Tootfinder

‘It’s almost carbon-negative’: how hemp became a surprise building material | Environment | The Guardian
https://www.theguardian.com/environment/2024/feb/15/its-almost-carbon-negative-how-hemp-became-a-sur…

3D Printing in Custom PLA With a TPU Core
https://poliverso.org/display/0477a01e-ae954bcb-d2a270a0cab2ab8b
3D Printing in Custom PLA With a TPU Core [Stefan] from CNC Kitchen explored an unusual approach to a multi-material print by making custom PL…

Mehr Material für Lehrkräfte: Fobizz übernimmt "To Teach"
Das Start-up Fobizz kauft das Start-up "To Teach". Zusammen will man Lehrkräften die Generierung von Unterrichtsmaterialien ermöglichen – nah am Curriculum.

A Mathematical Model for Two Solutes Transport in a Poroelastic Material and Its Applications
Roman Cherniha, Joanna Stachowska-Pietka, Jacek Waniewski
https://arxiv.org/abs/2403.00216

A Mathematical Model for Two Solutes Transport in a Poroelastic Material and Its Applications
Using well-known mathematical foundations of the elasticity theory, a mathematical model for two solutes transport in a poroelastic material (soft tissue is a typical example) is suggested. It is assumed that molecules of essentially different sizes dissolved in fluid and are transported through pores of different sizes. The stress tensor, the main force leading to the material deformation, is taken not only in the standard linear form but also with an additional nonlinear part. The model is co…

Sources: the UK shelved plans to publish rules on the training of AI models using copyrighted material, after artists and tech groups failed to agree terms (Financial Times)
https://t.co/LxM1UeiyO6

Don't let any denier or fossil fuel apologist ever tell you that renewables are "unreliable" or that batteries are "unsustainable”.
You can make batteries from water, sand, and other material to store electricity as heat. This is centuries-old technology that can power the 21st century and beyond.
No more excuses.
#EndFossilFuels

"If the university is to be fundamentally decolonized, it will need both a cultural and a material shift that is motivated less by striving to maintain competitive advantage and more by striving for greater global equality and justice, in which universities regain their purpose of providing education as a public good of benefit to both local and global constituencies."
https://doi.org/10.1093/jopedu/qhad052
Found via https://akademienl.social/@jeroenbosman/112178863506521316

Sources: the UK shelved plans to publish rules on the training of AI models using copyrighted material, after artists and tech groups failed to agree terms (Financial Times)
https://t.co/LxM1UeiyO6

"If you don’t care for Farrell or Breed or Garry Tan or any of the others making Churchillian statements about fighting off a Peskin mayoralty at any cost, then their forthcoming torrent of negative material... could solidify Peskin’s place as the last progressive standing and drive up his name ID."
https://mis…

Aaron Peskin sells himself as a man in recovery for a city in need of recovery. Will voters buy that?
Aaron Peskin makes it official: He's running for mayor. His pitch? A city in need of recovery needs a mayor in recovery.

The Florida Supreme Court just crushed abortion rights. But it also created a tool to fight back
The addition of the abortion rights #ballot #measure to the November election has dramatically changed the political calculus in Florida overnight.
Long the home of a growing sunbelt Republican base and an uncommo…

Sustainable Chemistry Achieved: Scientists Develop Organic Framework Material That Mimics Photosynthesis
https://scitechdaily.com/sustainable-chemistry-achieved-scientists-develop-organic-framework-m…

Sustainable Chemistry Achieved: Scientists Develop Organic Framework Material That Mimics Photosynthesis
Scientists at the National University of Singapore (NUS) have created a microporous covalent organic framework with dense donor–acceptor lattices and engineered linkages for the efficient and clean production of hydrogen peroxide (H2O2) through the photosynthesis process with water and air. Tradi

"Carbon-negative cement can be made with a mineral that helps catch CO2"
#Cement #Carbon #CarbonDioxide

Carbon-negative cement can be made with a mineral that helps catch CO2
A process to dissolve the mineral olivine in acid could provide a plentiful, energy-efficient material for carbon-negative cement

We produced controversy maps on the chip rush in #Vietnam.
26th floor.
A timeline representing corporate, legal and public activities. A timelapse of rural change. A bit artsy.
To be translated into a digital format.
#semiconductors

Seems big. Ammonium phosphate in literal boatload quantities. Cyanobacteria (and many other microbes) love that stuff. If anyone is still fishing and swimming in the southern Red Sea, they may not be doing so soon.
#Yemen #RedSea

Well, Chocolateria San Churro just got added to my #Enshitification shit list.
Billing customers a hidden service fee, for ordering through your own app, when dining in store; when they actively encourage customers to use it in store, and that in store material makes no mention of the fee.
Charging customers for the privilege of using your platform, when you’re benefiting fro…

Mira, la gente majísima del CCCB ha publicado mi blog sobre el taller que hice allí el mes pasado: investigando los bases materiales de la 'IA' como una controversia que nos permite entender mejor sus efectos materiales, tanto como sus afirmaciones de 'inteligencia':
Sobre el conocimiento material: https://

Sobre el conocimiento material | CCCB LAB
Una cartografía especulativa de la ecología material de la Inteligencia artificial.

Classic faculty neighborhood free library reading material. But wait, there's a twist! Can you guess what the bookmark is, and where it's from? [see next post]

Material design optimization for large-m 11B4C-based Ni/Ti supermirror neutron optics
Sjoerd Stendahl, Naureen Ghafoor, Anton Zubayer, Marcus Lorentzon, Alexei Vorobiev, Jens Birch, Fredrik Eriksson
https://arxiv.org/abs/2404.03390

Material design optimization for large-m 11B4C-based Ni/Ti supermirror neutron optics
State-of-the-art Ni/Ti supermirror neutron optics have limited reflected intensity and a restricted neutron energy range due to the interface width. Incorporating low-neutron-absorbing 11B4C enhances reflectivity and allows for thinner layers to be deposited, with which more efficient supermirrors with higher m-values can be realized. However, incorporating 11B4C reduces the optical contrast, limiting the attainable reflectivity at low scattering vectors, making this approach infeasible. This s…

This https://arxiv.org/abs/2204.08053 has been replaced.
link: https://scholar.google.com/scholar?q=a

Automorphic Forms on Unitary Groups
This manuscript provides a more detailed treatment of the material from my lecture series at the 2022 Arizona Winter School on Automorphic Forms Beyond $GL_2$. The main focus of this manuscript is automorphic forms on unitary groups, with a view toward algebraicity results. I also discuss related aspects of automorphic $L$-functions in the setting of unitary groups.

