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SAINSTECH: Jurnal Penelitian dan Pengkajian Sains dan Teknologi
Published by Institut Sains dan Teknologi Nasional
ISSN : 14107104     EISSN : 2685824X     DOI : https://doi.org/10.37277/stch.v32i3
Core Subject : Science, Engineering,
Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering Mechanical Engineering
SAINSTECH adalah jurnal ilmiah multidisiplin diterbitkan oleh Institut Sains dan Teknologi nasional Jakarta yang dikelola oleh Lembaga Penelitian dan Pengabdian pada Masyarakat Sainstech menerbitkan artikel yang berasal dari internal Institut dan menerima naskah secara Nasional. Bidang yang difokuskan adalah bidang Sains dan Teknologi. Sainstech mempunyai konsep yang mana dalam pengumpulan artikelnya berguna sebagai solusi dari hambatan, tantangan dan permasalahan yang terjadi di masyarakat. Tujuan publikasi jurnal ini adalah untuk menyebarkan pemikiran konseptual atau gagasan sebagai hasil dari penelitian yang telah dilakukan. Sainstech menerima manuskrip atau naskah artikel hasil riset, riset terapan, dan rekayasa yang relevan dengan bidang keilmuan meliputi: Elektronika, Kendali, Telekomunikasi, Energi, Metalurgi, Rekayasa Mekanik
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 289 Documents
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Sintesis Nanopartikel Tembaga Untuk Pelapisan Kain Polipropilena Terhadap Karakterisasi Musfirah Cahya Fajrah
SAINSTECH: JURNAL PENELITIAN DAN PENGKAJIAN SAINS DAN TEKNOLOGI Vol 33 No 1 (2023): Sainstech: Jurnal Penelitian dan Pengkajian Sains dan Teknologi
Publisher : Institut Sains dan Teknologi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37277/stch.v33i1.1658

Abstract

Abstract This journal discusses the distribution of nanoparticles on the surface of the sample cloth and its crystal structure based on XRD results. This study consists of experiments and analysis of results using XRD, SEM, and FTIR. The results of this study concluded that the distribution of nanoparticles was less than optimal, which might be due to not using surfactants to modify the surface of the fabric, making it difficult for the nanoparticle clumps to spread and stick more evenly. Then it can be concluded that the nanoparticles formed are copper oxide (Cu2O) nanoparticles and have a crystal lattice type of a Primitive Cubic or simple cubic crystal lattice type overall, and sizes in the range of 25-130 nm. Keywords: Characterization, Copper Nanoparticles, Polypropylene Fabric
Komposisi 7:3 Terhadap Histerisis Material (B7S3)HF Musfirah Cahya Fajrah
SAINSTECH: JURNAL PENELITIAN DAN PENGKAJIAN SAINS DAN TEKNOLOGI Vol 33 No 1 (2023): Sainstech: Jurnal Penelitian dan Pengkajian Sains dan Teknologi
Publisher : Institut Sains dan Teknologi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37277/stch.v33i1.1659

Abstract

Abstract In this research has conducted on the analysis of the material BSHF, the result of mixing BHF substitution with Sr on the composition of 7: 3 of material notation (B7S3)HF. The manufacturing process is done by wet milling with alkhohol mixed for 40 hours, followed by heating temperature 1200oC for 2 hours. During the milling process with an interval of 10 hours, the powder take off to measuring the diameter of the particle with PSA. Material that have been in the form of crystals and re-milling for 4 hours and then follow by the sonication for 6 hours to get nano size of B7S3HF material. Material in this nano size at 70 kN compaction pressure to get the bulk to be analyzed by XRD, Permagraph, and SEM. From these results identified the effect on inducted for the magnetic properties of the material B7S3HF. Keywords:, Mechanical Alloying, sonication, magnetic induction ,hysteresis
PERANCANGAN ALAT TIMBANGAN HEWAN TERNAK MENGGUNAKAN SENSOR FIBER OPTIC DAN SOFTWARE ARDUINO IDE Rully Syafira Putri; Endang Iriawan; Bambang Widiyatmoko; Elda Rayhana
SAINSTECH: JURNAL PENELITIAN DAN PENGKAJIAN SAINS DAN TEKNOLOGI Vol 33 No 3 (2023): Sainstech: Jurnal Penelitian dan Pengkajian Sains dan Teknologi
Publisher : Institut Sains dan Teknologi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37277/stch.v33i3.1660

