PERBANDINGAN LOGISTIC REGRESSION DAN XGBOOST DALAM KLASIFIKASI KONDISI MENTAL…

Accurate mental state identification is important across various fields, and EEG is a biomedical signal widely used for this purpose as it can directly and non-invasively record brain electrical activity. However, the complex, nonlinear, and high-dimensional characteristics of EEG signals require effective classification methods. This study aims to implement and compare the performance of Logis…

KOMPARASI KINERJA MODEL NAIVE BAYES, SVM, DAN RANDOM FOREST DALAM KLASIFIKASI…

The increasing number of reviews for the Google Gemini app on Google Play Store reflects a variety of user opinions regarding the performance of this AI-based application. To identify sentiment patterns, this study conducted a comparative study of three classification algorithms: Support Vector Machine (SVM), Naive Bayes, and Random Forest, using 14,479 raw reviews collected through scraping. T…

PENGEMBANGAN MEDIA PEMBELAJARAN BERBASIS VIDEO TUTORIAL PERAWATAN MESIN BUBUT

This study aims to develop video tutorial-based learning media on lathe machine maintenance materials and to determine its validity and practicality. The research method used was Research and Development (R&D) with the 4D development model consisting of define, design, develop, and disseminate stages. The research subjects were students of the Mechanical Engineering Education Study Program who …

PENGARUH GENDER DAN PEMAHAMAN MATERI TERHADAP KETERAMPILAN PRAKTIKUM LAS SMAW…

Jenis penelitian ini adalah ex post facto yang bertujuan untuk mengetahui pengaruh gender dan pemahaman materi terhadap keterampilan praktikum las SMAW pada mahasiswa Pendidikan Teknik Mesin Universitas Sriwijaya. Populasi penelitian berjumlah 85 mahasiswa Program Studi Pendidikan Teknik Mesin Universitas Sriwijaya yang telah menempuh mata kuliah praktik las busur dan asetilin. Sampel penelitia…

PENGEMBANGAN JOBSHEET BERBASIS PJBLBERBANTU INVENTOR CAM ULTIMATE PADA MATERI…

This study employed a research and development (R&D) approach using the ADDIE Model (Analysis, Design, Development, Implementation, and Evaluation) to develop a Project-Based Learning (PjBL)-based jobsheet assisted by Autodesk Inventor CAM Ultimate for CAM Milling material that is valid and practical. The research was conducted in the Mechanical Engineering Education Study Program. The validity…

ANALISIS MINAT MAHASISWA PADA MATA KULIAH PENGELASAN DI TINJAUAN DARI GENDER …

This study aims to analyze students' interest in welding courses from a gender perspective. The study used a mixed methods approach involving 60 respondents, consisting of 30 male and 30 female students. Data collection techniques were conducted through questionnaires and interviews. Data analysis used descriptive statistics, the Mann–Whitney U test, and qualitative analysis to strengthen the…

PENGARUH VARIASI TEGANGAN LISTRIK TERHADAP KARAKTERISTIK MEMBRAN PVDF SnO2 UN…

The results indicate that electric voltage variation significantly affects the characteristics of PVDF–SnO₂ membranes. Increasing the voltage from 15 kV (PSE 1) to 30 kV (PSE 3) leads to improvements in pore size and distribution, where PSE 3 shows the highest average pore size (6.03 ± 0.12), while PSE 1 has the lowest (4.44 ± 0.17). In terms of mechanical properties, PSE 1 exhibits the h…

PENERAPAN SISTEM SORTIR SAMPAH KERTAS OTOMATIS MENGGUNAKAN METODE NAÏVE BAYE…

Paper waste is a type of waste that continues to increase in number so that it requires proper management so that it can be recycled optimally. One of the efforts to support the recycling process is to sort paper waste by type. This research aims to develop a real-time paper waste classification system based on digital image processing using HSV color features and contour features that cover ar…

PENGEMBANGAN JOBSHEET DIGITAL BERBASIS GOOGLE SITE PADA SISTEM PERAWATAN DAN …

Penelitian ini bertujuan untuk mengembangkan jobsheet digital berbasis Google Site pada mata kuliah Sistem Perawatan dan Perbaikan di Program Studi Pendidi- kan Teknik Mesin Universitas Sriwijaya serta mengetahui tingkat validitas dan kepraktisan produk yang dikembangkan. Metode penelitian yang digunakan adalah penelitian dan pengembangan (Research and Development) dengan model ADDIE yang melip…

MESIN-MESIN Pertanian

Edition

-

ISBN/ISSN

979-526-322-6

Collation

xii,193 hlm. : ilus.;Tab.;20 cm

Series Title

-

Call Number

631.3 Har m

ANALISIS SENTIMEN PENGGUNA APLIKASI GAME ROBLOX PADA ULASAN GOOGLE PLAY STORE…

The rapid advancement of information technology has significantly boosted the digital entertainment industry, notably the online gaming platform Roblox, which boasts over 111 million daily active users globally. In Indonesia, the high number of users correlates with a vast volume of reviews on the Google Play Store, encompassing diverse opinions on gameplay experience, technical issues, and app…

