Poster for presentation at the Transportation Research Board 2024 Annual meeting, discussing results of UC Davis Policy Institute research on policies to support the deployment of sustainable aviation fuels (SAF)
ELPE presentation to Biofuels International Sep 2016Spyros Kiartzis
- The oil and gas industry faces challenges from changing demand, supply, policies, and regulations that are driving a transition to new fuels and technologies.
- Advanced biofuels are seen as a potential alternative to fossil fuels for transportation but have technological issues and high costs that must still be addressed.
- Hellenic Petroleum is investing in renewable energy, researching advanced biofuels, and supporting new transport technologies like electric vehicles, in line with its vision of sustainable transportation and clean energy.
The document discusses various trends driving the need for clean transportation solutions for heavy-duty vehicles, including energy security concerns, global warming, and emissions regulations. It outlines the lack of a single solution and need for integrated strategies. Options discussed include hybrids, natural gas, biomethane, hydrogen fuel cells, and electric vehicles. Programs to support demonstration of these technologies are also mentioned.
SEAI - National Energy Research and Policy Conference 2021 - Session 2SustainableEnergyAut
The document summarizes a presentation on mitigating air pollution from heavy-duty vehicles (HDVs) in Ireland. The presentation covered:
1) Estimating emissions from Ireland's 2018 HDV fleet using modeling tools and finding total emissions were higher when including lighter vehicles.
2) Projections showed emissions increasing by 2030 and 2050 without intervention.
3) Various mitigation measures were evaluated including alternative fuels, technologies, eco-driving practices, and demand management. Modeling found measures like scrubbers and filters can reduce emissions cost-effectively.
4) Stakeholder interviews found openness to training and incentives to adopt alternatives but noted infrastructure and data limitations.
5) Guidelines
A Fuel Efficiency Horizon for U.S. Automobilesjmdecicco
The document analyzes the potential for improving fuel efficiency in the US automobile fleet through 2035 using evolutionary rather than revolutionary technologies. It finds that a 3x increase in efficiency over 2005 levels, reaching 52 MPG for new vehicles by 2025, can be achieved through widespread adoption of technologies like turbocharged direct injection engines, hybrid systems, and aerodynamic and mass improvements. However, increasing vehicle efficiency is only part of the solution; policies also need to address transportation infrastructure and fuel supply to fully manage emissions. Revolutionary technologies show potential but face higher costs than evolutionary efficiency gains from gasoline and diesel vehicles.
ELPE presentation to Biofuels International Sep 2016Spyros Kiartzis
- The oil and gas industry faces challenges from changing demand, supply, policies, and regulations that are driving a transition to new fuels and technologies.
- Advanced biofuels are seen as a potential alternative to fossil fuels for transportation but have technological issues and high costs that must still be addressed.
- Hellenic Petroleum is investing in renewable energy, researching advanced biofuels, and supporting new transport technologies like electric vehicles, in line with its vision of sustainable transportation and clean energy.
The document discusses various trends driving the need for clean transportation solutions for heavy-duty vehicles, including energy security concerns, global warming, and emissions regulations. It outlines the lack of a single solution and need for integrated strategies. Options discussed include hybrids, natural gas, biomethane, hydrogen fuel cells, and electric vehicles. Programs to support demonstration of these technologies are also mentioned.
SEAI - National Energy Research and Policy Conference 2021 - Session 2SustainableEnergyAut
The document summarizes a presentation on mitigating air pollution from heavy-duty vehicles (HDVs) in Ireland. The presentation covered:
1) Estimating emissions from Ireland's 2018 HDV fleet using modeling tools and finding total emissions were higher when including lighter vehicles.
2) Projections showed emissions increasing by 2030 and 2050 without intervention.
3) Various mitigation measures were evaluated including alternative fuels, technologies, eco-driving practices, and demand management. Modeling found measures like scrubbers and filters can reduce emissions cost-effectively.
4) Stakeholder interviews found openness to training and incentives to adopt alternatives but noted infrastructure and data limitations.
5) Guidelines
A Fuel Efficiency Horizon for U.S. Automobilesjmdecicco
The document analyzes the potential for improving fuel efficiency in the US automobile fleet through 2035 using evolutionary rather than revolutionary technologies. It finds that a 3x increase in efficiency over 2005 levels, reaching 52 MPG for new vehicles by 2025, can be achieved through widespread adoption of technologies like turbocharged direct injection engines, hybrid systems, and aerodynamic and mass improvements. However, increasing vehicle efficiency is only part of the solution; policies also need to address transportation infrastructure and fuel supply to fully manage emissions. Revolutionary technologies show potential but face higher costs than evolutionary efficiency gains from gasoline and diesel vehicles.
