Optimization of Coca-Cola Product Distribution Routes at PT. Graha Prima Mentari Medan With Ant Colony Optimization

PT Graha Prima Mentari is a company engaged in the service sector, namely as the official distributor of Coca-Cola. PT. Graha Prima Mentari has Distribution Centers spread across various cities including those located in the cities of Cirebon, Indramayu, Tasikmalaya, Pekanbaru, Medan, Denpasar, Rembang and others. For branches in the city of Medan PT. Graha Prima Mentari is located at Jalan Gatot Subroto KM 6.7 No. 100 Fields. PT. Graha Prima Mentari has 13 transportation cars that operate from Monday to Saturday and serve 6 areas, namely Medan Barat, Medan Sunggal, Medan Helvetia, Medan Selayang, Medan Tuntungan and Medan Petisah.The problem that occurs is that the company has not determined the optimal route which results in additional costs for the distribution of goods. This study aims to minimize the distance by using the ant colony optimization method. The result obtained is that the distribution distance is reduced by 52 km from the previous distance of 93.1 km to 41.1 km and saves distribution costs of Rp.49,000

Optimalisasi Pengelolaan Lahan Parkir Menggunakan Program Integer Metode Branch And Bound Di Mall Plaza Medan Fair

The rapid development of vehicles has an impact on increasing the need for parking space, thus demanding the need for availability and land management that provides convenience and comfort for motorists. Plaza Medan Fair mall is still not optimal in planning and managing parking lots, this can be seen from the number of vehicles that do not get parking spaces while parking is still available, besides that the placement of parking cars has not been arranged so that visitors still have difficulty in finding a parking space. This can have an impact on not optimal parking lot income. Parking lot management can be done by classifying parking by categorizing vehicles according to their group considering that each vehicle has a different size and can be grouped according to type. Optimization of parking management can be done using the branch and bound method integer program. The branch and bound method is a method to find the optimal solution to the integer problem with the concept of branching and bounding. The results of the study found that there were 200 parking spaces for small cars, 651 parking spaces, 651 parking spaces, 226 large cars and 70 parking spaces. The maximum parking income obtained by Plaza Medan Fair mall is Rp10,023,000.-

Pengoptimalan Jaringan Pipa Primer PDAM Tirtanadi Cabang Tuasan Dengan Menggunakan Algoritma Kruskal

Kruskal's algorithm in searching for minimum spanning trees can be applied to pipelines installed at the location of PDAM Tirtanadi Tuasan where problem identification starts with the water discharge reaching the consumer is small but the discharge flowing from the reservoir is sufficient, so this research is used as a solution to this problem and also as an optimization of the clean water distribution network in the Tirtanadi Regional Drinking Water Company (PDAM) of the Tuasan Branch with the intention of cutting the direction of the pipe flow to overcome this problem. The data obtained from PDAM Tirtanadi Tuasan Branch is in the form of a floor plan and formed into a weighted graph. After the data is obtained, then it is calculated manually that the length of the installed water pipe is 32,645 m with 86 vertices and 100 edges, then the pipe length is represented as a set of paths and the pipe connection ends are represented as nodes. The pipe length obtained using Kruskal's algorithm and inspection of iterations using the QM for windows software is 22,095 m, with 86 vertices and 85 edges. So, using the Kruskal Algorithm and the help of the QM for windows software, the difference in pipe length obtained is 10,610 m

Pengembangan Lembar Kerja Peserta Didik Berbasis Model Problem Based Learning untuk Meningkatkan Kemampuan Pemecahan Masalah dan Disposisi Matematis Siswa

Menganalisis validitas lembar kerja peserta didik berbasis model Problem Based Learning untuk meningkatkan kemampuan pemecahan masalah dan disposisi matematis siswa, menganalisis kepraktisan lembar kerja peserta didik berbasis model Problem Based Learning untuk meningkatkan kemampuan pemecahan masalah dan disposisi matematis siswa, menganalisis efektifitas lembar kerja peserta didik berbasis model Problem Based Learning untuk meningkatkan kemampuan pemecahan masalah dan disposisi matematis siswa. Penelitian ini menggunakan model pengembangan ADDIE. Subjek dalam penelitian ini adalah peserta didik kelas VIII MTs Persiapan Negeri 4 Medan tahun ajaran 2022/2023. Hasil penelitian menunjukkan bahwa lembar kerja peserta didik yang dikembangkan sudah memenuhi kriteria valid berdasarkan nilai rata-ratanya 4,06, lembar kerja peserta didik yang dikembangkan sudah memenuhi kriteria praktis berdasarkan hasil keterlaksanaan pembelajaran yaitu IO = 4,01 (Tinggi). Lembar kerja peserta didik yang dikembangkan sudah memenuhi kriteria efektif ditinjau dari: ketuntasan klasikal mencapai 84,00%, respon peserta didik terhadap pembelajaran diperoleh di atas 80% untuk keseluruhan peserta didik yaitu 93%, peningkatan kemampuan pemecahan masalah dilihat dari nilai rata-rata N-Gain dari uji coba I sebesar 0,39 meningkat menjadi 0,50 pada uji coba II, artinya berada dalam kategori “sedang”, dan d) peningkatan disposisi matematis dilihat dari nilai rata-rata N-Gain dari uji coba I sebesar 0,52 meningkat menjadi 0,62 pada uji coba II, artinya berada dalam kategori “sedang”

