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Menampilkan 1–10 dari 674 artikel
Data-Driven Machine Learning Models for Steam Turbine Efficiency Prediction
Increased electricity consumption in Indonesia requires coal-fired power plants to operate at high efficiency. This study proposes a data-driven approach to predict the efficiency of coal-fired steam turbines by utilizing 844 historical operational data points from the XYZ coal-fired power plant. Input variables include main steam pressure and temperature, main steam flow, final feedwater temperature, and condenser vacuum pressure. Four machine learning algorithms, namely Random Forest, Extra Tr...
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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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Rekonstruksi Kurikulum Berbasis Outcome-Based Education (OBE) dalam Proses Pembelajaran: Studi Kasus di FKIP Universitas Ivet
Journal of Informatics Education
Vol 9
, No 1
(2026)
Pergeseran paradigma pendidikan tinggi menuntut LPTK mengadopsi kurikulum Outcome-Based Education (OBE) demi menjamin mutu lulusan yang relevan dengan abad ke-21. Namun transisi dari model konvensional sering kali menghadapi resistensi kultural dan hambatan struktural di lapangan. Penelitian ini bertujuan untuk menganalisis rekonstruksi dokumen kurikulum, dinamika transformasi proses pembelajaran dosen, dan sistem asesmen serta respons mahasiswa dalam implementasi OBE. Menggunakan pendekat...
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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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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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A data analytics driven digital supervision model for enhancing school counselors’ competencies in the era of technological transformation
This study addresses the need to enhance school counselors’ professional competencies through innovative supervision approaches in the era of digital transformation. The study aimed to develop and validate a data analytics-based digital supervision model for school counseling using a mixed-methods design. The quantitative phase involved 150 school counselors whose competencies were measured using a validated scale (Cronbach’s ? = .89). Results showed a significant increase in competency scores f...
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Student academic hardiness: descriptive analysis and its relationship with individual characteristic
Harahap, Ade Chita Putri
; Indreswari, Henny
; Hidayah, Nur
; Setyowati, Arbin Janu
; Ramli, M
; Makhsin, Mardzelah Binti
; Harahap, Dinda Permatasari
; Simarmata, Sari Wardani
This study aims to analyze students' academic hardiness and examine its differences based on individual characteristics as well as its relationship with academic achievement. This research employed a quantitative approach with a descriptive and correlational design. The participants consisted of 103 students selected using accidental sampling. Data were collected using a Likert-scale questionnaire measuring the dimensions of commitment, control, and challenge. Data analysis was conducted using d...
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The effect of spiritual well-being on career anxiety among students
Career anxiety among university students is commonly associated with external factors such as job readiness and environmental pressure. However, the role of internal aspects, particularly spiritual well-being, has not been widely explored. In fact, an individual’s ability to find meaning in life and deal with uncertainty may influence their level of anxiety. This study aims to examine the effect of spiritual well-being on career anxiety among students across different semesters. This study emplo...
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Effect of Printing Speed on the Properties of 3D Printed Products Using Recycled PET Filament
Fitriyana, Deni Fajar
; Agung Efriyo Hadi
; Nugroho Suhodo
; Aldias Bahatmaka
; Januar Parlaungan Siregar
; Tezara Cionita
; Zuhriyan Ash Shiddieqy Bahlawan
; Achmad Yanuar Maulana
Recycled PET has been widely studied for its potential use in 3D printing applications. However, few research has examined how printing speed affects recycled PET filament products' mechanical and physical qualities. This research examines how printing speed influences the physical and mechanical qualities of 3D-printed PET filament goods created from mineral water bottle trash. In this study, filament fabrication is carried out using the homemade pultrusion machine, then the filament is used fo...
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Reinforcement Learning for Personalised Critical Care Treatment using Scalable Parallel Computing
Utomo, Chandra Prasetyo
; Ichikawa, Kohei
; Insani, Nashuha
; Thonglek, Kundjanasith
; Xingyuan, Kang
; Maulani, Chaerita
; Rachmawati, Ummi Azizah
Sepsis is one of the leading causes of death in intensive care units. Many patients do not receive timely or effective treatment, which lowers their chances of survival. We developed a reinforcement learning–based framework to provide personalised treatment recommendations for sepsis patients. The model creates simple patient representations from treatment responses, groups patients with similar patterns, and learns the best treatment policy for each group. To reduce long training time, we use p...
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