This document discusses deep decarbonization pathways to keep global warming below 2°C. It defines deep decarbonization as transforming the energy economy consistent with significant greenhouse gas reductions. The key highlights are that deep decarbonization requires electrification, energy efficiency, and decarbonizing electricity generation. It also requires action across multiple sectors and offers flexibility in technology choices. While requiring upfront investment, analyses show the total energy system costs of a decarbonized system in 2050 can be similar to today's costs as a percentage of GDP.
The Asia CCUS Network has been successfully launched on 22-23 June 2021 with initially 13 countries (all ASEAN member countries, the United States, Australia, and Japan) and more than 100 international organisations, companies, financial and research institutions that share the vision of CCUS development throughout the Asian region.
The Network members have expressed their intention to participate to share the vision of the Asia CCUS Network that aims to contribute to the decarbonisation of emissions in Asia through collaboration and cooperation on development and deployment of CCUS.
The Asia CCUS Network provides opportunities for countries in the region to work and collaborate on the low emission technology partnership that will eventually help to build countries’ capability to lower the cost of CCUS technology and its deployment through the collaboration of research and innovation.
At the 2nd Asia CCUS Network (ACN) Knowledge Sharing Conference, the Asia CCUS Network is very pleased to invite experts from the Department of Energy, United States of America (USDOE) to share their insights and experiences about CCUS development and policy to support the deployment of CCUS technology.
The ACN will be an active forum to bridge the knowledge gap on CCUS technologies, policy development to support the development and deployment of CCUS in Asia. Thus, this conference hosted in collaboration with IEA will help to bring in update knowledge, opportunity for investment in CCUS in Asia.
2021 GGSD Forum - Session 4: Greening medium and long-distance transportOECD Environment
This document summarizes a presentation on decarbonizing non-urban passenger transport. It finds that demand for such transport is projected to increase significantly by 2050 without policy intervention. Under current policies, CO2 emissions could rise 25% but ambitious policies could cut emissions by 57% through technological improvements, shifting to low-carbon fuels and modes like high-speed rail, and managing demand. For aviation specifically, the presentation recommends establishing long-term decarbonization targets, factoring non-CO2 impacts, supporting recovery packages with decarbonization requirements, international cooperation, carbon pricing, and research into efficient aircraft and sustainable fuels.
2023-New technologies for greener Shipping-IMO's effort.pptxKuanzongFung
The shipping industry has been making significant contribution on releasing GHG emission. IMO has made great effort for shipping industry on reduction of GHG emission.
CALSTART Emerging Alternative Fuel Vehicle TechnologyCALSTART
The document summarizes an presentation about emerging alternative fuel and vehicle technologies. It discusses trends driving changes in transportation like energy security, global warming, and emissions reductions. It provides updates on technologies and fuels including biofuels, electric and natural gas vehicles, and highlights studies on the environmental impacts of biofuels.
This document discusses policy options for transitioning to a low-carbon economy by 2050. It explores sustaining economic growth while transforming energy production and consumption. The presentation builds on previous publications by identifying policy ideas without prescribing specific approaches. It discusses challenges like uncertain development pathways and high/low carbon scenarios. Milestones by 2025 include efficiency gains, commercializing carbon capture and storage, renewable deployment, and vehicle efficiency. National policy frameworks and international cooperation on technology and emissions management can help achieve long-term climate goals.
Webinar: Global Status of CCS: 2014 - Powering ahead in The AmericasGlobal CCS Institute
Dr Elizabeth Burton, the Global CCS Institute’s General Manager – The Americas, provided an overview of the status of CCS projects worldwide with a focus on developments in the Americas, including the launch of Boundary Dam, the world’s first large-scale power plant with CCS. The global and regional policy landscape, developments in CCS/CCUS technologies, and recommendations for decision makers to advance the development and deployment of CCS/CCUS were also discussed.
The webinar was based on the findings in the Institute’s Global Status of CCS: 2014 report. It was designed for individuals interested and involved in the development and deployment of CCS/CCUS in the Americas, including technology, policy and regulation, and capacity development.
Rebecca Minch Principal Officer, Department
of Communication, Climate Action
and Environment presentation on Deep Retrofit from the perspective of Irish policy
This document discusses strategies for controlling emissions of hydrofluorocarbons (HFCs), including domestic, regional, and international approaches. It notes that HFC usage and emissions have grown substantially to replace ozone-depleting substances banned under the Montreal Protocol. The U.S. has regulations and partnerships to reduce HFC emissions from various sectors. Internationally, amending the Montreal Protocol to phase down HFC production and use could significantly reduce climate change impacts by over 96 billion tons of carbon dioxide by 2050. Momentum is growing for such an amendment with over 100 countries supporting addressing HFCs under the Montreal Protocol.
