{"id":"W1947966848","doi":"","title":"Focusing of acoustic waves by flat lenses made from negatively refracting two-dimensional phononic crystals","year":2008,"lang":"en","type":"preprint","venue":"HAL (Le Centre pour la Communication Scientifique Directe)","topic":"Acoustic Wave Phenomena Research","field":"Engineering","cited_by":10,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Manitoba","funders":"","keywords":"Negative refraction; Optics; Lens (geology); Refraction; Superlens; Finite-difference time-domain method; Materials science; Ultrasonic sensor; Point source; Physics; Metamaterial; Acoustics","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":["metaepi_narrow"],"consensus_categories":[],"category_scores_codex":[0.001904039,0.0004982733,0.0006890639,0.0002643056,0.0003017314,0.000177262,0.001038895,0.0003115801,0.0002281117],"category_scores_gemma":[0.002104037,0.0005615955,0.0002082476,0.0003423736,0.0003762406,0.0002032021,0.001365376,0.001236235,0.00003203419],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0003844413,"about_ca_system_score_gemma":0.0003808683,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.001785296,"about_ca_topic_score_gemma":0.0001452498,"domain_scores_codex":[0.9950358,0.001987912,0.0008501509,0.0007547623,0.0007842026,0.0005871771],"domain_scores_gemma":[0.9917225,0.004549025,0.0004750108,0.001618426,0.001410488,0.0002245553],"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":[0.00002785329,0.0002321294,0.0001679962,0.0004190362,0.0003869285,0.00002412559,0.007689462,0.04969825,0.9272433,0.0001868878,0.003102315,0.01082175],"study_design_scores_gemma":[0.0009248508,9.5574e-7,0.0006351653,0.003024626,0.00009615742,0.00002267893,0.0003081937,0.3438133,0.6476532,0.002104219,0.0005781816,0.0008384635],"study_design_candidate":"bench_or_experimental","study_design_consensus":"bench_or_experimental","genre_codex":"empirical","genre_gemma":"empirical","genre_scores_codex":[0.8794621,0.004226253,0.1018841,0.0005637917,0.0002821785,0.0005037375,0.0005493113,0.0003804071,0.01214811],"genre_scores_gemma":[0.9454636,0.0006709049,0.05103207,0.00001802459,0.00005964587,0.00003824031,0.0006019297,0.0001302917,0.00198531],"genre_candidate":"empirical","genre_consensus":"empirical","teacher_disagreement_score":0.2941151,"threshold_uncertainty_score":0.9996836,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.01811662716639068,"score_gpt":0.2394384026648572,"score_spread":0.2213217754984665,"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."}}