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Record W3118784466 · doi:10.33751/teknik.v21i1.2639

STUDI POTENSI DAN KUALITAS BATUBARA DI WILAYAH TENGGARONG SEBERANG

2020· article· id· W3118784466 on OpenAlexaff
IIT ADHITIA Dan MUHAMMAD AGUS KARMADI

Bibliographic record

VenueJurnal Teknik | Majalah Ilmiah Fakultas Teknik UNPAK · 2020
Typearticle
Languageid
FieldEngineering
TopicMining Techniques and Economics
Canadian institutionsWiLAN (Canada)
Fundersnot available
KeywordsPhysicsForestryEnvironmental scienceGeography

Abstract

fetched live from OpenAlex

Daerah penelitian berada di wilayah Tenggarong Seberang termasuk bagian dari Cekungan Kutai diindikasikan mengandung formasi pembawa batubara yang diwakili oleh Formasi Pulaubalang dan Formasi Balikpapan. Penelitian bertujuan untuk mengetahui potensi secara ekonomis dari keterdapatan endapan batubara, baik mengenai estimasi besarnya sumberdaya (resource estimation) maupun kualitas batubara yang merupakan sifat fisika dan kimia dari batubara yang mempengaruhi potensi kegunaannya. Estimasi sumberdaya batubara dilakukan dengan metode USGS-Circular 891, sehingga dapat diketahui tonasenya. Selain itu dilakukan analisa kimia dengan menggunakan beberapa sampel batubara yang diambil dari singkapan batubara di permukaan dengan menggunakan klasifikasi menurut ASTM (American Society for Testing and Materials) untuk menentukan peringkat batubara. Disamping itu penting untuk mengetahui berapa nilai Fuel Ratio dari batubara tersebut untuk penggunaannya di beberapa industri. Berdasarkan perhitungan estimasi sumber daya batubara dengan metode USGS- Circular 891 untuk sampai kedalaman 25 meter yaitu 1,126,141 ton, begitu juga untuk kedalaman 50 meter yaitu 1,601,370 ton. Hasil analisa laboratorium menunjukkan bahwa Inherent Moisture (IM) bervariasi antara 5.04% adb sampai 10.78% adb, kandungan abu (Ash) berkisar antara 0.86% adb sampai 14.44% adb, kandungan sulfur (TS) berkisar antara 1.18% adb sampai 2.98% adb, dan nilai kalori (CV) bervariasi antara 5,774 Kcal/Kg adb sampai 7,105 Kcal/Kg adb. Berdasarkan nilai kalori maka batubara di daerah penelitian termasuk dalam peringkat Sub-Bittuminus B – High Volatile Bittuminus C. Berdasarkan nilai Fuel Ratio, batubara daerah penelitian termasuk lignit – high volatile bitumen. Pemanfaatan batubara dapat disesuaikan penggunaannya untuk beberapa industri seperti pembangkit listrik, industri semen, pengolahan logam, dan lainnya, berdasarkan nilai Fuel Ratio dan standar klasifikasi peringkat batubara menurut ASTM. Eksplorasi lanjutan perlu dilakukan hingga studi kelayakan untuk mendapatkan cadangan terbukti. Kata Kunci : cekungan kutai, USGS-Circular 891, ASTM, fuel ratio

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.007
Threshold uncertainty score0.013

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0010.000
Scholarly communication0.0010.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0030.001

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.024
GPT teacher head0.234
Teacher spread0.210 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2020
Admission routes1
Has abstractyes

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Same venueJurnal Teknik | Majalah Ilmiah Fakultas Teknik UNPAKSame topicMining Techniques and EconomicsFrench-language works237,207