bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengaruh Aplikasi Makanan Bergizi Seimbang Pencegah Stunting Balita Menggunakan Metode Dempster Shafer Dan Naive Bayes
Authors: Syarlaila Nova , Dewi Maharani  , Yori Apridonal M
Published: July 2024

Stunting yaitu kekurangan gizi menahun atau kronis yang dapat terlihat pada tinggi badan balita lebih pendek dari balita seusianya. Pravelensi balita yang terjangkit stunting secara nasional sebesar 37,6 persen (2007) dan mengalami penurunan menjadi 35,8 persen (2010). Namun meningkat kembali menjadi 37,2 persen (2013) dan menurun kembali menjadi 29,9 persen (2018). Data tersebut menunjukkan pravelensi stunting yang tidak menentu. Banyak faktor yang mempengaruhi stunting khususnya pengetahuan orang tua mengenai mengenai gizi seimbang pencegah stunting. Pencegahan stunting perlu dilakukan dengan pemantauan status gizi secara berkala dan pemenuhan gizi seimbang Balita. Berdasarkan penelitian tersebut, maka dilakukan pemberian makanan bergizi seimbang pencegah Stunting dan sistem pakar deteksi dini stunting dengan sistem pakar. Hasil analisis menunjukkan bahwa metode Dempster Shafer dapat mendeteksi stunting balita lebih baik dengan akurasi  90% dibandingkan metode Naive Bayes dengan akurasi 75%. Aplikasi ini bertujuan membantu menurunkan angka stunting balita yang masih menjadi masalah saat ini.
Analisis Perancangan Sistem Informasi Pengaduan Keluhan Dan Kerusakan Barang Di Pengadilan Negeri Situbondo
Authors: Afifuddin  , Fajriyanto
Published: July 2024

Penelitian ini bertujuan mengembangkan sistem informasi pengaduan keluhan dan kerusakan di Pengadilan Negeri Situbondo untuk meningkatkan efisiensi operasional, akurasi, dan transparansi data. Metode yang digunakan mencakup observasi, wawancara, dan studi pustaka untuk mengumpulkan data, serta pendekatan pengembangan sistem waterfall. Masalah utama yang dihadapi adalah pelaporan kerusakan yang masih dilakukan secara manual, mengakibatkan penundaan dan gangguan operasional. Solusi yang ditawarkan adalah sistem informasi terintegrasi yang memungkinkan pelaporan kerusakan dilakukan secara digital, memudahkan akses dan penggunaan bagi semua pihak yang terlibat. Hasil implementasi dan pengujian menunjukkan bahwa sistem ini siap digunakan dan efektif dalam mengatasi masalah pelaporan manual, meningkatkan kinerja dan produktivitas pegawai. Dengan demikian, sistem ini diharapkan dapat memberikan manfaat jangka panjang bagi Pengadilan Negeri Situbondo.
Sistem Informasi Arsip Surat Masuk Dan Keluar Di Lembaga Madrasah Ibtida’iyah Berbasis Web
Authors: Ahmad Yusri
Published: July 2024

Sistem Informasi Arsip Surat Masuk dan Keluar adalah rekaman suatu informasi berupa surat masuk atau surat keluar yang sangan berguna bagi suatu instansi untuk. beberapa dari instansi ada juga yang belum menggunakan sistem informasi guna mengelola surat masuk dan surat keluar,di dalam pegarsipan surat masuk dan surat keluar masih menggunakan cara manual dan disimpan dalam map besar/stanbook, Namun saat ini dalam pelaksanaannya pengelolaan arsip surat banyak mengalami kendala. Seperti pada saat pengagendaan surat masuk yang diterima dan surat keluar yang akan dikirimkan, penomoran surat sulit dilakukan karena surat dicatat pada buku agenda konvensional faktor lain yang bisa menyebabkan kerusakan bahkan kehilangan surat yang berharga. Penelitian ini guna merancang sistem informasi pengarsipan surat secara terkomputriasi di lembaga Madrasah Ibtida’iyah Sukorejo. Penelitian ini memakai dua metode ialah metode pengumpulan data juga metode Waterfall. Berdasarkan hasil penelitian ini didapatkan sistem informasi arsip surat msuk dan surat keluar berbasis web, meliputi halaman login, halaman dashboard, halaman tampilan surat masuk, halaman tambah surat masuk, halaman surat keluar dan halaman cetak surat. Mengingat pentingnya peranan pengelolaan arsip surat, sudah seharusnya surat tersebut dikelola dengan baik sejak surat itu diterima atau dikeluarkan. Oleh karena itu diperlukan adanya sebuah sistem yang dapat digunakan untuk mengelola kegitan surat menyurat secara terpadu. Diharapkan sistem ini bisa membantu khususnya pada lembaga Madrasah Ibtida’iyah Sukorejo dalam melakukan tugasnya.
Rancang Bangun Sistem Monitoring Pengukur Cuaca Menggunakan Arduino Pada Stasiun Meteorologi Kelas III Banyuwangi
Authors: Muhammad Ali Ridla  , Ahmad Fawaid
Published: July 2024

