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INDONESIA
Info-Teknik
Published by Universitas Lambung Mangkurat
ISSN : 08532508     EISSN : 24599964     DOI : http://dx.doi.org/10.20527
Core Subject : Engineering,
Engineering
Jurnal Info – Teknik menerbitkan artikel – artikel karya orisinil dan signifikan pada Bidang Rekayasa Teknik.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 425 Documents
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Analisis Variabel yang Mempengaruhi Kepuasan Pemilihan Moda Transportasi Online di Kota Palangka Raya WIBOWO, KARIN MELINDA
INFO-TEKNIK Vol 26, No 2 (2025): INFOTEKNIK VOL. 26 NO. 2 DESEMBER 2025
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v26i2.22824

Abstract

Everyone needs transportation to fulfill their living needs, such as for work, school, recreation and social interaction. Travel to various places in Palangka Raya City with online transportation modes such as Gojek and Grab. For the choice of transportation mode, travelers consider various factors such as comfort, cost, security, affordability, regularity, waiting time for departure and length of travel time. In this study, data collection was obtained from questionnaires and respondents who considered the respondent's education, the number of two-wheeled vehicles owned, the costs incurred for transportation, and the income of each respondent, as well as the purpose of each respondent's travel. From the results of the questionnaire that has been distributed, a descriptive analysis is then carried out to determine which variable is superior in the selection of online transportation mode by respondents. The results obtained showed that respondents chose to strongly agree on the selection of online transportation mode by considering several superior variables, namely Comfort Level (X1) with a percentage of 68.3%, Safety Level (X3) with a percentage of 62.5%, Safety Level with a percentage of 59.2%. For the Agree option, respondents chose several variables, namely Regularity Level (X5) with a percentage of 36.7%, Affordableness Level (X6) with a percentage of 41.7% and Travel Time Length (X7) with a percentage of 43.3%, who chose Gojek and Grab as the chosen Online Transportation.
PERMODELAN GENANGAN BANJIR KALA ULANG PADA DAS KAHAYAN DI KOTA PALANGKA RAYA Fariskha, Ravita Diah
INFO-TEKNIK Vol 26, No 2 (2025): INFOTEKNIK VOL. 26 NO. 2 DESEMBER 2025
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v26i2.22904

Abstract

Rivers are one of the water resources that have a number of potentials that can be utilized for human welfare. Natural phenomena that threaten the existence of human life in several regions in Indonesia every rainy season are floods. Kahayan River is one of the rivers in Central Kalimantan that often experiences flooding. Kahayan River has an area of 81,684 km2, a length of 600 km, a width of 500 m and a depth of up to 7 m (Indonesia, 2016). Hydrologic Engineering Center-River Analysis System (HEC-RAS) software is a tool to determine the flow of water in a river. Simulation in HEC-RAS can be used to simulate floods well through steady flow and unsteady flow analysis. This research was conducted in the Kahayan River, Palangka Raya City, Central Kalimantan, starting from the Kahayan Bridge to Rambang Port. This research is included in the type of Exploratory Research, where researchers explore, analyze and generalize a phenomenon or condition through surveys and field observations. In this study, daily water level data is converted into daily discharge using the rating curve equation, discharge with a maximum value for 2013-2022 is determined to obtain the maximum annual discharge value. Based on the results of the discharge frequency analysis, the discharge for the 20, 50, and 100 year return periods is 1,459.2846 m³/s, 1,567.5594 m³/s, and 1,685.4194 m³/s, respectively. Return period discharge is one of the boundary conditions in flow simulation using 1-Dimensional HEC-RAS. Based on the simulation results, the maximum flood water level elevation for a 20-year return period is 4.98 m – 6.73 m. The 50-year return period ranges from 5.12 m – 6.9 m, while the 100-year return period is at an elevation of 5.27 m – 7.08 m.
Optimasi Produksi Fuel Gas dan LPG Pada Unit Flare Gas Recovery System Dengan Pengaturan Variabel Temperatur Alat Inter Cooler dan After Cooler Sulardi, Sulardi Sulardi
INFO-TEKNIK Vol 26, No 2 (2025): INFOTEKNIK VOL. 26 NO. 2 DESEMBER 2025
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v26i2.23007

