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Radiation damage studies of silicon photomultipliers for the CMS MIP Timing Detector

arXiv:2606.10121v1 Announce Type: new Abstract: Recently developed 15 um, 20 um, 25 um and 30 um cell size Hamamatsu Silicon Photomultipliers (SiPMs) were irradiated with reactor neutrons at JSI (Ljubljana) up to 2*10^14 n/cm^2 (1 MeV equivalent). The parameters of new and irradiated SiPMs were studied using pulsed light illumination. The effects of the neutron radiation on breakdown voltage, signal amplitude, dark current and noise for these devices are shown and discussed.

arXiv Physics 15h ago

Optimal Kron-based Reduction of Networks (Opti-KRON) for Three-phase Distribution Feeders

Announce Type: replace Abstract: This paper presents a novel structure-preserving, Kron-based reduction framework for unbalanced distribution feeders. The method aggregates electrically similar nodes within a mixed-integer optimization (MIP) problem to produce reduced networks that optimally reproduce the voltage profiles of the original full network. To overcome computational bottlenecks of MIP formulations, we propose an exhaustive-search formulation to identify optimal aggregation...

arXiv CS 1d ago

Capstone – multi-platform, multi-architecture disassembly framework

Welcome Capstone is a lightweight multi-platform, multi-architecture disassembly framework. Our target is to make Capstone the ultimate disassembly engine for binary analysis and reversing in the security community. Highlight features - Multi-architectures: ARM, ARM64 (ARMv8), BPF, Ethereum VM, M68K, M680X, Mips, MOS65XX, PowerPC, RISC-V, SH, Sparc, SystemZ, TMS320C64X, TriCore, Webassembly, XCore and X86 (16, 32, 64).

Hacker News 7d ago

PlayStation Architecture

Supporting imagery A quick introduction Sony knew that 3D hardware could get very messy to develop for. Thus, their debuting console will keep its design simple and practical… Although this may come at a cost!

Hacker News 7d ago

Show HN: Solving complex optimization problems with Google OR-Tools in browser

Solve complex optimization models from TypeScript with Google OR-Tools running as multithreaded WebAssembly. Used in PragmaPlanner Run the local test site: npm install npm run dev Install from npm: npm install or-tools-wasm Import the solver API you need from its subpath: import { CpSat } from 'or-tools-wasm/cp-sat'; Public solver APIs live under solver-scoped subpaths: import { CpModel, CpSolver } from 'or-tools-wasm/cp-sat'; import { RoutingIndexManager, RoutingModel } from...

Hacker News 7d ago

Immunomodulatory Effects of Insulin-Derived Fibrils from Infusion Pumps: Role of Phenolic Preservatives in Macrophage Activation

Background: Protein fibrillation represents a critical challenge in therapeutic insulin delivery, yet the structural determinants and immunological consequences of insulin-derived fibrils (IDFs) formed in the presence of phenolic preservatives remain poorly characterized. This study investigated the structural characteristics of IDFs formed with (IDF (+)) and without (IDF (-)) phenolic preservatives and elucidated their differential immunomodulatory mechanisms in bone marrow-derived...

bioRxiv 1d ago

LEGS: Laplacian-Enhanced Gaussian Splatting with a Nonlinear Weighted Loss

Announce Type: new Abstract: 3D Gaussian Splatting (3DGS) has become an efficient explicit representation for radiance field reconstruction and real-time novel view synthesis. However, its standard photometric loss treats flat and structure-rich regions similarly, which may limit the recovery of sharp contours and fine details. Edge-Guided Gaussian Splatting (EGGS) improves structure awareness through edge-guided weighting, but mainly relies on first-order gradient responses and linear...

arXiv CS 1d ago

Witness-split + window-cardinality refinement for $r_3(N)$: Architecture, empirical results, and a structural hard pocket

arXiv:2606.04016v1 Announce Type: new Abstract: We describe a reproducible computational framework for upper-bound searches on r_3(N), the maximum size of a 3-term-arithmetic-progression-free subset of [1,N]. The framework combines a verified lower-bound witness, endpoint forcing, depth-d witness-variable splitting, OEIS A003002 window-cardinality pruning, and recursive refinement of timed-out subproblems. Applied to the frontier case N = 212, K = 44, it found no feasible 44-set across...

arXiv CS 6d ago

Weights to Code: Extracting Interpretable Algorithms from the Discrete Transformer

arXiv:2601.05770v3 Announce Type: replace Abstract: Algorithm extraction aims to synthesize executable programs directly from models trained on algorithmic tasks, enabling de novo recovery of executable mechanisms from weights without relying on human-written target programs. However, applying this paradigm to Transformer is complicated by representation entanglement (e.g., superposition), where features encoded in overlapping directions substantially hinder the recovery of symbolic...

arXiv CS 9d ago

Performance of an LYSO-Based Active Converter for a Conversion Spectrometer aiming for 52.8 MeV photon detection in Future $\mu^+ \to e^+ \gamma$ Search Experiments

arXiv:2512.24209v3 Announce Type: replace Abstract: To facilitate future $\mu^+ \to e^+ \gamma$ search experiments with a branching-ratio sensitivity of $10^{-15}$, we are developing a conversion spectrometer that incorporates an active LYSO converter. The converter generates $e^+e^-$ pairs from incident photons while simultaneously measuring their energy deposition and timing, thereby enabling precise reconstruction of 52.8 MeV photons. The design goals include a time resolution of 30 ps...

arXiv Physics 9d ago