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SINTESIS DAN KARAKTERISASI 〖Zn〗_x 〖Co〗_((1-x)) 〖Fe〗_2 O_4 x=0.0;0…
- Synthesis of electromagnetic wave absorber material based on spinel ferrite ZnX Co(1-x) Fe2O4 which aims to make materials that can function as electromagnetic wave absorbing materials. ZnX Co(1-x) Fe2O4 was synthesized using solid state reaction method using High Energy Milling (HEM) tool. ZnX Co(1-x) Fe2O4 material was characterized by XRD to determine the phase and crystal system formed, F…
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- xiii, 56 hlm.; ill.; tab.; 29 cm.
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- T1696692025
DAMPAK PERKULIAHAN DARING DENGAN MEDIA E-LEARNING UNSRI TERHADAP MOTIVASI B…
Perkuliahan daring merupakan suatu metode yang berbasis elektronik yang dilakukan dengan jarak jauh agar memudahkan mahasiswa mencari berbagai informasi dan materi pembelajaran yang dibutuhkan untuk menunjang berlangsungnya pembelajaran. Motivasi belajar merupakan faktor penting yang harus dimiliki mahasiswa dalam mencapai keberhasilan pembelajaran selama perkuliahan, mahasiswa yang memiliki mo…
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- xvii, 98 hlm.; ilus.; 29 cm
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- T1376062023
IDENTIFIKASI MISKONSEPSI SISWA MENGGUNAKAN FOUR-TIER DIAGNOSTIC TEST PADA M…
Penelitian ini bertujuan untuk mengetahui tingkat miskonsepsi mengenai materi cahaya yang terjadi pada siswa kelas IXA dan IXB di SMPN 1 Indralaya Utara. Penelitian ini menggunakan pendekatan kuantitatif dan metode deskriptif. Data dikumpulkan dengan menggunakan instrumen Four-Tier Diagnostic Test. Soal yang dipakai berupa soal pilihan ganda sebanyak 15 butir soal. Subjek penelitian adalah 58 o…
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- xvii, 98 hlm.; ilus.; 29 cm
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- T1376622023
ANALISIS FISIKA SERAT NANOKOMPOSIT GELATIN/PVA/EKSTRAK DAUN SALAM UNTUK APLIK…
Penelitian ini menganalisis karakteristik fisika serat nanokomposit berbasis Gelatin/PVA/Ekstrak Daun Salam yang diaplikasikan sebagai pembungkus makanan ramah lingkungan. Proses pembuatan serat dilakukan menggunakan teknik electrospinning, yang menghasilkan nanofiber dengan diameter rata-rata 1000-1600 nm. Analisis menggunakan Mikroskop cahaya menunjukkan distribusi ukuran partikel yang relati…
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- xiv, 46 hlm.; ill.; tab.; 29 cm.
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- T1695862025
IMPLEMENTASI VISIBLE LIGHT COMMUNICATION (VLC) UNTUK SISTEM MONITORING PERAIR…
Water quality is crucial for the environment, industry, and public health. To maintain water quality, a monitoring system capable of accurately and efficiently measuring key parameters is essential. This study develops an application based on Visible Light Communication (VLC) technology for real-time water quality monitoring. The application connects to a sensor system that measures various wat…
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- xv, 89 hlm.; ill.; tab.; 29 cm.
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- T1696922025
ANALISIS STRUKTUR KRISTAL HIGH ENTROPY ALLOY BERBASIS LANTHANUM MANGANITE (La…
Crystal structure analysis of Lanthanum Manganite (LaMnO3) based High Entropy Alloy using rietvield method and performed by mechanical milling technique. The materials used include La(Fe₀.₃₃Cu₀.₃₃Mn₀.₃₃)O₃ and La(Fe₀.₂₅Cu₀.₂₅Mn₀.₂₅Ni₀.₂₅)O₃ with ethanol solvent. The samples were milled for 5 hours, dried at 80°C for 24 hours, and sintered at 1100°…
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- xviii, 115 hlm.; ill.; tab.; 29 cm.
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- T1697252025
SINTESIS DAN KARAKTERISASI MATERIAL LaxCu(1-x)MnO3 SEBAGAI PENYERAP GELOMBANG…
Electromagnetic radiation due to the development of telecommunication technology can interfere with electronic devices, so microwave-absorbing materials are a potential solution. This study synthesized and characterized LaxCu(1-x)MnO3 as a microwave absorber in the C-band frequency using a mechanical milling method with variations x = 0, 0.25, 0.50, 0.75, 1.0. Characterization using XRD, SEM, a…
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- x, 82 hlm.; ill.; tab.; 29 cm.
