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All Journal Teknologi dan Kejuruan: Jurnal teknologi, Kejuruan dan Pengajarannya Transmisi TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan Journal of Mechanical Engineering Science and Technology Journal of Accounting and Management Innovation Turbo : Jurnal Program Studi Teknik Mesin Chimica et Natura Acta Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Journal of Economic, Bussines and Accounting (COSTING) SEIKO : Journal of Management & Business Jurnal Kreativitas PKM Manuju : Malahayati Nursing Journal Almufida: Jurnal Ilmu-Ilmu Keislaman International Journal of Recent Technology and Applied Science (IJORTAS) Indonesian Journal for Social Responsibility Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Pengabdian, Pendidikan dan Teknologi Journal of Industrial Engineering & Management Research (JIEMAR) Jurnal Perak Malahayati : Pengabdian Kepada Masyarakat Andalasian International Journal of Applied Science, Engineering, and Technology Journal of Accounting and Management Innovation Proceeding International Seminar of Islamic Studies Mechanical Engineering for Society and Industry Journal of Mechanical Engineering, Science, and Innovation Jurnal Bangun Manajemen Zona Manajerial: Program Studi Manajemen (S1) Universitas Batam Journal of Public Health Concerns Barongko : Jurnal Ilmu Kesehatan JOURNAL OF Qualitative Health Research & Case Studies Reports JOURNAL OF Mental Health Concerns Journal of Innovative and Creativity International Journal Of Synergi In Law, Criminal And Justice Jurnal Ekonomi, Manajemen, Akuntansi NMI THE JOURNAL OF Nursing Management Issues Midwifery Journal
Andoko Andoko, Andoko
Universitas Negeri Malang
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Other

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Pengolahan Ikan Asap Berdasarkan Konsep Cara Pengolahan Pangan yang Baik (CPPB) untuk Meningkatkan Branding Kuliner Unggulan Pantai Prigi Trenggalek Rifqie Mariana, Rina; Wahyu Hidayat, Nur; Andoko, Andoko; Ade Lose Hermanto, Yon; Syah Pahlevi, Andreas; Muntholib , Muntholib
Indonesian Journal for Social Responsibility Vol. 5 No. 01 (2023): June 2023
Publisher : LPkM Universitas Bakrie

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36782/ijsr.v5i01.180

Abstract

Currently smoked fish is known as the superior cuisine of Prigi Beach, Trenggalek Regency. The local government in Trenggalek Regency was quite successful in empowering the community around Prigi Beach through training in producing smoked fish while at the same time utilizing abundant fish resources. However, their production and marketing processes were still conventional that which negatively impacted the profit since the products were deteriorated before they were all sold due to the limited targeted consumers that were Prigi Beach tourists. This community service offered solutions and methods such as counseling and practices regarding healthy, preserved, and safe storage for smoked fish process based on the Good Manufacturing Practices (GMP), and digital marketing training continued with gifting packing and freezer tools to one group of artisans. This activity was joined by 20 artisans in Tasikmadu Village, Prigi Bay, Watulimo District, Trenggalek Regency. After one month of monitoring and guidance by the community service team, artisans could improve their products into healthy, preserved, and safe products. Also, their market is widened not only limited to the beach, but also through Instagram and other social media. Thus, their profit gradually increased since August.
The Effect of Cutting Speed of Nitrogen Laser Cutting on the Surface Texture of SUS 304 Plate Pradana, Yanuar Rohmat Aji; Afrianto, Raka; Rahman, Chandra Hairat Abdul; Andoko, Andoko
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 7, No 1 (2023)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v7i12023p066

