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All Journal Jurnal Teknik Mesin Buletin Udayana Mengabdi Jurnal Energi Dan Manufaktur TEKNIK SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Jurnal METTEK (Jurnal Ilmiah Nasional Dalam Bidang Ilmu Teknik Mesin) JOIV : International Journal on Informatics Visualization Dinamika Teknik Mesin : Jurnal Keilmuan dan Terapan Teknik Mesin INDONESIAN JOURNAL OF APPLIED PHYSICS Jurnal Teknologi Bahan dan Barang Teknik
I Dewa Gede Ary Subagia
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Aerospace Engineering Astronomy Automotive Engineering Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics

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Roboswab: A Covid-19 Thermal Imaging Detector Based on Oral and Facial Temperatures I Nyoman Gede Arya Astawa; I.D.G Ary Subagia; Felipe P. Vista IV; IGAK Cathur Adhi; I Made Ari Dwi Suta Atmaja
JOIV : International Journal on Informatics Visualization Vol 7, No 1 (2023)
Publisher : Society of Visual Informatics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/joiv.7.1.1505

Abstract

The SARS-CoV-2 virus has been the precursor of the coronavirus disease (COVID-19). The symptoms of COVID-19 begin with the common cold and then become very severe, such as those of Middle East Respiratory Syndrome (MERS) and Severe Acute Respiratory Syndrome (SARS). Currently, polymerase chain reaction (PCR) is used to detect COVID-19 accurately, but it causes some side effects to the patient when the test is performed. Therefore, the proposed "Roboswab" was developed that uses thermal imaging to measure non-contact facial and oral temperature. This study focuses on the performance of the proposed equipment in measuring facial and oral temperature from various distances. Face detection also involves checking whether the subject is wearing a mask or not. Image processing methods with thermal imaging and robotic manipulators are integrated into a contact-free detector that is inexpensive, accurate, and painless. This research has successfully detected masked or non-masked faces and accurately detected facial temperature. The results showed that the accurate measurement of facial temperature with a mask is 90% with an error of +/- 0.05%, while it was 100% without a mask. On the other hand, the oral temperature was measured with 97% accuracy and an error of less than 5%. The optimal distance of the Roboswab to the face for measuring temperature is an average of 60 cm. The Roboswab tool equipped with masked or non-masked face detection can be used for early detection of COVID-19 without direct contact with patients.
Sifat Kekuatan Tarik dari Sambungan Tunggal Komposit Anyaman Serat Jute-Polypropylene dengan Metode Resistance Welding Ni Wayan Sugiarti; Mathias Noviantoro; I Gusti Ketut Sukadana; I Dewa Gede Ary Subagia
TEKNIK Vol. 44, No. 1 (2023): May 2023
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/teknik.v44i1.41131

Abstract

Makalah ini menyampaikan hasil penelitian kekuatan tarik sambungan resistance welding (RW) dari komposit berbasis anyaman serat jute matrik polypropylene (JFRP). Metode RW dilakukan menggunakan pengaliran arus listrik pada kawat nikelin. Pada proses pengelasan untuk kawat nikelin adalah divariasikan yaitu ukuran diameter 0,3 mm dan 0,5 mm. Tujuan penelitian untuk menyelidiki kekuatan sambungan menggunakan metode RW menurut variasi diameter kawat nikelin. Pada pengujian masing-masing sampel diujikan sebanyak 5 kali pengulangan yang didasarkan pada standar ASTM D 638. Pengujian tarik dilakukan pada Universal Testing Machine (UTM) dengan cross head speed 3 mm/min, dan load cell 5 kN. Hasil penelitian menunjukkan bahwa JFRP dalam sambungan lapisan tunggal yang diikat dengan kawat nikelin berdiameter 0,5mm memiliki kekuatan tarik tertinggi dibandingkan dengan kawat nikelin berdiameter 0,3mm masing-masing adalah 213,58±0,05 MPa dan 210,34±0,05 MPa. Sementara itu, Modulus Young dari sambungan lapisan tunggal JFRP dengan diameter kawat nikelin berdiameter 0,3 mm memiliki nilai lebih tinggi dari kawat nikelin dengan diameter 0,5mm masing-masing adalah 8,16±0,05 GPa dan 8,44±0,05 GPa. Kemudian, regangan patah dari JFRP memiliki nilai yang sama 4% untuk kedua model sambungan. Kesimpulan menunjukkan bahwa pengelasan resistensi cukup menjanjikan untuk mengikat komposit termoplastik. Selain itu, diameter kawat nikelin adalah faktor penting yang mempengaruhi sifat mekanis sambungan.
PENGARUH RADIASI ULTRAVIOLET (UV) PADA PIPA KOMPOSIT JUTE-EPOKSI TERHADAP BEBAN KOMPRESI Wawan Saputra, I Gede; Adi Atmika, I.KT; Ary Subagia, I.D.G
Jurnal Teknologi Bahan dan Barang Teknik Vol 12, No 1 (2022)
Publisher : Balai Besar Bahan dan Barang Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37209/jtbbt.v12i1.233

