2011 International Sherwood Fusion Theory Conference: First Author Index
First Author Affiliation Date Time Room Type ID# Title
Akcay C. U Washington Monday, May 2 13:30-15:30 Salons ABC Poster 1P21 Resistive MHD Nimrod Simulations of HIT-SI Plasmas
Andreussi T. Alta SpA, Pisa, Italy Monday, May 2 13:30-15:30 Salons ABC Poster 1P29 Energy Principle and Stability of Symmetric MHD Equilibria in the Eulerian Description
Aydemir A.Y. U Texas Monday, May 2 13:30-15:30 Salons ABC Poster 1P13 "Snakes" and Similar Coherent Structures in Tokamak Plasmas
Azizov E. Kurchatov Center, Russia Monday, May 2 16:00-18:00 Salons ABC Poster 2P37 The Triniti Collaboration on the Ignitor Project
Baalrud S. U New Hampshire Monday, May 2 13:30-15:30 Salons ABC Poster 1P6 Current Sheet Stability and Plasmoid Formation in Hall MHD
Barnes D.C. Coronado Consulting Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P18 Low-Noise Time-Implicit PIC Methods
Barnes M. U Oxford, UK Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P30 Numerical Implementation of a Local Delta-f Gyrokinetic Model for Intrinsic Rotation
Belli E.A. GA Monday, May 2 13:30-15:30 Salons ABC Poster 1P31 Linearized Fokker-Planck Collisions in Neoclassical Transport Simulations
Berkery J.W. Columbia U Monday, May 2 11:05-11:35 204 Oral 1O3 Resistive Wall Mode Kinetic Stability Theory Advancements for Refined Comparison with Experiments
Betti R. PPPL Monday, May 2 13:30-15:30 Salons ABC Poster 1P36 A Comprehensive Model for the Kinetic Linear Stability of Axisymmetric Plasmas
Bhattacharjee A. U New Hampshire Monday, May 2 09:35-10:05 204 Oral 1O1 Onset of Fast Reconnection in High-Lundquist-Number Plasmas Mediated by the Plasmoid Instability
Bird T.M. U Wisconsin Monday, May 2 16:00-18:00 Salons ABC Poster 2P17 Flux Surface Shaping and Ballooning Instabilities in 3D Magnetostatic Equilibria
Brennan D. U Tulsa Monday, May 2 13:30-15:30 Salons ABC Poster 1P14 Energetic Particle Effects on the Resistive 2/1 Mode at Low q_min >~ 1
Breslau J.A. PPPL Monday, May 2 16:00-18:00 Salons ABC Poster 2P1 A Method for Reconstructing Equilibrium Energetic Particle Distributions from NUBEAM
Callen J.D. U Wisconsin Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P1 Collisional Effects, Regimes, and Resistivity in Low Aspect Ratio Tokamaks
Camporeale E. LANL Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P33 A Paradigm for the Stability of the Plasma Sheath
Cerfon A.J. MIT Monday, May 2 16:00-18:00 Salons ABC Poster 2P14 Asymptotic Expansion for Stellarator Equilibria with a Non-Planar Magnetic Axis
Chacon L. ORNL Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P3 An Asymptotic-Preserving Approach for Extremely Anisotropic Transport in General Magnetic Fields
Chang L. ANU, Australia Monday, May 2 16:00-18:00 Salons ABC Poster 2P27 A Flowing Plasma Model to Describe Drift Waves in a Cylindrical Helicon Discharge
Chen E.Y. U Texas Monday, May 2 16:00-18:00 Salons ABC Poster 2P13 Second Harmonics of Reversed Shear TAE in Alcator C-Mod Geometry
Chen G. ORNL Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P19 An Energy and Charge Conserving Implicit Electrostatic Particle in Cell Algorithm
Chen Y. U Colorado Monday, May 2 16:00-18:00 Salons ABC Poster 2P3 Fluid Electrons with Kinetic Closure for Long Wavelength Energetic Particle Driven Modes
Cheng J. U Colorado Monday, May 2 16:00-18:00 Salons ABC Poster 2P4 A Second-Order Semi-Implicit Delta-f Method for Kinetic MHD Simulation
Cheng X. UC Irvine Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P25 Gyrokinetic Particle Simulation of Spectral Cascade and Collisionless Dissipation in Kinetic Alfven Wave Turbulence
Cohen B.I. LLNL Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P31 Simulations of Resistive MHD in Realistic Tokamak Geometry with BOUT++
Cohen R.H. LLNL Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P32 Progress on Development of the COGENT Edge Kinetic Code
Cole A. U Wisconsin Monday, May 2 13:30-15:30 Salons ABC Poster 1P30 Low-Collisionality Neoclassical Toroidal Viscosity Using Langer's Method
Connor J.W. Culham, UK Monday, May 2 13:30-15:30 Salons ABC Poster 1P15 The Threshold of Marginal Stability of the Drift-Tearing Mode: Ion Kinetic and Diamagnetic Stabilizations
Cooper W.A. EPFL, Switzerland Tuesday, May 3 11:00-11:30 204 Oral 203 Free Boundary Tokamak MHD Equilibriia with 3D Helical Core Structures
Coppi B. MIT Monday, May 2 13:30-15:30 Salons ABC Poster 1P1 Plasma and Field Configurations Around Black Holes, Interface Between MHD Theory, Transport Processes and Self Organization
Coppi B. MIT Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P7 Heavy Particle Mode and Associated Particle Transport as the Signature of the I-Regime
Correa C. U Texas Monday, May 2 13:30-15:30 Salons ABC Poster 1P3 Nonlinear Dynamics of Whistler Waves and Magnetic Reconnection
Delzanno G.L. LANL Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P34 Dust in the Divertor Sheath: A Problem or a Solution?
