Department of Physics: Recent submissions
Now showing items 221-240 of 2673
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Karakterisasi Komposit Polimer Konduktif Berbasis Pati Jagung dan Karet Alam dengan Variasi Karbon Konduktif
(Universitas Sumatera Utara, 2023)Conductive polymer composites have been successfully synthesized through the crosslinking method and their conductivity properties have been analyzed. Corn starch and natural rubber which are non-conductive natural polymers ... -
Sintesis Hidrogel Komposit Menggunakan Lignin H2SO4 Di-Isolasi dari Kulit Ari Kopi sebagai Adsorben Methylene Blue
(Universitas Sumatera Utara, 2023)The synthesis of hydrogel composite based on kulit ari kopi has been carried out by crosslinking method. The method applied by the addition of lignin H2SO4 isolated from kulit ari kopi was 0.05%, 0.1%, 0.2%, 0.3%, the ... -
Studi Karakterisasi Variasi Fraksi Volume Serat Kelapa Sawit sebagai Material Komposit
(Universitas Sumatera Utara, 2023)Composites based on polyester matrix and palm oil fly ash fillers have been successfully prepared using simple techniques. Palm fiber reinforcement is used to determine the level of its influence on physical properties ... -
Pembuatan dan Karakterisasi Aerogel Nanoserat Selulosa yang Diisolasi dari Pelepah Aren sebagai Adsorben Minyak
(Universitas Sumatera Utara, 2023)This study aims to produce cellulose nanofibers with appropriate size for material technology applications synthesized from sugar palm fibers. Ultrasonication using an ultrasonic homogenizer is used to produce cellulose ... -
Pembuatan Nanoserat Selulosa Aerogel dengan Pengisi Fe3O4@SiO2 Sebagai Adsorben Minyak
(Universitas Sumatera Utara, 2023)In this research, aerogel cellulose nanofibers have been successfully synthesized using TEMPO oxidation with Fe3O4@SiO2 as filler through a freeze-drying process. Composite aerogels were synthesized with variations in the ... -
Pemanfaatan Pati Talas Beneng (Xantoshoma Undipes K. Koch) Pada Pembuatan Plastik Biodegradable dengan Plasticizer Gliserol dan Karakterisasinya
(Universitas Sumatera Utara, 2023)Study has been conducted on Biodegradable plastic made from talas beneng starch (Xantoshoma Undipes K. Koch) and chitosan with glycerol plasticizer using ratio of starch and chitosan with variations of 30%:70%; 40%:60%; ... -
Transisi Fase Order-Disorder pada Model Dinamika Opini q-Voter
(Universitas Sumatera Utara, 2023)This study examines the opinion dynamics of the q-voter model in the presence of a noise parameter. The q-voter model is one of the well-known opinion dynamics models in Sociophysics, namely a model that describes the rules ... -
Pemanfaatan Serbuk Jati Belanda dan Bentonit Sebagai Material Keramik
(Universitas Sumatera Utara, 2023)In this research, solid-state reaction method was used to fabricate ceramic materials based on Belanda Teak wood powder and Bentonite. Sample activated at 1000 ℃. It is mixed for 30 minutes at 500 rpm using a ball milling. ... -
Karakterisasi dan Analisis Bolus Radioterapi dari Silicone Rubber, Resin Epoksi dan Serbuk Gergaji Kayu Menggunakan Energi Berkas Elektron
(Universitas Sumatera Utara, 2023)In this study, boluses were made using the melt intercalation method with a size of 11 x 11 x 1 cm3, from a mixture of silicone rubber, epoxy resin, catalyst and wood sawdust with various compositions (80:16:3:1)%wt, ... -
Pengaruh Penambahan Variasi Plasticizer Sorbitol terhadap Karakterisasi Bioplastik Pati Porang (Amorphophallus Oncophyllus) dan Kitosan
(Universitas Sumatera Utara, 2023)Research has been carried out on the manufacture of bioplastics with variations in the composition of porang starch: chitosan with glycerol plasticizer and the effect of adding sorbitol (0%, 25%, 50%, 75%, 100%) with the ... -
