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Mochamad Sulaiman
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G-Tech : Jurnal Teknologi Terapan
Published by Universitas Islam Raden Rahmat Malang
ISSN : 25808737     EISSN : 2623064X     DOI : -
Core Subject : Science, Engineering,
Computer Science & IT Decision Sciences, Operations Research & Management Energy Engineering
Jurnal G-Tech bertujuan untuk mempublikasikan hasil penelitian asli dan review hasil penelitian tentang teknologi dan terapan pada ruang lingkup keteknikan meliputi teknik mesin, teknik elektro, teknik informatika, sistem informasi, agroteknologi, dll.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 897 Documents
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Innovative Solution for Contradictions of Waste Handling in Disassembly Process Using TRIZ Method Muqimuddin Muqimuddin; Yemima Elza Desideria Desideria; Faishal Arham Pratikno
G-Tech: Jurnal Teknologi Terapan Vol 8 No 1 (2024): G-Tech, Vol. 8 No. 1 Januari 2024
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33379/gtech.v8i1.3609

Abstract

The disassembly phase in remanufacturing currently takes an average of 8 days, surpassing the standard of 7 days due to non-value-added activities, as known as waste. Although efforts to handle this issue have been made, they have introduced new challenges, particularly time waste in system adjustments. This study addresses the problem by employing TRIZ and Root Conflict Analysis (RCA+) methods to identify contradictions and propose innovative solutions to minimize waste. Findings reveal a 25% waste activity, with waiting activities contributing to 19% of the total. The research identifies 5 contradictions, each having both negative and positive impacts on the disassembly process. Proposed solutions involve implementing Magnetic Particle Testing or Ultrasonic Testing, organizing tiered boxes, offering understanding and inspection supervision to mechanics, utilizing a variety of wrench sizes, and developing a checklist for disassembly stages based on the sequence of main components.
Pengaruh Konsentrasi Zat Pengatur Tumbuh Ekstrak Bawang Merah dan Air Kelapa Pada Media MS Terhadap Pertumbuhan Planlet Anggrek Bulan (Phalaenopsis amabilis) Achmad Ilham; Nova Triani; Ida Retno Moeljani
G-Tech: Jurnal Teknologi Terapan Vol 8 No 1 (2024): G-Tech, Vol. 8 No. 1 Januari 2024
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33379/gtech.v8i1.3621

Abstract

Orchid plant propagation through conventional means is considered less effective and fairly long, so the propagation method used is tissue culture. This study aims to determine the effect of shallot extract concentration and coconut water on the growth of moon orchid (Phalaenopsis amabilis) planlets. The experimental design used was CRD two factors. The first factor is the concentration of shallot extract with 4 levels, namely 0 g/l, 20 g/l, 30 g/l, 40 g/l. The second factor is the addition of coconut water with 4 levels. The second factor is the addition of coconut water with 4 levels, namely 0 ml/l, 50 ml/l, 100 ml/l, 150 ml/l. Data analysis using ANOVA, followed by 5% BNJ test. The parameters used in this study include the addition of planlet height, root length and planlet fresh weight. The results showed that there was an interaction in the combination of 20 g/l shallot extract and 50 ml/l coconut water on all parameters studied.
Perancangan Arsitektur Enterprise Menggunakan Framework TOGAF ADM (Studi Kasus : UD Dirgahayu Maumere) Lindiana Ermilinda; Maria Wihelmina Lodan; Henderikus Basilius Nong Muda
G-Tech: Jurnal Teknologi Terapan Vol 8 No 1 (2024): G-Tech, Vol. 8 No. 1 Januari 2024
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33379/gtech.v8i1.3622

Abstract

UD Dirgahayu is a tranding business located in Maumere, Sikka Regency, East Nusa Tenggara, Indonesia which sells fertilizer and plant seeds to the public. Business processes at UD Dirgahayu still use manual systems such as sales transaction processes, making reports, checking stock, requesting product stock from suppliers, and product marketing reach is still narrow, namely only in Maumere City. This research tries to create an enterprise architecture plan to help align UD Dirgahayu’s business goals with information technology solutions to make them more effective and efficient. The method used in this research is TOGAF ADM, using five stages starting from vision architecture to opportunities and solutions. The results of this research are from a blueprint for vision architecture, business architecture, application architecture, data architecture, technology architecture, and opportunities and solutions that are expected to increase the efficiency of UD Dirgahayu’s activities.
The Influence of Tool Rotational Speed on Mechanical Properties of Friction Stir Welded Dissimilar AA5083-H112/AA6061-T6 Joints Andrian Permana; Mochammad Noer Ilman
G-Tech: Jurnal Teknologi Terapan Vol 8 No 1 (2024): G-Tech, Vol. 8 No. 1 Januari 2024
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33379/gtech.v8i1.3623

