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JST ( Jurnal Sains Terapan )
Published by Politeknik Negeri Balikpapan
ISSN : 24068810     EISSN : 24775525     DOI : -
Core Subject : Education, Social,
Mathematics Social Sciences Other
JST (Jurnal Sains Terapan), dengan ISSN 2477-5525 (media online) dan 2406-8810 (media cetak) adalah media publikasi hasil penelitian dibidang Social Cience, Sains Terapan dan Matematika Terapan.
Arjuna Subject : -
Articles 161 Documents
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Formulasi Briket Biorang Sekam Padi dan Biji Salak sebagai Sumber Energi Alternatif Finta Amalinda; Muhammad Jufri
JST (Jurnal Sains Terapan) Vol 4, No 2 (2018): JST (Jurnal Sains Terapan)
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat, Politeknik Negeri Balikpapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jst.v4i2.484

Abstract

Alternative energy can be produced from appropriate technology by utilizing biomass waste. For instance, rice husk and zalacca seeds which were by-product and waste that the benefits of has not been widely studied. The aim of this research is to find out the head value, duration of tima, ash and water contents, volatile matter, and carbon content of the mixture form of bio arangrice husk and zalacca seeds. This research is an experimental research which test was carried out in the laboratory. This research was conducted from June to august 2018. The object of this research is biomass formulation of bio arang mixtures of rice husk and zalacca seeds by mass comparison 0,25:1, 0,5:0,75, 0,5:0,5, 0,75:0,5 and 1:0,25 with the total mass of 200 gram, formed on the mold with a diameter of 5 centimeters, and a height of 7 centimeters. Based on the research, the result found that the mixed formulation of rice husk and zalacca seeds with ratio of 0,25:1 has the longest time duration which 38 minutes and 15 seconds, the largest water content approximately 5,761% and the highest carbon content was 60,326%. Furthermore, the mixed formulation of rice husk and zalacca seeds with ratio 1:0,25 has the highest heating value as much as 260,309 KJ/gr, the highest ash content was 13,829%, and the highest volatile matter substances was about 33,671%.Keywords : Briquettes , Bioarang , Rice husk biomass, Zalacca seeds
Perancangan dan Analisis Kinerja Aplikasi Pembelajaran Praktik Geomatika Berbasis Android Totok Sulistyo; Wahyu Anhar; Karmila Achmad
JST (Jurnal Sains Terapan) Vol 5, No 1 (2019): JST (Jurnal Sains Terapan )
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat, Politeknik Negeri Balikpapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jst.v5i1.541

Abstract

Many researchers study the implementation of smartphone applications (apps[WU1] ) for education,  inplementation of smartphone apps for geomatic education have advantages such as independent experiences can be acquired by user at anytime and anywhere. The aims of this research are designing, developing and analysis the application of GeomatikaDroid bugs, crash and ANR so that its performance can be improved. The methods that were carried out in this research consisted of desk study, collecting requirement of users candidate, analysis and formulation user requirement, designing application, implementation, testing, Application publication, maintenance and improment of application performance. Result of this research is the application of Android (GeomatikaDroid) which is giving aids to user in topograpic measurement. Application of GeomatikaDroid can be developed using Java Programming in client side and PHP in server side and MySQL as database server. GeomatikaDroid has function in reading, recording, calculating and storing data of both of analog and digital teodholit measurement. The performance was increased started from version 1.1 to version 1.10, proven by declining crash and ANR or improving stability, rising download rate and  the average of star rate is 4.944 out of 5. 
Pemanfaatan Limbah Kulit Singkong untuk Produksi Oligosakarida melalui Hidrolisis Kimiawi Sasongko, Ashadi; Lumbantobing, Deosdado Farrel H; Rifani, Agus
JST (Jurnal Sains Terapan) Vol 5, No 1 (2019): JST (Jurnal Sains Terapan )
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat, Politeknik Negeri Balikpapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jst.v5i1.586

Abstract

Cassava peels are biomass wastes that is rich of polysaccharides. Polysaccharides can be hydrolyzed  chemically under control to produce  oligosaccharides. The aims of this research are to study the suitability of the type of acids and the concentration of acids to hydrolyze, and analize the hydrolysis product using spectrophotometer and thin layer chromatography (TLC). The acids used in the hydrolysis were chloride acid, sulphuric acid, phosphoric acid, acetic acid, and citric acid, in concentration 0.3; 0.4, 0.5; 0.6; 0.7 molar. Total sugar was determined using phenol method. Analysis of reducing sugar  was performed by the DNS method. The ratio of total sugar to reducing sugar was used to predict the degree of polymerization (DP). Almost all of acids with each concentration produced DP 2-6. The results were also confirmed using TLC and the retardation factor (Rf) compared using glucose and maltose as relative standards.Keywords: cassava peel waste, oligosaccharide, chemical hydrolysis
Perancangan dan Analisa Implementasi LTE Home pada Jaringan 4G LTE di Frekuensi 2300 Mhz Asri Wulandari; Toto Supriyanto; Mohammad Itsnan
JST (Jurnal Sains Terapan) Vol 5, No 1 (2019): JST (Jurnal Sains Terapan )
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat, Politeknik Negeri Balikpapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jst.v5i1.585

