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All Journal Jurnal JTIK (Jurnal Teknologi Informasi dan Komunikasi) International Journal of Global Operations Research Al-Aqlu : Jurnal Matematika, Teknik dan Sains
Fajar, Yusuf
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Engineering Mathematics

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ANALISIS PANJANG ANTRIAN DAMPAK REKAYASA LALU LINTAS CIPAGANTI MENGGUNAKAN SIMEVENTS MATLAB Chaeruddin, Sultan; Fajar, Yusuf; Harahap, Erwin
Jurnal JTIK (Jurnal Teknologi Informasi dan Komunikasi) Vol 4, No 1 (2020): JTIK
Publisher : KITA Institut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35870/jtik.v4i1.98

Abstract

Car and motorcycle vehicles are vital needs in this modern era to help someone to a certain place. Inevitably the increasing number of cars and motorbikes with fewer roads to accommodate these vehicles results in congestion or long queues that are so crowded. So the government also conducted several methods to unravel congestion, including traffic engineering. This method can be said to be successful if congestion in an area can decrease from usual. However, not every successful traffic engineering, even congestion is getting worse. Therefore we need to test the results of traffic engineering. One of them is using the M/M/1 queuing model with Poisson distribution and then simulated by SimEvents in Matlab. As researchers, we can also provide solutions to unravel these bottlenecks. The traffic engineering that we are going to analyze is Cipaganti traffic engineering, Bandung. Keywords:queue; traffic engineering; SimEvents; cipaganti.
Implementation of Cheapest Insertion Heuristic Algorithm in Determining Shortest Delivery Route Fargiana, Farid; Respitawulan, Respitawulan; Fajar, Yusuf; Suhaedi, Didi; Harahap, Erwin
International Journal of Global Operations Research Vol. 3 No. 2 (2022): International Journal of Global Operations Research (IJGOR), May 2022
Publisher : iora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47194/ijgor.v3i2.137

Abstract

The buying and selling transaction system that many people use today is the online buying and selling system. In this system, there is a process of goods delivery by one branch of a freight forwarder in Indonesia, namely SiCepat Express Baleendah. In the process of shipping goods, a delivery route with the shortest path is needed in order to minimize of the goods delivery process. The problem of the route of goods delivery can be solved by one of the algorithms in the Traveling Salesman Problem (TSP), namely the Cheapest Insertion Heuristic (CIH) Algorithm. This study aims to determine the shortest route and distance for goods delivery using the CIH Algorithm by the Asymmetric TSP CIH application, as well as knowing its efficiency compared to the route that used by SiCepat Express Baleendah. The result shows that the use of the CIH Algorithm is proven to produce a more efficient delivery route than the route created by SiCepat Express Baleendah. Based on the goods delivery route from SiCepat Express Baleendah, the result of the total distance is 18.55 km. On the other hand, based on the CIH Algorithm, the delivery route obtained result is 13.45 km. The efficiency of using the CIH Algorithm is 27.48% better than the result from SiCepat Express Baleendah route.
FORMULASI DAN EVALUASI SEDIAAN SABUN PADAT DENGAN VARIASI KONSENTRASI EKSTRAK DAUN SAGA (ABRUS PRECATORIUS L.): Formulation And Evaluation Of Solid Soap Preparations With Concentrations Of Saga Leaf Extract (Abrus Precatorius L.) Natasya, Elvara; Putri P, Amanda Amelia; Afikasari, Dhian; Cahyaningsih, Seftiani; Fajar, Yusuf
Al-Aqlu: Jurnal Matematika, Teknik dan Sains Vol. 3 No. 1 (2025): Januari 2025
Publisher : Yayasan Al-Amin Qalbu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59896/aqlu.v3i1.116

Abstract

Saga leaves (Abrus Precatorius L.) are vines that originate from India. The leaves of the saga plant are known to be effective in treating diarrhea, tonsillitis, ulcers and hemorrhoids. The presence of secondary metabolite compounds which include saponins, flavanoids, alkaloids and steroids have antibacterial potential. The ain of this research is to find out how to make solid soap using saga leaf extract and evaluate the test results after making solid soap with saga leaf extract to determine the quality of the saga leaf extract solid soap preparation. The research method used was an experimental method with variations of saga leaf extract in three formulas, namely F1 1.5%, F2 2.5%, and F3 3.5%. the results showed that the solid soap was homogenous, in F1 it was yellow, F2 was mustard yellow, F3 was greenish yellow, had a typical vanilla odor, had a semi-solid texture, the average pH test results were respectively F1 11.59 ± 0.03, F2 11.81 ± 0.02, and F3 11.85 ± 0.01, average foam height test results F1 6.3 cm  ± 0.41 cm, F2 6.4 cm  ± 0.40 cm, F3 6.1 cm  ± 0.17 cm, average water content test results for F1 50.46%  ± 0.20%, F2 48.35%  ± 0.19%, and F3 45.55%  ± 0.24 %. Based on data analysis, if the test results show normal and homogeneous then the one-way the Kruskal-Wallis test can be continued. It is known that variations in the concentration of saga leaf extract have a significant effect on the organoleptic test, homogenity test, foam height test but not significantly on the pH test and water content test
Co-Authors Afikasari, Dhian Cahyaningsih, Seftiani Chaeruddin, Sultan Didi Suhaedi Erwin Harahap Fargiana, Farid Natasya, Elvara Putri P, Amanda Amelia Respitawulan, R