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Nanang Fatchurrohman
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INDONESIA
Jurnal Teknologi
Published by Universitas Putra Indonesia YPTK Padang
ISSN : 23014474     EISSN : 25411535     DOI : https://doi.org/10.35134
Core Subject : Science, Engineering,
Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering
Jurnal Teknologi The scope areas covered by the journal are Chemical & Bioprocess Engineering, Civil & Architecture Engineering, Computer Engineering, Electrical & Electronics Engineering, Industrial Engineering, Marine Engineering, Material & Metallurgical Engineering, and Mechanical Engineering. Additionally the aim of the journal focuses on publishing scientific articles from research results and analytical studies in the fields: - Economics - Computers - Technologies, and related fields as well as interdisciplinary between these fields.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 74 Documents
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Perancangan Prototipe Alat Bermain Belajar Braille Low Cost Berbasis Mikrokontroler Arduino Sensor RFID Bertha Bintari; Martinus Bagus Wicaksono
Jurnal Teknologi Vol. 12 No. 2 (2022): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (310.753 KB) | DOI: 10.35134/jitekin.v12i2.73

Abstract

Blind children have limited ability to read, so the introduction of the ability to read and write using braille is very important. They have to learn to recognizing braille letters, then arranging letters to form syllables and finally a word. Learning about the concept of reading needs a tool that makes it easy and fun, then children will learn while playing. The design of the device braille set is intended as a learning tool for blind children to introduce and learn to read braille. This system uses an RFID (Radio Frequency Identification) MFRC522 sensor programmed by Arduino as a microcontroller. The code as a signal in the RFID tag card is read by the RFID reader. RFID tag cards are equipped with a layer on the surface of the card marked with a braille symbol. When children recognize the braille symbols on cards, they can assemble the cards into a word. The word will then be read by the device and audible so that the children hear the words they have composed. The components of this learning tool to read braille use an RFID reader component, a mini MP3 player module, Arduino, as a microcontroller. The power supply uses a 9 volt battery. DC motor drive and wheels to walk on the scrabble track. The material for the card coaster casing uses acrylic material. The track frame uses aluminium profiles. Overall, the cost of making braille reading learning tools with the implementation of RFID technology is cheap and affordable.
Development of Remote Programming Practice Module for Mitsubishi RV-M1 Industrial Robot Eko Aris Budi Cahyono; Pippie Arbiyanti; Dian Artanto
Jurnal Teknologi Vol. 12 No. 2 (2022): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (263.536 KB) | DOI: 10.35134/jitekin.v12i2.74

Abstract

This research aims to provide solutions for practical learning in the vocational field of mechatronic engineering during the Covid-19 pandemic. In order for vocational students to become skilled and competent, a considerable number of hours of practice is required. Meanwhile, to prevent the spread of Covid-19, restrictions on face-to-face meetings have been imposed. To make the number of hours of student practice sufficient without having to meet face to face, a remote laboratory is presented, which can be accessed by students easily, anytime and anywhere. The developed remote laboratory uses real equipment, in the form of the Mitsubishi RV-M1 Industrial Robot, which is monitored by 3 cameras, and can be controlled via the internet. The use of a real robot, not a simulation, is intended so that students can feel the experience as if they were practicing the robot directly. This remote laboratory for the practice of programming the Mitsubishi RV-M1 Industrial Robot has been successfully developed and is already being used by mechatronics students at the vocational faculty of Sanata Dharma University. Most of the students gave a good response to this remote laboratory, because students got a new and interesting experience. To demonstrate the effectiveness of this remote laboratory, a comparison is shown of the average time for searching for the position of an object directly and indirectly through the remote laboratory. From the results of the comparison, the average time to search for the position of an object directly ranges from 1-2 minutes, while through a remote laboratory it ranges from 2-3 minutes, which is considered to be within reasonable limits.
The The Latest Trend in Utilization of Organic Fertilizer for Improving Group Productivity Farming Maidawati; Rina Sepriani; Ihsanul Fuadi
Jurnal Teknologi Vol. 12 No. 2 (2022): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (162.214 KB) | DOI: 10.35134/jitekin.v12i2.76

