Aoyama Gakuin University

Nonlinear analysis of an aeroelastic response generated on a flexible sheet under periodic aerodynamic excitation

This study presents a nonlinear analysis of the aeroelastic response of a cantilevered flexible sheet under periodic aerodynamic excitation. The aerodynamic excitation is generated by upstream excitation plates (oscillating thin and rigid plates). Periodically fluctuating flow is...

Preliminary Classification of Black Writing Pen Inks Using Optical-probing Photoacoustic Measurement by Pulsed Laser Excitation Combined with Machine Learning for Forensic Applications

Abstract We successfully measured the photoacoustic (PA) signals of black inks in solution from marking pens using a combination of optical-probing photoacoustic spectroscopy (OPPAS) with nanosecond pulsed laser excitation. OPPAS is a highly sensitive technique that detects heat...

Between Sacred Tradition and Urban Form: An OpenStreetMap-Based Analysis of Church Orientation Patterns in Milan

Abstract. The orientation of Christian churches has long attracted attention in liturgical studies, architectural history, and archaeoastronomy. In the Catholic tradition, churches are often associated with an eastward-facing sanctuary and a westward-facing entrance, but in urban...

How Does Walkability for Elderly People Differ between Hilly and Flat Urban Areas? A Case Study of Shin-Yurigaoka Station and Nagareyama-Otakanomori Station

Abstract. This study evaluates station-area environments that enable elderly people to walk comfortably in their daily lives. Conventional walkability assessments often emphasize street connectivity and proximity to destinations, but they do not fully capture walking burdens spec...

How Norms Depend on the Presence and Status of Observers: The Relational Contingency of Everyday Behaviors in 90 Societies

Norms are fundamental to social life, but basic questions about how they are affected by social context remain. Specifically, how do normative constraints depend on the presence and status of observers, and how do such relational contingencies vary across cultures? Using data fro...

WHEN DO BOUNDARY SPANNERS TRANSFER AND CREATE KNOWLEDGE?: THE ROLE OF NETWORK CENTRALITY

Innovation requires not only the exploitation of existing knowledge but also the exploration of new knowledge across organisational boundaries. However, when firms differentiate their research and development (R&D) organisations and different norms are consequently formed, invent...

Designing Epistemic Partnerships with Generative AI: A Four-Stage Model of Student Engagement in Scientific Argumentation

Abstract This study examined how a design-based learning environment supported first-year undergraduates’ ( N = 31) epistemic engagement with generative AI in a science argumentation course. A two-year design-based research (DBR) study was conducted across two cycles (2024: n = 1...