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J. Ruud van Ommen 🟥

@jrvo.bsky.social
155 followers 167 following 145 posts

Professor @ChemeTUDelft @TUDelft, NL, Chemical Reactor Engineering #ParticleTech #NanoTech #ALDep #StartUps #eRefinery #Pro2Tech

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J. Ruud van Ommen 🟥 @jrvo.bsky.social · 23/09/2026
If you can't even spell my name correctly, should I trust that you can make a decent Wikipedia page about me? 🤔
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Riikka Puurunen @rlpuu.bsky.social · 19/07/2026
New #ALDep growth mode image in Wikimedia Commons, showing particle growth. Created for an article & to be used in a presentation I will (send to organizers today and) give tomorrow at www.chinaeuropesac.org/programme/. Co-authored with @jrvo.bsky.social. commons.wikimedia.org/wiki/File:Po...
Schematic illustration of possible growth modes in atomic layer deposition, including (a) layer-by-layer growth, (b) random deposition, (c-1) island growth and (c-2) particle growth. This image has been uploaded to Wikimedia Commons.
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J. Ruud van Ommen 🟥 @jrvo.bsky.social · 08/05/2026
Welcome to CHoPS 2027 — Delft! The 12th International Conference on Conveying and Handling of Particulate Solids (CHoPS) will be held 6-9 July 2027 in the Aula of Delft University of Technology. In the coming months, abstract submission will be opened. chops27.dryfta.com/registration
chops27.dryfta.com
Registration 
registration
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Retraction Watch @retractionwatch.com · 22/04/2026
"Based on titles and abstracts, in over 80% of cases the LLMs claimed that a retracted article had not been retracted (GPT OSS 120B: 82%; Gemma 3 27B: 84%; DeepSeek R1 72B: 88%)."
arxiv.org
Do Large Language Models know Which Published Articles have been Retracted?
Large Language Models (LLMs) can be helpful for literature search and summarisation, but retracted articles can confuse them. This article asks three open weights (offline) LLMs whether 161 high profi...
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J. Ruud van Ommen 🟥 @jrvo.bsky.social · 22/04/2026
What are challenges and enablers in Fluidization Technology? In our latest paper in AIChE J, Jia Wei Chew and I try to answer this. DOI.org/10.1002/aic.70397 What is needed to go from empirical design toward reliable, multi-scale, data-driven fluidization platforms? #ParticleTechnology #ScaleUp #AI
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Riikka Puurunen @rlpuu.bsky.social · 10/04/2026
New paper out! Platinum #ALDep egg-shell and uniform distribution coatings through millimeter-sized mesoporous alumina particles. Gonsalves et al., collaboration of @aalto.fi with @jrvo.bsky.social group of TU Delft and others. Great to see this out! doi.org/10.1039/D5LF...
doi.org
From egg-shell to uniform distribution of platinum by atomic layer deposition on mesoporous alumina spheres: experiments and modeling
Uniform material distribution by atomic layer deposition (ALD) inside porous materials is needed in multiple applications, including batteries and catalysis. Attaining this uniformity is not trivial, diffusion within the porous network being one of the main limiting factors. This work used a fluidized bed atmospher
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J. Ruud van Ommen 🟥 @jrvo.bsky.social · 27/01/2026
Interested in #ALDep on particles? Read our paper in Chem. Mater. 2026, 38, 1, 20–86. Open access, so everyone can read it! pubs.acs.org/doi/10.1021/... The full dataset is reposited on Zenodo (zenodo.org/records/1796...) & analysis scripts can be forked on GitHub (github.com/P4Science/AL...).
pubs.acs.org
Atomic Layer Deposition on Particulate Materials from 1988 through 2023: A Quantitative Review of Technologies, Materials, and Applications
Atomic layer deposition (ALD) is widely studied for numerous applications and is commercially employed in the semiconductor industry, where planar substrates are the norm. However, the inherent ALD feature of coating virtually any surface geometry with atomistic thickness control is equally attractive for coating particulate materials (supports). In this review, we provide a comprehensive overview of the developments in this decades-old field of ALD on particulate materials, drawing on a bottom-up and quantitative analysis of 799 articles from this field. The obtained dataset is the basis for abstractions regarding reactor types (specifically for particles), coating materials, reactants, supports and processing conditions. Furthermore, the dataset enables direct access to specific processing conditions (for a given material, surface functionality, application etc.) and increases accessibility of the respective literature. We also review fundamental concepts of ALD on particles and discuss the most common applications, i.e., catalysis (thermo-, electro-, photo-), batteries, luminescent phosphors and healthcare. Finally, we identify historical trends and provide an outlook on prospective developments.
