7 citations · 13 across the 8 of their papers we have counts for
8 papers
Linear stability and viscoelastic response in weakly jammed frictional granular systems
Masanari Shimada, Yusuke Hara, Shihori Koyama +2
Granular particles typically feature contact friction, which gives rise to various nontrivial properties of granular materials. In this work, we investigate the linear stability of…
Enhanced collective vibrations in granular materials
Shihori Koyama, Norihiro Oyama, Hideyuki Mizuno +1
Granular materials are defined as collections of macroscopic dissipative particles. Although these systems are ubiquitous in our lives, the nature and the causes of their non-trivi…
Predicting unobserved climate time series data at distant areas via spatial correlation using reservoir computing
Shihori Koyama, Daisuke Inoue, Hiroaki Yoshida +2
Collecting time series data spatially distributed in many locations is often important for analyzing climate change and its impacts on ecosystems. However, comprehensive spatial da…
Dynamical cooperation model for mitigating the segregation phase in Schelling's model
Akihisa Okada, Daisuke Inoue, Shihori Koyama +2
We consider a Schelling-like segregation model, in which the behavior of individual agents is determined by a mixed individual and global utility. With a high ratio of global utili…
What Do Deep Neural Networks Find in Disordered Structures of Glasses?
Norihiro Oyama, Shihori Koyama, Takeshi Kawasaki
Glass transitions are widely observed in various types of soft matter systems. However, the physical mechanism of these transitions remains {elusive}, despite years of ambitious re…
Anomalous Diffusion in a Monolayer of Lightweight Spheres Fluidized in Airflow
Shihori Koyama, Tomoki Matsuno, Takashi Noguchi
This paper presents statistical analyses of random motions in a single layer of fluidized lightweight spherical particles. Foam polystyrene spheres were driven by an upward airflow…
Electro-osmotic diode based on colloidal nano-valves between double membranes
Shihori Koyama, Daisuke Inoue, Akihisa Okada +1
The rectification of electro-osmotic flows is important in micro/nano fluidics applications such as micro-pumps and energy conversion devices. Here, we propose a simple electro-osm…
Membranes for spontaneous separation of pedestrian counter flows
Shihori Koyama, Daisuke Inoue, Akihisa Okada +1
Designing efficient traffic lanes for pedestrians is a critical aspect of urban planning as walking remains the most common form of mobility among the increasingly diverse methods…