{"id":"W2300072496","doi":"","title":"A modified air pycnometer for compost air volume and density determination","year":2003,"lang":"en","type":"article","venue":"","topic":"Composting and Vermicomposting Techniques","field":"Agricultural and Biological Sciences","cited_by":57,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Compost; Gas pycnometer; Bulk density; Volume (thermodynamics); Particle density; Compressed air; Woodchips; Waste management; Materials science; Composite material; Environmental science; Mechanical engineering; Engineering; Soil science; Soil water; Physics; Thermodynamics; Porosity","routes":{"ca_aff":false,"ca_fund":false,"ca_venue":false,"about_ca":true,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.003140611,0.001396093,0.001430415,0.006004136,0.001182416,0.0009909671,0.002676746,0.001283522,0.0190973],"category_scores_gemma":[0.007113301,0.001071978,0.0006324436,0.003847616,0.0007060098,0.002025026,0.001789157,0.001929915,0.005129033],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0009071421,"about_ca_system_score_gemma":0.001505166,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001717359,"about_ca_topic_score_gemma":0.005806682,"domain_scores_codex":[0.9920577,0.001005016,0.0007291707,0.001482399,0.004469004,0.000256655],"domain_scores_gemma":[0.9925678,0.002776205,0.0006167102,0.0009783434,0.002720634,0.0003403309],"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":[0.0009194778,0.0004328516,0.01227688,0.001543671,0.0001494639,0.0003189381,0.0004235832,0.002002254,0.6074098,0.004544337,0.02866144,0.3413173],"study_design_scores_gemma":[0.0003541327,0.00148934,0.04615748,0.0004326446,0.0004817178,0.00464038,0.0003460587,0.112835,0.6027291,0.003712022,0.2262783,0.0005438521],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"methods","genre_gemma":"empirical","genre_scores_codex":[0.04639329,0.002226054,0.9217693,0.0002672785,0.000974322,0.001770754,0.008006518,0.008353464,0.01023896],"genre_scores_gemma":[0.06665677,0.001865927,0.9009129,0.0004401546,0.0002320009,0.003868526,0.004617442,0.0005971508,0.02080916],"genre_candidate":"empirical","genre_consensus":null,"teacher_disagreement_score":0.0190973,"threshold_uncertainty_score":0.06388682,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02938414007090399,"score_gpt":0.2387706437664576,"score_spread":0.2093865036955536,"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."}}