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Martien Visser @bmvisser.bsky.social · 29/12/2025
Week-gemiddelde aandeel hernieuwbare stroom. Batterijen kunnen korte variaties overbruggen en wellicht dag-nacht. Voor variaties per week en zeker per maand is iets anders nodig, mede omdat buurlanden hetzelfde weerpatroon hebben. Voorlopig zijn dat gas & kolen. #grafiekvandedag
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Prof.dr. Beatrice de Graaf @beatricedegraaf.bsky.social · 27/12/2025
Leve de Ivoren Toren!
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The Guardian @theguardian.com · 26/12/2025
Perry Bamonte, guitarist and keyboardist for the Cure, dies aged 65
theguardian.com
Perry Bamonte, guitarist and keyboardist for the Cure, dies aged 65
Starting as a roadie and guitar tech, Bamonte joined the band in 1990 after its breakthrough album Disintegration Perry Archangelo Bamonte, longtime guitarist and keyboardist for the influential goth band the Cure, has died. He was 65. The band made the announcement on their official website on Friday. Continue reading...
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Sandra de Haan @sandradehaan.bsky.social · 01/12/2025
😯 Artikel dat glyfosaat veilig verklaarde is teruggetrokken. Vijfentwintig jaar lang functioneerde het als een anker voor de stelling dat glyfosaat en Roundup bij regulier gebruik veilig zijn voor de mens. De auteurs bleken echter te zijn ondersteund door Monsanto. www.foodlog.nl/artikel/arti...
foodlog.nl
Artikel dat glyfosaat veilig verklaarde is teruggetrokken
De bekende glyfosaat-review uit 2000 van Gary Williams, Robert Kroes en Ian Munro onder de titel Safety Evaluation and Risk Assessment of the Herbicide…
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J. Ruud van Ommen 🟥 @jrvo.bsky.social · 05/11/2025
The EU wants to develop a network of fast train connections; it should be ready by 2040. Message in Dutch: nos.nl/artikel/2589...
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J. Ruud van Ommen 🟥 @jrvo.bsky.social · 28/10/2025
A Classic Graphic Reveals Nature’s Most Efficient Traveler. Spoiler: human on bicycle. (I guess @nataliabarbour.bsky.social will like this) www.scientificamerican.com/article/a-hu...
scientificamerican.com
The Most Efficient Traveler Isn’t a Bird or a Fish—It’s You on a Bike
A famous graphic, now updated, compares locomotion in the animal kingdom
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J. Ruud van Ommen 🟥 @jrvo.bsky.social · 09/10/2025
The successes and challenges of US–Soviet scientific communication. Research exchanges between US and Soviet scientists during the second half of the 20th century may be instructive for navigating today’s debates on scientific collaboration. pubs.aip.org/physicstoday...
pubs.aip.org
The successes and challenges of US–Soviet scientific communication
Research exchanges between US and Soviet scientists during the second half of the 20th century may be instructive for navigating today’s debates on scientific c
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Nature @nature.com · 08/10/2025
BREAKING: The Nobel Prize in Chemistry has been awarded to Susumu Kitagawa, Richard Robson and Omar M. Yaghi “for the development of metal-organic frameworks” Stay tuned for more. #NobelPrize
A Nobel medal
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Kees van der Leun @sustainable2050.bsky.social · 04/10/2025
The Dutch offshore wind programme is in trouble. While 4.5 GW is in operation and another 1.5 GW under construction, the plan was to rapidly build out capacity to 21 GW by 2032. That is now out of reach. My thoughts on how this happened, and what to do about it! www.commonfutures.com/en/insights/...
commonfutures.com
Putting the Dutch offshore wind train back on the tracks
Putting the Dutch offshore wind train back on the tracks
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J. Ruud van Ommen 🟥 @jrvo.bsky.social · 26/09/2025
This week, we had a great #PARTEC2025 symposium on particle techn. Contributions from our team: Hardlife Rambwawasvika on coating particles with #ALDep for controlled release pharma. Rens Kamphorst on modeling agglomeration of nanoparticles. Gabrie Meesters on stickiness. Me on X-ray tomography.
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Kees van der Leun @sustainable2050.bsky.social · 18/09/2025
To do for Linkedin users.