Abstract

Pengaruh radiasi UV pada pipa berbahan komposit serat jute epoksi matriks telah diteliti. Adapun tujuan penelitian ini untuk mengamati pengaruh radiasi UV terhadap sifat mekanik (pembebanan kompresi) pipa berbahan komposit. Percobaan skala laboratorium telah dilakukan dengan membuat benda uji pipa yang terbuat dari komposit. Komposit terbuat dari 3 lapis serat jute dan matriks epoksi. Adapun pembuatan benda uji dilakukan melalui proses cetakan vakum injeksi (VIM). UV (ultraviolet) dikondisikan dengan memadukan lampu Halogen 300W, lampu UVC T5 8W, lampu bohlam reflektor 40W, dan lampu UV GNB BLB 13W sesuai standar ASTM D2166M-16. Proses penyinaran UV pada pipa komposit dilakukan selama 72 jam dengan temperatur tetap 50o C. Hasil eksperimen menunjukkan bahwa terjadi penurunan tegangan kompresi pada pipa komposit dengan perlakuan radiasi UV, rata-rata sebesar 30% terhadap kontrol. Sedangkan, mode patahan dari pipa komposit setelah pembebanan kompresi melalui analisa SEM didapatkan bahwa UV telah membuat degradasi matriks yang menyebabkan kegetasan dan kerapuhan. Kesimpulannya adalah bahwa radiasi UV berpengaruh terhadap sifat mekanik dan fisik dari pipa komposit.
TENSILE BEHAVIOR OF SINGLE ELBOW ASSEMBLY WITH RIVETS ORIENTATION ON JUTE/EPOXY COMPOSITE I.G.L, Aditya Pradnyana; I.G.K, Dwijana; I.D.G, Ary Subagia
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol. 15 No. 2 (2021): SINTEK JURNAL
Publisher : Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/sintek.15.2.81-87

Abstract

This experiment's purpose is to investigate the tension strength of the elbow joint with the variation of rivets position. The Joining was made based on jute woven fabric reinforced composite epoxy. The vacuum-assisted resin transfer molding process was employed to manufacture composites. In this joint two rivets were used in three orientations of positions such as diagonal (D), Vertical (V), and horizontal (H). In order to investigate the properties of a sample, the tensile loading was carried out. Then, the failure of samples based on the photographic method has analyzed. The test result shows that the tensile strength of joints with D orientation has the highest value compared with rivets on orientation V and H are 3.329 MPa, 2.946 MPa, dan 2.737 MPa, respectively. Additionally, the shear stress value of each rivets orientation on tangential states have D = 59.49 N/mm2, V = 47.46 N/mm2, and H = 45.35 N/mm2, respectively. It can be concluded that the rivet state orientation becomes an important factor for the tension strength of the tangential joint of the composites.
Co-Authors A. Suryawan A.H. Yuwono Adi Atmika, I.KT Alesandro Tarigan Anak Agung Istri Agung Sri Komaladewi Atmaja, I Made Ari Dwi Suta Budiana D Felipe P. Vista IV Gede Adi Yoga Saputra I Gusti Agung Kade Suriadi I Gusti Ketut Sukadana I Gusti Komang Dwijana I K. A. Atmika I Ketut Adi Atmika I Made Astika I Made Gatot Karohika I Made Putra Arya Winata I N. G. Suma Wijaya I Nyoman Gede Arya Astawa I Nyoman Suprapta Winaya I Wayan Purna Wirama I.A.N Pramadyanti I.G.A.K.C Adhi I.G.A.K.C. Adhi I.G.K, Dwijana I.G.K. Sukadana I.G.L, Aditya Pradnyana I.K. A. Atmika I.K.A. Atmika I.K.G. Wirawan I.M. Astika IGAK Cathur Adhi Mathias Noviantoro N.M.A.R. Adriani Ni Wayan Sugiarti Putu Brahmanda Sudarsana S.P.G. Gunawan Tista Tri Siswanto Kamid Wawan Saputra, I Gede Wayan Nata Septiadi