Abstract

Design and analysis of lte home implementation on 4g lte networks in 2300mhz frequency. The demand for data connections for customers is currently increasing. FTTx as one of the Fix broadband technology (FBB) has several weaknesses, especially when applied to rural areas. LTE Home as a smart home technology is a form of WTTx 4G LTE technology service that is expected to be able to meet the data needs of customers. This study aims to design and analyze the implementation of LTE home by measuring the value of QoS Class Identifier (QCI) and the value of Radio Frequency Key Performance Indicator (RF KPI) to improve network reliability for voice and data communication services. Some parameters measured are packet loss, delay, jitter, throughput for QCI values and Radio Signal Received Power (RSRP) and Radio Signal Received Quality (RSRQ) for RF KPI values.The results of RF KPI Measurement show that the value for RSRP is -89dBm. This value is quite good because it matches the predetermined KPI standard, which is between -70 to -90 dBm. For RSRQ values obtained for -11dBM, this result is classified as good according to the KPI standard which is <-8 dBm. These results indicate that the quality of 4GLTE network services provided for LTE Home implementation services has met RF KPI standard values. Whereas for the QCI parameters obtained results that both voice call and video streaming, the value still meets the standard Good for the User Experience KPI (QCI) value that is packet loss <5%, delay <150 ms and jitter <75 msKeywords: LTE home, RF KPI. QCI, RSRP, RSCP,packet loss, jitter
Rancang Bangun Alat Pendeteksi Kebusukan Telur Menggunakan Metode Fuzzy Logic Berbasis Mikrokontroler Arduino Nano 328 David Christover; Adhe Yusphie Panca T.S.; Jordan Ananda Purnomo; Muhammad Muttaqin Yusup
JST (Jurnal Sains Terapan) Vol 5, No 1 (2019): JST (Jurnal Sains Terapan )
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat, Politeknik Negeri Balikpapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jst.v5i1.584

Abstract

Eggs are a source of protein for the people of Indonesia and are always the main choice in meeting daily food needs. This is because the processing is practical and the price tends to be relatively cheap when compared to other animal protein sources.Currently the need for national chicken eggs has reached 65%, dominated by broiler eggs. It is predicted that the need for eggs nationally will increase until 2021 by 4.87% with a consumption level of 4.18% per year. Even so, in the selection of quality eggs from producers, sellers and consumers it is still fairly conventional and not guaranteed whether the eggs are suitable for consumption or not, so a new method is needed that is more efficient and knows the characteristics of good egg quality.Based on this background, a practical tool that is easy to use for conventional traders is formed.This tool works by using BH1750 and MQ-2 sensors as parameters in determining rotten eggs which are then processed using Arduino-nano 328 microcontroller, then processing the data using fuzzy logic artificial intelligence based on parameters that have been compiled from the membership function of each parameter that has been obtained from sensor. This research was conducted by collecting information first, then conducting a survey to a location in the form of a traditional market to find eggs taken randomly by testing 3 egg samples.Based on the results of three tests on 3 egg samples taken randomly, it was found that egg 2 with a Ro value of 4.29 K.Ohm, 4.53 K.Ohm and 4.79 K.Ohm and had a value of light intensity of 10.00 lux and 5.00 lux are eggs that have the best quality compared to 2 other eggs. Keywords: Egg, Fuzzy Logic, Light
Perfomansi Parameter Carrier to Noise Interference Ratio (C/N+I) terhadap Penggunaan Metode Physical Cell Identitiy (PCI) Teknologi 4G LTE 1800 MHz Maria Ulfah
JST (Jurnal Sains Terapan) Vol 5, No 1 (2019): JST (Jurnal Sains Terapan )
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat, Politeknik Negeri Balikpapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jst.v5i1.633

Abstract

Long Term Evolution (LTE) is a fourth generation technology (4G) developed by the 3rd Generation Partnership Project (3GPP). LTE is able to provide downlink speeds of up to 100 Mbps and uplink of 50 Mbps. Interference is a signal whose presence in telecommunications networks is undesirable, has a disturbing nature and can reduce the performance of telecommunications networks including 4G LTE technology  In this study, physical cell identity (PCI) method was used to improve carrier performance to noise interference ratio which resulted in an increase in the value of  5.08 dB to 5.14 dB with a difference of 0.06 dB
Efektifitas dan Efisiensi Penggunaan Klorinator sebagai Sarana Pelarut Disinfektan di Usaha Kecil dan Menengah (UKM) Nur Ahmad Habibi; Citra Tristi Utami; Mulyana Mulyana; Ratu Ruri Amelia
JST (Jurnal Sains Terapan) Vol 5, No 1 (2019): JST (Jurnal Sains Terapan )
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat, Politeknik Negeri Balikpapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jst.v5i1.630

