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Raihan Shodiq
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Jl. Moch. Kahfi II No. RT.13/RW.9., Srengseng Sawah, Kec. Jagakarsa, Kota Jakarta Selatan, Daerah Khusus Ibukota Jakarta 12630
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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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Analisis Security Web Login Mahasiswa Menggunakan Algoritma Two-Factor Time-Based One Time Password Alfat Yanuar Fitriyansyah; M Hazri
SAINSTECH: JURNAL PENELITIAN DAN PENGKAJIAN SAINS DAN TEKNOLOGI Vol 30 No 1 (2020): Jurnal Penelitian dan Pengkajian Sains dan Teknologi
Publisher : Institut Sains dan Teknologi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (228.793 KB) | DOI: 10.37277/stch.v30i1.725

Abstract

Pengamanan web login dengan menggunakan OTP (One Time Password) yang menghasilkan sebuahkode lewat SMS untuk otentikasi suatu aktivitas login. OTP yang dikirimkan kepada pengguna/userakan dicocokkan dengan data yang tersimpan pada sebuah database, maka yang dimana pada saatmelakukan Login pengguna/user tidak hanya akan dimintai username dan password saja sebagaipengamanan tetapi juga akan dimintai sebuah Kode OTP yang nantinya dikirimkan melalui SMS padaponsel pengguna/user. Dengan melakukan metode penelitian yang meliputi Pengumpulan Data,Analisa serta Kesimpulan maka penulis dapat menyimpulkan masalah dan solusi yang bisadiberikan.Waktu aktif untuk pengamanan login dengan OTP berbasis SMS selama satu sampai 3menit, pembatasan tersebut yang berguna untuk mempersempit waktu hacker untuk menyadap danmenyusup.
Analisa Performa Sistem Berkas Ext4 Pada Kondisi Tervirtualisasi Salman Farizy; Tommy Gunawan
SAINSTECH: JURNAL PENELITIAN DAN PENGKAJIAN SAINS DAN TEKNOLOGI Vol 30 No 1 (2020): Jurnal Penelitian dan Pengkajian Sains dan Teknologi
Publisher : Institut Sains dan Teknologi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (156.005 KB) | DOI: 10.37277/stch.v30i1.726

Abstract

Various file system that created and used by computer and operating system, so this journal is written for in depthlearning about one of the file system called ext4 on how they complete various task of file system using a benchmarkingprogram for unix in virtualized condition in virtual machine.
MEMPREDIKSI USIA DAN JENIS KELAMIN MENGGUNAKAN CONVOLUTIONAL NEURAL NETWORKS Afrizal Zein
SAINSTECH: JURNAL PENELITIAN DAN PENGKAJIAN SAINS DAN TEKNOLOGI Vol 30 No 1 (2020): Jurnal Penelitian dan Pengkajian Sains dan Teknologi
Publisher : Institut Sains dan Teknologi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (227.113 KB) | DOI: 10.37277/stch.v30i1.727

Abstract

The main objective of this study was to develop a method for estimating theage and gender of a person based on facial images, using CNN in-depthtraining that can accurately recognize age and gender. Information that isextracted can be useful in, for example, security or commercial applications.This is a difficult estimation problem, because the only information we have isa picture, that is the look of that person.The next aspect of this study I focused on incorporating architecture for ageand gender recognition to take advantage of gender-specific agecharacteristics and age-specific gender characteristics inherent in the image.This comes from the observation that sex classifications are tasks that areinherently easier than age classifications, because both fewer and fewerpotential classes and more prominent intra-gender facial variations. With thetraining of different age classifiers for each gender I found that I could improvethe performance of age classifications, even though gender classification didnot see significant results.
Rancang Bangun Alat Pembersih Bearing Menggunakan Gelombang Suara Ultrasonik Harlan Effendi; Ibrahim Newton
SAINSTECH: JURNAL PENELITIAN DAN PENGKAJIAN SAINS DAN TEKNOLOGI Vol 30 No 2 (2020): Jurnal Penelitian dan Pengkajian Sains dan Teknologi
Publisher : Institut Sains dan Teknologi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (936.147 KB) | DOI: 10.37277/stch.v30i2.771

