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All Journal E-Jurnal Matematika BIMASTER Epsilon: Jurnal Matematika Murni dan Terapan Abdimas JURNAL DERIVAT: JURNAL MATEMATIKA DAN PENDIDIKAN MATEMATIKA Edumatsains AKSIOMA BAREKENG: Jurnal Ilmu Matematika dan Terapan GERVASI: Jurnal Pengabdian kepada Masyarakat Jurnal Matematika UNAND Technologia: Jurnal Ilmiah Abdimas Galuh: Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian kepada Masyarakat Nusantara Euler : Jurnal Ilmiah Matematika, Sains dan Teknologi Jurnal Abdimas Bina Bangsa Komatika: Jurnal Pengabdian Kepada Masyarakat Paulus Civil Engineering Journal Jurnal Matematika Integratif Prosiding Seminar Nasional Inovasi Teknologi Terapan Jurnal Inovasi Teknologi Terapan Patisambhida : Jurnal Pemikiran Buddha dan Filsafat Agama Emitor: Jurnal Teknik Elektro
Yudhi
Universitas Tanjungpura
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Nursing Physics Social Sciences Transportation Other

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Penerapan Algoritma Cross Entropy–Genetic Algorithm Untuk Optimasi Makespan Pada Penjadwalan Flow Shop Paranditus, Paranditus; Noviani, Evi; Yudhi, Yudhi
Jurnal Matematika UNAND Vol. 13 No. 1 (2024)
Publisher : Departemen Matematika dan Sains Data FMIPA Universitas Andalas Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jmua.13.1.1-13.2024

Abstract

Penjadwalan flow shop merupakan jenis penjadwalan produksi dimana setiap pekerjaan yang diproses seluruhnya mengalir pada proses yang sama, dengan tujuan untuk mencari urutan pekerjaan yang dapat mengoptimalkan nilai makespan. Penelitian ini bertujuan untuk mencari kombinasi urutan pekerjaan dengan nilai makespan yang optimal pada CV Bestone Indonesia. Permasalahan penjadwalan flow shop dapat diselesaikan dengan menggunakan Cross Entropy–Genetic Algorithm (CEGA). Algoritma CEGA bekerja dengan cara membangkitkan sampel awal (N) secara acak, kemudian sampel selanjutnya diperoleh dari hasil proses crossover dan mutasi dengan parameter berupa parameter kejarangan (ρ), koefisien penghalusan (α), parameter crossover (Pc) dan parameter pemberhentian (β). Berdasarkan pengolahan data yang telah dilakukan menggunakan Algoritma CEGA, diperoleh urutan pekerjaan 3, pekerjaan 1, pekerjaan 4, pekerjaan 2 dan urutan pekerjaan 3, pekerjaan 4, pekerjaan 1, pekerjaan 2 serta nilai makespan sebesar 389116,52 detik.
Sistem Monitoring Peninjauan Kapasitas Sampah Via Telegram Berbasis Internet Of Things Dengan Application Development Okta Rina, Tiara; Fauzan, M Nur; Ocsirendi, Ocsirendi; Yudhi, Yudhi
Jurnal Inovasi Teknologi Terapan Vol. 3 No. 1 (2025): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v3i1.277

Abstract

Internet of things (IoT) is a concept where various physical devices are interconnected and communicate through the internet. These devices can also be managed through applications on smartphones, not only that IoT can also collect data from the surrounding environment through sensors from this data can be analyzed to provide insight or automate actions. The sensors in this final project include loadcell sensors, MQ-135 sensors, and ultrasonic sensors. The method used is the application development method which refers to a systematic approach used in designing, developing, testing, and implementing application software. The results show that using the application development method can be easily understood by users, one of the application software that can be applied is the telegram application. The system must be designed to collect, process, and send data efficiently, including proper sensor calibration and system tests to ensure accuracy. In addition, it is necessary to implement a reliable communication system to report information in real-time and provide a monitoring system that can provide appropriate notifications and analysis.
ANALISIS AKURASI JARAK BACA OCR DAN QR CODE PADA PROTOTYPE SMART PARKING Ammar, Farid; Khariyyah, Lina; Afriansyah, Riki; Yudhi, Yudhi
Technologia : Jurnal Ilmiah Vol 16, No 1 (2025): Technologia (Januari)
Publisher : Universitas Islam Kalimantan Muhammad Arsyad Al Banjari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/tji.v16i1.17394

