Tootfinder

Burns turbulent dispersion considers the dispersed phase as a passive scalar
Corentin Reiss (CEA, IMFT)
https://arxiv.org/abs/2403.07946 https://

Burns turbulent dispersion considers the dispersed phase as a passive scalar
The Burns turbulent dispersion force is the most commonly used turbulent dispersion in the twofluid RANS bubbly-flow literature. However, its derivation is based on a series of hypothesis that are difficult to justify in industrial flows. It is shown that in low-void fraction vertical pipe flow, the Burns turbulent dispersion formulation is equivalent to considering the radial movement of the gas phase like a passive scalar that follows turbulent eddies. This is not apparent in the derivation o…

Nice to see someone remember AlgoMech, which turned out to be a series of three festivals.
Really happy with what we managed to achieve with a small arts council grant and other oddments. It was a labour of love though and so there was no point compromising on it during the pandemic.. Until then it was becoming a strange addiction working for many underpaid months of the year on a weekend of fun that as an organiser you couldn't even participate in..
We are dreaming up a

"""
But now consider another accident. A report in the British Medical Journal describes the case of a construction worker who had jumped off some scaffolding. Beneath him, to his horror, was a 15 cm nail that pierced clean through his boot when he landed. The man […] was in agony, tortured by every small movement of his foot. He was given some even more powerful sedatives, fentanyl and midazolam. But when doctors removed the boot they discovered that the nail had not penetrated his foot at all. In fact, it had passed safely between his toes. There was no bodily injury causing the excruciating pain he felt, though it was completely genuine. In his case, however, the experience was produced entirely by his own powerful prediction machinery. Those searing pains were false perceptions created by his brain's predictions (based on the visual evidence) of serious injury and the kinds of feelings that might result.
"""
(Andy Clark, The Experience Machine: How Our Minds Predict and Shape Reality)
Honestly, I think the biggest conceptual leap here is realizing that pain that is neither caused by an injury, nor neuropathic in nature, can be very real and people aren't just "making up" or "imagining" things. The wiring of their brain fires up as in any other instance of pain.

Burns turbulent dispersion considers the dispersed phase as a passive scalar
Corentin Reiss (CEA, IMFT)
https://arxiv.org/abs/2403.07946 https://

Burns turbulent dispersion considers the dispersed phase as a passive scalar
The Burns turbulent dispersion force is the most commonly used turbulent dispersion in the twofluid RANS bubbly-flow literature. However, its derivation is based on a series of hypothesis that are difficult to justify in industrial flows. It is shown that in low-void fraction vertical pipe flow, the Burns turbulent dispersion formulation is equivalent to considering the radial movement of the gas phase like a passive scalar that follows turbulent eddies. This is not apparent in the derivation o…

A timely piece by A.Nelson. @…
Timely given the plethora of ill-informed critiques of #degrowth.
She tackles a difficult task, summarising the diversity of degrowth as concept, practice and also movement.
Degrowth as a Concept and a Practice:…

Degrowth as a Concept and a Practice: Introduction
Working within the limits of Earth and people, and celebrating the potential of both, they envisage a substantive democracy, direct action by people, with power distributed on the basis of subsidiarity and exercised in ways highly respectful of Earth, the source of human being.

This https://arxiv.org/abs/2312.08488 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csRO_…

A PnP Algorithm for Two-Dimensional Pose Estimation
We propose a PnP algorithm for a camera constrained to two-dimensional motion (applicable, for instance, to many wheeled robotics platforms). Leveraging this assumption allows accuracy and performance improvements over 3D PnP algorithms due to the reduction in search space dimensionality. It also reduces the incidence of ambiguous pose estimates (as, in most cases, the spurious solutions fall outside the plane of movement). Our algorithm finds an approximate solution by solving a polynomial sys…

Along with the police violence (look at the sheer number of bullets sprayed into that dormitory!), racism, SCOTUS nonsense, and the general lack of historical coverage (people know about Kent State, but not this) - there's a #SafeStreets/#BanCars angle here too.
50 years later, things truly have not changed much.

Sally Strange (@SallyStrange@eldritch.cafe)
Attached: 2 images Since people are talking about Kent State, Ohio, 1970, it's a good time to talk about Jackson State, Mississippi, 1970. Similar situation, except there was no active protest, just a bunch of students hanging out. The mayor of Jackson declared a riot and called in the pigs. Someone threw a glass bottle, not at the pigs, but they still opened fire. Phillip Gibbs, a student at Jackson State, and James Green, a high school student who was walking home from his job, were murder…

Ukraine, Turkey agree to extend permit-free movement of cargo trucks: https://benborges.xyz/2024/02/29/ukraine-turkey-agree.html

TCAM-SSD: A Framework for Search-Based Computing in Solid-State Drives
Ryan Wong, Nikita Kim, Kevin Higgs, Sapan Agarwal, Engin Ipek, Saugata Ghose, Ben Feinberg
https://arxiv.org/abs/2403.06938

TCAM-SSD: A Framework for Search-Based Computing in Solid-State Drives
As the amount of data produced in society continues to grow at an exponential rate, modern applications are incurring significant performance and energy penalties due to high data movement between the CPU and memory/storage. While processing in main memory can alleviate these penalties, it is becoming increasingly difficult to keep large datasets entirely in main memory. This has led to a recent push for in-storage computation, where processing is performed inside the storage device. We propo…