Article Per Year (5 Year)
p-Index From 2021 - 2026
4.13
P-Index
This Author published in this journals
All Journal Indonesian Journal of Geography Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics POSITRON Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Jurnal Sains dan Teknologi Komunikasi Fisika Indonesia TELKOMNIKA (Telecommunication Computing Electronics and Control) Indonesian Journal of Electrical Engineering and Informatics (IJEEI) Journal of Aceh Physics Society Jurnal Litbang Industri JOURNAL ONLINE OF PHYSICS Jurnal Fisika FLUX Proceeding of the Electrical Engineering Computer Science and Informatics Jurnal Ilmiah Pertanian JMPM (Jurnal Material dan Proses Manufaktur) Jurnal Pengabdian UntukMu NegeRI Journal of Research and Technology JURNAL PHOTON Indonesian Physical Review Science, Technology, and Communication Journal
Romi Fadli Syahputra
Department Of Physics, Faculty Of Mathematics, Natural Sciences & Health, Universitas Muhammadiyah Riau, Pekanbaru, Indonesia
Religion Agriculture, Biological Sciences & Forestry Astronomy Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Nursing Physics Social Sciences

Published : 38 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 38 Documents
Search

 1   2   3   4 
ANALISIS KOMPENSASI DISPERSI MENGGUNAKAN PENGUAT RAMAN PADA JARINGAN WDM (WAVELENGTH DIVISION MULTIPLEXING) DALAM KOMUNIKASI SERAT OPTIK Roby Ikhsan; Romi Fadli Syahputra; Saktioto Saktioto
Komunikasi Fisika Indonesia Vol 15, No 2 (2018)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (130.974 KB) | DOI: 10.31258/jkfi.15.2.88-92

Abstract

The discovery of optical fiber cause widespread revolution of communication system. Optical fiber communication has excellency on data transmission speed, security, flexibility, and broadly bandwidth. The applying of WDM network can broaden the bandwidth so that the transmission performance becomes more splendid. Although some factors such as dispersion, attenuation, and scattering can hinder the performance of fiber optic on sending data. Moreover dispersion can wreck data and spread pulse as it travels alongs fiber so that causing interference. There is some methods  of dispersion compensation. In this paper, Fiber Raman Amplifier is used on WDM network to strengthen signal which is sent to detector. This research utilize simulation approachment  with various bandwidth and length fiber. The results show lowest BER value and highest Q-factor at bandwidth frequency of 30 GHz and fiber length of 20 km.
Optimizing Design of Core-clad Width for Single Mode Fiber with Zero Dispersion Shift Toto Saktioto; Doni Basdyo; Yoli Zairmi; Romi Fadli Syahputra; Okfalisa Okfalisa; Wresni Anggraini; Syamsudhuha Syamsudhuha
Proceeding of the Electrical Engineering Computer Science and Informatics Vol 6: EECSI 2019
Publisher : IAES Indonesia Section

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eecsi.v6.2006

Abstract

Fiber optics have become a vital role in telecommunication technologies with many benefits, i.g. high speed transmission, non-electromagnetic interference and low energy consumption. An excellent single mode fiber (SMF) must provide a low attenuation and dispersion which occurs at same wavelength, i.e. 1550 nm. But, in silica based SMF, this property cannot be achieved in a bulk form. Meanwhile, the direct experiment is really not the best choice. Therefore, a simulation fiber design take a crucial role into account for obtaining zero dispersion shift. We design SMF geometry with zero dispersion by resizing the width of core and cladding. This design consists of inner and outer core-clad profile. We also provide several width boundaries for matching the lowest dispersion to the lowest attenuation in silica fiber-based. Moreover, the results shows that dispersion property of the design is suitable for long-haul optical communication systems.
PEMANFAATAN KARBON AKTIF TEMPURUNG KELAPA SEBAGAI CARBON BLACK TINTA SERBUK Adila Fitri Yani Yani; Viviana Lubis; Delovita Ginting; Romi Fadli Syahputra
JOURNAL ONLINE OF PHYSICS Vol. 8 No. 2 (2023): JOP (Journal Online of Physics) Vol 8 No 2
Publisher : Prodi Fisika FST UNJA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jop.v8i2.20503

