I don't know what's more stupid: #OpenSSH using different authentication flow depending on whether you have a `.pub` file in addition to the private key or not, or #GitHub suddenly starting to reject one of the two valid RFC 4252 workflows.
#SSH
It looks like HP have actually put a lot of thought into their Sure Start feature:
https://h10032.www1.hp.com/ctg/Manual/c05163901.pdf
A section dedicated to UX, and a good explanation of the EC initiating the boot flow - kudos!
On Website Technicals (2026-05) - Tech updates: Podbean quiet, Pint of Science, dump damping, router reboots, noon flow easing. - https://www.earth.org.uk/note-on-site-technicals-108.html
Smoke Gets In Your...Hole Where Your Soul Should Be
MAGA may have a set a new mark for belligerent stupidity
BILL MCKIBBEN
JUL 20
...wildfires, and hence smoke, will persist all summer, and since the hot world we’re creating produces ever more wildfire and hence an endless supply of future smoke, I think it’s worth taking a moment to get all this on the record.
Also, the flow of smoke down from Canada has produced a perfect MRI of the MAGA nervous system, reveali…
un_migrations: UN migration stock (2015)
A network of migration between countries, collected by the United Nations. A directed edge gives the flow of migration, and an edge property gives the number of migrants, for each given year and sex. Estimates are presented for 1990, 1995, 2000, 2005, 2010 and 2015 and are available for all countries and areas of the world. The estimates are based on official statistics on the foreign-born or the foreign population.
This network has 232 no…
Long-horizon prediction of three-dimensional wall-bounded turbulence with CTA-Swin-UNet and resolvent analysis
Bo Chen, Yitong Fan, Jie Yao, Weipeng Li
https://arxiv.org/abs/2605.17888 https://arxiv.org/pdf/2605.17888 https://arxiv.org/html/2605.17888
arXiv:2605.17888v1 Announce Type: new
Abstract: Long-horizon prediction of three-dimensional (3D) wall-bounded turbulence with machine-learning methods remains a challenging task, due to the rapid accumulation of autoregressive errors and the substantially computational cost. To address these challenges, we present a hybrid machine-learning framework, in which a channel-time-attention Swin-UNet (CTA-Swin-UNet) and a multi-time-scale fusion correction (MTFC) strategy are developed to predict the turbulent flow fields in a wall-parallel plane, with affordable computational cost. Then, 3D flow fields are reconstructed via a resolvent-based spectral linear stochastic estimation (SLSE), rooting from the predicted planar flow. Results show that the CTA-Swin-UNet outperforms the baseline models (LSTM, FNO and traditional Swin-UNet) in both single-step prediction and autoregressive rollouts, indicating the effectiveness of introducing the CTA module into the Swin-UNet architecture. At the same temporal interval, the CTA-Swin-UNet remains stable for approximately 150 rollout steps, while the baseline models fail within 20 to 50 rollout steps. After introducing the MTFC strategy, a longer horizon upto 300 steps is achieved. Using the resolvent-based SLSE reconstruction further recovers the 3D flow structures and energy spectral distributions from the predicted planar inputs, which demonstrates that the proposed framework provides an effective and computationally efficient approach for long-horizon autoregressive prediction of 3D wall-bounded turbulence.
toXiv_bot_toot
as the kids say: "Eve flow like H2O" :-) https://youtu.be/CymCVrKpLzw
📦 upsert() keeps a single instance alive for singleton UI like toasts, loading overlays or progress bars — instead of stacking a new one, it updates the active instance with fresh data, no duplicates
⚙️ Mutation Flow: useMutationFlow from react-call/mutation-flow wires a callable straight to async backend actions, managing pending state and keeping the dialog open with a spinner until the promise resolves — so users can retry without losing their place, with end-to-end typed payloads…
On flow, familiarity, culture and zombie flow.
I think I'd argue the Fediverse does not encourage zombie flow, and is maybe "the right kind of hard" as Derek Thompson puts it here. Fascinating stuff.
https://www.derekthompson.org/p/how-zombie-flow-took-over-culture
Verteilung der #Speicherkapazitäten für Redox-Flow-Batterie nach Bundesland in #Deutschland mit Stand vom 30.06.2026.
10 nicht aktive und 0 Redox-Flow-Batterien ohne Inbetriebnahmedatum wurden ausgefiltert.
Der Datenbestand enthält ggf. unplausible Datensätze.
…
at the stone, on night 3 of her residency, yoona kim (on bowed anaeng) leads an #improv trio with joe morris on guitar & chris corsano on drums, drone splatter & fire fragments & occasional dramatic flow. #nyc #jazz
Dynamic Evolution of Pore-scale Heterogeneity and Transport Conditions Control Mineral Dissolution Regimes
Jinlei Wang, Yongfei Yang, Martin J. Blunt, Branko Bijeljic
https://arxiv.org/abs/2605.18223 https://arxiv.org/pdf/2605.18223 https://arxiv.org/html/2605.18223
arXiv:2605.18223v1 Announce Type: new
Abstract: Mineral dissolution in porous media is classically partitioned into static regimes within the Pe-Da plane, but this framework fails to capture the dissolution behavior of structurally complex rocks. Using three-dimensional micro-continuum simulations on micro-CT images of three rock samples spanning a wide range of pore-space heterogeneity, we track the joint evolution of dissolution morphology, velocity distribution, and reaction rate. Our results reveal that initial flow heterogeneity controls accessibility of reactants, thereby controlling the dissolution regime,reshaping them as dynamic trajectories. Channeled dissolution emerges as a simultaneous reorganization of structure and flow, and the resulting permeability-porosity relationship cannot be captured by a single power-law. The effective power-law exponent increases with heterogeneity and changes over time, reaching a maximum of 9.8, 18.0, and 40.9 for the three samples. Consequently, the effective reaction rate falls one to three orders of magnitude below the uniform dissolution prediction, with the suppression scaling with flow heterogeneity due to mass transfer limitations in channeled dissolution.
