228 search results for “rare earth elements” in the Public website
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Rare Earth Supply Chain and Industrial Ecosystem: A Material Flow Assessment of European Union
1) Assess the trends in supply and production status of these critical minerals and mineral products worldwide and Europe’s dependence including on intermediate products such as permanent magnets, RE based super alloys, batteries, polishing compounds, phosphors, catalysts etc. 2) Trace the entire value…
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When materials become critical: lessons from the 2010 rare earth crisis
Promotor: G.J. Kramer Co-Promotor: E.G.M. Kleijn
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Growth and Transport properties of (Rare Earth)TiO3 / SrTiO3 interfaces
This thesis presents the results of a study on the interfaces of insulating oxides with and without the insertion of a magnetic layer.
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Cavity quantum electrodynamics with rare-earth ions in solids
Promotor: Prof.dr. D. Bouwmeester, Co-Promotor: M.J.A. de Dood
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Hoe zit het met de onmisbare, zeldzame aardmetalen?
In aflevering zes van tv-programma ‘Waarde van de Aarde’ volgt Twan Huys het spoor van de zeldzame aardmetalen, of rare earth metals. Industrieel ecoloog Benjamin Sprecher vertelt in de uitzending dat die aardmetalen geologisch gezien niet zeldzaam zijn, maar geopolitiek gezien wel.
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scientific programmer, Automated machine learning for spatio-temporal Earth Observation datasets
Science, Leiden Institute of Advanced Computer Science (LIACS)
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Assistant Professor (UD) in the field of Earth System Science and Global Challenges
Governance and Global Affairs
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Rare jongens, die elektronen
Hoe supergeleiding werkt is voor onderzoekers allang geen geheim meer. De laatste vijf jaar hebben ze vooral aandacht voor het onverklaarbare gedrag van de elektronen die in het binnenste van supergeleiders zitten. Een internationaal onderzoeksteam met onder meer Leidse natuurkundigen zette in juli…
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Improving vegetation representation in Multi-sensor Earth Observation Products through phenology and trait-based priors
What are the behaviours of plant traits throughout various points in the growing season in a radiative transfer model framework and how well can this knowledge be integrated through data assimilation to provide priors for robust local and global vegetation products and analysis?
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Rare jongens, die Romeinen
Waren jongeren in de Oudheid vroeg-volwassenen met verantwoordelijke publieke functies, of wispelturige, soms idealistische adolescenten? In het boek Jeugd in het Romeinse Rijk analyseren Leids historicus Johan Strubbe en zijn Leuvense collega Christian Laes een debat. Spreken literaire bronnen en inscripties…
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Educatieve Earth Ball voor docenten over de hele wereld
Het EU-UNAWE project van de Universiteit Leiden inspireert kansarme jonge kinderen met het heelal en presenteert met trots deze lichte, opgeblazen versie van onze planeet. De Earth Ball is een eenvoudig hulpmiddel voor in de klas en wordt geleverd met een activiteitenboek vol ideeën over hoe dit lesmateriaal…
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Abiotic depletion in LCIA
Possible improvements for the assessment of abiotic depletion in LCA.
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Growth and Transport properties of (Rare Earth)TiO3 / SrTiO3 interfaces
PhD Defence
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Resolving gas-phase metallicity in galaxies
Galaxies are environments where gas coalesces, cools, and is converted into stars. However, it remains unclear the exact mechanisms through which galaxies acquire, redistribute and lose their gas.
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Arjen Doelman geselecteerd binnen het programma Mathematics of Planet Earth van NWO
Het onderzoeksproject van Prof.Dr. Arjen Doelman ‘Adaptive Semi-Strong Ecosystem Dynamics’ is geselecteerd voor financiering als een van de 7 onderzoeksprojecten binnen het programma Mathematics of Planet Earth (MPE) van NWO.
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Current challenges in statistical DNA evidence evaluation
Promotor: R.D. Gill, F. Taroni
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José MogollónScience
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Nicolas NavarreScience
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When materials become critical: lessons from the 2010 rare earth crisis
PhD Defence
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Identifying the origins of galaxy formation
This thesis investigates how galaxies form and what diversifies the evolutionary histories of galaxies.
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On the Power Efficiency, Low latency, and Quality of Service in Network-on-Chip
In multi/many-core System-on-Chips (SoCs), the performance is almost linearly scaling with the number of processing elements.
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Assemblage and functioning of bacterial communities in soil and rhizosphere
Promotores: J.A.van Veen, P.L.G.Klinkhamer. Co-promotor: E.E.Kuramae
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Software
Image-Pro Plus, ImageJ, Cell Profiler, R, Knime en NIS-elements
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Galaxy formation traced by heavy element pollution
Galaxies form and evolve through close interaction with their surroundings. As a result, the heavy elements ('metals') that are synthesized in stars, are found both inside and outside galaxies.
