Department of Engineering Science and Mechanics
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The Department of Engineering Science and Mechanics provides a strong foundation and a sturdy framework for the discovery, development, transfer, and implementation of new knowledge in the areas of mechanics of materials and material systems, fluid mechanics, dynamics and vibration, biomechanics, and computational methods. The department is fully committed to providing an environment for strong undergraduate and graduate education that emphasizes fundamental understanding rather than specialization, highquality teaching, innovation, frontierlevel research, and service to the professional mechanics community.
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The effects of magnetic nanoparticle properties on magnetic fluid hyperthermia
(American Institute of Physics, 20101101)Magnetic fluid hyperthermia (MFH) is a noninvasive treatment that destroys cancer cells by heating a ferrofluidimpregnated malignant tissue with an ac magnetic field while causing minimal damage to the surrounding healthy ... 
Numerical investigation of flowthrough immunoassay in a microchannel
(American Institute of Physics, 20100201)Immunomagnetic separation (IMS) is a method to isolate biomaterials from a host fluid in which specifically selected antibodies attached to magnetic particles bind with their corresponding antigens on the surface of the ... 
Effects of an inplane axisymmetric magnetic field on the vibration of a thin conductive spinning disk
(American Institute of Physics, 20050515)This paper details the derivation and solution of the governing equation for linear transverse vibrations of a thin perfectly conducting rotating disk subjected to an axisymmetric inplane magnetic field having a circumferential ... 
Creep deformation of a soft magnetic ironcobalt alloy
(American Institute of Physics, 19990415)The U.S. Air Force is in the process of developing magnetic bearings, as well as an aircraft integrated power unit and an internal starter/generator for main propulsion engines. These developments are the driving force for ... 
Nonlinear modulation of TM waves in a circular waveguide
(American Institute of Physics, 1976)The method of multiple scales is used to derive a nonlinear Schrödinger equation for the temporal and spatial amplitude and phase modulations of TM waves in a perfectly conducting guide containing a nonlinear isotropic ... 
Parallel_plate waveguide with sinusoidally perturbed boundaries
(American Institute of Physics, 1974)The method of multiple scales is used to obtain a uniformly valid asymptotic expansion for the propagation of TM modes on a parallel_plate waveguide with perfectly conducting boundary surfaces that are sinusoidally perturbed ... 
Lattice thermal conductivity of a silicon nanowire under surface stress
(American Institute of Physics, 20110601)The effects of surface stress on the lattice thermal conductivity are investigated for a silicon nanowire. A phonon dispersion relation is derived based on a continuum approach for a nanowire under surface stress. The ... 
The stochastic dynamics of a nanobeam near an optomechanical resonator in a viscous fluid
(American Institute of Physics, 20131014)We quantify the Brownian driven, stochastic dynamics of an elastic nanobeam immersed in a viscous fluid that is partially wrapped around a microdisk optical resonator. This configuration has been proposed as an optomechanical ... 
A theory of electroded thin thermopiezoelectric plates subject to large driving voltages
(American Institute of Physics, 19941101)We first reduce existing equations for nonlinear thermoelectroelasticity to the case of large electric fields, small strains, and infinitesimal temperature variations. These equations are then specialized to the case of ... 
Raman and electron microscopy analysis of carbon nanotubes exposed to high power laser irradiance
(American Institute of Physics, 20090501)High power laser radiometry requires efficient and damageresistant detectors. The current study explores the evolving nature of carbon nanotube coatings for such detectors upon their exposure to incrementally increasing ... 
A modified strongcontrast expansion for estimating the effective thermal conductivity of multiphase heterogeneous materials
(American Institute of Physics, 20121201)To evaluate the effective thermal conductivity of a general anisotropic multiphase microstructure, a modified version of statistical strongcontrast expansions is formulated here. The proposed method takes into account the ... 
Unsteady nanoscale thermal transport across a solidfluid interface
(American Institute of Physics, 20080915)We simulate unsteady nanoscale thermal transport at a solidfluid interface by placing cooler liquidvapor Ar mixtures adjacent to warmer Fe walls. The equilibration of the system towards a uniform overall temperature is ... 
Population difference of two_level atomic system due to a running pulsed field
(American Institute of Physics, 1975)The method of multiple scales is used to derive an expression for the population difference in an absorbing atomic system due to a running pulsed field. The main contribution to this expression comes from a quasi_steady_state ... 
Optical resonance of a two_level atomic system
(American Institute of Physics, 1976)The method of multiple scales is used to derive a solution of the damped optical Bloch equations of a two_level atomic system due to a strong pulsed field. The time dependence of the oscillations of the atomic inversion ... 
Breakdown of structural models for vibrations of singlewall zigzag carbon nanotubes
(American Institute of Physics, 20090915)Free vibrations of zigzag singlewall carbon nanotubes (SWCNTs) of aspect ratio (length/diameter) similar to 6 and with ends tractionfree have been studied using molecular mechanics (MM) simulations with the MM3 potential. ... 
On the acoustics of a coupled space
(Acoustical Society of America, 19840301)An examination of acoustic wave propagation in a coupled space is presented. The analysis presented is limited to the first two longitudinal modes of the cavity. It is shown that the spacial behavior of the modes of vibration ... 
Dissipative structure of shock waves in fluids having large specific heat
(Acoustical Society of America, 1987)Recent studies indicate that the nonlinearity parameter 1 + B/2A may become negative in fluids whose specific heats are sufficiently large. The present study examines the dissipative structure of weak shocks in such fluids ... 
Response to 'Comment on Linear inviscid wave propagation in a waveguide having a single boundary discontinuity: Part II: Application [J. Acoust. Soc. Am. 75, 356362 (1984)]'
(Acoustical Society of America, 19861001)This paper addresses the comments of Dr. Bruggeman and Dr. van de Wetering. The source of the error present in the paper entitled "Linear inviscid wave propagation in a waveguide having a single boundary discontinuity: ... 
Acoustic wave propagation in a circular cosh duct carrying a mean flow
(Acoustical Society of America, 19870901)An analysis of acoustic wave propagation in a waveguide carrying an incompressible mean flow is presented. The radius of the waveguide is taken to vary slowly as a function of axial location. It is shown that the dynamic ... 
Random vibration of laminated plates modeled within a highorder shear deformation theory
(Acoustical Society of America, 19880901)This article deals with the dynamic response of simply supported, symmetric crossply laminates to stationary random load. The theory of laminated plates used here takes into account transverse shear flexibility, transverse ...