toXiv_bot_toot
I think we're almost ready to switch off GitHub Actions for ngscopeclient!
The only known issue with the in house CI is that the binary package generation for apple silicon MacOS DMGs is failing.
All platforms including MacOS are running builds and tests without issue. We're also running cppcheck/clang-analyzer static analysis (something the GH builds did not do, although they did run CodeQL) although I am trying to overhaul that since the current flow for invoking clang-…
I totally understand why communities use Discord for hosting chat/announcements/etc., but when something goes wrong, it's a complete disaster and it seems there's nothing you can do about it except hope someone over there gets the error messages.
Just had to trick it into letting me use a public invitation (it complained about "invitation not valid" through the normal onboarding flow; had to use the app on my phone).
I wish IRC had just… kept up with demand. )-:…
Authenticating users through a #godot game with device flow authentication using #dotnet. Pretty neat that it just works, even with a QR code (the URL must be publicly accessible to work on your phone).
Sources: Wispr AI, the developer of the voice dictation tool Wispr Flow, is in talks to raise ~$260M in a round that could more than double its valuation to $2B (Bloomberg)
https://www.bloomberg.com/news/articles/2026-05-12/ai…
The Friendship Tree Podcast
Building a new system that connects people, other charities, and companies; so that more money can flow to where it actually makes a difference...
Great Australian Pods Podcast Directory: https://www.greataustralianpods.com/the-friendship-tree/…
Brain implants for restoring vision to the blind need to stimulate large numbers of neurons with electrodes, many times per second. So... https://bioniclab.substack.com/p/what-happens-to-blood-flow-when-you The stimulation paradox: Activating neurons starves them of…
Very excited about the new stateful components model in Kitten¹ that I’m looking forward to releasing this week (finally) and the amount of visibility you can now get into the flow of your Kitten apps in the Kitten Interactive Shell (REPL)².
Since the new model is a breaking change (Kitten is prerelease) I’m in the middle of updating our own apps/sites and I still need to document everything. So it will take me a few days to do all that but then I’m very much looking forward to focussi…
I lost all my sympathy for Israeli politics. It started decades ago. But the hate (which does not really differ from the hate of Hamas and Hisbollah towards Israel) against Palestinians, the war crimes and the murdering of civilians forced me to engage as a critic.
#Israel
#HumanRightsViolations
SF-Flow: Sound field magnitude estimation via flow matching guided by sparse measurements
Ege Erdem, Shoichi Koyama, Tomohiko Nakamura, Orchisama Das, Zoran Cvetkovi\'c
https://arxiv.org/abs/2605.10398 https://arxiv.org/pdf/2605.10398 https://arxiv.org/html/2605.10398
arXiv:2605.10398v1 Announce Type: new
Abstract: Reconstructing a 3D sound field from sparse microphone measurements is a fundamental yet ill-posed problem, which we address through Acoustic Transfer Function (ATF) magnitude estimation. ATF magnitude encapsulates key perceptual and acoustic properties of a physical space with applications in room characterization and correction. Although recent generative paradigms such as Flow Matching (FM) have achieved state-of-the-art performance in speech and music generation, their potential in spatial audio remains underexplored. We propose a novel framework for 3D ATF magnitude reconstruction as a guided generation task, with a 3D U-Net conditioned by a permutation-invariant set encoder. This architecture enables reconstruction from an arbitrary number of sparse inputs while leveraging the stable and efficient training properties of FM. Experimental results demonstrate that SF-Flow achieves accurate reconstruction up to \SI{1}{kHz}, trains substantially faster than the autoencoder baseline, and improves significantly with dataset size.
toXiv_bot_toot
Shear alignment and tensorial Taylor--Aris dispersion of Brownian rods in a circular tube
Jingsen Feng, Xu Chu
https://arxiv.org/abs/2605.17614 https://arxiv.org/pdf/2605.17614 https://arxiv.org/html/2605.17614
arXiv:2605.17614v1 Announce Type: new
Abstract: Brownian rods disperse in pressure-driven flow through a coupling between axial shear, anisotropic translational diffusion and Jeffery--Brownian rotation. Classical tube Taylor--Aris theory treats transverse mixing as a scalar process, and existing passive-rod reductions have mainly addressed planar geometries. A circular tube adds two ingredients: the shear strength varies with radius and freely rotating rods sample a three-dimensional orientation space. We formulate a tensorial Taylor--Aris theory for dilute axisymmetric rods in Poiseuille flow by solving the local steady orientation Fokker--Planck problem and using its second moments to close a conservative axisymmetric transport equation. The long-wave reduction shows how each part of the diffusion tensor enters the one-dimensional limit. The radial diffusivity sets the invariant cross-sectional measure and the cell problem for the leading Taylor coefficient; the radial--axial component produces an inverse-P{\'e}clet correction to the migration speed; the axial component gives the direct diffusivity. The central mechanism is the streamwise alignment generated in high-shear annular layers. Alignment reduces radial diffusivity there, shifts the long-time sampling of the velocity profile toward slower streamlines, and amplifies the radial cell response. In strong shear this raises the Taylor coefficient by about \(23\%\) for aspect ratio \(p=1000\) and by about \(30\%\) in the infinitely slender limit, approaching the fully aligned bound. Direct simulations of the full tensorial equation validate the asymptotic coefficients. The same radial mixing operator also gives a Sturm--Liouville spectral model that tracks finite-time relaxation from different radial injections to the long-time Taylor regime.
