This research aims to determine the characteristics of physical board particles based on the mixture ratio of Empty Fruits Bunches (EFB) and adhesive, thickness and pressure. The board particles are made from a mixture of Tankos fibers with 30% adhesive added. Each board particle has a different composition. In this study the independent variables were variations in the composition of Empty Fru…
Silver nanoparticles (AgNPs) are used as an alternative way to overcome antibiotic resistance because silver nanoparticles have antibacterial properties. Therefore, this research aimed to synthesize silver nanoparticles with an environmentally friendly method using bark extract of Sendulang (Antidesma ghaesembilla) and antibacterial activity against Staphylococcus aureus and Escherichia coli. T…
This study aims to determine the concentration of Total Suspended Solid (TSS) in the Komering River, Kayu Agung, Ogan Komering Ilir Regency, and to analyze the relationship between TSS and water quality parameters such as pH and electrical conductivity (EC). Samples were taken from six points with varying environmental characteristics and analyzed using gravimetric methods; pH and EC were measu…
This study aims to describe the affixation of verb forms in the articles of the Tribun Sumsel daily newspaper, covering: 1) form of affixation, and 2) the meaning of affixation. This type of research is descriptive qualitative with the method of observing and noting to classify data. The results of this study: 1) form of verb forming affixes, and 2) The meaning found is in the form of denotativ…
Basically a heat exchanger is a heat transfer device used to transfer internal heat energy between two or more fluids available at different temperatures. In most heat exchangers, the fluids are separated by heat transfer surfaces, and ideally they do not mix. Heat exchangers are used in process, power, Petroleum, transportation, air conditioning, refigeration, cryogenics, heat recovery, altern…
Cyclone separator is a device for separating solid particles and fluids. There are several ways that can improve cyclone performance, one of which is modification by adding cyclone with a smaller geometry size to obtain more efficient performance. In this study, one cyclone with a smaller geometry was added to the main cyclone and used one type of particle, namely coconut shell powder. Where in…
This study analyzes the design of a nuscale reactor with the shape of a pin cell, assembly, and core, with nuclear fuel in the form of uranium dioxide which is varied by changing the percentage from 0% to 7% using the OpenMC program. This research was conducted to obtain the reactor design and the calculation of the effective multiplication factor, reaction rate. and flux distribution for 2 yea…
This research discusses the neutronic design of a fast reactor core of the GFR type with a thermal power of 500 Mwt based on metallic uranium (U-10% wtZr) fuel with a coolant in the form of S-CO2, and by applying the strategy burnup Modified CANDLE in the preparation of fuel during combustion. Neutronic calculations for fuel cells and reactor cores were carried out using the PIJ and CITATION mo…
This research discusses the use of MOX fuel in the Gas-cooled Fast Reactor (GFR) core using OpenMC code. GFR is one of GEN-IV reactors that operate at high temperatures and fast neutrons. MOX is a nuclear fuel consisting of uranium (U≤96%) and plutonium (Pu≥4%) where plutonium can be obtained from combustion products from thermal reactors such as PWR. The plutonium material in MOX used in t…
Salah satu bagian yang terpenting dari transformator adalah minyak isolasi. Iasolasi cair yang biasa digunakan saat ini adalah minyak mineral. Dimana minyak mineral ini tingkat terurainya sangatlah rendah. Untuk itu perlu dilakukan penelitian lebih lanjut mengenai minyak isolasi berbahan minyak nabati yang ramah lingkungan. Minyak kelapa sawit RBDPO Olein salah satu minyak nabati yang kekuatan …
Pada umumnya, minyak bumi sering digunakan sebagai isolasi cair karena kinerjanya yang baik dan harganya yang relative murah. Namun minyak bumi yang memiliki sifat tidak dapat diperbarui jika digunakan terus menerus maka akan habis. Berbagai studi dan penelitian telah banyak dilakukan untuk mencari alternatif isolasi cair yang dapat diperbarui dan ramah lingkungan dimana minyak nabati dianggap …
Liquid isolation is one of the materials that is very useful for protecting both human and electrical components such as transformer from the danger of electricity. One of the liquid isolation is created from palm oil (RBDPO) that still need to be added titanium dioxide (TiO2). Before it become liquid isolation, it need to be tested, one of them is partial discharge testing. PD testing, in this…
Neutronic analysis of Sodium-cooled Fast Reactor (SFR) core with 1000 MWth power and Mix-Oxide (MOX) fuel based on the “Benchmark for Neutronic Analysis of Sodium-cooled Fast Reactor Cores with Various Fuel Types and Core Sizes” has been determine. This study uses a variety of fuels (U,TRU)O2 and (Th,TRU)O2. Calculations were performed using OpenMC with nuclear data ENDF/B-VII.1 for validat…
