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{
  "sample_id": 403,
  "geometry_type": "nurbs",
  "geometry_parameters": {
    "type": "nurbs",
    "n_control_x": "5",
    "n_control_y": "3",
    "max_height": 0.15,
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  },
  "rq_target": 0.0012270417698618048,
  "rq_actual": 0.0012270417698618048,
  "ra_actual": 0.0010155329910174862,
  "severity": "high_corrosion",
  "is_anisotropic": true,
  "psd_method": "exponential",
  "manufacturing_process": "random",
  "method": "hybrid",
  "grid_resolution": [
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    152
  ],
  "physical_dimensions": [
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  ],
  "curvature_statistics": {
    "mean_slope": 0.0011161496084627128,
    "max_slope": 0.002449944198689917,
    "height_range": 0.2095302965599421,
    "mean_height": -0.03801672651062747,
    "std_height": 0.05704853464473905
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  "generation_timestamp": "2025-11-08T03:13:15.997916",
  "correlation_length_x": 0.08857992464691236,
  "correlation_length_y": 0.005709835066840802,
  "orientation": 74.5608730586262,
  "anisotropy_ratio": 15.513569763394726,
  "hybrid_parameters": {
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    "w_perlin": 0.15,
    "w_fractal": 0.75,
    "perlin_octaves": 6,
    "perlin_persistence": 0.8215524855047934,
    "perlin_lacunarity": 2.5,
    "fractal_hurst": 0.44698010632848295,
    "fractal_modes": 94
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}