186 zoekresultaten voor “rotating ring disk electrode” in de Publieke website
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Selectivity and competition between the anodic evolution of oxygen and chlorine
Sustainable energy from wind and solar is most readily available near the sea.
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The puzzle of protoplanetary disk masses
My work focuses on a class of astronomical objects called protoplanetary disks.
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Sizing up protoplanetary disks
This thesis focuses on protoplanetary disks: flattened structures of gas and dust around young stars in which planets are expected to form and grow.
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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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Jean Ring
Faculteit der Geesteswetenschappen
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smooth after all: resolving dust and gas structures in protoplanetary disks
A large diversity of exoplanetary systems has been found, but it is still unclear what drives this diversity.
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The Demographics of Protoplanetary Disks: from Lupus to Orion
The work presented in this thesis is based on ALMA surveys of protoplanetary disks in three star-forming regions: Lupus, OMC-2, and NGC 2024.
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High-Contrast Imaging of Protoplanetary Disks
To study how planetary systems come into existence we study much younger systems still in formation.
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Algorithms for finite rings
Promotores: H.W. Lenstra, K. Belabas (University of Bordeaux)
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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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Counting problems for number rings
Promotor: H.W. Lenstra
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Linking simple molecules to grain evolution across planet-forming disks
Planets are formed in disks of gas and dust around young stars.
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Protoplanetary disk anatomy: examining the structure and chemistry of planetary birthplaces with simple molecules
This thesis examines the link between simple molecules and the underlying structure and chemistry within protoplanetary disks - the birthplaces of planets.
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Unveiling protostellar disk formation around low-mass stars
Promotor: Prof.dr. E.F. van Dishoeck
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E.H.H.M. Rings
Faculteit Geneeskunde
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On some classes of modules and their endomorphism rings
Promotores: Prof.dr. H Lenstra, Prof.dr. A Facchini (Padova University)
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Inverse problems for universal deformation rings of group representations
Promotor: Prof.dr. P. Stevenhagen
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Mind the gap: gas and dust in planet-forming disks
Promotores: Prof.dr. E.F. van Dishoeck, Prof.dr. C.P. Dullemond
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From midplane to planets : the chemical fingerprint of a disk
This thesis addresses the chemical processes that determine the compositions of giant planet atmospheres.
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Adsorption and catalysis on Pt and Pd monolayer-modified Pt single crystal electrodes
The focus throughout this thesis will be on gathering fundamental studies of the detailed structure and composition of the electrode/electrolyte interface effect on the rate and mechanism of key electrocatalytic reactions.
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Competition on bird feeeders between introduced Ring-necked parakeets and native bird species in the Netherlands
Does the presence of Ring-necked parakeets negatively influence feeding and feeding behaviour of native bird species on artificial bird feeders and if so, what are possible solutions?
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Electroreduction of nitrate and carbon dioxide on copper electrodes: a mechanistic study
In this thesis we have discussed several parameters that affect the electrochemical conversion of enviromentaly harmful molecules such as nitrates and carbon dioxide to more valuable and less deleterious compounds, in order to cast light onto the mechanism of the reaction to achieve an efficient and…
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Dynamics and radiation from tidal disruption events
When a star gets too close to a supermassive black hole, it is torn apart by strong tidal forces in a tidal disruption event (TDE).
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Leidse astronomen over de ringen van Saturnus
Saturnus staat bekend om zijn ringen. Uit recente data van de ruimtesonde Cassini blijkt nu echter dat de planeet deze iconische ringen niet altijd heeft gehad. Leidse astronomen Yamila Miguel en Matthey Kenworthy reageren in verschillende media op de ontdekking.
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Inextricable ties between chemical complexity and dynamics of embedded protostellar regions
Promotor: E. F. van Dishoeck, Co-promotor: C. Walsh
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Uncovering the ingredients for planet formation
This thesis discusses the physical and chemical processes than influence the composition of forming planets.
