918 zoekresultaten voor “raw materials” in de Publieke website
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CERA - Certification of Raw Materials
CERA (CErtification of RAw Materials) is a four-year project that will develop a standardized certification scheme ensuring environmental, social and economic sustainability in extraction, processing, trading and manufacturing of all mineral raw materials. It will guarantee traceability of certified…
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Solution for Critical Raw Materials - an European Export Network (SCRREEN)
Where and how are critical materials currently used and how can this information be used to develop scenarios about their future demand.
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CircuMat | Circular city & Industry park MATerials metabolism learning package and assessment tool
Some examples of research questions include: What framework of circular strategies should local practitioners use? How should practitioners organize their monitoring of the circular economy activities in the region of interest? What are the main products that have the most circular potential in the…
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RaMa-SCENE
A scenario building web-tool and knowledge package to enable multi-level decision making for the transition to the Circular Economy
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MICA – Material Intelligence Capacity Analysis
Can we develop a platform for raw materials intelligence?
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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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Materials Innovative Technologies Assessment (MIN-TEA)
How can prospective LCA be streamlined in a way that its practical application in research and technology development increases?
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Lithium-ion batteries and the transition to electric vehicles
The transition to electric vehicles (EVs) reduces vehicle emissions to combat climate change. EVs raise concerns regarding the production of lithium-ion batteries and related emissions; while batteries can also provide energy storage services for the electricity system.
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Material flow analysis for the C&D waste management systems in the Netherlands, Belgium, Spain and Finland
What are the flows of C&DW (e.g. bricks, concrete, gypsum and wood) in the case study countries ? How to define the specification for each material to be quantified? What indicators should be used to identify the pattern of each C&DW management system? How to interpret the MFA results in relation…
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Interpreting lithic raw material variability in Middle Palaeolithic contexts
Promotie
- Material Culture (5 ECTS)
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Extreme verschijnselen in zachte materialen
Wat is mechanica van zachte materialen (o.a. schuim, zand)?
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Conference: Developments in Deep-Sea Mining and the EU Critical Raw Materials Act
Congres/symposium
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A macro level assessment of material circularity
A sustainable resource management is an essential aspect to satisfy the current human needs without compromising the needs of future generations.
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Material constraints of selected energy pathways
Examining if large scale application of new energy pathways can be constrained by materials and emissions.
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Development of life cycle assessment for residue-based bioenergy
Promotores: Prof.dr.G.R. de Snoo and Dr. R. Heijungs
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Slimmer omgaan met energie en materialen
De wereldbevolking is in de afgelopen eeuw exponentieel gegroeid, en daarmee ook onze behoefte aan energie en materialen. Willen we in de toekomst ook in welvaart leven, dan zullen we onze economie en consumptie radicaal anders moeten inrichten. Wetenschappelijk onderzoek laat zien hoe dat kan.
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Slimmer omgaan met energie en materialen
De wereldbevolking is in de afgelopen eeuw exponentieel gegroeid, en daarmee ook onze behoefte aan energie en materialen. Willen we in de toekomst ook in welvaart leven, dan zullen we onze economie en consumptie radicaal anders moeten inrichten. Wetenschappelijk onderzoek laat zien hoe dat kan.
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The material side of the energy transition: Analyzing flows and stocks of critical and other materials
Promotie
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Consortium RawMatTERS wint innovatieprijs
Het consortium RawMatTERS, waar de Universiteit Leiden deel van uitmaakt, heeft de ‘Knowledge and Innovation Communities (KIC) Raw Materials’ gewonnen. Deze prijs is bestemd voor innovatief onderzoek naar grondstoffen.
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Geometric phases in soft materials
Geometric phases lead to a nontrivial interference result when an electron's different quantum mechanical paths choices encircle a magnetic coil in an Aharonov-Bohm experiment.
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Material Flows in the City of Amsterdam
An account of the total of material flows going in, out and through Amsterdam.
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Stock-driven Scenarios on Global Material Demand
The role of material production as a driver of environmental impacts is increasing, which calls for a better understanding of global material flows. This thesis explores the role of in-use stocks of products, buildings and infrastructure as a key driver of global material demand and discusses the implications…
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Low energy electron transmission through layered materials and chiral organic films
In this Ph.D. thesis we study the interaction of low energy electrons with thin materials, namely layered materials (graphene, hexagonal boron nitride, molybdenum disulfide) and organic films. At these low energies the quantum mechanical wavelength of the electron wave function is in the order of a…
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Supramolecular polymer materials for biomedical applications and diagnostics
Self-assembly is an abundant process in nature and is vital to many processes in living organisms.
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Functional fluorescent materials and migration dynamics of neural progenitor cells
In this thesis, time-lapse fluorescent microscopy plays a pivotal role in investigating functional materials within living cells as well as the migratory behaviour of neural progenitor cells.
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The energy and material related impacts of the transition towards low-carbon heating: a case study of the Netherlands
This dissertation investigates the energy and material related impacts of the transition towards a low-carbon heating system in the Netherlands, in the context of its 2050 climate and circular economy policy goals.
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Mononuclear spin-transition materials based on the bapbpy scaffold
Promotor: Prof.dr. E. Bouwman, Co-Promotor: S. Bonnet
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On quantum transport in flat-band materials
The studies in this thesis are focused on the physical effects in the flat band materials. The results contain the discovery of strong enhancement of RKKY spin-spin interactions with specific geometric arrangement and dynamical generation of excitonic order parameter with high magnitude.