IEA Bioenergy TCP: preparing the role of bioenergy in the future energy systemIEA-ETSAP
The document discusses IEA Bioenergy, which facilitates bioenergy commercialization. It functions within the IEA and has 24 member countries. IEA Bioenergy aims to provide clear verified bioenergy information through 11 tasks and projects on topics like biofuels and biorefining. The organization's roadmap sees bioenergy providing 17-22% of carbon savings by increasing roles in transport, power, and industry to support climate goals. IEA Bioenergy works to accelerate mature bioenergy and stimulate new technologies while ensuring sustainable feedstock delivery.
Benjamin Sovacool "The Nordic Low-Carbon Transition: Implications and Insights for Researchers and Practitioners" Keynote Energy Cultures Conference 2016
Economic and environmental benefits from international co-ordination on carbo...OECD Environment
The document discusses international coordination on carbon pricing and its economic and environmental benefits. It summarizes findings from 46 studies on the benefits of different forms of international cooperation on carbon pricing. International coordination can significantly reduce mitigation costs through measures like linking carbon markets, extending carbon coverage to other sectors and gases, and coordinating fossil fuel subsidy reform. However, benefits are distributed asymmetrically across countries. International cooperation also yields environmental benefits like reduced emissions and less carbon leakage between countries with different carbon prices.
This document discusses the development of fuel cell technology for road transportation as an alternative to carbon-based fuels. It introduces the issues with carbon emissions from transportation, and hydrogen fuel cells as a more efficient and less polluting solution. The document outlines the managerial challenges to adopting this disruptive technology, including high costs currently and a lack of supporting infrastructure and innovations. It then analyzes the roles of governments, industry, and customers in working to overcome these adoption barriers through initiatives such as funding programs, pilot projects, vehicle development efforts, and building out refueling infrastructure.
Apec workshop 2 presentation 3 c burton global status of ccs-ccusGlobal CCS Institute
This document discusses carbon capture, utilization, and storage (CCUS) technologies. It provides an overview of CCUS, the current global status, and why CCUS is seen as vital for meeting greenhouse gas reduction goals. It also summarizes the technology assessment, policy and market assessment, and understanding and acceptance assessment sections regarding CCUS deployment opportunities and challenges.
SEAI - National Energy Research and Policy Conference 2021, Session 1SustainableEnergyAut
The National Transport Authority developed the Regional Modelling System (RMS) to support evidence-based decision making. The RMS integrates transport, land use, and demographic data to model travel demand across Ireland. It allows the NTA to evaluate policies and infrastructure projects, maximize transport system efficiency, and ensure value for money. The RMS was customized for Irish conditions based on extensive data sources. It consists of regional multimodal models that cover all modes of transport nationally.
The document outlines Bradford's Low Emission Strategy which was adopted in 2013 to improve poor air quality in the city. Bradford was awarded funding to develop the strategy and study the feasibility of a Low Emission Zone. The strategy aims to optimize policies, raise awareness, accelerate cleaner fuels and technologies, and promote partnerships to build on best practices. Initiatives include introducing low emission vehicles to the council fleet, working with local businesses and universities, and using planning policies to encourage low emission options. The feasibility study evaluated options for a Low Emission Zone in Bradford, including restricting access for high-polluting vehicles in certain areas. Health impact assessments were conducted to inform the strategy and potential zone.
Poster for presentation at the Transportation Research Board 2024 Annual meeting, discussing results of UC Davis Policy Institute research on targets for California's Low Carbon Fuel Standard in 2030 and beyond.
Scientists often find it hard to bridge the gap between themselves and non-technical audiences. This is, in part, because the communication practices which make a good scientist, result in communication that is hard for a general audience to comprehend. The first step to overcoming this challenge is understanding what parts of scientific communication are tough for non-scientists. This presentation offers both a better understanding of the differences, as well as practical tools to improve.
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This document discusses deep decarbonization pathways to keep global warming below 2°C. It defines deep decarbonization as transforming the energy economy consistent with significant greenhouse gas reductions. The key highlights are that deep decarbonization requires electrification, energy efficiency, and decarbonizing electricity generation. It also requires action across multiple sectors and offers flexibility in technology choices. While requiring upfront investment, analyses show the total energy system costs of a decarbonized system in 2050 can be similar to today's costs as a percentage of GDP.
The Asia CCUS Network has been successfully launched on 22-23 June 2021 with initially 13 countries (all ASEAN member countries, the United States, Australia, and Japan) and more than 100 international organisations, companies, financial and research institutions that share the vision of CCUS development throughout the Asian region.
The Network members have expressed their intention to participate to share the vision of the Asia CCUS Network that aims to contribute to the decarbonisation of emissions in Asia through collaboration and cooperation on development and deployment of CCUS.
