Now showing items 1-10 of 42
Desorption by ultrasound: Phenol on activated carbon and polymeric resin
(Wiley Subscription Services, Inc., A Wiley Company, 1998-07)
An experimental feasibility study of using ultrasound to accomplish the dificult desorption of phenol from activated carbon and polymeric resin adsorbents is discussed. The desorption rates of activated carbon were found ...
Electromagnetic Scattering Interaction Between a Dielectric Cylinder and a Slightly Rough Surface
(University of Michigan. Radiation Laboratory, 1998-12)
Spatially -Variant Roughness Penalty Design for Uniform Resolution in Penalized-Likelihood Image Reconstruction
(IEEE, 1998-10-04)
Traditional space-invariant regularization schemes in tomographic image reconstruction using penalized likelihood estimators produce images with nonuniform resolution properties. The local point spread functions that ...
Hybrid feedback stabilization of rotational–translational actuator (RTAC) system
(John Wiley & Sons, Ltd., 1998-04-15)
A hybrid feedback control law is proposed for the RTAC system. This hybrid feedback control law is expressed in terms of a continuous feedback part and a part that includes switched parameters determined according to a ...
Sifting the Network: Performing Packet Triage with NFR
(Center for Information Technology Integration, 1998-11-23)
We describe a set of Network Flight Recorder scripts designed to detect network intrusions. After developing scripts that detect some known attacks, we focus on sifting scripts that attempt to remove "normal" traffic from ...
Scan Time Optimization for Post-injection PET Scans
(IEEE, 1998-11-08)
Previous methods for optimizing the scan times for PET transmission and emission scans under a total scan time constraint were based on linear non-statistical methods and used noise equivalent counts (NEC) criteria. The ...
Pluggable Authentication Module for Windows NT
(Center for Information Technology Integration, 1998-04-10)
To meet the challenge of integrating new methods and technologies into the Internet security framework, it is useful to hide low-level authentication mechanisms from application n programmers, system administrators, and ...
A New Generation of Antenna Structures Based on Novel Composite Materials
(University of Michigan. Radiation Laboratory, 1998-01)
Digital Topography From SAR Interferometry: Determination of and Correction for Vegetation Height
(University of Michigan. Radiation Laboratory, 1998-09)
Accelerated Monotonic Algorithms for Transmission Tomography
(IEEE, 1998-10-04)
We present a framework for designing fast and monotonic algorithms for transmission tomography penalized likelihood image reconstruction. The new algorithms are based on paraboloidal surrogate functions for the log-likelihood. ...