New #ethicalConsumer magazin about #outdoor clothing brands
Issue 208 May/June 2024
https://w…

OpenTRV Archive Material and Sources - Archival collection of OpenTRV history, events, links, discussion, and related material. #OpenTRV #heating #cutCarbon -

SliceIt! -- A Dual Simulator Framework for Learning Robot Food Slicing
Cristian C. Beltran-Hernandez, Nicolas Erbetti, Masashi Hamaya
https://arxiv.org/abs/2404.02569

SliceIt! -- A Dual Simulator Framework for Learning Robot Food Slicing
Cooking robots can enhance the home experience by reducing the burden of daily chores. However, these robots must perform their tasks dexterously and safely in shared human environments, especially when handling dangerous tools such as kitchen knives. This study focuses on enabling a robot to autonomously and safely learn food-cutting tasks. More specifically, our goal is to enable a collaborative robot or industrial robot arm to perform food-slicing tasks by adapting to varying material proper…

#English language #riddle (please CW answers!)
Technical note: made using Inkscape, CC BY-SA 4.0
Source material:
https://commons.wikimedia.org/wiki/File:Pan_troglodytes_(male).jpg (Hans Hillewaert, CC BY-SA 3.0)
https://commons.wikimedia.org/wiki/File:Mountain_gorilla_(Gorilla_beringei_beringei)_yawn.jpg (Charles J. Sharp, CC BY-SA 4.0)
https://commons.wikimedia.org/wiki/File:Wojciech_Polak_(2014)_02.jpg (J. Andrzejewski, CC BY-SA 3.0)

This https://arxiv.org/abs/2311.09896 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qu…

Thermalization rate of polaritons in strongly-coupled molecular systems
Polariton thermalization is a key process in achieving light-matter Bose--Einstein condensation, spanning from solid-state semiconductor microcavities at cryogenic temperatures to surface plasmon nanocavities with molecules at room temperature. Originated from the matter component of polariton states, the microscopic mechanisms of thermalization are closely tied to specific material properties. In this work, we investigate polariton thermalization in strongly-coupled molecular systems. We devel…

The BSc-level version of my transformers lecture is finished: https://mlvu.github.io/transformers/
Now to record the videos.
This was a nice opportunity to bring the material up to date a bit and show the whole history from self-attention to ChatGPT in one story.

trec: TREC collection (2010)
A bipartite network of documents and the words they contain, extracted from NIST's Text Retrieval Conference (TREC) disks 4 and 5, from 2010. These archives contain material drawn from the Financial Times Ltd., the Congressional Record of the 103rd Congress, the Federal Register, the Foreign Broadcast Information Service, and the Los Angeles Times newspaper.
This network has 1729302 nodes and 83629405 edges.
Tags: Informational, Language, Un…

Full orbital solutions in pre-main sequence high-order multiple systems: GG Tau Ab and UX Tau B
Gaspard Duch\^ene, Jean-Baptiste LeBouquin, Fran\c{c}ois M\'enard, Nicol\'as Cuello, Claudia Toci, Maud Langlois
https://arxiv.org/abs/2404.02469

Full orbital solutions in pre-main sequence high-order multiple systems: GG Tau Ab and UX Tau B
High-order multiple (triple and beyond) systems are relatively common. Their interaction with circumstellar and circumbinary material can have a large impact on the formation and evolution of planetary systems and depends on their orbital properties. GG\,Tau and UX\,Tau are two pre-main sequence high-order multiple systems in which the tightest pair has a projected separation of $\approx5$--20\,au. Characterizing precisely their orbits is crucial to establish their long-term stability, to predi…

First time plastic welding since shop class at RPI in like 2011.
Definitely not my prettiest work but it looks like it'll hold, and should be way better than the epoxy I used before (this is polypropylene so annoyingly low surface energy for adhesives).

Phase retrieval beyond the homogeneous object assumption for X-ray in-line holographic imaging
Jens Lucht, Leon M. Lohse, Thorsten Hohage, Tim Salditt
https://arxiv.org/abs/2403.00461

Phase retrieval beyond the homogeneous object assumption for X-ray in-line holographic imaging
X-ray near field holography has proven to be a powerful 2D and 3D imaging technique with applications ranging from biomedical research to material sciences. To reconstruct meaningful and quantitative images from the measurement intensities, however, it relies on computational phase retrieval which in many cases assumes the phase-shift and attenuation coefficient of the sample to be proportional. Here, we demonstrate an efficient phase retrieval algorithm that does not rely on this homogeneous-o…

This Bandcamp Friday I wanted to share something different (a bit friendlier than my usual material); a half-orchestral album released under the pseudonym Firehand.
Thank you so much!
https://firehandmusic.bandcamp.com/album/sky-gardens

Mira, la gent maca del CCCB ha publicat el meu article sobre el taller que vaig fer allí el mes passat, investigant els bases materials de la 'IA' com a una controvèrsia que ens permet entendre millor els seus efectes materials, tant com les seves afirmacions d'intel·ligència:
Sobre el coneixement material https://

Sobre el coneixement material | CCCB LAB
Una cartografia especulativa de l’ecologia material de la Intel·ligència artificial.

This https://arxiv.org/abs/2306.16584 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_grqc_…

Scale invariant elastic stars in General Relativity
We present a model of relativistic elastic stars featuring scale invariance. This implies a linear mass-radius relation and the absence of a maximum mass. The most compact spherically symmetric configuration that is radially stable and satisfies all energy and causality conditions has a slightly smaller radius than the Schwarzschild light ring radius. To the best of our knowledge, this is the first material compact object with such remarkable properties in General Relativity, which makes it a u…

💪 Two-dimensional nanomaterial sets expansion record
#material

Two-dimensional nanomaterial sets expansion record
It is a common hack to stretch a balloon out to make it easier to inflate. When the balloon stretches, the width crosswise shrinks to the size of a string. Noah Stocek, a Ph.D. student collaborating with Western physicist Giovanni Fanchini, has developed a new nanomaterial that demonstrates the opposite of this phenomenon.