Switch off permission to use your content for AI
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Rob @robertferry.bsky.social · 19/09/2025
“China’s clean-tech exports in 2024 alone will represent a 1 percent reduction in global emissions outside China.”
nytimes.com
What Will China’s Green-Tech Ambitions Cost the World?
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J. Ruud van Ommen 🟥 @jrvo.bsky.social · 18/09/2025
More delays in construction of 18 km long tunnel Germany - Denmark. The opening of the rail&road tunnel, now planned for 2029, will be delayed further. www.transport-online.nl/99954/bouw-m...
transport-online.nl
Bouw megatunnel tussen Duitsland en Denemarken opnieuw vertraagd
KOPENHAGE - De bouw van de tunnel tussen het Duitse eiland Fehmarn en het Deense eiland Lolland loopt opnieuw vertraging op, meldt de projectontwikkelaar. Het miljarden euro's kostende project moest i...
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Retraction Watch @retractionwatch.com · 08/09/2025
“It was clear to me that the ‘fast-track fee’ was a euphemism for ‘bribe,’” she told us, adding that fast-tracking is “unheard of” in mathematics.
retractionwatch.com
‘Article broker’ in China trying to hook journal editors with fishy publishing deals
Earlier this year, China’s supreme court said companies selling fake or low-quality research papers should be punished. But shady middlemen there continue to offer questionable deals to journal edi…
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J. Ruud van Ommen 🟥 @jrvo.bsky.social · 05/09/2025
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J. Ruud van Ommen 🟥 @jrvo.bsky.social · 01/09/2025
Opening of the academic year at Delft University of Technology. Theme: can you hear the music?
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Kees van der Leun @sustainable2050.bsky.social · 21/08/2025
Daring project by my former colleague @maartensta.bsky.social, in his spare time: compiling a European grid capacity (scarcity) map! www.gridcapacitymaps.eu Still a challenge to access the detailed information, due to language and other barriers, but a very useful project indeed.
Map showing where capacity information is available (for supply and demand)
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xiuqichen.bsky.social @xiuqichen.bsky.social · 13/08/2025
Come join us!
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J. Ruud van Ommen 🟥 @jrvo.bsky.social · 27/07/2025
Air Liquide has taken a final investment decision on a 200MW electrolyser to produce H2 in the Port of Rotterdam, with TotalEnergies as a major client. www.linkedin.com/posts/rotter...
linkedin.com
Another acceleration for Rotterdam’s energy transition | Rotterdam Partners
Another acceleration for Rotterdam’s energy transition Air Liquide has made the final investment decision to build ELYgator – a 200 MW large-scale electrolyzer in Maasvlakte, Port of Rotterdam. Bac...
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Kees van der Leun @sustainable2050.bsky.social · 24/07/2025
Air Liquide has taken final investment decision on its 200MW green hydrogen project at the Port of Rotterdam, after securing subsidies from the Dutch government. 23,000 tonnes of green hydrogen per year, using electricity from offshore wind. To be operational in 2027. www.h2-view.com/story/air-li...
h2-view.com
Air Liquide greenlights 200MW Rotterdam green hydrogen plant
The project will use both PEM and alkaline electrolyser technologies to produce 23,000 tonnes of hydrogen per year to meet demand in industrial and heavy-duty mobility applications.
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J. Ruud van Ommen 🟥 @jrvo.bsky.social · 11/07/2025
Een oplossing voor PFAS! Het wordt steeds duidelijker hoeveel PFAS we in ons water hebben en hoe lastig het is om ervan af te komen. Sanne Smith @tudelftceg.bsky.social heeft een oplossing om PFAS met schuim uit water te halen, in bestaande waterzuiveringssystemen. www.tudelft.nl/stories/arti...
tudelft.nl
Een schuimende oplossing voor het PFAS-probleem
Er ontstaat regelmatig ophef rondom PFAS. Het wordt steeds duidelijker hoeveel we in onze bodem en ons water hebben en hoe moeilijk het is om ervan af te komen. Sanne Smith heeft een oplossing om PFAS...