Abstract

The focus of today’s machining industry is on how to maintain high productivity and low cost achieved by high tool life during the operation. Laser cutting is considered the right solution because it offers cutting speeds of up to 170000 mm/min through a non-contact process regardless of the workpiece material hardness. The aim of this study is to analyze the effect of cutting speed on the surface texture aspects namely surface roughness, kerf shape, and dross height on the stainless steel 304 plate after laser cutting. The nitrogen laser was utilized with the cutting speed of 400, 1700, and 2000 mm /min and the average roughness (Ra) was then measured using a surface roughness tester. On the other hand, the top, middle, and bottom area of the kerf surface as well as the dross height were analyzed by scanning electron microscopy (SEM). The highest Ra value was resulted at cutting speed of 2000 mm/min with 2.965 ± 0.05 μm while the lowest was at 1400 mm/min with 2.522 ± 0.16 μm. In parallel, the Ra was found to be higher when subjected gradually from the top to bottom zone. The kerf surface also proved that the top zone is dominated by the cutting zone, while the middle and bottom zone are characterized by the transition and deformation zone respectively. The width between kerf lines increased when the higher cutting speed was performed. Additionally, the larger dross height was found at the cutting speed of 1400 mm/min with 32.75 ± 5.21 μm and then degraded gradually at the higher cutting speed. The heat input and laser capability in exposing the material thickness are responsible for determining the corresponding surface texture aspects.
Simulation of the Performance of Kevlar Impregnated Shear Thickening Fluid Ballistic Test Results (STF) Ballistic Test Results Prasetya, Riduwan; Andoko, Andoko; Suprayitno, Suprayitno; Wulandari, Retno; Trihutomo, Prihanto; Mishima, Kenji; Janas, Dawid
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 8, No 1 (2024)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v8i12024p054

Abstract

This study explores the enhancement of Kevlar fabric’s ballistic performance through impregnation with Shear Thickening Fluid (STF) for potential application in soft body armor. The experimental approach often fails to elucidate mechanical phenomena critical for the development of lightweight and high-strength body armor designs. To address this limitation, the finite element method, specifically using ANSYS/LS-DYNA R.13, was employed for a comprehensive analysis. The simulation aimed to evaluate the impact of STF on Kevlar fabric by assessing projectile velocity, force exerted by the projectile onto the fabric, displacement, stress distribution, and fabric failure mechanisms. Kevlar yarn was modeled as a shell element formed into fabric with a sine wave profile, investigating two types of STF: SiO2-PEG200 (S0) and SiO2-PEG200-B4C (S1), differing in maximum viscosities. The addition of STF resulted in increased coefficients of friction on Kevlar, with the highest values observed for the SiO2-PEG200-B4C impregnated fabric (  =0.87 and =0.82). The incorporation of the second STF type (S1) significantly reduced the projectile’s velocity from an initial 200 m/s to 153.2 m/s upon impact. Additionally, the force on the S1 fabric surged to 121,556 N, a threefold increase compared to neat Kevlar. STF's influence was further evidenced by enhanced fabric displacement and more uniform stress distribution upon ballistic impact. The fabric's thickening upon failure indicated STF's ability to enlarge the deformation area, facilitating uniform distribution of ballistic kinetic energy across the impact zone. Notably, the fabric impregnated with the second type of STF, featuring boron carbide (S1), demonstrated superior ballistic performance. This study concludes that STF-impregnated Kevlar fabric, particularly the SiO2-PEG200-B4C variant, not only surpasses the ballistic performance of neat Kevlar but also meets the criteria for NIJ Level IIIA standards, highlighting its potential as a highly effective material for advanced soft body armor designs.
Effect of Current and Pulse-on Time on Material Removal Rate and Surface Roughness of Tungsten Carbide in Electric Discharge Machine Die-sinking Riyanto, Mochammad Deny; Andoko, Andoko; Suryanto, Heru
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 7, No 1 (2023)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v7i12023p039

Abstract

The focus of manufacturing for tungsten carbide applications often demands a smooth surface quality as the result of the Electric Discharge Machine (EDM) die-sinking process, especially in the manufacture of die and mold with tungsten carbide material processed using a die-sinking EDM machine. The purpose of this study is to analyze the effect of electric current and pulse-on time on the Material Removal Rate (MRR) and surface roughness of tungsten carbide. Through the experimental method, the parameters varied, namely electric current 17 A, 20 A, 23 A, and pulse-on time 30 µs, 55 µs, and 80 µs. MRR was calculated through weight loss. Surface roughness was obtained from a surface roughness tester and a Scanning Electron Microscope for surface morphology. The results showed that the highest material removal rate was 1.509 mm3/min at 23 A and 30 µs, and the lowest material removal rate was 0.262 mm3/min at 17 A and 80 µs. The highest surface roughness value was 4.278 µm at 23 A and 80 µs. The lowest surface roughness value was 2.166 µm at 17 A and 30 µs. The tungsten carbide surface topography results are crater, globule, crack, and porous. The greater the current used, the higher the MRR value and surface roughness. Meanwhile, the greater the pulse-on time used, the MRR value decreases, and the surface roughness increases.
Evolution of Residual Stress, Crystal Orientation, and Texture on Preheating Weld Treatment of Low Carbon Steel ASTM A572 Grade 42 Saputro, Suratno Adi; Andoko, Andoko; Puspitasari, Poppy
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 8, No 1 (2024)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v8i12024p015

