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“ANALYSIS OF HEADWAY TIME DISTRIBUTION AND VEHICLE GAP” (Case studi intersection 3 muara badak kutai kartanegara) JAYA, IRFAN
KURVA S JURNAL MAHASISWA Vol 1, No 1 (2018)
Publisher : KURVA S JURNAL MAHASISWA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (890.219 KB)

Abstract

Traffic is a means of moving from one place to another. Therefore traffic is an important problem. If traffic flow is disrupted or congestion occurs. The mobility of the community will also experience disruption. These disturbances will have a negative impact on the surrounding community.This research took place at intersection 3 muara badak kabupaten kutai kartanegara. Calculation analysis using travel time method. travel clock method and headway method to calculate headway time distribution.Based on the calculation of the maximum headway time of four–wheeled vehicles at the intersections samarinda-bontang it reaches 2.69 seconds and the average is 20 minutes for 1 hour, maximum time headway for four-wheeled vehicles at intersections muara badak-samarinda it reaches 2.38 seconds and the average is 20 minutes for1 hour, maximum time headway for four-wheeled vehicles at intersections bontang-muara badak it reaches 4.9 seconds and the average is 20 minutes for 1 hour.From these calculation it can be  concluded in the medium category.
Effect of cogongrass biochar enriched with nitrogen fertilizer dissolved in seaweed liquid extract on soil water content of Ultisol Kilowasid, Laode Muhammad Harjoni; Alam, Syamsu; Rakian, Tresjia Corina; Ansar, Nurul Awalia; Nurfadillah; Ramdan, Nurfatihah Hijrah; Jaya, Irfan; Suryana; Agustin, Widia; Rahni, Nini Mila; Mashuni; Safuan, La Ode
Journal of Degraded and Mining Lands Management Vol. 11 No. 3 (2024)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2024.113.5585

Abstract

Ultisol dry land is characterized by significantly low organic carbon content, an important factor influencing soil water content and physico-chemical dynamics. The addition of N fertilizer dissolved in seaweed liquid extract as an enrichment solution can change the character of biochar. Therefore, this study aimed to analyze the characteristics of cogongrass biochar enriched with dissolved N fertilizer in seaweed extract of different species and assess its impact on soil water content in Ultisol. Urea was used as a nitrogen source, and biochar enriched with N fertilizer dissolved in seaweed liquid extract from Kappapychus alvarezii, Sargassum sp., and Ulva lactuca was tested. Biochar dose used was 20% of soil weight with a 10% extract concentration for each type. Furthermore, five-level treatments were tested in a pot experiment, namely (i) without biochar, (ii) biochar unenriched, (iii) enriched with N fertilizer dissolved in K. alvarezii extract, (iv) enriched with N fertilizer dissolved in Sargassum sp. extract, and (v) biochar enriched with N fertilizer dissolved in U. lactuca extract. Each treatment was repeated three times, following a randomized block design. The results showed that cogongrass biochar enriched with N fertilizer dissolved in seaweed extract had a more amorphous surface morphology structure. The proportion of elements and functional groups in cogongrass biochar changed. Enriched biochar increased Ultisol moisture levels, but water holding capacity and retention were lower than the unenriched sample.
IDENTIFICATION OF TEACHERS' PROBLEMS IN USING AI (ARTIFICIAL INTELLIGENCE) TECHNOLOGY IN THE LEARNING PROCESS AT MAN 01 KOLAKA Juwirda, Juwirda; oktavia, komang opie; Asriani, Sari; Afdal, Muhamad; Aditya, Muhammad Radit; Nurdin, Nurdin; Amanah, Siti; Jaya, Irfan; Hasna, Wa; Hariyadi, Eko
Geographica: Science and Education Journal Vol 6, No 2 (2024): December
Publisher : USN Kolaka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31327/gsej.v6i2.2316

Abstract

This study aims to identify the problems faced by teachers in using artificial intelligence technology (AI) in the learning process at MAN 01 Kolaka. The main focus of the research is to examine the inhibiting factors, such as lack of understanding of technology, accessibility, and readiness of educational infrastructure. Using a qualitative descriptive approach, data were collected through interviews, observations, and documentation.  The instruments used were observation sheets and interview guidelines. This research was conducted at MAN 1 Kolaka with 10 teachers as research subjects. The data analysis technique used is a qualitative data analysis technique according to Miles and Huberman. The results show that while AI has great potential to improve the quality of learning, several key obstacles, including limited teacher training and resistance to new technologies, are challenges that must be overcome. Research recommendations include the development of AI technology training programs for teachers and the improvement of supporting facilities in schools.
Respon Siswa SMA terhadap Challenge Based Learning Berbasis Karakter Har, Besse Harnanengsi; Syaharuddin, Syaharuddin; Jaya, Irfan
Prosiding Seminar Nasional Fakultas Tarbiyah dan Ilmu Keguruan IAIM Sinjai Vol 3 (2024): Volume 3 Tahun 2024
Publisher : Fakultas Tarbiyah dan Ilmu Keguruan (FTIK) Institut Agama Islam Muhammadiyah Sinjai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47435/sentikjar.v3i0.3836

Abstract

Penelitian ini bertujuan untuk menganalisis respon siswa terhadap model pembelajaran Challenge Based Learning (CBL) berbasis karakter dalam mata pelajaran matematika. Penelitian ini dilakukan dengan menggunakan metode deskriptif kualitatif. Data penelitian diperoleh melalui observasi, wawancara, dan angket yang diberikan kepada siswa SMA kelas XI. Hasil penelitian menunjukkan bahwa respon siswa terhadap CBL berbasis karakter dalam matematika secara keseluruhan positif. Siswa menunjukkan antusiasme dan motivasi belajar yang tinggi saat mengikuti pembelajaran dengan model ini. Mereka juga menunjukkan peningkatan dalam hal kerjasama, komunikasi, dan karakter seperti tanggung jawab, disiplin, dan pantang menyerah. Penelitian ini menyimpulkan bahwa CBL berbasis karakter merupakan model pembelajaran yang efektif untuk meningkatkan respon dan hasil belajar matematika siswa. Model ini dapat membantu siswa untuk mengembangkan karakter dan keterampilan abad ke-21 yang mereka perlukan untuk menjadi pembelajar yang mandiri dan sukses.Kata kunci: Challenge Based Learning, karakter, respon siswa, matematika