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All Journal Jurnal Teknologi Jurnal Pengabdian Kepada Masyarakat Sakai Sambayan Jurnal Mechanical Jurnal Ilmiah Teknik Mesin Turbo : Jurnal Program Studi Teknik Mesin Journal of Engineering and Scientific Research (JESR) International Journal of Aviation Science and Engineering Journal of Innovation and Technology Buguh: Jurnal Pengabdian Kepada Masyarakat Jurnal Sains dan Teknologi Journal of Applied Science, Engineering and Technology (J. ASET) Seminar Nasional Insinyur Profesional (SNIP) Jurnal Polimesin Nemui Nyimah
A.Yudi Eka Risano
Department Of Mechanical Engineering, Faculty Of Engineering, Universitas Lampung Bandar Lampung, 35145, Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Dentistry Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Transportation Veterinary Other

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PEMANFAATAN CAMPURAN ZEOLIT DAN FLY ASH BATUBARAYANG TELAH DIAKTIVASI FISIK TERHADAP AKSELERASI MESIN SEPEDA MOTOR 4-LANGKAH Herry Wardono; Ahmad Yudi Eka Risano; Adi Ernadi
TURBO [Tulisan Riset Berbasis Online] Vol 7, No 1 (2018): Juni 2018
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (506.316 KB) | DOI: 10.24127/trb.v7i1.713

Abstract

Energy consumption in Indonesia is quite high, almost 96% is supplied from fossil fuel ( crude oil 48%, gases 18%, and coal 30%). From the total of energy consumption, it can be seen that almost 50% is gasoline. Thus, it is necessary to attain a certain aim in saving fossil fuel consumption. One of the ways is the utilization of zeolite and coal fly ash mixture as engine air filter. The mixture of zeolite and coal fly ash have a specific ability to trap nitrogen gases and water vapor in air, so that only oxygen enters the combustion chamber. Thus, the combustion process reaches the optimal condition and engine performance works better. Before applying, zeolite and fly ash were mixed with the comparisons of zeolite 0% : fly ash 100%, zeolite 25% : fly ash 75%, zeolite 50% : fly ash 50%, zeolite 75% : fly ash 25%, and zeolite 100% : fly ash 0%. The mixture of zeolite and fly ash was made in the form of pellet and activated physically within the temperature of 100 ºC (naturally), 150 ºC, 175 ºC, 200 ºC, and 225 ºC. Wheres various mass filter used were 50% (13,75 grams), 75% (20,62 grams) and 100% (27,50 grams). The pellets were arranged resemble a filter and place on the case of engine air filter. The purpose of this testing is to find out the effect of temperature activation and the filter mass variations as well as the composition of zeolite and fly ash mixture toward the performance of four step gasoline engine in acceleration testing. The best acceleration achieved is 12,61% (2,41 seconds faster ) taken from the test using filter of Z50:F50 mixture, with mass variation of 100% within temperature of 225 °C.Keywords: Filter of zeolite and coal fly ash,air adsorbent, engine acceleration.
Perkembangan dan Aplikasi Biomaterial dalam Bidang Kedokteran Modern: A Review Irza Sukmana; Ahmad Yudi Eka Risano; Mahruri Arif Wicaksono; Rizal Adi Saputra
INSOLOGI: Jurnal Sains dan Teknologi Vol. 1 No. 5 (2022): Oktober 2022
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v1i5.1037