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- T1696532025
Sintesis dan Karakterisasi Material LaxSr(1-x)MnO3 (0≤x≤1) sebagai Microw…
Synthesis and characterization of LaxSr(1-x)MnO3 (x = 0.0, 0.25, 0.50, 0.75, 1.0) as microwave absorbers were conducted using mechanical milling. Starting materials included La2O3, SrCO3, MnO2, and ethanol. The samples were mixed and milled for 5 hours, dried at 80°C for 24 hours, and sintered at 1000°C for 5 hours. XRD analysis revealed that SrMnO3 (x = 0.0) formed a main phase of SrMnO3 and…
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- xii, 68 hlm.; ill.; tab.; 29 cm.
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- T1696502025
IDENTIFIKASI RESERVOIR MENGGUNAKAN INVERSI SEISMIK IMPEDANSI AKUSTIK DAN MULT…
This study aims to identify reservoirs in the “NR” field located in the South Sumatra Basin using acoustic impedance seismic inversion and seismic multi-attribute analysis methods. Acoustic impedance seismic inversion is used to estimate impedance values that are related to porosity and fluid saturation in the reservoir, while seismic multi-attribute analysis integrates various seismic attr…
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- xii, 108 hlm.: Ilus., tab.; 29 cm
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- T1667252024
PENGEMBANGAN E-MODUL MATERI FLUIDA DINAMIS BERBASIS STEM PADA KONTEKS BENDU…
Telah berhasil dikembangkan e-modul materi fluida dinamis berbasis STEM pada konteks Bendungan Perjaya siswa kelas XI SMA yang valid dan praktis. Penelitian ini menggunakan prosedur pengembangan Rowntree yang terdiri dari tiga tahap: tahap perencanaan, tahap pengembangan dan tahap evaluasi. Tahap Evaluasi dalam penelitian ini menggunakan tahap evaluasi formatif Tessmer yang terdiri dari tahap: …
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- xvii, 74 hlm.; Ilus.; 29 cm
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- T1372132023
PENGEMBANGAN E-MODUL MATERI FLUIDA DINAMIS BERBASIS STEM PADA KONTEKS BENDU…
This study aims to prove the effect of self-efficacy of learning independence of Sriwijaya University Economic Education students. The study used a quantitative approach with associative research methods. The population in the study is economic education students of Sriwijaya University from the class of 2020 to 2022 totaling 246 students. Sampling using the Proportionate Strarified Random Samp…
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- xvii, 74 hlm.; Ilus.; 29 cm
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- T1372132023
PENGEMBAGAN E-LKPD BERBASIS KEARIFAN LOKAL PADA MATERI HUKUM NEWTON UNTUK PES…
Telah berhasil dikembangkan E-LKPD berbasis kearifan lokal pada materi hukum Newton untuk peserta didik kelas VII SMP yang valid dan praktis. Penelitian ini menggunakan prosedur pengembangan Rowntree yang terdiri dari tiga tahap: tahap perencanaan, tahap pengembangan dan tahap evaluasi. Tahap Evaluasi dalam penelitian ini menggunakan tahap evaluasi formatif Tessmer yang terdiri dari tahap: self…
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- xvii, 137 hlm.; ilus.; 29 cm
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- T1377402023
PENGEMBANGAN MEDIA PEMBELAJARAN BERBASIS AUGMENTED REALITY PADA MATERI USAH…
Pengembangan media pembelajaran berbasis augmented reality (AR) pada materi usaha dan energi di kelas XI SMA Negeri 3 Palembang. Pengembangan dilakukan dengan metode Research and Development (R&D) menggunakan model Alessi dan Trollip (analysis, design, and development). Data dikumpulkan melalui uji alpha. Hasil penelitian uji alpha menunjukkan bahwa kevalidan desain adalah 92,5% dengan kategori…
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- xix, 94 hlm.; Ilus.; 29 cm
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- T1375852023
RANCANG BANGUN ALAT UKUR KONSENTRASI ION TIMBAL(II) BERBASIS MIKROKONTROLLER …
As one of the factors for human survival, water quality must be considered further. This is due to indications of water pollution caused by waste. Water that has been polluted by waste will contain heavy metals. One of the heavy metals that is harmful and not needed by the body is lead. The maximum lead level allowed for drinking water quality is 0.01 mg/L based on the Regulation of the Ministr…
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- xiv, 55 hlm.; ilus.; 29 cm
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- T1502112024
PENGARUH VARIASI JARAK JARUM KE KOLEKTOR PADA PERANGKAT ELECTROSPINNING TERHA…
The electrospinning method has become a leading technique in developing nanomaterials based on fiber structures (nanofibers), utilizing a high-voltage static electric field to draw a viscous solution towards the negative pole. By combining different materials, nanofibers can selectively absorb contaminants, opening opportunities for sensor detection development. One such combination is ion-impr…
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- xvi, 59 hlm., ilus., tab.; 29 cm
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- T1641882024
UJI SKEMA PARAMETERISASI KUMULUS MULTI-SCALE KAIN-FRITSCH PADA MODEL WRF-ARW …
Unpredictable changes in rainfall patterns demand the use of accurate weather models. This work aims to assess the performance of the WRF-ARW model with the Multi-Scale Kain-Fritsch (MSKF) scheme in forecasting rainfall over South Sumatra during September to November 2024. The model uses GFS data as input and is validated against ERA5 data. Results show that WRF-ARW predicts higher rainfall tha…
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- xv, 88 hlm.: Ilus., tab.; 29 cm
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- T1741972025
RANCANG BANGUN SISTEM MONITORING TOTAL DISSOLVED SOLID (TDS) DALAM AIR BERBAS…
Water quality monitoring systems are crucial for determining the suitability of water, especially for drinking purposes. This research aims to design and develop a Total Dissolved Solids (TDS) monitoring system using an Arduino Uno R3 microcontroller and data communication based on Visible Light Communication (VLC). The system consists of two modules (modems) that communicate using red laser (L…
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- xi, 80 hlm.; ill.; tab.; 29 cm.
