{"id":"W2148676654","doi":"10.1002/pen.20939","title":"Sharkskin and oscillating melt fracture: Why in slit and capillary dies and not in annular dies?","year":2007,"lang":"en","type":"article","venue":"Polymer Engineering and Science","topic":"Rheology and Fluid Dynamics Studies","field":"Chemical Engineering","cited_by":24,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of British Columbia","funders":"","keywords":"Materials science; Extrusion; Capillary action; Slip (aerodynamics); Composite material; Die (integrated circuit); Mechanics; Shear rate; Shear stress; Rheology; Thermodynamics; Physics; Nanotechnology","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.001097856,0.0002055375,0.000542123,0.001131297,0.0005417365,0.001238542,0.0006931515,0.001202447,0.001868612],"category_scores_gemma":[0.004346455,0.0002912351,0.0004927194,0.0007520216,0.001791259,0.002047226,0.0008869426,0.0006577326,0.0003269011],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0004539955,"about_ca_system_score_gemma":0.0003055487,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.0006696944,"about_ca_topic_score_gemma":0.001024368,"domain_scores_codex":[0.9991127,0.00008277185,0.00005238638,0.0002281493,0.000349292,0.0001746704],"domain_scores_gemma":[0.9968389,0.0009234175,0.001137599,0.0003170809,0.0005377342,0.0002452846],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"bench_or_experimental","study_design_gemma":"bench_or_experimental","study_design_scores_codex":[0.002953336,0.0003002793,0.3065842,0.001086337,0.0001926029,0.009035398,0.00305635,0.005361172,0.4358279,0.01468541,0.001546707,0.2193704],"study_design_scores_gemma":[0.0001265517,0.001737967,0.5969929,0.0003664086,0.0002106523,0.02606118,0.005064641,0.02070146,0.3211103,0.02076065,0.006663843,0.000203519],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9917009,0.00161429,0.004914547,0.0002557824,0.00002176525,0.00001359366,0.00003494355,0.00005896627,0.00138524],"genre_scores_gemma":[0.9975363,0.0003291394,0.001381639,0.00006137144,0.00001152852,0.000005841971,0.00002158,0.00001552706,0.0006370681],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.001868612,"threshold_uncertainty_score":0.006251097,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.005508536957008043,"score_gpt":0.2140195198767101,"score_spread":0.208510982919702,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}