Pembuatan Alat Pemantauan Tekanan Oksigen dalam Tabung Jarak Jauh Berbasis Internet Of Things (Iot) Menggunakan Server Thingspeak
(Universitas Sumatera Utara, 2023)Oxygen Tube have become a much-needed item due to the very fast and easily contagious spread of the virus, making it difficult for everyone to avoid being infected with the COVID-19 type virus that attacks the respiratory ... -
Sintesis dan Karakterisasi Komposit Bafe 12o19/RGO Berbasis Pasir Besi Alam Sebagai Penyerap Gelombang Mikro
(Universitas Sumatera Utara, 2023)In this study, composites of barium hexaferrite with Reduced Graphene Oxide (RGO) were synthesized using the ultrasonication method as microwave absorbers. was synthesized from natural iron sand as the precursor material ... -
Uji Uniformity dan Kesesuaian tebal Slice Menggunakan ACR 464 Phantom Pada Kualitas Citra Pesawat CT-Scan 16 Slice
(Universitas Sumatera Utara, 2023)Research has been conducted on the uniformity test and the suitability of slice thickness on CT-Scan images using the American College Of Radiology (ACR) Phantom. Which aims to determine the accuracy and uniformity value ... -
Studi dan Karakterisasi Nanopartikel Bafe12o19/Pvdf dengan Metode Co-Presipitasi untuk Bahan Pembuatan Superkapasitor
(Universitas Sumatera Utara, 2023)Supercapacitors are an interesting energy storage technology to be studied. This research uses mesoporous BaFe12O19 particles and Polyvinylidene fluoride (PVDF) polymers that have been synthesized as materials to obtain ... -
Pengaruh Penambahan Plasticizer Gliserol terhadap Karakterisasi Plastik Biodegradable Pati Porang (Amorphophallus Oncophyllus) dengan Plasticizer Sorbitol
(Universitas Sumatera Utara, 2023)This research examined the effect of a combination of sorbitol and glycerol plasticizers on porang starch biodegradable plastics with chitosan at concentrations of 40, 60 and 80 wt% using the melt intercalation method ... -
Rancang Bangun Sistem Monitoring dan Kontrol Lampu, Kipas Angin Menggunakan Sensor Gesture Berbasis Internet of Things (Iot)
(Universitas Sumatera Utara, 2023)Research on monitoring and control systems for lamps, fans using gesture sensors based on the Internet of Things (IoT) uses Gesture sensor components, DS18B20 temperature sensors, BH1750 light sensors, lamps, relays, ... -
Pemanfaatan Pati Talas Beneng (Xantoshoma Undipes K.Koch) pada Pembuatan Bioplastik dengan Plasticizer Sorbitol dan Karakterisasinya
(Universitas Sumatera Utara, 2023)Research has been conducted on the manufacture of bioplastics and chitosan with with sorbitol plasticizer was made by varying starch and chitosan in the ratio of 30%: 70%, 40% : 60%, 50% : 50%, 60% : 40%, and 70% : 30% ... -
Karakteristik Nanopartikel C,N,F untuk Material Pembersih Air Limbah Logam Berat Cu dan Cr
(Universitas Sumatera Utara, 2023)Magnetic nanoparticle material has been synthesized using the coprecipitation method. The preparation process begins by mixing iron sand powder with 32% HCl solvent. After that the solution was added with CoCl2, NiCl2, ... -
Identifikasi Proyeksi Perubahan Iklim terhadap Probabilitas Penyakit Demam Berdarah Dengue di Provinsi Sumatera Utara
(Universitas Sumatera Utara, 2023)Indonesia has a tropical climate with warm temperatures and high rainfall variability, which is a comfortable place for the Aedes Aegypti mosquito. Clear evidence of climate change is the increase in global air temperature ... -
Pemanfaatan Zeolit Alam Pahae dalam Pembuatan Beton Polimer Menggunakan Serat Kulit Jagung dan Resin Polyurethane sebagai Perekat
(Universitas Sumatera Utara, 2023)Research has been carried out on polymer concrete with Pahae natural zeolite aggregate and corn husk fibers and polyurethane resin fibers as adhesives using a hot press at 170 ℃ for 30 minutes, which aims to determine the ...