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{
  "sample_id": 621,
  "geometry_type": "sphere",
  "geometry_parameters": {
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    "radius": 0.9090370607705137,
    "segment_angle": 101.48562514829608
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  "rq_actual": 0.0044770995576658805,
  "ra_actual": 0.0037331518089711853,
  "severity": "high_corrosion",
  "is_anisotropic": true,
  "psd_method": "exponential",
  "manufacturing_process": "random",
  "method": "hybrid",
  "grid_resolution": [
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    190
  ],
  "physical_dimensions": [
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  ],
  "curvature_statistics": {
    "mean_slope": 0.003051014092783088,
    "max_slope": 0.004510166972961915,
    "height_range": 1.090046407757537,
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  "generation_timestamp": "2025-11-08T03:37:47.359810",
  "correlation_length_x": 0.0769568488758438,
  "correlation_length_y": 0.007292757272199913,
  "orientation": 1.174914636688964,
  "anisotropy_ratio": 10.552503806647222,
  "hybrid_parameters": {
    "w_psd": 0.1,
    "w_perlin": 0.15,
    "w_fractal": 0.75,
    "perlin_octaves": 6,
    "perlin_persistence": 0.7288724018011101,
    "perlin_lacunarity": 2.5,
    "fractal_hurst": 0.3028631343502964,
    "fractal_modes": 83
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}