Abstract

Abstract The type and technique of feeding is the main thing related to the acceleration of livestock development but almost most of the farmers do not pay much attention to the type and quality of feed given to their animals. Therefore, researchers designed the farm animal scales by creating an optical fibre-based sensor and utilizing the Arduino IDE software system for the purpose of making animal farmers aware of the weight information of their animals. The design of the scales has been done in the laboratory of Optoelectronics and Instrumentation, Physics Research Center of Indonesian Institute of Sciences (LIPI) Serpong. The optical fibre sensor system with the received light intensity output was then transmitted by the photodetectors and then Analog to Digital Converter (ADC) process using the Arduino Software. Result of sensor characterization with varying diameter rubber hose with high sensitivity obtained sensor with diameter of 3.1 cm and 2.6 cm. The test results showed that the sensor with a diameter of 3.1 cm was able to withstand pressure of 3.1 kg. F/cm2 or a load equivalent of 905.2 kg. Keywords: Sensors, Optical Fiber, Software Arduino IDE, Livestock
Penghematan Energi Pada Sistim Pendingin Bangunan Hotel “The Dharmawangsa Wishnuwardhana Jam; Koswara Koswara; Nofirman Nofirma
SAINSTECH: JURNAL PENELITIAN DAN PENGKAJIAN SAINS DAN TEKNOLOGI Vol 33 No 3 (2023): Sainstech: Jurnal Penelitian dan Pengkajian Sains dan Teknologi
Publisher : Institut Sains dan Teknologi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37277/stch.v33i3.1661

Abstract

Abstract : Conservation of natural resources, one of which is electrical energy, is mostly generated from limited natural resources such as coal, petroleum, and natural gas. Electrical energy is crucial in the natural hospitality/ tourism industry, where air conditioning (AC) equipment consumes a significant amount of electrical energy, typically accounting for around 60% of the electricity usage. The purpose of this research is to analyze the consumption of electrical energy related to the operational efficiency of a hotel building. Energy auditing is the technique used to calculate the energy consumption and determine methods to control it in order to achieve energy savings. The activity involves determining the “Energy Efficiency Ratio” based on standards applied in Indonesia. By implementing electrical energy conservation measures, there can be economic benefits as well. The more efficient the energy usage, the lower the costs incurred to meet electricity needs. Keywords : Conservation Energy, Cold Storage
Perbandingan Kinerja 4 Mesin ATF Charger untuk Proses Flashing pada Transmisi Toyota Yaris Matic Wanda Wanda; Koswara Koswara; A Djoko Wiyono
SAINSTECH: JURNAL PENELITIAN DAN PENGKAJIAN SAINS DAN TEKNOLOGI Vol 33 No 3 (2023): Sainstech: Jurnal Penelitian dan Pengkajian Sains dan Teknologi
Publisher : Institut Sains dan Teknologi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37277/stch.v33i3.1662

Abstract

ABSTRACT This research is an experiment testing several Automatic Transmission Fluid (ATF) charger machines in the Flushing process during oil changes by comparing several ATF machines with the Toyota Yaris automatic transmission hydraulic pump. By knowing the performance of each of these tools, we can recommend a better and more efficient use for automatic car maintenance. The purpose of this study was to compare the ATF Charger Lounch Cat-501s, ATF Charger brand X1, ATF Charger brand X2 with a Toyota Yaris automatic transmission hydraulic pump. By knowing the performance of each of these tools, we can recommend a better and more efficient use for automatic car maintenance. besides that it also aims to find out the maintenance of the automatic transmission on the Toyota Yaris automatic transmission hydraulic pump. The method in this study uses experimental methods by conducting literature studies, sample preparation, group division, treatment implementation, measurement and observation and measurement of the speed of oil entering the transmission during flashing, data analysis, data interpretation, and report generation. The data collected includes efficiency, output power, generated pressure, costs incurred including maintenance costs. In addition, testing was also carried out to evaluate the performance of the Toyota Yaris automatic transmission hydraulic pump when using each type of ATF Charger machine during Flushing. The results showed that the ATF Brand X1 engine had the fastest performance in the process of changing the engine oil for the transmission of the Toyota Yaris automatic car, which was able to drain 1000 ml in 17.65 seconds, the speed was around 850 rpm (revolutions per minute), with an electric voltage of 12 Volts, as well as the cost of procuring the lowest equipment, which is IDR 1,807,530 Keywords: ATF Charger, Toyota Yaris, Matic
Analisis Optimalisasi Pemanfaatan Alumunium dari Sisa Proses Produksi Menjadi Bahan Baku Produksi Dengan Mempertimbangkan Aspek Kualitas, Biaya dan Mutual Benefit Dengan Pihak Ketiga Kristovel Sihaloho; Koswara Koswara
SAINSTECH: JURNAL PENELITIAN DAN PENGKAJIAN SAINS DAN TEKNOLOGI Vol 33 No 2 (2023): Sainstech: Jurnal Penelitian dan Pengkajian Sains dan Teknologi
Publisher : Institut Sains dan Teknologi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37277/stch.v33i2.1716