Abstract

Preheating is one type of heat treatment on the material prior to starting the welding process by increasing the temperature of the material. It is used to reduce the cooling rate during the welding processes to minimize the risk of residual stress and cracking during welding. Besides the benefits of welding, it also has a negative impact, especially on the integrity of the material, because the heating process at high temperatures will cause residual stress, which will affect the mechanical properties, chemical composition, and microstructure of the material, especially on Heat Affected Zone (HAZ). This study aims to analyze the effect of preheating at a temperature of 200 ºC on the welding for ASTM A572 Grade 42 steel with a thickness of 40mm using the SMAW (Shielded Metal-Arch welding) method. ASTM A572 Grade 42 was used in this study with carbon content of less than 0.25%. Based on the results of measurements and analysis using the XRD method, it was found that preheating resulted in reducing the residual stress on both weld metal and HAZ areas. Preheating treatment also moved the peak diffraction to the right side, which means the heat treatment affected compressive residual stress rather than tensile residual stress. For crystal orientation, area [110] has the highest peak diffraction and highest intensity. This area also was found with smaller size crystal size and higher dislocation and microstrain. While bigger crystal size with lower dislocation and microstrain were found in the area [200]. For texture, the highest density was found in the area [200], while the weaker texture was found in the areas [110] and [211]. The texture was influenced by plastic deformation due to atomic structure and its dislocation.
URGENSI PENEGAKAN TERHADAP PENCEMARAN LINGKUNGAN HIDUP DALAM ASPEK HUKUM PIDANA Andoko, Andoko
Almufida : Jurnal Ilmu-Ilmu Keislaman Vol 8, No 1 (2023): Almufida: Jurnal Ilmu-Ilmu Keislaman
Publisher : Universitas Dharmawangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46576/almufida.v8i1.3043

Abstract

So far, academics and practitioners are quite familiarwith the term environmental law, which in Indonesian is known asthe rule of law. Referring to the type of government that the statebased on law is a general idea or concept that is not related to anyparticular field of law. Even though the study of why environmentallaw is needed is very focused on the impact of environmental damagecausedbymassiveexploitationinordertofulfilleconomicdevelopment. As a caliph on earth, it is appropriate for humans toprotect and care for the earth and everything in it. However, in aneffort to improve the quality of life, humans try their best to processandutilizenaturalresources.Environmentalexploitationalsoinvolves the private sector on behalf of companies or corporations.The stagnation of law enforcement efforts by prioritizing criminalsanctionshasresultedinafeelingofdeterrenteffecthavingdisappeared and the law as if it is not obeyed by the perpetrators ofenvironmentalcrimes,becausethisresearchfocusesmoreonstudying environmental criminal law related to the aspect of urgencyprioritizing criminal sanctions against perpetrators ofenvironmentalcrimes life. This study uses a normative research model, researchbased on analyzing legal principles, norms and all regulations thatapply in the legal system in Indonesia related to the environment.This normative research will analyze laws and regulations and tostrengthen the results of the research the authors use xample as areinforcement of research results. The results of this study indicatethat the application of criminal sanctions has a high urgency, becausecriminal sanctions havea deterrent effect.
IMPLEMENTASI MESIN PENCACAH RUMPUT UNTUK PETERNAKAN SAPI DI DESA MULYOREJO, KECAMATAN NGANTANG Andoko, Andoko; Prasetya, Riduwan; Pasha, Muhammad Faizullah; Darmawan, Muhammad Wahid; Puspitasari, Poppy; Lubis, Didin Zakariya
Jurnal Pengabdian Pendidikan dan Teknologi (JP2T) Vol 4, No 2 (2023)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um080v4i22023p75-80