Pseudoscalar Mesons and Emergent Mass
K. Raya, A. Bashir, D. Binosi, C. D. Roberts, J. Rodr\'iguez-Quintero
https://arxiv.org/abs/2403.00629 https://…

Pseudoscalar Mesons and Emergent Mass
Despite its role in the continuing evolution of the Universe, only a small fraction of the mass of visible material can be attributed to the Higgs boson alone. The overwhelmingly dominant share may/should arise from the strong interactions that act in the heart of nuclear matter; namely, those described by quantum chromodynamics. This contribution describes how studying and explaining the attributes of pseudoscalar mesons can open an insightful window onto understanding the origin of mass in th…

CSI Cosby Show
(You know there's got to be actual material for this show)
#MashUpTVDramasAndSitcomsAsReboots
#HashTagGames

Dual-Frequency Radar Wave-Inversion for Sub-Surface Material Characterization
Ishfaq Aziz, Elahe Soltanaghai, Adam Watts, Mohamad Alipour
https://arxiv.org/abs/2403.19853

Dual-Frequency Radar Wave-Inversion for Sub-Surface Material Characterization
Moisture estimation of sub-surface soil and the overlaying biomass layer is pivotal in precision agriculture and wildfire risk assessment. However, the characterization of layered material is nontrivial due to the radar penetration-resolution tradeoff. Here, a waveform inversion-based method was proposed for predicting the dielectric permittivity (as a moisture proxy) of the bottom soil layer and the top biomass layer from radar signals. Specifically, the use of a combination of a higher and a …

This https://arxiv.org/abs/2308.05603 has been replaced.
initial toot: https://mastoxiv.page/@…

Loss of memory of an elastic line on its way to limit cycles
Under an oscillating mechanical drive, an amorphous material progressively forgets its initial configuration and might eventually converge to a limit cycle. Beyond quasistatic drivings, how structurally disordered systems lose or record such memory remains theoretically challenging. Here we investigate these issues in a minimal model system -- with quenched disorder and memory encoded in a spatial pattern -- where the oscillating protocol can formally be replaced by finite positive-velocity dri…

This https://arxiv.org/abs/1809.02467 has been replaced.
link: https://scholar.google.com/scholar?q=a

Design and testing of 3D-printed micro-architectured polymer materials exhibiting a negative Poisson's ratio
This work proposes the complete design cycle for several auxetic materials where the cycle consists of three steps (i) the design of the micro-architecture, (ii) the manufacturing of the material and (iii) the testing of the material. We use topology optimization via a level-set method and asymptotic homogenization to obtain periodic micro-architectured materials with a prescribed effective elasticity tensor and Poisson's ratio. The space of admissible micro-architectural shapes that carries or…

"What can a #museum do to guarantee that the data, information & stories added by the public would have the historical source value throughout the time in the future?
While recording and storing information, we must also record & store the background data of the information to each description: who enters it; time & place & situation; and all the additional sources."

Description creation for museum objects in a digital environment. Co-creation - University Heritage
Museums are skilful in using digital opportunities to offer information. Technology gives also an opportunity to involve people in creating the content and descriptions of museum objects. There are several projects in Estonia inviting people to send material (especially digital images) to a museum. Modern data gathering methods make it fast and easy supporting the […]

Direct visualization of local magnetic domain dynamics in a 2D Van der Walls material/ferromagnet interface
Joseph Vimal Vas, Rohit Medwal, Sourabh Manna, Mayank Mishra, Aaron Muller, John Rex Mohan, Yasuhiro Fukuma, Martial Duchamp, Rajdeep Singh Rawat
https://arxiv.org/abs/2404.03177 <…

Direct visualization of local magnetic domain dynamics in a 2D Van der Walls material/ferromagnet interface
Exploring new strategies for controlling the magnetic domain propagation is the key to realize ultrafast, high-density domain wall-based memory and logic devices for next generation computing. These strategies include strain modulation in multiferroic devices, geometric confinement and area-selective pinning of domain wall. 2D Van der Waals materials introduce localized modifications to the interfacial magnetic order, enabling control over the propagation of magnetic domains. Here, using Lorent…

This https://arxiv.org/abs/2310.09559 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Confinement-induced drift in Marangoni-driven transport of surfactant: a Lagrangian perspective
Successive drops of coloured ink mixed with surfactant are deposited onto a thin film of water to create marbling patterns in the Japanese art technique of Suminagashi. To understand the physics behind this and other applications where surfactant transports adsorbed passive matter at gas-liquid interfaces, we investigate the Lagrangian trajectories of material particles on the surface of a thin film of a confined viscous liquid under Marangoni-driven spreading by an insoluble surfactant. We stu…

Computational Shape Derivatives in Heat Conduction: An Optimization Approach for Enhanced Thermal Performance
M. Azaiez, A. Doubova, S. Ervedoza, F. Jelassi, M. Mint Brahim
https://arxiv.org/abs/2403.20181

Computational Shape Derivatives in Heat Conduction: An Optimization Approach for Enhanced Thermal Performance
We analyze an optimization problem of the conductivity in a composite material arising in a heat conduction energy storage problem. The model is described by the heat equation that specifies the heat exchange between two types of materials with different conductive properties with Dirichlet-Neumann boundary conditions on the external part of the domain, and on the interface characterized by the resisting coefficient between the highly conductive material and the less conductive material. The ma…

What happens when you make a deal with the devil to get research funding.
”Blood Works for Graphene Production“
https://arxiv.org/abs/2404.18045

This https://arxiv.org/abs/2403.17812 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Estimating the detection of antineutrinos in the future Brazilian neutron source
In line with the tradition of employing nuclear reactors for neutrino physics research, we present potential experiments that could be undertaken using the new Brazilian neutron source, the Brazilian Multipurpose Reactor (RMB). This upcoming facility has clearly defined objectives, including the production of radiopharmaceuticals for the healthcare system, material irradiation testing, and research using neutron beams to investigate the micro and mesostructures of various materials. However, we…