Abstract

Penelitian ini mengembangkan layanan website smart parking terintegrasi dengan prototype yang menggantikan teknologi RFID pada penelitian sebelumnya dengan menerapkan komponen teknologi QR Code untuk hak akses parkir dan pembayaran otomatis bagi pengendara. Kamera pada prototype smart parking dapat mengolah gambar plat kendaraan menjadi teks menggunakan Optical Character Recognition (OCR) untuk verifikasi akses slot parkir pada website smart parking. Uji jarak baca pada plat kendaraan menunjukkan akurasi 97,5% untuk plate recognition pada jarak 100 cm dan jarak 150 cm menunjukkan hasil akurasi 81,25%. Kemudian jarak ideal untuk memindai QR Code adalah 10 sampai 30 cm.
PELABELAN RATA-RATA GEOMETRIS PADA GRAF ULAR mC_n Sakti Simanjuntak, Junjungan Dwipa; Fran, Fransiskus; Yudhi, Yudhi
BIMASTER : Buletin Ilmiah Matematika, Statistika dan Terapannya Vol 14, No 2 (2025): Bimaster : Buletin Ilmiah Matematika, Statistika dan Terapannya
Publisher : FMIPA Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/bbimst.v14i2.92198

Abstract

Sebuah pemetaan yang memetakan unsur-unsur dari graf yaitu sisi maupun titik dengan bilangan asli yang dikenal sebagai label disebut pelabelan graf. Satu variasi pada pelabelan graf adalah pelabelan rata-rata geometris, merupakan bentuk khusus dari pelabelan rata-rata aritmetika. Pada pelabelan rata-rata geometris pada graf  terdapat    titik dan  sisi merupakan  injektif dari domain  dan kodomain  yang menginduksi fungsi  bijektif dengan domain  dan kodomain    sehingga untuk sisi  berlaku. Graf rata-rata geometris adalah graf yang memenuhi pelabelan rata-rata geometris. Dalam artikel ini, dibahas suatu pelabelan rata-rata geometris untuk graf ular  dengan    untuk. Proses kontruksi pelabelan ini dilakukan dengan melabeli titik-titik pada graf tersebut sehingga menghasilkan label sisi-sisi yang sesuai dengan definisi pelabelan rata-rata geometris dan menghasilkan suatu pola label untuk masing-masing titiknya. Berdasarkan hasil kontruksi pelabelan rata-rata geometris untuk graf ular  dengan   untuk    diperoleh bahwa, graf ular  dengan  untuk  adalah graf rata-rata geometris.  Kata Kunci : label, fungsi injektif, fungsi bijektif.
Barcode Scanning Conveyor Automation System for Expedition Goods Eko Sulistyo; Ilham, Muhamad Ilham; Dhea Prameswari; Yudhi
Emitor: Jurnal Teknik Elektro Vol 25, No 1: March 2025
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/emitor.v25i1.6164

Abstract

The development of expeditionary goods separation system technology is currently increasingly leading to automation systems. Including shipping expedition goods. However, currently the process of separating goods during shipping expeditions is still mostly done manually. Therefore, research is needed to create an automatic control system tool that can separate and record expedition goods so that it becomes more effective and efficient. The methodology used is 3 GM66 Barcode Readers to read Barcodes on expedition goods from the top, left and right positions. The reading results are sent to the Arduino Mega R3 and processed to move the servo motor and separate the expedition goods into 3 different sortings according to the destination area and 1 sorting for rejected goods. Reading data from the Barcode is also sent to the WiFi module and processed to be sent to the expedition's goods database. The expedition goods database then displays the data on the IoT control system. As a result, the Barcode reading by the Barcode Reader from the top, left and right positions was read well with an error percentage of 0%. Then separate the expedition goods from the reading results separately according to the destination with an error percentage of 0%. And reading the expedition goods input data through reading the Barcode is stored in the expedition goods database and can be read again based on the Barcode, recipient's name, recipient's address, and No. Recipient's cellphone.
Rekonstruksi integrasi numerik metode PIAS segitiga Limanto, Vincent; Yudhi, Yudhi; Prihandono, Bayu
AKSIOMA : Jurnal Matematika dan Pendidikan Matematika Vol 16, No 1 (2025): AKSIOMA: Jurnal Matematika dan Pendidikan Matematika
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/aks.v16i1.19970