Abstract

The medical device market in Indonesia experiences growth every year, Indonesia implements imports of medical devices. Indonesia has many experts in the field of medical devices and their production processes, at university, research institutions and other government institutions. The government provides multi-year grants for research on biomaterials and medical devices. Materials to make medical devices are called biomaterials. Biomaterials can be defined as synthetic materials that interact directly with living bodies in the form of implants or as medical devices. Biomaterials can function to repair, replace, support and or restore parts of the human body. Biomaterials have undergone many developments, types of biomaterials, advanced biomaterials adapted to applications in the medical field. Biomaterials can be in the form of metals, ceramics, polymers or composites with research that continues to advance and be developed. This paper aims to highlight types and application of biomaterials in the medical field as well as the potential application of advanced biomaterials in the future.
The Effect of the use of Silica Sand Before and After Physical Activation on Acceleration of 4-Step Gasoline Motorcycle Engine Akhmad Riszal; Sandy Dwi Hardin; Herry Wardono; M. Dyan Susila ES; A. Yudi Eka Risano
Journal of Engineering and Scientific Research Vol. 4 No. 1 (2022)
Publisher : Faculty of Engineering, Universitas Lampung Jl. Soemantri Brojonegoro No.1 Bandar Lampung, Indonesia 35141

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (925.97 KB) | DOI: 10.23960/jesr.v4i1.98

Abstract

This research was conducted with the aim of knowing the Effect of using silica sand before and after physical activation on the acceleration of a 4-stroke gasoline motorcycle engine. This research was conducted by testing the acceleration 0 – 80 km/hour and 40 – 80 km/hour with variations in the composition of tapioca in the pellet mixture (1%, 2%, and 3%) and variations in temperature activation (150?C, 200?). C, and 250?C). The silica sand pellets used in this study were 10 mm in diameter with a thickness of 3 mm, which had been activated for 60 minutes. The results showed that the use of silica sand had an effect on the acceleration of a 4-stroke gasoline motorcycle. The best composition of silica sand pellets occurs in the amount of tapioca 3% and with an activation temperature of 250?C, which can increase the acceleration by 12.45% at an acceleration of 0 – 80 km/hour.
Optimalisasi Condition Based Maintenance (CBM) untuk Meningkatkan Keandalan Peralatan Critical Upk Sebalang dengan Penerapan Teknologi Thermography Khairul Anwar; Irza Sukmana; A. Yudi Eka Risano
Seminar Nasional Insinyur Profesional (SNIP) Vol. 3 No. 1 (2023): Prosiding SNIP Vol.3 No.1
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/snip.v3i1.362

Abstract

Penerapan Condition Based Maintenance (CBM) untuk meningkatkan keandalan peralatan pembangkit di PLTU Sebalang PT PLN (Persero) Unit Induk Pembangkitan Sumatera Bagian Selatan secara umumnya dan Unit Pelaksana Pembangkitan Sebalang secara khususnya. Dalam perjalanannya, PLTU Sebalang yang diserahkan pada PT PLN (Persero) Unit Induk Pembangkitan Sumatera Bagian Selatan tidak sepenuhnya berada di dalam kondisi yang baik sehingga diperlukan banyak perbaikan agar PLTU Sebalang ini dapat mencapai performa yang baik. Fokus pembahasan makalah ini mencakup tentang strategi tim Pemeliharaan Prediktif untuk mengoptimalisasikan pelaksanaan Condition Based Maintenance (CBM) pada peralatan critical di Unit Pelaksanaan Pembangkitan Sebalang untuk meningkatkan keandalan aset pembangkit. Salah satu program peningkatan keandalan aset pembangkit yakni dengan cara melaksanakan kegiatan Predictive Maintenance (PdM), adanya kegiatan PdM ini membuka peluang munculnya pola pemeliharaan CBM (Condition Based Maintenance) yang berdasarkan database Asset Wellness dan rekomendasi PdM. Pola pemeliharaan CBM memberikan manfaat yang besar bagi proses bisnis pembangkit ini antara lain : memberikan pemetaaan kesehatan peralatan pembangkit, meningkatkan efektifitas pemeliharaan dengan fokus terhadap peralatan yang bermasalah (prioritisasi), optimalisasi asset pembangkit sehingga mengurangi biaya pemeliharaan asset serta sebagai quality control pelaksanaan pemeliharaan periodik (overhaul).
Analisis Karakteristik Pola Aliran Fluida pada Horizontal Axis Wind Tubine (HAWT) dengan Jenis Airfoil Naca 2410 Akhmad Riszal; Herry Wardono; A. Yudi Eka Risano
Seminar Nasional Insinyur Profesional (SNIP) Vol. 3 No. 1 (2023): Prosiding SNIP Vol.3 No.1
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/snip.v3i1.383