Abstract

Peternakan sapi merupakan sektor yang paling potensial di Desa Mulyorejo, Kecamatan Ngantang, Kabupaten Malang. Sapi perah merupakan jenis sapi yang paling banyak diternak yang menghasilkan susu. Permasalahan peternak di Desa ini adalah rendahnya produktivitas susu karena manajemen pakan yang kurang terkontrol dan sisa pakan yang terlalu banyak yang menjadi limbah. Pengabdian ini bertujuan untuk mengatasi permasalahan ini melaui implementasi mesin pencacah rumput. Kegiatan penelitian meliputi analisis permasalahan mitra, desain dan manufaktur mesin, implementasi ke mitra, dan evaluasi. Mesin pencacah rumput dapat mencacah hingga kapasitas 177 kg/jam pada kecepatan 1800 rpm. Berdasarkan hasil evaluasi pada implementasi mesin pencacah rumput diperoleh hasil bahwa sisa pakan berkurang dan produktivitas susu meningkat. Sehingga, implementasi mesin pencacah rumput bagi mitra efektif, tepat sasaran, dan solutif.
Smartphone App for Heart Rate Monitoring and Its Impact on Education Toward Industry 4.0 Aripriharta, Aripriharta; Andajani, Kusubakti; Aisyah, Siti; Riski, Akhmad Afrizal; Andoko, Andoko; Mufti, Nandang; Horng, Gwo Jiun
Teknologi dan Kejuruan: Jurnal Teknologi, Kejuruan, dan Pengajarannya Vol 43, No 2: September 2020
Publisher : Fakultas Teknik Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um031v43i22020p100-105

Abstract

This paper presents the development of Smartphone app for monitoring the heart rate, which used as a tool for life-based learning. The app featured life-based experiments for undergraduates' students through do-it-by-your-self activities. This app was developed with Firebase to create a heart rate monitoring system interface as well as a framework for life-based experiments. Also, this app had video features as learning resources. We used an experimental method to evaluate the proposed system of learning. The subjects were 30 undergraduate students who were separated into two groups. Based on our survey, student learning outcomes increased by 35 percent compared to conventional experiments.
IMPLEMENTATION OF ARTICLE 27 SECTION (1) OF LAW NUMBER 24 OF 2013 CONCERNING POPULATION ADMINISTRATION YEAR 2013 CONCERNING POPULATION ADMINISTRATION Yusran Gea, Ali; Andoko, Andoko
Proceeding International Seminar of Islamic Studies INSIS 5 (March 2023)
Publisher : Proceeding International Seminar of Islamic Studies

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

Abstract

There are two problems studied in this research, namely: (1) How Implementation of Article 27 Paragraph (1) of Law Number 24 of 2013 concerning Population Administration in Manau Sembilan Village II Population Administration in Manau Sembilan II Village, Padang Guci District Hulu Kaur Regency, and (2) How does Islam view the community that does not fulfill the right to identity of children in Manau Sembilan II Village? who do not fulfill the right to a child's identity in Manau Sembilan II Village, Padang Guci Hulu Subdistrict, Kaur Regency. Padang Guci Hulu Kaur Regency. To reveal the above problems, the The research method used is descriptive qualitative research, exploring data, information about the Implementation of Article 27 Paragraph (1) of Law Number 24 Year 2013 concerning Population Administration (Study in Manau Sembilan Village II Subdistrict Padang Guci Hulu Kaur Regency by using the method of Field Risearch is a research conducted in the field with observation, interviews and documentation. observation, interviews and documentation. Then described analyzed, and discussed to answer the problem. The results of this study found that: 1. Article 27 Paragraph (1) of Law Number 24 of 2013 Concerning Population Administration (Study in Manau Sembilan II Village, Padang Guci Hulu Subdistrict) Population Administration (Study in Manau Sembilan II Village, Padang Guci Hulu Subdistrict, Kaur Regency) has not been implemented optimally. Islam does not prohibit the registration of children's births because the registration of children's births is not allowed. If the birth of a child is registered because birth registration aims to bring maslahat for the child. maslahat for the child. So that people who have not reported births and have not taken care of Birth Certificate to be able to take care of it while still following the provisions of the State law.
Effect of Electrodeposition Time on the Growth Rate of Carbon Nanotubes (CNTs) Faishol, Faishol; Andoko, Andoko; Suryanto, Heru; Prasetya, Riduwan
TRANSMISI Vol. 20 No. 2 (2024): September (2024)
Publisher : Universitas Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jtmt.v20i2.13672