Abstract

This device works by providing electrical waves to the Transducer with compatible frequency and power (40kHz and 60W), cavitation appear due to sound vibrations in the liquid that reach the gap in the bearing so the dirt will cleaned off the bearing. Parameters that are measured and tested is the wave generated by Arduino ProMini microcontroller, the wave that enters the amplifier, the wave received by Transducer, and result of cleaning. From testing process, it produces frequency with accuracy of 82.5% and able to drive the Transducer even though not yet at maximum power due to poor transformer quality.
PERANCANGAN ANTENA MIKROSTRIP ARRAY BERBENTUK MAWAR PATCH DENGAN PENCATUAN FEEDLINE PADA FREKUENSI WLAN 2.4 GHz DAN 5.2 GHz Mohammad Hamdani
SAINSTECH: JURNAL PENELITIAN DAN PENGKAJIAN SAINS DAN TEKNOLOGI Vol 30 No 2 (2020): Jurnal Penelitian dan Pengkajian Sains dan Teknologi
Publisher : Institut Sains dan Teknologi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (654.694 KB) | DOI: 10.37277/stch.v30i2.789

Abstract

This research discusses the design of the microstrip array antenna with the rosette patch model that works on WLAN 2.4 GHz and 5.2 GHz frequencies which are used for WIFI networks. This microstrip antenna is made using a feedline feed or direct feed with a directional radiation pattern. The initial design used Ansoft HFSS v.13. Software, then fabricated the Microstrip Antenna using a PCB with a single layer FR4 type, and consisted of a patch, substrate, and groundplane. This antenna has dimensions of 94 mm in length and 63.3 mm in width. The measurement results in Laboratorium obtained VSWR 1.6, return loss -12.817, and 31.357 impedance, at a frequency of 2.4 GHz. While at a frequency of 5.2 GHz the VSWR value is 1.292, return loss is -18,210, and impedance is 46.417.
Alat Ambulatory Blood Pressure Monitor dan Pengukur Suhu Via Aplikasi Android Ariman Ariman
SAINSTECH: JURNAL PENELITIAN DAN PENGKAJIAN SAINS DAN TEKNOLOGI Vol 30 No 2 (2020): Jurnal Penelitian dan Pengkajian Sains dan Teknologi
Publisher : Institut Sains dan Teknologi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (514.113 KB) | DOI: 10.37277/stch.v30i2.794

Abstract

ABSTRACT Hypertension is one of the serious diseases that are many people are facing these days, the absence of regular checks makes a person not aware of the state of blood pressure in his body. The solution is by having a blood pressure, pulse and body temperature measuring device that can monitor blood pressure, pulse and body temperature continuously for ± 24 hours. This tool system uses the MPX5700 pressure sensor to detect blood pressure and pulse, as a body temperature detector using a DS18B20 temperature sensor and using the Arduino microcontroller as a data processor. The measurement is made by attaching the cuff in patient arm, then pumped automatically with a certain pressure, then the measurement of blood pressure, pulse and body temperature were carried out, the results are displayed on the android device and can be printed through the printer. Keywords: hypertension; blood pressure; temperature; monitor; tool.
NodeMCU BASED START FINISH DETECTOR DESIGN Edy Supriyadi
SAINSTECH: JURNAL PENELITIAN DAN PENGKAJIAN SAINS DAN TEKNOLOGI Vol 30 No 2 (2020): Jurnal Penelitian dan Pengkajian Sains dan Teknologi
Publisher : Institut Sains dan Teknologi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (496.979 KB) | DOI: 10.37277/stch.v30i2.802

Abstract

Kemajuan teknologi tidak terlepas dari aspek kehidupan masa kini yang sudah berkembang. Dimana tujuannya adalah mempermudah tugas manusia dan ketelitian dalam bekerja. Salah satunya di dunia olahraga dayung yang lintasan perlombaan yang masih di lakukan manusia itu sendiri. Pada kesempatan kali ini akan merancang alat Detector Start Finish Berbasis NodeMCU. Alat otomatis ini bekerja dengan bantuan tombol web server dimana tombol ini yang berfungsi menghidupkan program. Penggunaan buzzer sebagai penanda mulainya pertandingan , motor servo sebagai gerbang start dan di bagian garis finish akan ada sensor ultrasnik dan sensor laseryang menunggu pemenang yang melewatinya serta cameraESP32-CAM yang menangkap gambar. Dan informasi pemenanng berupa posisi dan waktu pemenang yang akan di proses serta di sampaikan melalui NodeMCU untuk di tampilkan pada web server
ANALISIS MAKSIMILISASI KEUNTUNGAN DENGAN METODE SIMPLEX DAN PENDEKATAN METODE SOLVER PADA CV .INDOSOTEN Rezky Hidayat
SAINSTECH: JURNAL PENELITIAN DAN PENGKAJIAN SAINS DAN TEKNOLOGI Vol 30 No 2 (2020): Jurnal Penelitian dan Pengkajian Sains dan Teknologi
Publisher : Institut Sains dan Teknologi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (600.792 KB) | DOI: 10.37277/stch.v30i2.803

