Recent News from the Gladden Group
- August 2014
I was asked to serve on the Steering Committee of the National
Spectrum Consortium (NSC). The NSC aims to be a
partnership between industry, academia, and the government to make
better use of the telecommunications spectrum for wireless
applications through research collaborations, policy, and business
partnerships.
- Spring 2014
I was elected to Chair the Physical
Acoustics Technical Committee of the Acoustical Society of
America and as a "Member at Large" for the Group
on Instrumentation and Measurement Science of the American
Physical Society.
- February 2014
In the Spring of 2013, I was asked to serve as the Interim
Director for the National
Center for Physical Acoustics at the University of
Mississippi. After a formal search, I was selected to be the
permanent Director in the Winter of 2014. The NCPA is a wonderful
resource for the international acoustics community and the
University and I am proud to help guide this organization into
it's future.
- October 2011
1. The details for the 2012 Physical Acoustics Summer School are
posted! See the details here...
2. Rasheed Adebisi is scheduled to defend his PhD thesis on
Resonant
Ultrasound Spectroscopy Studies of Metallic Hydride Systems in
November
2011 - Good luck Rasheed!
- Jan. 2011
Over the Fall 2010 several new papers have come out of our lab:
1. G. Li and J.R. Gladden,
High Temperature Resonant
Ultrasound Spectroscopy: A Review, invited paper for Int.
J. of Spectroscopy, 206362, (Dec 2010)
[doi:10.1155/2010/206362]. [web,
PDF]
2. J.R. Gladden, C.E. Skelton, J. Mobley,
Shear waves in viscoelastic
wormlike micellar fluids, J. Acoustical Society of
America - Express Letters, 128
(5), (June 2010). [DOI: 10.1121/1.3492794] [web,
PDF]
-- Another important event is my graduate student Rasheed Adebisi
has
passed his perspectus and is well on his way to completing his
thesis
on High Temperature and Pressure Resonant Ultrasound Spectroscopy
Studies of Palladium Hydrides. Congrats Rasheed!
-- A significant effort over the fall was preparing for the 2nd
Pan-American/Iberian Meeting on Acoustics in Cancun Mexico at
which I
delivered 3 papers on: shear waves in wormike micelle fluids, high
temperature methods in RUS, and impulsive excitation of normal
modes in
a cylinder.
-- In early February I will be making a recruiting trip to 5
colleges
and universities in TN and AR. I have posted some powerpoint
slides which highlight our department and recent research efforts
by
our various groups. The slides can be downloaded here. [ PDF
(17MB)]
- July 2010:
I have put together a web page summarizing my tenure
application portfolio. If you want to see a synopsis of my
professional life, this is a good place to look.
We also have several journal papers coming out this summer.
Preprints will be posted as they are available.
1. Physical Review B paper coming out soon on the high temperature
elastic moduli of the thermoelectric material silicon germanium in
which we see signatures of dopant precipitation. Phys. Rev. B 82,
045209 (2010). [download]
2. An invited review paper for the International Journal of
Spectroscopy on high temperature resonant ultrasound spectroscopy.
3. A JASA Express Letter on shear wave propagation in viscoelastic
worklike micelle fluids.
- April 2010:
I organized the first annual Physics Spring Fling Demo Show at
Fulton
Chapel. We put on about 1 hours worth of demos for the community
and had about 10 more demos setup for people to play with
afterwards. We had about 150 show up and everyone seemed to have
a great time! [ download
video (25MB) ].
- March 2010:
Congratulations to DR. Guangyan Li! Guangyan successfully
defended his Ph.D. thesis and will officially graduate in May.
Guangyan will be moving on to a post-doc position in biomedical
ultrasound at Indiana University working with Dr. Jim McAteer. We
will
miss him in the lab and wish him the best of luck.
- October 2009:
- The big Physics
Dept. Halloween Extravaganza
will be held on Friday 10/30 from 7:00 - 10:00! There will be
hands on demos, liquid nitrogen icecream, and I'll be running
a series
of demo shows in the big lecture hall. Don't miss it!
- I
presented a paper to Project Listen Up at the Acoustical
Society of
America meeting. The paper outlined the construction of a
simple
and inexpensive apparatus for demonstrating 2D resonances in a
circular
elastic membrane.
I have put together a web
page with related materials.
- I gave a colloquium at Indiana University on wormlike
miceller fluids.
- We
began a new project on the development of super rugged and
flexible
acoustic sensors. This project is funded by ARDEC, part of the
DOD.
- July 2009:
A paper we have recently published in the Journal of the
Acoustical Society of America (JASA) [PDF]
has been selected for republication in the Virtual Journal of
Nanoscience and Technology (Virt. J. Nan. Sci. & Tech. 20 (4),
July
2009). This paper reports speed of sound and acoustic attenuation
in
multiwall carbon nanotube and nylon polymer composites.
- January 2009:
I will be in Santiago, Chile at the International Congress on
Ultrasonics to give a talk on
our high temperature RUS work. A copy of my slides can be
downloaded here [ PDF ].
My graduate student Guanyan Li successfully defended his Ph.D.
perspectus! Congratulations
to him!
We are beginning a new project to study elastic moduli of
palladium
hydrides under high pressure and temperature near the triple point
in
the Pd-H phase diagram. This is a collaboration with Los Alamos
National Lab.
- November 2008:
I will be giving the "Hot Topics in Physical Acoustics" address at
the
ASA meeting in Miami (Nov. 10-14, 2008). Here is a popular version
of the section on "Cosmic
Sound Waves" [published by AIP].
I have also posted my slides from the Hot Topics talk. [ PDF
]
My graduate student, Guanyan Li, will be defending his Ph.D.
perspectus this month.