Stanford University
Showing 901-910 of 1,464 Results
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Reginald Mitchell
Professor of Mechanical Engineering, Emeritus
BioProfessor Mitchell's primary area of research is concerned with characterizing the physical and chemical processes that occur during the combustion and gasification of pulverized coal and biomass. Coals of interest range in rank from lignite to bituminous and biomass materials include yard waste, field and seed crop residues, lumber mill waste, fruit and nut crop residues, and municipal solid waste. Experimental and modeling studies are concerned with char reactivity to oxygen, carbon dioxide and steam, carbon deactivation during conversion, and char particle surface area evolution and mode of conversion during mass loss.
Mitchell’s most recent research has been focused on topics that will enable the development of coal and biomass conversion technologies that facilitate CO2 capture. Recent studies have involved characterizing coal and biomass conversion rates in supercritical water environments, acquiring the understanding needed to develop chemical looping combustion technology for applications to coals and biomass materials, and developing fuel cells that use coal or biomass as the fuel source. Studies concerned with characterizing coal/biomass blends during combustion and gasification processes are also underway.
Professor Mitchell retired from Stanford University in July 2020, after having served over 29 years as a professor in the Mechanical Engineering Department. -
Diana Moanga
Lecturer
BioDiana A. Moanga, PhD, is a Lecturer in the Earth Systems Program at Stanford University's Doerr School of Sustainability and serves as Manager of the Spatial Analysis Center. She teaches a comprehensive suite of geospatial courses including Remote Sensing of Land, Fundamentals of Geographic Information Science, Advanced Concepts in Geospatial Information Science, and Independent Study classes, and has been recognized with Stanford Doerr School of Sustainability's Excellence in Teaching Award in 2025.
Dr. Moanga's research centers on coastal resilience, land system science, and conservation, with expertise in GIS, remote sensing, and spatial analysis. Her work focuses on understanding land use and land cover change processes, particularly examining the effects of environmental and anthropogenic stressors on coastal systems. She is especially passionate about advancing our understanding of coupled socio-ecological systems, mapping coastal hazards dynamics and developing resilience metrics.
She earned her PhD in Environmental Science Policy and Management from UC Berkeley in 2020, where her dissertation research employed geospatial techniques to study land use and land cover changes across California. Her doctoral work explored management impacts on California's coastal lands, agricultural transitions in the Central Valley, and wildfire activity under future climate regimes. Prior to her doctoral studies, Diana completed a Master's in Marine Affairs and Policy from the University of Miami in 2015, where she examined the spatial and temporal characteristics of harmful algal blooms and studied coastal zone management and coral conservation.
Before joining Stanford as a lecturer in 2023, Dr. Moanga served as a postdoctoral researcher at Stanford University's Department of Earth System Science and previously at Florida International University's Sea Level Solutions Center. -
J. Moldowan
Professor (Research) of Geological and Environmental Sciences, Emeritus
Current Research and Scholarly InterestsOrganic geochemistry; study of molecular fossils (biomarkers) and their use in petroleum system analysis, reservoir characterization, environmental monitoring, molecular paleontology, global change, petroleum biodegradation in reservoir. Studies of thermal cracking of petroleum by deep burial or catalytic alteration in deep source rocks and reservoirs by using diamondoids. Applications to unconventional petroleun exploration and development.
