??
Looking back to screen all the time??
Looking at the screen all the time??Speech patterns:
Animated speaker
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Legible Slides
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Legible fonts, lines Legible in large distance
Choose easily legible fonts
Sufficiently larger line spacing
Which one of fonts: Legible in large distance
Legible in large distance
Legible in large distance
(Arial bold 36)
(Arial 36)
(Times New Roman 36)
Program in Architectural Acoustics
Legibility in Large Distance
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Legibility in Large Distance
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Legible Fonts
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Research content more important than fonts
Not legible content Nothing!
Artistic slides Clear legibility
(Calibri 54)
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Bad Line Spacing
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Legible fonts, lines Legible in large distance Choose easily legible fonts Sufficiently large line spacing
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Good Line Spacing
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Legible fonts, lines
Legible in large distance
Choose easily legible fonts
Sufficiently LARGER line spacing
Program in Architectural Acoustics
Slide Background
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Dark background:
artistic
cool
Disadvantages:
heavily replying on darkened room
switch-off light not always possible
making audience sleepy
Program in Architectural Acoustics
Figures / Line Thickness
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Figures / Line Thickness
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350 Hz3 m
Program in Architectural Acoustics
Model and Data
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Bayesian estimation:
Mean pore size = 0.5 mm
Porosity = 0.3855
Tortuosity = 1.1665
Sds = 0.3827
Thickness = 40 mm
(known)
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Program in Architectural Acoustics
Parameter PriorsDepth 1(cm)
.58
.56
.57
Porosity 1(%)
1.46
1.51
1.562.09 2.182.14 Depth 1(cm
)
Depth 2(cm)
0.187 Thickness 2(mm
)
Diameter 2(mm)0.175
Two-layer MPPfrom experiment
Ways todeliver dense graphics
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Concise Slides
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Key words rather full sentences
Slide title Key words only!
Avoid dense texts extending multiple lines
(unless delivering WORD by WORD)
Using animation (appear) to break long text
Program in Architectural Acoustics
Immediate Rejection
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Too poorly written to be understood
Outside the scope of the Journal
No sufficiently thorough literature study
Substantially similar work to others and
no clue how the work differs from others
Not a significant contribution to the journal literature
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Program in Architectural Acoustics
Abstract
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Most scientists have to present important concepts, ideas and research progresses to others regularly, especially on scientific conferences. Effective presentation is one of the most important research skills — yet one many junior scientists don’t usually put a lot of effort into. This research methods seminar will provide some essential tools for learning to communicate more effectively. – N. Xiang
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Textural Remarks
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We want our journal to be excellent and to be perceived as such by others outside our discipline as excellent. We want those who are stimulated to write for JASA to continue to be so stimulated and we do not want them to be discouraged by the Journal’s aspirations for a higher degree of excellence. Rather, we encourage them to join in what is in reality a large common endeavor with each of us prodding, pulling, and cheering the others along. e want others of kindred spirit to join us, we want them to also write excellent papers, and we want them to submit such papers to our journal.
Program in Architectural Acoustics
Concluding Remarks
24 (http://symphony.arch.rpi.edu/~xiangn)
We want our journal to be excellent and to be perceived as such by others outside our discipline as excellent.
We want those who are stimulated to write for JASA to continue to be so stimulated and we do not want them to be discouraged by the Journal’s aspirations for a higher degree of excellence.
Program in Architectural Acoustics
Concluding Remarks
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Rather, we encourage them to join in what is in reality a large common endeavor with each of us prodding, pulling, and cheering the others along.
A. Pierce
We want others of kindred spirit to join us, we want them to also write excellent papers, and we want them to submit such papers to our journal.
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Program in Architectural Acoustics
RPI Hall of Fame
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Christopher Jaffe has been recognized internationally for his innovation and leadership in architectural design. Christopher Jaffe has been recognized internationally for his innovation and leadership in architectural design. Blending the worlds of art, architecture and technology, he has consulted on more than 250 performance halls, working directly with symphony orchestras and opera, dance, and theater companies worldwide.
Christopher Jaffe has been recognized internationally for his innovation and leadership in architectural design. Blending the worlds of art, architecture and technology, he has consulted on more than 250 performance halls, working directly with symphony orchestras and opera, dance, and theater companies worldwide.