toXiv_bot_toot
lazypost: Is there a nice way to get oauth tokens from the command line with a tool that starts a special webserver just for the flow and then opening the web browser (with the oauth site you're connecting to then redirecting to localhost/that special webserver) to spit out the bearer token at the end?
at_migrations: Austrian internal migrations (2002-2022)
A network of migrations between municipalities in Austria, from 2002 to 2022. A weighted directed link from source to target indicates a migration flow from these two municipalities. Edges are annotated with migration volume (number of people), nationality, sex, and year.
This network has 2115 nodes and 2908569 edges.
Tags: Social, Economic, Travel, Weighted, Politlcal, Timestamps, Metadata
Period Tracker MOD APK [No Flow INFINITE Monthly Skips]
Oh, es gibt #MTB Trails bei #innsbruck ?
Auf 2,2 km bietet das Gelände abwechslungsreiche Lines für jedes Fahrniveau, darunter eine Flowline, eine Jumpline, naturbelassene Singletrails und ein XC-Loop mit kurzen Uphill-Passagen. Zwei schwarze, zwei rote und eine blaue Strecke sorgen für viel Fah…
This week's climate progress is about connection:
The Green Climate Fund unlocked nearly $6B for adaptation and mitigation projects in vulnerable countries.
Indigenous women in Guatemala are scaling climate-resilient farming with drought-tolerant crops and agroforestry.
Twelve opened AirPlant One, making jet fuel from captured CO2 and renewable power.
Sign up for the For People And Planet climate solutions digest:
You can now donate to Olivia Chow campaign for mayor.
If you have the spare cash flow, the refund from the city after the election is actually quite generous. $100 donation = $75 refund later
https://www.oliviachow.ca/donate
Getting some really nice current density plots, TDR traces, and animations from optimizing the connector launches on the LATENTRED switch engine board.
Might make a short video walking through some of it - not a full tutorial on the flow but some of the stuff will be hard to get across in a stationary format.
"It is no coincidence that tech oligarchs in the U.S. have been on a media purchasing spree, scooping up newspapers, TV stations and social media networks - especially in the past 4 years. Controlling the flow of information is a potent thing - and we should be very careful of whom we give that power to."
https:…
Verteilung der #Speicherkapazitäten für Redox-Flow-Batterie nach Bundesland in #Deutschland mit Stand vom 31.05.2026.
9 nicht aktive und 0 Redox-Flow-Batterien ohne Inbetriebnahmedatum wurden ausgefiltert.
Der Datenbestand enthält ggf. unplausible Datensätze.
👉…
#PhantastikPrompts 12.06.:
Womit belohnst du dich nach einer erfolgreichen Schreibsession?
Mit der Erlaubnis an mich selbst, vor dem Fernseher aufs Sofa zu fallen und dort früher oder später einzuschlafen.
Schreiben findet überwiegend nach dem Brotjob statt, und wenn ich besonders erfolgreich schreibe, heißt das, ich war "im Flow", wo ich meine Bedürfnisse ni…
Electrolyte flows under magnetic fields: Manning-like counterion condensation in one dimension
Yoav Tsori, Hannes Uecker
https://arxiv.org/abs/2605.18076 https://arxiv.org/pdf/2605.18076 https://arxiv.org/html/2605.18076
arXiv:2605.18076v1 Announce Type: new
Abstract: We present a theoretical framework for unidirectional electromagnetohydrodynamic flow of dilute electrolytes under perpendicular magnetic fields. Starting from the Navier--Stokes equation coupled with the Poisson--Nernst--Planck formulation, we show that the problem admits a sequential decoupling: the Stokes equation is solved first to obtain the velocity profile, which defines a hydrodynamic potential entering the Nernst--Planck description of ions. This Lorentz-force-induced potential competes with electrostatic attraction and significantly alters ionic distributions. We analyze this mechanism in two canonical geometries. In planar Couette shear, it produces a Manning--Oosawa-like condensation transition in one dimension, a phenomenon absent in classical electrostatics. We derive an eigenvalue equation predicting a sharp threshold between counterion enrichment and depletion at the charged wall. In cylindrical Taylor--Couette flow, the same effect shifts the classical Manning criterion by a magnetic parameter, enabling tunable control of condensation. These findings extend Manning--Oosawa phenomenology to driven, non-equilibrium systems and provide a basis for magnetic manipulation of screening in electrolytes, with implications for microfluidics, electrochemical systems, and nonlinear boundary-value theory.
toXiv_bot_toot
from my link log —
agitjo: manage Forgejo PRs with AGit-Flow in Emacs.
https://codeberg.org/halvin/agitjo
saved 2026-06-23 https://dotat.at/:/LHM1Y.h…
good morning!
did some early-morning ponding on the #pandemicPond this morning.
