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Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains
Published by Universitas Riau
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Core Subject : Engineering,
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Articles 3,145 Documents
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Pengaruh Serangan Keamanan Pada Vanet Terhadap Performansi Jaringan Alfon Sera; Linna Oktaviana Sari
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Information and communication technology developing are very rapidly, because human needs keep growing. Human safety in driving is one of the important factors in technological development. VANET is communication between vehicles, so that it can be used as a smart traffic information system. The VANET network is an ad-hoc network that does not have a fixed infrastructure and the rapidly changing network topology VANET is vulnerable to various attacks. Analysis of AODV routing protocol using 150 nodes with no attack and with blackhole attack scenario. This research uses Network Simulator 2 and SUMO software to make a model of node mobility. The results show that the network simulated without attack has 99.56% PDR value the PDR value with blackhole attack is 0%. In conclusion, VANET network performance is otherwise influential towards blackhole attack because, the difference value lotwes no attack PDR value & blackhole attack PDR value is so significant.Keywords : VANET, AODV, Blackhole, PDR.
Sintesis Surfaktan Metil Ester Sulfonat (MES) Dari Palm Oil Metyhl Ester (POME) Dan Natrium Bisulfit (NaHSO3) Dengan Variasi Suhu Sulfonasi Dan Rasio Mol Pome : NaHSO3 Yuliatmi Yuliatmi; Syaiful Bahri; Yelmida Yelmida
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Methyl Ester Sulfonate (MES) is an anionic surfactant which is currently being developed. These surfactants can be produced from palm oil methyl ester. MES produced from sulfonation reaction with addition of sulfonation agents. MES can be synthesized from Palm Oil Methyl Ester (POME) and Sodium Bisulfite (NaHSO3) as the sulfonation agent with Calcium Oxide as the catalyst. The aims of this research are to determine the characteristic of the product, and to determine the effects of temperature and mole ratio of the product produced. Sulfonation process was carry out at the temperature of 80, 100, 120°C, the mole ratio of 1:1, 1:1,5, 1:2, the stirring speed of 450 rpm, and the time of 6 hours. Then purification of the MES surfactant and product analysis is carried out. The best characteristic of the MES is at temperature 100°C and mole ratio 1:2 with the density of 0,860 gr/ml, the viscosity of 1,966 cP, the pH of 3,53, the surface tension of 37,45 dyne/cm, the interfacial tension of 26,3 dyne/cm, the emulsion stability of 89%, and the yield of 83,25%.The surface tension is accordance to the commercial MES.Keyword : MES, POME, Sulfonation, Surfactant, Surface Tension.
Adsorpsi Zat Warna Rhodamin B Menggunakan Abu Terbang (Fly Ash) Batubara Teraktivasi Dengan Variasi Massa Adsorben Dan Suhu Adsorpsi Riris Verawati; Rozanna Sri Irianty; Zultiniar Zultiniar
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The increasing use of dyes in various industries causes environmental problems that must be addressed. Various methods have been done to reduce the dye waste, one of which is adsorption. Using of inexpensive and easily obtained adsorbents is one of the considerations in choosing the type of adsorbent used. The purpose of this research was to determine the ability of activated fly ash with NaOH by adsorbing Rhodamine B dyes at equilibrium with variations in adsorbent mass and adsorption temperature and determining the adsorption equilibrium model. This research was carried out by varying the mass of the adsorbent and the adsorption temperature. The result showed that the best mass of adsorbent for adsorbing rhodamine B at 140 minutes was 5 grams at an adsorption temperature 55 to obtain 89% of adsorption efectiveness. The adsorption mechanism meets the FreundLich isotherm model with a values of R2 equal to 0,935.   Keywords: adsorption, activation, dye waste, fly ash, rhodamin B
Pengaruh Waktu Dan Massa Terhadap Penyerapan Logam Fe Dalam Air Gambut Menggunakan Adsorben Sekam Padi Jannah, Roudhatul; Daud, Syarfi; Edward, Edward
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Rice husk is an abundant agricultural waste and has the potential to be used as a source of activated carbon for adsorbents. The purpose of this study was to determine the efficiency of removal of Fe in peat water, calculate the adsorption capacity, and compare with the quality standards of the Republic of Indonesia Ministry of Health No. 416 / MENKES / PER / IV / 2010 concerning drinking water quality standards. The fixed variables used in this study were stirring speed 180 rpm, carbonization temperature of 250oC, sieve size of 70 mesh, and HCL 4N activator. The independent variables used consisted of variations in mass of adsorbent 1; 1.5; 2; 2.5 grams and variations in time 30, 60, 90 and 120 minutes. The removal efficiency of Fe metal concentration was 79.7% in the mass of 2.5gr adsorbent with a contact time of 30 minutes. The highest adsorption capacity of Fe metal was achieved at 1gr mass with 90 minutes contact time of 0.212 mg Fe / gr. The results showed that Fe parameters were in accordance with Permenkes No. 416 / MENKES / PER / IV / 2010. Keywords: Adsorption, Adsorbent, Peat Water, Rice Husk