Abstract

The relatively new and innovative welding technique known as friction stir welding (FSW) has found widespread application in the automotive, railway, and aircraft industries. Due to engineering and financial considerations, welding of dissimilar metals is frequently carried out in these industries. During the friction stir welding process, three tool rotational speeds—910, 1500, and 2280 rpm—were utilized, while the welding speed remained constant at 30 mm/min. Several experimental works, including fractography, tensile tests, and observations of the microstructure, were carried out following welding. Results showed that ultimate tensile strength (UTS) and yield strength (YS) expanded as the tool rotational speed was expanded and the best UTS and YS, typically 228 MPa and 156 MPa at the speed of 2280 rpm. The precipitation of AA6061-T6 in the stir zone (SZ) and the increased degree of mixing were linked to the improved weld strengths.
Strategi Teknologi Produksi Xilooligosakarida dari Limbah Pertanian Tantry Febrinasari; Yusuf Irfan
G-Tech: Jurnal Teknologi Terapan Vol 8 No 1 (2024): G-Tech, Vol. 8 No. 1 Januari 2024
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33379/gtech.v8i1.3629

Abstract

The abundance of agricultural waste in Indonesia, in which the utilization is less than optimal, has encouraged a lot of research to develop technology for utilizing agricultural waste. One of the utilizations of lignocellulosic agricultural waste is as a potential raw material source for producing bioactive compounds that can be applied in functional food or nutraceutical preparations products. Xylo-oligosaccharides (XOS) are one of the oligosaccharide compounds that can be produced from the bioconversion process of lignocellulosic biomass. XOS is known to have potential as a promising prebiotic. Increasing global demand for XOS has driven various innovations in the search for efficient and environmentally friendly production methods. Therefore, developing a production strategy is very important to stimulate more sustainable XOS production. Until now, many researchers have developed different methods to obtain optimal XOS results, both in quantity and quality. This review will summarize some XOS production methodologies and strategies.
Penerapan Algoritma K-means dan Metode Elbow Untuk Clustering Tingkat Pencemaran Sampah Plastik pada Kabupaten/Kota di Seluruh Indonesia Candra Darmawan; Yesaya Setiyawan; Rahmat Ady Prasetyo; Sitti Khodijah Qurrota’Ayyun
G-Tech: Jurnal Teknologi Terapan Vol 8 No 1 (2024): G-Tech, Vol. 8 No. 1 Januari 2024
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33379/gtech.v8i1.3637

Abstract

Plastic waste is the most widely disposed of by humans, be it individuals, shops, and large companies. For this reason, data collection is needed in regions throughout Indonesia. From the data, it can be grouped what areas have a high, average, and low percentage of plastic waste. This can be done with data mining methods with one of the functions as clustering. The suitable algorithm to apply is K.means. In 2019, out of 242 districts/cities, there are 82 districts/cities cluster 0, 17 districts/cities cluster 1, and 143 districts/cities cluster 2. In 2020, out of 248 districts/cities, there are 73 districts/cities cluster 0, 25 districts/cities cluster 1, and 150 districts/cities cluster 2. In 2021, out of 236 districts/cities, there are 65 districts/cities cluster 0, 24 districts/cities cluster 1, and 147 districts/cities cluster 2. In 2022, there are 86 districts/cities cluster 0, 34 districts/cities cluster 1, and 191 districts/cities cluster 2.
Pemodelan Indeks Kebahagiaan di Indonesia Berdasarkan Pendekatan Mixed Geographically Weighted Regression Alfredi Yoani; Fina Insyiroh; Leni Sartika Panjaitan; Toha Saifudin; Suliyanto
G-Tech: Jurnal Teknologi Terapan Vol 8 No 1 (2024): G-Tech, Vol. 8 No. 1 Januari 2024
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33379/gtech.v8i1.3639