Abstract

Karbon aktif tempurung kelapa berpotensi sebagai biomassa untuk bahan baku carbon black tinta bubuk karena ketersediannya yang berlimpah. Tujuan penelitian ini adalah menghasilkan tinta serbuk (toner) yang berkualitas baik untuk pengaplikasian printer laser. Proses fabrikasi tinta serbuk terdiri atas tahap pencampuran dengan bubuk besi, polimerisasi dan tahap pengaplikasian. Tahap pencampuran dengan fraksi massa arang aktif CBS-1 (60:40), CBS-2 (40:60), CBS-3 (80:20) dengan bubuk besi. Tahap polimerisasi dilakukan dengan pencampuran styrene acrylic dengan serbuk karbon. Pencampuran dilakukan dengan menggunakan hot plate pada suhu 80.5°C kecepatan 300 rpm selama 60 menit. Proses pencucian dengan menggunakan deionisai water dan didiamkan selama 24 jam. Hasil endapan disaring menggunakan kertas saring wattman. Pengeringan dilakukan selama 24 jam agar mendapatkan polimerisasi tinta bubuk yang sempurna. Setelah kering, dilakukan penghalusan tinta serbuk dengan menggunakan mortar. Hasil pengujian kerapatan tinta serbuk didapatkan nilai yang terkecil terdapat pada sampel CBS-4 0,83 gr/cm3 sedangkan yang terbesar terdapat pada sampel CBS-3 0,88 gr/cm3. Hasil pengujian morfologi dengan scanning electron microscopy (SEM) memperlihatkan tinta serbuk yang relatif homogen. Hasil analisis citra didapatkan pada sampel CBS-3 menunjukkan hasil kode warna yang memiliki elemen hitam dan perbandingan tinta serbuk yang paling melekat. Hasil pengujian PSA menunjukkan partikel terkecil 0.115 µm, partikel terbesar 592.387 µm.
ANALISIS TINGKAT KEMATANGAN BUAH SAWIT DENGAN INJEKSI TEGANGAN SEARAH Dino Yanuardi; Saktioto Saktioto; Romi Fadli Syahputra; Defrianto Defrianto; Yan Soerbakti
Komunikasi Fisika Indonesia Vol 20, No 2 (2023)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jkfi.20.2.109-114

Abstract

Palm fruit is Indonesia's main communiqué as the largest foreign exchange contributor processed into crude palm oil (CPO). However, the quality of CPO that will be produced is influenced by the right level of maturity of palm fruit so as not to cause losses from the processor. Losses from the palm fruit processing can be overcome using a method that can determine the maturity level of the palm fruit, one of which is by injecting the voltage in the direction of the palm fruit. The purpose of direct voltage objection to the function of time in the palm fruit is to obtain a voltage response relationship to the content of yield, moisture content and free fatty acid (ALB) in the palm fruit. In this study, palm fruit was classified into 4 levels of maturity, namely unripe, almost ripe, ripe and overripe given direct voltage injection of 9 Volts for 1 minute with 3 repetitions using four electrodes arranged parallel to obtain an electrical voltage response with an electrode diameter of 1.4 mm. The distance between electrodes was chosen to be 4 – 6 mm from stainless steel materials, and the depth of the electrode to the palm fruit is 3 – 5 mm. Palm fruit was injected with electrical voltage and obtained the value of voltage response, electric current, resistivity and power of each level of maturity. The electrical information obtained will explain the yield content, water content and ALB in palm fruit in accordance with the classification of ripeness. The results of the study obtained, that the palm fruit is said to ripen when it has a voltage response value of 0.586 – 0.765 V, electric current 385 – 404.9 μA, resistivity 40.197 – 54.523 Ωm, and power 0.238 – 0.299 mW. The results showed that the maturity level of palm fruit based on its chemical content affects the properties of electricity.
The Analysis Of Micromechanic On Creating Of Gypsum Board Strengthened By Bintaro Fruit Fiber (Cerbera Manghas) With 3d Orientation Tri Adelia; delovita vita ginting; Romi Fadli Syahputra
Al-Fiziya: Journal of Materials Science, Geophysics, Instrumentation and Theoretical Physics AL-FIZIYA JOURNAL OF MATERIALS SCIENCE, GEOPHYSICS, INSTRUMENTATION AND THEORETICAL PHYSICS VOL.5, N
Publisher : Physics Study Programme, Faculty of Science and Technology UIN Syarif Hidayatullah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/fiziya.v5i2.29783