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Convergent molecular evolution of toxins in the venom of advanced snakes (Colubroidea)
The explosive radiation and diversification of the advanced snakes (superfamily Colubroidea) was associated with changes in all aspects of the shared venom system. Morphological changes included the partitioning of the mixed ancestral glands into two discrete glands devoted for production of venom ormucous…
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Protostellar jets and planet-forming disks: Witnessing the formation of Solar System analogues with interferometry
The focus of this thesis is how stars like our Sun and planets like Jupiter, Saturn, and Earth are formed.
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Tracing the evolution of protoplanetary disks
Promotores: Prof.dr. A.G.G.M. Tielens, Prof.dr. L.B.F.M. Waters (UvA), Prof.dr. C. Dominik (UvA)
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Adaptive Semi-Strong Ecosystem Dynamics
Developing methodes to understand the evolution of patches in natural ecosystems
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Global fitness maximising approaches to evaluate the trade-offs involved in the evergreen and deciduous conundrum
Which traits and/or trade-offs determine benefits of being deciduous or evergreen?
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Zeldzame aardmetalen voor kwantumopslag
Zeldzame aardmetalen, Rare-earth materialen, zijn goede kandidaten om kwantuminformatie op te slaan, omdat de ongewenste interactie met hun omgeving minimaal is. Aan de andere kant zorgt dit gebrek aan interactie voor een erg lage respons op licht, waardoor data lezen en wegschrijven moeilijk wordt.…
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Histone-DNA assemblies in archaea. Shaping the genome on the edge of life
All life on earth contains DNA, which is used to store biological information. Organisms compact their DNA in order for it to fit inside their cell(s).
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Chemistry in embedded disks: setting the stage for planet formation
To address the fundamental questions of how life on Earth emerged and how common life may be in the Universe, it is crucial to know the chemical composition of the planet-forming material.
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Hergebruik en recyclen van mobiele telefoons
Industrieel ecoloog Rene Kleijn was te gast in het tv-consumenten programma Radar. De uitzending vond plaats op maandag 27 Februari 2017 om 20.30 uur (NPO). Hij heeft daar gesproken over het hergebruik en recyclen van mobiele telefoons. Dit sluit aan op zijn werk in verschillende onderzoeksprojecten…
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Imperfections: using defects to program designer matter
Errors are everywhere, and mechanical failures are especially common: buckled grain silos and cracked support columns are, justly, seen as an issue to be avoided.
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Computability of the étale Euler-Poincaré characteristic
Promotor: S.J. Edixhoven, L.D.J. Taelman
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PiP congres: ‘America: The Greatest Nation on Earth?’
Conference
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Spin-triplet supercurrents of odd and even parity in nanostructured devices
Triplet superconductivity refers to a condensate of equal-spin Cooper pairs (pairs of electrons with equal spin).
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Global Earth Matters: Mining, Materiality and the Museum - Gold
Conference
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Spectropolarimetry for planetary exploration
Promotor: Prof.dr. C.U. Keller, Co-promotor: Frans Snik
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A molecular journey : tales of sublimating ices from hot cores to comets
The thesis explores how interstellar chemistry evolves as a function of time and changing physical architectures during the formation of stars.
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The Diving Dutchman: het marien-gravimetrisch onderzoek van F.A. Vening Meinesz (1887-1966)
Promotores: Prof.dr. F. van Lunteren, Prof.dr. F.S. Gaastra
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Towards an effective biodiversity conservation and governance in the Pontocaspian region
Freshwater and brackish water ecosystems are arguably the most vulnerable ecosystems on earth, due to concentrated human developments in and around them. The Pontocaspian (PC) region located at the border of Europe and Asia contains a variety of brackish water ecosystems and unique inhabitants, known…
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The impact of defense hormones on the interaction between plants and the soil microbial community
The soil ecosystem consists of the largest reservoir of biodiversity on Earth.
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Towards circular and energy-efficient management of building stock
Material circularity and energy efficiency are highly relevant and intertwined issues for the transition towards a carbon-neutral and circular built environment. In the Netherlands, the building sector has been rendered a priority towards a circular and low-carbon society.
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Non-equilibrium chemistry and cooling in simulations of galaxy formation
Promotor: J. Schaye
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Opportunity and Problem in Context (OPiC). A framework for environmental management in developing countries
Promotor: W.T. de Groot
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Education
The specialisation Science Communication and Society (SCS) concerns science communication in a broad sense. The program focuses on the link between science and society and covers knowledge and skills in the field of science communication.
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The astrochemical factory: A solid base for interstellar reactions
In this thesis chemical and physical processes in the ice mantles on interstellar dust grains are studied.
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UV Photodesorption and Photoconversion of Interstellar Ices
This thesis is an experimental study of the UV irradiation of the interstellar ice analogues, relevant for the different stages of the star and planet formation sequence.
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High throughput microscopy of mechanism-based reporters in druginduced liver injury
Promotor: B. van de Water