Hanjiro Ambrose

ORCID: 0000-0002-6502-5191
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Research Areas
  • Electric Vehicles and Infrastructure
  • Advanced Battery Technologies Research
  • Vehicle emissions and performance
  • Extraction and Separation Processes
  • Energy, Environment, and Transportation Policies
  • Advancements in Battery Materials
  • Drilling and Well Engineering
  • Urban and Freight Transport Logistics
  • Power Transformer Diagnostics and Insulation
  • Hydraulic Fracturing and Reservoir Analysis
  • Recycling and Waste Management Techniques
  • Hybrid Renewable Energy Systems
  • Environmental Impact and Sustainability
  • Transportation Systems and Infrastructure
  • Lubricants and Their Additives
  • Transportation and Mobility Innovations
  • Reservoir Engineering and Simulation Methods
  • Tribology and Wear Analysis
  • High voltage insulation and dielectric phenomena
  • Advanced Battery Materials and Technologies
  • Petroleum Processing and Analysis
  • Groundwater flow and contamination studies
  • Maritime Transport Emissions and Efficiency
  • Mineral Processing and Grinding
  • Enhanced Oil Recovery Techniques

University of California, Davis
2016-2021

Union of Concerned Scientists
2020-2021

San Jose State University
2014

University of California, Berkeley
2014

Gulf Research Center
1951

Batteries have the potential to significantly reduce greenhouse gas emissions from on-road transportation. However, environmental and social impacts of producing lithium-ion batteries, particularly cathode materials, concerns over material criticality are frequently highlighted as barriers widespread electric vehicle adoption. Circular economy strategies, like reuse recycling, can secure regional supplies. To understand for circularity, we undertake a dynamic global flow analysis pack-level...

10.1021/acs.est.0c07030 article EN Environmental Science & Technology 2021-03-25

Abstract Lithium is a critical energy material in part due to an array of emerging technologies from electric vehicles renewable systems that rely on large‐format lithium ion batteries. Recent growth demand for primarily increased use batteries, which comprised 46% total by end 2017. These are often deployed improve environmental sustainability, yet the effects and sustainability resources they not well understood, especially as increases over time. This first two article series together...

10.1111/jiec.12949 article EN Journal of Industrial Ecology 2019-10-01

Although deployments of grid-scale stationary lithium ion battery energy storage systems are accelerating, the environmental impacts this new infrastructure class not well studied. To date, a small literature life cycle assessments (LCAs) and related studies has examined associated impacts, but they rely on variety methods system boundaries rather than consistent approach. The large LCA transportation applications LIB contains selected life-cycle inventory data relevant for ESSs, does...

10.1016/j.susmat.2019.e00120 article EN cc-by-nc-nd Sustainable materials and technologies 2019-07-11

10.1016/j.trd.2016.05.009 article EN publisher-specific-oa Transportation Research Part D Transport and Environment 2016-06-14

Abstract An array of emerging technologies, from electric vehicles to renewable energy systems, relies on large‐format lithium ion batteries (LIBs). LIBs are a critical enabler clean technologies commonly associated with air pollution and greenhouse gas mitigation strategies. However, require lithium, expanding the supply requires new production capacity, which, in turn, changes environmental impacts since different resource types ore qualities will be exploited. A question interest is...

10.1111/jiec.12942 article EN cc-by Journal of Industrial Ecology 2019-10-07

Building rural energy infrastructure in developing countries remains a significant financial, policy and technological challenge. The growth of the electric vehicle (EV) industry will rapidly expand resource partially degraded, ‘retired’, but still usable batteries 2016 beyond. These can become storage hubs for community-scale grids world. We model performance potential economic aspects utilization retired EV decentralized mini- micro-grids. develop explore four scenarios across three...

10.1088/1748-9326/9/9/094004 article EN cc-by Environmental Research Letters 2014-09-01

Flow measurements on bentonite suspensions, showing both the property of thixotropy and fluidity variable with shearing stress, were performed in capillary tubes, brass pipes, a rotary consistometer special design. The latter instrument was used to show that structure such gels must be broken down or built up until an equilibrium state flow is attained obtain reproducible measurements. No slippage at walls found non-plug flow. Turbulent suspensions investigated one-half one-inch pipes. It...