Abstract

This research succeeded in modifying the manufacture of gypsum board with the addition of natural fiber, namely bintaro fruit with the 3D orientation arrangement method. The raw materials for this research are gypsum flour and Bintaro fruit fiber as a matrix and filler. Bintaro fruit fiber previously carried out an alkalization process where the fiber was soaked in a solution of NaOH and distilled water for 24 hours. The manufacture of composites using the ratio of the matrix mass fraction and the filler mass fraction is as follows 100: 0, 99: 1, 98: 2 and 97: 3. The characterizations carried out include density test, moisture content test, flexural strength test and micromechanical analysis. Gypsum board composite based on micromechanical calculations resulted in the highest density value in the control sample, in the best density value was at the filler fraction of 3%, the best moisture content value in the control sample, the flexural strength test value the best of the control sample, but the filler fraction is 3% of the sample with the best fracture resistance. 3D orientation in theory and practice has fulfilled the principle that it is able to increase the physical and mechanical value of gypsum board.
Biokomposit Papan Partikel diperkuat Serat Alam Sabut Kelapa dan Tempurung Kelapa dan matriks epoksi Delovita Ginting; Romi Fadli Syahputra; Wirdatul Jannah
JMPM (Jurnal Material dan Proses Manufaktur) Vol 7, No 1 (2023): Juni
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.v7i1.18375

Abstract

Papan partikel serat alami (biokomposit) dapat dijadikan alternatif pengganti material konvensional karena ramah lingkungan, sumber terbarukan dan sifatnya yang dapat terurai secara alami. Penelitian ini menyajikan studi tentang karakterisasi mekanik dan fisis papan partikel polimer diperkuat serat alam yaitu sabut kelapa dan tempurung kelapa. Variabel tetap dalam penelitian ini adalah jumlah fraksi matriks yaitu resin eposki. Variabel fraksi massa penyusun papan partikel dalam penelitian ini yaitu sabut kelapa:tempurung kelapa :epoksi adalah PP1 (30:0:70), PP2 (22,5:7,5:70), PP3 (15:15:70), PP4 (7,5:22,5:70), dan PP5 (0:30:70). Papan partikel diuji kelenturannya menggunakan mesin Universal Testing Machine mengacu pada ASTM D 7-90-03, ketangguhan impak sampel menggunakan mesin Impact Tester mengacu pada ASTM D 6110. Sampel diuji kerapatan dan pengembangan tebalnya mengacu SNI 03-2105-2006. Hasil pengujian sampel menunjukkan nilai kerapatan optimum pada sampel PP3 yaitu sebesar 1,05 g/cm3 dengan sampel diperkuat sabut kelapa dan tempurung kelapa. Hasil pengujian nilai uji ketangguhan impak optimum pada sampel PP5 yaitu sebesar 3.20 J/cm2 dan hasil pengujian nilai uji kuat lentur optimum pada sampel PP5 yaitu 382,29 Kgf/cm2 dengan sampel diperkuat tempurung kelapa. Natural fiber particle board (biocomposite) can be used as an alternative to conventional materials because it is environmentally friendly, a renewable source and is naturally biodegradable. This research presents a study on the mechanical and physical characterization of natural fiber reinforced polymer particle board, namely coconut coir and coconut shell. The fixed variable in this study was the number of matrix fractions, namely epoch resin. The variable mass fraction of the particle board in this study was coconut coir:coconut shell:epoxy was PP1 (30:0:70), PP2 (22,5:7,5:70), PP3 (15:15:70), PP4 (7,5:22,5:70), and PP5 (0:30:70). Particle board was tested for flexibility using the Universal Testing Machine referring to ASTM D 7-90-03, the impact toughness of the samples using the Impact Tester machine referring to ASTM D 6110. The samples were tested for density and thickness expansion referring to SNI 03-2105-2006. The results of the sample testing showed that the optimum density value for the PP3 sample was 1.05 g/cm3 for the reinforced coconut coir and coconut shell samples. The test results for the optimum impact toughness test value on the PP5 sample were 3.20 J/cm2 and the test results for the optimum flexural strength test value on the PP5 sample were 382.29 Kgf/cm2 with the coconut shell reinforced sample.
Simplified Kinetic Model of Heart Pressure for Human Dynamical Blood Flow Saktioto Saktioto; Defrianto Defrianto; Andika Thoibah; Yan Soerbakti; Romi Fadli Syahputra; Syamsudhuha Syamsudhuha; Dedi Irawan; Haryana Hairi; Okfalisa Okfalisa; Rina Amelia
Indonesian Journal of Electrical Engineering and Informatics (IJEEI) Vol 11, No 3: September 2023
Publisher : IAES Indonesian Section