Abstract

Permasalahan yang dihadapi adalah masih terbatasnya kapasitas produksi fuel gas dan produksi LPG pada unit flare gas recovery system. Tujuan penelitian adalah mengoptimalkan jumlah produksi fuel gas dan produksi dengan pengaturan variabel temperatur air pendingin pada peralatan inter cooler dan after cooler. Hasil penelitian menunjukan bahwa pengaturan temperature air pendingin intercooler pada 28-30oC dapat menghasilkan produksi fuel gas dari 30,5% menjadi 31,5% dan produksi LPG dari 3,1% menjadi 3,3% dari aliran feed intake. Pengaturan temperature air pendingin after cooler pada temperature 25-27oC dapat mengasilkan produksi fuel gas 29,5% dan produksi LPG 4.1%. Inovasi optimasi dengan pengaturan temperature air pendingin inter cooler dan after cooler dapat menjadi solusi pilihan jenis produksi apa yang akan dioptimasi pada unit FGRS. Kata kunci : optimasi, fuel gas, LPG, inter cooler, after cooler.
PENGARUH KECEPATAN PEMAKANAN DAN KECEPATAN PUTARAN SPINDEL TERHADAP KEKASARAN PERMUKAAN MATERIAL ASSAB 760 DENGAN METODE DRY MACHINING PROCESS Salam, Damar Kurnia
INFO-TEKNIK Vol 26, No 2 (2025): INFOTEKNIK VOL. 26 NO. 2 DESEMBER 2025
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v26i2.22628

Abstract

The purpose of this study is to determine the effect of variations in feed rate and spindle speed on the surface roughness of ASSAB 760 material using the dry machining process method. The machining process was carried out using a DAHLIH CNC milling machine, model MCV 1020BA, with the dry machining process method. This study was conducted experimentally using 9 specimens of ASSAB 760 material, with variations in feed rate of 50 mm/min, 100 mm/min, and 150 mm/min, and spindle speed of 1750 rpm, 2000 rpm, and 2250 rpm.The results of the study indicate that variations in feed rate and spindle speed significantly affect surface roughness, as proven by α = 0.5 through the calculation of f-value and p-value. The test results also show that the feed rate variable contributes 65% to the variation in surface roughness values. The combination of a 150 mm/min feed rate and 1750 rpm spindle speed resulted in the lowest average surface roughness value of 1.706 μm. However, the highest surface roughness value, at 1.681 μm, was obtained at point 1 with parameters of a 150 mm/min feed rate and 2250 rpm spindle speed.
UPAYA PENGGUNAAN SEPEDA KONVENSIONAL SEBAGAI TRANSPORTSI RAMAH LINGKUNGAN UNTUK TUJUAN SEKOLAH DI KOTA PALANGKA RAYA Panjaitan, Evita
INFO-TEKNIK Vol 26, No 2 (2025): INFOTEKNIK VOL. 26 NO. 2 DESEMBER 2025
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v26i2.22740

Abstract

The selection of the right mode of transportation is very important for students to reach school safely and on time. This research aims to identify what efforts can be made to encourage students to choose conventional bicycles as their preferred mode of transportation for school purposes. This research uses a survey method by distributing questionnaires to students in several schools. The data collected includes information about the modes of transportation used, the distance between home and school, transportation costs, and other factors that influence the choice of transportation mode. Data collection was conducted using the online platform Google Forms. The data was analyzed with the help of SPSS software to determine which variables are most significant in increasing the ose of bicycles as an enviromentanlly friendly transportation option for educational travel in the city of Palangka Raya for junior high and high school students. The main model used is the binomial logit model to determine the efforts in using environmentally friendly transportation modes, in this case, conventional bicycles. Based on the study results with 281 respondents, the variables affecting the choice of transportation modes for junior high and senior high school students are Environmental Concern and Ownership of a Conventional Bicycle. Keywords: Transportation mode choice, environmentally friendly, conventional bicycle

Page 43 of 43 | Total Record : 425

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