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- T1741202025
DESAIN SISTEM VISIBLE LIGHT COMMUNICATION (VLC) UNTUK PENGUKURAN KETINGGIAN P…
Urbanization and deforestation exacerbate ecosystem degradation, increasing the risk of flooding and siltation, which are global challenges. This research aims to overcome the problem by designing a water level measuring instrument using Arduino UNO R3 integrated with visible light communication (VLC), with a red laser diode transmitter and a solar cell photodetector. The US- 015 sensor used ha…
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- x, 69 hlm.; ill.; tab.; 29 cm.
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- T1741102025
SINTESIS DAN KARAKTERISASI STRUKTUR PEROVSKITE BERBASIS LaMnO3 DENGAN SUBSTIT…
This study aims to synthesize and characterize the crystal structure of LaMnO3-based perovskite materials with multi-component substitution to evaluate the effect of compositional variation on phase formation, lattice parameters, crystallite size, and lattice strain. The research was conducted at PRMM, BJ Habibie Science and Technology Area (KST), BRIN, Serpong, from late 2024 to early 2025 as …
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- vii, 99 hlm.: Ilus., tab.; 29 cm
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- T1734042025
SINTESIS DAN ANALISIS STRUKTUR KRISTAL MATERIAL BERBASIS LANTHANUM MANGANITE …
Lanthanum Manganite (LaMnO3) is one of the perovskite materials developed through ion substitution because its structural properties can change depending on the composition of the substitution. This study aims to determine the effect of variations in the composition of Y3+, Sr2+, and Ba2+ ions substitution at site-A of the LaMnO3 structure on phase formation, crystal structure, and physical par…
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- xii, 72 hlm.; ill.; tab.; 29 cm.
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- T1734032025
ANALISIS TINGKAT KEPARAHAN KEBAKARAN HUTAN DAN LAHAN MENGGUNAKAN METODE DIFFE…
Ogan Komering Ilir (OKI) Regency in South Sumatra is a region with extensive peatlands that are highly prone to fires during the dry season. This study aims to analyze the severity of forest and land fires in the Peat Hydrological Unit (KHG) of Sungai Ulakkedondong – Sungai Lumpur for the years 2015, 2019, and 2023 using the Normalized Burn Ratio (NBR) and Differenced Normalized Burn Ratio (d…
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- xiii, 66 hlm.; tab.; ilus.; 29 cm.
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- T1734132025
MISKONSEPSI MAHASISWA PROGRAM STUDI PENDIDIKAN FISIKA FKIP UNSRI PADA MATERI …
Penelitian ini bertujuan untuk mengidentifikasi miskonsepsi yang dialami oleh mahasiswa Pendidikan Fisika FKIP Universitas Sriwijaya pada materi Bumi dan Antariksa. Metode yang digunakan adalah deskriptif kuantitatif dengan teknik purposive sampling, melibatkan 61 mahasiswa semester lima yang telah menempuh mata kuliah Bumi dan Antariksa. Instrumen yang digunakan berupa tes diagnostik pilihan g…
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- xviii, 97 hlm., ilus., tab.; 29 cm
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- T1738292025
PERANCANGAN DAN IMPLEMENTASI SISTEM KUNCI PINTU OTOMATIS BERBASIS RFID MENGGU…
This study successfully designed and implemented an automatic door lock system based on Radio Frequency Identification (RFID), integrating NodeMCU ESP8266 and MG996R servo motor as the locking mechanism. The system identifies users through registered RFID cards and automatically controls the door lock based on authentication results. Additionally, it records and manages user access data in real…
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- xiii, 30 hlm.; ilus.; tab.; 29 cm.