METODE ENSEMBLE MACHINE LEARNING PREDIKSI KEKASARAN PERMUKAAN BAJA S45C PADA …

Surface roughness is a critical quality indicator in precision manufacturing industries due to its direct impact on fatigue resistance and tribological performance of machine components. This study aims to predict surface roughness (Ra) values in the CNC milling process of S45C steel using flood cooling by integrating Support Vector Regression (SVR) and Gaussian Process Regression (GPR) algorit…

ANALISA FINANSIAL BULLRIPPER SEBAGAI ALAT PEMBAJAKAN DI PT MUSI HUTAN PERSADA

Land preparation activities in Industrial Plantation Forests (HTI) require heavy equipment to improve the effectiveness and efficiency of soil processing. The Komatsu D85E-SS Bullripper is used to loosen the soil and prepare planting rows. This study aimed to determine the operational costs and financial feasibility of using the Bullripper at PT Musi Hutan Persada. The research method used was …

EFISIENSI KERJA PEMBAJAKAN DENGAN BAJAK PIRING MENGGUNAKAN BULRIPPER DI PT MU…

Land preparation in the Industrial Forest Plantation (HTI) sector demands high mechanization efficiency to overcome challenges posed by complex topography and extreme soil compaction. PT Musi Hutan Persada utilizes a bullripper unit as a primary support for disc plow operations during primary tillage. This study aims to evaluate the work efficiency of such plowing operations through the analysi…

EVALUASI POLA KOROSI PADA NARROW BODY AIRCRAFT MENGGUNAKAN METODE PARETO ANAL…

The structure of a current aircraft is composed of 80% aluminum and 20% composites. Aluminum is a non-ferrous metal known for its corrosion resistance and light weight. Furthermore, aluminum alloys are easy to manufacture and have a high strength-to-weight ratio (GMF, 2018). An aircraft requires lightweight materials to reduce weight and improve fuel efficiency. Structural corrosion that occurs…

UJI FATIK LENGKUNG DARI MATERIAL KUNINGAN YANG MENDAPATKAN PERLAKUAN PANAS AN…

Kuningan merupakan paduan tembaga dan seng yang banyak digunakan dalam industri otomotif, kelistrikan, dan manufaktur karena memiliki sifat mekanik yang baik serta ketahanan terhadap korosi. Namun, material ini rentan mengalami kegagalan akibat beban berulang atau fatik. Penelitian ini bertujuan menganalisis pengaruh perlakuan panas Uji Fatik Lengkung dari Material Kuningan yang Mendapatkan ter…

UJI KINERJA MESIN PENGERING OTOMATIS TIPE RAK DENGAN PEMANAS LISTRIK PADA KER…

Drying is an important stage in the processing of snakehead fish crackers because it affects moisture content, product quality, and shelf life. Traditional drying methods are still widely used; however, they have limitations due to dependence on weather conditions and the risk of contamination. Therefore, the use of a rack-type dryer with an electric heater can be an alternative to provide a mo…

UJI KINERJA MATA PISAU PENGURAI SABUT KELAPA MESIN SEMI OTOMATIS TIPE G50-BRT

ANANDA VARISSA AULIYA ANANTA. Performance Test of Coconut Husk Decomposer Blade on Semi-Automatic Machine Type G50-BRT (Supervised by TAMARIA PANGGABEAN). The performance test of the coconut husk decomposer blade on the semi-automatic machine type G50-BRT has been conducted. Coconut husk is an agricultural waste that can be utilized into valuable products such as Cocopeat, Cocofiber, and cocobr…

ANALISIS KARAKTERISTIK MEMBRAN BERBAHAN POLYETHERSULFONE (PES) DENGAN PENAMBA…

Air merupakan sumber daya vital yang ketersediaannya semakin terancam oleh polusi limbah domestik dan industri. Oleh karena itu, diperlukan teknologi pengolahan yang efektif dan efisien. Studi ini bertujuan untuk menganalisis karakteristik membran Polyethersulfone (PES) yang diinkorporasi dengan perak nitrat (AgNO₃) untuk aplikasi pengolahan air bersih. Membran disiapkan menggunakan 15 wt% PE…

STUDI KUALITATIF: PENGELOLAAN PRAKTIK INDUSTRI PROGRAM STUDI PENDIDIKAN TEKNI…

Penelitian ini bertujuan untuk menganalisis pengelolaan Praktik Industri pada Program Studi Pendidikan Teknik Mesin di Universitas Sriwijaya yang meliputi aspek perencanaan, pelaksanaan, evaluasi, serta faktor pendukung dan penghambat. Penelitian ini menggunakan pendekatan kualitatif dengan metode studi kasus. Pengumpulan data dilakukan melalui teknik wawancara dan dokumentasi, kemudian dianali…