Abstract

Energi angin merupakan energi terbarukan (Renewable energi) yang ramah lingkungan. Satu dari pemanfaatan konversi energi angin adalah Turbin angin. Turbin angin merupakan salah satu alat konversi energi untuk mengubah energi angin menjadi energi mekanik dan mengubahnya menjadi listrik melalui generator. Besar kecilnya daya yang dihasilkan oleh turbin angin salah satunya tergantung dari kecepatan angin dan jenis turbin yang digunakan. Sehingga pada penelitian ini, akan dilakukan analisis turbin angin HAWT dengan menggunakan jenis airfoil Naca 2410 untuk melihat pola aliran dalam aplikasi turbin angin pada kecepatan rendah. Tujuan dari penelitian ini adalah melihat karakteristik pola aliran fluida pada turbin angin HAWT dengan menggunakan airfoil Naca 2410. Objek penelitian ini adalah airfoil menjadi blade dan simulasi turbin angin pada kecepatan angin 1-6m/s dengan jumlah sudu 5 turbin angin horizontal dengan diameter rotor 1,8 m. Metode yang digunakan adalah Blade Element Momentum (BEM) dan simulasi perancangan menggunakan software Q-Blade. Hasil dalam penggunaan jenis airfoil Naca 2410 menunjukkan adanya aliran turbulen setelah fluida melewati putaran blade pada kecepatan 6 m/s dengan TSR 4.5 menghasilkan output 540 w.
Deep Learning Implementation on Aerial Flood Victim Detection System Khairul Ummah; M Thariq Hidayat; A Yudi Eka Risano
AVIA Vol. 4, No. 2 (December 2022)
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47355/avia.v4i2.73

