26 research outputs found
Optimization of distribution routes in resolving traveling salesman problems using the tabu search algorithm (case study: CV. Bintang anugerah sukses pekanbaru)
No full textCV. Bintang Anugerah Sukses is a company engaged in the distribution of product PT. Belfoods Indonesia. Distribution of frozen goods distributes to 12 customer agencies using one vehicle. The route distribution is determined based on the experience and subjective decisions of a salesman in charge of distributing goods. The problem will be solved using the Travelling Salesman Problem (TSP) approach, so the best route for distributing goods can be obtained that can minimum mileage and time. One of the methods applied to the traveling salesman problem is the Tabu Search algorithm. Tabu Search is one of the metaheuristic methods with the process of searching moving from one solution to the next. The algorithm uses a taboo list to store a set of solutions that have just been evaluated, the result will be adjusted first to the contents of the taboo list to see whether the solution already exists or not. If the solution already exists then the solution will not be evaluated. The calculation results obtained a minimum mileage of 53.6 km and a minimum of time 305 minutes or 5 hours 5 minutes
PENGARUH LUAS LAHAN DAN PRODUKTIVITAS TERHADAP HASIL PRODUKSI KELAPA SAWIT MENGGUNAKAN METODE COBB DOUGLASS (STUDI KASUS: PTPN V, PEKANBARU)
Get PDFPenggunaan minyak kelapa sawit terus meningkat seiring dengan pertumbuhan penduduk dunia. Perkembangan teknologi produksi dan peningkatan tingkat konsumsi penduduk, diperkirakan bahwa penggunaan minyak kelapa sawit akan terus meningkat. Penelitian ini bertujuan untuk mengetahui pengaruh luas lahan dan produktivitas terhadap hasil produksi kelapa sawit. Adapun metode yang digunakan adalah metode Cobb Douglass. Berdasarkan hasil pengolahan data diperoleh hasil uji asumsi klasik menunjukkan bahwa pengaruh luas lahan dan produktivitas terhadap hasil produksi kelapa sawit terbebas dari gejala multikolineritas, autokorelasi, heteroskedastisitas dan normalitas. Hasil koefisien determinasi dapat dijelaskan bahwa presentase sumbangan pengaruh yang diberikan variabel independen terhadap variabel dependen sebesar 99,6%. Pengolahan data menggunakan software SPSS versi 16.0 diperoleh kesimpulan bahwa luas lahan dan produktivitas memiliki pengaruh terhadap hasil produksi kelapa sawit AbstractThe use of palm oil continues to increase along with the growth of the world's population, the development of production technology and the increase in the level of population consumption, it is estimated that the use of palm oil will continue to increase. This study aims to determine the effect of land area and productivity on oil palm production. The method used is the Cobb Douglas method. Based on the results of data processing, the classical assumption test results show that the effect of land area and productivity on oil palm production is free from the symptoms of multicolinearity, autocorrelation, heteroscedasticity and normality. The results of the coefficient of determination can be explained that the percentage contribution of the influence given by the independent variable to the dependent variable is 99.6%. Data processing using SPSS version 16.0 software, it can be concluded that land area and productivity have an influence on oil palm production
Flow Reversal of Fully Developed Mixed Convection in a Vertical Channel with Chemical Reaction
No full textThe present analysis is concerned with the criteria for the onset of flow reversal
of the fully developed mixed convection in a vertical channel under the effect of the chemical reaction. The governing equations and the
critical values of the buoyancy force are solved and calculated numerically via MAPLE.
Parameter zones for the occurrence of reversed flow are presented. The exothermic
chemical reaction is found to enhance the flow reversal and made flow reversal possible
for symmetrical walls temperature
Faktor-Faktor yang Mempengaruhi Kejadian Stunting terhadap Balita menggunakan Analisis Regresi Logistik
Get PDFStunting is a condition of failure to thrive in toddlers due to chronic malnutrition, resulting in toddlers or children being too short for their age standards. The purpose of the study was to determine the factors that influence the incidence of stunting to toddlers at the Public Health Center Kasih Ibu airtiris, kampar. The method used in this study is the binary logistic regression method. Based on the results of the study indicate that the factors that influence the incidence of stunting in toddlers at Public Health Center Kasih Ibu airtiris, kampar namely the nutritional status of body weight based on age. The binary logistic equation with the resulting logit function is . The value of the determination of the classification of stunting events using binary logistic regression is 83,6%.
