现任职务：

主要研究内容：Radio observations and theoretical (analytical and numerical) studies in pulsar astrophysics 

Theoretical:Structure of pulsar magnetosphere; Radio emission stability as revealed by variations in pulsar single pulses and integrated profiles; Magnetospheric state switching; Diversity in high-energy light curves; Pulsar electrodynamics. 

Observational:Characteristics ofradiopulsar single pulses and integrated profiles; Pulsar high-energy pulse profiles; Radio-Frequency Interference (RFI) investigation and its effects on the sensitivity and quality of pulsar radio data. 

Computational:Pulsar emission geometry; Magnetic field structure in pulsar magnetospheres. 

主持、参与科研项目：

代表性科研成果（著作、论文、专利等）： 

1. A model for abrupt changes in pulsar radio profile, R. Yuen, D. B. Melrose, MNRAS,2017 

2. Pulsar electrodynamics: an unsolved problem, D. B. Melrose, R. Yuen, J. Plasma Phys., 2016 

3. Variations of P₂in subpulse drifting pulsars, R. Yuen, D. B. Melrose, M. A. Samsuddin, Z. Y. Tu, X. H. Han, MNRAS,2016 

4. Visibility of Pulsar Emission: Motion of the Visible Point, R. Yuen, D. B. Melrose, PASA,2014 

5. Non-Corotating Models for Pulsar Magnetospheres, D. B. Melrose, R. Yuen, MNRAS,2014 

6. Changes in Polarization Position Angle Across the Eclipse in the Double Pulsar System, R. Yuen, R. N. Manchester, M. Burgay, F. Camilo, M. Kramer, D. B. Melrose & I. H. Stairs,ApJL,2012 

参与研究组织：

Full Member of the Astronomical Society of Australia 

Member of the SKA Pulsars Science Working Group 

Member of the Theoretical Physics Group, SIfA, the University of Sydney, Australia