Abstract

Hydrometeorological hazard such as floods are considered as a regular natural disaster in Indonesia due to its frequent occurrence. To mitigate the risk, search and rescue operations need to be carried out immediately. The sheer magnitude of floods poses a major challenge for responders, and the emerging drone technology could help to alleviate the problem due to its deployment speed and coverage. Automation in drone technology has potential to improve its effectiveness. This paper explores the idea of human detection during floods using a computer vision approach. This approach utilizes a one stage detector model as detection speed is crucial in disaster management case. The dataset used for training consists of 200 labelled and negative images taken from drone point of view. This paper conducted 3 experiments to find out the difference in performance when the model was trained on flood and non-flood dataset, as well as the effect of image input size to the model’s performance. The first experiment was trained on non-flood dataset. The second experiment was trained on flood dataset, and the third experiment is the modified version of the second model. The results show that the model trained on flood dataset performed worse than non-flood counterparts with the non-flood mAP reached 90.80% while flood mAP reached 39.15%. In addition, the experiments also conclude that increasing the input size of image during training, will increase the detection performance of the model at the cost of FPS
Pengaruh Basal Sebagai Material Pelapis Logam Plat Ms Terhadap Laju Korosi Dalam Larutan, Asam H2SO4 Muh Thohirin; Herry Wardono; Yudi Eka Risano
Seminar Nasional Insinyur Profesional (SNIP) Vol. 3 No. 2 (2023): Prosiding SNIP Vol.3 No.2 Tahun 2023
Publisher : Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Korosi dapat terjadi pada berbagai jenis logam seperti seng, tembaga, besi baja dan lain-lainnya, semuanya dapat terserah oleh korosi. Selain itu korosi ternyata juga mampu menyerang logam pada komponen peralatan elektronik, mulai dari computer serta peralatan canggih lainnya yang digunakan dalam berbagai aktifitas manusia. Proses terjadinnya korosi hamper sama pada semua material terutama pada logam terjadi perlahan tetapi pasti, dimana material yang diperkirakan untuk pemakaian dalam waktu lama ternyata mempunyai umur yang lebih singkat dari umur pemakaian rata-ratanya. Oleh karena itu, untuk penelitian ini memaksimalkan potensi basal dengan memanfaatkan kandungan silika yang ada di dalamnya di padukan dengan getah damar yang merupakan tanaman endemi Indonesia yang banyak ditemukan di Krui dan Lampung Barat dengan dilakukan variasi ukuran butir basal yaitu 250 mesh, sebagai pelapis logam baja jenis mild steel diperuntukan melindungi logam dari korosi pada larutan asam H2SO4. Analisis mikroskop optik baja lunak setelah direndam dalam larutan H2SO4 selama 192 jam dengan perbesaran 100x. Pengujian menggunakan mikroskop optik bertujuan untuk melihat struktur permukaan pada sampel tanpa pelapisan dan yang dilapisi. Pengujian dilakukan dengan mengamati permukaan sampel menggunakan mikroskop optik dengan perbesaran 100x. Berdasarkan Gambar 10(a) struktur permukaan pada logam besi MS tanpa pelapisan mengindikasikan bahwa baja telah terkorosi terlihat pada karat yang telah banyak terbentuk pada permukaan logam besi MS Larutan asam H2SO4 juga berpengaruh sangat cepat pada logam besi MS hal ini disebabkan larutan nyang mempunyai pH asam < 5 akan berpengaruh terhadap lingkungan cepat terkorosi.
Effect of the Depth of Cut on the Age of High-Speed Steel (HSS) Lathe Tool for the Low Carbon Steel Outer Turning Riszal, Akhmad; Risano, Ahmad Yudi Eka; Tarkono, Tarkono; Bayu, Chandra
Jurnal Inovasi Teknologi Vol 4 No 2 (2023): October
Publisher : Engineering Forum of Western Indonesian Government Universities Board (Forum Teknik, BKS-PTN Wilayah Barat) Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Abstract In the machining process, there are three parameters that need to be determined before the machining process is carried out, namely: depth of cut (a), feed motion (f) and cutting speed (v). Determination of the three parameters of the machining process will determine the quality of the product to match the desired geometry and tolerance. The three parameters of the machining process will affect tool life, where the selection of a constant depth of cut and feed motion will produce the most optimum level of tool wear. This study used several machining parameters with several variations, namely: depth of cut (a) of 0.5 mm; 0.8mm; 1.1mm; and 1.4 mm and feeding motion (f) of 0.062 mm/revolution and 0.1 mm/revolution. The machining process is carried out at a constant (n) rotation of 425 rpm. Based on the research that has been done, it was found that the tool life on the feed motion (f) = 0.062 mm/revolution is better than that on the feed motion (f) = 0.1 mm/revolution, where at (f) = 0.1 mm/revolution chisel wears out faster. Optimum cutting conditions are produced at feed motion (f) = 0.062 mm/revolution and with a depth of cut (a) = 1.1 mm where the production cost (Cp) is Rp.746.56/product.
Deep Learning Implementation on Aerial Flood Victim Detection System Ummah, Khairul; Hidayat, M Thariq; Risano, A Yudi Eka
International Journal of Aviation Science and Engineering - AVIA Vol. 4, No. 2 (December 2022)
Publisher : FTMD Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47355/avia.v4i2.73