PENGARUH METODE PENGELASAN SMAW, ASETILIN, TIG DAN MIG TERHADAP KETAHANAN KOR…

Penelitian ini bertujuan untuk menganalisis pengaruh metode pengelasan SMAW, asetilin, TIG, dan MIG terhadap ketahanan korosi baja stainless steel 304 menggunakan metode uji kehilangan massa. Spesimen hasil pengelasan direndam dalam larutan NaCl 3,5% selama 672 jam untuk mensimulasikan lingkungan korosif, kemudian produk korosi dihilangkan menggunakan larutan asam nitrat (HNO₃) 15% sebelum di…

STUDI KUALITATIF: PERAN MATA KULIAH MICROTEACHING TERHADAP PENINGKATAN EFIKAS…

This study aims to analyze the role of the microteaching course in improving the self-efficacy of Mechanical Engineering Education students. The research used a qualitative descriptive approach involving lecturers, alumni, and students through observation, interviews, and documentation. Data were analyzed using the Miles and Huberman model supported by NVivo 12 Pro. The results show that microt…

DETEKSI SERANGAN SSL PINNING BYPASS DAN DDOS PADA JARINGAN SMARTHOME MENGGUNA…

The rapid development of the Internet of Things (IoT) has accelerated the implementation of smart home systems connected to the internet. However, this advancement also increases the risk of cyberattacks, particularly SSL Pinning Bypass, which threatens communication security, and Distributed Denial of Service (DDoS), which disrupts service availability. This study aims to detect both types of …

STUDI SIFAT MEKANIK ALUMINIUM MATRIX KOMPOSIT DENGAN PENAMBAHAN SILICONE CARB…

Aluminum matrix composite (AMC) is an engineering material developed to improve the mechanical properties of recycled aluminum through the addition of reinforcing particles. This study aims to analyze the effect of the addition of Silicon Carbide (SiC) at 3 wt% and Rice Husk Ash (RHA) at 2 wt%, 4 wt%, and 6 wt% on the hardness, impact toughness, and microstructure of aluminum scrap using the st…

PENGARUH PERLAKUAN PANAS TERHADAP TRANSFORMASI FASA Ti-6Al-4V GRADE 23 HASIL …

Ti-6Al-4V Grade 23 is a biomaterial widely used for implant applications due to its high strength, good corrosion resistance, and excellent biocompatibility. The Selective Laser Melting (SLM) process produces a martensitic α′ microstructure with high residual stress, which requires heat treatment to improve microstructural stability and material properties. This study aims to analyze the eff…

ANALISIS KEKERASAN MIKRO DAN STRUKTUR MIKRO TI-6AL-4V GRADE 23 PADA PROSES SE…

This study aims to analyze the effect of Selective Laser Melting (SLM) process parameters on the microhardness and microstructure of Ti-6Al-4V Grade 23 titanium alloy. This material is widely used in biomedical and aerospace applications due to its high strength-to-weight ratio, good corrosion resistance, and excellent biocompatibility. However, laser-based additive manufacturing processes ofte…

ANALISIS PENGARUH PARAMETER SELECTIVE LASER MELTING TERHADAP SIFAT MEKANIK PA…

This study investigates the effect of Selective Laser Melting (SLM) process parameters on the mechanical properties of Ti-6Al-4V Grade 23, a material widely used in biomedical applications, particularly medical implants. The advancement of additive manufacturing technology has enabled the fabrication of personalized prostheses with complex geometries tailored to individual needs. Selective Lase…

PENGEMBANGAN DAN KARAKTERISASI MEMBRAN POLYVINYLIDENE FLUORIDE (PVDF) DENGAN …

This study is aimed at developing membranes made from Polyvinylidene Fluoride (PVDF) modified with the addition of Silver Nitrate (AgNO₃). The membranes are expected to possess robust mechanical properties, optimal surface morphology, high filtration performance, and resistance to fouling. The membranes are fabricated using the phase inversion method, where PVDF solution at varying concentrat…

RANCANG BANGUN ALAT PENYARING AIR LIMBAH RUMAH TANGGA MENJADI AIR SIAP MINUM …

This research focuses on the design and testing of a household wastewater filter that aims to convert domestic wastewater into potable water through the application of multi-stage filtration and disinfection technology based on Polyvinylidene Fluoride (PVDF) membranes. The background of the research is based on the increasing need for clean water, limited access to potable water, and high level…

PENGARUH SILICON CARBIDE DAN RICE HUSK ASH TERHADAP SIFAT MEKANIK ALUMINIUM M…

The development of the automotive and aerospace industries is driving demand for lightweight materials such as aluminum alloys. In Indonesia, aluminum demand reaches 1.2 million tons per year, but 56% is still met by imports (ESDM, 2024). Aluminum waste, such as cans and spare parts, can pollute the environment. Aluminum recycling is a solution to reduce waste and dependence on imports, as well…