Materials Literature
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Abstract Structural elucidation remains a central challenge in modern chemistry, particularly in the determination of relative stereochemistry when experimental spectroscopic data are insufficient. Among computational approaches, the DP4+ method has become a widely adopted tool for NMR-based stereochemical assignment…
ABSTRACT Multimodal imaging that integrates x‐ray, white light, and near‐infrared (NIR) information offers enhanced diagnostic accuracy. However, the absence of material that can efficiently respond to all three types of signals requires the use of separate hardware for each modality, inevitably causing pixel misalign…
ABSTRACT Industrial separation of C2 gas mixtures, particularly challenging C 2 H 2 /CO 2 , C 2 H 2 /C 2 H 4 , and C 2 H 6 /C 2 H 4 separations, occupies a considerable portion of energy consumption in chemical production, highlighting the urgent need for low‐carbon separation technologies. Adsorptive separation using…
Ensuring the integrity of external anti-corrosion coatings is critical to the safe operation of long-distance oil and gas pipelines. Construction-site images contain complex backgrounds, multi-scale targets, and many elongated or weak-boundary coating conditions, challenging conventional bounding-box regression under…
This study investigates the effect of oxygen pressure on the structural-phase state, microstructure, mechanical properties and tribological behavior of Zr(C,N)-based coatings deposited on U8G tool steel by high-velocity oxygen fuel (HVOF) spraying. The coatings were produced at oxygen pressures of 4.0 × 10 5 , 4.3 × 1…
FINDING: Golden ratio (φ) appears in photonic crystal structures, Fibonacci-based audio frequencies, and galaxy-scale spatial patterns, with a formal proof that infinite sequences share the φ property. MATH: φ = (1+√5)/2 ≈ 1.618; reciprocal φ⁻¹ = φ-1 ≈ 0.618; Fibonacci frequencies: 89, 144, 233, 377, 610, 987 Hz (rati…
Reducing waste and enabling material reuse are central goals for sustainable advanced manufacturing. In light-based 3D printing, this requires moving beyond permanent networks toward systems that can be easily returned to their original molecular building blocks, while preserving good performance. Here, a shift toward…
Thermal degradation of InGaN quantum dots (QDs) during the temperature ramp for GaN quantum-barrier growth can compromise micro-light-emitting-diode active regions. Five-period InGaN/GaN QD structures with low-temperature-grown GaN (LT-GaN) caps of 0 nm (C0), 2 nm (C2), and 4 nm (C4) were studied. The nominal total Ga…
**——The Fractal Architecture and Cross-Level Unity of the Structural Axiom System** **Author: Lin Xiaohei** **Date: June 15, 2026**
FINDING: Babylonian base-60 (sexagesimal) system reveals advanced astronomical precision, including Jupiter's orbit calculations using trapezoid integration. | MATH: Base-60 positional notation; Plimpton 322 (Pythagorean triples: a² + b² = c²); Jupiter's orbital arc area approximated via trapezoidal rule (foreshadowin…
Wydawnictwo SIGMA-NOT wydaje czasopisma fachowe informujące swoich czytelników o najnowszych osiągnięciach naukowych i nowoczesnych rozwiązaniach technicznych w Polsce i na świecie, popularyzuje problemy techniczne oraz poszerza wiedzę i kulturę techniczną.
The design choices of modern generative systems-noise schedules, EMA weights, VQ codebooks, classifier-free guidance, sampling temperature, learning-rate schedules-are generally treated as independent engineering decisions. This paper shows that they all realize a single information-physics structure with two axes: a…
Nanoimprint lithography (NIL) has matured over three decades into a high-resolution patterning technique with applications spanning semiconductor manufacturing, photonics, biomedical patterning and microfluidic fabrication. Recent reviews describe NIL molds, resist chemistries and demolding physics in considerable det…
Metal- organic frameworks (MOFs) constitute a promising class of crystalline porous materials formed through the coordination of metal ions or metal clusters with organic bridging ligands. These materials have emerged at the intersection of coordination chemistry, supramolecular chemistry, and materials science. Their…
Diabetic chronic wounds have become a major challenge for clinical treatment due to their complex pathological microenvironment, including persistent inflammatory response, angiogenesis disorder, excessive oxidative stress, and susceptible infection. Traditional dressings as a passive barrier have difficulty meeting t…
This technical note publishes a reproducible arbitrary-precision layer for the OUXSPACE / STRING THEORY-2 fine-structure programme. Its primary mathematical object is the closed form αₛₜ₂ = 105/[2π(2125+2√6810)], generated by the declared OUXSPACE closure chain. The note provides: (i) the exact algebraic compression o…
Using bismuth oxide (Bi2O3) as the matrix and employing a doping modification strategy to introduce the rare-earth element La, this study prepared La/Bi2O3 visible-light-responsive photocatalysts with different doping ratios. The research systematically investigated the regulation mechanisms of La doping on the materi…
To address the challenges in detecting and identifying interfacial and internal defects in Fiber Metal Laminates, this paper proposes a non-destructive testing method based on dynamic scanning eddy current thermography using thermal optical flow analysis. The proposed method models the unsteady-state temporal evolutio…
Abstract Raman spectroscopy, as a nondestructive testing technique, is often limited by noise interference and feature distortion in portable instruments, which severely affect the accuracy of substance detection. To address this, this paper proposes a fast and effective portable-to-benchtop Raman spectral translation…
This paper presents the experimental and computational results of the comparative study of microstructure, mechanical properties and corrosion behavior of tungsten inert gas (TIG)-welded 304, 309/310, and 316 steels. The study involves the coupled influence of microstructural changes, sensitization tendency, mechanica…