Pemantauan cuaca yang akurat dan terkini sangat penting untuk berbagai aplikasi, termasuk navigasi penerbangan, pertanian, dan penelitian ilmiah. Penelitian ini bertujuan untuk merancang dan membangun sistem monitoring pengukur cuaca menggunakan platform Arduino untuk Stasiun Meteorologi Kelas III di Banyuwangi. Metode penelitian mencakup pemilihan sensor cuaca yang sesuai, pengembangan perangkat lunak untuk pengambilan data dan visualisasi, serta integrasi sistem secara keseluruhan. Hasil dari penelitian ini adalah sebuah sistem yang mampu secara real-time mengukur suhu udara, kelembaban, tekanan udara, dan kecepatan angin. Diskusi tentang hasil menyoroti kehandalan sistem dalam memantau kondisi cuaca lokal dan potensi pengembangan lebih lanjut, seperti integrasi dengan sistem pemantauan yang lebih luas. Kesimpulannya, sistem yang dikembangkan dapat menjadi alat yang berharga dalam pemantauan cuaca di Banyuwangi dan wilayah sekitarnya
Rancang Bangun Smart Office Pada Sistem Control Dan Monitoring AC Dan Lampu Berbasis Internet Of Things Di Kantor Bagian Tata Pemerintahan Dan Kerjasama Kab. Bondowoso
Authors: Abd. Jalil  , Firman Santoso
Published: July 2024

Penerapan teknologi Internet of Things (IoT) telah memberikan kontribusi signifikan dalam meningkatkan efisiensi dan kenyamanan dalam berbagai aspek kehidupan, termasuk lingkungan kantor. Penelitian ini bertujuan untuk merancang dan membangun sistem kontrol dan monitoring AC dan lampu berbasis IoT di kantor bagian tata pemerintahan dan kerjasama Kabupaten Bondowoso.
Metode pengembangan sistem yang digunakan adalah metode Prototype, dimulai dari identifikasi masalah, desain cepat, perencanaan, pembangunan prototype, evaluasi pengguna. Komponen utama sistem meliputi sensor DHT11, relay untuk kontrol AC dan lampu, mikrokontroler ESP32, dan platform IoT untuk menghubungkan semua komponen.
Sistem ini memungkinkan pengguna untuk mengontrol dan memonitor kondisi lingkungan kantor secara real-time melalui aplikasi blynk atau web. Dengan adanya sensor suhu, pengguna memonitoring suhu ruangan dan relay untuk menyalakan lampu.
Implementasi sistem ini diharapkan dapat meningkatkan efisiensi energi dengan mengoptimalkan penggunaan AC dan lampu, serta memberikan kenyamanan bagi pengguna kantor. Selain itu, data yang terkumpul dari sistem ini dapat digunakan untuk analisis lebih lanjut dalam upaya meningkatkan efisiensi dan produktivitas kantor.
Analisis Perbandingan Metode SMART dan MOORA dalam Pemilihan Calon Mustahiq di Masjid Nur-Hadi
Authors: Aprianto M. Sura , M. Handika  , Juliantika Rozi , Sitorus Pane Siti Fatimah , Natasya Tri Adetia , Afrisawati Afrisawati
Published: July 2024

Kemajuan teknologi informasi telah membawa perubahan signifikan dalam berbagai aspek kehidupan manusia, termasuk pengelolaan zakat. Penelitian ini mengusulkan pengembangan sistem pendukung keputusan untuk memilih calon mustahiq zakat secara efektif dan adil di Masjid Nur-Hadi di kelurahan Dadimulyo, Lingkungan 2, Kisaran, Sumatera Utara, menggunakan metode SMART (Simple Multi Attribute Rating Technique) dan MOORA (Multi-Objective Optimization on The Basis of Ratio Analysis). Tahap penelitian melibatkan observasi, wawancara, dan studi pustaka. Lima kriteria digunakan dalam penelitian ini, termasuk pendapatan, jumlah tanggungan, tempat tinggal, kriteria khusus, dan kondisi kesehatan. Data mustahiq zakat fitrah tahun 2024 digunakan untuk analisis sebanyak 10 data. Hasil perankingan dari kedua metode tersebut kemudian dibandingkan dengan keputusan yang diambil oleh panitia zakat Masjid Nur-Hadi. Melalui metode SMART, sistem memberikan peringkat terbaik kepada alternatif yang paling sesuai dengan kriteria yang telah ditetapkan. Metode SMART menunjukkan potensi untuk digunakan sebagai alat bantu dalam pengambilan keputusan zakat yang lebih efisien dan adil.
Sistem Pendukung Keputusan untuk Pemilihan Bibit Padi Berkualitas di Rawang Panca Arga menggunakan Kombinasi AHP dan MAUT
Authors: Hutapea Tiofani Br , Dani Rika , Aruan Nita Aulia , Frandika Imam , Hud Sofana Bayor , Afrisawati Afrisawati
Published: July 2024