The Asia CCUS Network provides opportunities for countries in the region to work and collaborate on the low emission technology partnership that will eventually help to build countries’ capability to lower the cost of CCUS technology and its deployment through the collaboration of research and innovation.
At the 2nd Asia CCUS Network (ACN) Knowledge Sharing Conference, the Asia CCUS Network is very pleased to invite experts from the Department of Energy, United States of America (USDOE) to share their insights and experiences about CCUS development and policy to support the deployment of CCUS technology.
The ACN will be an active forum to bridge the knowledge gap on CCUS technologies, policy development to support the development and deployment of CCUS in Asia. Thus, this conference hosted in collaboration with IEA will help to bring in update knowledge, opportunity for investment in CCUS in Asia.
2021 GGSD Forum - Session 4: Greening medium and long-distance transportOECD Environment
This document summarizes a presentation on decarbonizing non-urban passenger transport. It finds that demand for such transport is projected to increase significantly by 2050 without policy intervention. Under current policies, CO2 emissions could rise 25% but ambitious policies could cut emissions by 57% through technological improvements, shifting to low-carbon fuels and modes like high-speed rail, and managing demand. For aviation specifically, the presentation recommends establishing long-term decarbonization targets, factoring non-CO2 impacts, supporting recovery packages with decarbonization requirements, international cooperation, carbon pricing, and research into efficient aircraft and sustainable fuels.
2023-New technologies for greener Shipping-IMO's effort.pptxKuanzongFung
The shipping industry has been making significant contribution on releasing GHG emission. IMO has made great effort for shipping industry on reduction of GHG emission.
CALSTART Emerging Alternative Fuel Vehicle TechnologyCALSTART
The document summarizes an presentation about emerging alternative fuel and vehicle technologies. It discusses trends driving changes in transportation like energy security, global warming, and emissions reductions. It provides updates on technologies and fuels including biofuels, electric and natural gas vehicles, and highlights studies on the environmental impacts of biofuels.
This document discusses policy options for transitioning to a low-carbon economy by 2050. It explores sustaining economic growth while transforming energy production and consumption. The presentation builds on previous publications by identifying policy ideas without prescribing specific approaches. It discusses challenges like uncertain development pathways and high/low carbon scenarios. Milestones by 2025 include efficiency gains, commercializing carbon capture and storage, renewable deployment, and vehicle efficiency. National policy frameworks and international cooperation on technology and emissions management can help achieve long-term climate goals.
Webinar: Global Status of CCS: 2014 - Powering ahead in The AmericasGlobal CCS Institute
Dr Elizabeth Burton, the Global CCS Institute’s General Manager – The Americas, provided an overview of the status of CCS projects worldwide with a focus on developments in the Americas, including the launch of Boundary Dam, the world’s first large-scale power plant with CCS. The global and regional policy landscape, developments in CCS/CCUS technologies, and recommendations for decision makers to advance the development and deployment of CCS/CCUS were also discussed.
The webinar was based on the findings in the Institute’s Global Status of CCS: 2014 report. It was designed for individuals interested and involved in the development and deployment of CCS/CCUS in the Americas, including technology, policy and regulation, and capacity development.
Rebecca Minch Principal Officer, Department
of Communication, Climate Action
and Environment presentation on Deep Retrofit from the perspective of Irish policy
This document discusses strategies for controlling emissions of hydrofluorocarbons (HFCs), including domestic, regional, and international approaches. It notes that HFC usage and emissions have grown substantially to replace ozone-depleting substances banned under the Montreal Protocol. The U.S. has regulations and partnerships to reduce HFC emissions from various sectors. Internationally, amending the Montreal Protocol to phase down HFC production and use could significantly reduce climate change impacts by over 96 billion tons of carbon dioxide by 2050. Momentum is growing for such an amendment with over 100 countries supporting addressing HFCs under the Montreal Protocol.
IEA Bioenergy TCP: preparing the role of bioenergy in the future energy systemIEA-ETSAP
The document discusses IEA Bioenergy, which facilitates bioenergy commercialization. It functions within the IEA and has 24 member countries. IEA Bioenergy aims to provide clear verified bioenergy information through 11 tasks and projects on topics like biofuels and biorefining. The organization's roadmap sees bioenergy providing 17-22% of carbon savings by increasing roles in transport, power, and industry to support climate goals. IEA Bioenergy works to accelerate mature bioenergy and stimulate new technologies while ensuring sustainable feedstock delivery.