Founder of the master’s program in architectural acoustics at Rensselaer, he is the recipient of the Year 2000 Honor for Collaborative Achievement Award from the American Institute of Architects and the Ellis Island Medal of Honor.
– Inducted 2003
Christopher Jaffe has been recognized internationally for his innovation and leadership in architectural design. Blending the worlds of art, architecture and technology, he has consulted on more than 250 performance halls, working directly with symphony orchestras and opera, dance, and theater companies worldwide.
Founder of the master’s program in architectural acousticsat Rensselaer, he is the recipient of the Year 2000 Honor for Collaborative Achievement Award from the American Institute of Architects and the Ellis Island Medal of Honor.
– Inducted 2003
Program in Architectural Acoustics
Handling Tables
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# Log Evidence (Np)
1 ‐26723.3 ± 0.95
2 ‐1998.0 ± 1.39
3 348.5± 1.06
4 355.9 ± 0.88
5 359.1 ± 0.79
EvidenceLayer 1 2 3
(mm) 1.56 1.56 2.20
(mm) 0.25 0.202 0.203
(%) 9.02 4.91 2.16
(cm) 3.07 3.22 3.75
t
r
d
Parameters
Program in Architectural Acoustics
Two Levels Inference
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)|(
)|()|()|(
i
iiiiii Hp
HpH,p,Hp
D
θθDDθ
);( iiH θParameter estimation:
)(
)()|()|(
D
DD
p
HpHpHp ii
i Model selection:
,1H ,2H ,3H Occam’s razorJasa & Xiang (JASA 2012)
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Exact Helmholtz Solution
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Neumann condition:
0
0)1(
00 coscos)()(l
lll rkHrkJIi
ull
rr 0
0rr
0rr
Plane wave excitation:
00
20
)1(00 coscos)()(
lll
j
l rkJerkHIi
ul
l
/ll
5.00 121
Amplitude [ exp() Bessel cos cos ]Series of ... .
Program in Architectural Acoustics
Exact Solution: Single-Sided
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Single-sidedillumination
00
Fornnnn
nn
nn
2cot
2
1
2cot
2
12
cot2
1
2cot
2
12
cot2
1
2cot
2
1
21
22
111
01 02
0 1 1st pair
2nd pair
3rd pair
Program in Architectural Acoustics
Wave-Based Modelling
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)(
1,)(
,)(1,
2
)(,1
)(,
)(,1
2
)1(,
)(,
)1(,
2
2
2
nji
nji
nji
nji
nji
nji
nji
nji
nji
ppp
ppp
ppp
Update equation:
x
tcx
2
2
2
22
2
2 ),,(),,(),,(
y
tyxp
x
tyxpc
t
tyxp
Wave equation:
y
tcy
Submission I Submission II
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Reference Style
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1. W. C. Sabine, Collected Papers on Acoustics (Harvard University Press, Cambridge, 1922).
2. C. F. Eyring, Reverberation time in dead rooms, J. Acoust. Soc. Am. 168 (1930) 217‐241.
3. C. M. Harris, Application of wave theory of room acoustics to the design of auditoriums, Annals of Physics 192.1 (1989) 59‐65.
4. D. Botteldooren, “Finite‐difference time‐domain simulation of low‐frequency room acoustic problems, J. Acoust. Soc. Am. 98 (1995) 3302‐3308.
5. M. Aretz and M. Vorländer, Efficient modelling of absorbing boundaries in room acoustic FE simulations, Acta Acust. w. Acustica 96 (2010) 1042‐1050.
6. J. H. Rindel, The use of computer modeling in room acoustics, J. Vib. Eng. 3 (2000) 219‐224.
7. L. Savioja and U. P. Svensson, Overview of geometrical room acoustics modeling techniques, J. Acoust. Soc. Am. 138 (2015) 708‐730.
8. E. N. Wester and B. R. Mace, A statistical analysis of acoustical energy flow in two coupled rectangular rooms, Acta Acustica 84 (1998) 114‐121.
9. H. Kuttruff, Room Acoustics (Elseiver, New York, 1991).
10. J. Kang, Reverberation in rectangular long enclosures with diffusely reflecting boundaries, Acta Acust. w. Acustica 88 (2002) 77‐87.
11. H. Zhang, Relaxation of sound fields in rooms of diffusely reflecting boundaries and its application in acoustical radiosity simulation, J. Acoust. Soc. Am. 119 (2006) 2189–2200.