Keberlanjutan budidaya padi sangat bergantung pada bibit. Karena bibit merupakan komponen utama yang akan dikembangkan di masa depan, maka pemilihan bibit yang berkualitas merupakan langkah awal dalam proses penanaman padi. Ciri-ciri suatu tumbuhan dalam perkembangannya ditentukan oleh gen-gen yang diwarisi bibit dari tanaman induknya. Oleh karena itu, pemilihan bibit dari tetua unggul sangat penting dilakukan agar diperoleh bibit padi yang berkualitas. Bibit yang baik adalah yang mampu menyesuaikan diri dengan lingkungannya, tumbuh cepat dan seragam, tahan terhadap hama, serta menghasilkan buah yang banyak. Namun seringkali para petani mengalami kesulitan dalam memilih bibit yang tepat. Untuk mengatasi hal tersebut, akan dikembangkan sistem pendukung keputusan yang dapat membantu petani dalam memilih bibit yang memenuhi berbagai kriteria dan sesuai dengan lingkungan penanaman. Kerangka kerja ini menggunakan dua teknik, yaitu Analytic Hierarchy Process (AHP) untuk menentukan bobot kriteria dan Multi Attribute Utility Theory (MAUT) untuk tahap peringkat. Usulan pilihan sistem pendukung keputusan yang menggabungkan teknik AHP dan MAUT menunjukkan bahwa pilihan atau jenis bibit padi terbaik yang akan ditanam di Wilayah Rawang Panca Arga Asahan adalah Sidenuk yang menempati posisi pertama dengan nilai 0.3780781, disusul oleh Ciputri dengan senilai 0,4469573. Selanjutnya hasil penelitian ini menyarankan Sidenuk dan Ciputri sebagai bibit padi berkualitas yang layak ditanam di Kawasan Rawang Panca Arga Asahan.
Rancang Bangun Alat Lux Meter BH1750 Dengan Sensor Jarak HC-SR04 Untuk Uji Kesesuaian Kolimator
Authors: Fitri Anindyahadi  , Eko Nugroho  , Setyo Adi Nugroho
Published: July 2024

This research is based on the Regulation of the Nuclear Energy Supervisory Agency of the Republic of Indonesia Number 2 of 2018 concerning Conformity Tests for Diagnostic and Interventional Radiology One component that must be tested with a minimum passing standard of ≥ 100 lux at a distance of 100 cm. Data collection is obtained at the Calibration Agency to obtain accurate results. The purpose of this tool, the Lux Meter is equipped with a distance sensor to measure the light intensity of a collimator lamp with an intensity that must be ≥ 100 within a distance of 100 cm from the light source. So, making a tool that can be used to measure the amount of collimator illumination is accompanied by measuring the distance, so that it can ensure the results are in accordance with the limits that have been determined with a Lux Meter equipped with a distance sensor using the BH1750 module and the HC-SR04 module. For testing the tool made, it was compared with a Standard Lux Meter with the HIOKI brand, an average error value of 0.021 at a distance of 50cm, an error of 00.020 at a distance of 100cm, and an error of 0.022 was obtained, while for testing the distance sensor it was compared with a Standard Meter with the FLUKE brand. The average percentage error value is 0.002 at a distance of 50cm, an error of 0.011 at a distance of 100cm, and an error of 0.008 at a distance of 130cm.
Analisa Pemborosan Pada Proses Produksi Bok Travo Dengan Metode Value Stream Mapping Di PT XYZ
Authors: Ferraldo Kusuma Artono Putra  , Rr. Rochmoeljati
Published: July 2024

PT. XYZ, sebuah perusahaan manufaktur, memproduksi berbagai produk, termasuk Bok Travo. Perusahaan bertujuan untuk mengurangi limbah dalam proses produksinya untuk meningkatkan keuntungan dan tetap kompetitif di industri. Untuk mencapai hal tersebut, sebuah penelitian dilakukan untuk mengidentifikasi, mengurangi, dan mengusulkan perbaikan limbah dalam proses produksi Bok Travo. Studi ini menggunakan konsep lean manufacturing dengan menggunakan alat pemetaan aliran nilai dan metode Failure Mode and Effect Analysis (FMEA). Hasil pemetaan aliran nilai menunjukkan bahwa waktu produksi Bok Travo dapat dikurangi dari 2559 menjadi 2159 menit. Dengan menggunakan metode FMEA, akar penyebab pemborosan tertinggi diidentifikasi sebagai cacat seperti permukaan material yang tidak rata, kebocoran, kerataan, dan goresan pada produk. Rekomendasi perbaikan yang diusulkan antara lain penambahan waktu pengelasan dan pemberian support selama pengelasan, serta pengecekan silang dimensi sebelum proses perakitan.
Welch-Powell Algorithm Implementation In Compiling Lecture Schedules In The Mathematics Education Study Program, Manado State University
Authors: Fernando Febrianto Kawatu  , James U. L. Mangobi  , Vivian E. Regar
Published: July 2024

This study aims to compile a Lecture Schedule at the Mathematics Education Study Program, Faculty of Mathematics Natural and Earth Sciences Manado State University using the Welch-Powell Algorithm. The scheduling of lectures at the Mathematics Education Study Program, Faculty of Mathematics and Natural Sciences, Manado State University often collides because several lecturers have different numbers of courses and credit rights. This it can be seen that the method of preparing lectures used is still not effective and efficient. Preparation of a course schedule is an action taken so that time can be managed as effectively and efficiently as possible. The preparation of this lecture schedule will use a simple graph with input data, namely the number of lecturers, number of courses, credits for each course, days used in the week, time slots and number of classes used. After getting the input data, point coloring is carried out in coloring on the graph using the Welch-Powell Algorithm assisted by MATLAB software to get an effective and efficient class schedule. Lecture Schedule Arrangement in the Mathematics Education Study Program, Department of Mathematics, Faculty of Mathematics, Natural and Earth Sciences, Manado State University using the Welch-Powell Algorithm produces a schedule that does not collide, so that the Welch-Powell Algorithm can help prepare an effective and efficient class schedule .
Analisis Pengendapan Jumlah Volume Sedimen di dalam Saluran Primer D.I Cipicung Kecamatan Cipunagara Kabupaten Subang
Authors: Deny Ernawan
Published: July 2024