ANALISIS SISTEM ANTRIAN PADA PT. BANK SUSMUT KANTOR PUSAT MEDAN MENGGUNAKAN MODEL ANTRIAN MULTI CHANNEL SINGLE PHASE

Antrian adalah fenomena atau kejadian yang sering dijumpai dalam kehidupan sehari-hari. Antrian yang sangat panjang dapat merugikan pihak yang membutuhkan pelayanan jika tidak dilayani dengan cepat, karena banyaknya waktu yang digunakan  terbuang selama menunggu giliran pelayanan. PT. Bank Sumut Kantor Pusat Medan merupakan salah satu bank daerah yang sumber dananya berasal dari simpanan masyarakat. Adapun tujuan dari penelitian ini adalah untuk mengetahui model sistem antrian serta menemukan alternatif untuk mengoptimalkan sistem pelayanan pada PT. Bank Sumut Kantor Pusat Medan. Sistem antrian teller yang diterapkan oleh bank ini adalah sistem antrian yang terdapat lebih dari satu jenis layanan yang diberikan, tetapi dalam setiap jenis layanan hanya terdapat satu pemberi layanan dengan memberi nomor antrian atau yang sering disebut Multi Channel Single Phase. Disiplin antrian yang digunakan pada bank ini yaitu  first come first served (FCFS). Berdasarkan hasil pembahasan, model antrian yang diperoleh adalah  yang berarti bahwa tingkat kedatangan nasabah berdistribusi Poisson, waktu pelayanan nasabah berdistribusi Eksponensial, jumlah server sebanyak empat, disiplin antrian adalah First Come First Serve (FCFS), jumlah nasabah yang masuk dalam sistem tidak terhingga dan ukuran populasi masuk tidak terhingga. Dengan dilakukannya evaluasi terhadap kinerja teller dapat membantu mengoptimalkan antrian yang terjadi pada PT. Bank Sumut Kantor Pusat Medan. Selain itu, Bank juga dapat menerapkan standar waktu pelayanan dan standar waktu tunggu nasabah

Analysis of Mathematic Reasoning Ability and Self-Confidence Students Using Models PBL Reviewed from Intelligence Intrapersonal in SMP N 5 Youth Vocationality

The instruments used are reasoning ability tests, self-confidence questionnaires, intrapersonal intelligence questionnaires and interview guidelines. Data analysis used the Mile and Huberman model. Subjects in this study involved students of SMP N 5 Vocational Youth who were given problem-based learning treatment with a total of 30 people. Intrapersonal intelligence of students with problem-based learning models, high-ability students as many as 8 students or (26.67%), students with moderate abilities as many as 18 students or (60%) and students with low ability as many as 4 people or (13.34%). The conclusion of mathematical reasoning ability using problem-based learning model, high-ability students as many as 7 students or (23.33), moderately capable students as many as 13 students or (43.33%) and low-ability students as many as 10 students or (33.33%) ). Keywords:Mathematical reasoning ability, Self-Confidence, PBL Model DOI: 10.7176/JEP/12-16-08 Publication date:June 30th 202

Percentile Bootstrap Interval on Univariate Local Polynomial Regression Prediction

This study offers a new technique for constructing percentile bootstrap intervals to predict the regression of univariate local polynomials. Bootstrap regression uses resampling derived from paired and residual bootstrap methods. The main objective of this study is to perform a comparative analysis between the two resampling methods by considering the nominal coverage probability. Resampling uses a nonparametric bootstrap technique with the return method, where each sample point has an equal chance of being selected. The principle of nonparametric bootstrapping uses the original sample data as a source of diversity in contrast to parametric bootstrapping, where the variety comes from generating a particular distribution. The simulation results show that the paired and residual bootstrap interval coverage probabilities are close to nominal coverage. The results showed no significant difference between paired bootstrap interval and percentile residual. Increasing the bootstrap sample size sufficiently large gives the scatterplot smoothness of the confidence interval. Applying the smoothing parameter by choice gives a second-order polynomial regression with a smoother distribution than the first-order polynomial regression. The scatterplot shows that the second-degree polynomial regression can capture the data curvature feature compared to the first-degree polynomial. The bands made from second-degree polynomials give a narrower width than first-degree polynomials. In contrast, applying optimal smoothing parameters to the model provides different conclusions by using smoothing parameters based on choice. In addition to the differences based on the scatterplot, the bootstrap estimates of the coverage probability are also other. Selecting smoothing parameters based on a particular value provides probability coverage with the paired bootstrap method for the first-degree local polynomial regression is 0.93, while the second-degree local polynomial is 0.96. The probability of coverage based on the residual bootstrap method for the first-degree local polynomial regression is 0.95, while the second-degree local polynomial is 0.96. The probability coverage based on the optimal parameters of the paired bootstrap method for the first-degree local polynomial regression is 0.945, while the second-degree local polynomial is 0.93. The residual bootstrap method gives the first-degree local polynomial regression of 0.95, while the second-degree local polynomial is 0.93. In general, both bootstrap methods work well for estimating prediction confidence intervals