 
PENERAPAN PROGRAM LINIER MENGGUNAKAN METODE DUAL SIMPLEKS DAN METODE QUICK SIMPLEKS UNTUK MEMINIMUMKAN BIAYA (STUDI KASUS: KELOMPOK WANITA TANI (KWT) SENTOSA SANTUL)
Get PDFThe Sentosa Santul Women Farmers Group (KWT) is a group of women farmers in Dusun Santul, Kampar Utara District an is engaged in the field of food crops is chili. The Sentosa Santul Women Farmers group (KWT) uses 4 types of fertilizers for chili plant fertilization, namely hydro complex fertilizer, phonska, NPK Zamrud and goat manure.The KWT wants the minimum fertilizer cost but the nutrients in the plants are met. The method used in this research is the dual simplex method and the quick simplex method. The purpose of this study is to determine the minimum costs that must be incurred by the Womens Farmer Group (KWT) for fertilization using the dual simplex method and the quick simplex method to obtain an optimum and feasible solution. For the dual simplex method, the optimum and feasible solution were obtained using the Gauss Jordanelimination. While the quick simplex method, the solution is illustrated using a matrix to reduce the number of iterations needed to achieve the optimal solution. Based on the research result, it is found that the quick simplex method is more efficient than the dual simplex method. This can be seen from the number of iterations carried out. Dual simplex method iteration there are two iterations and quick simplex one iteration. The dual simplex method and the quick simplex method produce the same value
COMPUTATION OF NATURAL CONVECTION IN A POROUS PARALLELOGRAMMIC ENCLOSURE WITH A MAGNETIC FIELD
Get PDFDetailed numerical calculations are presented in this paper for natural convection in a porous parallelogrammic enclosure with a magnetic field. The inclined walls are maintained isothermally at different temperatures. The top and bottom horizontal straight walls are kept adiabatic. To simplify the effort in matching the grid mesh with the inclined walls of the parallelogrammic region/geometry, the computational domain is mapped onto a rectangular shape using a non-linear axis transformation. Transport equations are modeled by a stream-vorticity formulation then expressed in the new coordinate system and solved numerically by a finite difference method. Based upon the numerical predictions, we found the convection modes within the enclosure depended upon the Rayleigh number and the inclination angle. As the value of magnetic field is made larger, the strength of the heat transfer is progressively suppressed. Tuning the inclination angle decreases the heat transfer performance
Penerapan Metode Branch and Bound dalam Optimalisasi Produk Mebel (Studi kasus: Toko Mebel di Jalan Marsan, Panam)
Get PDFSetiap pelaku usaha atau pelaku ekonomi pasti melakukan prinsip ekonomi yaitu dengan usaha atau modal yang sedikit mampu menghasilkan keuntungan yang banyak, sehingga menyebabkan munculnya masalah optimasi. Metode yang digunakan dalam penelitian ini adalah metode Branch and Bound. Penelitian ini bertujuan untuk mengetahui optimalisasi produk mebel yang berada di jalan Marsan Panam menggunakan metode Branch and Bound. . Solusi awal didapat menggunakan metode simpleks. Apabila hasilnya bernilai non integer maka dilanjutkan dengan metode Branch and Bound untuk mendapatkan solusi yang integer. Berdasarkan hasil penelitian diperoleh bahwa untuk mengoptimalkan produk mebel dengan keuntungan maksimal, maka toko mebel di Jalan Marsan, Panam menerima pesanan produk mebel tempat tidur sebanyak 4 unit, lemari tiga pintu sebanyak 4 unit, lemari dua pintu sebanyak 2 unit dan meja makan sebanyak 3 unit dengan keuntungan produksi sebesar Rp. 14.250.000.
