961 zoekresultaten voor “donker energy” in de Publieke website
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Towards responsible and resilient mineral supply chains, with case studies on cobalt, antimony, and zinc
To meet the rising demand for minerals driven by the global shift to clean energy technologies, ensuring responsible and resilient supply chains is critical. Minerals like cobalt, lithium, and nickel for batteries, neodymium and zinc for wind turbines, and indium for solar panels are essential.
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400 astronomen uit 14 landen in Leiden; Euclid consortium-meeting 2013
Vierhonderd wetenschappers en afgevaardigden van de ruimtevaartindustrie uit 14 landen komen deze week bijeen in Leiden voor de jaarlijkse Euclid Consortium-meeting. Euclid is de Europese ruimtetelescoop die in 2020 wordt gelanceerd en is bedoeld om misschien wel het grootste mysterie van de hedendaagse…
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Zelfportret met halsberg
In dit indringende zelfportret uit circa 1629 presenteert Rembrandt zich als een aristocratische jongeman. Rembrandt schreef zich in 1620 in als letterenstudent aan de Leidse universiteit. Het is onbekend of hij daadwerkelijk naar college ging. In zijn schilderijen en prenten verwerkte hij veel onderwerpen…
- LWSK presenteert: Zwaartekrachtlenzen en Donkere Materie in het Heelal
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Research in Physics, theoretical (MSc)
Deze master specialisatie behandelt een breed scala aan wetenschappelijke onderwerpen, waaronder High Energy Physics and Particle Cosmology, Theoretical Physics of Life Processes en Condensed Matter Theory.
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The LUGO Press
The LUGO Press is a student publication forum, rooted in academia and journalistic practices and published by the Leiden University Green Office.
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Afscheidscollege prof.dr. H.J.M. de Groot
Afscheidscollege
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Vissen naar neutrino’s in de Middellandse Zee
Natuurkundigen, onder wie de Leidse Dorothea Samtleben, bouwen aan een reusachtige onderwatertelescoop om de oorsprong van neutrinos te ontrafelen en het mysterie rond donkere materie op te helderen. De eerste detector is inmiddels geïnstalleerd. Eenmaal af heeft de telescoop het volume van drie kubieke…
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Biomimetic redox reactions of the Cu(II) μ-thiolate complex
Promotor: Prof.dr. E. Bouwman
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State-resolved studies of CO2 gas-surface reactions
The adsorption of D2 and CO2 on catalyst surfaces is studied using a molecular beam in ultra-high vacuum.
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College brengt studenten samen: ‘Ik ben een keuken in Gaza en nu is het donker’
Studenten van Leiden University College werken samen met studenten uit Gaza en Myanmar om via storytelling de sociale determinanten van gezondheid te verkennen en inzichten te delen over ongelijkheid en veerkracht.
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Sebastiaan DeetmanFaculteit der Wiskunde en Natuurwetenschappen
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Han YuFaculteit der Wiskunde en Natuurwetenschappen
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Oscar RuedaFaculteit der Wiskunde en Natuurwetenschappen
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Taking control of charge transfer: strategic design for solar cells
Promotor: Huub J.M. de Groot, Co-promotor: Francesco Buda
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Linking the gene regulatory network with the functional physical structure of whole-genome engineered Arabidopsis mutants : an HR-MAS NMR-based
Climate change is a challenge for both current and future generations. New biological resources have to be developed in order to meet the demand for energy as well as the demand for food.
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Explorations of Water Oxidation Catalysis in Explicit Solvent
In the search for sustainable energy solutions, the idea of artificial photosynthesis has been proposed as an approach with which to use water and sunlight to produce hydrogen.
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Clavis Aurea? Structure-enabled approaches of identifying and optimizing GPCR ligands
Promotores: A.P. IJzerman, H.W.T. van Vlijmen
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Resolving the Dynamic Structure of Chlorosomes in Green Sulfur Bacteria by MAS NMR
Understanding how nature captures and transfers solar energy is essential both for elucidating biological photosynthesis and for guiding the design of artificial light-harvesting systems.
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Design of homogeneous water oxidation catalysts
To design the ideal water oxidation catalyst, understanding of the catalytic mechanism and decomposition pathways is essential.
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Studies into electrochemical hydrogenation reactions using molecular catalysts
The electrochemical hydrogenation reaction is an alternative approach for the transformation of unsaturated bonds without the use of flammable dihydrogen gas.
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Exploring CO Adsorption on Copper: From Flat to Stepped and Curved Surfaces
This thesis highlights the significant role of surface geometry and oxidation state in determining CO adsorption behavior on copper surfaces.
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Towards artificial photosynthesis: resolving supramolecular packing of artificial antennae chromophores through a hybrid approach
Promotor: H.J.M. de Groot
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Nederland en China samen aan de slag met beter afvalwatermanagement
Nederland en China kunnen van elkaar leren slimmer om te gaan met afvalwater uit huishoudens en veeteelt. Leidse, Wageningse en Chinese wetenschappers gaan samen met betrokkenen werken aan haalbare oplossingen die milieu, gezondheid en economie vooruit helpen.
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Waarom fundamentele wetenschap ertoe doet
Wat heb je aan fundamentele wetenschap? Veel, zo bewijzen de sprekers tijdens Science Matters. Dit symposium werd op 18 maart 2016 gehouden ter ere van het tweehonderd jarig bestaan van de Faculteit der Wiskunde en Natuurwetenschappen.