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Economic and environmental benefits from international co-ordination on carbo...OECD Environment
The document discusses international coordination on carbon pricing and its economic and environmental benefits. It summarizes findings from 46 studies on the benefits of different forms of international cooperation on carbon pricing. International coordination can significantly reduce mitigation costs through measures like linking carbon markets, extending carbon coverage to other sectors and gases, and coordinating fossil fuel subsidy reform. However, benefits are distributed asymmetrically across countries. International cooperation also yields environmental benefits like reduced emissions and less carbon leakage between countries with different carbon prices.
This document discusses the development of fuel cell technology for road transportation as an alternative to carbon-based fuels. It introduces the issues with carbon emissions from transportation, and hydrogen fuel cells as a more efficient and less polluting solution. The document outlines the managerial challenges to adopting this disruptive technology, including high costs currently and a lack of supporting infrastructure and innovations. It then analyzes the roles of governments, industry, and customers in working to overcome these adoption barriers through initiatives such as funding programs, pilot projects, vehicle development efforts, and building out refueling infrastructure.
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This document discusses carbon capture, utilization, and storage (CCUS) technologies. It provides an overview of CCUS, the current global status, and why CCUS is seen as vital for meeting greenhouse gas reduction goals. It also summarizes the technology assessment, policy and market assessment, and understanding and acceptance assessment sections regarding CCUS deployment opportunities and challenges.
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The document outlines Bradford's Low Emission Strategy which was adopted in 2013 to improve poor air quality in the city. Bradford was awarded funding to develop the strategy and study the feasibility of a Low Emission Zone. The strategy aims to optimize policies, raise awareness, accelerate cleaner fuels and technologies, and promote partnerships to build on best practices. Initiatives include introducing low emission vehicles to the council fleet, working with local businesses and universities, and using planning policies to encourage low emission options. The feasibility study evaluated options for a Low Emission Zone in Bradford, including restricting access for high-polluting vehicles in certain areas. Health impact assessments were conducted to inform the strategy and potential zone.
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Poster for presentation at the Transportation Research Board 2024 Annual meeting, discussing results of UC Davis Policy Institute research on targets for California's Low Carbon Fuel Standard in 2030 and beyond.
Scientists often find it hard to bridge the gap between themselves and non-technical audiences. This is, in part, because the communication practices which make a good scientist, result in communication that is hard for a general audience to comprehend. The first step to overcoming this challenge is understanding what parts of scientific communication are tough for non-scientists. This presentation offers both a better understanding of the differences, as well as practical tools to improve.
Colin Murphy presented research on modeling the life cycle environmental impacts of cellulosic biofuel production. He summarized studies on soil organic carbon changes from corn stover harvest, finding residue removal can decrease SOC by 200-750 kg/ha/year. Life cycle analyses showed both corn and switchgrass ethanol can meet GHG targets, but feedstock production and processing dominate impacts. Soil organic carbon loss, if it occurs, likely dominates the overall system. Key factors include carefully managing residue removal to avoid soil carbon loss, and ensuring biofuel facilities are energy neutral.
This document summarizes current research on air pollutant emissions from bioenergy presented by Colin Murphy on May 21, 2013. It discusses the current status of bioenergy in California, advanced combustion technologies to reduce pollutants, integrating bioenergy facilities with other outputs like nutrient recovery, and modeling the potential effects of air pollution regulation on biofuel industry development. Key findings include that advanced technologies like SCR and partial oxidation can achieve low NOx and PM emissions, and multi-output facilities integrating energy with products or nutrients may improve economics. Modeling suggests air quality costs have limited effect on biofuel supply due to facilities siting, but more localized analysis is needed.
Basics of bioenergy and biofuels lecture. First given to ESP 10 class, 3/7/2013. Thanks to Steven Kaffka and Nathan Parker, who contributed some material.
The document summarizes research integrating air pollution compliance costs into a geospatial bioenergy systems model (GBSM) that evaluates the supply and distribution of biofuels across the western US. The GBSM was modified to include estimated costs for complying with air pollution regulations depending on the location's nonattainment status for particulate matter and nitrogen oxides. Preliminary results found air pollution costs had a small effect, reducing biofuel production by 0.3% and slightly altering the spatial distribution and capacity of biorefineries. The research aims to better incorporate environmental factors into economic optimization of biofuel systems.
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The debris of the ‘last major merger’ is dynamically youngSérgio Sacani
The Milky Way’s (MW) inner stellar halo contains an [Fe/H]-rich component with highly eccentric orbits, often referred to as the
‘last major merger.’ Hypotheses for the origin of this component include Gaia-Sausage/Enceladus (GSE), where the progenitor
collided with the MW proto-disc 8–11 Gyr ago, and the Virgo Radial Merger (VRM), where the progenitor collided with the
MW disc within the last 3 Gyr. These two scenarios make different predictions about observable structure in local phase space,
because the morphology of debris depends on how long it has had to phase mix. The recently identified phase-space folds in Gaia
DR3 have positive caustic velocities, making them fundamentally different than the phase-mixed chevrons found in simulations
at late times. Roughly 20 per cent of the stars in the prograde local stellar halo are associated with the observed caustics. Based
on a simple phase-mixing model, the observed number of caustics are consistent with a merger that occurred 1–2 Gyr ago.