The water level was unusually low, so I started looking around for leaks or blocks. I have been wanting to cut down the vertical PVC at the top of the bog barrels to make it not stick out so much and blend in a little nicer and also because it would reduce the height for the pump, so increase flow.
Well it turns out that connection, where the black pipe goes into the white PVC in the barrel, was a little loose and some water was leaking out and adding to the evaporation budget.
So that gave me the push to do the small modifications on the top end of the pipe. It was also a good time since turning off the pump meant the top pond would drain into the bottom pond. When the system is full, that would normally cause the bottom pond to over flow, but since it was all low, no extra water was lost.
I cut the inlet down a few inches under the water in the bog barrel to move the T down and then cut another 6in from the top pipe to snug it all up.
Then I also tightened up the connections for the over flow/air valve and added an elbow to keep water from escaping out the valve outlet. Only took about 5 minutes. I have been wanting to do this for months. 😂
Result:
black pipe doesn't curl as high over the barrel ✅
no more leak from the PVC connection ✅
no more water escaping from the air valve ✅
noticeably more flow over the waterfall! ✅
Pump is back on and water is replenished from the rain barrel ✅
the fish are happy! 🐟 and me too. ✅
oh oh! did I tell you we have a new fish! The top pond fish had babies and it looks like one has survived to be big enough not to be cannibalized. 😂 It is very skittish and is still mostly black so I havent got a good picture of it yet.
#pondlife #diy #gardening #portalberni
The depressing and infuriating thing is that the people behind this are probably convinced that they‘re doing something helpful and useful:
https://agentic-commons.org/
Spatio-Temporal Signatures of Intermittency in Helically Rotating Turbulence through Topological Data Analysis
Snigdhashree Mallick (International Institute of Information Technology, Bangalore, India), Yashwanth Ramamurthi (International Institute of Information Technology, Bangalore, India), Shiva Kumar Malapaka (International Institute of Information Technology, Bangalore, India), Amit Chattopadhyay (International Institute of Information Technology, Bangalore, India)
https://arxiv.org/abs/2605.17560 https://arxiv.org/pdf/2605.17560 https://arxiv.org/html/2605.17560
arXiv:2605.17560v1 Announce Type: new
Abstract: A central challenge in hydrodynamic turbulence is identifying precisely when, and at which length scales, strong turbulent fluctuations (STFs) emerge and develop into intermittent events, which are often obscured by conventional statistical diagnostics. We address this problem by applying a Topological Data Analysis (TDA) framework to reveal the spatiotemporal signatures of intermittency in low-resolution ($128^3$) helically rotating turbulent flows. Vorticity magnitude and length-scale (eddy size) fields are used as scalar observables for TDA: vorticity characterizes rotational dynamics that generate multiscale flow structures, while length-scale fields encode the scales at which intermittent activity arises. Their evolving topology is quantified using persistence diagrams and Wasserstein-distance metrics. Compared with traditional statistical approaches, this framework is more sensitive to localized and short-lived flow variations, enabling clearer detection of intermittent behavior. Pronounced variations in Wasserstein-distance heatmaps provide direct signatures of STFs across space and time. Together, these results demonstrate that TDA offers an effective complementary tool for detecting STFs that lead to intermittency within turbulent regime.
toXiv_bot_toot
"Australian households and businesses installed more rooftop solar last month than in any other month on record"
Changes to the Cheaper Home Batteries Program may have "triggered a surge in battery demand with a meaningful flow-on effect to solar.”
https://www.
On Website Technicals (2026-05) - Tech updates: Podbean quiet, Pint of Science, dump damping, router reboots, noon flow easing... - https://www.earth.org.uk/note-on-site-technicals-108.html
Analysis: the combined free cash flow of Amazon, Alphabet, Microsoft, and Meta is expected to fall to ~$4B in Q3 and hit its lowest full-year level since 2014 (Financial Times)
https://www.ft.com/content/b3dfaba9-17a2-4fac-90fe-4ab3ca7c9494
at_migrations: Austrian internal migrations (2002-2022)
A network of migrations between municipalities in Austria, from 2002 to 2022. A weighted directed link from source to target indicates a migration flow from these two municipalities. Edges are annotated with migration volume (number of people), nationality, sex, and year.
This network has 2115 nodes and 2908569 edges.
Tags: Social, Economic, Travel, Weighted, Politlcal, Timestamps, Metadata
The last time I looked at the data, most of the UK's peatlands are net carbon emitters due to their dégradation.
Programmes for their restoration, largely by re-wetting, are vital to protect their vast carbon stores and to reverse the carbon flow, so they return to sequestering it.
World Peatland Day honors a crucial ecosystem in the fight against climate change
Crosslisted article(s) found for physics.atom-ph. https://arxiv.org/list/physics.atom-ph/new
[1/1]:
- Decoherence in matter-wave Talbot interference: a hydrodynamic probability-flow analysis
David Navia, \'Angel S. Sanz
TransLink is opening two new fare gates at Yaletown–Roundhouse Station to improve accessibility, customer flow, and congestion during peak times and major events. The upgrades increase the total number of fare gates from three to five and add a second accessible fare gate to help customers move through the station more quickly and efficiently.