This https://arxiv.org/abs/2401.07047 has been replaced.
initial toot: https://mastoxiv.page/@a…

Tuning dissipation dilution in 2D material resonators by MEMS-induced tension
Resonators based on two-dimensional (2D) materials have exceptional properties for application as nanomechanical sensors, which allows them to operate at high frequencies with high sensitivity. However, their performance as nanomechanical sensors is currently limited by their low quality ($Q$)-factor. Here, we make use of micro-electromechanical systems (MEMS) to apply pure in-plane mechanical strain, enhancing both their resonance frequency and Q-factor. In contrast to earlier work, the 2D mat…

This https://arxiv.org/abs/2204.08053 has been replaced.
link: https://scholar.google.com/scholar?q=a

Automorphic Forms on Unitary Groups
This manuscript provides a more detailed treatment of the material from my lecture series at the 2022 Arizona Winter School on Automorphic Forms Beyond $GL_2$. The main focus of this manuscript is automorphic forms on unitary groups, with a view toward algebraicity results. I also discuss related aspects of automorphic $L$-functions in the setting of unitary groups.

Yesterday's #JetpackReleaseNotes had so much fun stuff, I'm already on the way to implement them into Claw
https://github.com/msfjarvis/compose-lobsters/…

GitHub - msfjarvis/compose-lobsters: Claw for Android: Unofficial read-only client for https://lobste.rs, built using Jetpack Compose.
Claw for Android: Unofficial read-only client for https://lobste.rs, built using Jetpack Compose. - msfjarvis/compose-lobsters

Broadening of the Divertor Heat Flux Profile in High Confinement Tokamak Fusion Plasmas with Edge Pedestals Limited by Turbulence in DIII-D
D. R. Ernst, A. Bortolon, C. S. Chang, S. Ku, F. Scotti, H. Q. Wang, Z. Yan, Jie Chen, C. Chrystal, F. Glass, S. Haskey, R. Hood, F. Khabanov, F. Laggner, C. Lasnier, G. R. McKee, T. L. Rhodes, D. Truong, J. Watkins

Broadening of the Divertor Heat Flux Profile in High Confinement Tokamak Fusion Plasmas with Edge Pedestals Limited by Turbulence in DIII-D
Multi-machine empirical scaling predicts an extremely narrow heat exhaust layer in future high magnetic field tokamaks, leading to disastrous material erosion. In the experiments presented, the width of this exhaust layer is nearly doubled by using actuators to increase turbulent transport in the plasma edge. This is achieved in low collisionality, high confinement edge pedestals with their gradients limited by turbulent transport instead of large-scale, coherent instabilities. The exhaust heat…

Pretty good rabbit hole material about P Diddler.
https://youtu.be/01MdaMYSfgM?si=3pnlLATVttlfvmWF

Fractional material derivative: pointwise representation and a finite volume numerical scheme
{\L}ukasz P{\l}ociniczak, Marek A. Teuerle
https://arxiv.org/abs/2402.19015

Fractional material derivative: pointwise representation and a finite volume numerical scheme
The fractional material derivative appears as the fractional operator that governs the dynamics of the scaling limits of Lévy walks - a stochastic process that originates from the famous continuous-time random walks. It is usually defined as the Fourier-Laplace multiplier, therefore, it can be thought of as a pseudo-differential operator. In this paper, we show that there exists a local representation in time and space, pointwise, of the fractional material derivative. This allows us to define…

Federal prosecutors charge Japanese Yakuza leader in nuclear material trafficking conspiracy (Sarah Fortinsky/The Hill)
https://thehill.com/policy/international/4481481-federal-prosecutors-charge-japanese-yakuza-leader-in-nuclear-material-trafficking-conspiracy/
http://www.memeorandum.com/240221/p79#a240221p79

On Other Useful Sites - Archived and additional links, videos, and older material from yesteryear. - https://www.earth.org.uk/note-on-other-sites.html

On Other Useful Sites
Archived and additional links, videos, and older material from yesteryear.

This https://arxiv.org/abs/2309.05713 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

GA-NIFS: Early-stage feedback in a heavily obscured AGN at $z=4.76$
Dust-obscured galaxies are thought to represent an early evolutionary phase of massive galaxies in which the active galactic nucleus (AGN) is still deeply buried in significant amounts of dusty material and its emission is strongly suppressed. The unprecedented sensitivity of the James Webb Space Telescope enables us for the first time to detect the rest-frame optical emission of heavily obscured AGN and unveil the properties of the hidden accreting super-massive black holes (BHs). In this work…

This https://arxiv.org/abs/2312.03128 has been replaced.
initial toot: https://mastoxiv.page/@ar…

AlGaN/AlN heterostructures: an emerging platform for nonlinear integrated photonics
In the rapidly evolving area of integrated photonics, there is a growing need for materials that satisfy the particular requirements of increasingly complex and specialized devices and applications. Present photonic material platforms have made significant progress over the past years; however, each platform still faces specific material and performance challenges. We introduce a novel material for integrated photonics: Aluminum Gallium Nitride (AlGaN) on Aluminum Nitride (AlN) as a platform fo…

If, like me, you were utterly befuddled by Politico's and E&E's articles, both of which were utterly devoid of any useful information [were they written by an AI?], about the cancellation of three offshore wind projects in NY, here's a very helpful article in Maritime Executive with all the actual information anyone needs to know.

New York Ends Third Wind Round Without Awards Due to Material Modifications
 In the latest setback to U.S. plans to accelerate renewable energy development, New York State regulators today reported they closed the third round...

