Electric Propulsion Laboratory (United States)

Strong-Interaction-Assisted Surface Fluorine Enrichment in Fluorinated AB-type Polyurethane Coatings

Abstract Achieving efficient hydrophobization in polyurethane coatings under low-fluorine modification remains challenging because surface functionality must be introduced without compromising bulk cohesion and mechanical integrity. Here, a fluorinated AB-type polyurethane (PUAB)...

A Unified Cosmological Framework: Primordial Rank-2 Tensor Field Decomposition, Parametric Reheating, and Israel-Stewart Causal Dissipation

We present a self-consistent, coordinate-invariant framework that unifies inflation, darkmatter, and dark energy via a single primordial Rank-2 tensor field (Bµν ). By decompos-ing this field into high-frequency (fast) and low-frequency (slow) modes during the post-inflationary e...

A Unified Cosmological Framework: Primordial Rank-2 Tensor Field Decomposition, Parametric Reheating, and Israel-Stewart Causal Dissipation

We present a self-consistent, coordinate-invariant framework that unifies inflation, darkmatter, and dark energy via a single primordial Rank-2 tensor field (Bµν ). By decompos-ing this field into high-frequency (fast) and low-frequency (slow) modes during the post-inflationary e...

Hard Carbon Networks for Mitigating Graphite Lattice Strain Under Extreme‑Low‑Temperature Fast Charging

ABSTRACT Low‐temperature fast charging of lithium‐ion batteries is primarily constrained by sluggish reaction kinetics and mechanical degradation of graphite anodes. Here, a kinetic–structural coordination strategy based on a 15 wt.% hard carbon (HC) percolating network embedded...