Deng W. UC Irvine Monday, May 2 16:00-18:00 Salons ABC Poster 2P5 Gyrokinetic Particle Simulations of Reversed Shear Alfven Eigenmode with Plasma Current and Comparison with DIII-D Experiment
Dimits A.M. LLNL Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P6 Higher-Order Time Integration of Coulomb Collisions in Plasma Using Langevin Equations
Drake R.P. U Michigan Tuesday, May 3 08:30-09:30 204 Review 2R1 Basic Experimental Research in High-Energy-Density Physics
Ernst D.R. MIT Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P21 Exact Gyrokinetic Fokker-Planck Collision Operator
Ferraro N.M. ORNL Monday, May 2 13:30-15:30 Salons ABC Poster 1P34 Calculations of Linear Two-Fluid Resistive Plasma Response to Non-Axisymmetric Fields
Finn J.M. LANL Monday, May 2 16:00-18:00 Salons ABC Poster 2P31 Control of Ideal and Resistive Magnetohydrodynamic Modes in Reversed Field Pinches with a Resistive Wall
Fu X.R. U Texas Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P10 Turbulent Impurity Transport Studies for C-Mod
Ghantous K. PPPL Monday, May 2 16:00-18:00 Salons ABC Poster 2P2 Quasilinear Modelling of Energetic Particle Interaction with TAE Modes
Glasser A.H. U Washington Monday, May 2 13:30-15:30 Salons ABC Poster 1P22 A Fast Scalable Parallel Solver for the HIFI Extended MHD Spectral Element Code
Goldston R.J. PPPL Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P36 Heuristic Drift-Based Model of the Power Scrape-Off Width in H-Mode Tokamaks
Guazzotto L. U Rochester Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P37 Poloidal Flows in Tokamaks and MHD Pedestal Formation
Guo Z. LANL Wednesday, May 4 11:30-12:00 204 Oral 304 Parallel Transport of Long Mean-Free-Path Plasma on Open Magnetic Fieldlines
Hagstrom G. U Texas Monday, May 2 16:00-18:00 Salons ABC Poster 2P32 Caldeira-Leggett Model, Landau Damping, and the Vlasov-Poisson System
Hallatschek K. Garching, Germany Tuesday, May 3 10:30-11:00 204 Oral 2O2 Theory of External Geodesic Acoustic Mode Excitation
Hameiri E. NYU Monday, May 2 13:30-15:30 Salons ABC Poster 1P27 Transonic MHD Plasma Equilibria
Hanson J.D. Auburn U Monday, May 2 16:00-18:00 Salons ABC Poster 2P15 Three-Dimensional Equilibrium Reconstruction: V3FIT
Hassam A. U Maryland Monday, May 2 16:00-18:00 Salons ABC Poster 2P21 Centrifugal Confinement of Plasma Along Open Fieldlines in MCX and Comparison with Grad-Shafranov Theory
Hassan E. U Texas Monday, May 2 13:30-15:30 Salons ABC Poster 1P4 Drift Turbulence from Density Gradients in the Ionosphere
Hegna C.C. U Wisconsin Monday, May 2 16:00-18:00 Salons ABC Poster 2P18 Healing of Magnetic Islands in Stellarators by Rotation
Held E.D. Utah State U Monday, May 2 13:30-15:30 Salons ABC Poster 1P17 Benchmarks of Drift Kinetic Closures in NIMROD
Holland C. UCSD Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P12 Ensemble-Based Validation Metrics for Turbulent Transport Modeling
Holod I. UC Irvine Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P28 Particle and Pinch Fluxes of Toroidal Angular Momentum in Turbulent Plasmas
Horton W. U Texas Monday, May 2 16:00-18:00 Salons ABC Poster 2P25 Electron Temperature Gradient Drift Mode in the Columbia Linear Mirror
Hudson S.R. PPPL Monday, May 2 16:00-18:00 Salons ABC Poster 2P16 Computation of Non-Axisymmetric Equilibria Using a Partially-Relaxed Partially-Constrained MHD Equilibrium Model
Ishizawa A. NIFS, Japan Monday, May 2 11:35-12:05 204 Oral 1O4 Interaction of Drift Wave Turbulence and Magnetic Islands
Izzo V. UCSD Monday, May 2 13:30-15:30 Salons ABC Poster 1P8 Runaway Electron Confinement During Rapid Shutdown of Diverted DIII-D Discharges