Reconstruction of Professional Teacher Education Program

The Professional Teacher Education Program (in Indonesia known as Pendidikan Profesi Guru – PPG) was developed by the teacher training university by referring to Teacher Education Standards which include educational standards, research standards, and community service standards. Article 17 (1) of The Act Number 12 of year 2012 concerning Higher Education states that professional education is a higher education after an undergraduate program that prepares students for works, which need special expertise requirements. Based on this article of The Act, the competencies of PPG graduates that should include four professional teacher competencies, which are professional, pedagogical, personal and social competencies, should be more than undergraduate’s competencies. However, do the material and evaluation systems currently show such a relationship? Besides that, the social, personal, professional and pedagogical abilities of the teacher are not abilities that are mastered separately but rather the overall integration of these abilities which shows the professionalism of the teacher. This article discusses the weaknesses of the current PPG program implementation and the efforts to reconstruct it to obtain a PPG program implementation system that takes into account the comprehensive and integrated competencies as learning outcomes of the program’s graduates.Keywords: professional teacher, Professional Teacher Education Program, professional educationDOI: 10.7176/JEP/11-16-12Publication date: June 30th 202

Perbedaan Kemampuan Pemecahan Masalah dan Komunikasi Matematis Siswa Model Pembelajaran TPS dan STAD

Tujuan penelitian ini adalah untuk mengetahui (1) perbedaan kemampuan pemecahan masalah matematika siswa yang diajar melalui model pembelajaran kooperatif tipe Think-Pair-Share dengan siswa yang diajar melalui model pembelajaran kooperatif tipe Students Teams Achievement Division, (2) perbedaan kemampuan komunikasi matematis siswa yang diajar melalui model pembelajaran kooperatif tipe Think-Pair-Share dengan siswa yang diajar melalui model pembelajaran kooperatif tipe Students Teams Achievement Division, (3) interaksi antara model pembelajaran dan kemampuan awal matematika siswa terhadap kemampuan pemecahan masalah dan komunikasi matematis siswa. Jenis penelitian ini adalah kuasi eksperimen. Populasi dalam penelitian ini adalah seluruh siswa kelas XI jurusan TBSM dan sampel dalam penelitian ini dipilih secara acak, kelas yang terpilih adalah kelas XI TBSM 1 dan XI TBSM 2 sebagai kelas eksperimen masing-masing berjumlah 26 siswa. Analisis data dilakukan dengan ANAVA dua jalur. Hasil penelitian ini menunjukkan bahwa (1) terdapat perbedaan kemampuan pemecahan masalah matematika siswa yang diajar melalui model pembelajaran kooperatif tipe Think-Pair-Share dengan siswa yang diajar melalui model pembelajaran tipe Students Teams Achievement Division, (2) terdapat perbedaan kemampuan komunikasi matematis siswa yang diajar melalui model pembelajaran kooperatif tipe Think-Pair-Share dengan siswa yang diajar melalui model pembelajaran kooperatif tipe Students Teams Achievement Division, (3) tidak terdapat interaksi antara pembelajaran dan kemampuan awal matematika siswa terhadap kemampuan pemecahan masalah dan komunikasi matematis siswa

Development of Learning Devices Based on Realistic Mathematics Approach to Improve Communication Skills and Mathematical Literacy of Torgamba Negeri 5 Middle School Students

This research aims to: Analyzing the validity, practicality, and effectiveness of learning tools oriented towards problem-based learning models assisted by macromedia flash that was developed to improve students' mathematical literacy skills. there is an increase in students' mathematical communication skills by using learning devices based on realistic mathematical approaches that were developed in trial I and trial II by 6.74; 3 and there is an increase in students' mathematical literacy skills by using learning devices based on realistic mathematical approaches that were developed in trial I and trial II by 5.68. Keywords: Development of Learning Tools, based on Realistic Mathematical Approaches, Communication Skills and Mathematical Literacy DOI: 10.7176/JEP/11-14-16 Publication date:May 31st 202