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{
  "sample_id": 643,
  "geometry_type": "sphere",
  "geometry_parameters": {
    "type": "sphere",
    "radius": 0.697983988182134,
    "segment_angle": 40.83305300650584
  },
  "rq_target": 0.0021128904959487145,
  "rq_actual": 0.0021128904959487145,
  "ra_actual": 0.0016926491297966342,
  "severity": "high_corrosion",
  "is_anisotropic": false,
  "psd_method": "exponential",
  "manufacturing_process": "random",
  "method": "hybrid",
  "grid_resolution": [
    283,
    117
  ],
  "physical_dimensions": [
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    0.06936929466504785
  ],
  "curvature_statistics": {
    "mean_slope": 0.000602309918738331,
    "max_slope": 0.0011516818676229335,
    "height_range": 0.16987675160663285,
    "mean_height": 0.05769887912395495,
    "std_height": 0.051145692386337226
  },
  "generation_timestamp": "2025-11-08T03:40:51.653140",
  "correlation_length": 0.012018545874058578,
  "hybrid_parameters": {
    "w_psd": 0.1,
    "w_perlin": 0.15,
    "w_fractal": 0.75,
    "perlin_octaves": 6,
    "perlin_persistence": 0.7567251562557781,
    "perlin_lacunarity": 2.5,
    "fractal_hurst": 0.3968493929622726,
    "fractal_modes": 84
  }
}