Jardin S.C. PPPL Monday, May 2 13:30-15:30 Salons ABC Poster 1P24 Initial 3D Nonlinear Toroidal Results from the M3D-C Code
Jenkins T.G. Tech-X Corp. Monday, May 2 13:30-15:30 Salons ABC Poster 1P19 Coupled IPS/NIMROD/GENRAY Simulations of ECCD-Induced Tearing Mode Stabilization
Ji J.Y. Utah State U Monday, May 2 13:30-15:30 Salons ABC Poster 1P18 Closure and Transport Theory for High-Collisionality Electron-Ion Plasmas and its Implementation in NIMROD
Kagan G. LANL Monday, May 2 16:00-18:00 Salons ABC Poster 2P22 Improving Performance of a Plasma Liner Driven Magneto-Inertial Fusion Device with a Special Liner Shaping
Kanekar A. U Maryland Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P20 Critical Aspects of an Implicit Fully Spectral Gyrokinetic Algorithm
Kim C. U Washington Monday, May 2 13:30-15:30 Salons ABC Poster 1P23 Analysis of Hybrid Kinetic-MHD Simulation
Kim J.-H. U Wisconsin Monday, May 2 16:00-18:00 Salons ABC Poster 2P29 Identification of Frequencies in Three-Wave Coupling with Complex Frequencies
King J.R. U Wisconsin Monday, May 2 16:00-18:00 Salons ABC Poster 2P30 First-Order Finite-Larmor-Radius Effects on Magnetic Tearing in Pinch Configurations
Kolesnikov R.A. LLNL Monday, May 2 13:30-15:30 Salons ABC Poster 1P9 Recent TEQ Applications: Effects of Sudden Coil Current Drop on ITER Equilibria: Impementation of Equilibria with Toroidal Rotation
Koniges A. LBL Monday, May 2 16:00-18:00 Salons ABC Poster 2P38 The CERF Center: Co-design for Exascale Research in Fusion
Kotschenreuther M. U Texas Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P41 Fission-Fusion Hybrids
Krommes J. PPPL Wednesday, May 4 08:30-09:30 204 Review 3R1 The History and Present Status of Gyrokinetic Theory
Kruger S. Tech-X Corp. Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P13 Current and Future Computation Studies of Tokamak Transport Using the FACETS Code
Landreman M. MIT Tuesday, May 3 11:30-12:00 204 Oral 204 Neoclassical Flow, Current, and Electric Field in a Quasi-Isodynamic Stellarator
Lee W.W. PPPL Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P17 On Darwin Gyrokinetics
Li B. MIT Monday, May 2 16:00-18:00 Salons ABC Poster 2P41 Gyrokinetic Linearized Full Fokker-Planck Operator
Lilley M.K. Chalmers U, Sweden Monday, May 2 16:00-18:00 Salons ABC Poster 2P6 Drag Induced Energetic Particle Modes
Lin Z. UC Irvine Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P26 Gyrokinetic Particle Simulation of Ideal and Kinetic Ballooning Modes
LoDestro L.L. LLNL Monday, May 2 13:30-15:30 Salons ABC Poster 1P10 Simulation of Controlled Scenarios and Vertical-Displacement Events in ITER
Lowrie W. U Washington Monday, May 2 16:00-18:00 Salons ABC Poster 2P24 Multi-Block Development and Application to a Shear Flow Z-Pinch Kink Mode Stabilization
Manickam J. PPPL Monday, May 2 13:30-15:30 Salons ABC Poster 1P11 Kink Dynamics and Halo Currents During VDEs
Marklund M. Umea U, Sweden Monday, May 2 16:00-18:00 Salons ABC Poster 2P35 Gauge-Free Hamiltonian Structure of the Spin Maxwell-Vlasov Equations
Menard J. PPPL Monday, May 2 13:30-15:30 Salons ABC Poster 1P37 The Role of Kinetic Dissipation in Modifying RWM Eigenfunctions
Meyerson D. U Texas Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P11 Modeling Suppression of Drift-Wave Turbulence in the Texas Helimak
Mirnov V.V. U Wisconsin Monday, May 2 16:00-18:00 Salons ABC Poster 2P28 Collisional Transport Calculations for Impurities in RFP Plasmas
Mishchenko A. Garching, Germany Monday, May 2 16:00-18:00 Salons ABC Poster 2P7 Global Particle-In-Cell Simulations of Alfvenic Modes - the Cancellation Problem Resolved