Abstract

Abstract PT ABC is a company engaged in the two-wheeled automotive manufacturing industry that wants to optimize the use of aluminum scrap left over from machining production and processing it into raw materials is carried out by third parties or suppliers with quality standards set by PT ABC. However, processed raw materials are the cause of high product defects because the ferrous content is always high. The first stage in reducing the level of disability is to identify the influencing factors. The method used is a fishbone diagram, followed by the Taguchi method to find out the factors that most influence the cause of product defects. From the results of data processing with a fishbone diagram, there are three influential factors. Among these three factors, the factor with the greatest influence is sought which results in product quality deviating from quality standards. From the results obtained it was concluded that product defects were caused by the percentage of ferrous content of 1.15%, while the percentage of application results using the Taguchi method was 0.09%. Decreasing the percentage of ferrous content affects product quality improvement, lower production raw material purchase costs and mutual benefits with third parties.
Studi In Silico: Senyawa Aktif Akar Senggugu (Clerodendrum serratum) terhadap Penghambatan Reseptor Human Chitotriosidase-1 (hCHIT1) sebagai Antiasma Herdini Herdini
SAINSTECH: JURNAL PENELITIAN DAN PENGKAJIAN SAINS DAN TEKNOLOGI Vol 33 No 2 (2023): Sainstech: Jurnal Penelitian dan Pengkajian Sains dan Teknologi
Publisher : Institut Sains dan Teknologi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37277/stch.v33i2.1717

Abstract

ABSTRACT Asthma is a chronic inflammatory disease that is usually characterized by airway inflammation. One of the plants that has been used for a long time to treat asthma is the root of Clerodendrum serratum. This study aimed to determine the potential of the active compound of senggugu root as an anti-asthma which was carried out in silico including prediction of molecular docking, physicochemical properties, and prediction of toxicity. Molecular docking prediction uses PLANTS, while physicochemical properties and toxicity uses the ProTox and pkCSM websites. Molecular docking results showed that the compounds apigenin-7-glucoside, β-Dihydrofucosterol, icosahydropicenic acid, D-mannitol, and queretaroic acid had better affinity than theophylline as the reference compound. Based on lipinski's role of five analysis, from the seven active compounds, there is apigenin-7-glucoside was not meet the requirements for lipinski's role of five but can still qualify for use as new drug compounds by increasing their permeability. The compound β-Dihydrofucosterol is the best candidate, because β-Dihydrofucosterol shows good parameters of absorption, distribution, metabolism and excretion. For prediction of β-Dihydrofucosterol toxicity is in class IV which is still safer than the comparator drug theophylline. The β-Dihydrofucosterol compound is also predicted not to have mutagenic, hepatotoxic, or sensitive effects for the skin. Keywords: asthma, Clerodendrum serratum, in silico, molecular docking
Minimalisasi Interferensi Dengan Metode Open Loop Power Control Pada Jaringan Femtocell Uplink FDD LTE-Advanced Irmayani Irmayani; Ishar Zulfika
SAINSTECH: JURNAL PENELITIAN DAN PENGKAJIAN SAINS DAN TEKNOLOGI Vol 33 No 2 (2023): Sainstech: Jurnal Penelitian dan Pengkajian Sains dan Teknologi
Publisher : Institut Sains dan Teknologi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37277/stch.v33i2.1718

Abstract

Abstract LTE-Advanced have a feature femtocell or often called HeNB in standard 3GPP release 10 which has low transmit power in indoor. On the other hand, the HeNB is causing interference that occurs due to the use of communication channel together between user HeNB and eNB in the same time either in uplink or downlink direction. Interference uplink direction occurs between HUE (Home User Equipment) or between HUE and MUE (Mobile User Equipment). The open loop power control method is used to minimize uplink interference on LTE-Advanced system with femtocell. This method minimizes the power of the interference so that interference power on eNB and HeNB decreases and the value of system performance parameters improves. From the results of the tests performed, the open loop power control method effectively minimizes interference with proven power interferences that decreased significantly both in eNB and HeNB. The average value of MUE interference power to HeNB is 1.73E-18, 5.46E-18, and 1.29E-06. Furthermore,the average value of HUE interference power to heNB is 1.58E-04, 5.26E- 05, and 5.43E- The decrease in interference power affects system performance such as SINR, throughput, spectralefficiency, and Eb / No. The open loop power control method was applied, the average percentage range of SINR above 30 dB was 13% - 100%. Then the average percentage range of throughput values above 2 Mbps is 70 - 100%. Then the average percentage range of spectral efficiency values above 10 bps / Hz is 13% - 43%. Then the average percentage range Eb / No above 20 dB is 13-100%. The system there is an increase in performance by 45% Keywords: Femtocell, Interference, LTE, LTE-Advanced, Open Loop Power Control
Pengaruh Susunan Konduktor pada Saluran Udara Tegangan Ekstra Tinggi (SUTET) Nizar Rosyidi AS; Edy Supriyadi; Sugianto Sugianto
SAINSTECH: JURNAL PENELITIAN DAN PENGKAJIAN SAINS DAN TEKNOLOGI Vol 33 No 4 (2023): Sainstech: Jurnal Penelitian dan Pengkajian Sains dan Teknologi
Publisher : Institut Sains dan Teknologi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37277/stch.v33i4.1747