Modifikasi Kulit Telur Puyuh Dan Serbuk Besi Menjadi Katalis CaO/Serbuk Besi Untuk Reaksi Transesterifikasi Minyak Sawit Off Grade Produksi Biodiesel Vandhe Melsa Sembiring; Zuchra Helwani; Rozanna Sri Irianty
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Biodiesel can be synthesized from palm oil off grade using a CaO / iron powder catalyst in the transesterification stage. This study aims to produce biodiesel from low-quality raw materials and determine the effect of the process by looking at the effect of process conditions such as dehydration temperature and dehydration temperature on biodiesel yield. The process of making biodiesel is carried out by esterification and transesterification reactions. The catalyst with the highest catalytic activity was obtained at a dehydration temperature of 600°C and dehydration time for 3 hours with the condition of the transesterification reaction at 10:1 molar ratio of methanol/oil, catalyst concentration of 1% -b oil, reaction temperature of 70° C for 2 hours with yield biodiesel reached 90%. Keywords: biodiesel, CaO, off grade palm oil, iron powder, transesterification.
Identifikasi Kematangan Buah Nanas Menggunakan Metode Jaringan Syaraf Tiruan Bayu Fharadila; Feri Candra
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Pineapple is a tropical fruit that is quite popular in Indonesia, especially in Riau Province. Pineapple can be processedto create derivativeproducts from pineapple. Therefore, the quality of pineapple maturity must be maintained. At present, the process of sorting the quality of pineapple is still done manually by humans, so errors can occur in the identification process. Therefore, this study provides a system that can classify the quality of pineapple by using Image Processing and Artificial Neural Networks.Pineapple images are captured by digital cameras and processed using Matlab. Digital Image Processing is used to extract pineapple colors. Artificial Neural Networks are used for classification of pineapple quality. This study uses 70 pineapples for training data and 30 pineapple to test data. The quality of pineapple is divided into 2 classes, raw and cooked pineapple. The used input parameters for Neural Networks are Red, Green, Blue. Accurasy obtained by this application is 100% so that this application is suitable to be used. Keywords:, Digital Image Processing, Artificial Neural Networks.
Pengaruh Flat Slab Terhadap Keruntuhan Progresif Pada Struktur Gedung Tidak Beraturan Roni Suhendra; Zulfikar Djauhari; Ridwan Ridwan
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Technological developments in the field of construction are currently more advanced, the structure of the building not only an regular but also irregular. Terraced building structure in the shape of irregular very influential towards the collapse of the building. The collapse of the building can be the collapse of the natural and the artificial collapse. It is a natural collapse collapse caused by load capacity by building or building exceeds the ability of the structure personally. Potentialities of the failure of the structure due to the collapse, can lead to progressive collapse. This research aimed to analyze the effect of flat slab to the collapse beharfour of irregular building structures, and determine the type of collapse that occurred at irregular building structures. This research was conducted by analyzing the elements of the structure destroyed in advance the result of addition of maximum load. The analysis done by eliminating one or more of the critical column based on General Service Administration (GSA) code. Examination of structural strength using finite element based software, valuebased Demand Capacity Ratio (DCR). Irregular building structures have a progressive collapse when the value of the DCR is more than 1 that. The results of the analysis indicated progressive collapse did not occur on the structure of the building, due to irregular use of the building elements that form the structure of a flat slab. The collapse happened on only some elements of the structure of the building, both elements of the structure of the beams as well as elements of the structure column. Since its collapse did not occur on the structure of the building, so the building collapse type could not be seen. Keywords: Progressive collapse, irregular structure, flat slab, GSA, DCR, finite element program.