12. F. Ollendorff, Statistical room‐acoustics as a problem of diffusion: a proposal, Acustica 21 (1969) 236–245.
13. V. Valeau, J. Picaut and M. Hodgson, On the use of a diffusion equation for room‐acoustic prediction, J. Acoust. Soc. Am. 119.3 (2006) 1504‐1513.
14. A. Billon, V. Valeau, A. Sakout and J. Picaut, On the use of a diffusion model for acoustically coupled rooms, J. Acoust. Soc. Am. 120.4 (2006) 2043‐2054.
15. Y. Jing and N. Xiang, On boundary conditions for the diffusion equation in room acoustic prediction: theory, simulations, and experiments, J. Acoust. Soc. Am. 123.1 (2008a) 145‐153.
16. Y. Jing, E. Larsen and N. Xiang, One‐dimensional transport equation models for sound energy propagation in long spaces: theory, J. Acoust. Soc. Am. 127 (2010) 2312‐2322.
17. Y. Jing and N. Xiang, One‐dimensional transport equation models for sound energy propagation in long spaces: simulations and experimental results, J. Acoust. Soc. Am. 127 (2010) 2323‐2331.
18. T. Polles, J. Picaut, M. Berengier and C. Bardos, Sound field modeling in a street canyon with partially diffusely reflecting boundaries by the transport theory, J. Acoust. Soc. Am.116 (2004) 2969‐2983.
19. J. M. Navarro, F. Jacobsen, J. Escolano and J. J. L´opez, A theoretical approach to room acoustic simulations based on a radiative transfer model, Acta acust. w. Acustica 96 (2010) 1078‐1089.
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At the End
A complete list??
Program in Architectural Acoustics
Reference Style
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At the End Show a complete list: NO!
J. Escolano, J. M. Navarro and J. J. López, On the limitation of a diffusion equation model for acoustic
predictions of rooms with homogeneous dimensions, Letter to the Editor, Journal Acoustical Society of
America 128(4), 1586‐1589 (2010).
During presentation flow Fully complete citation?
Author (Journal, year):Escolano, et.al. (JASA 2010)
Program in Architectural Acoustics
Upcoming Conferences
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Zaman, K. et al.: Cognitive loads in noise, JASA 144 (2019)
Weikel, S. et al.: Spherical harmonics, JASA 144 (2019)
Savino A. et al.: Acoustic goniometer, JASA 144 (2019)
Miller, M. et al.: Aerogel bending waves, JASA 144 (2019)
Hoeft, M. et al.: Microslit panels, JASA 144 (2019)
Ritchie, K. et al.: Porous media inversion, InterNoise 2019
Weikel, S. et al.: Spherical mic arrays, InterNoise 2019(http://symphony.arch.rpi.edu/~xiangn)
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Upcoming Conferences
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178th ASA Meeting, San Diego, CA, 2‐6 Dec. 2019
23rd International Congress on Acoustics, Aachen, GermanySept. 9‐13, 2019
Program in Architectural Acoustics
Strong Start and End
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Attractive Start
• Unusual
• Sense of humor
• Story‐telling
Unforgettable Ending
• 1‐2 take‐home messages
• Unforgettable
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Young Presenters
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Organization
Visual/Graphics
Presentation skills
Content
Originality of Concept
Quality of Work
Significance of Project
Technical Committee onArchitectural Acoustics
Description of the problem
Originality of solution
Understanding of results
Quality of slides, graphics
Verbal/written clarity
Handling of questions
Overall organization
Technical Committee onSignal Processing in Acoustics
Engagement of audience
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RPI Architectural Acoustics
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Having been around ~20 years• Reputation by excellence of grad students
• Active faculty
• High visibility
Branding ??• Unified presentation template
• Affiliation: Graduate Program in Architectural
Acoustics, School of Architecture, RPI
Program in Architectural Acoustics
Your Success Ours
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Tay, D. et al.: High‐resolution room scanning, ASA Meeting in Minneapolis, MN 2018
1st PrizeThe Student Paper Awardin Architectural Acoustics
Program in Architectural Acoustics
Concluding Remarks
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We want you to conduct excellent research
We want you to present excellently@ our school
@ job interview
@ national/ intl. conferences
We want you to bring honor back