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{
  "sample_id": 397,
  "geometry_type": "flat",
  "geometry_parameters": {
    "type": "flat"
  },
  "rq_target": 0.004173782503966067,
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  "ra_actual": 0.0034099839875517024,
  "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": 0.0,
    "max_slope": 0.0,
    "height_range": 0.0,
    "mean_height": 0.0,
    "std_height": 0.0
  },
  "generation_timestamp": "2025-11-08T03:10:06.158233",
  "correlation_length": 0.012695475544548664,
  "hybrid_parameters": {
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    "w_perlin": 0.15,
    "w_fractal": 0.75,
    "perlin_octaves": 8,
    "perlin_persistence": 0.6708195091310127,
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    "fractal_hurst": 0.3553247909417937,
    "fractal_modes": 78
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}