{"id":"W4413148508","doi":"10.1016/j.cemconres.2025.108011","title":"Fiber alignment mechanism in 3D-printed ultra-high performance concrete based on fluid dynamics theory","year":2025,"lang":"en","type":"article","venue":"Cement and Concrete Research","topic":"Innovations in Concrete and Construction Materials","field":"Engineering","cited_by":10,"is_retracted":false,"has_abstract":false,"ca_institutions":"University of British Columbia","funders":"National Key Research and Development Program of China; National Natural Science Foundation of China","keywords":"Mechanism (biology); Fiber; 3d printed; Materials science; Fiber-reinforced concrete; Composite material; Structural engineering; Computer science; Engineering; Physics; Biomedical engineering","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":"codex-gemma-dda1882f352a","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.001613149,0.0001884568,0.000228334,0.0005136029,0.000179758,0.0001018951,0.0001997805,0.0001279422,0.0007219654],"category_scores_gemma":[0.00005190674,0.0001881368,0.00002564766,0.0005413169,0.0001507389,0.00008941306,0.00006063695,0.0003200766,0.00005283134],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0002923954,"about_ca_system_score_gemma":0.00008179415,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.00001830094,"about_ca_topic_score_gemma":0.000001321023,"domain_scores_codex":[0.9983352,0.0001894642,0.0003711737,0.0002924518,0.0003601316,0.0004515487],"domain_scores_gemma":[0.9991732,0.0002644464,0.0000235065,0.0003404344,0.0001490025,0.00004943231],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"theoretical_or_conceptual","study_design_gemma":"simulation_or_modeling","study_design_scores_codex":[0.0006421697,0.00000487746,0.0008802583,0.0007253059,0.0002202158,0.0000237716,0.0002424732,0.002421541,0.2123485,0.7141976,0.001005832,0.06728746],"study_design_scores_gemma":[0.003280913,0.0003930103,0.0006485075,0.0007009118,0.00003114071,0.00000395118,0.0008382861,0.4909011,0.4895527,0.004208748,0.008798551,0.0006421702],"study_design_candidate":"theoretical_or_conceptual","study_design_consensus":null,"genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.9590021,0.00007309519,0.001873094,0.0002095202,0.0004372963,0.0005390602,0.0000273238,0.0001038983,0.03773462],"genre_scores_gemma":[0.9974059,0.0002354641,0.0004332775,0.0001763689,0.00004598346,0.0001838994,0.00005024005,0.00002193546,0.001446878],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.7099888,"threshold_uncertainty_score":0.7905015,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.0168769025066496,"score_gpt":0.2751306420489845,"score_spread":0.2582537395423349,"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."}}