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52549/ijeei.v11i3.3473

Abstract

The blood flow that carries various particles results in disturbed physical flow in the heart organ caused by speed, density, and pressure. This phenomenon is complicated resulting in a wide variety of medical problems. This research provides a mathematical technique and numerical experiment for a straightforward solution to cardiac blood flow to arteries. Finite element analysis (FEA) is used to study and construct mathematical models for human blood flow through arterial branches. Furthermore, FEA is used to simulate the steady two-dimensional flow of viscous fluids across various geometries. The results showed that the blood flow in the carotid artery branching is simulated after the velocity profiles obtained are plotted against the experimental design. The computational method's validity is evaluated by comparing the numerical experiment with the analytical results of various functions.
A novel approach for automated rhinoceros beetle control in oil palm replanting: pineapple peel-derived pheromone trap Lailatul Munawaroh; Shabri Putra Wirman; Neneng Fitrya; Romi Fadli Syahputra; Novia Gesriantuti
Jurnal Ilmiah Pertanian Vol. 20 No. 3 (2023): Jurnal Ilmiah Pertanian
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/jip.v20i3.15857

Abstract

Oil palm (Elaeis guineensis Jacq) is a crucial plant for Indonesia's economy, serving as a major non-oil foreign exchange earner. A significant pest affecting oil palm cultivation, especially during replanting, is the rhinoceros beetle (Oryctes rhinoceros L.). Attractant pheromones, derived from pineapples, contain volatile compounds that attract insects. This research aims to develop an automated rhinoceros beetle trap equipped with an automatic pheromone spray system utilizing natural peel pineapple extract. The analysis includes tests for fluid density, spray distribution, and normality. The fluid density of the sample closely resembles that of water (1 g/cm³). Spray distribution results indicate particle sizes (60-112 μm) larger than airborne aerosols (0.001-50 μm). Kolmogorov-Smirnov normality tests reveal mostly normal data distribution, with minor deviations. Overall, this trap exhibits promise as an effective solution for rhinoceros beetle control in oil palm cultivation.
Perancangan dan Simulasi Sensor Volume Zat Cair berbasis Metamaterial Rektangular Syahputra, Romi Fadli; Aisah, Nurul; Ginting, Delovita; Yana, Debi; Husna, Ropiqotul; Fitrya, Neneng; Iwantono, Iwantono; Saktioto, Saktioto
POSITRON Vol 13, No 2 (2023): Vol. 13 No. 2 Edition
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Univetsitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/positron.v13i2.69410

Abstract

Pengukuran volume zat cair yang sensitif dapat dicapai menggunakan alat ukur atau sensor. Akan tetapi sensor volume zat cair tidak banyak mengembangkan, padahal pengukuran volume berdampak langsuang pada  nilai ekonomis, keberhasilan penelitian ilmiah,  dan kemanjuran dosis obat. Penelitian yang telah dilakukan hanya sebatas pada pengukuran pada kenaikan permukaan zat cair  dalam kenaikan tandon. menggunakan sensor fotodioda. Metamaterial telah banyak dikembangakan sebagai sistem sensor yang sensitif karena berbasis gelombang elektromagnetik, namun belum spesifik mengkajinya sebagai sensor volume zat cair. Tujuan penelitian ini adalah untuk merancang dan menyimulasikan penggunaan sensor metamaterial yang sensitif dalam pengukuran volume zat cair.  Sensor didesain dengan prinsip split ring resonator berbentuk rektangular (SRR-R) yang terdiri  dari cincin logam tembaga dan substrat FR4-Epoxy. Sensor SRR-R disimulasikan pada rentang frekuensi 350-850 MHz untuk mendeteksi perubahan volume zat cair (aquades, air tawar dan etanol) dari 5 - 44 ml. Hasil simulasi menunjukan terjadinya pergeseran frekuensi resonan spektrum S21 yang  jelas untuk masing-masing zat cair. Pergeseraan frekuensi resonan untuk sampel aquades terjadi pada frekuensi 403 – 527 MHz, air tawar 403 – 528 MHz, dan etanol 60 – 783 MHz. Distribusi medan E dan medan H menunjukan nilai maksimum sebesar 18662 V.  dan 43771 A. . Karakteristik kurva linier terjadi dalam rentang volume 12-44 ml untuk semua sampel zat cair. Sensor metamaterial SRR-R berhasil disimulasikan untuk mendeteksi perubahan volume zat cair dengan sensitivitas pengukuran aquades -1.3999 MHz/ml, air tawar -2.6833 MHz/ml, adan etanol -3.5685 MHz/ml.
Peningkatan Kinerja Bio-Baterai Nanas Dengan Penambahan Pasta Aki Bekas dan Natrium Benzoat Fitrya, Neneng; Wirman, Shabri Putra; Dalimunthe, Latipa Hannum; Welly, Indah Sri; Syahputra, Romi Fadli
POSITRON Vol 13, No 2 (2023): Vol. 13 No. 2 Edition
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Univetsitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/positron.v13i2.70052

