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Artikel Jurnal
The effect of steering tail fin on performance on double pillars hybrid vertical axis wind turbine (Sultan Wind Turbine V-4.5)
One of the methods to increase the efficiency of wind turbines is to add directional fins so that the wind turbine faces and is in the same direction as the wind. The use of triangular fins will slightly increase the performance of wind turbines compared to rectangular and trapezoidal shapes. The…
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Artikel Jurnal
Development of a vibration monitoring system for rotating machine models using fast fourier transform
Judul: Pengembangan sistem pemantauan getaran untuk model mesin berputar menggunakan fast fourier transformTitle: Development of a vibration monitoring system for rotating machine models using fast Fourier transformSering kali terjadi kerusakan mekanis pada mesin silinder berputar . Kerusakan itu…
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Artikel Jurnal
Real-time detection of fruit ripeness using the YOLOv4 algorithm
Indonesia is a country that has many types of commodities of various kinds of fruit. Based on BPS data, fruit production reached 22 million tons in 2019, an increase of 5% compared to 2018. However, with such a large production volume, most fruit inspection (sorting) processes in Indonesia are…
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Artikel Jurnal
Implementation of an omnidirectional antenna on a 4G repeater with a working frequency of 1800 MHZ
In this study, an omnidirectional antenna is used as a 4G signal amplifier with a frequency of 1800 Mhz. Omnidirectional antennas typically have a gain of about 3-12 dBi. The application of an omnidirectional antenna on a 4G signal amplifier repeater is used as a donor antenna facing the base…
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Artikel Jurnal
The effect of current strength on tensile strength and impact toughness of cast iron welded joints
Cast iron is a high-carbon iron-carbon alloy. Cast iron is difficult to weld because of the high carbon concentration. A good connection necessitates the application of specific strategies and processes. This study investigates the effect of current strength on the mechanical properties of tensile…
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Artikel Jurnal
Transmission and reflection of waves on curtain wall breakwater
Judul: Gelombang transmisi dan refleksi pada pemecah gelombang dinding tiraiTitle: Transmission and reflection of waves on curtain wall breakwater Pemecah gelombang sangat dibutuhkan pada kolam pelabuhan untuk mendapatkan perairan yang tenang sehingga kapal dapat naik/turunkan penumpang dan…
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Artikel Jurnal
Leaching Cu from e-waste PCB using thiourea solution and oxidizing H2O2
Technological advances that occur in developed and developing countries impact increasing the amount of electronic waste (e-waste). In Indonesia, the growth rate of e-waste is predicted to increase by ±23.2% in 2028. The impact that e-waste can have on human health requires processing electronic…
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Artikel Jurnal
Optimizing the placement and construction capacity of the Mantingan Substation using the imperialist competitive algorithm method
Judul: Optimasi penempatan dan kapasitas pembangunan Gardu Induk Mantingan dengan metode imperialist competitive algorithmTitle: Optimizing the placement and construction capacity of the Mantingan Substation using the imperialist competitive algorithm method Optimasi penempatan dan kapasitas…
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Artikel Jurnal
Analysis of the application of the lean six sigma method to minimize waste in the plywood production process
PT. XYZ is a manufacturing company that produces plywood. The problem that this plywood company has faced is that in the plywood production process, there are still many activities classified as waste, thus disrupting productive activities. Therefore, identification of waste and the factors that…
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Artikel Jurnal
Comparative analysis of increasing CBR value of soil with adding bamboo leaf ash
Consider the importance of the subgrade strength in road building since its strength impacts the soil's performance in absorbing the load on it. One of the efforts to improve the subgrade, which has a low bearing capacity, is by stabilizing the soil using bamboo leaf ash. This study aims to analyze…
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Artikel Jurnal
The leaching of South Kalimantan ilmenite decomposed by NaOH using hydrochloric acid solution
Judul: Pelindian ilmenit Kalimantan Selatan terdekomposisi basa NaOH menggunakan larutan asam klorida Title: The leaching of South Kalimantan ilmenite decomposed by NaOH using hydrochloric acid solutionIndonesia adalah negara dengan sumber daya mineral yang berlimpah. Kekayaan sumber daya mineral…
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Artikel Jurnal
Design of refuse derived fuel (RDF) printing machine with a capacity of 50 kg/h
Judul: Perancangan mesin cetak refuse derived fuel (RDF) kapasitas 50 kg/jam Title: Design of refuse-derived fuel (RDF) printing machine with a capacity of 50 kg/hPada saat ini penggunaan bahan bakar batu bara di Indonesia semakin meningkat, padahal penggunaannya memiliki banyak dampak buruk…
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Artikel Jurnal
Durability characteristics of millet hush ash: A study on self-compacting concrete
Judul: Karakteristik daya tahan abu sekam milet: Studi tentang beton SCC (self-compacting concrete) Title: Durability characteristics of millet hush ash: A study on self-compacting concreteDaya tahan adalah salah satu perhatian utama dalam industri beton. Beberapa upaya telah dilakukan untuk…
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Artikel Jurnal
Making duck bone meal as a source of calcium using the sidrap protein hydrolysis technology from poultry-based conventional food processing waste
This research is a study to improve duck bone meal characteristics with higher calcium and protein content. This study aims to determine the best conditions of modification processing of duck bone meal based on the chemical characteristics and the highest calcium content. The research method was…
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Artikel Jurnal
Design and build a waste power plant (WPP) at the University of Singaperbangsa Karawang
Judul: Rancang bangun pembangkit listrik tenaga sampah (PLTSa) di lingkungan Universitas Singaperbangsa Karawang Title: Design and build a waste power plant (WPP) at the University of Singaperbangsa KarawangSampah merupakan salah satu permasalahan yang terus dicari solusinya. Volume sampah dari…
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Artikel Jurnal
Effect of flood risk management methods on urban flooding: Article review
Banjarmasin is the capital city of South Kalimantan Province and has a low topography, and is traversed by the Barito River. In addition, Banjarmasin City is also a Java Sea route, so it has a high level of vulnerability to sea-level rise. During the rainy season, most of the Banjarmasin area…
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Artikel Jurnal
Optimization of supply and demand of bread sales as an over production solution in Hani Cake and Bakery
Monte Carlo simulations are used to model the probability of different outcomes in a process that cannot easily be predicted due to the intervention of random variables. In this case, Monte Carlo develops several policies used to optimize income costs at Hani Cake and Bakery. Hani Cake and Bakery…