From Seaweed to Security: The Emergence of Alginate in Compromising IoT Fingerprint Sensors
Pouria Rad, Gokila Dorai, Mohsen Jozani
https://arxiv.org/abs/2404.02150

From Seaweed to Security: The Emergence of Alginate in Compromising IoT Fingerprint Sensors
The increasing integration of capacitive fingerprint recognition sensors in IoT devices presents new challenges in digital forensics, particularly in the context of advanced fingerprint spoofing. Previous research has highlighted the effectiveness of materials such as latex and silicone in deceiving biometric systems. In this study, we introduce Alginate, a biopolymer derived from brown seaweed, as a novel material with the potential for spoofing IoT-specific capacitive fingerprint sensors. Our…

In a few thousand years the only material evidence for our existence will be layers of Allen keys buried in micro plastics.

Rhythm section rehearsal yesterday with my bandmates... 5hrs going over two separate sets of material we'll be performing in Mexico over the next two weeks. Clutch, as always, was #ForScore...
Wondered how the pages on my bass player's iPad were switching in time with the music...
HE WAS USING FACIAL EXPRESSIONS TO TURN THE PAGES
@…

Leveraging Active Subspaces to Capture Epistemic Model Uncertainty in Deep Generative Models for Molecular Design
A N M Nafiz Abeer, Sanket Jantre, Nathan M Urban, Byung-Jun Yoon
https://arxiv.org/abs/2405.00202

Leveraging Active Subspaces to Capture Epistemic Model Uncertainty in Deep Generative Models for Molecular Design
Deep generative models have been accelerating the inverse design process in material and drug design. Unlike their counterpart property predictors in typical molecular design frameworks, generative molecular design models have seen fewer efforts on uncertainty quantification (UQ) due to computational challenges in Bayesian inference posed by their large number of parameters. In this work, we focus on the junction-tree variational autoencoder (JT-VAE), a popular model for generative molecular de…

UMAT4COMSOL: An Abaqus user material (UMAT) subroutine wrapper for COMSOL
S. Lucarini, E. Mart\'inez-Pa\~neda
https://arxiv.org/abs/2402.13925 https://…

UMAT4COMSOL: An Abaqus user material (UMAT) subroutine wrapper for COMSOL
We present a wrapper that allows Abaqus user material subroutines (UMATs) to be used as an External Material library in the software COMSOL Multiphysics. The wrapper, written in C language, transforms COMSOL's external material subroutine inputs and outputs into Fortran-coded Abaqus UMAT inputs and outputs, by means of a consistent variable transformation. This significantly facilitates conducting coupled, multi-physics studies employing the advanced material models that the solid mechanics com…

ISW: Russia likely to intensify offensives amid closing window of Ukrainian material constraints: https://benborges.xyz/2024/04/21/isw-russia-likely.html

This Bandcamp Friday I wanted to share something different (a bit friendlier than my usual material); a half-orchestral album released under the pseudonym Firehand.
Thank you so much!
https://firehandmusic.bandcamp.com/album/sky-gardens

This https://arxiv.org/abs/2306.16584 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_grqc_…

Scale invariant elastic stars in General Relativity
We present a model of relativistic elastic stars featuring scale invariance. This implies a linear mass-radius relation and the absence of a maximum mass. The most compact spherically symmetric configuration that is radially stable and satisfies all energy and causality conditions has a slightly smaller radius than the Schwarzschild light ring radius. To the best of our knowledge, this is the first material compact object with such remarkable properties in General Relativity, which makes it a u…

The influence of substantial intragranular orientation gradients on the micromechanical response of heavily-worked material
Karthik Shankar, Meddelin Setiawan, Katherine S. Shanks, Matthew E. Krug, Matthew P. Kasemer, Darren C. Pagan
https://arxiv.org/abs/2404.03579

The influence of substantial intragranular orientation gradients on the micromechanical response of heavily-worked material
In this study, we examine the role of relatively large amounts of intragranular lattice misorientation - present after many thermomechanical processes - through three-dimensional (3D) micromechanical simulations of forged Al-7085 with a modified T7452 temper. We utilize near-field high-energy X-ray diffraction microscopy (HEDM) to measure 3D spatial orientation fields, and employ a novel reconstruction method that utilizes grain orientation envelopes measured using far-field HEDM to enable reco…

[Hätte ich mir letztes Jahr auch denken können, dass dieses Kunstwerk am Flughafen Toronto Pearsons von Richard Serra ist: Tilted Spheres. https://www.torontopearson.com/en/while-you-are-here/art-and-culture/current-art/tilted-spheres

Tilted Spheres
In the early 1970s, Richard Serra began working with steel, the material that would define his influential artistic practice through the monumentality of his sculptures.

Isto pode ser verdade ou pode ser propaganda, se bem que de uma forma geral estes tipos tendam a falar verdade, pelo menos no que toca ao material (i.e., aparecem provas do que dizem ter destruído, mais cedo ou mais tarde).
Se for verdade, fevereiro estš a ser delicioso para a força aérea russa.
Positivamente delicioso.

Just got a new (US) passport and... WOW. As a security professional I'm impressed.
Spent a while going over it with a microscope and I keep finding more and smaller anti-counterfeiting features.
There's the usual watermarked paper with embedded fibers. But also multi-material multi-layer 3D features, microlenses, laser engraving, microprinting, holograms, solid plastic overlays with microprinting above and below, color changing ink, and more. The passport number and beare…

Fake it to make it: Using synthetic data to remedy the data shortage in joint multimodal speech-and-gesture synthesis
Shivam Mehta, Anna Deichler, Jim O'Regan, Birger Mo\"ell, Jonas Beskow, Gustav Eje Henter, Simon Alexanderson
https://arxiv.org/abs/2404.19622 https://arxiv.org/pdf/2404.19622
arXiv:2404.19622v1 Announce Type: new
Abstract: Although humans engaged in face-to-face conversation simultaneously communicate both verbally and non-verbally, methods for joint and unified synthesis of speech audio and co-speech 3D gesture motion from text are a new and emerging field. These technologies hold great promise for more human-like, efficient, expressive, and robust synthetic communication, but are currently held back by the lack of suitably large datasets, as existing methods are trained on parallel data from all constituent modalities. Inspired by student-teacher methods, we propose a straightforward solution to the data shortage, by simply synthesising additional training material. Specifically, we use unimodal synthesis models trained on large datasets to create multimodal (but synthetic) parallel training data, and then pre-train a joint synthesis model on that material. In addition, we propose a new synthesis architecture that adds better and more controllable prosody modelling to the state-of-the-art method in the field. Our results confirm that pre-training on large amounts of synthetic data improves the quality of both the speech and the motion synthesised by the multimodal model, with the proposed architecture yielding further benefits when pre-trained on the synthetic data. See https://shivammehta25.github.io/MAGI/ for example output.

