Academic Articles & Research Papers

Physical Properties of Modified Polyphenylene Oxide as a Composite Material for Hydrogen Fuel Cell Stack Enclosure Suitable for Injection Molding

There is an increasing need for securing development technology for suitable materials to obtain more productive and lightweight automobile parts, including hydrogen fuel cell stack enclosures. Due to the poor moldability of Poly-Phenylene ...

Flexural Behaviour of Corroded RC Beams Strengthened with CFRCM: Refined Modelling, Parametric Analysis, and Design Assessment

Reinforced concrete (RC) beams strengthened with carbon-fabric-reinforced cementitious matrix (CFRCM) systems have shown potential for restoring flexural performance, yet their effectiveness under different corrosion levels remains insuffic...

A Transitional Connection Method for the Design of Functionally Graded Cellular Materials

In recent years, the functionally graded materials (FGM) with cellular structure have become a hot spot in the field of materials research. For the continuously varying cellular structure in the layer-wise FGM, the connection of gradient ce...

Investigation of the Friction Performance of G3000 (Variant), GG20, and GG15 (High Carbon) Cast Brake Discs Using the SAE J2522 Procedure

This study compares the friction performance of three commonly used cast brake disc materials in the automotive industry: the G3000 variant, GG20, and GG15 (high carbon content). Samples were tested on an inertia dynamometer following the S...

Pt and CoB trilayer Josephson $$\pi $$ π junctions with perpendicular magnetic anisotropy

Abstract We report on the electrical transport properties of Nb based Josephson junctions with Pt/Co $$_{68}$$ 68 B $$_{32}$$ 32 /Pt ferromagnetic barriers. The barriers exhibit perpendicular magnetic anisotropy, which has the main advantag...

O silêncio como discurso: o projeto de lei “escola sem partido” e a invisibilidade da juventude LGBT na lógica da mordaça

Este artigo problematiza a interdição à cidadania da juventude LGBT a partir tanto da atual tramitação do PL (Projeto de Lei) “Escola sem Partido” na Câmara Municipal de Campo Grande – MS quanto das reverberações dos discursos que o permeia...

Los términos "Iberia" e "Íberos" en las fuentes grecolatinas: estudio acerca de su origen y ámbito de aplicación

Este artículo se propone dos objetivos fundamentales: establecer la relación que pudo existir entre la Iberia póntica y el origen del nombre de la Iberia hispánica, mediante el estudio de la posible información contenida en algunas narracio...

Zooarqueología de una unidad doméstica Formativa: El caso de Loma Alta (Catamarca, Argentina) Zooarchaeology of a Formative domestic unit: The case of Loma Alta (Catamarca, Argentina)

El propósito de este trabajo es el de aportar datos e interpretaciones de la economía de una unidad doméstica de un sitio del Período Formativo del noroeste argentino (Loma Alta Núcleo E) relacionada con el manejo de camélidos. El registro ...

EKSPLOITASI FAUNA DI SITUS LIANGAN, TEMANGGUNG: KAJIAN ARKEOZOOLOGI

Liangan is a settlement site of Old Mataram in periodic of VI-X AD. Various aspects of ancient Javanese culture has been recovered from Liangan site, but has never been examined the relationship between human and fauna in the past. The stud...

La producción minera en San José del Abra durante el período Tardío atacameño

Este artículo revisa las evidencias arqueológicas asociadas a la explotación de minerales cupríferos en la localidad de San José del Abra durante el período Tardío (ca. 1450-1536 DC). Los sitios estudiados incluyen minas, áreas de trabajo, ...

Compression and Tensile Testing of L-PBF Ti-6Al-4V Lattice Structures with Biomimetic Porosities and Strut Geometries for Orthopedic Implants

In an effort to contribute to the ongoing development of ASTM standards for additively manufactured metal lattice specimens, particularly within the field of medicine, the compressive and tensile mechanical properties of biomimetic lattice ...

Sensitivity Analysis and Uncertainty Quantification of Nanoparticle Deposition from Tongue Morphological Variations

The human tongue has highly variable morphology. Its role in regulating respiratory flows and deposition of inhaled aerosols remains unclear. The objective of this study was to quantify the uncertainty of nanoparticle deposition from the va...

The Numerical Solution of Fractional Parabolic Partial Integro-Differential Eequations by Gaussian and Inverse Multiquadric Radial Basis Functions

Introduction Many mathematical formulations of physical phenomena contain integro-differential equations. These equations arise in fluid dynamics, biological models, chemical kinetics, ecology, control theory of financial mathematics, aeros...

Ground calibration tests of the laser altimeter (LIDAR) for MMX mission

Abstract The spacecraft for the Japanese Martian Moon eXploration mission is equipped with a LIDAR laser altimeter. The slant range continuously measured by the LIDAR is used for the correction of the local topography and the orbit and atti...

Two-dimensional metallic tantalum ditelluride with an intrinsic basal-plane activity for oxygen reduction: A microkinetic modeling study

Two-dimensional (2D) materials have exhibited great potential for replacing costly Pt for oxygen reduction reaction (ORR) because of their distinctive structural features and high pre-site activity. However, their performance is generally h...

Disturbance Compensation Model Predictive Control for Free‑Floating Space Robots

Free-floating space robots （FFSRs） have emerged as critical unmanned platforms for long-term in-orbit services thanks to their high mobility and extended operational lifespan. However， external disturbances caused by dynamic space environme...

Evaluating key predictors of breast cancer through survival: a comparison of AFT frailty models with LASSO, ridge, and elastic net regularization

Abstract Background Frailty models are extensively utilized in survival analysis to address unobserved heterogeneity among individuals. However, selecting the most robust model for survival prediction, especially in the context of high-dime...

Darboux operators for linear first-order multi-component equations in arbitrary dimensions

Extremes of Product of Gaussian Random Variables

We investigate the asymptotic behavior of the product of Gaussian random variables, with a focus on tail probabilities. Although sums of normal variables are well understood through classical limit theorems, their products exhibit significa...

Which scoring systems are useful for predicting the prognosis of lower gastrointestinal bleeding? Old and new

Abstract Background The incidence of lower gastrointestinal bleeding is on the rise, prompting the creation of various scoring systems to forecast patient’s outcomes. But there is no single unified scoring system and these scoring systems c...