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Al-Aqlu : Jurnal Matematika, Teknik dan Sains
Published by Yayasan Al-Amin Qalbu
ISSN : -     EISSN : 29854369     DOI : https://doi.org/10.59896/aqlu.v1i2
Core Subject : Science, Education, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Engineering Mathematics
Al-Aqlu : Jurnal Matematika, Teknik dan Sains (e-ISSN:2985-4369) merupakan wadah bagi para peneliti, akademisi dan praktisi untuk mempublikasikan karya ilmiah dalam bidang matematika, teknik dan sains
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 57 Documents
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BERPIKIR KOMPUTASI SISWA DALAM MENINGKATKAN PEMBELAJARAN: STUDI LITERATUR: Students' Computational Thinking In Improving Learning: Literature Study Sastika, Weni; Yahfizham, Yahfizham
Al-Aqlu: Jurnal Matematika, Teknik dan Sains Vol. 2 No. 2 (2024): Juli 2024
Publisher : Yayasan Al-Amin Qalbu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59896/aqlu.v2i2.92

Abstract

The purpose of this study is to provide a study on the thinking process to improve the learning process. This research uses a research method obtained from the publication of research articles in scientific journals previously. It includes three stages: setting, synthesizing, and identifying. Based on the results obtained, mathematics is a subject that can introduce and develop computational thinking skills in students.
ANALISIS KEMAMPUAN PEMECAHAN MASALAH MATEMATIS DENGAN BERPIKIR KOMPUTASI PADA SISWA SMP : SYSTEMATIC LITERATURE REVIEW: Analysis Of Mathematical Problem Solving Ability Using Computational Thinking In Junior High School Students : Systematic Literature Review Ghifari, Muhammad Al; Yahfizham, Yahfizham
Al-Aqlu: Jurnal Matematika, Teknik dan Sains Vol. 2 No. 2 (2024): Juli 2024
Publisher : Yayasan Al-Amin Qalbu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59896/aqlu.v2i2.95

Abstract

Abstrak The computational thinking abilities of junior high school students are in the category of not meeting the criteria, many of the students make mistakes in finding mathematical solutions. This study will focus on problem solving abilities using computational thinking in junior high school students. The method used in this research is Systematic Literature Review (SLR) . This research method was carried out by analyzing, researching, assessing, cross-checking and interpreting all existing research results. The researcher categorized the computational thinking level of junior high school students from the articles referred to, namely high, medium and low level thinking. The research results from the 5 articles sampled show that junior high school computing thinking abilities are in the middle or categorized as moderate
ANALISIS WAKTU DAN BIAYA MENGGUNAKAN METODE TIME COST TRADE OFF PADA PROYEK RUMAH TINGGAL 2 LANTAI: Time And Cost Analysis Using The Method Time Cost Trade Off In 2 Story Residential House Projects Nakti, I Putu Yogistha; Dharma S., Bagus Widhi; Dewi, Baiq Reni Sari
Al-Aqlu: Jurnal Matematika, Teknik dan Sains Vol. 2 No. 2 (2024): Juli 2024
Publisher : Yayasan Al-Amin Qalbu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59896/aqlu.v2i2.96

Abstract

The purpose of this study was to analyze time and costs with an initial Time Schedule using the Time Cost Trade Off method in a 2-storey Residential House Development Project. The method used to complete this research is descriptive method by examining case studies. The results showed that the addition of overtime hours had an optimum duration of 146 HK or 3% which resulted in an increase in project costs due to overtime hours of Rp. 2,628,281.25 so that the project cost increases from Rp. 767,230,000.00 to Rp. 769,858,281.25 Meanwhile, the addition of the number of workers with an optimum time of 146 HK resulted in an increase in project costs of IDR 95,000.00 so that the project cost increased from IDR. 767,230,000.00 to Rp. 76.325,000.00 . From the results of this study it can be seen that adding workers is more efficient than adding overtime hours with greater cost advantages.
ANALISA DEBIT RENCANA BENDUNG JANGKOK: Discharge Analysis of The Jangkok Dam Plan Sujendra, I Nengah Eka; Yamin, Muhamad; Aminullah, Aminullah
Al-Aqlu: Jurnal Matematika, Teknik dan Sains Vol. 2 No. 2 (2024): Juli 2024
Publisher : Yayasan Al-Amin Qalbu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59896/aqlu.v2i2.97