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Carel Stolker @carelstolker.bsky.social · 04/07/2025
Frans Saris is overleden Dirk van Delft schreef in NRC een prachtig in memoriam. Ik sprak hem eens over de vraag of Rechten wel een wetenschappelijke discipline is. Ik overtuigde hem niet en zei: ‘Frans, we heten dan ook Rechtsgeleerdheid’. Hij antwoordde: ‘Ja, geléérd zijn jullie wel!’ #RIP
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The Guardian @theguardian.com · 27/06/2025
Denmark to tackle deepfakes by giving people copyright to their own features
theguardian.com
Denmark to tackle deepfakes by giving people copyright to their own features
Amendment to law will strengthen protection against digital imitations of people’s identities, government says The Danish government is to clamp down on the creation and dissemination of AI-generated deepfakes by changing copyright law to ensure that everybody has the right to their own body, facial features and voice. The Danish government said on Thursday it would strengthen protection against digital imitations of people’s identities with what it believes to be the first law of its kind in Europe. Continue reading...
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Dan Garisto @dangaristo.bsky.social · 24/06/2025
NEW: NSF will be kicked out of their building. Announcement will be made tomorrow by HUD Sec. and Governor of VA. HUD will take over the NSF building over the next two years. NSF staffer: "There is no planning for NSF, no identified future location, appropriation for a new building or a move."
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J. Ruud van Ommen 🟥 @jrvo.bsky.social · 23/06/2025
Sébastien Moitzheim, CTO of @Powall, gave a great talk on continuous production of nanocoated powders at #aldale2025. He showed how to deal with particle mixing & precursor injection. #ALDep at 1bar, not using the high-purity semicon precursors, is a cost-efficient and scalable solution for coating.
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J. Ruud van Ommen 🟥 @jrvo.bsky.social · 17/06/2025
I am attending the 2nd International Workshop on Reacting Particle-Gas Systems in Magdeburg. It is hosted by the local university, named after a famous physicist and politician.
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Tessel Bouwens @tesselbouwens.bsky.social · 16/06/2025
🧼"Why does soap make bubbles?" ✍️ “Why can I draw with coloured pencils?” 💥"How does a chemical explosion work?" These are some of the questions that I answered during the Klokhuis questions day held at NEMO Science Museum on Saturday. Such a pleasure to work with these super enthusiastic children!
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FX Coudert @nanoporous.net · 06/06/2025
📢 chemists: annual ChemRxiv survey is now live, to better understand the community's use and perception of preprints, your thoughts and needs. americanchemical.co1.qualtrics.com/jfe/form/SV_... Survey takes about ten minutes, and you can enter a drawing for one of three $100 gift cards
media.tenor.com
a man in a suit and tie says survey said in front of a crowd
ALT: a man in a suit and tie says survey said in front of a crowd
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J. Ruud van Ommen 🟥 @jrvo.bsky.social · 05/06/2025
Athina Tzavara-Roussi gave a great talk on Boosting PEM electrolyser performance with niobium (oxy)nitride coating using Plasma-Enhanced ALD at #EuroCVDALD24. I co-supervise Athina with Volkert van Steijn; the work is part of the program NXTGEN HIGHTECH. #ALDep #eRefinery @tudelfttnw.bsky.social
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J. Ruud van Ommen 🟥 @jrvo.bsky.social · 03/06/2025
Great talk by Katherine Encalada Flores (group Ruud Kortlever) on Using #ALDep for Anode Protection in Offshore Green Hydrogen Production via Saline Water Electrolysis! #EuroCVD #eRefinery @tudelfttnw.bsky.social @tudelftme.bsky.social
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J. Ruud van Ommen 🟥 @jrvo.bsky.social · 03/06/2025
Een staking van NS-medewerkers in West-Nederland op 10 juni lijkt me niet handig als er al weken een staking van het hoger onderwijs gepland staat op die dag, met een bijeenkomst op het Malieveld... @fvnspoor.bsky.social @woinactie.bsky.social
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J. Ruud van Ommen 🟥 @jrvo.bsky.social · 02/06/2025
Great first day of #EuroCVD with several interesting talks: hybrid ALD/MLD, LCA of ALD and CVD processes, novel precursors, etc. We also can’t complain about the venue. #ALDep
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J. Ruud van Ommen 🟥 @jrvo.bsky.social · 15/05/2025
Dutch researchers are facing increased political pressure and threats of violence. Academic freedom is under pressure in the Netherlands, the Royal Netherlands Academy of Arts and Sciences (KNAW) said in a report on Thursday. www.knaw.nl/nieuws/knaw-... nltimes.nl/2025/05/15/d...
nltimes.nl
Dutch researchers facing increased political pressure, threats of violence
Academic freedom is under pressure in the Netherlands, the Royal Netherlands Academy of Arts and Sciences (KNAW) said in a report on Thursday. Politicians are increasingly interfering in research, the...