Abstract

Carbon Nanotubes (CNTs) are nano-sized carbon that resembles tubes and has the potential to be used in various aspects of applications. Some of  the CNT carbon capture  methods include arc discharge, lasser ablation, CVD and electrodeposition. The advantage of the electrodeposition method is that the production cost is cheap and the preparation is easy. Electrodeposition is the precipitation of substances by using a direct electric current, with CO2 as the reactant. Factors that affect the growth rate of CNT are voltage, temperature, carbon source, electrode and time. The variation of the electorative time used was 60 minutes, 90 minutes, 120 minutes, 150 minutes, 180 minutes. The data collection process begins by shaping and measuring the weight of the electrode (Ni) with a diameter of 2 cm CNT deposition area. measuring the weight and melting Li2CO3 at a temperature of 750. then the CO2 flow rate setting, voltage setting  5V and time setting were then characterized by SEM-EDX and XRD. The results of the study showed that the optimal time obtained with a time of 120 minutes, the resulting CNT deposition rate was 1,618 g cm-2 h-1. Then based on the characterization of XRD and SEM, it shows that the longer the electrodeposition time, the less impurities are contained in the results obtained.
Co-Authors A.N. Afandi Abdiyar, Muhammad Albin Afandy, Mochamad Viky Afrianto, Raka Agung Prabowo Akbar, Muhamad Rizky Amin Hou Aminnudin, Aminnudin Andi Muadz Palerangi Andreas Syah Pahlevi Ari Ambrianti Arifin Arifin Aripriharta - Aryanti Aryanti Aryanti Wardiyah, Aryanti Avita Ayu Permanasari Azhali Siregar Azzahra, Putri Salsabila Bayu Angga Pratama Cahyono, Yanuar Reza Trie Caristia, Angga Chrisanto, Eka Yudha Darmawan, Muhammad Wahid Deby S O Pasaribu Dhitya, Ray Krisna Didin Zakaria Lubis Didin Zakariya Lubis Edison, Shandi Setiawan Elliya, Rahma Epilasari, Epilasari ERWAN, FRAGESTHA Fadhil Wibowo Faishol, Faishol Furqoni, Prima Dian Haryanti, Mega Hermanto, Yon Ade Lose Heru Suryanto Horng, Gwo Jiun Husada, Imam Farid Farian Imam Muda Nauri Irham Fadlika Janas, Dawid Jemmy Rumengan Juana, Rika K, Umi Rohmayati Keswara, Umi Romayati Khoirudin, Parid Khoyroh, Syafira Bilqis Kurniasih, Dennti Kusubakti Andajani M. Alfian Mizar M. Arif Sani M. Arifki Zainaro Mardji Mardji Martok, Yenni Maulidia Hendriani MHD AZHALI Siregar Mishima, Kenji Muliadin , Muliadin Muntholib Nada, Dhea Qurrotun Nandang Mufti Noor Ibrahim , Alza Nurdiansyah Rudi Pangesti, Dimas Ning Pasha, Muhammad Faizullah Perdana, Muhamad Rayhan Rizky Pradana, Yanuar Rohmat Aji Prasetya, Riduwan Prihanto Trihutomo Putra, Bagus Kharisma Putri, Evalistiyo Rachmawati, Yessy Rahman, Chandra Hairat Abdul Rahmawati, Reka Putri Ramadhan, Rafli Adi Retno Wulandari Retno Wulandari Riana Nurmalasari Riduwan Prasetya Riduwan Prasetya Rika Yulendasari Rilyani, Rilyani Rina Rifqie Mariana Riska Wandini, Riska Riski, Akhmad Afrizal Riyanto, Mochammad Deny Rizka, Mahda Rr. Poppy Puspitasari Saputro, Suratno Adi Sari, Devi Ratna Sari, Lisa Yuliana Sari, Made Novita Sari, Mentari Permata Satria, Frinan SATRIA, FRIYAN Selfianti, Selfianti Setiawati Setiawati Shiddieqy, M. Hasbi Ash Silvia, Eka Sinuhaji, Frans G Siti Aisyah Slivia, Eka Sormin, Partogian Suprayitno Suprayitno Suprayitno Suprayitno Surani, Eka Sri Syah, Muhammad Zacky Syamsiar, Syamsiar Tengku Riza Zarzani N Trismiana, Eka Trismiyana, Eka Triyoso, Triyoso Tuwoso Ulandari, Elpi WAHYU HIDAYAT, NUR William, Evelyn Natasha Winson, Lelita wulan, Sarinah sri Yahya Zakaria Yenni Yenni Yudha, Eka Yunazar Manjang Yusmaniarti, Dera Yusran Gea, Ali Yusuf, Dody Iqbal