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Menampilkan 11–20 dari 5215 artikel
PENGARUH TEKNIK HEEL EFFECT TERHADAP PIXEL VALUE (PV) DAN NILAI KONTRAS RADIOGRAFI PADA PEMERIKSAAN RADIOGRAFI OS FEMUR
Os Femur atau tulang paha adalah salah satu organ yang memiliki ketebalan objek yang berbeda antara bagian proksimal dengan bagian distalnya, sehingga dalam pemeriksaannya dibutuhkan teknik tertentu untuk mendapatkan kualitas gambar yang baik. Pada praktiknya, penggunaan teknik Heel Effect digunakan untuk pemeriksaan radiografi os femur agar mendapatkan kualitas gambar yang baik terutama pada Pixel Value (PV) dan Nilai Kontras Radiografi. Tujuan : Untuk mengetahui seberapa besar pengaruh penggun...
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STUDI LITERATUR : METODE PELATIHAN MANAJEMEN KESELAMATAN PROSES BAGI MANAJER, PENGAWAS DAN PEKERJA LAPANGAN DI PERUSAHAAN KILANG MINYAK BUMI
Masjuli, Masjuli
; Marhaendra, Andhika Dwi
; Handayani, Hanifah
; Ramli, Azizan
; Rosmalia, Rosmalia
Perusahaan kilang minyak bumi mempunyai potensi bahaya terjadinya kebakaran, peledakan, pencemaran lingkungan yang dapat menyebabkan korban jiwa manusia baik dari pekerja, maupun masyarakat, harta benda perusahaan, masyarakat dan kerusakan lingkungan. Oleh karena itu, untuk meminimalkan risiko, maka semua pekerja baik jenjang manajer, pengawas (supervisor), maupun pekerja lapangan (frontliner) perlu mendapatkan pelatihan untuk memahami manajemen keselamatan proses (Process Safety Management – PS...
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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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Comparative Deep Learning Models for Indonesian Gold Price Forecasting
Putra, Albi Pernata Jomantara
; Williamsyah, Baginda Mi’raj
; Rizal, Achmad
; Dewanta, Favian
; Prasasti, Anggunmeka Luhur
; Ziani, Said
This study evaluates LSTM, CNN-LSTM, LSTM-GRU, and CNN-LSTM-GRU architectures for forecasting Indonesian gold prices using 1,269 daily observations (2022–2025). Models utilized Bayesian-optimized hyperparameters and were benchmarked against ARIMA-GARCH and Random Forest baselines across 30-day and 365-day horizons. Performance was assessed via MAE, RMSE, R², and MAPE, confirming deep learning’s superiority in capturing non-linear dynamics over classical methods. The LSTM-GRU achieved the best nu...
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Digital Lean-Process Framework for Creative-Industry Efficiency (Case: Sipirok, Indonesia)
This study develops a community empowerment model for the creative economy by integrating local wisdom, education, institutional support, and technology while applying Value Stream Mapping (VSM) to reduce process inefficiencies affecting sustainable tourism. The research introduces Lean-based process optimization using engineering metrics such as cycle time, uptime, and defect ratio. Results indicate that Lean interventions reduced cycle time by 25.3%, increased uptime by 6.8%, and decreased wai...
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Implementation of Project-Based Learning (PjBL) Assisted by Geogebra Application to Improve Students’ Spatial Abilities
The purpose of this study was to determine whether the implementation of the Geogebra-assisted Project Based Learning (PjBL) model has an impact on improving students' spatial abilities or not. Quantitative method with experiments was used in this study. The sample used was class B and C students of Mathematics Education IAIN Kudus class of 2022/2023 who were selected through cluster random sampling techniques. To determine the level of effectiveness, pretest and posttest instruments were given...
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Exploring Mathematics Teachers’ Perceptions of ChatGPT for Personalized Learning and Technology Dependence
The development of artificial intelligence, particularly ChatGPT, has begun to influence mathematics learning in classrooms. This technology is not only used as a learning support tool but also affects how teachers teach and how students understand mathematical concepts. This study aims to analyze the effectiveness of ChatGPT in mathematics learning, its benefits and challenges, and the potential for technology dependence based on mathematics teachers’ perspectives. This study employed a System...
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Grouping of Student Attendance Discipline Levels Based on Daily Attendance Data Using the K-Means Algorithm
Putri, Syahwa Mutiara
; Rahmawati, Anita
; Bella, Alfina Chintya
; Gurowo, Damar Aji
; Arifin, Muhammad
; Putri, Syahwa Mutiara
; Rahmawati, Anita
; Bella, Alfina Chintya
; Gurowo, Damar Aji
; Arifin, Muhammad
Kedisiplinan kehadiran siswa merupakan aspek penting dalam proses pembelajaran karena mencerminkan partisipasi, tanggung jawab, dan kepatuhan terhadap aturan sekolah. Namun, data absensi sering kali hanya diperlakukan sebagai catatan administratif dan jarang dianalisis untuk mengidentifikasi pola keterlambatan yang berulang. Penelitian ini bertujuan untuk mengelompokkan pola keterlambatan siswa berdasarkan data absensi harian menggunakan algoritma K-Means guna memberikan gambaran yang lebih ters...
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Sentiment Analysis of Indomaret Poinku Using Lexicon-Based Labeling with KNN and Random Forest Algorithms
Sulaeni, Dini
; Purnamasari, Ade Irma
; Ali, Irfan
; Kurniawan, Rudi
; Nurdiawan, Odi
; Sulaeni, Dini
; Purnamasari, Ade Irma
; Ali, Irfan
; Kurniawan, Rudi
; Nurdiawan, Odi
JUISI : Jurnal Ilmiah Sistem Informasi
Vol 3
, No 1
(2026)
The increasing use of mobile applications in the retail industry has generated a large volume of user reviews that contain valuable insights regarding customer experience and service quality. However, the unstructured nature of these reviews requires an automated approach to extract meaningful patterns efficiently. This study aims to perform sentiment analysis on user reviews of the Indomaret Poinku application by integrating lexicon-based labeling with machine learning classification. A total o...
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Ticket Booking Information System at PERUM DAMRI Ende
Bhiju, Gedofrida Ludfina
; Mando, L.B. Finansius
; Sala, Elvira Esperanza
; Bhiju, Gedofrida Ludfina
; Mando, L. B. Finansius
; Sala, Elvira Esperanza
The development of information technology encourages public service agencies to improve the quality of service through the use of integrated information systems. PERUM DAMRI Ende as a provider of passenger transportation services, still faces problems in delivering information on schedules, routes, fares, and vehicle data management that has not been optimally integrated, thus causing uncertainty for service users. This study aims to design and build a Passenger Transport Vehicle Information Sys...
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