#Vancouver
This week brought real momentum:
Nuveen invested $546M in SunZia wind a 550-mile transmission line for the US Southwest.
Morocco's World Bank-backed pumped-storage project adds 1 GW to balance renewables.
CATL launched ultra-fast batteries for delivery vans and hit 4,000 swap stations.
Sign up for the For People And Planet climate solutions digest:
Lately I've been thinking about how #Gentoo is perceived by people. So often they're stuck in the "ricer" mindset: Gentoo is being built from source, so it must be ZOMG fast. And if it isn't, then what's the point?
If I were to make four points for Gentoo (to stop myself from making more), they would be:
1. Gentoo is independent.
There is no company behind Gentoo. There is no business plan. It's made and maintained by volunteers. Driven by passion and not profit incentive. And we want to keep it that way.
2. Gentoo aims to be secure.
We are maintaining our own infrastructure to reduce the risk of being hijacked. We're securing our distribution channels and mirrors using OpenPGP. We're only using Codeberg (which we really appreciate) and GitHub as mirrors (with OpenPGP commit signatures) and contribution channels. We have a dedicated security team, who works with the developers to keep packages free of vulnerabilities and our users informed.
3. Gentoo is made by humans.
We banned LLM contributions two years ago, and never regretted it. We didn't "wait and see", we took decisive action, and if we got left behind, it's only for the better. Unfortunately, in today's LLM-ridden world we can't stop slop software from being packaged in Gentoo without sacrificing our commitment to keep packages up to date, but we try to keep the worst offenders (like copywashed chardet) at bay.
4. Gentoo supports sustainability.
This may sound ironic when so many of us build everything from source, but we're actually trying to make computing sustainable. Gentoo's source-first nature makes it inherently flexible. We try our best to support a plethora of older and less common hardware. We go against the flow and still try to provide a workable system on hardware that is not supported by Rust or V8. And on top of that, we do our best to provide binary packages for a variety of configurations.
Of course, that's not all. I want Gentoo to be reliable and stable, to be oriented towards privacy by default, to be welcome and respectful.
And all these things ultimately depend on people working on Gentoo, and contributing to Gentoo. We always need more people that share these principles and want to help us achieve them.
What do you appreciate in Gentoo?
SF-Flow: Sound field magnitude estimation via flow matching guided by sparse measurements
Ege Erdem, Shoichi Koyama, Tomohiko Nakamura, Orchisama Das, Zoran Cvetkovi\'c
https://arxiv.org/abs/2605.10398
Crosslisted article(s) found for physics.flu-dyn. https://arxiv.org/list/physics.flu-dyn/new
[1/1]:
- Wavelet Flow Matching for Multi-Scale Physics Emulation
Accarino, Nathaniel, Roesch, Gentine, Shamekh, Watson-Parris, Acquaviva
https://arxiv.org/abs/2605.16573 https://mastoxiv.page/@arXiv_csLG_bot/116600437374068881
- Hydrodynamic cascade drives tumbling in sheared colloidal rod suspensions
Lucas H. P. Cunha, Paul F. Salipante, Peter D. Olmsted, Steven D. Hudson
https://arxiv.org/abs/2605.16723 https://mastoxiv.page/@arXiv_condmatsoft_bot/116600125347107911
- Global Regular Solutions of the Compressible Navier-Stokes Equations with Nonlinear Density-Depen...
Gui-Qiang G. Chen, Jiawen Zhang, Shengguo Zhu
https://arxiv.org/abs/2605.17121 https://mastoxiv.page/@arXiv_mathAP_bot/116600309967513920
- Resolving the viscosity operator ambiguity on Riemannian manifolds via a kinematic selection prin...
Zhi-Wei Wang, Samuel L. Braunstein
https://arxiv.org/abs/2605.17502 https://mastoxiv.page/@arXiv_mathph_bot/116600140485061195
- Lateral hydrodynamics in supported membranes: The Evans-Sackmann model and its extensions
Yuto Hosaka, David Andelman, Shigeyuki Komura
https://arxiv.org/abs/2605.17917 https://mastoxiv.page/@arXiv_condmatsoft_bot/116600244691506220
- Topology of Plasma Wakefields Driven by Two Color Laguerre Gaussian Laser Pulses
Saumya Singh, Dinkar Mishra, Shivani Aggarwal, Bhupesh Kumar, Pallavi Jha
https://arxiv.org/abs/2605.18336 https://mastoxiv.page/@arXiv_physicsplasmph_bot/116600306625433164
- Physics Informed Neural Network-based Computational Method for Accelerating Time-Periodic Unstead...
Lakshya Chaplot, Harshita Agarwal, Atul Sharma
https://arxiv.org/abs/2605.18340 https://mastoxiv.page/@arXiv_physicscompph_bot/116600169978253580
toXiv_bot_toot
Ever wish your R pipelines talked back? 📣
logrittr adds a verbose pipe (%>=%) that logs what’s happening at every step—rows, columns, changes, and timing—without touching your dplyr code.
Great for debugging, teaching, or just understanding your data flow.