A researcher finds that X is testing a feature that lets users create or join communities focused on "adult content" or other "not safe for work" material (Kurt Wagner/Bloomberg)
https://www.bloomberg.com/news/articles/20

Elon Musk’s X Is Testing ‘Adult Content’ Groups for Users
X, the social network formerly known as Twitter, is testing a feature that lets users create or join communities focused on “adult content” or other “not safe for work” material.

On Other Useful Sites - Archived and additional links, videos, and older material from yesteryear. - https://www.earth.org.uk/note-on-other-sites.html

On Other Useful Sites
Archived and additional links, videos, and older material from yesteryear.

"Back to Basics: Forwarding References" by Mateusz Pusz at #cppcon 2023 is superb. Hour-long but appropriately so for the material. #video #grateful
Does require "intermediate level"

🐛 Scientists discover how caterpillars can stop their bleeding in seconds
#bugs

Scientists discover how caterpillars can stop their bleeding in seconds
Blood is a remarkable material: it must remain fluid inside blood vessels, yet clot as quickly as possible outside them, to stop bleeding. The chemical cascade that makes this possible is well understood for vertebrate blood. But hemolymph, the equivalent of blood in insects, has a very different composition, being notably lacking in red blood cells, hemoglobin, and platelets, and having amoeba-like cells called hemocytes instead of white blood cells for immune defense.

This https://arxiv.org/abs/2403.17812 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Estimating the detection of antineutrinos in the future Brazilian neutron source
In line with the tradition of employing nuclear reactors for neutrino physics research, we present potential experiments that could be undertaken using the new Brazilian neutron source, the Brazilian Multipurpose Reactor (RMB). This upcoming facility has clearly defined objectives, including the production of radiopharmaceuticals for the healthcare system, material irradiation testing, and research using neutron beams to investigate the micro and mesostructures of various materials. However, we…

Yesterday's #JetpackReleaseNotes had so much fun stuff, I'm already on the way to implement them into Claw
https://github.com/msfjarvis/compose-lobsters/…

GitHub - msfjarvis/compose-lobsters: Claw for Android: Unofficial read-only client for https://lobste.rs, built using Jetpack Compose.
Claw for Android: Unofficial read-only client for https://lobste.rs, built using Jetpack Compose. - msfjarvis/compose-lobsters

Enhancing Phase Stability and Coercivity of MnAl $\tau$-L$1_0$ with Fe and Ni Substitutions: \textit{ab initio} and Micromagnetic Modeling
Churna Bhandari, Gavin N. Nope, Durga Paudyal
https://arxiv.org/abs/2404.03051

Enhancing Phase Stability and Coercivity of MnAl $τ$-L$1_0$ with Fe and Ni Substitutions: \textit{ab initio} and Micromagnetic Modeling
The binary manganese aluminium (MnAl) alloy with L$1_0$ crystal structure, which exhibits exceptional magnetic properties, is a promising rare earth element free permanent magnet material. However, according to experimental reports, synthesizing it in a stable bulk form is extremely challenging. Here, we propose and theoretically verify an alternative method of stabilizing the material by partially substituting Mn and Al sites by Fe and Ni and identify its stability, electronic structure, and m…

Just got a new (US) passport and... WOW. As a security professional I'm impressed.
Spent a while going over it with a microscope and I keep finding more and smaller anti-counterfeiting features.
There's the usual watermarked paper with embedded fibers. But also multi-material multi-layer 3D features, microlenses, laser engraving, microprinting, holograms, solid plastic overlays with microprinting above and below, color changing ink, and more. The passport number and beare…

Dirac fermions collimation in heterostructures based on tilted Dirac cone materials
Ej Bou\^azzaoui Choubabi, Bouchaib Lemaalem, Mohamed Raggui, Abdelhadi Belouad, Rachid Hou\c{c}a, Abdellatif Kamal, Mohamed Monkade
https://arxiv.org/abs/2404.02485

Dirac fermions collimation in heterostructures based on tilted Dirac cone materials
This paper aims to theoretically analyze the behavior of Dirac fermions in tilted Dirac cone material, particularly those that have diffused a barrier potential.Our results show that the degree of tilt in the y-direction can lead to different collimations of the Dirac fermion beams relative to the Fermi and confinement surfaces. To study the transmission probability, we exploited our results numerically, taking into account the various configurations of the system and the different external and…

This https://arxiv.org/abs/2212.04466 has been replaced.
link: https://scholar.google.com/scholar?q=a

On inclusion of time-varying source in the acoustic wave equation
Acoustic wave equation is a partial differential equation (PDE) which describes propagation of acoustic waves through a material. In general, the solution to this PDE is nonunique. Therefore, it is necessary to impose initial conditions in the form of Cauchy conditions for obtaining a unique solution. Theoretically, solving the wave equation is equivalent to representing the wavefield in terms of a radiation source which possesses finite energy over space and time.The radiation source is repres…

This https://arxiv.org/abs/2309.05713 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

GA-NIFS: Early-stage feedback in a heavily obscured AGN at $z=4.76$
Dust-obscured galaxies are thought to represent an early evolutionary phase of massive galaxies in which the active galactic nucleus (AGN) is still deeply buried in significant amounts of dusty material and its emission is strongly suppressed. The unprecedented sensitivity of the James Webb Space Telescope enables us for the first time to detect the rest-frame optical emission of heavily obscured AGN and unveil the properties of the hidden accreting super-massive black holes (BHs). In this work…

Rhythm section rehearsal yesterday with my bandmates... 5hrs going over two separate sets of material we'll be performing in Mexico over the next two weeks. Clutch, as always, was #ForScore...
Wondered how the pages on my bass player's iPad were switching in time with the music...
HE WAS USING FACIAL EXPRESSIONS TO TURN THE PAGES
@…