Montgomery A.L. U Wisconsin Monday, May 2 13:30-15:30 Salons ABC Poster 1P38 The Effects of Applied 3D Magnetic Fields and Resistive Wall Boundary Conditions on MHD Simulations of Cylindrical Plasmas
Morrison P.J. U Texas Monday, May 2 16:00-18:00 Salons ABC Poster 2P33 Deriving Magnetofluid Models from Action Principles
Nebel R.A. Tibbar Technologies Monday, May 2 13:30-15:30 Salons ABC Poster 1P33 Electrostatic Mode Locking and Mode Suppresion in RFPs and Tokamaks
Orbach R. U Texas Monday, May 2 08:35-09:35 204 Review 1R1 Anatomy of a (Partial) Meltdown: Fukushima Daichi Nuclear Power Plants
Para F.I. U Oxford, UK Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P29 Model for Intrinsic Rotation for Small Poloidal Magnetic Field
Pataki A. NYU Monday, May 2 13:30-15:30 Salons ABC Poster 1P28 High Order Methods for Computing Axisymmetric Plasma Equilibria
Perez J.C. U New Hampshire Monday, May 2 16:00-18:00 Salons ABC Poster 2P26 Numerical Modeling of Nonlinear Interaction of Counter-Propagating Shear Alfven Waves in the Large Plasma Device
Plunk G.G. U Maryland Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P15 Generalized Instability and Energy Transfer in Turbulence with Zonal Flows
Porazik P. UC Irvine Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P27 Gyrokinetic Simulation of Magnetic Compressional Mode
Pusztai I. Chalmers U, Sweden Wednesday, May 4 09:30-10:00 204 Oral 3O1 Isotope Mass and Charge Effects in Tokamak Plasmas
Putvinski S. ITER Monday, May 2 10:35-11:05 204 Oral 1O2 Disruption Mitigation in ITER
Ramos J.J. MIT Monday, May 2 13:30-15:30 Salons ABC Poster 1P32 Low-Collisionality Ion Model for Slow Macroscopic Dynamics in Magnetically Confined Plasmas
Rebusco P. MIT Monday, May 2 13:30-15:30 Salons ABC Poster 1P2 Tridimensional Plasma Spirals and High Frequency Quasi-Periodic Oscillations Around Black Holes
Richardson A.S. LANL Monday, May 2 13:30-15:30 Salons ABC Poster 1P16 Quasi-Separatrix Layers and Three-Dimensional Reconnection Diagnostics for Line-Tied Tearing Modes
Richardson A.S. LANL Monday, May 2 16:00-18:00 Salons ABC Poster 2P40 Variable Time-Step Symplectic Integrators for PIC Applications
Rorvig M.N. U Wisconsin Monday, May 2 16:00-18:00 Salons ABC Poster 2P19 Microinstability Suppression in Stellarators by Local 3D Equilibrium Shaping
Ryutov D.D. LLNL Wednesday, May 4 11:00-11:30 204 Oral 303 Using the Snowflake Geometry to Mitigate Pulsed Divertor Heat Loads During the ELM Events
Sauppe J.P. U Wisconsin Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P2 Convergence Properties of Spectral Elements on Thermal Transport in Chaotic Magnetic Fields
Scaffidi T. PPPL Monday, May 2 13:30-15:30 Salons ABC Poster 1P25 Resistive 2F Linear Stability Calculations with the M3D-C Code
Schlutt M. U Wisconsin Monday, May 2 16:00-18:00 Salons ABC Poster 2P20 Investigation of Equilibrium Plasma Beta Limits in 3D Magnetic Topologies
Sovinec C.R. U Wisconsin Monday, May 2 13:30-15:30 Salons ABC Poster 1P20 Interchange Convergence with Spectral-Element Extended MHD
Spong D.A. ORNL Monday, May 2 16:00-18:00 Salons ABC Poster 2P8 Energetic Particle Physics in 3D Configurations
Staebler G.M. GA Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P22 Finite Mach Number Effects on Gyro-Kinetic Stability and Transport
Strauss H.R. HRS Fusion Monday, May 2 13:30-15:30 Salons ABC Poster 1P12 Asymmetric Wall Force Produced by ITER Disruptions
Sugiyama L.E. MIT Monday, May 2 13:30-15:30 Salons ABC Poster 1P26 Linear and Nonlinear Instability of a Toroidal Plasma with Free Boundary and X-Points
