July 13–17, 2013
41
Sunday Night
SPS12: 8-10 p.m. Forced Vibration of Nonlinear Oscillator
System
Poster – Zeyang Shen, Southeast University, No. 2 Southeast University
Road, Nanjing, Jiangsu 211189, P. R China;
Linear harmonic oscillator is a classical model for simple harmonic vibra-
tion. When applied by an external force with a stabilized frequency, the
closer the frequency of the external force comes to natural frequency of the
oscillator, the larger amplitude can be observed. For non-linear harmonic
oscillator system, numerical results show something distinguishing. The
ball which is set between two springs, moves in a frequency identical to
the frequency of the external force applied to the system. By increasing
the frequency of the external force from very small, the ball vibrates with
an increasing magnitude of amplitude. When the frequency reaches to a
certain level, a jump can be clearly seen on the amplitude of the ball. A
realistic experiment is being conducted to verify the results.
SPS13: 8-10 p.m. Theoretical Calculation of a New Type
Superconductor
Poster – Jingrong Ji, Southeast University, No. 2 Southeast University Road,
Nanjing, Jiangsu 211189;
Human beings have been exploring superconductors with critical tem-
perature at room temperature since the discovery of the super-conduction
phenomenon about one hundred years ago. Although the superconductors
have some profound and lasting significance in many fields, there are still
various factors that will limit the superconductors from being widely used
in our daily life in each period of the research process. This thesis is based
on the pre-existing superconductivity theories and improves the calcula-
tion formula about the transition temperature about the superconductors
and puts forward a new type of superconductor: metal-copper-based-iron-
based superconductor material and calculates the formula and simulates
the molecular structure of this kind of superconductor material with these
theories so that we can get a special kind of superconductor with the criti-
cal temperature at an even higher temperature. We hope this research can
broaden our train of thought of discovering this potential material and
help us find the superconductors that can be widely used in our daily life.
Session to Honor the Contributions of
Bob Fuller to Physics Education
Come and hear four invited speakers talk about their unique working and personal
relationships with Robert G. Fuller (1935-2012), the leader of the Research in Physics
Education Group (RPEG) in the Department of Physics and Astronomy at University
of Nebraska, Lincoln, from 1989 to 2005. He became a full-time emeritus professor in
the spring of 2005.
He is also recognized for his books,
A Love of Discovery: Science Education – The
Second Career of Robert Karplus
and
College Teaching and the Development of
Reasoning.
Monday, July 15
1:30–3 p.m.
Grand Ballroom I
Robert G. Fuller
Monday, July 15
7–8 a.m.
Skyline III, 23rd floor
First Timers’
Gathering
Portland
Learn more about
AAPT
and the Summer Meeting
High School Physics Teachers Day
attendees are encouraged to
check in at this event!
