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Menampilkan 1–10 dari 2624 artikel
Banana Peel-Derived Activated Carbon/MnO₂ Composites for Supercapacitor Electrode Applications
Herwanti, Katarina
; Saptono Nugrohadi
; Muhammad Taufiq Anwar
; Stanislaus Christo Petra Nugraha
; Dail Umamil Asri
; Noening Andrijati
Banana peel waste is an abundant agricultural by-product with high carbon content but remains largely underutilized. This study presents a preliminary investigation into the conversion of banana peel waste into activated carbon and its integration with manganese dioxide (MnO₂) to produce biomass-derived composite electrodes for supercapacitor applications. Activated carbon was prepared by carbonization followed by chemical activation using 30 wt% H₃PO₄, while MnO₂–carbon composites were synthesi...
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Enhanced Self-Esteem Classification: Leveraging Data Augmentation and Transformer-Based Sentence Embeddings
Ahmadiansah, Reza
; Mukti Ali
; Rasimin
; Achmad Maimun
; Kastolani
; Imam Subqi
; Embun Bening Di Moravia
; Semma, Andi Bahtiar
This study investigates automated self-esteem assessment from self-descriptive text using transformer-based sentence embeddings. Although prior research has explored text, behavioral, and multimodal signals, the combined effects of data augmentation, embedding choice, and classifier complexity in text-only self-esteem classification remain insufficiently understood.Accordingly, this study aims to systematically evaluate embedding–classifier combinations under both low-resource and augmented data...
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Loading-Dependent Physicochemical Characteristics of LiMn2O4 Composites with Plasma-Modified and Ammonia-Functionalized Rice Husk Carbon
Harianingsih, Harianingsih
; Deni Fajar Fitriyana
; Januar Parlaungan Siregar
; Agung Budiwirawan
; Ari Dwi Nur Indriawan
; Suryo Wiroyudho Wibowo
; Rizky Ilham Fadzillah
; Nabila Khoirunisa
This study investigates LiMn2O4 composites incorporated with nitrogen-functionalized rice husk-derived carbon as a sustainable secondary phase for cathode material development. Rice husk carbon was prepared through carbonization, acid-assisted activation, plasma treatment, and ammonia functionalization, then mechanically blended with LiMn2O4 at 2, 3, and 4 wt.% to obtain LMO-NC2, LMO-NC3, and LMO-NC4, respectively. FTIR analysis showed absorption bands at approximately 3390, 1625, 1400, 1008, 83...
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Efektifitas Upright Position dan Sim Position terhadap Lamanya Persalinan Kala I Fase Aktif pada Primigravida di Rumah Sakit Islam Sultan Hadlirin Jepara
Vol 17
, No 02
(2026)
Lamanya proses persalinan, khususnya kala I fase aktif, merupakan indikator penting kemajuan persalinan. Fase ini ditandai dengan pembukaan serviks yang cepat, kontraksi uterus kuat dan teratur, serta peningkatan nyeri. Persalinan kala I fase aktif yang berlangsung melebihi batas normal dapat meningkatkan risiko komplikasi bagi ibu dan janin, seperti kelelahan, dehidrasi, infeksi, dan distres janin akibat penurunan aliran darah uteroplasenta.Tujuan penelitian ini bertujuan untuk mengetahui efekt...
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Peran Kepala Sekolah Dalam Peningkatan Manajemen Pembelajaran Bagi Guru: Studi Kasus di SMP Islam Kluwan
Journal of Informatics Education
Vol 9
, No 1
(2026)
Penelitian tentang integrasi kelima peran kepemimpinan kepala sekolah secara simultan di sekolah swasta berbasis Islam yang mengimplementasikan Kurikulum Merdeka masih terbatas. Penelitian ini bertujuan mendeskripsikan peran kepala sekolah dalam peningkatan manajemen pembelajaran, pelaksanaan manajemen pembelajaran, serta faktor pendukung dan penghambatnya di SMP Islam Kluwan. Pendekatan kualitatif dengan rancangan studi kasus tunggal instrumental digunakan, dengan pengumpulan data melalui wawan...
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Freeze-Dried Phycocyanin Microcapsules: Effect of Maltodextrin-Soy Protein Ratios on Encapsulation Efficiency and Particle Properties
Natural pigments such as phycocyanin are highly sensitive to environmental conditions and therefore require stabilization to broaden their applications in functional products. This study aimed to evaluate the effect of varying ratios of maltodextrin and soy protein isolate (SPI) on the physical properties and encapsulation performance of freeze-dried phycocyanin microcapsules. Phycocyanin was extracted using phosphate buffer and encapsulated in three formulations with different maltodextrin–SPI...
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Analysis of Medical Records Staff Perceptions of RME Use at Indriati Solo Baru Hospital Using the TAM Model
AZZAHRA, EVA
; Ratri Sukmaningsih, Wahyu
; Ajika Pamungkas, Canggih
; Ratri Sukmaningsih, Wahyu
; Ajika Pamungkas, Canggih
MEDIKA TRADA : Jurnal Teknik Elektomedik Polbitrada
Vol 7
, No 1
(2026)
Electronic Medical Records are a health information system whose implementation is mandatory in all healthcare facilities in Indonesia in accordance with Minister of Health Regulation No. 24 of 2022. The success of EMR implementation is determined not only by the technology used but also by user acceptance of the system. This study aims to analyze the influence of medical records staff acceptance on the use of EMR at Indriati Solo Baru Hospital based on the Technology Acceptance Model (TAM) appr...
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Hubungan Karakteristik Individu, Kepribadian Hardiness, dan Dukungan Sosial terhadap Stres Kerja pada Pengendara Ojek Online
Journal of Occupational Health, Hygiene and Safety
Vol 3
, No 1
(2026)
Seiring dengan perkembangan ilmu pengetahuan, budaya, dan teknologi bersamaan dengan meningkatnya kebutuhan masyarakat, maka terjadi perubahan pada aktivitas sehari-hari dan pekerjaan di masyarakat yang menciptakan pekerjaan baru, salah satunya adalah ojek online yang merupakan perkembangan transportasi berbasis aplikasi. maraknya penggunaan transportasi online berpotensi menimbulkan permasalahan keselamatan dan kesehatan kerja bagi pengemudi ojek online yakni stres kerja. Tujuan penelitian ini...
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FTFPOS-IDF: A Fuzzy Rule-Based Thematic Term Weighting Scheme for Bloom's Taxonomy Question Classification
The increasing adoption of Artificial Intelligence (AI) in education has created a growing demand for automated and reliable assessment systems. Existing Bloom’s Taxonomy (BT) question classification approaches commonly rely on TF-IDF-based weighting schemes, which assign static term weights and often fail to capture the varying thematic importance of terms across cognitive levels. To address this limitation, this study proposes a novel Fuzzy Thematic Feature and Part-of-Speech Inverse Document...
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CFD Simulation of Flame Characteristics Resulting from Volatile Matter Combustion of Various Biomass Pellets
Fitrah, Ramavi Akbar Akhsanul
; Kusumaningtyas, Ratna Dewi
; Widjanarko, Dwi
; Widyastuti, Catur Rini
; Hidayat, Muslikhin
; Aziz, Muhammad
While biomass is a promising carbon-neutral alternative to coal, the specific volatile matter (VM) flame characteristics of diverse biomass pellets, particularly water hyacinth, remain under-researched. This study uses a numerical CFD approach (Ansys Fluent) to investigate how varying VM fractions influence flame structure in a 2D planar slice of the furnace block (25 cm width). Simulations employed the SST k–ω turbulence and Eddy dissipation model to capture mixing-limited chemical reactions. B...
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