Abstract

The solution to numerical integration problems generally can be achieved using mesh methods. However, mesh methods, commonly known as trapezoidal, rectangular, and midpoint, only apply to Cartesian coordinates. Therefore, this research develops a mesh method that can be used for numerical integration in polar coordinates, specifically using Triangle shapes. This study also analyzes the errors from the results of the Triangle mesh method and provides examples and visualizations of applying the Triangle mesh method to solve numerical integration problems. The steps of this research are as follows: first, determining the form of the integral in the problem of numerical integration in polar coordinates. Then, the area bounded by the curve is divided into several parts, each approximated by a triangle. Next, a numerical integration formula of the triangle mesh method is created by summing the areas of each triangle. After that, the resulting error of the triangle mesh method is analyzed using the Taylor series. Finally, proving that the results of the triangle mesh method approximate the area bounded by the curve in polar coordinates. From this research, the numerical integration formula for the Triangle mesh method is obtained, the error formula with a second-order approximation degree, and based on the proof of the numerical integration formula for the Triangle mesh method, it is concluded that as the number of triangles approaches infinity, the results of the Triangle mesh method will converge to the exact area bounded by the curve.
Pengaruh Kendaraan Berat Terhadap Kinera Ruas Jalan Daengta Qalia Salodong, Kota Makassar Yudhi
Paulus Civil Engineering Journal Vol. 7 No. 2 (2025): Paulus Civil Engineering Journal V7N2 2025
Publisher : Universitas Kristen Indonesia Paulus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52722/2amf3135

Abstract

Roads are the primary infrastructure playing a crucial role in the smooth flow of land transportation. The design life of a road is the period in years, calculated from the time the road is opened to traffic until major repairs are required or a new surface layer is deemed necessary. The Daengta Qalia Axis serves as an access road connecting several warehouses and factories that will transport logistics using heavy vehicles via Jalan Ir. Sutami, which will be distributed to and from the city of Makassar. The purpose of this research is to determine the influence of the proportion of heavy vehicles on the performance of the Daengta Qalia Salodong road section. The Indonesian Highway Capacity Manual (PKJI) 2023 is used as a guideline. Traffic flow and speed counts were conducted for 1 week. The largest proportion of heavy vehicles, 30.49%, resulted in a degree of saturation of 0.259, however, the average space mean speed was 4.102 km/hour. The high number of heavy vehicles on the 2/2UD section causes smaller vehicles to adjust their speed to that of the heavy vehicles.
METODE ALTERNATIF DALAM MENENTUKAN SOLUSI PARTIKULAR PERSAMAAN EULER-CAUCHY Kiftiah, Mariatul; Yudhi, Yudhi; Yanitami, Alvi
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 15 No 1 (2021): BAREKENG: Jurnal Ilmu Matematika dan Terapan
Publisher : PATTIMURA UNIVERSITY

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (361.684 KB) | DOI: 10.30598/barekengvol15iss1pp085-094

Abstract

Euler-Cauchy equation is the typical example of a linear ordinary differential equation with variable coefficients. In this paper, we apply the alternative method to determine the particular solution of Euler-Cauchy nonhomogenous with polynomial and natural logarithm form. An explicit formula of the particular solution is derived from the use of an upper triangular Toeplitz matrix. The study showed that this method could be finding the particular solution for the Euler-Cauchy equation
SOLUSI PERSAMAAN EMDEN-FOWLER ORDE DUA DENGAN MEMANFAATKAN MATRIKS OPERASIONAL DARI POLINOMIAL BERNSTEIN Yudhi, Yudhi; Noviani, Evi; Aljona, Sarah
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 15 No 2 (2021): BAREKENG: Jurnal Ilmu Matematika dan Terapan
Publisher : PATTIMURA UNIVERSITY

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (526.111 KB) | DOI: 10.30598/barekengvol15iss2pp335-346

Abstract

Dalam penelitian ini, matriks operasional dari Polinomial Bernstein digunakan untuk mengaproksimasi solusi Persamaan Emden-Fowler orde dua. Untuk mencari solusi Persamaan Emden-Fowler digunakan matriks operasional integral dan matriks operasional diferensial dari Polinomial Bernstein. Karena Persamaan Emden-Fowler berorde dua, maka digunakan dalam matriks operasional dari Polinomial Bernstein. Berdasarkan hasil penelitian bahwa solusi Persamaan Emden Fowler dengan diperoleh galat yang lebih kecil daripada dengan , baik menggunakan matriks operasional integral maupun matriks operasional diferensial dari Polinomial Bernstein
FLUID FLOW MODELLING WITH FREE SURFACE Pratama, Anjeryan Sapta; Noviani, Evi; Yudhi, Yudhi
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 16 No 4 (2022): BAREKENG: Journal of Mathematics and Its Applications
Publisher : PATTIMURA UNIVERSITY