This study aims to determine the amount of deposition due to the volume of sediment mixed with solid household waste in the canal which is high enough to become shallow, resulting in a change in the geometric cross-section of the canal in the primary canal and damage to the irrigation network of D.I. Cipicung. The method used in this research activity uses a mathematical analysis technique from Chow and Grag theory in the form of sediment depth and geometric changes in the channel cross section. The results show that the volume of sediment deposited in the primary canal is Vq primary = 16.24 m3 (section length of 50.5 meters from a channel length of 300 meters) and the geometric change in the cross section of the primary channel is A = 1.24 m2. The amount of sediment volume that affects the geometric changes in the cross-section of the primary channel that needs to be repaired is that the canal linings are still alluvial with construction linings, removal of sediment that has been mixed with solid waste, and periodic maintenance.
Usulan Penjadwalan Perawatan Mesin Filling Secara Preventive Dengan Modularity Design Dan LCC Di PT. Petrosida
Authors: Tarisa Nindyas Sari  , Endang Pudji W
Published: July 2024

PT. Petrosida is a manufacturing company engaged in pesticide production. The production system in this company is Make To Order (MTO) where the company will produce products after an order or order from consumers. In its production PT. Petrosida has problems with the main tools used for packaging, one of which is a 1-liter induction semi-automatic filling machine in the herbicide unit, where treatment is carried out after damage to a component. Critical components in filling machines experience an average of 20 times damage in 2022-2023 and the machine maintenance process is still not optimal with an average downtime of 5 hours / month. Therefore, the purpose of research is to be able to carry out preventive maintenance using the modularity design method in the hope that there will be no more breakdowns that hamper the production process so as to reduce machine maintenance costs and to find out the minimum total machine maintenance cost planning using the life cycle cost (LCC) method. By implementing preventive maintenance with modularity design, the total maintenance cost of Rp. 9,747,782 is lower than the company's total maintenance cost of Rp. 23,023,176 with an efficiency rate of 42.3%. And obtained the lowest total life cycle cost of Rp. 340,459,348, - with an optimal life on the machine of 3 years & the number of mechanics one person.
Analisis Pemilihan Supplier Bahan Baku Edamame Dengan Metode Fuzzy Analitycal Hierarchy Process (FAHP) Di PT XYZ
Authors: Wirawan Wijaksono Walddeon  , Dira Ernawati
Published: July 2024

This study aims to analyze the selection of edamame raw material suppliers at PT XYZ using the Fuzzy Analytical Hierarchy Process (FAHP) method. This research involves the process of collecting primary and secondary data which includes identification of supplier selection criteria, collection of criteria and sub-criteria data, and collection of supplier performance data. The results showed that the relevant supplier selection criteria in the context of edamame raw materials at PT XYZ were product quality, price, supply reliability, sustainability and reputation. Based on the FAHP method, the relative weight of each criterion and sub-criteria has been calculated, which helps in evaluating potential suppliers. In addition, supplier rankings are also determined based on the resulting priority values. In conclusion, the FAHP method can be used as an effective tool in selecting raw material suppliers for edamame at PT XYZ. This method helps in reducing uncertainty and complexity in decision making, as well as providing more objective and structured results.
Strategi Perawatan Mesin Di Line Sabroe Menggunakan Metode RCM Dan MVSM Di PT XYZ
Authors: Nanda Firlana  , Joumil Aidil
Published: July 2024

This study aims to analyze the RCM (Reliability Centered Maintenance) and MVSM (Maintenance Value Stream Mapping) strategies implemented by PT. XYZ in machine maintenance at the Sabroe Line. RCM is used to reduce equipment failures and ensure that each physical item or system is functioning as intended. Meanwhile, MVSM is used to identify waste in maintenance activities and perform repair analysis. The research method used is qualitative research with a case study approach. Data was collected through observation, interviews and analysis of related documents. The results of the research show that PT. XYZ has implemented the RCM and MVSM strategies effectively in engine maintenance at the Sabroe Line. RCM implementation helps to reduce machine failure and increase machine reliability. Meanwhile, MVSM helps identify and overcome waste in maintenance activities. In conclusion, the RCM and MVSM strategies are effective approaches in engine maintenance at the Sabroe Line. This research provides a better understanding of the importance of a planned and structured maintenance strategy in improving engine performance. The recommendation for future research is to involve more departments and measure the impact of RCM and MVSM strategies on overall operational productivity and efficiency.
Analisa Penyandian File Dokumen Kriptografi Menggunakan Advanced Encryption Standard (AES)
Authors: Terisha Sheline Shazhaq  , Muhlis Tahir  , Khoirul Amin Abidin  , Vivia Auria  , Diana Iis Maulidia  , Dwi Fatkhul Mu’in  , Moh Khoiruddin
Published: July 2024

