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All Journal Jurnal Fisika FLUX JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) INDONESIAN JOURNAL OF APPLIED PHYSICS Jurnal Teori dan Aplikasi Fisika Texere

Irwan Irwan

Politeknik STTT Bandung

Author-ID : 2478283

Astronomy Chemistry Earth & Planetary Sciences Education Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Physics

Published : 6 Documents Claim Missing Document

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Articles

Metode Pengukuran Kapasitansi Dengan Menggunakan Mikrokontroler Arduino Uno Valentinus Galih Vidia Putra; Andrian Wijayono; Endah Purnomosari; Ngadiono Ngadiono; Irwan Irwan
JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) Vol 3 No 1 (2019): JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) - May 2019
Publisher : Program Studi Pendidikan Fisika STKIP Nurul Huda

RC circuit (Resistor-Capacitor) is an electric circuit that has a combination of resistor and capacitor components which are installed either series or parallel. This research was conducted to measure the capacitance of two capacitors with different capacitances with only using one resistor. This study aims to compare the capacitance both experimentally (using data acquisition systems) and theoretically. Capacitance measurements were carried out experimentally using Arduino Uno and at a maximum voltage of 5 volts. In this research, it has been successfully determined the charge capacitance of the capacitors, both in experiment and theory. It has been found the correlation of the results between experiment and theory (the value of R2 in charging and discharging process is greater than 0.95).

Studi Penentuan Kalor Jenis Air dan Larutan Garam Menggunakan Mikrokontroler Arduino Uno Valentinus Galih Vidia Putra; Andrian Wijayono; Endah Purnomosari; Ngadiono Ngadiono; Irwan Irwan
JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) Vol 3 No 2 (2019): JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) - November 2019
Publisher : Program Studi Pendidikan Fisika STKIP Nurul Huda

This research was conducted to determine specific heat of pure water and salt solution using the calorimeter measurement method based on the Arduino Uno microcontroller. The salt solution and pure water solution were heated by the heating wire with 2.4 A and 0.54 Ω. The temperature of the pure water and the salt solution was measured using the Arduino Uno microcontroller and DS18B20 temperature sensor. In this study, the Cv of pure water and salt solution has been found.

Penerapan Fisika Komputasi dengan MATLAB/Simulink pada Pemodelan Infeksi Wabah COVID-19 di Indonesia melalui Modifikasi Persamaan Differensial Bernoulli Valentinus Galih Vidia Putra; Andrian Wijayono; Juliany Ningsih Mohamad; Irwan Irwan; Cahaya Rosyidan
Jurnal Teori dan Aplikasi Fisika Vol 8, No 2 (2020): Jurnal Teori dan Aplikasi Fisika
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtaf.v8i2.2513

The application of physics, in particular, the topic of differential equations is commonly used in mathematics, physics, engineering, and various other sciences to explain a phenomenon in a system, to produce a form of simulation and prediction of a fairly good mathematical equation is needed. This paper examines the use of MATLAB / Simulink to assist in modeling the solution of the differential equation problems by providing a case of mathematical modeling in the analysis of the COVID-19 plague in Indonesia in 2020 with the modification of the Bernoulli equation. In this study, it can be concluded that MATLAB / Simulink can be used to solve differential equation problems with Bernoulli's modification in the case of COVID-19 plague modeling quite accurately.

Pemodelan Pengaruh Nomor dan Kecepatan Pengantar Benang Terhadap Kekuatan Benang Ring Spinning Menggunakan Mekanika Klasik dan Regresi Multivarian Nonlinear Valentinus Galih Vidia Putra; Andrian Wijayono; Irwan Irwan; Totong Irwan; Cahaya Rosyidan
Jurnal Fisika FLUX Vol 16, No 2 (2019): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

The application of theoretical physics can be found in textile processing such as yarn manufacturing process. The aim of this research is to determine and to develop a new model to predict the yarn strength of ring spun yarn influenced by the yarn count number (in unit m/g) as well as the delivery speed of yarn in bobbin (vf). In this research we have found a new model to predict the yarn strength on ring spinning machine based on classical mechanics as well as statistical method using nonlinear multivariate regression .According to this research, we have established that both classical mechanics and nonlinear multivariate regression can be applied and developed to predict yarn strength as a function of yarn delivery speed and yarn count number both theoretically and experimentally.