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Astronomen vermoeden planeet met gigantische ringen rond waarneembare ster
Astronomen van onder meer de Sterrewacht Leiden hebben een ongebruikelijke begeleider ontdekt van een zeer jonge ster in het sterrenbeeld Orion. Dat grote object, mogelijk een planeet, schuift iedere 2,5 jaar voor de ster langs, waardoor het sterlicht met 20 procent wordt gedimd. Binnenkort verschijnt…
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Multiple star formation: chemistry, physics and coevality
Multiple stars, that is two or more stars composing a gravitationally bound system, are common in the universe.
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Jonge sterrenstelsels hebben ook al spiraalarmen, balken en ringen
Jonge sterrenstelsels zijn minder rommelig dan verwacht en blijken ook al spiraalarmen, balken en ringen te bevatten. Dat stelt een internationaal team van onderzoekers onder leiding van assistant professor Jacqueline Hodge. De jonge, ver van ons vandaan staande sterrenstelsels waren tot nu toe wazige…
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Eerste licht voor camera die exo-ringen gaat spotten
Sterrenkundigen uit onder andere Leiden hebben in Zuid-Afrika de eerste astronomische opnamen gemaakt met de door hen gebouwde bRing-camera. Deze camera zal een jaar lang gericht staan op de planeet die rond de ster Beta Pictoris draait, om te kijken of deze planeet een ringenstelsel heeft.
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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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Cathodic corrosion
Cathodic corrosion is a relatively unknown phenomenon that can severely etch metallic electrodes at cathodic (negative) potentials.
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Extrasolar Planet Detection Through Spatially Resolved Observations
Promotor: I. Snellen, Co-Promotor: M. Kenworthy
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Resolving the building blocks of galaxies in space and time
We investigate the buildup of galaxies from various vantage points. The first two chapters focus on the stellar content of galaxies, especially the distribution of stellar masses at birth and potential variations therein in various galactic environments.
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X-ray spectroscopy of interstellar dust: from the laboratory to the Galaxy
In this thesis, we present new laboratory data of interstellar dust analogues.
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Photosynthetic light reactions at the gold interface
Promotor: T.J. Aartsma, Co-promotor: R.N. Frese
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'Q-wires': Synthesis, electrochemical properties and their application in electro-enzymology
An objective of this research was to achieve direct, well-defined and non-rate-limiting electron transfer between respiratory enzymes and the electrode surface by means of 'Q-wires'.
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Sizing up protoplanetary disks
Promotie
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Iron complexes as electrocatalysts for the water oxidation reaction
In this dissertation, the synthesis and characterization of a series of iron complexes based on different ligand platforms are described.
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Small scale kinematics of massive star-forming cores
Promotor: Prof.dr. E.F. van Dishoeck, Co-Promotor: M.R. Hogerheijde
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Algorithms for finite rings
Promotie
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Leidse archeologen ontdekken vroege vorm van geld uit Prehistorisch Centraal-Europa
In de vroege Bronstijd gebruikten mensen bronzen voorwerpen als betaalmiddel. Tot die conclusie komen archeologen Maikel Kuijpers en Catalin Popa in een PLOS ONE artikel dat 20 januari verschijnt.
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Shtuka cohomology and special values of Goss L-functions
Assuming everywhere good reduction we generalize the class number formula of Taelman to Drinfeld modules over arbitrary coefficient rings.
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High-Contrast Imaging of Protoplanetary Disks
Promotie
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The puzzle of protoplanetary disk masses
Promotie
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Electroreduction of nitrate and carbon dioxide on copper electrodes
Promotie
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smooth after all: resolving dust and gas structures in protoplanetary disks
Promotie
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Exploration on and of Networks
This dissertation consists of two parts, with the common theme "Exploration on and of Networks".
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Class invariants for tame Galois algebras
Promotores: B. Erez, P. Stevenhagen, Co-Promotor: B. de Smit
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From Midplane to Planets: The Chemical Fingerprint of a Disk
Promotie