Meet the Experts

Find experts across Johns Hopkins involved in research and teaching related to environment, energy, sustainability and/or health. The following list is organized by the expert's last name. You can also search by area of expertise.

Learn more about the support E²SHI provides to Hopkins faculty, staff researcher or instructors.

Dennice Gayme

Assistant Professor and Carol Croft Linde Faculty Scholar, Dept of Mechanical Engineering
Whiting School of Engineering

dennice@jhu.eduFaculty Website

Research Areas:
  • Large-scale networked and interconnected systems with an emphasis on renewable and efficient energy systems. 
  • Integrating renewable power generation sources into a "smart" electric power system.

Selected Publications

Chandra, F., Gayme, D.F., Chen, L., Doyle, J.C. (2011). “Robustness, Optimization, and Architectures.” European Journal of Control, 17(5), pp. 472-482.

Gayme, D.F., & Topcu, U. (2013). “Optimal power flow with large-scale storage integration.” Institute of Electrical and Electronics Engineers, 28(2), pp. 709-717.

Yeh, H., & Gayme, D.F. (2012). “Adaptive VAR Control for Distribution Circuits With Photovoltaic Generators.” Institute of Electrical and Electronics Engineers, 27(3), pp. 1656-1663.

E²SHI-Supported Projects

Wind Integration Simulations Partnership for International Research and Education (WINDINSPIRE)

Keywords: Energy systems, Smart grid, Mechanical engineering

Shoji Hall

Assistant Professor, Dept of Materials Science and Engineering
Whiting School of Engineering

shoji@jhu.eduFaculty Website

Research Areas:

The application of mesoscopic materials for renewable energy applications.

Keywords: Renewable energy, Chemistry

Daniel Hamilton

Director, Center for Transatlantic Relations, School of Advanced International Studies (SAIS)

dhamilton@jhu.eduFaculty Website

Research Areas:

Coordinate coalition of researchers, companies, stakeholders on evolution of markets in health, low-carbon economy, and education, and potential roles for enabling technologies. Lead policy-oriented work on challenges of environment, energy, sustainability and health among advanced industrial societies. Policy implications of developments in environment, energy, etc.

Keywords: Environmental Policy, Foreign Policy, Globalization/Trade, Governance/Participation, International Policy

Lingxin Hao

Professor, Dept of Sociology 
Krieger School of Arts and Sciences

hao@jhu.eduFaculty Website

Research Areas:
  • Conducting national, longitudinal surveys in China with focus on collecting information on exposure to environmental pollution and biomarkers from respondents to measure the degree of human exposure.
  • Understand the spatial and social patterns of population exposure, and aid policy makers in the effort of reducing health risks and enhancing sustainability.
Keywords: Population exposure, Pollution, Sociology

Ciaran Harman

Assistant Professor and Russell Croft Faculty Scholar, Dept of Environmental Health and Engineering, Whiting School of Engineering
Dept of Earth and Planetary Sciences, Krieger School of Arts & Sciences

charman1@jhu.eduFaculty Website

Research Areas:
  • Relationship between landscape structure, the water cycle, and the transport and residence time of water and dissolved contaminants through the landscape.
  • Link processes across scales, to understand how the physical processes at play in the bed of a stream, or in the shallow groundwater of a hillslope, or in a small watershed, scale up to produce the integrated effects  on water supply, floods and water quality at landscape scales.
  • Using field, experimental and theoretical techniques, including stable water isotope passive tracers, active tracers including chloride injections, experimental flume work (man-made channels for water), and numerical modeling at scales ranging from inches to large river basins.

Selected Publications

Gall, H.E., Park, J., Harman, C.J., Jawitz, J.W., Rao, P.S.C. (2013). “Landscape filtering of hydrologic and biogeochemical responses in managed catchments.” Landscape Ecology, 28(4), pp. 651-664.

Patil, S., Sivapalan, M., Hassan, M.A., Ye, S., Harman, C.J., Xu, X. (2012). “A network model for prediction and diagnosis of sediment dynamics at the watershed scale.” Journal of Geophysical Research, 17, pp. F00A04.

E²SHI-Supported Projects

Sustainable building designs inspired from nest building termites: Preliminary study of the aero-thermodynamics of termite mounds

Keywords: Hydrology

Christopher Heaney

Associate Professor, Dept of Environmental Health and Engineering
Bloomberg School of Public Health

cheaney1@jhu.eduFaculty Website

Research Areas:
  • Environmental epidemiology
  • Occupational infectious disease
  • Waterborne disease
  • Climate change and health
  • Public health impacts of industrial food animal production systems
  • Local sustainable food systems
  • Environmental and health impacts of solid waste disposal practices
Keywords: Agriculture/food, Air pollution, Climate change, Environmental health, Epidemiology, Solid waste

Ben Hobbs

Theodore W. & Kay W. Schad Professor of Environmental Management, Dept of Environmental Health and Engineering, Whiting School of Engineering

Director of the Johns Hopkins Environment, Energy, Sustainability & Health Institute

bhobbs@jhu.eduFaculty Website

Research Areas:
  • Policy, planning, operations and environmental impact of energy systems.
  • Decision analysis and economics of ecosystem restoration.
Keywords: Energy markets and modeling, Air quality, Climate change, Environmental management, Environmental policy, Water

James P. Howard, II

Senior Professional Staff II / Lead Data Scientist and Service Manager
Applied Physics Laboratory

james.howard@jhuapl.eduFaculty Website

Research Areas:
  • Flood insurance
  • Water policy
  • Data science
Keywords: Environmental economics, Environmental policy, water, Risk analysis/ assessment

Eric Johnson

Associate Research Scientist, Department of Biophysics, Krieger School of Arts and Sciences

Research Areas:
  • Enhanced algal photosynthesis for biofuel and biomass production
  • Gene delivery to algae
Keywords: Energy (Renewable)

Howard Katz

Professor, Dept of Materials Science and Engineering
Whiting School of Engineering

hekatz@jhu.eduFaculty Website

Research Areas:

Sensing environmental and medically relevant vapors, organic solar cells and thermoelectrics

Selected Publications

Besar, K., Yang, S., Guo, X., Huang, W., Rule, A.M., Breysse, P.N. (2014). “Printable ammonia sensor based on organic field effect transistor.” Organic Electronics, 15(11), pp. 3221-3230.

Lecover, R., Williams, N., Markovic, N., Reich, D.H., Naiman, D.Q., Katz, H.E. (2012). “Next-Generation Polymer Solar Cell Materials: Designed Control of Interfacial Variables.” ACS Nano, 6(4), pp. 2865-2870.

E²SHI-Supported Projects

Culture-free optoelectronic signaling to detect methicillin-resistant Staphylococcus aureus (MRSA) and other bacterial pathogens by multidentate antigen-nanoparticle agglomerization from natural and designed intermolecular interactions

Agricultural and industrial ammonia (NH₃) monitoring with organic sensor circuits

Keywords: Electrical engineering, Nanotechnology, Renewable energy, Materials synthesis and characterization

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We do not inherit the earth from our ancestors; we borrow it from our children.
— Chief Seattle