Abstract

Telah dilakukan penelitian mengenai pengaruh variasi penambahan aki dan natrium benzoat dari elektrolit kulit nanas terhadap peningkatan kinerja biobaterai. Penelitian ini bertujuan untuk mengetahui pengaruh variasi penambahan aki dan natrium benzoat dalam meningkatkan kinerja biobaterai dari kulit nanas sebagai elektrolit. Variasi campuran yang diukur yaitu elektrolit kulit nanas murni, elektrolit kulit nanas murni ditambah aki dan leektrolit kulit nanas murni ditambah aki ditambah natrium benzoat dengan pasangan elektroda yang digunakan yaitu Cu-Zn dan Al-Zn serta waktu penurunan pada elektrolit membuktikan tingkat maksimum kinerja dari biobaterai. Pengukuran karakteristik elektrik menggunakan lampu LED. Tegangan maksimum dihasilkan oleh variasi elektrolit kulit nanas murni dengan penambahan aki dan natrium benzoat dengan tegangan maksimum yaitu 8,5 V dan arus maksimum 9.50 mA serta daya maksimumnya 96,2 mW serta penurunan nilai tegangan dan arus selama 7 hari menghasilkan tegangan minimum 3,6 V dan arus minium 1,40 mA serta daya minimum sebesar 50,4 mW. Hal ini membuktikan bahwa penambahan aki dan natrium benzoate mampu meningkatkan kinerja biobaterai dari kulit nanas dan jumlah hari mempengaruhi kinerja dari biobaterai.
Co-Authors -, Yeeri Badrun Adila Fitri Yani Yani Ahmad Nurhuda Aisah, Nurul Andika Thoibah Andri Saputra Anggraini, Wresni Anggreani, Selvia Anita, Sofia Ariyani Ayu Risti Candini Basdyo, Doni Candini, Ayu Risti Dadang Syarif Sihabudin Sahid Dalimunthe, Latipa Hannum Dedi Irawan Dedi Irawan Defrianto Defrianto Delovita Ginting, Delovita Dino Yanuardi Doni Basdyo Elsie Erman Taer Fitra Perdana Fitri, Ade Haryana bin Mohd Hairi Haryana Hairi Haryana Hairi Hikma, Nurfi Husna, Ropiqotul Ismail, Noor Maizura Ismaliyah, Dhea ISRAWATI HARAHAP Iwantono Iwan Barnawi Izzah, Ramy Fitrah Khaikal Ramadhan Kusmawati, Intan Lailatul Munawaroh Laras Sita Widara Leli Nurhamiyah Lubis, Viviana Mesra Sania Moh Danil Hendry Gamal Mubarak Mubarak Neneng Fitrya Nopripa Herlina Novia Gesriantuti Nurhamiyah, Leli Okfalisa Okfalisa Okfalisa Okfalisa Okfalisa Okfalisa Okfalisa Okfalisa Okfalisa Okfalisa Okfalisa Okfalisa Okfalisa, Okfalisa Piza Piza Piza, Piza Prastiwi, Adila Pramudiah Rachmawati Rachmawati Rezki, Yona Purnama Riad Syech Ridho Kurniawan Rifardi Rina Amelia Rismadani Haryanti Roby Ikhsan Ros Meri S. P. Dewi Saktioto Saktioto Sasmita Sasmita Shabri Putra Wirman Siti Hardiyanti Soerbakti, Yan Sri Fitria Retnawaty Sri Mulyani Syamsudhuha Syamsudhuha Tri Adelia Vepy Asyana Viviana Lubis Viviana Lubis Wahyu Candra Welly, Indah Sri wirdatul jannah Wresni Anggraini Wulandari, Surya Yan Soerbakti Yan Soerbakti Yan Soerbakti Yana, Debi Yani, Adila Fitri Yoli Zairmi Yulia Fitri Yunita I. Lubis Zairmi, Yoli Zamri, Zamri Zulkarnain Zulkarnain