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (438.971 KB) | DOI: 10.30598/barekengvol16iss4pp1147-1158

Abstract

Fluid is a substance that can flow in the form of a liquid or a gas. Based on the movement of the fluid is divided into static and dynamic fluids. This study discusses fluid dynamics, namely modelling fluid flow accompanied by a free surface and an obstacle in the fluid flow. Fluid modelling generally makes some basic assumptions into mathematical equations. The assumptions are incompressible, steady-state and irrotational. The steps to obtain a fluid flow model are using Newton’s second law, the law of conservation of mass, and the law of conservation of momentum to obtain the general Navier-Stokes equation, the designing the Euler free surface equation, the Bernoulli equation, then making a free surface representation and linearizing the wave equation so that it is obtained fluid flow model. The resulting mathematical model is a Laplace equation with boundary conditions in the fluid.
Co-Authors Aan Febriansyah Al Azizi, Fudhail Azzam Thoriqi Aljona, Sarah Amalia Wigati Aminuyati Ammar, Farid Ananda Sapitri, Anjelalica Andi Hairil Alimuddin Andri Royani Anggelina, Florensi Silva Anggraeni, Rosiana Angraini, Wanda Apriliandi Apriliandi Arin Yerliansyah Arya Pratama, Putra Handika Bayu Prihandono BENI, YAKOBUS Danang Try Purnomo Debataraja, Naomi Nessyana Dedek Noviyani Desi Ayu Wulandari Dessy Natalia Dhea Prameswari Egi Riansyah Eko Sulistyo Evi Novian Evi Noviani FAJRIN NURSETYA DESI Fansiskus Fran Fauzan, M Nur Febriyanto, Ferdy Feby Fitria Ramadhita Feriliani Maria Nani Firman Saputra Fitriani Fitriani Fran, Fransiskus Frananta Maha Fransiskus Fran Fransiskus Fran Hasanuddin Hasanuddin Helmi Helmi Helmi Helmi Helmi Hendra Perdana Huda, Nur’ainul Miftahul Humaira Ichlashi Amaliah Ilham, Muhamad Ilham Irfant Bayu Pratama Irvandi, Firzakalpa Syafiq Iskandar, Rais Khairun Nisa Khariyyah, Lina Laksono Trisnantoro Lili Oktaviana Limanto, Vincent Lita Novianti Lovi Dwi Purnamasari Luluk Hendriyana Mahmul Mahmul Maisurah Maisurah Mareta, Nadia Mariatul Kiftiah Martha, Shantika Maulydiana Septiani Mawarni, Selkia Meiliana Meiliana Meliana Pasaribu Mochammad Imron Awalludin Mudinillah, Adam Muhammad Adiyan Septianda Muhardi Naomi Nessyana Debataraja Neva Satyahadewi Nilamsari Kusumastuti Nopiani Nopiani Novitasari Novitasari Nurfitriana Nurfitriana Nurtaniyahya, Ilham Nurul Fadhilah NUR’AINUL MIFTAHUL HUDA Ocsirendi Okta Rina, Tiara Paranditus Paranditus Paranditus, Paranditus Pratama, Anjeryan Sapta Puteri Islamega Taufani Rabitah Al-Alawiyah ratih ratih Renisa Auditaputri Rian Prasetio Riki Afriansyah Risko, Risko Sahrial Sakti Simanjuntak, Junjungan Dwipa Sandi, Sabinus Saputra, Irpan Selah Siti Nur Amanah Suhardi Tantri, Eliana Tesah Aldi Parani Tri Desrehan, Sagit Tripina, Maria Try Purnomo , Danang Uray Agustian Wahyu Fahrizal Windarti, Ayu Yanitami, Alvi Yuli Rahayu Yuliardi Kurniawan Yundari, Yundari Yundari, Yundari Yuni Wulandari Yusnanda Yusnanda Zanu Saputra Zettira Septiani