(Cryptography Advanced Encryption Standard (AES) for File Document Encryption). Advanced Encryption Standard (AES) is a cryptographic algorithms as a standard symmetric key encryption algorithm that used in current time. AES 128 has 1 blok plaintext with 128 bit sized, where in the process of cryptographic algorithms, first the plaintext is converted into hexadecimal-sized 4 x 4 matrices called the state, where each element of state has 1 byte size. The process of encryption on AES is the transformation towards the state repeatedly in the 10th round. Each round of AES requires one key result of the key generation using 2 basic transformation, i.e. substitution and transformation. AES encryption using 4 transformation by the following sequence: subbytes, shiftrows, mixcolumns, and addroundkey. On the other hand, the process of decryption is using the inverse of all the basic transformation of AES algorithm, except addroundkey. Therefore, the sequence of transformation on the decription is invshiftrows, invsubbytes, invmixcolumns, and addroundkey. In the data text, the encryption process is initiated with convertion the data text into ASCII code in hexadecimal numbers that are molded into the matrix 4 x 4 bytes. Next, do some basic transformation such as subbytes, shiftrows, mixcolumns, and addroundkey. However, when performing the transformation, the processed data on every trasformation is in the form of binary data obtained from the hexadecimal matrix. AES 128 bit cryptography have room 2128 keys which is a tremendous value and is considered secure to use to avoid the brute force attack.
Perencanaan Jadwal Perawatan Komponen Mesin Roll Forming Baja Ringan Untuk Meminimumkan Biaya Perawatan
Authors: Risky Lazuardi Irsyad  , Siti Mundari
Published: July 2024

PT. Nadha Karya Utama Indonesia, a company engaged in the manufacturing service industry that produces mild steel, located on Jl. Cold Hamlet, RT 04 RW 07, Ngronggot, Kab. Nganjuk, East Java. The purpose of this study is to plan the Roll Forming machine maintenance schedule in order to minimize maintenance costs. The method used in this study is using the Preventive Maintenance method. The calculation results obtain the reliability value of each component on the Roll Forming machine, namely 0.5 for the reliability of the Roll component, 0.5 for the Gear Box component, 0.5 for the Main Engine component, 0.46 for Bearings, and 0.5 for reliability Roll Stand. Determination of maintenance time intervals is based on Peventive Maintenance on Roll components for 37 days, Gear Boxes for 108 days, Main Machinery for 108 days, Bearings for 53 days, and Roll Stands for 146 days. Based on the calculation results, the total cost of maintenance before carrying out preventive with reliability is known to be Rp. 19,340,000, after carrying out preventive calculations with reliability is Rp. 13,120,139.10, it can be seen that before and after carrying out preventive calculations there is a difference in costs of Rp. 6,219. 860.9. From these results it is known that preventive maintenance can reduce the costs incurred by PT. Nadha Karya Utama Indonesia from before the Preventive Maintenance calculations were carried out.
Rancang Bangun Sistem Pendeteksi Kebocoran Gas Secara Portable pada Distributor Gas Rumah Tangga
Authors: Zamzak M.Arif , Sudiarsa I Wayan , Putra I Dewa Putu Gede Wiyata
Published: July 2024

In this research we design and build a portable gas leak detection system for household gas distributors. The performance of the designed system is described and evaluated. The system aims to speed up the time in detecting gas leaks. System portability allows implementation and monitoring in the form of a website. System design and performance are assessed and proven effective in detecting gas leaks, providing a reliable and efficient solution for gas distributors. The method used is the conditional method where the gas leak detection system is made with Nodemcu esp8266, sensor mq6, buzzer, step-down lm2596, and led. The results obtained from testing the leak detection system explain the testing and evaluation of the gas cylinder inspection system. The system is designed to check 3kg gas cylinders, category level 1 with numbers 300-500, category level 2 with numbers 500-750, category level 3 with numbers 750-1000, and category level 4 with numbers higher than 1000. Detection of gas leaks in each valve takes about 13 seconds to detect leaking gas, send data to the website and provide output to the buzzer.
Implementasi Software Pvsyst Untuk Perancangan PLTS Offgrid Di Kecamatan Binong Kabupaten Subang
Authors: Wendy Supriatna
Published: July 2024

The Meteorology, Climatology and Geophysics Agency predicts a long dry season will occur in Subang Regency in 2023 with the potential for El Nino for the next one year. Subang's solar energy potential reaches 4.8 kWh/M2. Solar energy is used to irrigate rice fields in Binong. The energy produced by solar panels is converted to motion energy which is used to suck up water. In this study it was found that solar energy produced by solar panels can drive an electric motor with a load of 2.4 kW for 6 hours which is used to meet the water needs in the fields.
PERENCANAAN SISTEM OPTICAL TRANSPORT NETWORK (OTN) PADA SISTEM TRANSMISI DWDM
Authors: Maeli Khusnul Munfiqoh  , Repdhi Febriyan  , Lubna Nadra Hasti  , Muhammad Rofiq  , Didik Aribowo
Published: July 2024

An OTN consists of a set of optical network elements connected by a fiber-optic link. OTN can provide the use of transport, multiplexing, routing, management, supervision and resilience of optical channels. OTN (Optical Transport Network) itself is a technology that can increase network bandwidth and reliability by building network functions into optical networks. . An OTN consists of a set of optical network elements connected by a fiber-optic link.
Analisa Tingkat Kecacatan Bata Beton Ringan Dengan Metode Seven Tools dan FMEA Di CV. XYZ - Mojokerto
Authors: Nur Rohkma Ais , Enny Aryanny
Published: July 2024