Abstract

The In the current era of globalization, the economic situation in Indonesia is indeed very concerning. With these conditions, many micro businesses, especially home industry businesses, have to struggle to continue carrying out product activities so that their production businesses develop. CV.Indoshoten is a small-scale company producing four main products, namely onigiri salmon flake, spicy tuna onigiri, salmon mayo onigiri and tuna mayonnaise onigiri. To maintain the continuity and development of production, steps are needed to be able to allocate raw materials and increase profits. Therefore we need an effort to use a method in determining the right combination of use of the production factors of the products made and the combination of the products produced using the linear programming model of maximization problems with the simplex method and for analysis using the solver method. The results of this study that the salmon-filled onigiri product will get a maximum profit of Rp.875,000 if the company produces 125 pieces of salmon flake onigiri and 25 pieces of salmon mayo while the tuna-filled onigiri product will get a maximum profit of Rp.626,692 if the company produces spicy tuna onigiri. 40 pcs and 107 pcs of tuna mayo. If a company has a lot of inputs that must be used for the production process and the main purpose of obtaining profits that can be used is the simplex method, whereas if the user wants to analyze variable changes so that profits remain optimal then use the solver method.
PENGEMBANGAN SIM E-GOVERNMENT PENDAPATAN DAERAH DENGAN METODE AGILE (PXP) agus suharto
SAINSTECH: JURNAL PENELITIAN DAN PENGKAJIAN SAINS DAN TEKNOLOGI Vol 30 No 2 (2020): Jurnal Penelitian dan Pengkajian Sains dan Teknologi
Publisher : Institut Sains dan Teknologi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (496.552 KB) | DOI: 10.37277/stch.v30i2.805

Abstract

Saat ini Otonomi Daerah, diberikan kewenangan yang besar kepada pemerintah daerah baik itu pemerintah kota maupun pemeritah kabupaten. Dengan demikian pemda harus mempersiapkan infrastruktur fisik , sosial ataupun infrastruktur teknologi. Pemerintah daerah rata rata sudah memiliki berbagai sistem informasi pendapatan daerah (SIMPATDA), namun masih banyak pula yang tidak melalui rencana Induk yang komprehensif dan terintegrasi. Sistem yang menghasilkan informasi antar bidang yang dibutuhkan masih menggunakan manual dengan sumber datanya yang terkadang kurang lengkap. Penulis membuat suatu penelitian tentang Sistem Informasi Manajemen E-Government Pendapatan Daerah (SIMPATDA) dengan acuannya adalah Undang-Undang No.28 Tahun 2009 tentang Pajak daerah dan Retribusi Daerah. Selain itu penulis selaku dosen ingin mengaplikasikan Metode Agile Personal Extreme Programming dengan 7 fase tahapan terdiri dari yaitu : 1.Requirements, 2.Planning, 3.Iteration, 4.Initialization, 5.Design, 6.Implementation, 7.Retrospective. Kata Kunci: SIM E-Government, Pendapatan Daerah, Agile, Personal Extreme Programming
Analisis Kestabilan Statik Matra Longitudinal Platform UAV Kolibri 08-V2 Priska Windayani; Hartono Hartono
SAINSTECH: JURNAL PENELITIAN DAN PENGKAJIAN SAINS DAN TEKNOLOGI Vol 30 No 2 (2020): Jurnal Penelitian dan Pengkajian Sains dan Teknologi
Publisher : Institut Sains dan Teknologi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (658.939 KB) | DOI: 10.37277/stch.v30i2.824

Abstract

The aspect of stability is one of the important things that must be considered in UAV design. For that, it is necessary to calculate and analyze the static stability of the longitudinal matrix that works on the Kolibri 08-V2 UAV Platform using Digital Datcom software. The things that are analyzed are the influence of velocity variation, central of gravity positions and angle of attack variations on aerodynamic parameters, in this case CL, CD, and Cm, as well as the stability of the UAV Kolibri 08-V2 platform in a longitudinal dimension. Longitudinal analysis of static stability on the Kolibri 08-V2 UAV platform was performed using Digital Datcom software. The things that are analyzed are the aerodynamic parameters CL, CD, and Cm which occur with variations in velocity, several positions of the center of gravity, and variations in the angle of attack with several flying heights. From the results of calculations using Digital Datcom software, it can be concluded that speed has no effect on CL, CD, and Cm, cg affects Cm, angle of attack (α) affects CL, CD, and Cm, and the Kolibri 08-V2 UAV platform meets the criteria. the stability of the static pitch (Cmα <0), so that this plane can be said to be statically stable in the longitudinal dimension.

Page 11 of 29 | Total Record : 289

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