Abstract

The Pejuang Muda or Young Fighters Program was a new program initiated by the Ministry of Social Affairs in 2021 in collaboration with the Free Learning Program of the Ministry of Education, Culture, Research, and Technology, as well as the Ministry of Religion. This program, involving active students as participants from various universities, aims to help update the Social Welfare Integrated Data (SWID), in addition to mapping and designing social programs based on social empowerment in all provinces in Indonesia. Starting from the eight forms of learning activities accommodated by the Merdeka Campus Program, Pejuang Muda Program took the form of learning activities. The focus of the program was the formation of social and economic growth in various locations in Indonesia through community empowerment. Such program can be used to solve social problems that were often encounter in Nagari Kinari were cow dung not processed or utilized properly by local farmers. Such as finding cow dung scattered on roads, residential areas, which resulted in environmental pollution and improves soil physical, chemical, and biological properties. The purpose of this study was to focus on the use of organic fertilizers with the aim of increasing production of environmentally friendly and cost-effective agricultural products aided by the Pejuang Muda Program. This type of research is qualitative descriptive in nature and the researcher also involves the community in Nagari Kinari to obtain data through observation and interviews. In carrying out this research, farmer groups in Nagari Kinari and the people of Nagari Kinari gain insight into new knowledge and understanding about the processing and benefits of organic fertilizers directly and through the practice carried out during training, the community was able to apply it directly in the field. Hence it aided to solve social and economic problems simultaneously.
Optimasi Parameter 3D Printing Menggunakan Material PP Daur Ulang pada Spesimen ASTM 638 D 10 type 1 dengan Response Surface Method Felix Krisna Aji Nugraha; Bertha Bintari Wahyujati
Jurnal Teknologi Vol. 12 No. 2 (2022): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (346.146 KB) | DOI: 10.35134/jitekin.v12i2.78

Abstract

Recycling plastic waste is one way to minimize the negative impact on the environment. The use of additive manufacturing which speeds up the prototyping process and product design currently uses a 3D printer with ABS and PLA filament materials. Remaining filaments and unused parts/prototypes, or products that have been manufactured with actual materials will be discarded. This causes waste for the environment. The use of recycled filament for 3d printing machines is one way to deal with plastic waste, besides that the use of recycled filament is a way to reduce the cost of plastic filament. Recycled plastic filament is used for 3d printer machines with the Fused Deposition Modeling (FDM) type. In this method the plastic filament material is melted and then extruded according to the desired pattern. In this study the results of the prints were tested using the tensile test method. Parameters used, print temperature, layer height, print speed. Response data analysis uses the Response Surface Method (RSM) with the Box-Behnken type. The results of the tensile test data were analyzed using Analysis of Variance (ANOVA). Based on the results of the ASTM D638-10 type 1 tensile test analysis, the print temperature parameter is 2600C, the layer height is 0.12 mm and the maximum print speed is 50 mm/s.
Penelitian untuk Menekan Bullwhip Effect dalam Manajemen Rantai Pasok dengan Metode Periodic Review Susriyati; Mohammad Farid; Beni Harma; Pebi Egia Sapitri
Jurnal Teknologi Vol. 12 No. 2 (2022): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (194.106 KB) | DOI: 10.35134/jitekin.v12i2.80

Abstract

This article presents research in the field of Supply Chain Management, the method used is descriptive exploratory method, using this research method it will be known about the object under study, resulting in conclusions from the research process carried out. The descriptive method is to find out and explain the characteristics of the variables studied in a situation and to describe aspects that are relevant to the research phenomenon. Research was conducted on this furniture business (CV. Budi Perabot), it is difficult for the company to determine the optimal amount of production because the demands of each retailer are different every month. After calculating the Bullwhip Effect using the Periodic Review method, it is known that the value of the Bullwhip Effect is a wardrobe of 1, a bed of 0.919, a dresser of 1.19, a display cabinet of 0.97. The application of the Periodic Review method has a positive impact because it is able to reduce or reduce the value of the Bullwhip Effect and minimize those in orders, demands and sales. In addition, the Periodic Review method is also able to create inventory at the recommended level on the number of orders. Comparison of the value of the Bullwhip Effect before applying the Periodic Review method for all products was 8,988 and after applying the Periodic Review method, it was reduced to 4,079. The comparison value was 4,909 after adding up all the products under study.
Design and Control Development of an Autonomous Visitor Guiding Robot in a Hospital Environment Agus Siswoyo; Pippie Arbiyanti; Rodik Wahyu Indrawan
Jurnal Teknologi Vol. 13 No. 1 (2023): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35134/jitekin.v13i1.81