CV. XYZ is a manufacturing company whose main product is lightweight concrete bricks made in various sizes. Lightweight concrete brick with a thickness of 10 cm is the product that produces the highest defects compared to other products. The resulting defects have an average of 5% where this value exceeds the company's tolerance limit of 3-4%. Based on these problems, a study was conducted to determine the level of defects of lightweight concrete bricks and to provide suggestions for improvements to reduce defects. The research was conducted using the Seven Tools method and Failure Mode and Effect Analysis (FMEA). The results showed that the defect level of Lightweight Concrete Bricks from the highest to the lowest were chipped, cracked, uncut, and dimensional defects respectively. In addition, it can be seen that the Gompal failure mode with the cause of the disassembly or sorting process is too hard to produce the highest RPN score of 245, so that the recommendations for improvement need to be prioritized first.
Perancangan Ulang Tata Letak Fasilitas Workshop Fabrikasi Dengan Metode Systematic Layout Planning Di PT ABC
Authors: Ahmad Bayu Laksono  , Joumil Aidil Saifuddin
Published: July 2024

PT. ABC is a manufacturing company whose production line is railroad components. In the production process, there is backtracking in the production process so that the production process is less efficient. The purpose of this research is to compare the initial material handling layout mileage with the proposed layout. This study uses the Systematic Layout Planning (SLP) method to determine the layout proposals that will be provided with the help of Blocplan software. From the proposed layout, the total distance traveled for the passenger seat production process is 402.8 meters and at 277.8 meters the difference is 125 meters.
Penerapan Konsep Lean Service Untuk Perbaikan Pelayanan Servis Mobil Di Auto2000 Basuki Rahmat Surabaya
Authors: Adelia Hernalis Agustin  , Dwi Sukma Donoriyanto
Published: July 2024

AUTO2000 Basuki Rahmat is one of the branches dealer Toyota, which is located in the city of Surabaya, is engaged in services such as sales, maintenance, repair and supply of Toyota spare parts whose management is fully handled by the Astra Group. The company always strives to provide fast and accurate service, but customers spend quite a long time waiting because the car service process is relatively long. The long service time is caused by an unorganized operational system that causes waste (waste). Based on these problems, it is necessary to analyze Basuki Rahmat's car service services at AUTO2000 using the concept lean service by using the method value stream mapping, fishbone, and 5 whys. The research results obtained weight waste motion or transportation of 0.1481; waiting or delay of 0.1325; incorrect inventory of 0.1273; lack of customer’s focus of 0.1195; defect of 0.1065; duplication of 0.0935; overproduction of 0.0779; unclear communication of 0.0675; underutilized employees of 0.0675; And variation of 0.0597. Research recommendations that can be proposed to reduce waste including repairs layout, adding monitors on the service floor for matters of sending and receiving information, increasing the number of mechanics, making plans booking with different hours, making and applying the system tracking of the presence of the tool. Therefore, lead time the initial service service process of 170 minutes becomes lead time 128 minutes.
Strategi Penjadwalan Penggantian Roll Pada Mesin Rolling Mill Di PT. Z
Authors: Martina De Pores Rio Gani  , I Nyoman Lokajaya
Published: July 2024

PT. Z is one of the companies that produces steel plates located in Surabaya, East Java. Production process at PT. The Z fully uses machines that operate 24 hours a day. The bottleneck in the steel plate production process is that there are often breakdowns caused by people, machines, and materials. In the engine factor, there is often a machine breakdown that makes production stop. The smooth running of the production process is disrupted due to damage to the production machine. High downtime often occurs due to repairs and replacement of components in certain machine parts. Therefore the machine needs maintenance / maintenance (maintenance). Among all production machines, rolling mill machines are the machines with the highest downtime rates. The components in the rolling mill machine that cause the highest downtime of 12,851 minutes are roll components. This study intends to make a scheduling plan for roll replacement on rolling mill machines. The methodology used in this study is Preventive Maintenance by calculating its reliability and making a schedule for replacing and maintaining the machine. The results showed that the average roll replacement every 6 days with 63.21% reliability, and the average roll replacement process time was 131 minutes.
Analisis Preventive Mantenance Pada Komponen Mesin Finger Joint Untuk Mengurangi Downtime Pada PT. Romi Violeta Sidoarjo
Authors: Nur Moh. Danang Andrian  , I Nyoman Lokajaya
Published: July 2024

PT. Romi Violeta is a furniture company engaged in the production of rattan and wood products for the global market. The problem that often occurs is that the Finger Joint machine often experiences damage to the engine components. Therefore, the objectives of this research are to identify critical components in the Finger Joint machine, develop a maintenance scheduling for the machine's components, and compare the maintenance costs before and after implementing the scheduling. The analysis revealed that the Hydraulic component has a cumulative value of 40%, followed by the Cutter component with a cumulative value of 34.4%, and the Air Hose component with a cumulative value of 5.6%. Consequently, a preventive maintenance schedule was determined, with the Hydraulic component requiring maintenance every 31 days, the Cutter component every 36 days, and the Air Hose component every 207 days. This resulted in a reduction in maintenance costs from the previous amount of Rp.5,200,000 to Rp.1,210,847.
Pengendalian Kualitas Benang Plastik Dengan Pendekatan Metode Statistical Process Control
Authors: Mohammad Ilham  , I Nyoman Lokajaya
Published: July 2024