10.1063/1.1745191 article EN Physics 1933-08-01

The desirable properties of rotary drilling fluid in the technique boring oil wells are considered. An analysis problem elimination cuttings by differential settling with reclamation colloidal content clay dispersions shows that viscosity should be lowered as much possible when density is held constant. It demonstrated lowering results a small pump pressure, even though velocity mud-fluid increased to maintain constant carrying capacity for cuttings. Several chemicals have been found cause...

10.1063/1.1745062 article EN Physics 1932-05-01

A study of the swelling and gelling properties bentonite dispersions has been made in connection with increasing use this mineral for drilling oil wells. It is shown that emulsoid type colloids present responds to changes pH dispersion medium respect rate settling, viscosity swelling, thus behaving as a typical hydrophilic colloid. The curve percent solid matter settled definite time ordinate against shows maximum at isoelectric point, minima on each side corresponding points adsorption. As...

10.1063/1.1744990 article EN Physics 1931-08-01

Author(s): Jaller, Miguel, PhD; Pineda, Leticia; Ambrose, Hanjiro | Abstract: While trucks may only represent a small share of the traffic in urban areas, they generate more than half overall emissions for specific contaminants (Jaller et al., 2016). One approaches to contend with such issues is promote use new technologies and alternative fuel pathways. This work conducts an empirical assessment economic driving patterns used last mile delivery given increase these vehicles serving even...

10.7922/g2jm27tw article EN 2018-08-01

The California Air Resources Board is considering regulatory changes to require an increasing share of public transit buses produce zero-emissions by 2040. This report attempts identify and assess critical drivers electric bus adoption costs, characterize uncertainty in forecasting agency transition provide approach support agencies’ assessment strategic investments new vehicle technologies. While current purchase costs for are 40% higher compared conventional diesel or clean-natural gas...

10.7922/g2pz570z article EN 2017-10-01

A critical review and summary are given of some the rheological aspects production transportation petroleum. It is shown how proper flow characteristics colloidal dispersions known as drilling fluids may be controlled by chemico-physical methods, importance these in technique analyzed. The laws gas-oil mixtures through porous media approached a study permeability factor such media, applied to problems ultimate production, rate, effective drainage area, etc., petroleum-producing horizons....

10.1063/1.1745253 article EN Physics 1934-08-01

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChemical Treatment of Rotary Drilling Fluids - Stabilization Weighted Dispersions: Effect pH ValueH. A. Ambrose and G. LoomisCite this: Ind. Eng. Chem. 1933, 25, 9, 1019–1022Publication Date (Print):September 1, 1933Publication History Published online1 May 2002Published inissue 1 September 1933https://pubs.acs.org/doi/10.1021/ie50285a022https://doi.org/10.1021/ie50285a022research-articleACS PublicationsRequest reuse permissionsArticle...

10.1021/ie50285a022 article EN Industrial & Engineering Chemistry 1933-09-01

The general problem of elimination sand, cuttings, and gas from aqueous dispersions clay, commonly used in the rotary method drilling oil wells, with reclamation colloidal content fluid, is considered. Various mechanical devices for this purpose are briefly described available data compared laboratory findings on rates settling particles clay fluids after chemical treatment. colloid physics underlying efficiency treatment discussed. Graphs given showing superiority as methods reclaiming...

10.1063/1.1745099 article EN Physics 1932-10-01

Author(s): Ambrose, Hanjiro; Kendall, Alissa | Abstract: California’s freight transportation system is a vital part of the state’s economy but significant contributor to greenhouse gas emissions and generates an even higher portion regional local air pollution. The primary strategy for reducing from on-road sector relies on deploying new vehicle fuel technologies, such as electric medium- heavy-duty vehicles. market truck technologies developing rapidly.The goal this research quantify life...

10.7922/g2m61hh8 article EN 2019-11-01

Author(s): Kendall, Alissa; Ambrose, Hanjiro; Maroney, Erik A. | Abstract: In the United States, vehicle emissions are responsible for 29% of total greenhouse gas (GHG) with majority these coming from light-duty vehicles. To reduce GHG emissions, U.S. has adopted policies to support development and deployment low-carbon fuels zero emission vehicles (ZEVs—e.g., plug-in hybrid electric [PHEVs] battery [EVs]).Most current focus on operation only, omitting significant contributions production...

10.7922/g2fb515b article EN 2019-10-01
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