Kata kunci: Branch and bound, integer, metode simpleks, optimalisas
Optimasi Penjadwalan Perawat Menggunakan Integer Linear Programming (Studi Kasus: RS. Aulia Hospital Pekanbaru)
No full textPenjadwalan merupakan penyusunan jadwal yang optimal dalam pembagian shift kerja terutama di dunia medis. Penjadwalan perawat dengan adanya shift kerja dan total jam kerja memberikan dampak yang positif yaitu efisiensi waktu dan efektifitas pekerjaan sehingga sangat penting untuk mengoptimalkan sumber daya manusia untuk meningkatkan kuliatas rumah sakit salah satunya RS. Aulia Hospital. Model Integer Linear Programming digunakan untuk mendapatkan solusi optimal pada penjadwalan perawat di RS. Aulia Hospital Pekanbaru yang terdiri dari tiga ruangan yaitu ruangan perawatan, ruang IGD dan ruang ICU. Adapun Tujuan penelitian ini adalah mengetahui hasil optimasi menggunakan Integer Linear Programming serta mengetahui perbandingan hasil penjadwalan manual dan software Lingo. Berdasarkan hasil penelitian menggunakan model Integer Linear Programming menggunakan Software Lingo menunjukkan solusi yang optimal dengan semua kendala terpenuhi dan total hari kerja yang sama, yaitu sebanyak 22 hari kerja dengan interval jam kerja sebesar 175 <= x <= 185 . Penjadwalan perawat menggunakan Integer Linear Programming lebih optimal dibandingkan penjadwalan secara manual dikarenakan tidak terjadinya pengurangan anggota.
[Scheduling is an arrangement of an optimal schedule for work shifts division, especially in the medical world. The nurse scheduling through work shift and total work hours give positive impact such as time efficiency and work effectiveness until it is very important to optimize human resources to improve the hospital quality such as Aulia Hospital. Integer Linear Programming model was used to obtain optimal solution on nurse scheduling at Aulia Hospital Pekanbaru, which consists of three rooms, namely a treatment room, an emergency room, and an intensive care unit. The purpose of this research was to the optimization results using Integer Linear Programming and find out the result of manual scheduling and Lingo Software. This research discussed the nurse scheduling in three rooms at Aulia Hospital with the assistance of Lingo Software. Based on the research results by using Integer Linear Programming model with the assistance of Lingo software that it is an optimal solution and all obstacles are overcomed with totally same work hours in the amount of 22 work days with work hour interval in the amount of 175 <= x <= 185 . Nurse scheduling using Integer Linear Programming is more optimal than manual scheduling because there is no reduction in members.
Optimalisasi Laporan Keuangan PT. Pegadaian dengan Pendekatan Metode Lexicographic Goal Programming dan Simpleks yang Dimodifikasi
Get PDFPT. Pegadaian merupakan lembaga keuangan yang melayani masyarakat untuk mendapatkan dana pinjaman. Setiap lembaga keuangan harus membuat laporan keuangan sebagai suatu bentuk pertanggungjawaban atas hasil kinerja dalam periode tertentu. Laporan keuangan PT. Pegadaian tersebut akan dianalisa menggunakan model goal programming. Metode yang digunakan dalam penyelesaian model goal programming tersebut yaitu metode lexicographic goal programming dan simpleks yang dimodifikasi untuk mendapatkan solusi optimal. Optimalisasi dengan metode lexicographic goal programming dilakukan dengan mendahulukan prioritas pertama hingga berikutnya, sedangkan metode simpleks yang dimodifikasi menganggap setiap prioritas sama pentingnya. Berdasarkan hasil penelitian bahwa kedua metode mendapatkan solusi optimal dan iterasi yang sama, yaitu sebanyak enam iterasi. Tujuan model yaitu, aset, liabilitas, ekuitas, pendapatan dan beban dapat dicapai. Berdasarkan lima tujuan tersebut, tiga tujuan seperti total ekuitas, total pendapatan dan total beban dapat diubah untuk meningkatkan kinerja laporan keuangan. Total ekuitas dapat ditingkatkan sebesar Rp. 3.186.129,- per tahun, total pendapatan dapat ditingkatkan sebesar Rp. 957.800,- dan total beban dapat diturunkan sebesar Rp. 436.141,- per tahun.Kata kunci: Goal Programming, Laporan Keuangan, Lexicographic dan Simpleks Modifikasi
Model pengaturcaraan gol untuk penjadualan kunjungan kempen politik: kajian kes di Kabupaten Kampar, Riau, Indonesia
No full textThis paper discusses the development of a zero-one goal programming model to schedule a
politician’s visit to his constituencies during the political campaign in Kabupaten Kampar,
Riau, Indonesia. The visiting schedule has to be done in an efficient manner in order to have
maximum exposure hence increasing his chance to win in the election. The model developed
for this problem will be based on party policies. The politician must visit 20 constituencies in
Kabupaten Kampar within a 14 day-period with certain conditions and requirements set by the
party to be fulfilled. A feasible solution to the model is found using LINGO version 8.