👉 https://guillaumepressiat.github.io/lo
Verteilung der #Speicherkapazitäten für Redox-Flow-Batterie nach Bundesland in #Deutschland mit Stand vom 21.04.2026.
11 nicht aktive und 0 Redox-Flow-Batterien ohne Inbetriebnahmedatum wurden ausgefiltert.
Der Datenbestand enthält ggf. unplausible Datensätze.
…
Early experiment (UI may change) for the new declarative input validation flow in ngscopeclient (just starting to roll it out to more filters so details will change).
But the eventual plan is to move away from a black box function that simply says "does this input accept this stream" and towards a declarative "this is what I want" flow so you can tell the user what's valid to connect.
Rarefaction-induced inflation and similarity breakdown of hypersonic bow shocks over a circular cylinder
Ehsan Roohi, Ahmad Shoja-Sani
https://arxiv.org/abs/2605.17099 https://arxiv.org/pdf/2605.17099 https://arxiv.org/html/2605.17099
arXiv:2605.17099v1 Announce Type: new
Abstract: Rarefied hypersonic bow shocks over blunt bodies inflate as the Knudsen number increases, but it remains unclear whether this inflation is a simple shift and broadening of one common shock layer or a multi-scale change of the macroscopic and internal-energy fields. We address this question using direct simulation Monte Carlo (DSMC) data for Mach-10 flow over a circular cylinder in argon and nitrogen over \(Kn_\infty \approx 0.01\)--\(1\), together with a Mach-number sweep at \(Kn_\infty=0.01\). At low rarefaction, a ray-based density-gradient ridge gives a reproducible bow-shock location and agrees with an independent schlieren-based shock-wave-detection method. As \(Kn_\infty\) increases, this ridge is replaced by a broad kinetic compression layer, so the high-Knudsen cases are analysed using profile-based standoff and thickness metrics rather than by imposing a visual shock line. The Knudsen- and Mach-number sweeps separate two mechanisms. At fixed \(M_\infty\), the continuum normal-shock density ratio provides a useful low-rarefaction reference compression scale, whereas the measured standoff growth is governed primarily by the kinetic mean free path; the effective density thickness shows an intermediate minimum before increasing in the diffuse regime. At fixed low \(Kn_\infty\), changing \(M_\infty\) mainly changes compression strength and curvature, preserving a coherent attached-layer structure. Density-registered profiles and shock-attached proper orthogonal decomposition (POD) show that, within the present maximum-density-gradient registration, density becomes nearly rank one, whereas Mach number and thermal variables retain independent modal content. Rarefied bow-shock inflation is therefore a coupled compression--relaxation process, not a single-scale rescaling of a continuum-like shock.
toXiv_bot_toot
On Website Technicals (2026-05) - Tech updates: Podbean quiet, Pint of Science, dump damping, router reboots, noon flow easing. - https://www.earth.org.uk/note-on-site-technicals-108.html
Self-focusing of helicity drives finite-time singularities in inviscid flows
Mokhtar Adda-Bedia, Sergio Rica
https://arxiv.org/abs/2605.17569 https://arxiv.org/pdf/2605.17569 https://arxiv.org/html/2605.17569
arXiv:2605.17569v1 Announce Type: new
Abstract: This paper deals with the longstanding quest of the possible existence of finite-time singularities in the equations governing the dynamics of inviscid fluids, namely, Euler equations. Here, two contributions are brought for the case of perfect fluids with finite initial energy. First, a self-similar velocity field inspired by Leray Ansatz is proposed which allows for a separation of variables that transforms the original partial differential Euler equations to a nonlinear system of ordinary differential equations. This system can be solved semi-analytically and allows a continuum set of solutions parametrised by a self-similar exponent, $\nu$. Second, we use the conservation laws of Euler equations to select the possible finite-time singular solutions and the related self-similar exponents. We find that the helicity is the driving mechanism of the blow-up through a self-focusing mechanism. The flow near the singularity separates into two phases. A first phase is within a tubular region that shrinks as a power-law $(t_c-t)^\nu$, with $t_c$ the blow-up time, where the helicity is focused. This region is separated by a sharp interface from an outer region where the vorticity, and thus helicity, is identically zero. We found that the finite-time singularity may be either point-like or line-like depending on the dynamics of the tubular region along its axis of symmetry. Incidentally for a point-like singularity we recover the Leray scaling $\nu=1/2$ paving the way to a generalisation of this approach for the Navier-Stokes equations. Finally, we conjecture that if the helicity vanishes initially, no finite-time singularity would be possible, since in this case the singularity occurs at infinite time from the initial condition.