Abstract

The well-being of society, involving the fulfilment of basic needs and opportunities for education and employment, can be measured through the happiness index. This research aims to assist the Indonesian government in achieving Sustainable Development Goal 3 related to Health and Well-being. It is hoped that by comprehending these factors, the government can improve the health and well-being of the Indonesian population. The happiness index varies across different geographical regions due to factors such as culture, social dynamics, and the environment, which can have different impacts from one region to another. Given the randomness in data patterns stemming from the diverse provinces in Indonesia, this study employs the Mixed Geographically Weighted Regression (MGWR) method. Results reveal that the MGWR model, utilizing a fixed Gaussian kernel weight, yields the lowest Akaike’s Information Criterion Corrected and the highest at 87.2%, underscoring its precision in modeling the happiness index in Indonesia.
Implementasi Fuzzy Inference System Menggunakan Metode Fuzzy Mamdani Untuk Optimalisasi Produksi Tahu Ansar; Rahmat Karim; Salim; Elvi Khudriah
G-Tech: Jurnal Teknologi Terapan Vol 8 No 1 (2024): G-Tech, Vol. 8 No. 1 Januari 2024
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33379/gtech.v8i1.3650

Abstract

Tofu production businesses are found in various regions, including Kolaka Regency. Tofu production businesses, which are generally on a household scale, usually depend heavily on achieving daily sales targets because tofu has a limited storage time. To avoid losses, tofu production must be carried out optimally. This research aims to optimize daily tofu production through implementing a Fuzzy inference system using the Mamdani method. This research depends on the availability of a dataset whose analysis process is experimental and numerical. The research results show that the fuzzy model can optimize daily tofu production from January to March. This claim is supported by the level of accuracy in the sufficient category, namely 77.7% when using RMSE, and the very good category when using MPE, namely 91.01%. Therefore, the fuzzy inference system model produced in this research can be used as an alternative for tofu industry businesses in determining daily tofu production.
Monitoring Akusisi Data Manajemen Energi Listrik, Suhu dan Kelembaban Laboratorium Berbasis Internet of Things (IoT) Ramona Dyah Safitri; Junaidi Akbar
G-Tech: Jurnal Teknologi Terapan Vol 8 No 1 (2024): G-Tech, Vol. 8 No. 1 Januari 2024
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33379/gtech.v8i1.3656

Abstract

In the use of electric energy and the comfort of a person's work in the laboratory, standard limits are required, therefore data management such as voltage, current, power, energy, frequency, power factor in terms of electricity usage, temperature and humidity in terms of comfort is needed to improve a person's work or study, so routine measurements are carried out by manual audits. With the Internet of Things (IoT) technology, it can make it easier to monitor a device from afar. The results of the comparison of sensors and measuring instruments on voltage obtained an error value of 0.0871% and efficiency of 99.91%, current obtained an error value of 4.76% and 95.24% efficiency, power obtained an error value of 7.59% and 92.38% efficiency, energy obtained an error value of 4.813% and 95.17% efficiency, frequency obtained an error value of 0.02% and 99.98% efficiency, power factor obtained an error value of 3.03% and 96.96% efficiency, temperature obtained an error value of 0.73% and 99.26% efficiency, humidity obtained an error value of 5.45% and 95.54% efficiency.
Kajian Pemasangan Lampu Penerangan Jalan Umum dengan Panel Surya Sebagai Sumber Energi Alternatif di Politeknik Negeri Balikpapan Subur Mulyanto; Yudi Kurniawan; Arwin; Herdian Dwimas; Nurul Huda
G-Tech: Jurnal Teknologi Terapan Vol 8 No 1 (2024): G-Tech, Vol. 8 No. 1 Januari 2024
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33379/gtech.v8i1.3669

Abstract

Politeknik Negeri Balikpapan berupaya mendukung penurunan emisi gas rumah kaca melalui pengembangan sumber energi terbarukan. Hal ini diwujudkan dalam pemasangan lampu Penerangan Jalan Umum (PJU) tenaga surya yang dipasang di 11 titik lokasi. Dari penelitian ini telah ditentukan 11 titik lokasi pemasangan instalasi PJU tenaga surya pada jalan sepanjang 250 meter menggunakan lampu DC 12V24W. Penyimpanan energi yang diperoleh dari solar cell menggunakan baterai berkapasitas 50Ah untuk menangkap energi matahari menggunakan panel surya 100 wattpeak. Jarak antar tiang adalah jarak tiap tiang lampu PJU yang akan dipasang. Dari penelitian ini didapatkan jarak antar tiang adalah 8,6 meter, dan jarak tiang dari bahu jalan adalah 2,036 meter.

Page 35 of 90 | Total Record : 897

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