Abstract

Mobile robot technology, coupled with artificial intelligence, has reached a point where robots can now autonomously navigate and store area data, while the integration of smart sensor and controller technology enables them to detect and adapt to dynamic environments by making predictions under diverse conditions. In general, hospital visitors do not have sufficient preparation and knowledge accompanied by sudden situations, this often makes visitors, namely patients and patient companions confused and panicked. The reality is that until now, many visitors are still pacing in the wrong room, asking the officers many times, which eventually leads to misunderstandings by visitors to the hospital system, facilities, and services which are considered complicated and make visitors dissatisfied. Applied technology innovation Design and control of autonomous visitor guide robots in hospital environments (Viguro Robot) offers solutions using interactive robots that can provide location information and deliver visitors to their intended location. Artificial intelligence is employed through the utilization of sensors, digital data, or remote input, allowing the amalgamation of hospital patient data, instant material analysis, and the utilization of insights derived from Viguro Robots' sensors. This robot is designed by utilizing the development of autonomous mobile robot technology, interactive human machine interface, localization and mapping, and obstacle avoidance. The stages in making the robot begin with design planning, initial testing, stage I validation, stage II validation, and implementation testing. This applied innovation of technology is expected to offer solutions in order to improve facilities and quality of service to patients and patient companions in hospitals.
Usulan Perbaikan untuk Meminimasi Reject pada Unit Produksi Keripik Sanjai Rina Kota Payakumbuh Dina Rahmayanti; M. Ihsan Ashshiddiqi; Hilma Raimona Zadry; Yumi Meuthia; Lusi Susanti
Jurnal Teknologi Vol. 13 No. 1 (2023): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35134/jitekin.v13i1.88

Abstract

Sanjai Rina is one of the small and medium industries (SMEs) that produces and sells sanjai chips. This study aims to identify aspects that cause rejected production in Sanjai Rina. This study uses the Statistical Process Control (SPC) method with the Failure Mode and Effect Analysis (FMEA) approach. The stages of the research started with problem identification, brainstorming, FMEA calculations, and recommendations for improvement. Identifying problems using the required to-quality method and IPO diagrams followed by brainstorming to identify the existing problems using fishbone diagrams in more detail. FMEA calculations design a questionnaire for RPN FMEA calculations by considering severity, occurrence, and detection weighting. The resulting rejected products are broken sanjai, burnt sanjai, and non-crispy sanjai chips. The research results found that the highest cause for each cause of rejection was the same, namely the potential due to low worker skill failure with an RPN FMEA value of 409.6. Several solutions can be proposed from this research, while the priority solutions are making work SOPs and making work instructions for the frying section.
Penerapan Metode Silver Meal Heuristic untuk Minimasi Biaya Persediaan Bahan Baku Tahu Mutiara Yetrina; Rifki Muhida; Abu Bakri
Jurnal Teknologi Vol. 13 No. 1 (2023): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35134/jitekin.v13i1.89