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Kinetic-Optimal Scheduling with Moment Correction for Metric-Induced Discrete Flow Matching in Zero-Shot Text-to-Speech
Dong Yang, Yiyi Cai, Haoyu Zhang, Yuki Saito, Hiroshi Saruwatari
https://arxiv.org/abs/2605.09386 https://arxiv.org/pdf/2605.09386 https://arxiv.org/html/2605.09386
arXiv:2605.09386v1 Announce Type: new
Abstract: Metric-induced discrete flow matching (MI-DFM) exploits token-latent geometry for discrete generation, but its practical use is limited by two issues: heuristic schedulers requiring hyperparameter search, and finite-step path-tracking error from its first-order continuous-time Markov chain (CTMC) solver. We address both issues. First, we derive a kinetic-optimal scheduler for prescribed scalar-parameterized probability paths, and instantiate it for MI-DFM as a training-free numerical schedule that traverses the path at constant Fisher-Rao speed. Second, we introduce a finite-step moment correction that adjusts the jump probability while preserving the CTMC jump destination distribution. We validate the resulting method, GibbsTTS, on codec-based zero-shot text-to-speech (TTS). Under controlled comparisons with a unified architecture and large-scale dataset, GibbsTTS achieves the best objective naturalness and is preferred in subjective evaluations over masked discrete generative baselines. Additionally, in comparison with the evaluated state-of-the-art TTS systems, GibbsTTS shows strong speaker similarity, achieving the highest similarity on three of four test sets and ranking second on the fourth. Project page: https://ydqmkkx.github.io/GibbsTTSProject
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Security firm Calif says it used OpenAI's Codex to discover HTTP/2 Bomb, a remote DoS exploit affecting web servers like Nginx, Apache HTTPD, and Microsoft IIS (The Hacker News)
https://thehackernews.com/2026/06/new-http2-bomb-vulnerability-allows.html…
Verteilung der #Speicherkapazitäten für #Hochtemperaturbatterie nach Bundesland in #Deutschland mit Stand vom 30.06.2026.
0 nicht aktive und 0 Hochtemperaturbat…
A discrete Boltzmann model with state-dependent power-law relaxation time for nonequilibrium transport in compressible flows
Demei Li, Zhongyi He, Huilin Lai, Yanbiao Gan, Hailong Liu, Pengfei Lin
https://arxiv.org/abs/2605.18216 https://arxiv.org/pdf/2605.18216 https://arxiv.org/html/2605.18216
arXiv:2605.18216v1 Announce Type: new
Abstract: Thermodynamic nonequilibrium effects play a central role in momentum and energy transport in compressible flows. In conventional BGK kinetic models, the relaxation time $\tau$ is taken as a constant, which neglects the dependence of the relaxation process on local macroscopic states. To overcome this limitation, we develop a discrete Boltzmann model with a density- and temperature-dependent power-law relaxation time, termed DTRT-DBM, in which $\tau=\tau_0(\rho/\rho_0)^a(T/T_0)^b$. This formulation extends the discrete Boltzmann framework to flows with spatially varying nonequilibrium intensity. The model is validated by the Sod shock tube and by analytical solutions for viscous stress and heat flux, demonstrating accurate recovery of both macroscopic wave structures and nonequilibrium quantities across shock waves, rarefaction waves, and contact discontinuities. On this basis, phase diagrams of viscous stress and heat flux are constructed to examine how these quantities depend on the power-law exponents $a$ and $b$. The extrema of these quantities depend exponentially on the model parameters and exhibit regime-dependent behaviour. The roles of $a$ and $b$ are not symmetric: the nonequilibrium response is more sensitive to $a$ when density gradients dominate, but more sensitive to $b$ when temperature gradients dominate. Within the parameter range and flow configurations examined here, higher-order viscous stress increases the growth rate of the total viscous-stress extremum, whereas higher-order heat flux reduces the growth rate of the total heat-flux extremum. These results show that the proposed model can capture different higher-order nonequilibrium responses in compressible flows and provides a framework for the modelling and analysis of multiscale nonequilibrium processes.
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First light on the ngscopeclient ILA integration including digital vector support up to 32 bits (up to 64 will come soon and is straightforward to add, bigger will be a bit more work since there's no native int type bigger than that)
Next step will be to make a protocol decode for APB to prove out the decode flow on digital buses
Mapping the Turn: An Eulerian Binormal-Axis Diagnostic for Recirculating 3D Flows
John Marshall Cooper, Wen Wu
https://arxiv.org/abs/2605.18439 https://arxiv.org/pdf/2605.18439 https://arxiv.org/html/2605.18439
arXiv:2605.18439v1 Announce Type: new
Abstract: Three-dimensional (3D) recirculating flows are often interpreted qualitatively from selected streamline visualizations. In separated flows, such recirculating motion is central to the drag modulation, but the local orientation of recirculation remains difficult to quantify in a field-based form. This work introduces an Eulerian binormal-axis diagnostic that locally evaluates the orientation of streamline turning at each point in the velocity field, yielding a spatially resolved field of the recirculating direction. Motivated by the Frenet-Serret binormal direction of a curved streamline, the diagnostic uses the velocity vector and its convective acceleration to extract the local streamline-turning axis without requiring explicit streamline integration. The resulting direction is encoded with barycentric RGB weights to visualize streamwise, spanwise, and wall-normal turning axis contributions. The diagnostic is first applied to Hill's spherical vortex, which provides a controlled analytic example of 3D recirculating motion for interpreting the binormal-axis direction and the associated barycentric RGB encoding. It is then applied to the mean field of a pressure-gradient-induced 3D separation bubble. The resulting visualizations show that the diagnostic reveals orientation changes that are not apparent from streamline visualization. The proposed diagnostic therefore converts qualitative streamline impressions into a spatially resolved measure of local streamline-turning orientation, providing a quantitative complement to conventional 3D flow visualization.
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Anzahl der #Batteriespeicher je #Batterietechnologien in #Deutschland mit Stand vom 30.06.2026.
