human: Given a node-centered hypergraph: <hypergraph>, where nodes represent papers and hyperedges represent sets of papers co-cited by a source paper.

Details of the hypergraph:
Center node: "modeling duct flow for molecular communication"
  Abstract: Active transport such as fluid flow is sought in molecular communication to extend coverage, improve reliability, and mitigate interference. Flow models are often over-simplified, assuming one-dimensional diffusion with constant drift. However, diffusion and flow are usually encountered in three-dimensional bounded environments where the flow is highly non-uniform such as in blood vessels or microfluidic channels. For a qualitative understanding of the relevant physical effects inherent to these channels, based on the Peclet number and the transmitter-receiver distance, we study when simplified models of uniform flow and advection-only transport are applicable. For these two regimes, analytical expressions for the channel impulse response are derived and validated by particle-based simulation. Furthermore, as advection-only transport is typically overlooked and hence not analyzed in the molecular communication literature, we evaluate the symbol error rate for exemplary on-off keying as performance metric.

Connected through hyperedge HE-1 (induced by source paper "chemical reactions based microfluidic transmitter and receiver for molecular communication"):
  with members:
    - "on the capacity of diffusion based molecular timing channels"
    - "3d stochastic geometry model for large scale molecular communication systems"
    - "modeling and simulation of molecular communication systems with a reversible adsorption receiver"
    - "molecular mimo from theory to prototype"
    - "a comprehensive survey of recent advancements in molecular communication"
    - "molecular communication with a reversible adsorption receiver"
    - "improving receiver performance of diffusive molecular communication with enzymes"
    - "tabletop molecular communication text messages through chemical signals"

Connected through hyperedge HE-2 (induced by source paper "analytical derivation of the impulse response for the bounded 2 d diffusion channel"):
  with members:
    - "channel model of molecular communication via diffusion in a vessel like environment considering a partially covering receiver"
    - "impulse response of the molecular diffusion channel with a spherical absorbing receiver and a spherical reflective boundary"
    - "molecular signal modeling of a partially counting absorbing spherical receiver"
    - "channel impulse responses in diffusive molecular communication with spherical transmitters"
    - "a comprehensive survey of recent advancements in molecular communication"
    - "improving receiver performance of diffusive molecular communication with enzymes"
    - "nanoscale communication with brownian motion"

Connected through hyperedge HE-3 (induced by source paper "magnetic nanoparticle based molecular communication in microfluidic environments"):
  with members:
    - "experimental molecular communication testbed based on magnetic nanoparticles in duct flow"
    - "symbol synchronization for diffusion based molecular communications"
    - "molecular communication using magnetic nanoparticles"
    - "a comprehensive survey of recent advancements in molecular communication"
    - "improving receiver performance of diffusive molecular communication with enzymes"

Connected through hyperedge HE-4 (induced by source paper "a general analytical approximation to impulse response of 3 d microfluidic channels in molecular communication"):
  with members:
    - "channel model of molecular communication via diffusion in a vessel like environment considering a partially covering receiver"
    - "a comprehensive survey of recent advancements in molecular communication"
    - "isi mitigation techniques in molecular communication"
    - "establishing digital molecular communications in blood vessels"
    - "diffusion based nanonetworking a new modulation technique and performance analysis"

Connected through hyperedge HE-5 (induced by source paper "channel modeling for diffusive molecular communication a tutorial review"):
  with members:
    - "a survey of biological building blocks for synthetic molecular communication systems"
    - "stochastic channel modeling for diffusive mobile molecular communication systems"
    - "a novel experimental platform for in vessel multi chemical molecular communications"
    - "generalized solution for the demodulation of reaction shift keying signals in molecular communication networks"
    - "diffusive mobile molecular communications over time variant channels"
    - "symbol synchronization for diffusion based molecular communications"
    - "effective enzyme deployment for degradation of interference molecules in molecular communication"
    - "molecular communication using magnetic nanoparticles"

Connected through hyperedge HE-6 (induced by source paper "abnormality detection inside blood vessels with mobile nanomachines"):
  with members:
    - "on flow induced diffusive mobile molecular communication first hitting time and performance analysis"
    - "stochastic channel modeling for diffusive mobile molecular communication systems"
    - "advanced target detection via molecular communication"
    - "cooperative abnormality detection via diffusive molecular communications"
    - "diffusive mobile molecular communications over time variant channels"
    - "abnormality detection in correlated gaussian molecular nano networks design and analysis"
    - "channel estimation for diffusive molecular communications"
    - "joint channel parameter estimation via diffusive molecular communication"

Connected through hyperedge HE-7 (induced by source paper "diffusive molecular communication in biological cylindrical environment"):
  with members:
    - "a general analytical approximation to impulse response of 3 d microfluidic channels in molecular communication"
    - "channel model of molecular communication via diffusion in a vessel like environment considering a partially covering receiver"
    - "impulse response of the molecular diffusion channel with a spherical absorbing receiver and a spherical reflective boundary"
    - "modeling and simulation of molecular communication systems with a reversible adsorption receiver"
    - "a comprehensive survey of recent advancements in molecular communication"
    - "improving receiver performance of diffusive molecular communication with enzymes"
    - "establishing digital molecular communications in blood vessels"
    - "simulation of molecular signaling in blood vessels software design and application to atherogenesis"

Connected through hyperedge HE-8 (induced by source paper "impulse response of the molecular diffusion channel with a spherical absorbing receiver and a spherical reflective boundary"):
  with members:
    - "a novel a priori simulation algorithm for absorbing receivers in diffusion based molecular communication systems"
    - "channel model of molecular communication via diffusion in a vessel like environment considering a partially covering receiver"
    - "modeling and simulation of molecular communication systems with a reversible adsorption receiver"
    - "channel impulse responses in diffusive molecular communication with spherical transmitters"
    - "a comprehensive survey of recent advancements in molecular communication"
    - "improving receiver performance of diffusive molecular communication with enzymes"
    - "optimal receiver design for diffusive molecular communication with flow and additive noise"
    - "establishing digital molecular communications in blood vessels"

Question: Please tell me which class the center node belongs to. The 40 classes are: cs.NA(Numerical Analysis), cs.MM(Multimedia), cs.LO(Logic in Computer Science), cs.CY(Computers and Society), cs.CR(Cryptography and Security), cs.DC(Distributed, Parallel, and Cluster Computing), cs.HC(Human-Computer Interaction), cs.CE(Computational Engineering, Finance, and Science), cs.NI(Networking and Internet Architecture), cs.CC(Computational Complexity), cs.AI(Artificial Intelligence), cs.MA(Multiagent Systems), cs.GL(General Literature), cs.NE(Neural and Evolutionary Computing), cs.SC(Symbolic Computation), cs.AR(Hardware Architecture), cs.CV(Computer Vision and Pattern Recognition), cs.GR(Graphics), cs.ET(Emerging Technologies), cs.SY(Systems and Control), cs.CG(Computational Geometry), cs.OH(Other Computer Science), cs.PL(Programming Languages), cs.SE(Software Engineering), cs.LG(Machine Learning), cs.SD(Sound), cs.SI(Social and Information Networks), cs.RO(Robotics), cs.IT(Information Theory), cs.PF(Performance), cs.CL(Computation and Language), cs.IR(Information Retrieval), cs.MS(Mathematical Software), cs.FL(Formal Languages and Automata Theory), cs.DS(Data Structures and Algorithms), cs.OS(Operating Systems), cs.GT(Computer Science and Game Theory), cs.DB(Databases), cs.DL(Digital Libraries), cs.DM(Discrete Mathematics). Directly output the class name.

gpt: cs.ET(Emerging Technologies)