Leveraging Active Subspaces to Capture Epistemic Model Uncertainty in Deep Generative Models for Molecular Design
A N M Nafiz Abeer, Sanket Jantre, Nathan M Urban, Byung-Jun Yoon
https://arxiv.org/abs/2405.00202

Leveraging Active Subspaces to Capture Epistemic Model Uncertainty in Deep Generative Models for Molecular Design
Deep generative models have been accelerating the inverse design process in material and drug design. Unlike their counterpart property predictors in typical molecular design frameworks, generative molecular design models have seen fewer efforts on uncertainty quantification (UQ) due to computational challenges in Bayesian inference posed by their large number of parameters. In this work, we focus on the junction-tree variational autoencoder (JT-VAE), a popular model for generative molecular de…

Russia detains Novaya Gazeta EIC Sergei Sokolov for allegedly discrediting Russian army; he became EIC in 2023 after Dmitry Muratov was named a "foreign agent" (Associated Press)
https://apnews.com/article/russia-media…

Editor of top independent Russian newspaper fined for allegedly discrediting military
The editor-in-chief of the renowned Russian independent newspaper Novaya Gazeta was detained and later fined 30,000 rubles ($329) after being accused of discrediting Russia’s armed forces. The newspaper says Sergei Sokolov was detained Thursday by officers from Russia’s Center for Combating Extremism. It says the charges — which are “administrative” and are usually punishable by a fine or a short prison sentence -– are related to material posted in the outlet’s Telegram channel. S…

This https://arxiv.org/abs/2307.14914 has been replaced.
initial toot: https://mastoxiv.page/@…

Reduced stress propagation leads to increased mechanical failure resistance in auxetic materials
Materials with negative Poisson ratio have the counter-intuitive property of expanding laterally when they are stretched longitudinally. They are accordingly termed auxetic, from the Greek auxesis meaning to increase. Experimental studies have demonstrated auxetic materials to have superior material properties, compared with conventional ones. These include synclastic curvature, increased acoustic absorption, increased resilience to material fatigue, and increased resistance to mechanical failu…

[Hätte ich mir letztes Jahr auch denken können, dass dieses Kunstwerk am Flughafen Toronto Pearsons von Richard Serra ist: Tilted Spheres. https://www.torontopearson.com/en/while-you-are-here/art-and-culture/current-art/tilted-spheres

Tilted Spheres
In the early 1970s, Richard Serra began working with steel, the material that would define his influential artistic practice through the monumentality of his sculptures.

The Food and Drug Administration on Tuesday announced that genetic fragments from the highly-pathogenic avian influenza virus H5N1 have been detected in the pasteurized, commercial milk supply.
However, the testing completed so far
—using quantitative polymerase chain reaction (qPCR)
—only detects the presence of viral genetic material
and cannot tell whether the genetic material is from live and infectious viral particles or merely remnants of dead ones killed by the p…

Fragments of bird flu virus genome found in pasteurized milk, FDA says
The test cannot tell if the virus is live. The FDA still assess milk supply as safe.

Wideband Penetration Loss through Building Materials and Partitions at 6.75 GHz in FR1(C) and 16.95 GHz in the FR3 Upper Mid-band spectrum
Dipankar Shakya, Mingjun Ying, Theodore S. Rappaport, Hitesh Poddar, Peijie Ma, Yanbo Wang, Idris Al-Wazani
https://arxiv.org/abs/2405.01362

Wideband Penetration Loss through Building Materials and Partitions at 6.75 GHz in FR1(C) and 16.95 GHz in the FR3 Upper Mid-band spectrum
The 4--8 GHz FR1(C) and 7--24 GHz upper mid-band FR3 spectrum are promising new 6G spectrum allocations being considered by the International Telecommunications Union (ITU) and major governments around the world. There is an urgent need to understand the propagation behavior and radio coverage, outage, and material penetration for the global mobile wireless industry in both indoor and outdoor environments in these emerging frequency bands. This work presents measurements and models that describ…

This https://arxiv.org/abs/2402.19480 has been replaced.
initial toot: https://mastoxiv.page/@a…

Single Electron Quantum Dot in Two-Dimensional Transition Metal Dichalcogenides
Spin-valley properties in two-dimensional (2D) semiconducting transition metal dichalcogenides (TMDC) has attracted significant interest due to the possible applications in quantum computing. Spin-valley properties can be exploited in TMDC quantum dot (QD) with well-resolved energy levels. This requires smaller QDs, especially in material systems with heavy carrier effective mass e.g. TMDCs and silicon. Device architectures employed for TMDC QDs so far have difficulty achieving smaller QDs. The…

This https://arxiv.org/abs/2307.14914 has been replaced.
initial toot: https://mastoxiv.page/@…

Reduced stress propagation leads to increased mechanical failure resistance in auxetic materials
Materials with negative Poisson ratio have the counter-intuitive property of expanding laterally when they are stretched longitudinally. They are accordingly termed auxetic, from the Greek auxesis meaning to increase. Experimental studies have demonstrated auxetic materials to have superior material properties, compared with conventional ones. These include synclastic curvature, increased acoustic absorption, increased resilience to material fatigue, and increased resistance to mechanical failu…

Wideband Penetration Loss through Building Materials and Partitions at 6.75 GHz in FR1(C) and 16.95 GHz in the FR3 Upper Mid-band spectrum
Dipankar Shakya, Mingjun Ying, Theodore S. Rappaport, Hitesh Poddar, Peijie Ma, Yanbo Wang, Idris Al-Wazani
https://arxiv.org/abs/2405.01362

Wideband Penetration Loss through Building Materials and Partitions at 6.75 GHz in FR1(C) and 16.95 GHz in the FR3 Upper Mid-band spectrum
The 4--8 GHz FR1(C) and 7--24 GHz upper mid-band FR3 spectrum are promising new 6G spectrum allocations being considered by the International Telecommunications Union (ITU) and major governments around the world. There is an urgent need to understand the propagation behavior and radio coverage, outage, and material penetration for the global mobile wireless industry in both indoor and outdoor environments in these emerging frequency bands. This work presents measurements and models that describ…

On Other Useful Sites - Archived and additional links, videos, and older material from yesteryear. - https://m.earth.org.uk/note-on-other-sites.html

On Other Useful Sites
Archived and additional links, videos, and older material from yesteryear.