Pembuatan Biodiesel Dari PFAD Dengan Katalis Cu-HAp: Variasi Nisbah PFAD : Metanol dan Massa Katalis Kamarullah, Rahmat; Yelmida, Yelmida; Yusnimar, Yusnimar
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The increasing level of human dependence on fuel oil, an active step is needed to develop alternative fuels. At present biodiesel is a reliable energy as an environmentally friendly and inexpensive alternative energy in its production. Biodiesel is a fatty acid methyl ester (FAME) made from fat / oil. In this research, PFAD (Palm Fatty Acid Destillate) is used as raw material for making biodiesel. PFAD will be converted to FAME. This esterification reaction varied the ratio of PFAD: Methanol 1: 8, 1:12, and 1:15 with a constant stirring speed of 350 rpm at a temperature of 60 ËšC for 3 hours. The presence of metalhydroxyapatite catalysts (Cu-HAp, Co-HAp, Ni-HAp, and HAp) of 0.1, 0.2 and 0.3 grams will help convert PFAD to FAME. The effect of time and type of metal-HAp on the conversion of PFAD to FAME will be the focus of the study in this study. The highest biodelic yield was obtained at the PFAD ratio: Metahonol 1:15 with a catalyst mass of 0.1 gram. The biodiesel physics test results are in accordance with SNI 04-7182-2006 which includes a density of 0.84 g / ml, viscosity of 4.8 cSt, flash point of 120 ËšC, yield of 61.48%, acid number of 0.73 mg KOH / g of oil. Based on the analysis of GC-MS (Mass Chromatography Gas), the main compounds found in the biodiesel from PFAD were Pandecanoic methyl ester 18.49%. Key Words : biodiesel, esterification, methanol, PFAD.
Pengaruh Sorbitol Terhadap Karakteristik Bioplastik Berbasis Pati Sagu-Polivinil Alkohol (Pva) Dengan Menambahkan Kitosan Sebagai Filler Dan Sorbitol Sebagai Plastisizer Nurazizah, Nurazizah; Amraini, Said Jul; Bahruddin, Bahruddin
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Bioplastic based on sago starch have weaknesses in low mechanical properties. To improve the mechanical properties can be done by adding ingredients such as fillers, plasticizers and other addictive substances into the starch. This result aims to determine of bioplastic on the addition of polyvinyl alcohol, chitosan, and sorbitol to mechanical properties and biodegradability of sago starch-based bioplastic and formulating empirical equations the relationship between the nature of bioplastics and the research variables statistically. In thisstudy bioplastic are prepared in three stages of work. The first stage of sago starch at a ratio of 1:15 and heated at 80oC for five minutes. The second stage of the mixture was then added polyvinyl alcohol (10, 20, and 30 gram w/w) sorbitol (2%, 2,5%, and 3% w/w) and remainedstirred for ten minutes. The third stage of chitosan (2, 3, and 4% w/w) which was dissolved in acetic acid 1% w/v at 70oC was mixed into starch-PVA solution and remained stirred until glititization occurred. Then a mixture of printed bioplastic. Data analysis using response surface methodology (RSM) Shows that the factors that have the most significant effect on all responses are in the condition of ratio PVA 30 gram, chitosan 4% w/w, and sorbitol 3% w/w. The best response value obtained is the value of tensile strength 16,69 Mpa, elongation at break 94,77%, tear strength 12,729 khf/mm, water uptake 21,42% and biodegrability 78,29%. The result of analysis hopefully bioplastic show the surface of bioplastic polymers to be homogeneous with cross starch-chitosan bonds but there are still air bubbles, pores andcracks.Keywords: bioplastic, chitosan, polyvinyl alcohol , sago starch , sorbitol.
Penataan Kawasan Komersil Di Pekanbaru Dengan Menerapkan Prinsip Urban Farming Ahmad Ridho Darwis; Gun Faisal; Yohannes Firzal
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Pekanbaru city is predicted to be a service city and the largest economic center in the eastern part of Sumatra island. Various infrastructures begin to be built and developed without regard to environmental conditions that begin to deteriorate due to reduced green land and increased pollution. The high rate of development of new infrastructure in the middle of the city makes other buildings seem less interesting. For these reasons, it is necessary to restructure commercial area that starts to stop working as commercial area which is not only valuable, but also has a mission to maintain the ecology to balance the city environment. The area chosen for rearrangement is located at Jl. Tuanku Tambusai, Pekanbaru with an area of 4.5 Ha. Structuring commercial area uses design methods including finding issues, field data collection, literature studies and empirical studies. The final result is the creation of a commercial area by applying the principle of Urban Farming in order to realize an area that can support economic activities, keep the conditions of the city environment and be the balancer for the city environment. Keyword : Structuring, Commersial, Area, Urban Farming

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