Abstract

Water is an important substances in the food industry. The quality of water that is used in the small Industry (UKM) generally has bad quality. This is caused by lack of knowledge and cost. The aim of the study was to evaluate effectiveness and efficiency of using chlorinator as disinfectan (chlorine) solvent in the small industry (UKM). This study used complete randomized design with 2 repetitions and  analyzed water quality before and after treatment. The parameters that was used was coliform and eschericia coli (e. coli) contaminant and total chlorine in the water. The cost efficiency was calculated with evaluate chlorine/m3. Results showed a decrease of coliform and E.coli (p<0.05), from 2,3 x105 cfu/100 ml to 0 cfu/ml for both. Furthermore, total chlorine after treatment showed no decrease significantly (p<0.05). The cost efficiency of using chlorinator was cheap, just  Rp. 916/m3. The use of chlorinator was effective to decrease total microbiology contaminant and can keep total chlorine concentration in the standard of water quality for hygiene and sanitation. Furthermore, chlorinator was also efficience in cost to be  implemented  in small industry (UKM)
Penerapan K-Means Clustering Dalam Pengelompokan Lipstik Matte Lip Cream Berdasarkan Warna RGB Arief Bramanto Wicaksono Putra; Rihartanto Rihartanto; Ananda Mulia Alhumaerah
JST (Jurnal Sains Terapan) Vol 5, No 1 (2019): JST (Jurnal Sains Terapan )
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat, Politeknik Negeri Balikpapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jst.v5i1.527

Abstract

Lipstick is the most widely used type of cosmetics and very familiar in the community, almost all make-up brands produce this type of cosmetics. Lipstick colors can generally be grouped into the following: nude, pink, and red. The lipstick used as the object of the study were 10 (ten) samples obtained from NYX Matte Lip Cream Lipstick, from each sample sampled 1 time. From the diversity of colors, lipstick can be grouped into 3 (three), 4 (four) and 5 (five) groups. Based on this, the lipstick will be grouped using the K-Means Clustering method, but before grouping the characteristics obtained with the Euclidean Distance and Coefficient Correlation methods and the combination of various attribute formation are needed. The grouping results using the K-Means Clustering method produces 3 clusters, 4 clusters and 5 clusters where the formation of attributes by Summing up and searching for Average Values is the formation of attributes that produce the same clustering in clustering processes 3 and 4 clusters. The formation of centroid values also affects the results of grouping. The results of the grouping comparison are: grouping 3 clusters produces group A consisting of 8 members, group B and C have 1 different member. And grouping 4 clusters results in a division of groups A and D having 4 different members and groups B and C having each cluster 1 member.
Analisa Perawatan Berbasis Keandalan pada Sistem Bahan Bakar Mesin Utama KMP. Bontoharu Risna Imanuell; Mohammad Lutfi
JST (Jurnal Sains Terapan) Vol 5, No 1 (2019): JST (Jurnal Sains Terapan )
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat, Politeknik Negeri Balikpapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jst.v5i1.540

Abstract

This study determines the prone components and the mean time to failure of KMP. Bontoharu. The method used in this research is the qualitative analysis, which comprises the failure mode, effect, analysis (FMECA), fault tree analysis (FTA), and quantitative analysis using Weibull distribution to determine the mean time to failure (MTTF) value. The risk method based inspection and maintenance is used to determine the value of equipment risk and maintenance scheduling model, and the inspection method used is visual check. The results revealed that the value of MTTF filter was 194 hours, separator was 502 hours, and pipe was 2508 hours. Filters and separators have the highest level of risk, while the mainframe, daily trays, transfer pumps, feed pumps, injection pumps, and injector service tanks have medium risk levels.   Keywords: fuel system, Reliability, FMECA, FTA, Maintenance
Analisis Komposisi Fasa dan Parameter Unit Sel Kristal Hasil Kalsinasi Suhu Tinggi Abu Cangkang (Paguroidea) dengan Metode Rietveld Mukminin, Amirul
JST (Jurnal Sains Terapan) Vol 5, No 1 (2019): JST (Jurnal Sains Terapan )
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat, Politeknik Negeri Balikpapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jst.v5i1.635

Abstract

Quantitative analysis by data refinement   of the Rietveld method for calcium-based catalyst samples from hermit crabs (Paguroidea) ash has been successfully carried out. The results of the improvement showed that the samples of hermit crab shell calcined at 900 ° C gave different phase compositions and unit cell parameters due to the influence of calcination times 2, 3 and 4 hours. 2 hours is a single phase   CaCO3 calcite, 3 hours are multiphase   CaCO3 calcite and CaO, while a  4 hour sample is a single phase CaO . The reliability value (R) of the improvement results,  RP, Rwp, Rexp and GoF = χ2 gives good and acceptable results

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