Abstract

Hydrometeorological hazard such as floods are considered as a regular natural disaster in Indonesia due to its frequent occurrence. To mitigate the risk, search and rescue operations need to be carried out immediately. The sheer magnitude of floods poses a major challenge for responders, and the emerging drone technology could help to alleviate the problem due to its deployment speed and coverage. Automation in drone technology has potential to improve its effectiveness. This paper explores the idea of human detection during floods using a computer vision approach. This approach utilizes a one stage detector model as detection speed is crucial in disaster management case. The dataset used for training consists of 200 labelled and negative images taken from drone point of view. This paper conducted 3 experiments to find out the difference in performance when the model was trained on flood and non-flood dataset, as well as the effect of image input size to the model’s performance. The first experiment was trained on non-flood dataset. The second experiment was trained on flood dataset, and the third experiment is the modified version of the second model. The results show that the model trained on flood dataset performed worse than non-flood counterparts with the non-flood mAP reached 90.80% while flood mAP reached 39.15%. In addition, the experiments also conclude that increasing the input size of image during training, will increase the detection performance of the model at the cost of FPS
Fibrin Gel Properties and Gelation Structures for Tissue Engineering Scaffold and Biomedical Engineering Applications Vadival, G N; Sukmana, Irza; Risano, A Yudi Eka; Sugiri, Agus; Hamdani, Fadil
International Journal of Aviation Science and Engineering - AVIA Vol. 5 No. 1: (June 2023)
Publisher : FTMD Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47355/avia.v5i1.85

Abstract

Fibrin gel is utilized in a wide range of medical applications, such as hemostatic agents, wound healing, drug delivery, cell delivery, cell differentiation, and tissue engineering. Notably, fibrin gel exhibits exceptional extensibility compared to other filamentous biopolymers, capable of stretching over five times its original length without breaking. Remarkably, it can fully recover from elongations exceeding 100% once the applied stress is removed. This paper presents an optimized formulation of fibrinogen and thrombin tailored for culturing human umbilical vein endothelial cells (HUVEC). We explore the mechanical and physical properties of the fibrin gel, aiming to identify ways to enhance its medical applications. The gel is synthesized in vitro through the combination of fibrinogen and thrombin, allowing us to assess how varying the proportions of these components affects the gel structures and properties
Co-Authors . Harmen . Sulistiyono Abdul Aziz Adi Ernadi Agus Sugiri Agus Sugiri Agus Sugiri, Agus Ahmad Riszal Ahmad Su&#039;udi Ahmad Suudi Ahmad Suudi Akhmad Riszal Amrul Amrul Anandati, Ghea Maulidaco Andy Abdel Hakim Angga Wijaya, Angga Anwar, Hasrul Ari Andrew Pane Arifin Kusumo Wicaksono Bayu, Chandra Choirul Anam Djana, Miftahul Eko Yohanes Erisha Putri Eriyadi, Riko Hamdani, Fadil Harmen Harnowo Supriadi, Harnowo Herry Wardono HERU WAHYUDI Hidayat, M Thariq Ibrahim, Fauzi Irza Sukmana Irza Sukmana Irza Sukmana Irza Sukmana Irza Sukmana, Irza Khairul Anwar Khairul Ummah Khairul Ummah Lamsihar S Tamba M Thariq Hidayat M. Dyan Susila M. Dyan Susila ES M. Haviz M. Rangga Saputra Mahruri Arif Wicaksono Mahruri Arif Wicaksono Maulana Efendi Mayasari, Rizka Meylia Rodiawati Muhammad Badaruddin Muhammad Hanif Muhammad Irsyad Muhammad Irsyad Nafrizal Nandi Haerudin Noorhidana, Vera A Novri Tanti Novri Tanti, Novri Panji Kurniawan Paska W, Andreas Rahmat Ramadhan Renardy, B Niko Rendy Dwi A.P. Riszal, Ahmad Riszal, Akhmad Rizal Adi Saputra Rizal Adi Saputra Sandy Dwi Hardin Sari, Devi Kurnia Sihombing, Gunawan Poniton R.P. Simparmin br Ginting Subekti Bagus W SUGIYANTO Tarkono Tarkono Tebu, Yohanes Yonathan Thalya Miranda Thohirin, Muh Vadival, G N Wijaya, Riki C Yoga Pratama Zulhanif