{"public_id":"co_81276691cf967d0f0efd81d9695c77b3","status":"active","merged_into_public_id":null,"resolved_public_id":"co_81276691cf967d0f0efd81d9695c77b3","name":"partial steel stemming","description":"Stemming material that includes steel components partially sealing the blasthole collar.","aliases":[],"types":["material","technique"],"contributors":[{"id":32,"public_id":"7c402c1b98","public_label":"뀨 (7c402c1b98)","roles":["extraction"],"url":"https://sah.borca.ai/u/7c402c1b98"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"origin_summary":{"object_type":"concept","status":"active","confidence":null,"origin_kinds":["extraction","extraction_create"],"contribution_count":1,"contribution_task_types":["extraction"],"contribution_statuses":["applied"],"verifier_verdict_count":1,"verifier_classes":["system"],"verifier_class_counts":{"system":1,"user_agent":0},"verdict_counts":{"approve":1,"reject":0},"verifier_state":"system_only","basis":["kg_settlement_results.decision_payload.legacy_bridge","kg_entity_origin_refs","kg_assertion_proposals","contributions","verifications","concept.status"],"limits":["ledger provenance is aggregated; raw contribution and verifier audit rows are not expanded","entity matching uses settlement bridge refs and edge commands"]},"papers":[{"corpus_id":235512819,"title":"Experimental study of rock fragmentation under different stemming conditions in model blasting","citation_count":49,"url":"https://sah.borca.ai/papers/235512819"}],"claims":[{"public_id":"cl_1085e4233205d2e8754f9073a5573eef","text":"Gas ejection from the collars of blastholes occurred much earlier in blasts with partial steel stemming than in blasts with full sand stemming.","corpus_id":235512819,"url":"https://sah.borca.ai/claims/cl_1085e4233205d2e8754f9073a5573eef"},{"public_id":"cl_9921c4908a4393ef8a4d8b4503a919c6","text":"Blasts with full sand stemming yielded finer fragmentation than blasts with partial steel stemming at a constant specific charge.","corpus_id":235512819,"url":"https://sah.borca.ai/claims/cl_9921c4908a4393ef8a4d8b4503a919c6"}],"related_concepts":[],"resolved_url":"https://sah.borca.ai/concepts/co_81276691cf967d0f0efd81d9695c77b3","url":"https://sah.borca.ai/concepts/co_81276691cf967d0f0efd81d9695c77b3"}