School of Engineering
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Assistant Professor of Mechanical Engineering and, by courtesy, of Computer Science
Current Research and Scholarly InterestsHuman Computer Interaction, Haptics, Robotics, Human Centered Design
Sr Research Engineer
BioDerek Fong's research in environmental and geophysical fluid dynamics focuses on understanding the fundamental transport and mixing processes in the rivers, estuaries and the coastal ocean. He employs different methods for studying such fluid processes including laboratory experiments, field experiments, and numerical modeling. His research projects include studying lateral dispersion, in stratified coastal flows, the fate and transport of freshwater in river plumes, advanced hydrodynamic measurement techniques, coherent structures in nearshore flows, bio-physical interactions in stratified lakes, fate of contaminated sediments, and secondary circulation and mixing in curved channels.
Derek teaches a variety of classes at both the undergraduate and graduate level. Some of the classes he has offered include Mechanics of Fluids; Rivers, Streams and Canals; Transport and Mixing in Surface Waters; Introduction to Physical Oceanography; Mechanics of Stratified Fluids; Dynamics of Lakes and Reservoirs; Science and Engineering Problem Solving using Matlab; the Future and Science of Water; Hydrodynamics and Geophysical Fluid Dynamics.
Prior to coming to Stanford, Derek spent five years at the Massachusetts Institute of Technology and Woods Hole Oceanographic Institution studying the dynamics of freshwater plumes for his doctoral thesis. He has also served as a senior lecturer at the University of Washington, Friday Harbor Laboratories in Friday Harbor, Washington.
Assistant Professor of Bioengineering and of Genetics
Current Research and Scholarly InterestsThe Fordyce Lab is focused on developing new instrumentation and assays for making quantitative, systems-scale biophysical measurements of molecular interactions. Current research in the lab is focused on three main platforms: (1) arrays of valved reaction chambers for high-throughput protein expression and characterization, (2) spectrally encoded beads for multiplexed bioassays, and (3) sortable droplets and microwells for single-cell assays.
W. M. Keck, Sr. Professor in Engineering and Professor, by court, of Materials Science and Engineering
BioThe properties of ultrathin polymer films are often different from their bulk counterparts. We use spin casting, Langmuir-Blodgett deposition, and surface grafting to fabricate ultrathin films in the range of 100 to 1000 Angstroms thick. Macromolecular amphiphiles are examined at the air-water interface by surface pressure, Brewster angle microscopy, and interfacial shear measurements and on solid substrates by atomic force microscopy, FTIR, and ellipsometry. A vapor-deposition-polymerization process has been developed for covalent grafting of poly(amino acids) from solid substrates. FTIR measurements permit study of secondary structures (right and left-handed alpha helices, parallel and anti-parallel beta sheets) as a function of temperature and environment.
A broadly interdisciplinary collaboration has been established with the Department of Ophthalmology in the Stanford School of Medicine. We have designed and synthesized a fully interpenetrating network of two different hydrogel materials that have properties consistent with application as a substitute for the human cornea: high water swellability up to 85%,tensile strength comparable to the cornea, high glucose permeability comparable to the cornea, and sufficient tear strength to permit suturing. We have developed a technique for surface modification with adhesion peptides that allows binding of collagen and subsequent growth of epithelial cells. Broad questions on the relationships among molecular structure, processing protocol, and biomedical device application are being pursued.
Professor (Research) of Electrical Engineering and of Geophysics, Emeritus
BioFraser-Smith's research focuses on the use of low frequency electromagnetic fields, both as a means of probing (1) the interior of the earth, and (2) the space environment near the earth, as well as for communicating with, and detecting, objects submerged in the sea or buried in the earth, and for detecting changes taking place in the Earth and the near-Earth space environment.
Associate Professor of Civil and Environmental Engineering and Senior Fellow at the Woods Institute for the Environment
Current Research and Scholarly InterestsMy students and I study sediment and water balances in aging reservoirs, hydrologic responses and landslide risk induced by precipitation patterns in the Northern Range of Trinidad, the design of centralized and decentralized wastewater collection, treatment, and reuse systems in urban areas, and hydrologic ecosystem services in urban areas and in systems for which sediment production, transport, and deposition have significant consequences.
Professor of Civil and Environmental Engineering
BioFringer's research focuses on the development and application of numerical models and high-performance computational techniques to the study of fundamental processes that influence the dynamics of the coastal ocean, rivers, lakes, and estuaries.
Director of PBL Lab
BioDr. Renate Fruchter is the founding director of the Project Based Learning Laboratory (PBL Lab), lecturer in the Department of Civil and Environmental Engineering, and Senior Research Engineer thrust leader of “Collaboration Technologies” at the Center for Integrated Facilities Engineering (CIFE), at Stanford. She received her Civil Engineering Diploma from the Institute for Civil Engineering, Bucharest, Romania. She received her M.Sc. and Ph.D. from the Technion – Israel Institute of Technology. Her R&D focuses on collaboration technologies in support of cross-disciplinary, geographically distributed teamwork in education and corporate settings. Over the years her research team developed and deployed innovative collaboration technologies for virtual team building, synchronous and asynchronous knowledge capture, sharing and re-use, project memory, corporate memory, and mobile solutions for global teamwork and e-Learning. She is a designer of physical and virtual interactive learning and workspaces. She studies the relation between technology-people-place-process. These studies focus on the impact of technology on learning, engagement, knowledge work productivity, emergent work practices and processes, team dynamics, and assessment. She is the developer of the innovative "Architecture, Engineering, Construction (AEC) Global Teamwork" course launched in 1993 engaging university and industry partners worldwide. Her latest projects focus on: (1) big data analytics and visualization towards harmonizing occupant well-being and building sustainable performance; and (2) accelerating creativity and engagement in global teamwork through VR, AI, and parametric modeling.
Fletcher Jones II Professor in the School of Engineering
BioThe processing of complex liquids (polymers, suspensions, emulsions, biological fluids) alters their microstructure through orientation and deformation of their constitutive elements. In the case of polymeric liquids, it is of interest to obtain in situ measurements of segmental orientation and optical methods have proven to be an excellent means of acquiring this information. Research in our laboratory has resulted in a number of techniques in optical rheometry such as high-speed polarimetry (birefringence and dichroism) and various microscopy methods (fluorescence, phase contrast, and atomic force microscopy).
The microstructure of polymeric and other complex materials also cause them to have interesting physical properties and respond to different flow conditions in unusual manners. In our laboratory, we are equipped with instruments that are able to characterize these materials such as shear rheometer, capillary break up extensional rheometer, and 2D extensional rheometer. Then, the response of these materials to different flow conditions can be visualized and analyzed in detail using high speed imaging devices at up to 2,000 frames per second.
There are numerous processes encountered in nature and industry where the deformation of fluid-fluid interfaces is of central importance. Examples from nature include deformation of the red blood cell in small capillaries, cell division and structure and composition of the tear film. Industrial applications include the processing of emulsions and foams, and the atomization of droplets in ink-jet printing. In our laboratory, fundamental research is in progress to understand the orientation and deformation of monolayers at the molecular level. These experiments employ state of the art optical methods such as polarization modulated dichroism, fluorescence microscopy, and Brewster angle microscopy to obtain in situ measurements of polymer films and small molecule amphiphile monolayers subject to flow. Langmuir troughs are used as the experimental platform so that the thermodynamic state of the monolayers can be systematically controlled. For the first time, well characterized, homogeneous surface flows have been developed, and real time measurements of molecular and microdomain orientation have been obtained. These microstructural experiments are complemented by measurements of the macroscopic, mechanical properties of the films.