Electronic ferroelectricity in monolayer graphene for multifunctional neuromorphic electronics
Le Zhang, Jing Ding, Hanxiao Xiang, Naitian Liu, Wenqiang Zhou, Linfeng Wu, Na Xin, Kenji Watanabe, Takashi Taniguchi, Shuigang Xu
https://arxiv.org/abs/2404.03410

Electronic ferroelectricity in monolayer graphene for multifunctional neuromorphic electronics
Ferroelectricity is intriguing for its spontaneous electric polarization, which is switchable by an external electric field. Expanding ferroelectric materials to two-dimensional limit will provide versatile applications for the development of next-generation nonvolatile devices. Conventional ferroelectricity requires the materials consisting of at least two constituent elements associated with polar crystalline structures. Monolayer graphene as an elementary two-dimensional material unlikely ex…

Evolution of Berry Phase and Half-Metallicity in Cr$_2$Te$_3$ in Response to Strain, Filling, Thickness, and Surface Termination
Sohee Kwon, Yuhang Liu, Hang Chi, Gen Yin, Mahesh R. Neupane, Roger K. Lake
https://arxiv.org/abs/2404.02315

Evolution of Berry Phase and Half-Metallicity in Cr$_2$Te$_3$ in Response to Strain, Filling, Thickness, and Surface Termination
Cr$_2$Te$_3$ is a ferromagnetic, quasi-two-dimensional layered material with perpendicular magnetic anisotropy, strong spin-orbit coupling, and non-trivial band topology. The non-trivial topology results in an intrinsic anomalous Hall conductivity (AHC) that switches sign under filling and biaxial strain. Thin films can exhibit half metallicity. Using density functional theory combined with maximally localized Wannier functions, we reveal the physical origins of the sensitivity of the sign of t…

Evolution of Berry Phase and Half-Metallicity in Cr$_2$Te$_3$ in Response to Strain, Filling, Thickness, and Surface Termination
Sohee Kwon, Yuhang Liu, Hang Chi, Gen Yin, Mahesh R. Neupane, Roger K. Lake
https://arxiv.org/abs/2404.02315

Evolution of Berry Phase and Half-Metallicity in Cr$_2$Te$_3$ in Response to Strain, Filling, Thickness, and Surface Termination
Cr$_2$Te$_3$ is a ferromagnetic, quasi-two-dimensional layered material with perpendicular magnetic anisotropy, strong spin-orbit coupling, and non-trivial band topology. The non-trivial topology results in an intrinsic anomalous Hall conductivity (AHC) that switches sign under filling and biaxial strain. Thin films can exhibit half metallicity. Using density functional theory combined with maximally localized Wannier functions, we reveal the physical origins of the sensitivity of the sign of t…

On Other Useful Sites - Archived and additional links, videos, and older material from yesteryear. - https://www.earth.org.uk/note-on-other-sites.html

On Other Useful Sites
Archived and additional links, videos, and older material from yesteryear.

Adsorption of Gases on Ti3C2Tx MXene: Implications from X-ray Photoelectron Spectroscopy
Lars-{\AA}ke N\"aslund, Esko Kokkonen, Martin Magnuson
https://arxiv.org/abs/2404.03287

Adsorption of Gases on Ti3C2Tx MXene: Implications from X-ray Photoelectron Spectroscopy
One of the most explored MXenes is the Ti3C2Tx, where Tx is designated to inherently formed termination species. Among many applications, Ti3C2Tx is an excellent material for energy storage, energy converting, and CO2-capturing devices. However, active sites for adsorption and surface reactions on the Ti3C2Tx-surface are still open questions to explore, which have implications for preparation methods when to obtain correct and optimized surface requirements. Here we use X-ray photoelectron spec…

This https://arxiv.org/abs/2311.14018 has been replaced.
initial toot: https://mastoxiv.page/@a…

Fabrication and extreme micromechanics of additive metal microarchitectures
The mechanical performance of metallic metamaterials with 3-dimensional solid frames is typically a combination of the geometrical effect ("architecture") and the characteristic size effects of the base material ("microstructure"). In this study, for the first time, the temperature- and rate-dependent mechanical response of copper microlattices has been investigated. The microlattices were fabricated via a localized electrodeposition in liquid (LEL) process which enables high-precision additive…

This https://arxiv.org/abs/2311.14018 has been replaced.
initial toot: https://mastoxiv.page/@a…

Fabrication and extreme micromechanics of additive metal microarchitectures
The mechanical performance of metallic metamaterials with 3-dimensional solid frames is typically a combination of the geometrical effect ("architecture") and the characteristic size effects of the base material ("microstructure"). In this study, for the first time, the temperature- and rate-dependent mechanical response of copper microlattices has been investigated. The microlattices were fabricated via a localized electrodeposition in liquid (LEL) process which enables high-precision additive…

Wenzhou TE: a first-principles calculated thermoelectric materials database
Ying Fang, Hezhu Shao
https://arxiv.org/abs/2404.02571 https://

Wenzhou TE: a first-principles calculated thermoelectric materials database
Since the implementation of the Materials Genome Project by the Obama administration in the United States, the development of various computational materials databases has fundamentally expanded the choices of industries such as materials and energy. In the field of thermoelectric materials, the thermoelectric figure of merit ZT quantifies the performance of the material. From the viewpoint of calculations for vast materials, the ZT values are not easily obtained due to their computational comp…

Wenzhou TE: a first-principles calculated thermoelectric materials database
Ying Fang, Hezhu Shao
https://arxiv.org/abs/2404.02571 https://

Wenzhou TE: a first-principles calculated thermoelectric materials database
Since the implementation of the Materials Genome Project by the Obama administration in the United States, the development of various computational materials databases has fundamentally expanded the choices of industries such as materials and energy. In the field of thermoelectric materials, the thermoelectric figure of merit ZT quantifies the performance of the material. From the viewpoint of calculations for vast materials, the ZT values are not easily obtained due to their computational comp…