We also compare the observed phase-space distribution to FIRE-2 Latte simulations of GSE-like mergers, using a quantitative
measurement of phase mixing (2D causticality). The observed local phase-space distribution best matches the simulated data
1–2 Gyr after collision, and certainly not later than 3 Gyr. This is further evidence that the progenitor of the ‘last major merger’
did not collide with the MW proto-disc at early times, as is thought for the GSE, but instead collided with the MW disc within
the last few Gyr, consistent with the body of work surrounding the VRM.
hematic appreciation test is a psychological assessment tool used to measure an individual's appreciation and understanding of specific themes or topics. This test helps to evaluate an individual's ability to connect different ideas and concepts within a given theme, as well as their overall comprehension and interpretation skills. The results of the test can provide valuable insights into an individual's cognitive abilities, creativity, and critical thinking skills
Describing and Interpreting an Immersive Learning Case with the Immersion Cub...Leonel Morgado
Current descriptions of immersive learning cases are often difficult or impossible to compare. This is due to a myriad of different options on what details to include, which aspects are relevant, and on the descriptive approaches employed. Also, these aspects often combine very specific details with more general guidelines or indicate intents and rationales without clarifying their implementation. In this paper we provide a method to describe immersive learning cases that is structured to enable comparisons, yet flexible enough to allow researchers and practitioners to decide which aspects to include. This method leverages a taxonomy that classifies educational aspects at three levels (uses, practices, and strategies) and then utilizes two frameworks, the Immersive Learning Brain and the Immersion Cube, to enable a structured description and interpretation of immersive learning cases. The method is then demonstrated on a published immersive learning case on training for wind turbine maintenance using virtual reality. Applying the method results in a structured artifact, the Immersive Learning Case Sheet, that tags the case with its proximal uses, practices, and strategies, and refines the free text case description to ensure that matching details are included. This contribution is thus a case description method in support of future comparative research of immersive learning cases. We then discuss how the resulting description and interpretation can be leveraged to change immersion learning cases, by enriching them (considering low-effort changes or additions) or innovating (exploring more challenging avenues of transformation). The method holds significant promise to support better-grounded research in immersive learning.
When I was asked to give a companion lecture in support of ‘The Philosophy of Science’ (https://shorturl.at/4pUXz) I decided not to walk through the detail of the many methodologies in order of use. Instead, I chose to employ a long standing, and ongoing, scientific development as an exemplar. And so, I chose the ever evolving story of Thermodynamics as a scientific investigation at its best.
Conducted over a period of >200 years, Thermodynamics R&D, and application, benefitted from the highest levels of professionalism, collaboration, and technical thoroughness. New layers of application, methodology, and practice were made possible by the progressive advance of technology. In turn, this has seen measurement and modelling accuracy continually improved at a micro and macro level.
Perhaps most importantly, Thermodynamics rapidly became a primary tool in the advance of applied science/engineering/technology, spanning micro-tech, to aerospace and cosmology. I can think of no better a story to illustrate the breadth of scientific methodologies and applications at their best.
The use of Nauplii and metanauplii artemia in aquaculture (brine shrimp).pptxMAGOTI ERNEST
Although Artemia has been known to man for centuries, its use as a food for the culture of larval organisms apparently began only in the 1930s, when several investigators found that it made an excellent food for newly hatched fish larvae (Litvinenko et al., 2023). As aquaculture developed in the 1960s and ‘70s, the use of Artemia also became more widespread, due both to its convenience and to its nutritional value for larval organisms (Arenas-Pardo et al., 2024). The fact that Artemia dormant cysts can be stored for long periods in cans, and then used as an off-the-shelf food requiring only 24 h of incubation makes them the most convenient, least labor-intensive, live food available for aquaculture (Sorgeloos & Roubach, 2021). The nutritional value of Artemia, especially for marine organisms, is not constant, but varies both geographically and temporally. During the last decade, however, both the causes of Artemia nutritional variability and methods to improve poorquality Artemia have been identified (Loufi et al., 2024).
Brine shrimp (Artemia spp.) are used in marine aquaculture worldwide. Annually, more than 2,000 metric tons of dry cysts are used for cultivation of fish, crustacean, and shellfish larva. Brine shrimp are important to aquaculture because newly hatched brine shrimp nauplii (larvae) provide a food source for many fish fry (Mozanzadeh et al., 2021). Culture and harvesting of brine shrimp eggs represents another aspect of the aquaculture industry. Nauplii and metanauplii of Artemia, commonly known as brine shrimp, play a crucial role in aquaculture due to their nutritional value and suitability as live feed for many aquatic species, particularly in larval stages (Sorgeloos & Roubach, 2021).