PK. Rosella Baru is a company operating in the plastic sack industry. In the production process of plastic sacks, there are several stages, including the production of plastic thread. The company still encounters a significant number of defects in the plastic thread, exceeding 2%, resulting in obstacles in the weaving process of the sacks and suboptimal production output. The research utilizes the Statistical Process Control method to identify solutions for quality control of the plastic thread products at PK. Rosella Baru. Based on the Pareto diagram, the most dominant defect is found in the unevenness of thread rolls, accounting for 43.3% of the defects. The control chart analysis shows that there are samples exceeding the upper control limit (UCL) in samples 1 and 9, and data exceeding the lower control limit (LCL) in samples 3 and 6. The cause and effect diagram identifies five factors: labor, machine, material, method, and environment. The most dominant cause is the lack of training for the workforce and insufficient maintenance of the machines, resulting in defective plastic thread. Therefore, the suggested solution is to perform regular machine maintenance, provide training to the workforce, and pay attention to machine settings and the quality of raw materials used.
Analisis Perawatan Komponen Chamber Box Pada Mesin Laminating Departemen Printing Produksi Kemasan Plastik (Studi Kasus:Pt.Daesang Ingredients Indonesia)
Authors: Ridhwan Dwi W  , I Nyoman Lokajaya
Published: July 2024

Miwon Indonesia is one of the companies that started as a company in 1973, the company finally changed the company's name with PT. Daesang Ingredients Indonesia The research method used is Preventive Maintenance, in this study researchers analyzed the time between laminating machine damage to the Chamber Box Heater component, the data taken was the Laminating machine down time data in July – December 2022 The results of analysis and data processing showed that the level of component reliability, namely for the chamber box heater component of 0.5892 occurred on day 5. And while the press roll rewinder component obtained a reliability level of 0.5925 on day 7. And the results of the calculation of costs before preventive maintenance are obtained at a cost of Rp. 47,953,572 per 6 months and costs after preventive maintenance are obtained at Rp. 29,677,876 per 6 months. With a difference of Rp.18,285,696. From the results of preventive maintenance costs, it can reduce maintenance costs at PT. Daesang Ingredients Indonesia than before preventive maintenance calculations are carried out.
Penerapan Metode Material Requirement Planning (MRP) guna Merencanakan Kebutuhan Bahan Baku (Studi Kasus: CV. AM Nanda Putra Sidoarjo)
Authors: Aldito Hermawan  , Siti Muhimatul Khoiroh
Published: July 2024

Company CV. AM Nanda Putra is located in Sidoarjo and operates in the scaffolding industry. Currently the company is experiencing losses due to a lack of optimization in planning the amount and time of ordering raw materials, which results in shortages and excess material inventory. To overcome this problem, the company uses the MRP (Material Requirement Planning) method in optimizing raw material planning. In terms of the lot sizing approach, the company applies the LFL and EOQ methods. The forecasting methods used are Moving Average (MA), Weight Moving Average (WMA), and Exponential Smoothing (ES). The smallest MAD results were obtained using the Exponential Smoothing (ES) method for all scaffolding products. The forecasting results are obtained to determine the MPS (Master Production Schedule) for the next 10 months. After the determination of  MPS, the results of Material Requirement Planning (MRP) were obtained, namely the supply of raw materials for MF 170 AM scaffolding of 35402 units or 17700 sets, MF 170 K1 scaffolding of 28906 units or 14453 sets, MF 190 AM scaffolding of 16250 units or 8125 sets, and MF 190 K1 scaffolding of 7656 units or 3828 sets. From the results of calculating the cost of raw material requirements using the Lot for Lot (LFL) method and the Economic Order Quantity (EOQ) method, it can be seen that the total cost of planning the smallest raw material inventory with an amount of Rp. 12,975,818,022.
Analisis Pengendalian Kualitas Guna Meminimalsir Deffect Dengan Pendekatan Metode Statistical Quality Control (SQC) (Studi Kasus di PT. Romi Violeta Sidoarjo)
Authors: Akhmad Fatikul Azzam  , Setijanen Djoko Harijanto
Published: July 2024

PT Romi Violeta Sidoarjo is one of the furniture companies in Indonesia, specializing in rattan and wood products, offering them to the global market. Quality is also a key factor for the company, as good quality is considered an achievement. In the production process, there are inevitably product errors that do not meet specifications or defects, one of which occurs during the finishing process, where there are 8 types of defects. In the data of the quality control department for finishing in the year 2022, there were 246 instances of defects out of a total production of 10,921. This can hinder further production processes, and the company will incur losses due to costs and expenses for repairing defective products. The research is conducted with the aim of determining the level of product quality control, the causes of product defects, and preventive actions or improvement proposals to reduce the defect rate. The method used in this research is Statistical Process Control (SPC), which aims to minimize the defect rate. From the calculations and analysis of the Statistical Process Control (SPC) results for the eight types of defects, the dominant defect type is color variation, which accounts for 67 instances with a percentage of 27.2%. Furthermore, on the control chart calculations, findings were made for the data samples in January, June, August, and September. The cause-and-effect diagram revealed factors such as human, machine, raw materials, methods, and the environment that can contribute to defects. However, the largest cause is human error, as almost 90% of the finishing work is done by humans, often without following the Standard Operating Procedures (SOP) set by the company.
Implementasi Metode Material Requirment Planning (MRP) Dalam Melakukan Perencanaan Persediaan Bahan Baku Kursi Susun Pada CV XYZ
Authors: Arifa Yuriyadi  , Siti Muhimatul Khoiroh
Published: July 2024