Abstract

The purpose of this research is to know the value of PMP (Probable Maximum Precipitation), to analyze the design flood discharge to evaluate the magnitude of the design flood discharge at various return periods of 2, 5, 10, 20, 25, 50, 100 years, to analyze the peak discharge, peak time and time basis using the Snyder Synthetic Unit Hydrograph. In this research conducted in the Jangkok Watershed (DAS), West Lombok Regency, the type of data used in this study was data obtained from secondary data, literature studies, various literature, as well as observational and measurement data at the research location. The annual maximum rainfall is 121.78 mm while the average rainfall is 12.178 mm, the PMP (Probable Maximum Precipitation) value on the Jangkok river is 79.563 mm, the design flood seed with a return period of 2, 5, 10, 20, 25, 50, and 100 years using the Haspers method obtained respectively: 126.70 mm; 292.11 mm, 584.23 mm, 1168.47 mm, 1460.58 mm, 2921.17 mm, 5842.35 mm, peak time (Tp), peak discharge (Qp) and base time (Tb) after calculations using the developed Snyder HSS method are obtained for: Tp = 0.538 hours; Qp = 147.364 m3 and Tb = 0.059 hours.
PENERAPAN METODE RUNGE KUTTA FEHLBERG PADA PERSAMAAN LOGISTIK DALAM MEMPREDIKSI PERTUMBUHAN PENDUDUK DI SULBAR: Application Of The Runge Kutta Fehlberg Method In Logistic Equations in Predicting Population Growth in Sulbar Syarfiah, Syarfiah; Irwan, Muh.; Anugrawati, Sri Dewi
Al-Aqlu: Jurnal Matematika, Teknik dan Sains Vol. 2 No. 2 (2024): Juli 2024
Publisher : Yayasan Al-Amin Qalbu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59896/aqlu.v2i2.99

Abstract

This research discusses the application of the Runge Kutta Fehlberg method in predicting population growth in West Sulawesi through the logistic equation. Employing applied research methodology, the study seeks to forecast future population trends in the West Sulawesi province. Utilizing a step size of h = 0.01 and a growth rate of m = 0.0198, the Runge-Kutta Fehlberg method (RKF 45) was applied, starting from an initial population value  of   P (t0) = 1.419.229 individuals, resulting in a projected population of P (t10) = 1.506.142 individuals. These findings demonstrate the applicability of the Runge-Kutta Fehlberg (RKF 45) method in predicting population dynamics in West Sulawesi Province.
VALIDITAS MEDIA PEMBELAJARAN TIGA DIMENSI BOLA LAPISAN BUMI UNTUK MENINGKATKAN MINAT BELAJAR SISWA: Validity Of Three-Dimensional Learning Media Ball Layers Of The Earth To Increase Students' Interest In Learning Sari, Chika Ameta; Nisa`, Siti Khoirotun; Putri, Meutia Revana Cahya; Marshelyna, Mela; Masfuah, Siti
Al-Aqlu: Jurnal Matematika, Teknik dan Sains Vol. 2 No. 2 (2024): Juli 2024
Publisher : Yayasan Al-Amin Qalbu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59896/aqlu.v2i2.102

Abstract

This research is part of development research which aims to test the validity of the three-dimensional learning media of the earth's layers in the material about getting to know our earth on students' learning interest. The subjects of this research were two teachers and four fifth grade elementary school students who provided validation sheets to the teachers and questionnaire instruments to the students. Next, the data was analyzed quantitatively descriptively. Based on data analysis, the data obtained shows that the average percentage of indicators of student interest in learning is 59.37%, which is included in the category of high interest in learning. In essence, this media is valid and suitable for use in the learning process.
SOLUSI NUMERIK MODEL PENYAKIT ANEMIA MENGGUNAKAN METODE RUNGE KUTTA ORDE EMPAT DI KABUPATEN GOWA: Numerical Solution Of Anemia Disease Using The Runge-Kutta Fourth-Order Method Syam, Nur; Syata, Ilham; Nurman, Try Azisah
Al-Aqlu: Jurnal Matematika, Teknik dan Sains Vol. 2 No. 2 (2024): Juli 2024
Publisher : Yayasan Al-Amin Qalbu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59896/aqlu.v2i2.103

