Guidance, stability, control and estimation, pattern recognition, stochastic processes, optimization, neural network applications to control, numerical methods and design.

Air Pollution Control, Algae, Algal Bio-fuels, Alternative Fuel, Bio-reactor, Biodiesel, Blue-Green Algae, Coal, Energy, Gassification of Coal and Biomass, Leadership Development, Mechanical Engineering, Power Generation, Shale and Shale Energy

Dynamic modeling and control of micro- and nano-positioning systems, atomic force microscopes and additive manufacturing systems; volumetric error compensation; iterative learning control, multi-dimensional control, and signal processing.

Composite materials, smart structures, nanocomposites, biocomposites, structural dynamics, finite element analysis, damage monitoring, composite manufacturing and experimental characterization.

Aircraft structures, fracture mechanics, fatigue and failure analysis; micromechanics; composite materials and structures; process modeling of ceramic matrix composites; friction and wear of composites; and fracture of laminated glazing.

Mechanics and microstructural evolution of advanced manufacturing and materials processing, multiscale modeling of materials by bridging first-principles calculations, molecular dynamics simulations, and finite element methods, materials design and manufacturing processes of composites and ceramics, relationships between the microstructure, properties, and processing of materials.

Combustion, laser based diagnostics for sprays and combustion, optical
measurement systems, fuel injection, and internal combustion engines.

Nanophotonics devices based on silicon photonics, plasmonics and metamaterials; Light-matter interactions in photonic nanostructures; Optical sensing; Quantum dots; Quantum optics and quantum information processing; solar energy harvesting; light emitting devices 

Plasma aerospace applications; Space propulsion; Plasma-material interactions; Plasma physics and rarefied gas dynamics; High-performance computing

Fluid dynamics, heat transfer, and thermodynamics of energy systems. Heat and mass transfer in buoyant flows, second-law and exergy analysis, numerical simulation of transport phenomena and experimental methods.

Computational aerodynamics/aerothermodynamics, hypersonic flows and technologies, uncertainty quantification, planetary entry/descent/landing of spacecraft, computational fluid dynamics, aerodynamic shape optimization, robust design, numerical methods.

Design theory and methodology, complex systems design and vehicle dynamics.

Fluid dynamics, aero-structure interaction and control, active flow control, unmanned air vehicles (UAV), electrochemical magnetohydrodynamics-based microfluidics, CFD simulation of transport phenomena.

Conventional Energy (combustion, IC engines, coal power plants, fluid and heat transport), Alternative Energy (characterization of solid oxide fuel cells, modeling of fuel cells, hydrogen technologies, alternative fuels, clean coal technologies), Environmental Science & Technology (air pollutants, particulates, measurement techniques), Various Fields (synthesis of nanoparticles, laser diagnostics, fire safety, thermal engineering)

System dynamics, control, robotics, and neurotechnologies.

Nonlinear Dynamics and Vibrations, study of deterministic and random dynamical systems, model order reduction, theoretical modeling and numerical computation and structural dynamics.

Modeling, analysis, monitoring, and control of manufacturing processes (metal cutting, wire saw machining, friction stir welding, laser metal deposition, freeze–form extrusion fabrication, glass direct energy deposition, and selective laser melting), estimation and control of electrochemical alternative energy systems (hydrogen fuel cells and advanced batteries) and electro–hydraulic systems, and digital control applications.

Rapid prototyping, additive manufacturing, intelligent manufacturing, virtual reality, CAD/CAM, robotics, mechatronics and automatic control. 

Metal additive manufacturing process design, modeling, integration, monitoring, and control; CAD/CAM.

Mechanical design, rigid-body and compliant mechanism design, high-performance machinery analysis and design, machine vibration and stability.

Kinematics, mechanical design and synthesis of mechanisms.

Manufacturing including machining, metalforming, machine tool dynamics, acoustic emission, sensors and signal processing, CNC, CAD/CAM, machine tool metrology, neural network and expert system applications; smart structures including intelligent health monitoring and damage assessment of composite structures; non-destructive evaluation.

Advanced li-ion battery, beyond li-ion battery, energy storage system, renewable energy system, grid energy storage, nano, macro-mechanics of materials, self-assembly of nanoparticles, nanostructure, multiphysics, multiscale experiment and simulation.

Astrodynamics, orbital mechanics, spacecraft design, spacecraft mission design, satellite attitude dynamics, nonlinear analysis, dynamics and control, optimization.

Fluid dynamics, computational fluid dynamics, hypersonic propulsion systems, computational analysis of jet mixing, flow losses and mixing enhancement in combustors, aircraft gas turbine ramjet propulsion systems, and scramjet performance.

Design theory, materials and structures, educational research.

Physical Human-Robot Interaction (pHRI), Physical Human-Human Interaction (pHHI), Human Movement Assistance, Rehabilitation Robotics, Wearable Devices, Energy-Harvesting from Human Movement, Design and Instrumentation of Medical Devices.

Dynamics, vibrations, modeling and development of piezoactuators and transducers-mechatronics, mechanics of bone, design of orthopedic implants, structural dynamics, optimal design and acoustics.

Aiming at the utilization of environment-friendly and alternative fuels in future power generation, fuel processing and emission control, Dr. Sui's main research interests are catalytic combustion, coupling of hetero-/homogeneous thermochemical processes, and the related computational methods and experimental diagnostics.

Fluid dynamics, micro/nano-scale heat and mass transport, interfacial phenomena, micro/nanofluidics, bioMEMS, lab-on-a-chip, micro/nano-fabrication, bubble dynamics, droplet dynamics, acoustics, acoustic streaming, electrohydrodynamics, electrokinetics, and multi-phase flow.

Optical materials and devices in nanophotonics and plasmonics; Physics and applications of optical metamaterials; Nanoscale optomechanics, optical nanoelectromechanical systems (NEMS); Integrated optofluidic devices and optical sensors; Photon management for solar/thermal energy harvesting; Optical device micro-/nano-fabrication.