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Plantaardig dieet kan helpen om CO2-reductie te bewerkstelligen
Bio-energie met koolstofafvang en -opslag is een veelbelovende methode om CO2 uit de atmosfeer te halen en tegelijkertijd energie op te wekken. Maar deze methode is controversieel, omdat er veel grond en water voor nodig is.
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Design and Synthesis of Inhibitors and Probes for Sulfoquinovosidases and Xylanases
This thesis focuses on the design and synthesis of activity-based probes and inhibitors targeting enzymes involved in the degradation of specific plant glycans.
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On Multifield Inflation, Adiabaticity and the Speed of Sound of the Curvature Perturbations
Promotor: A. Achúcarro, Co-Promotor: G.A. Palma
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Development of homogeneous catalysts for the selective conversion of levulinic acid to caprolactam
Promotors: Prof.dr. E. Bouwman, Prof.dr. E. Drent
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Towards in-cell structural study of light-harvesting complexes : an investigation with MAS-NMR
Light-Harvesting Complex II (LHCII) is responsible for light absorption and excitation energy transfer in plants and photosynthetic algae, while in high light it undergoes conformational changes by which it quenches excitations to prevent photodamage.
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Merging galaxy clusters: probing magnetism and particle acceleration over cosmic time
In this thesis, I studied the origin and evolution of the non-thermal radiation in merging galaxy clusters.
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Knots in plasma
A plasma is an ionized gas with very low electrical resistivity. As such, magnetic field lines are 'frozen in' and move with the fluid. Magnetic field lines that are linked, knotted and tangled, cannot be undone by the fluid motions.
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Photocatalytic approaches for carbon-heteroatom bond construction
Photocatalysis has emerged as a powerful tool for enabling challenging transformations in organic synthesis. This thesis explores the development of several photocatalytic reactions designed to form carbon-heteroatom bonds from less-functionalized precursors.
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Graphene transmembrane nanofluidic devices: Fabrication strategies and ion transport
This dissertation was to develop effective graphene-based nanofluidic devices by developing scalable fabrication methods and elucidating proton transport mechanisms.
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The role and analysis of molecular systems in electrocatalysis
Molecular complexes can be used as electrocatalysts for oxygen reduction, water oxidation, and/or hydrogen peroxide production.
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Temperature and pressure effects on the electrochemical CO2 reduction
In eight chapters, the thesis of Rafaël Vos covers the effect of temperature and pressure on the electrochemical CO2 reduction.
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Surface-structure dependencies in catalytic reactions
Promotor: M.T.M. Koper, Co-Promotor: L.B.F. Juurlink
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Hot Nanoparticles
Gold nanoparticles show surprisingly strong interactions with light in the visible range, which can be divided into scattering, absorption, and photoluminescence.
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On the optimization of imaging pipelines
In this thesis, topics relating to the optimization of high-throughput pipelines used for imaging are discussed. In particular, different levels of implementation, i.e., conceptual, software, and hardware, are discussed and the thesis outlines how advances on each level need to be made to make gains…
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Optimization of quantum algorithms for near-term quantum computers
This thesis covers several aspects of quantum algorithms for near-term quantum computers and its applications to quantum chemistry and material science.
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Understanding the Surface Structure of Catalysts and 2D Materials at the Atomic Scale
The work in this thesis demonstrates how to obtain an atomic-scale picture of a diverse set of complex surface structures observed using STM, under disparate conditions.
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Hydrocarbons in interstellar ice analogues: UV-vis spectroscopy and VUV photochemistry
Promotor: Prof.dr. H.L.V. Linnartz
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Data structures for quantum circuit verification and how to compare them
Quantum computers are a proposed fundamentally new type of computer. They aim to perform some computations much faster than previously possible by exploiting phenomena at the quantum scale, called superposition and entanglement.
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The Evolutionary Tale of Gaseous Exoplanets
This thesis investigates the evolution and fate of gaseous exoplanets, which are continuously shaped by stellar activity across both short and long timescales.
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Hydrogen dissociation on metal surfaces
Promotor: G. J. Kroes
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Copper complexes for bioinspired electrocatalysis relevant to the reduction of oxygen
This thesis advance our understanding and the application of molecular catalysts relevant to the reduction of oxygen as well as reduction of nitrite.
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Chemistry and Biotechnology for Sustainability
If mankind wants to survive into the 22nd century, we will need to change the way we live drastically. The human impact on our planet is everywhere, we are changing the atmosphere, the oceans and the land, leading to global warming, climate change, loss of biodiversity and pervasive pollution. There…
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Hieratic, Demotic and Greek Studies and Text Editions. Of Making Many Books There Is No End: Festschrift in Honour of Sven P. Vleeming
Dit boek is een Festschrift ter ere van Sven Vleeming met bijdragen van 38 vrienden en collega’s, onder wie bekende specialisten binnen hun respectievelijke vakgebieden.
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Nieuwe techniek om geleiding te meten in gestapelde nanomaterialen
Leidse natuurkundigen hebben een nieuwe techniek ontwikkeld om elektrische geleiding te visualiseren in materiaal van gestapelde individuele atoomlagen. Jaap Kautz en Johannes Jobst, die dit jaar de NeVacprijs ontvingen voor hun onderzoek, publiceerden in Nature’s Scientic Reports.
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‘Voedsel is onbetwistbaar een grote factor in ons watergebruik’
Van waterzuiveringsinstallaties tot een lekkere warme douche, de CO2-uitstoot ten gevolge van het watergebruik in de VS staat gelijk aan dat van 50 miljoen auto’s die een jaar lang rondrijden. In The Washington Post raadpleegt journalist Tik Root verschillende experts om te leren over manieren om ons…