Abstract

This study aims to solve the mathematical model of anaemia disease numerically using the Runge-Kutta fourth-order method. The mathematical model used is a SAR model in the form of a system of differential equations that includes the number of susceptible populations (S), anaemic populations (A), and recovered human populations (R) as initial values. This model is analysed and simulated with the values of µ, α, β, ε, π as parameters and carried out as many as several iterations with an interval time or h= 0.5 months. The initial values given are S0 = 12881,  A0 = 129, R0 = 129. The simulation results in the first iteration are the rate of susceptible population (S) = 12754 , anaemic population (A) = 128 and recovered population (R) = 192 . In the second iteration the rate of susceptible population (S) = 12630, anaemic population (A) = 126 and recovered population (R) = 254 . From the results obtained it can be concluded that the rate of susceptible population and anaemic population has decreased, while for the recovered population has increased.
PEMBAGIAN TUGAS APEL PAGI MINGGUAN PEGAWAI INSTANSI XYZ DENGAN MENGGUNAKAN PEWARNAAN GRAF BESERTA ANALISIS BEBAN PENUGASAN: Distribution Of Weekly Morning Call Assignments Of XYZ Agency Employees Using Graph Coloring And Assignment Load Analysis Diana, Ulfa; Fauzi, Rifky
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.v3i1.60

Abstract

This study addresses the issue of the weekly morning roll call duty assignment at XYZ Agency. The allocation of morning roll call duties at XYZ Agency has been incidental, leading to uneven task assignments for employees. The author proposes a solution to this problem by implementing the Welch-Powell Algorithm on Graph Coloring to determine the allocation of morning roll call duties for XYZ Agency employees. This is achieved by representing each employee as a point, and the edges represent job similarities. The graph coloring results in this study produce 4 colors: red, green, blue, and purple, with connected points having different colors. The findings reveal that 20 employees participate in the roll call duty each month. The duty assignments are then made for six months and compiled into a task assignment table. Based on descriptive statistical results, each employee receives an average assignment of 4.68 times with a standard deviation of 1.38. Furthermore, the Levene's Test is employed to ensure the equality of workload among different employee job groups. The results indicate differences in the assignment workload among job groups
SOLUSI NUMERIK SISTEM PERSAMAAN NON LINEAR DALAM REAKSI STEAM REFORMING MENGGUNAKAN METODE NEWTON-RHAPSON: Numerical Solution of Non-Linear Equation System in Steam Reforming Reaction Using Newthon-Raphson Method Kirani, Azizah Fitrah; Ibnas, Risnawati; Syata, Ilham
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.v3i1.105

Abstract

This study discusses the solution of a system of non linear equation from the steam reforming reaction  which consist of two non-linear equation with two variables, namely the  and  variables which will be solved using the Newton-Raphson method. The results of the final iteration  are obtained with a value of x is 0,754090792 and y is 0,700893797. These two values will be substituted into the mole fraction formula to find the equilibrium composition of the steam reforming reaction components. The research results were obtained by formulating the mole fraction of each component of a chemical compound that had been formulated, then the value of the mole fraction for each component of the chemical compound was obtained, the value of the mole fraction for CO = 0,00462, H2 = 0,25745, CO2 = 0,06089, H2O = 0,56875 and CH4 = 0,10827. Based on the results obtained, it can be concluded that the Newton-Raphson method can be applied to find the equilibrium composition of the components of the steam reforming reaction.      
FORMULASI DAN EVALUASI FISIK SABUN CAIR EKSTRAK DAUN SAGA (ABRUS PRECATORIUS L.) DENGAN VARIASI KOH: Formulation And Physical Evaluation Of Saga Leaf Extract Liquid Soap (Abrus Precatorius L.) With Variations KOH Eka S, Nur Afifah; Elvaretta R.I, Louisa; Friska, Septiana; Fatmi, Ota Fiya; Sihhono, Sihhono; Aulia, Cantika
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.v3i1.106

Abstract

Soap is often combined with sodium and potassium salt formulations of fatty acids derived from vegetable oils or animal fats. This study discusses the needs of the skin such as the manufacture of liquid soap with natural ingredients saga leaves. The research method used is by maceration method with 70% ethanol solvent soaked for 3 days at room temperature stirred every 8 hours. The purpose of the research that has been done is the formulation and evaluation of liquid soap preparation from saga leaf extract (Abrus Precatorius L.). Quality testing includes organoleptic test, pH test, viscosity test and foam height Test. Organoleptic test results showed that liquid soap is yellow, rancid odor, fine texture, pH test obtained all the results exceed the requirements of SNI 8-11, viscosity test all the results obtained are too low than the requirements of SNI is 400-4000cps and high foam test results obtained also do not meet the requirements of SNI is about 13-220 mm

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