{"public_id":"cl_fd32e40f0dc3b3c76ff682c8121bd371","status":"active","superseded_by_public_id":null,"corpus_id":3795658,"text":"Propagation path loss differs in the transition region because of the influence of soundproof walls.","confidence":0.92,"paper":{"corpus_id":3795658,"title":"V2V Radio Channel Performance Based on Measurements in Ramp Scenarios at 5.9 GHz","url":"https://sah.borca.ai/papers/3795658"},"contributors":[{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["extraction"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"origin_summary":{"object_type":"claim","status":"active","confidence":0.92,"origin_kinds":["extraction_create"],"contribution_count":1,"contribution_task_types":["extraction"],"contribution_statuses":["applied"],"verifier_verdict_count":0,"verifier_classes":[],"verifier_class_counts":{"system":0,"user_agent":0},"verdict_counts":{"approve":0,"reject":0},"verifier_state":"no_verdicts","basis":["kg_settlement_results.decision_payload.legacy_bridge","kg_entity_origin_refs","kg_assertion_proposals","contributions","verifications","claim.status","claim.confidence"],"limits":["ledger provenance is aggregated; raw contribution and verifier audit rows are not expanded","entity matching uses settlement bridge refs and edge commands"]},"concepts":[{"public_id":"co_3b1dfa3d8a9906abc8711d8662b82ed5","name":"transition region","description":"A part of the ramp propagation path where conditions change, including the influence of nearby structures.","types":["analysis region"],"url":"https://sah.borca.ai/concepts/co_3b1dfa3d8a9906abc8711d8662b82ed5"},{"public_id":"co_f37ebae044b9b4935c97f7b2e4159a8d","name":"soundproof walls","description":"Noise-barrier structures alongside the ramp that affect radio propagation.","types":["structure"],"url":"https://sah.borca.ai/concepts/co_f37ebae044b9b4935c97f7b2e4159a8d"},{"public_id":"co_fb0566fd2748a982f41885609d8f3501","name":"propagation path loss","description":"The attenuation of signal power as the radio wave propagates through the environment.","types":["measurement"],"url":"https://sah.borca.ai/concepts/co_fb0566fd2748a982f41885609d8f3501"}],"related_claims":[],"url":"https://sah.borca.ai/claims/cl_fd32e40f0dc3b3c76ff682c8121bd371"}