Abstract

UMKM Pabrik Tahu AL merupakan salah satu produsen tahu yang beralamat di Kecamatan Kuranji, Kota Padang, Sumatera Barat. Secara umum permasalahan kurangnya persediaan bahan baku menduduki peringkat utama dalam permasalahan produksi pada Pabrik Tahu AL. Akibat dari kekurangan tersebut, terjadi kehilangan keuntungan yang diperoleh dan kadang pula terjadi kelebihan persediaan bahan baku sehingga menimbulkan biaya persediaan. Penelitian ini termasuk kedalam penelitian yang bersifat kuantitatif. Penelitian kuantitatif adalah metode penelitian yang mengumpulkan dan menganalisis data numerik untuk memahami fenomena dan menjawab pertanyaan penelitian. Pendekatan ini menggunakan pendekatan ilmiah dan berfokus pada pengukuran objektif dan analisis statistik. Penelitian kuantitatif mengumpulkan data antara lain data persediaan, data kelebihan dan kekurangan bahan baku tahu. Metode yang digunakan untuk pengolahan data yaitu metode Silver-Meal Heuristic. Dari hasil pengolahan data diperoleh hasil bahwa metode ini menghasilkan total biaya persediaan bahan baku yang lebih kecil dari pada total biaya persediaan yang diterapkan oleh Home industry Pabrik Tahu AL selama ini, Berdasarkan data dari bulan Januari 2020 sampai Desember 2021, dari kedua metode pengendalian persediaan bahan baku dapat disimpulkan bahwa metode Silver-Meal Heuristic lebih efisien siap apabila dibandingkan dengan metode Riil home industry dengan tingkat efisiensi sebesar 5,42 persen.
Evaluasi Risiko Postur Kerja Pegawai Administrasi Menggunakan Metode SNQ dan ROSA di CV. Rempah Sari Muhammad Ilham Adelino; Susriyati; Muhammad Irwan
Jurnal Teknologi Vol. 13 No. 1 (2023): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35134/jitekin.v13i1.90

Abstract

Musculoskeletal Disorders (MSDs) is damage to the musculoskeletal system that accumulates and causes abnormalities due to repeated trauma, causing complaints of pain in the muscles. Ergonomics has an important role in preventing MSDs. Employee work activities at CV. Rempah Sari is an industrial company engaged in cinnamon bark. Workers feel complaints on the upper neck, lower neck, left shoulder, right shoulder, back, right arm, left arm, waist, hips and on the knee. The purpose of this study was to evaluate and analyze the risk level of the administrative department's work posture using the Standard Nordic Questionnaire (SNQ) and Rapid Office Strain Assessment (ROSA) methods. The results of this study using the SNQ method show that employees complain about the neck, shoulders, arms, back, waist, hips, buttocks, and need immediate repairs. The results of the ROSA calculation show that employees A, employees B, and employees C employees have a high or dangerous risk, and urgent repairs are needed. The cause of the high risk experienced is caused by the inadequate use of facilities, the need to update work facilities according to ergonomic standards in the world of work, and the holding of good and correct computer office ergonomics training to reduce injuries when using computers.
Surface Modification on Magnesium Alloys’ Hardness and Microstructure Using Friction Stir Processing – A Review Zuhairah Zulkfli; Zamzuri Hamedon; Nanang Fatchurrohman
Jurnal Teknologi Vol. 13 No. 1 (2023): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35134/jitekin.v13i1.91

Abstract

Low density of magnesium-based alloy is one potential as the lightest structural material for light weight-high strength applications for automotive and aerospace. Severe plastic deformation (SPD) together with thermomechanical processing are proved to be a successful method for attaining desired microstructural modifications through achieving fine and highly misoriented microstructures and creating various structures to the bulk properties of magnesium alloy. The material's deformation can result in an altered microstructure that is gainful to the material's requirements. However, the poor deformability of magnesium and its alloys limits the application of the thermomechanical approach. Controlling over temperature and deformation rate is hard to achieve. Among the thermomechanical processes, friction stir processing (FSP) offers an easy way to achieve process stability and mechanical properties enhancement by heat treatment which results in the closure of porosity and refined grain size. During this process, heat is generated by the rotation of the FSP processing tool. Few process parameters such as rotational and traverse speeds should be controlled to make FSP stay within the defined processing condition. It is critical to set the right tool rotational speed as well as traverse speed to ensure adequate heat generation. As there are no established standards for operating the FSP, the only solution is to experiment with different settings to find the best parameter which will produce better quality on processed magnesium alloy workpiece. This paper explores earlier studies on surface modification via FSP technique to improve the mechanical properties strengthening of magnesium alloy mainly on grain size and hardness. The surface modification was done mostly on popular series of magnesium alloy (AZ series) using different tool material, tool geometry and different parameters combination. A comprehensive view of surface modification on magnesium alloys which includes the FSP tool and workpiece material used, variations of FSP parameters settings as well as the effect on hardness and microstructure analysis will be discussed.

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