{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:X5ZYDHERLET3PDV3TJBN5VMM5F","short_pith_number":"pith:X5ZYDHER","schema_version":"1.0","canonical_sha256":"bf73819c915927b78ebb9a42ded58ce940c0a879f15c4bf16ed89c61923b6153","source":{"kind":"arxiv","id":"1811.02159","version":1},"attestation_state":"computed","paper":{"title":"Improving mixing characteristics with a pitched tip in kneading elements in twin-screw extrusion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"Hideki Tomiyama, Hiroki Takemitsu, Koichi Kimura, Takahide Takeuchi, Toshihisa Kajiwara, Yasuya Nakayama","submitted_at":"2018-11-06T04:44:48Z","abstract_excerpt":"In twin-screw extrusion, the geometry of a mixing element mainly determines the basic flow pattern, which eventually affects the mixing ability as well as the dispersive ability of the mixing element. The effects of geometrical modification, with both forward and backward pitched tips, of a conventional forwarding kneading disks element (FKD) in the pitched-tip kneading disks element on the flow pattern and mixing characteristics are discussed. Numerical simulations of fully-filled, non-isothermal polymer melt flow in the melt-mixing zone were performed, and the flow pattern structure and the "},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1811.02159","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.flu-dyn","submitted_at":"2018-11-06T04:44:48Z","cross_cats_sorted":[],"title_canon_sha256":"948dbcb05034ecf097f36d3a4afca62206479569167e91f8ff927008b5a5fb1e","abstract_canon_sha256":"ea02822520fc5085de36e161a883c919ad39534f2349168f24199a2f60138a6a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:01:24.939479Z","signature_b64":"pYL4HZJ+5v8UFgsI8S/KwH/neKXCuMjzx1TbKm0qvf7UArpL/da6/704W9OoCIyLGlPVBtYZI8m+os4hpAnmAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bf73819c915927b78ebb9a42ded58ce940c0a879f15c4bf16ed89c61923b6153","last_reissued_at":"2026-05-18T00:01:24.939111Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:01:24.939111Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Improving mixing characteristics with a pitched tip in kneading elements in twin-screw extrusion","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.flu-dyn","authors_text":"Hideki Tomiyama, Hiroki Takemitsu, Koichi Kimura, Takahide Takeuchi, Toshihisa Kajiwara, Yasuya Nakayama","submitted_at":"2018-11-06T04:44:48Z","abstract_excerpt":"In twin-screw extrusion, the geometry of a mixing element mainly determines the basic flow pattern, which eventually affects the mixing ability as well as the dispersive ability of the mixing element. The effects of geometrical modification, with both forward and backward pitched tips, of a conventional forwarding kneading disks element (FKD) in the pitched-tip kneading disks element on the flow pattern and mixing characteristics are discussed. Numerical simulations of fully-filled, non-isothermal polymer melt flow in the melt-mixing zone were performed, and the flow pattern structure and the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.02159","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1811.02159","created_at":"2026-05-18T00:01:24.939166+00:00"},{"alias_kind":"arxiv_version","alias_value":"1811.02159v1","created_at":"2026-05-18T00:01:24.939166+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.02159","created_at":"2026-05-18T00:01:24.939166+00:00"},{"alias_kind":"pith_short_12","alias_value":"X5ZYDHERLET3","created_at":"2026-05-18T12:33:01.666342+00:00"},{"alias_kind":"pith_short_16","alias_value":"X5ZYDHERLET3PDV3","created_at":"2026-05-18T12:33:01.666342+00:00"},{"alias_kind":"pith_short_8","alias_value":"X5ZYDHER","created_at":"2026-05-18T12:33:01.666342+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/X5ZYDHERLET3PDV3TJBN5VMM5F","json":"https://pith.science/pith/X5ZYDHERLET3PDV3TJBN5VMM5F.json","graph_json":"https://pith.science/api/pith-number/X5ZYDHERLET3PDV3TJBN5VMM5F/graph.json","events_json":"https://pith.science/api/pith-number/X5ZYDHERLET3PDV3TJBN5VMM5F/events.json","paper":"https://pith.science/paper/X5ZYDHER"},"agent_actions":{"view_html":"https://pith.science/pith/X5ZYDHERLET3PDV3TJBN5VMM5F","download_json":"https://pith.science/pith/X5ZYDHERLET3PDV3TJBN5VMM5F.json","view_paper":"https://pith.science/paper/X5ZYDHER","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1811.02159&json=true","fetch_graph":"https://pith.science/api/pith-number/X5ZYDHERLET3PDV3TJBN5VMM5F/graph.json","fetch_events":"https://pith.science/api/pith-number/X5ZYDHERLET3PDV3TJBN5VMM5F/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/X5ZYDHERLET3PDV3TJBN5VMM5F/action/timestamp_anchor","attest_storage":"https://pith.science/pith/X5ZYDHERLET3PDV3TJBN5VMM5F/action/storage_attestation","attest_author":"https://pith.science/pith/X5ZYDHERLET3PDV3TJBN5VMM5F/action/author_attestation","sign_citation":"https://pith.science/pith/X5ZYDHERLET3PDV3TJBN5VMM5F/action/citation_signature","submit_replication":"https://pith.science/pith/X5ZYDHERLET3PDV3TJBN5VMM5F/action/replication_record"}},"created_at":"2026-05-18T00:01:24.939166+00:00","updated_at":"2026-05-18T00:01:24.939166+00:00"}