The cost of acquiring information by natural selectionCarl Bergstrom
This is a short talk that I gave at the Banff International Research Station workshop on Modeling and Theory in Population Biology. The idea is to try to understand how the burden of natural selection relates to the amount of information that selection puts into the genome.
It's based on the first part of this research paper:
The cost of information acquisition by natural selection
Ryan Seamus McGee, Olivia Kosterlitz, Artem Kaznatcheev, Benjamin Kerr, Carl T. Bergstrom
bioRxiv 2022.07.02.498577; doi: https://doi.org/10.1101/2022.07.02.498577
Current Ms word generated power point presentation covers major details about the micronuclei test. It's significance and assays to conduct it. It is used to detect the micronuclei formation inside the cells of nearly every multicellular organism. It's formation takes place during chromosomal sepration at metaphase.
Authoring a personal GPT for your research and practice: How we created the Q...Leonel Morgado
Thematic analysis in qualitative research is a time-consuming and systematic task, typically done using teams. Team members must ground their activities on common understandings of the major concepts underlying the thematic analysis, and define criteria for its development. However, conceptual misunderstandings, equivocations, and lack of adherence to criteria are challenges to the quality and speed of this process. Given the distributed and uncertain nature of this process, we wondered if the tasks in thematic analysis could be supported by readily available artificial intelligence chatbots. Our early efforts point to potential benefits: not just saving time in the coding process but better adherence to criteria and grounding, by increasing triangulation between humans and artificial intelligence. This tutorial will provide a description and demonstration of the process we followed, as two academic researchers, to develop a custom ChatGPT to assist with qualitative coding in the thematic data analysis process of immersive learning accounts in a survey of the academic literature: QUAL-E Immersive Learning Thematic Analysis Helper. In the hands-on time, participants will try out QUAL-E and develop their ideas for their own qualitative coding ChatGPT. Participants that have the paid ChatGPT Plus subscription can create a draft of their assistants. The organizers will provide course materials and slide deck that participants will be able to utilize to continue development of their custom GPT. The paid subscription to ChatGPT Plus is not required to participate in this workshop, just for trying out personal GPTs during it.
Phenomics assisted breeding in crop improvementIshaGoswami9
As the population is increasing and will reach about 9 billion upto 2050. Also due to climate change, it is difficult to meet the food requirement of such a large population. Facing the challenges presented by resource shortages, climate
change, and increasing global population, crop yield and quality need to be improved in a sustainable way over the coming decades. Genetic improvement by breeding is the best way to increase crop productivity. With the rapid progression of functional
genomics, an increasing number of crop genomes have been sequenced and dozens of genes influencing key agronomic traits have been identified. However, current genome sequence information has not been adequately exploited for understanding
the complex characteristics of multiple gene, owing to a lack of crop phenotypic data. Efficient, automatic, and accurate technologies and platforms that can capture phenotypic data that can
be linked to genomics information for crop improvement at all growth stages have become as important as genotyping. Thus,
high-throughput phenotyping has become the major bottleneck restricting crop breeding. Plant phenomics has been defined as the high-throughput, accurate acquisition and analysis of multi-dimensional phenotypes
during crop growing stages at the organism level, including the cell, tissue, organ, individual plant, plot, and field levels. With the rapid development of novel sensors, imaging technology,
and analysis methods, numerous infrastructure platforms have been developed for phenotyping.
The technology uses reclaimed CO₂ as the dyeing medium in a closed loop process. When pressurized, CO₂ becomes supercritical (SC-CO₂). In this state CO₂ has a very high solvent power, allowing the dye to dissolve easily.
Or: Beyond linear.
Abstract: Equivariant neural networks are neural networks that incorporate symmetries. The nonlinear activation functions in these networks result in interesting nonlinear equivariant maps between simple representations, and motivate the key player of this talk: piecewise linear representation theory.
Disclaimer: No one is perfect, so please mind that there might be mistakes and typos.
dtubbenhauer@gmail.com
Corrected slides: dtubbenhauer.com/talks.html
1. Findings
Fuel Technologies
• Zero-emission technologies may power regional flights; longer haul will require energy-dense liquid fuels – e.g.
alternative jet fuel (AJF) – for some time.
• Of 9 currently certified AJF technologies, all require blending with fossil jet at present, though some may be able to
work as neat fuels with further development.
• Only 1 technology, hydrotreated lipid (HEFA) alternative jet fuel, has a demonstrated ability to scale.
