{"id":"W624213335","doi":"10.2172/1068610","title":"Blending Hydrogen into Natural Gas Pipeline Networks: A Review of Key Issues","year":2013,"lang":"en","type":"review","venue":"","topic":"Hybrid Renewable Energy Systems","field":"Energy","cited_by":360,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"","keywords":"Natural gas; Pipeline (software); Pipeline transport; Natural (archaeology); Key (lock); Hydrogen; Environmental science; Petroleum engineering; Engineering; Computer science; Geology; Waste management; Chemistry; Environmental engineering; Computer security; Mechanical engineering; Paleontology","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":[0.001027301,0.001014841,0.001584761,0.002668757,0.0003765205,0.001188892,0.001060457,0.001269865,0.003358599],"category_scores_gemma":[0.001014024,0.0006797959,0.0008090814,0.004021896,0.0005564163,0.00253101,0.0007477151,0.001337057,0.001421569],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.0007624108,"about_ca_system_score_gemma":0.001316107,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.002244635,"about_ca_topic_score_gemma":0.003722856,"domain_scores_codex":[0.9996865,0.00004408045,0.00004471633,0.00006814441,0.0001261753,0.00003043273],"domain_scores_gemma":[0.9994169,0.0003201167,0.00008908524,0.00001637703,0.0001337861,0.00002371271],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"design_other","study_design_gemma":"not_applicable","study_design_scores_codex":[0.00006127595,0.0001206483,0.0002541654,0.05108937,0.000166535,0.0001852855,0.0001064561,0.001510053,0.003014476,0.01338213,0.01827152,0.911838],"study_design_scores_gemma":[0.00001208129,0.0001435905,0.0005880615,0.006471012,0.0001517082,0.0005609945,0.0001163091,0.0002613021,0.001448183,0.002652923,0.9875609,0.00003286491],"study_design_candidate":"not_applicable","study_design_consensus":null,"genre_codex":"review","genre_gemma":"review","genre_scores_codex":[0.0001385204,0.9986362,0.0001501773,0.0001116736,0.00007054495,0.000005882152,0.00001266714,0.000003234405,0.0008711288],"genre_scores_gemma":[0.0007431319,0.9986736,0.0001686626,0.00005632972,0.0000413461,0.000005233487,0.00001540768,0.000001157621,0.000295226],"genre_candidate":"review","genre_consensus":"review","teacher_disagreement_score":0.003358599,"threshold_uncertainty_score":0.01123565,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.02627882482607489,"score_gpt":0.3126873823491825,"score_spread":0.2864085575231076,"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."}}