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- T1695382025
ANALISIS PERBANDINGAN LITOLOGI BAWAH PERMUKAAN DI DESA SERIANG KUNING KECAMAT…
A study was conducted to identify the comparison of subsurface lithology in the Kayuagung District, Ogan Komering Ilir, using 1D Schlumberger and Wenner geoelectric methods. The geoelectric resistivity method involves injecting electric current into the ground through two current electrodes and measuring the potential through two potential electrodes. By injecting electric current into a medium…
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- xiv, 89 hlm.; ilus.; 29 cm
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- T1456412024
APLIKASI SENSOR CAHAYA (BH1750) DALAM RANCANG BANGUN OTOMASI INTENSITAS CAHAY…
Sunlight plays an important role in the photosynthesis process of orchid plants for optimal growth. Cymbidium orchid plants, for example, require a range of sunlight intensity between 3500 lux to 4000 lux (B.V., 2023). When sunlight intensity is low, the photosynthesis process will inhibit orchid plant growth and flower formation (Sudarso et al., 2020). Therefore, it is important to ensure prop…
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- xi, 41 hlm.; ilus.; 29 cm
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- T1426862024
SINTESIS DAN KARAKTERISASI KOMPOSIT Ni0,5Co0,5TiO3 DENGAN POLIVINIL ALKOHOL (…
Ni0,5Co0,5TiO3 composites with PVA have been synthesized using the solids reaction method by mechanical milling technique and characterized using XRD, SEM-EDS, FTIR, and VNA. The XRD results showed a trigonal structure (R-3) with the lattice parameter increasing from 5.0486 Å to 5.0561 Å as the PVA concentration increased. SEM-EDS confirmed the distribution of homogeneous particles at 10% PVA…
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- xxi, 65 hlm.; ilus.; tab.; 29 cm.
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- T1695602025
SINTESIS DAN KARAKTERISASI MATERIAL KOMPOSIT YTTRIUM IRON GARNET (Y3FE5O12) D…
This study aims to determine the microwave absorption characteristics of the composite material Yttrium Iron Garnet (Y3Fe5O12) and Barium Monoferrite (BaFe2O4), this research was carried out composition variations to observe the effect of magnetic properties of each different component. The synthesis of composite compounds was carried out by the solid reaction method. XRD analysis showed that b…
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- xiv, 23 hlm.; ilus.; tab.; 29 cm.
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- T1694872025
KARAKTERISTIK SERAPAN GELOMBANG MIKRO MATERIAL KOMPOSIT Y2.5La0.5Fe5O12 DAN B…
This study aims to investigate the microwave absorption characteristics of Y2.5La0.5Fe5O12 and Ba0.9Sr0.1Fe2O4 composite materials with variations in sintering temperature. This study uses yttrium iron garnet or YIG (Y3Fe5O12) material substituted with La3+ elements and Barium Monoferrite (BaFe2O4) substituted with Sr3+ elements. The synthesis of composite compounds was carried out using the so…
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- xvii, 48 hlm.; ilus.; tab.; 29 cm.
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- T1695082025
SINTESIS DAN KARAKTERISASI KOMPOSIT ZnFe1,975La0,025O4 DENGAN POLIVINIL PIROL…
ZnFe2O4 ini termasuk kedalam sistem ferit spinel kubik normal untuk skala nano. ZnFe2O4 sebagai ferit spinel penting dalam penyerapan gelombang mikro akibat banyaknya kehilangan magnetik yang tinggi. Untuk meningkatkan sifat elektromagnetik pada ferit ZnFe2O4, dilakukan dengan mengubah distribusi ion dalam struktur spinel melalui doping magnetic. Penellitian ini dilakukan dengan doping magnetik…
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- xii, 45 hlm.; ilus.; tab.; 29 cm.
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- T1694922025
RANCANG BANGUN ALAT DETEKSI PERINGATAN DINI KEBAKARAN DALAM RUANGAN BERBASIS …
This research aims to design and implement an early fire detection system based on Arduino Uno. The system utilizes fire and smoke MQ-2 sensors to detect potential fires, with Arduino Uno as the main control unit. A buzzer and LED lights are used for local alerts, while notifications are also sent to a laptop through the Arduino IDE. Testing was conducted using various research materials such a…
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- xii, 34 hlm.; ilus.; 29 cm
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- T1408692023
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