• Two technologies – HEFA and alcohol-to-jet – have analogues in wide use on road: renewable diesel and ethanol.
• “E-fuels” synthesized using electricity hold promise.
• Need lots of zero carbon electricity for GHG benefits.
• Two-track approach: Deploy pilot plants to help mature tech, but delay scale-up until grid is closer to zero carbon.
• Technologies using cellulosic (low carbon) feedstocks remain expensive and technically unproven at scale after
commercialization failures as on-road fuels in the 2010s.
• Supplies of sustainable and cost-effective biomass are likely limited.
• Land use change is still a risk.
Getting to Scale: Transition Issues
• Alternative aviation fuel market volumes are growing fast, but still low. Global aviation fuel demand exceeds total (on-
road and non-road) alternative fuel production capacity.
• Resource allocation of feedstocks and fuels to different technologies and end uses requires attention to specifics like
fuel delivery systems, blending potential, and spatial distribution of production/demand centers.
• Transition timing raises issues like syncing e-fuel roll-out with decarbonized grids, or deploying technologies first in
the sector (on-road vs. aviation) where they scale more readily to realize learning and cost reductions.
Aviation Fuels – Low Carbon Options Under Current Policy (US Focus)
Julie Witcover, PhD; Colin Murphy, PhD
UC Davis Policy Institute for Energy, Environment & the Economy; UC Davis Low Carbon Fuel Policy Research Initiative
January 2024
Contacting the Authors:
Julie Witcover (jwitcover@ucdavis.edu), Colin Murphy (cwmurphy@ucdavis.edu)
Research Question
Research Questions
• Are current policies adequate to develop
enough low carbon aviation fuels to meet
climate goals?
• If not, what are the key barriers?
• What are the policy implications?
• How are different jurisdictions and
stakeholders approaching decarbonizing
aviation?
Background
• Low carbon aviation fuels are critical for
global aviation decarbonization due to the
need for energy-dense fuels.
• Current aviation decarbonization strategies
rely on carbon offsets, which have often
struggled to deliver verifiable, permanent,
and additional emissions benefits, and are
a temporary solution at best.
• Given projected increases in long-distance
air travel, displacing fossil jet fuel is critical.
Study Methods
Approach
• Literature review
• Focused on:
• Alternative jet fuel technologies
• Transition issues in getting to scale
• Current policy landscape
• Synthesis White Paper draws out, among findings, key areas of uncertainty for policymakers
Select References
• Witcover, J., & Murphy, C. W. (2023). Aviation Fuels – Exploring Low Carbon Options Under Current Policy. UC Office of the
President: University of California Institute of Transportation Studies. http://dx.doi.org/10.7922/G2D21VXJ
• Cazzola, P., & Murphy, C. W. (2023). Low-Carbon Fuels for Aviation and Maritime Transport: Insights from Two Mirroring Workshops
Held in the US and Europe. UC Davis: European Transport and Energy Research Centre. http://dx.doi.org/10.7922/G2SB442Z
• ICAO (2022). “Report on the Feasibility of a Long-Term Aspirational Goal (LTAG) for International Civil Aviation CO2 Emissions
Reductions.” Committee on Aviation Environmental Protection. International Civil Aviation Organization.
https://www.icao.int/environmental-protection/LTAG/Documents/REPORT%20ON%20THE%20FEASIBILITY%20OF%20A%20LONG-
TERM%20ASPIRATIONAL%20GOAL_en.pdf
Acknowledgment: Made possible through funding received by UC-ITS from the State of
California through the Road Repair and Accountability Act of 2017 (Senate Bill 1).
Adapted from ICAO 2022 Long-Term Aspirational Goal, most ambitious emissions savings scenario (Witcover & Murphy).
Policy Discussion
Policy Landscape
• Policy has focused on on-road alternative fuels to date, but aviation is quickly getting more policy attention.
• Policies targeting very low carbon fuels will be needed to spark technology development and deployment.
• Overlapping jurisdictions for international, regional, national and subnational policies complicates policy.
• State policies like California’s Low Carbon Fuel Standard, which incentivizes alternative jet fuel alongside on-road
low carbon fuels, play an outsize role in initial commercial deployment, stacking on federal incentives.
• Policy safeguards against land use change emissions due to biofuel use are insufficient to protect the environment
as biomass feedstock demand grows.
Key Areas of Uncertainty for Policymakers
• Investing in portfolio of technologies with no clear winner. Avoiding overinvesting in current
technologies with a potential link to land use change.
• Hydrogen likely to play a large, but as-yet undetermined role in future energy and fuel systems.
• How and when to build infrastructure -- airport and fuel system – to accommodate low carbon jet fuel.
• How to assign limited biomass feedstock to hard-to-electrify sectors, including aviation. Link to paper.