Svidzinski V. FAR-TECH Inc. Monday, May 2 13:30-15:30 Salons ABC Poster 1P35 Analysis of Resistive Wall Modes in Rotating DIII-D Plasma
Tang X. LANL Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P35 Transport-Driven Sheath Instability in Magnetic Fusion Plasmas
Tarditi A.G. U Huston-Clear Lake Monday, May 2 16:00-18:00 Salons ABC Poster 2P23 Simulation of Plasma Toroid Generation and Sustainment in High-Pressure Plasma Flows through a Diverging Magnetic Field
Tassi E. Aix-Marseille U, France Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P4 Mode Signature and Stability for a Hamiltonian Model of Electron Temperature Gradient Turbulence
Vahala G. William & Mary Monday, May 2 16:00-18:00 Salons ABC Poster 2P36 Unitary Qubit Representation of 2D and 3D Quantum Turbulence (QT)
Waelbroeck F.L. U Texas Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P5 A Compressible Hamiltonian Electromagnetic Gyrofluid Model
Waltz R.E. GA Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P23 Gyrokinetic Simulations with External Magnetic Field Perturbations
Wan W. U Colorado Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P38 Gyrokinetic Particle Simulations of Edge Pedestal Turbulence
Wang G. U Texas Monday, May 2 16:00-18:00 Salons ABC Poster 2P11 Model for Spontaneous Frequency of an Alfven Wave in a Toroidal Plasma
Wang W.X. PPPL Wednesday, May 4 10:30-11:00 204 Oral 302 Gyrokinetic Turbulence Driven Plasma Flow and Origin of Empirical Scalings of Intrinsic Rotation in Tokamaks
Wang Z. UC Irvine Monday, May 2 16:00-18:00 Salons ABC Poster 2P9 Gyrokinetic Particle Simulation of Alfven Eigenmodes with Zonal Fields
White A.E. MIT Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P9 Design of Tokamak Experiments and Fluctuation Diagnostics with Nonlinear Gyrokinetic Codes
White R. PPPL Tuesday, May 3 09:30-10:00 204 Oral 2O1 Modification of Particle Distributions by MHD Instabilities
Wong H.V. U Texas Monday, May 2 16:00-18:00 Salons ABC Poster 2P12 Simulation of the Toroidal Geodesic-Acoustic Mode Destabilised by Energetic Particles
Wurm A. Western New England Coll. Monday, May 2 16:00-18:00 Salons ABC Poster 2P34 Hamiltonian and Lagrangian Structure of Some Gyroviscous Magnetofluid Models
Xia T. IPP, Hefei, China Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P16 Nonlinear Simulations of Peeling-Ballooning Modes with Flow Shear and RF Sources
Xiang N. U Colorado Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P40 Simulations of Parametic Decays of ICRF Waves Near Plasma Edge
Xiao Y. UC Irvine Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P24 Convective Motion in Collisionless Trapped Electron Mode Turbulence
Zakharov L.E. PPPL Monday, May 2 13:30-15:30 Salons ABC Poster 1P7 Understanding Disruptions in Tokamaks
Zhang B. William & Mary Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P14 Lattice Boltzmann Representation of Electrostatic Plasma Drift Waves
Zhang H.S. Perking U, China Monday, May 2 16:00-18:00 Salons ABC Poster 2P10 Nonlinear Frequency Chirping of beta-Induced Alfven Eigenmode
Zheng L.J. U Texas Wednesday, May 4 12:00-12:30 204 Oral 305 Investigation of Infernal Modes at Tokamak H-Mode Pedestal
Zhou T. MIT Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P8 Heavy Particle Modes: I-Regime and Magnetic Fluctuations
Zhu P. U Wisconsin Tuesday, May 3 16:00-18:00 Salons ABC Poster 3P39 Pedestal Energy Loss from Nonlinear Peeling-Ballooning Instability in Extended MHD Model
Zocco A. Culham, UK Monday, May 2 13:30-15:30 Salons ABC Poster 1P5 Electron Heating in Collisionless Magnetic Reconnection: A Nonlinear Gyrokinetic Theory