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Squaramide-based supramolecular materials for 3D cell culture applications
A new type of tripodal squaramide-based supramolecular hydrogels is developed and studied.
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Fermions and Bosons: Excitons in strongly correlated materials
Promotors: Prof.dr. J. Zaanen, Prof.dr.ir. H. Hilgenkamp
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PhD position: ultrafast broadband-THz spectroscopy of perovskite materials
Wiskunde en Natuurwetenschappen, Leids Instituut voor Chemisch Onderzoek (LIC)
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Probing quantum materials with novel scanning tunneling microscopy techniques
This thesis described the development of novel scanning tunneling microscopy techniques to investigate strongly correlated electronic states in quantum matter.
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Development of life cycle assessment for residue-based bioenergy
Wat zijn de belangrijkste thema's in het uitvoeren van systemen voor bio-energie ?
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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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Size effects in microstructured superconductors and quantum materials
We find ourselves in an era of transition, not just towards a more computing- and data-driven society but also away from unsustainable fossil fuels as an energy source.
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Superlattices in van der Waals materials: A Low-Energy Electron Microscopy study
n this PhD thesis, the recombination of different atomic lattices in stacked 2D materials such as twisted bilayer graphene is studied. Using the different possibilities of Low-Energy Electron Microscopy (LEEM), the domain forming between the two atomic layers with small differences is studied.
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Functionalized two-dimensional membranes and materials for solar-to-fuel devices: a multiscale computational approach
In the current global context, there is a pressing need to address sustainable energy supplies to safeguard our Planet and its ecosystems. The choices made by human society have a significant impact on genetic evolution and climate.
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Integrated life cycle assessment and life cycle costing of concrete recycling in the Netherlands
Integrating life cycle assessment (LCA) with life cycle costing (LCC) offers the opportunity to simultaneously analyze the environmental and economic aspects of product alternatives, for the integration of which a unified computational has been proposed by Heijungs et al. (2013) [1]. The project aims…
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reactions to synthesize novel hybrid nucleic acid-graft copolymeric materials
Kieltyka
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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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Broosheid van materialen gebruiken als mechanische functionaliteit
Afhankelijk van de omstandigheden kunnen korrelige materialen zoals zand verschillende vormen aannemen. Hoe komt deze verandering en het uiteenvallen van deze materialen tot stand? Natuurkundige Corentin Coulais ontwierp een model om de geheimen achter dit fenomeen te ontrafelen. Op 7 november verscheen…
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Speurtocht naar nieuwe materialen
Zoeken naar materialen met eigenschappen die in de natuur niet voorkomen. Daar gaat de oratie van hoogleraar Sense Jan van der Molen over. Hij vertelt in het Leidsch Dagblad en op BNR Nieuwsradio over hoe hij ‘sjoelt met elektronen’ om zulke materialen te bestuderen.
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Natuurkundigen ontwikkelen techniek om ‘slimme’ materialen te doorgronden
Natuurkundigen van de Universiteit Leiden en Stichting FOM hebben een manier gevonden om de eigenschappen van 'slimme', door de mens ontworpen materialen beter te begrijpen. Hun methode onthult hoe op elkaar gestapelde laagjes in zo’n materiaal samenwerken om het geheel tot een hoger niveau te tillen.…
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Gast lezing door Ernst Worrell over: "Material Matter: Connecting Energy and Material Efficiency"
Op Dinsdag 10 Maart 2015 - 10h zal Ernst Worrell, professor aan de Universteit Utrecht met een leerstoel op
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Materialen van toen bevatten lessen voor nu
De studie van oude materialen en de manier waarop ze gemaakt zijn, levert baanbrekende inzichten in het verleden op. Bovendien is het samenspel tussen mensen en materialen voor onze huidige maatschappij zeer relevant, betoogt Ann Brysbaert, hoogleraar 'Ancient Technologies, Crafts and Materials' bij…
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Materialen van zelf-draaiende deeltjes
Materialen zijn gasvorming, vloeibaar of vast, afhankelijk van de manier waarop hun moleculen reageren op temperatuur en druk. Maar wat als de bouwstenen zelf-draaiende deeltjes zijn in plaats van gewone moleculen? Theoretisch natuurkundigen hebben ontdekt wat de fase bepaalt van die kunstmatige materialen.…
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Europa leeft als enige op kosten van andere continenten
Europa kan haar consumptieniveau alleen handhaven door structureel gebruik te maken van hulpbronnen van elders. Dat is de conclusie van een artikel begin september gepubliceerd in het prestigieuze tijdschrift Global Environmental Change. Leidse wetenschappers coördineerden het onderzoek.
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Geribbeld plastic onthult principe voor programmeerbare materialen
Martin van Hecke en Anne Meeussen publiceren in het tijdschrift Nature over mechanische metamaterialen. Ze hebben een nieuwe klasse multistabiele materialen ontdekt. Dit is gebaseerd op ribbeltjes plastic.
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De jacht naar Europese metalen voor energietransitie
In de overgang naar duurzame energie zijn er veel metalen nodig. Momenteel importeert Europa die vooral vanuit China en Rusland. We moeten ook kijken naar ontginning in Europa, zegt industrieel ecoloog René Kleijn in de NRC. Ook in Trouw en op NPO1 licht Kleijn de uitdagingen van de energiemarkt toe…