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{
  "sample_id": 491,
  "geometry_type": "sphere",
  "geometry_parameters": {
    "type": "sphere",
    "radius": 0.9027273023215114,
    "segment_angle": 39.460510566593896
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  "rq_target": 0.0048240595826032845,
  "rq_actual": 0.0048240595826032845,
  "ra_actual": 0.004047520539402025,
  "severity": "high_corrosion",
  "is_anisotropic": false,
  "psd_method": "exponential",
  "manufacturing_process": "random",
  "method": "hybrid",
  "grid_resolution": [
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  ],
  "physical_dimensions": [
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  ],
  "curvature_statistics": {
    "mean_slope": 0.0005344001550575252,
    "max_slope": 0.0010252049622150872,
    "height_range": 0.20576513517498377,
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  "generation_timestamp": "2025-11-08T03:22:26.281398",
  "correlation_length": 0.00789052784469847,
  "hybrid_parameters": {
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    "w_perlin": 0.15,
    "w_fractal": 0.75,
    "perlin_octaves": 8,
    "perlin_persistence": 0.7177810664272152,
    "perlin_lacunarity": 2.5,
    "fractal_hurst": 0.35163851838131344,
    "fractal_modes": 96
  }
}