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{
  "sample_id": 681,
  "geometry_type": "flat",
  "geometry_parameters": {
    "type": "flat"
  },
  "rq_target": 0.004080549084762233,
  "rq_actual": 0.004080549084762233,
  "ra_actual": 0.0033391887840947872,
  "severity": "high_corrosion",
  "is_anisotropic": false,
  "psd_method": "exponential",
  "manufacturing_process": "end_of_life_corrosion",
  "method": "hybrid",
  "grid_resolution": [
    313,
    109
  ],
  "physical_dimensions": [
    0.18456129964461274,
    0.07681540781323866
  ],
  "curvature_statistics": {
    "mean_slope": 0.0,
    "max_slope": 0.0,
    "height_range": 0.0,
    "mean_height": 0.0,
    "std_height": 0.0
  },
  "generation_timestamp": "2025-11-08T03:46:47.632388",
  "correlation_length": 0.05971589761190974,
  "hybrid_parameters": {
    "w_psd": 0.1,
    "w_perlin": 0.15,
    "w_fractal": 0.75,
    "perlin_octaves": 6,
    "perlin_persistence": 0.8228196002097622,
    "perlin_lacunarity": 2.5,
    "fractal_hurst": 0.4098688725293072,
    "fractal_modes": 68
  }
}