Abstract

Abstract An effort to reduce or minimise electric field and medan magnit, a common transmission network to turn up for the conductor.But the tower transmission have some extent for environmental factors such as wind speed and construction cost to be more expensive.One of the influence of the strong electric fields magnit and the gap between its phase.How is the field of electricity and medan magnit the sutet 500 kv with this method of change the configuration of a conductor.This thesis is in the field of electricity and the horizontal magnit on the configuration, delta and vertical.The simulation done by the gap between fasanya on the configuration.From the calculation shows that if the distance between the phase changes made from 12 meters to 4.9 meters at the point of the review (0), then the magnetic flux density (B) it decreased from 6.83.10-6 be 1.58.10-6 tesla (horizontal configuration), the (delta configuration) decline of 5.9 .10-6 be 3.87.10-6 tesla tesla, and for (vertical configuration) penurunanannya of 1.12.10-5 be 6.8.10-6 tesla.While the results of the calculation of the electric field strength (E) by changing the distance between the phase from 12 meters to 4.9 meters at the point of the review (0), then there is a decrease in the electric field strength of 2.97 (kV / m) to 1.87 (kV / m) with (horizontal configuration), a decrease of 1.82 (kV / m) to 1.36 (kV / m) (vertical configuration).Likewise for delta configuration when the shortened distance between its phase, then the value of the electric field strength decreases from 0.949 (kV / m) to 0.769 (kV / m).Methods for calculating the linear regression on the delta configuration, vertical configuration, and horizontal slope (+) means that the greater the distance between the phase value of B and E increases.The resulting plot of magnetic flux density with distance between phases, the optimum value of the distance between the phase (δ) of 6.7 meters and the magnetic flux density (B) 8.03.10-6 (Tesla). While the electric field strength (E) 2.2 (kV / m). Method optimum value calculation results of electric field strength and magnetic flux density meet the standards set by WHO. Keywords: strong electric field, magnetic flux density, the distance between the phase and configuration
Analisis Formaldehid Pada Sediaan Cat Kuku Secara Kromatografi Lapis Tipis Dan Spektrofotometri Uv-Vis Yang Beredar Di Kota Bekasi Herdini Herdini; Veriah Hadi
SAINSTECH: JURNAL PENELITIAN DAN PENGKAJIAN SAINS DAN TEKNOLOGI Vol 33 No 4 (2023): Sainstech: Jurnal Penelitian dan Pengkajian Sains dan Teknologi
Publisher : Institut Sains dan Teknologi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37277/stch.v33i4.1748

Abstract

ABSTRAK Formaldehid merupakan suatu senyawa kimia yang berbentuk gas tidak berwarna, mudah menguap, berbau spesifik dan bersifat iritatif. Formaldehid digunakan pada sediaan cat kuku yang bertujuan sebagai pengawet dan sebagai selaput untuk membentuk resin yang berguna untuk meningkatkan daya lekat. Menurut Peraturan Kepala Badan POM No. HK 03.1.28.11.07517 tahun 2011, formaldehid digunakan dalam formulasi cat kuku dengan persyaratan kadar maksimum 5%. Oleh karena itu dilakukan analisis formaldehid pada sediaan cat kuku yang beredar di Kota Bekasi. Penelitian dilakukan secara kualitatif menggunakan kromatografi lapis tipis (KLT) dan kuantitatif menggunakan metode spektrofotometri UV-Vis pada 3 sampel teregistrasi dan 3 sampel tidak teregistrasi yang diambil secara acak dengan berbagai merek. Uji kualitatif formaldehid dilakukan dengan KLT menggunakan eluen terbaik etil asetat : asam asetat : metanol (5:2:3). Penetapan kadar dilakukan secara spektrofotometri UV-Vis pada panjang gelombang 554 nm. Hasil penelitian menunjukkan bahwa dari uji kualitatif 6 sampel cat kuku tersebut positif mengandung formaldehid. Kadar formaldehid pada keenam sampel tersebut adalah 0,0042% (R1), 0,0021% (R2), 0,0007% (R3), 0,0014% (TR1), 0,0006% (TR2), 0,0013% (TR3). Hasil dari penelitian ini diketahui tidak terdapat cat kuku yang beredar di kota Bekasi yang melebihi syarat kadar formaldehid yang ditetapkan oleh Badan POM RI. Kata kunci: Formaldehid, cat kuku, kromatografi lapis tipis (KLT), spektrofotometri UV-Vis

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