He Li

A Comparative Study of Blockchain Consensus Algorithms

2020 · Journal of Physics Conference Series

Abstract A blockchain is a decentralized distributed public database. It does not have a central authority to maintain this public database by running a cryptographic protocol with distributed nodes. Bitcoin is currently the hottest item …

Practical high-speed Gaussian coherent state continuous variable quantum key distribution with real-time parameter monitoring and post-processed key distillation

2023

We demonstrate Gaussian modulated continuous variable quantum key distribution at 50MHz symbol rate. Unlike most demonstrations, we record received signals in real-time and distil keys, producing a record 3Mb/s key rate after 25km transmission.

Slice optimisation for high-speed Gaussian coherent state continuous variable quantum key distribution

2023

We demonstrate, for the first time, slice reconciliation with optimised guard bands on Gaussian modulated continuous variable quantum key distribution. We produce a record 5Mb/s key rate after 25 km transmission distance with multilevel slicing.

A Unified Perspective on Multiple Shooting In Differential Dynamic Programming

2023 · arXiv (Cornell University)

Differential Dynamic Programming (DDP) is an efficient computational tool for solving nonlinear optimal control problems. It was originally designed as a single shooting method and thus is sensitive to the initial guess supplied. This work …

The Impact of Blended Learning on Students' Design and Fabrication Outcomes of Trendy Play Furniture: A Structural Equation Modeling Study

2025

Educational technology advances quickly while Blended Learning demonstrates strong potential for teaching STEAM subjects. The research used Structural Equation Modeling (SEM) to evaluate Blended Learning effects on students' trendy play furniture design and fabrication results …