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{
  "sample_id": 20,
  "geometry_type": "sphere",
  "geometry_parameters": {
    "type": "sphere",
    "radius": 0.4274864205936365,
    "segment_angle": 65.96379735407211
  },
  "rq_target": 0.00371217312537012,
  "rq_actual": 0.0037121731253701206,
  "ra_actual": 0.0029860831665122424,
  "severity": "high_corrosion",
  "is_anisotropic": true,
  "psd_method": "exponential",
  "manufacturing_process": "random",
  "method": "hybrid",
  "grid_resolution": [
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    116
  ],
  "physical_dimensions": [
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  ],
  "curvature_statistics": {
    "mean_slope": 0.0007175215827353774,
    "max_slope": 0.0012723944913386465,
    "height_range": 0.2533653062570392,
    "mean_height": 0.08847979637886864,
    "std_height": 0.07700454785675763
  },
  "generation_timestamp": "2025-11-08T02:23:28.481401",
  "correlation_length_x": 0.08887308411166209,
  "correlation_length_y": 0.014522855869308609,
  "orientation": 25.166280193180896,
  "anisotropy_ratio": 6.119532198861729,
  "hybrid_parameters": {
    "w_psd": 0.1,
    "w_perlin": 0.15,
    "w_fractal": 0.75,
    "perlin_octaves": 8,
    "perlin_persistence": 0.7005667978656325,
    "perlin_lacunarity": 2.5,
    "fractal_hurst": 0.46305898427363335,
    "fractal_modes": 80
  }
}