A5047810904- Infrastructure Resilience and Vulnerability Analysis
- Risk and Safety Analysis
- Hybrid Renewable Energy Systems
- Supply Chain Resilience and Risk Management
- Disaster Management and Resilience
- Global Energy and Sustainability Research
- Algal biology and biofuel production
- Ammonia Synthesis and Nitrogen Reduction
- Biofuel production and bioconversion
- Forest Biomass Utilization and Management
- Energy and Environment Impacts
- Flood Risk Assessment and Management
- Hydrogen Storage and Materials
- Probabilistic and Robust Engineering Design
- Traffic and Road Safety
- Regional resilience and development
- Facility Location and Emergency Management
- Wind and Air Flow Studies
- Catalysts for Methane Reforming
- Advanced Battery Technologies Research
- Ecosystem dynamics and resilience
- Human-Automation Interaction and Safety
- Technology Assessment and Management
- Environmental Impact and Sustainability
- Traffic Prediction and Management Techniques
National Renewable Energy Laboratory
2017-2020
University of Virginia
2012-2018
U.S. Army Engineer Research and Development Center
2018
Engineering Systems (United States)
2014
Life-cycle greenhouse gas (LC-GHG) emissions are a principal metric used by the U.S. Environmental Protection Agency to determine whether biofuel qualifies under EPA's Renewable Fuel Standard (RFS2). This paper identifies important factors in quantification of LC-GHG algae-derived diesel, jet fuel, and gasoline, using hydrothermal liquefaction (HTL) as case study for algal biofuels. The results indicate that, certain conditions, algae biofuels produced HTL offer an over 50% reduction...
ABSTRACT The aviation sector relies almost exclusively on petroleum‐derived fuels at the present time. Due to concerns including national security, long‐term availability of crude oil feedstock, and environmental impacts, there is an increasing interest in identifying alternatives conventional jet fuel. Viable must meet a number criteria, related quality quantity supply, cost‐competitiveness, sustainability. Priorities for diverse industry initiatives development biojet fuel are influenced...
Effective disaster preparedness and response are supported by heterogeneous investments in logistics for emergency management. Meanwhile, there may be scarce resources or misconception of humanitarian needs scenarios that unprecedented. Resource allocations to must address deep uncertainties multiple performance criteria related population behaviors, environmental change, innovative technologies, wear tear, regulations, economic markets, extreme events, others. The methods demonstrated this...
Vehicle to grid technologies (V2G) utilize the batteries in electric vehicles (EV) provide ancillary services power grid. In order maintain a 60-hertz frequency grid, there exists wholesale market for regulation (FR), specific type of service. This paper examines V2G technology providing FR, while focusing on effect FR service has battery life, state charge, and potential revenue. Fleet are prime candidates as most only active portion day. During small amount charge is drawn released from...
Natural disasters in the past decade have encouraged agencies responsible for development and maintenance of infrastructure systems toward accounting risk resilience asset management, buying down risks to economic, environmental, social objectives. A principal aim continuous management is large-scale systems. This paper adopts describes metrics models management. implements priorities three diverse classes assets—waterway navigation, hydropower, flood control—and identifies key challenges...
Capacity-building plans for transportation systems must be resilient to disruptions and erroneous assumptions protect performance outcomes as well schedule cost. An example is the future supply chain of aviation biofuels industry, government, military applications. The challenges include balancing aims diverse stakeholders, including regulators, agencies, manufacturers, airlines, fuel companies, agricultural husbandry producers. Resilience analytics strategic should characterize both...
Transportation planners address mobility, accessibility, safety, environment, and economic development on thousands of miles multimodal corridors. Improvement projects are periodically implemented with input from diverse public stakeholders. Various performance metrics data visualization used to identify prioritize locations the projects. An agency has needs for business processes opportunities threats, potential cost savings, programming conflicts across hundreds acquisition in...
Attention of industry, government, and academia has been directed toward the design implementation systems which are resilient against external internal stressors disruptions. However, less attention paid to assessing resilience these initiatives shifting strategic plans precipitated by changes in management priorities. While a particular infrastructure asset or technology may be given scenario, overriding plan vulnerable decision maker preferences, regulatory restrictions, other emergent...
The resilience of systems is a topic increasing interest for engineers. Across systems, stakeholder perspectives, and application domains, there opportunity analytics that broadly applicable. This paper introduces an important facet concerned with disruption priorities changeable requirements. In particular, in this addresses the evolution preferences under scenarios technological, economic, environmental, regulatory, other stressors. Updating problem frames described to improve objectivity...
Government agencies, industry consortia, and companies are interested in scenario analysis to improve preparedness plans across infrastructures, technologies, policies, allocation of resources. This paper develops a concept for virtual reality tool disaster infrastructure management Rio de Janeiro, Brazil. The will assist identifying the future scenarios that most matter agency preparedness. explores environment several types hazards including radiological emergency, urban flooding, power...