Osaka Prefecture University

Graph-based reinforcement learning framework with control barrier functions for safe marine traffic control

Centralized control that optimizes ship behavior is an effective approach for managing marine traffic in congested waters. This study proposed a decision-making framework that generates optimal control actions for all ships in a sea area using traffic data represented as a graph....

From Flower Micelles to Flower Necklaces: Self-Assembly of Dodecyl Succinate−Modified Pullulan in Aqueous Solution

Abstract Fourteen pullulan derivatives bearing dodecyl succinate side chains (PulDDS) were synthesized from seven parent pullulan samples covering wide ranges of weight-average molar mass (Mw) and degree of substitution (DS). Their micellar structures in 25 mM aqueous NaCl were c...

Association Between EEG Activity and Motor Imagery Ability in Single-Joint Movements: A Pilot Study

Background/Objectives: This exploratory pilot study examined whether motor imagery ability is associated with electroencephalography (EEG) oscillatory activity during single-joint motor imagery. Methods: Eleven healthy young adults performed motor execution, kinesthetic motor ima...

Synergistic ZnMn2O4/Cu3P coupling via a Type-II p-n heterojunction for enhanced charge separation and photocatalytic hydrogen evolution

The development of efficient and sustainable photocatalysts for solar-driven hydrogen production is vital for advancing clean energy technologies. In this work, a ZnMn 2 O 4 /Cu 3 P heterojunction photocatalyst is reported for the first time. The ZnMn 2 O 4 (ZMO) component was sy...

Preliminary assessment of airborne microplastics: a case study of Bandung City, Indonesia

Despite the growing concern surrounding airborne microplastics (AMPs), their size-dependent behavior in tropical urban environments remains poorly understood. This study provides a preliminary assessment of the concentration, polymer composition, morphology, and size-segregated a...

Reaction of α-Iodoalkyldifluoroboranes with Copper(II) Carboxylates via a Tetracoordinate Boron Intermediate

Abstract The reaction of α-iodoalkyldifluoroboranes with copper(II) carboxylates affords α-acyloxyalkyldifluoroboranes. In this process, the high Lewis acidity of alkyldifluoroboranes constitutes the driving force for the formation of a tetracoordinate boron intermediate, as sugg...

A Bayesian Approach to Nuclear Spin Relaxation Phenomena in Topological Kondo Insulator SmB 6

In studies of the promising topological Kondo insulator (TKI) candidate SmB 6 , nuclear magnetic resonance (NMR) measurements of the spin–lattice relaxation rate, 1/T 1 , have provided crucial insights into this compound: for example, the unique opening of a small hybridization g...

ProvMind: provenance-grounded reasoning for materials synthesis

Materials process optimization requires reasoning over routes, conditions, tools and material-flow dependencies, yet most computational formulations flatten synthesis procedures into text or ordered steps. We introduce MatProcBench, a provenance-grounded benchmark constructed fro...

Social Concern in a Bilateral Monopoly with Diseconomies of Scale

Abstract This study examines socially concerned delegation in a bilateral monopoly where upstream production exhibits diseconomies of scale, considering both manufacturer-leadership and simultaneous-move timing structures. While existing studies emphasize the coordination-improvi...