IMAN HARAHAP. Physical and Mechanical Test of Particleboards Made from Gelam Barks (Melaleuca leucadendron L.) and Adhesive Polyvinyl Acetate (PVAc) (Supervised by HILDA AGUSTINA and HERSYAMSI). The research objective was to determine physical and mechanical properties of particleboards made from gelam barks and adhesive polyvinyl acetate (PVAc). The research was conducted at the Department of …
Penelitian ini bertujuan untuk memodifikasi alat pengempa papan partikel dengan menggunakan kompor listrik dan dongkrak hidrolik agar didapat panas yang lebih merata dan efisien serta produk yang lebih berkualitas. Penelitian ini telah dilaksanakan di lingkungan Jurusan Teknologi Pertanian Fakultas Pertanian Universitas Sriwijaya pada bulan September 2011 sampai dengan Februari 2012. Metode pen…
Sintesis partikel Fe3O4 dengan bahan baku pasir tambang sungai Megang Musi Rawas telah dilakukan dengan metode kopresipitasi. Tahapan kopresipitasi meliputi penimbangan sampel, pelarutan dengan menggunakan HCl 20 ml, pengendapan dengan NH4OH 36,5 ml, pencucian dengan aquades dan pemanasan menggunakan furnace. Penelitian dilakukan dengan memberikan variasi temperatur padasaat pelarutan dengan ma…
Synthesis of silver nanoparticles was carried out using Ilex macrophylla bark extract. The aims of this research was to determine the optimal conditions of the extract volume and heating temperature in silver nanoparticles synthesis. Silver nanoparticles formed under optimal conditions were determined by reducing groups, stabilizer, crystal size, crystal structure, morphology, and antibacterial…
Preparation and Characterization Submicro Particle of Poly (Lactic Co-Gycolic Acid) Loading Salbutamol Sulfate Using Stabilizer Poly (Vinyl Alcohol) Faris Irvan Saputra 08061381621055 ABSTRACT Salbutamol Sulfate belongs to the Class III Biopharmaceutics Classification System (BCS) which shows that its solubility is high but has a low permeability. Low permeability will affect the bioavailabilit…
Synthesis of silver nanoparticles using tembesu bark extract (Fagraea fragrans) and antifungal tests on fungi that infected mango plants have been carried out. Making AgNPs through variations in the volume of the tembesu bark extract and temperature, the best volume of tembesu bark extract whichwas 5 mL and the best temperatureof AgNPs is at 70oC. The results of the analysis FTIR on tembesu bar…
Buku ini ditulis Kunjana Rahardi berdasarkan pengalaman konkret penulis yang sudah pernah menuliskan lebih dari 490 artikel opini dan kolom di berbagai media massa. Buku ini bukanlah semata-mata ’cookbook’ yang disusun tanpa pengalaman seperti buku-buku yang ada di pasaran sekarang ini. Pada dasarnya buku ini merupakan pengalaman empiris penulis sendiri, mulai dari saat ‘sama sekali tidak…
Pengembangan teknologi partikel sediaan rifampisin bertujuan untuk meningkatkan kemampuan penetrasi obat pada makrofag paru-paru dan memperbaiki kelarutannya yang buruk di dalam air. Kopolimer Poly(Lactic-co-Glycolic Acid) (PLGA)-kitosan dan stabilizer Polyvinyl Alcohol (PVA) digunakan untuk mengenkapsulasi rifampisin. Penggunaan kitosan diharapkan dapat memperbaiki karakteristik dan stabilitas…
Preparasi dan karakterisasi submikro partikel poly (lactic co-glycolic acid) (PLGA) pembawa deksametason dengan stabilizer polyvinyl alcohol (PVA) akan membuat deksametason lebih efektif dan stabil karena dapat mengurangi efek samping penggunaan. Metode yang digunakan dalam pembuatan submikro partikel deksametason yaitu emulsion solvent evaporation. Ada tiga formula (F) yang dievaluasi pada pen…
Penelitian bertujuan untuk mempelajari pengaruh ukuran partikel dan jenis perekat terhadap sifat fisik dan mekanik papan partikel kayu pulai (Alstonia scholaris). Penelitian ini dilaksanakan di Laboraturium Alat dan Mesin Jurusan Teknologi Pertanian, Fakultas Pertanian, Universitas Sriwijaya dan Laboraturium Teknik Mesin Fakultas Teknik, Universitas Sriwijaya mulai bulan Agustus 2016 sampai…
Preparasi dan karakterisasi submikro partikel azitromisin bertujuan untuk meningkatkan penetrasi azitromisin di dalam kulit sebagai strategi untuk meningkatkan bioavaibilitas azitromisin. Pembuatan submikro partikel azitromisin menggunakan metode emulsion solvent evaporation dengan polimer PLGA dan distabilkan oleh PVA, serta menggunakan 3 variasi suhu, yakni suhu 23; 37; dan 45○C. Penentuan …
Telah dilakukan penelitian mengenai preparasi dan karakterisasi submikro partikel Poly(Lactic-co-Glycolic Acid) pembawa roksitromisin dengan stabilizer Poly(Vinyl Alcohol) menggunakan variasi waktu sonikasi. Pembuatan submikro partikel bertujuan meningkatkan kemampuan penetrasi roksitromisin sehingga dapat digunakan untuk sistem penghantaran obat melalui kulit. Preparasi roksitromisin dalam ben…
Telah dilakukan penelitian pengembangan elektroda karbon partikel nano jelaga minyak tanahdan aplikasinya pada baterai lithium ion. Karbon partikel nano dipreparasi dariminyak tanahmenggunakan pembakaran pirolisis plasma. Karbon partikel nano yang dihasilkan dikarakterisasi menggunakan titrasi Boehm untuk mengetahui gugus fungsional pada karbon, Point Zero Charge (pHpzc) untuk menentukan m…