Takayuki Yamada

Construction of signed distance functions through an elliptic equation

Motivated by recent advances in structural optimization, we propose a novel method for constructing the distance function to the boundary of a given domain. Building on and extending the celebrated Varadhan asymptotic theory, our approach reformulates the governing equation into...

Polytetrafluoroethylene–nanocellulose composites with negative in-plane thermal expansion and low relative permittivity

Abstract Low-dielectric materials for advancing telecommunication technologies must exhibit a low coefficient of thermal expansion (CTE), low relative permittivity ( ε ), and low dielectric loss tangent (tan δ ) at frequencies > 10 GHz. However, these properties are difficult to...