Seismic response and design of steel structures, with an emphasis on understanding and simulating extreme limit states such as fracture, fatigue, and collapse. To achieve this, his research addresses structural performance at the material, component, as well as the building scales. His work involves a combination of large and small scale testing, along with computational simulation and analytical modeling. Some of his recent and ongoing research topics include: (1) Fracture reliability of welded column splices, (2) Seismic performance of column bases, (3) Continuum models for fracture in steel structures, (4) Simulation of localization phenomena in beam-column elements.
Linda P. B. Katehi
Professor Katehi is an expert in the areas of development and characterization (theoretical and experimental) of microwave, millimeter printed circuits; the computer-aided design of VLSI interconnects; the development and characterization of micro-machined circuits for microwave, millimeter-wave and sub-millimeter-wave applications including MEMS switches, high-Q evanescent mode filters and MEMS devices for circuit re-configurability; the development of low-loss lines for sub-millimeter-wave and terahertz frequency applications; theoretical and experimental study of uniplanar circuits for hybrid-monolithic and monolithic oscillator, amplifier and mixer applications; theoretical and experimental characterization of photonic band-gap materials.
M. Levent Kavvas
Mathematical modeling of the integrated hydrologic-atmospheric processes at global, continental, country and watershed scales for the simulation and prediction of hydrologic water balances toward quantifying phenomena such as floods and droughts; mathematical modeling of hydrologic processes at regional, watershed and hillslope scales; investigations on the mathematical modeling of contaminant transport by inland surface waters, unsaturated flow and groundwater flow, and physical hydraulic modeling of environmental fluid flows.
Applies and advances the methods and perspectives of Industrial Ecology to understand and reduce the environmental effects of transport, civil infrastructure, energy, and agricultural systems. Specific research and teaching interests include life cycle assessment and other structured environmental assessment methods, and the development of new methods for carbon accounting.
Ian M. Kennedy
Nanotechnology, nanoparticle synthesis, biosensors, aerosol formation, health effects of aerosols.
The main focus of research interest is determination, prediction, and tuning of the charge carrier concentration and mobility at interfaces in nano-structured conducting solids. Based on the precise knowledge of the controlling parameters the goal is to develop next generation electrochemical devices such as fuel cells, batteries and supercapacitors by utilizing/manipulating the electrical nature of the interfaces in the functional materials.
Wastewater treatment, waste to energy, developing world systems and global health.
The study of urban and regional air quality problems with an emphasis on the size and composition of atmospheric particles and gas-to-particle conversion processes.
Collaborative, interdisciplinary research exploring the electronic and optical properties of supramolecular structures. The application of optical and electronic techniques to investigate the organization and self-assembly present in biological systems, and the extension of ideas to new device concepts.
Research program focuses on understanding protein structures. He is interested in characterizing their shapes, and uses this information to improve our understanding of their stability (ProShape). He is also interested in characterizing the subset of sequence space compatible with a protein structure: this is an indirect approach to understanding protein sequence evolution (ProDesign) . In parallel, he is involved in the development of new algorithms for predicting the structure of a protein, based on its sequence (ProModel). Dr. Koehl will also have a research appointment with the Genome Center.
Turbulence modeling, turbulent combustion, numerical fluid mechanics.
Brian H. Kolner
Bio-inspired engineering, control and dynamical systems, human-machine systems, robotics, cyber-physical systems, networked systems, complex data analysis, and machine learning.
Denise M. Krol
Research interests are in optical materials, optical waveguides, nonlinear optics and laser spectroscopy. Currently research projects in my group focus on fs laser-processing and spectroscopy of micro- and nanostructured materials with applications in optical signal processing, data storage and bio-sensing and –imaging.
Direct Measurements of Biological Membrane-Membrane Interactions, Ligand-Receptor Interactions, Polymer Thin-Films, and Small Angle Scattering Studies of Interfacial Films.
Electronic and Magnetic materials are an active field of research due to their various applications ranging from memory and data storage to sensors and modulators. Manipulating phase transitions or magnetization using temperature, voltage, laser, strain forms the heart of these applications. We use X-ray techniques to image and understand the response of electronic and magnetic materials to the application of voltage, temperature and laser. Especially laser excitation allows us to reach femtosecond-nanosecond timescales, providing us with a unique method to image the phase transition or switching dynamics in these materials and manipulate physical properties on ultrafast timescales.
Structural dynamics and earthquake engineering, multiple hazards and extreme loading (blast, impact, fire), inelastic modeling of structural systems.
Bruce L. Kutter
Geotechnical engineering; Centrifugal modeling of geotechnical structures.