Clarkson University

About: Clarkson University is a education organization based out in Potsdam, New York, United States. It is known for research contribution in the topics: Particle & Turbulence. The organization has 4414 authors who have published 10009 publications receiving 305356 citations. The organization is also known as: Thomas S. Clarkson Memorial School of Technology & Thomas S. Clarkson Memorial College of Technology.

Spatial distribution of the internal and near-field intensities of large cylindrical and spherical scatterers

Abstract: Spatial distributions of the near-field and internal electromagnetic intensities have been calculated and experimentally observed for dielectric cylinders and spheres which are large relative to the incident wavelength. Two prominent features of the calculated results are the high intensity peaks which exist in both the internal and near fields of these objects, even for nonresonant conditions, and the well-defined shadow behind the objects. Such intensity distributions were confirmed by using the fluorescence from iodine vapor to image the near-field intensity distribution and the fluorescence from ethanol droplets impregnated with rhodamine 590 to image the internal-intensity distribution.

Application of Bifurcation Theory to the High-Angle-of-Attack Dynamics of the F-14

Abstract: Bifurcation theory has been used to study Ihe nonlinear dynamics of the F-14. An 8 degree-of-freedom model that does not include the control system present in operational F-14's has been analyzed. The aerodynamic model, supplied by NASA, includes nonlinearlties as functions of the angles of attack and sideslip, the rotation rate about the velocity vector, and the elevator deflection. A continuation method has been used to calculate the steady states of the F -14 as continuous functions of the elevator deflection. Bifurcations of these steady states have been used to predict the onset of wing rock, spiral divergence, and jump phenomena that cause the aircraft to enter a spin. A simple feedback control system was designed to eliminate the wing rock and spiral divergence instabilities. The predictions were verified with numerical simulations.

Stimuli-responsive hydrogel membranes coupled with biocatalytic processes.

Abstract: A nanostructured signal-responsive thin hydrogel membrane was coupled with enzyme-based systems to yield "smart" multisignal-responsive hybrid systems with built-in "logic". The enzyme systems transduce biochemical input signals into structural changes of the membrane, thus resulting in the amplification of the biochemical signals and their transformation into the gated transport of molecules through the membrane. Coupling of the biocatalytic systems with a stimuli-responsive membrane is a promising approach for the development of materials that can regulate transport and release of chemicals/drugs by receiving and processing the biochemical information via biochemical reactions.

Nonlinear interaction of traveling waves of nonintegrable equations.

Abstract: We present a new methodology for deriving physically important exact solutions of certain nonintegrable equations. These solutions describe the nonlinear interaction of traveling waves. Examples include multishock and multisoliton solutions.

DLVO Interaction between Colloidal Particles: Beyond Derjaguin’s Approximation

Abstract: Van der Waals and electrostatic double layer interactions between two colloidal particles are evaluated from the corresponding interaction energies per unit area between two infinite flat plates using a recently developed technique, the surface element integration. Application of the technique to two interacting spheres results in predictions of interaction energies that are substantially more accurate compared to the predictions based on conventional Derjaguin's approximation. The superior results of the technique compared to Derjaguin’s approximation are attributed to the more rigorous consideration of particle curvature effects in the surface element integration technique.