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Dirk-Jan Scheffers 🟥 @dirkscheffers.bsky.social · 13/05/2025
Interview in Trouw met @laurabatstra.bsky.social over onze petitie om bij de nieuwe CAO die @universiteitennl.bsky.social gaat afsluiten niet iedereen zomaar een procentuele loonsverhoging te geven. 1/ www.trouw.nl/onderwijs/ho...
trouw.nl
Hoogleraren willen minder salarisverhoging
Hoogleraar Laura Batstra en ruim duizend collega’s willen hun salarisverhoging voortaan liever in euro’s dan in procenten. Dat is eerlijker voor collega’s in lagere salarisschalen.
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Tessel Bouwens @tesselbouwens.bsky.social · 12/05/2025
I am thrilled that our latest paper is now published and can be found online @natchem.nature.com: Exo-templating via pseudorotaxane formation reduced pathway complexity in multicomponent self-assembly of M12L24 nanopsheres. www.nature.com/articles/s41...
nature.com
Exo-templating via pseudorotaxane formation reduces pathway complexity in the multicomponent self-assembly of M12L24 nanospheres - Nature Chemistry
Non-covalent and covalent chemistry can be controlled by using synthetic tools, such as templates. However, selective multicomponent self-assembly remains challenging because of the many kinetic inter...
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J. Ruud van Ommen 🟥 @jrvo.bsky.social · 01/05/2025
It was great having you @banerjeelab.bsky.social . Thanks for visiting us and giving a great lecture! We should certainly stay in touch.
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J. Ruud van Ommen 🟥 @jrvo.bsky.social · 24/04/2025
#Strike #TUDelft #WOinActie Stop de sloop!
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Ingrid Robeyns @ingridrobeyns.bsky.social · 24/04/2025
heel sterk interview van @ilgrandemichel.bsky.social (namens @woinactie.bsky.social) over de bezuinigingen op het hele onderwijs, en specifiek op de historische bezuinigingen aan de universiteiten. www.nporadio1.nl/fragmenten/d...
nporadio1.nl
Laatste dag van historische estafettestakingen van Nederlandse universiteiten
Het kabinet wil naast de in 2024 aangekondigde 1,1 miljard euro aan bezuinigingen, nog eens een half miljard euro op het onderwijs bezuinigen. Dat blijkt uit de afgelopen voorjaarsnota. Terwijl de wet...
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J. Ruud van Ommen 🟥 @jrvo.bsky.social · 22/04/2025
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Remco de Boer @studioenergie.bsky.social · 19/04/2025
To talk about the future of mining in Europe – and the innovation needed to shape it – I'm joined by Jenny Greberg, Vice President of Technology at Swedish mining-company LKAB. soundcloud.com/studio-energ...
soundcloud.com
Jenny Greberg (LKAB) on the future of mining in Europe, and the innovation needed to shape it
The European Commission's support, last month, for 47 strategic projects to boost domestic capacity in strategic raw materials, puts mining at the forefront of EU policy. Europe must mine more, faster
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Casper Albers 🟥 @casperalbers.nl · 18/04/2025
Geen studentensportvoorzieningen meer. Geen studium generale meer. Geen universiteitsmuseum meer. Geen publiekslezingen meer. Geen hortus meer. Dan ook geen Bildung meer. Geen universiteit meer. Eppo maakt echt alles kapot. 🤬 delta.tudelft.nl/article/kabi...
delta.tudelft.nl
Kabinet maakt einde aan goedkoop sporten voor studenten en personeel - Delta
Universiteiten en hogescholen mogen geen goedkope sportfaciliteiten meer aanbieden. Anders verstoren ze de markt, vindt het kabinet. Ook het culturele aanbod en de kantine worden duurder – en nog veel...
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J. Ruud van Ommen 🟥 @jrvo.bsky.social · 14/04/2025
🌍✈️ The Dutch Sustainable Aviation Fuel (SAF) Roadmap! We at TUDelft e-Refinery contributed to the National #SAF Roadmap, presented at the Deloitte Future of Energy event. This gathered industry stakeholders, government representatives, and knowledge institutes. www.linkedin.com/posts/nijenh...
linkedin.com
#saf #sustainableaviation #energytransition #innovation #netzero… | John Nijenhuis
🌍✈️ Proud to present our National Sustainable Aviation Fuel (SAF) Roadmap! We at TU Delft e-Refinery, jointly with the ministries of IenW and KGG, contributed to the National SAF Roadmap, which was ...
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