3782 nicht aktive und 0 Batteriespeicher ohne Inbetriebnahmedatum wurden a…
Israeli networking company DriveNets raised a $410M Series D led by Bessemer and Atreides at an $8.5B valuation, taking its total funding to ~$1B (Meir Orbach/CTech)
https://www.calcalistech.com/ctechnews/article/zzhjwk3b8
un_migrations: UN migration stock (2015)
A network of migration between countries, collected by the United Nations. A directed edge gives the flow of migration, and an edge property gives the number of migrants, for each given year and sex. Estimates are presented for 1990, 1995, 2000, 2005, 2010 and 2015 and are available for all countries and areas of the world. The estimates are based on official statistics on the foreign-born or the foreign population.
This network has 232 no…
Thinking about the integration flow for VIO-style devices in ngscopeclient (i.e. a bunch of multi-bit scalar digital input and output channels).
Does it make more sense to have one filter graph node per VIO with separate streams per input/output port? Or one node per input or output on the VIO?
Crosslisted article(s) found for physics.flu-dyn. https://arxiv.org/list/physics.flu-dyn/new
[1/1]:
- A Variational Lagrangian Framework for Log-Homotopy Particle Flow Filters
Oliv\'er T\"or\H{o}, Domonkos Csuzdi, Tam\'as B\'ecsi
https://arxiv.org/abs/2605.15379 https://mastoxiv.page/@arXiv_eessSY_bot/116594504929196718
- Control of the Fluidic Pinball using the Quadratic-Quadratic Regulator
Ali Bouland, Jeff Borggaard
https://arxiv.org/abs/2605.15438 https://mastoxiv.page/@arXiv_mathOC_bot/116594445551062130
- An efficient multi-GPU implementation for the Discontinuous Galerkin ocean model SLIM
De Le Court, Legat, Ishimwe, Scherpereel, Hanert, Lambrechts
https://arxiv.org/abs/2605.16082 https://mastoxiv.page/@arXiv_csDC_bot/116594484087540741
- Staggering domino-like blast front motion in a one-dimensional cold gas
Taras Holovatch, Yuri Kozitsky, Krzysztof Pilorz, Yurij Holovatch
https://arxiv.org/abs/2605.16125 https://mastoxiv.page/@arXiv_condmatstatmech_bot/116594543858868682
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Neue Inbetriebnahmen von #Stromspeichern je #Batterietechnologie in #Deutschland mit Stand vom 30.06.2026.
Betrachtet werden Datensätze mit Betriebsstatus „aktiv“ und vorhan…
Oracle's stock fell 19% this week, the steepest weekly drop since a 20% plunge in August 2001, amid concerns about its debt load and AI investments (Jordan Novet/CNBC)
https://www.cnbc.com/2026/06/26/oracle-stock-ends-worst-week…
Replaced article(s) found for physics.flu-dyn. https://arxiv.org/list/physics.flu-dyn/new
[1/1]:
- Mixing Fronts in Smooth Chaotic Flows
Heyman Joris, Le Borgne Tanguy, Lester Daniel
https://arxiv.org/abs/2506.15255 https://mastoxiv.page/@arXiv_physicsfludyn_bot/114709421274451465
- Real-time reinforcement learning for turbulent state-dependent control in a bluff-body wake
Junjie Zhang, Chengwei Xia, Xianyang Jiang, Isabella Fumarola, Georgios Rigas
https://arxiv.org/abs/2509.11002 https://mastoxiv.page/@arXiv_physicsfludyn_bot/115213145016358332
- Toward a unified data-driven turbulence model through multi-objective learning
Zhuoran Liu, Haochen Wang, Zhuolin Zhao, Heng Xiao
https://arxiv.org/abs/2509.17189 https://mastoxiv.page/@arXiv_physicsfludyn_bot/115252943951151336
- Localization of sources in weakly nonlinear fluid systems using linear and quadratic sensitivity ...
Qi Wang, Zejian You
https://arxiv.org/abs/2601.06304 https://mastoxiv.page/@arXiv_physicsfludyn_bot/115887064467176458
- Structures of elastoinertial turbulence in pipe flow
Manish Kumar, Michael D. Graham
https://arxiv.org/abs/2601.15637 https://mastoxiv.page/@arXiv_physicsfludyn_bot/115943599169371363
- Revisiting the Frictional Control of the Antarctic Circumpolar Current From the Energy Diagram
Takuro Matsuta, Yuki Tanaka, Atsushi Kubokawa
https://arxiv.org/abs/2602.23742 https://mastoxiv.page/@arXiv_physicsfludyn_bot/116158781888135470
- Fluid dynamics as intersection problem
Nikita Nekrasov, Paul Wiegmann
https://arxiv.org/abs/2512.25053 https://mastoxiv.page/@arXiv_hepth_bot/115819554836846738
toXiv_bot_toot
Verteilung der #Speicherkapazitäten für #Hochtemperaturbatterie nach Bundesland in #Deutschland mit Stand vom 31.05.2026.
0 nicht aktive und 0 Hochtemperaturbat…
Anzahl der #Batteriespeicher je #Batterietechnologien in #Deutschland mit Stand vom 31.05.2026.
3622 nicht aktive und 0 Batteriespeicher ohne Inbetriebnahmedatum wurden a…