PEMBUATAN DAN KARAKTERISASI KAIN WASTRA NUSANTARA MOTIF PA’ SEKONG KANDAURE KHAS TORAJA MENGGUNAKAN MESIN RAJUT DATAR STOLL CMS 530 HP Azizah Nur Lathifah; Irwan Irwan; Resty Mayseptheny Hernawati
Texere Vol 21, No 1 (2023): Texere Volume 21 Nomor 1 Tahun 2023
Publisher : Politeknik STTT Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53298/texere.v21i1.04

Indonesia sudah dikenal dengan keberagaman budaya yang dimiliki karena kondisi masyaratnya yang majemuk. Bentuk keberagaman budaya yang ada salah satunya adalah wastra nusantara, yang dapat diartikan sebagai kain tradisional yang dihasilkan di wilayah Indonesia yang mengandung filosofi atau makna, contohnya seperti batik, tenun ikat, dan songket. Setiap wastra nusantara memiliki ciri khasnya masing-masing, salah satunya adalah motif Pa’sekong Kandaure yang berasal dari Kota Toraja. Pembuatan dari wastra nusantara motif Pa’sekong Kandaure umumnya menggunakan proses pertenunan. Sehingga pada penelitian ini bertujuan untuk mengembangkan wastra nusantara yang dapat menyerupai motif Pa’sekong Kandaure dengan proses pembuatan menggunakan Mesin Rajut Datar Stoll CMS 530 HP. Penelitian ini dilakukan dengan memvariasikan jeratan jacquard yaitu jacquard net, stripe, dan twill dengan bahan baku benang kapas combed Ne1 20/2 berwarna biru dan hitam. Proses yang dilakukan dalam pengembangan motif tersebut sampai dengan tahapan pembuatan sampel kain. Hasil sampel kain tersebut akan diuji CPI, WPI, uji ketebalan kain, uji gramasi, uji daya tembus udara, uji tahan jebol kain, dan uji stabilitas dimensi.wastra nusantara motif Pa’sekong Kandaure dapat dibuat menggunakan Mesin Rajut Datar Stoll CMS 530 HP, jenis jeratan jacquard yang dapat memproduksi motif tersebut, yaitu jacquard net, stripe, dan twill. Pengembangan dari struktur jacquard yang menyerupai pada proses perajutan yaitu jacquard stripe.sifat kain rajut dengan jenis Jacquard net memiliki spesifikasi ketebalan kain 1,5 mm, gramasi kain 481,5 g/m2, dan daya tembus udara 54,1 cm3/s/cm2 dan tahan jebol 13,78 kgf. Sifat kain rajut dengan jenis Jacquard stripe memiliki spesifikasi ketebalan kain 1,2 mm, gramasi kain 310,1 g/m2, dan daya tembus udara 111 cm3/s/cm2 dan tahan jebol 5,89 kgf. sifat kain rajut dengan jenis Jacquard twill memiliki spesifikasi ketebalan kain 1,7 mm, gramasi kain 587,7 g/m2, dan daya tembus udara 32,1 cm3/s/cm2 serta tahan jebol 10,14 kgf.

A Study of Anti-Radiation Weaving Fabric with Plasma Corona Treatment Valentinus Galih Vidia Putra; Irwan Irwan; Ichsan Purnama; Juliany Ningsih Mohamad; Yusril Yusuf
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 11, No 1 (2021): April
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/ijap.v11i1.40833

In this research, Carbon black particles were applied on the woven fabric by the knife coating technique and pretreatment using plasma corona discharge to build-up conductive cotton-polyester (CVC 50%) fabric electromagnetic shielding material. This paper describes the making of anti-radiation weaving fabric using plasma technology. The anti-radiation patch was developed by first modifying the textile fabric's surface using atmospheric pressure plasma technology using tip-cylinder electrode configuration. The plasma corona discharge was generated using high voltage electricity with asymmetrical electrodes (tip and cylinder). The treated weaving fabric using plasma was then coated with carbon black ink. This research indicates that an anti-radiation weaving fabric was successfully shielded electromagnetic radiation from an electronic device.

Co-Authors Azizah Nur Lathifah Cahaya Rosyidan Endah Purnomosari Mohamad, Juliany Ningsih Ngadiono Ngadiono Purnama, Ichsan Resty Mayseptheny Hernawati Totong Irwan Valentinus Galih Vidia Putra Valentinus Galih Vidia Putra Wijayono, Andrian Yusril Yusuf

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