CV XYZ is a company engaged in manufacturing with production in the form of stacking chairs. This company has a production capacity of 200 units of stacking chairs every day. The company has 3 types of bunk chairs, namely CH-100 KR, CH-200 KR, and CH-200 PC. Customer demand at this company tends to be fluctuating (up and down) which results in the company experiencing difficulties in determining the optimal raw material inventory to meet customer needs. The Material Requirement Planning (MRP) method is an appropriate method for scheduling inventory. The result of this scheduling model is in the form of a master production schedule (JIP) which is used to determine the demand for chair products for the next 6 months. The results of data processing obtained requests for stacking chairs in the next 6 months for the type CH-100 KR 10.724 unit, CH-200 KR of 10.998 unit, and CH-200 PC of 9.687 unit. The demand is then calculated using the MRP approach with LFL and EOQ. An effective material requirements planning method with the lowest cost is to use the Lot For Lot (LFL) method which gives the lowest cost results IDR 7,475,617,611.
Analisis Penentuan Perawatan Mesin Roll Table 5Q Dengan Metode Reliability Centered Maintenance (RCM) II Dan Life Cycle Cost (LCC) Di PT XYZ
Authors: Widya Amelia Krisnanda  , Endang Pudji Widjajati
Published: July 2024

Machine maintenance must be carried out as a support for the reliability of a machine so that the production system can run smoothly to meet production needs. The fundamental problem of this study is in PT XYZ with the Roll Table 5Q machine, which frequently experiences sudden damage caused by critical components. The goal of the study was to determine the maintenance time interval of the 5Q Roll Table machine, the optimal age of the machine, and the number of mechanics based on the minimum total maintenance cost in an effort to improve the reliability of the machine using the Reliability Centered Maintenance (RCM) II methods and Life Cycle Cost (LCC) methods. From the results of research for critical components As Roll Table obtained interval value of 331 hours / 13 days once a year with the selection of action is Scheduled restoration task and for Bearing components obtained interval value of 109 hours/5 days once a year with the selection of action is Scheduled on-condition task. From the calculation of the total life cycle cost of Rp. 3,720,459,386 with the optimal number of mechanics on the Roll Table machine as many as 3 mechanics with an efficiency level of 9.63% with an optimal age for the Roll Table machine 5Q is 12 years.
Identifikasi Risiko Bahaya Pada Proses Produksi Batu Alam Di Stasiun Pemotongan Menggunakan Metode Hirarc Dan Five Why's
Authors: Dicky Tri Sandyayuda  , Widya Setiafindari
Published: July 2024

PBA Surya Alam is one of the industries engaged in the natural stone processing industry (PBA) which has a fairly high risk of work accidents due to the lack of hazard control in the production process for workers. The application of occupational safety and health at PBA Surya Alam has been implemented, but its application has not been maximized, such as in terms of worker awareness in using personal protective equipment (PPE). From 2020 the cutting station experienced 7 work accident cases, in 2021 the cutting station experienced 4 work accident cases, and in 2022 the cutting station experienced 2 work accident cases. The purpose of this study was to determine the potential for work accidents, risk assessment, and efforts to control hazard risks in natural stone production process activities. In addition, this study aims to determine the most dominant risk controls and provide suggestions for controlling work accident factors in the natural stone production process. Therefore, this study uses the HIRARC (Hazard Identification Risk Assessment and Risk Control) method, which is a method for determining potential hazards that occur, knowing risk assessment to determine risk levels and knowing risk controls to reduce the occurrence of work accidents. The results of calculations using the HIRARC and 5W + 1 H methods show that there are 6 cases of potential hazards recorded at PBA Surya Alam with each risk, namely 6 cases of potential hazards with extreme risk, then as many as 8 potential cases hazard with high risk (high risk), as many as 5 cases of potential hazard with high risk. Whereas for the 5 W + 1 H method in the process of cutting Natural Stone from the results of observations and observations in the field making control proposals such as installing SOP signs at Natural Stone production stations so as a reminder when operators are working, safety controls for employees and safety helmets to minimize falling products (PPE), and controlling the use of gloves.
Identifikasi Keselamatan Dan Kesehatan Kerja Menggunakan Metode Hazop Dan Bowtie Pada PT Alis Jaya Ciptatama
Authors: Thegar Gilang Rachmawan  , Widya Setiafindari
Published: July 2024

The purpose of this study is to find out what are the most dominant work accidents, what are the impacts that occur from work accidents, as well as appropriate risk control adventures for work accidents due to 13 work accidents in 2021 to 2023 which cause a loss of 33 working hours day at PT Alis Jaya Ciptatama. The method used is the Hazard And Operability Study (HAZOP) method and Bowtie analysis to identify potential occupational safety and health hazards by limiting the probability criteria in quantitative and consequence calculations and analyzing the risk path from cause to consequence using a bowtie diagram. The results obtained are that the highest activity is in activity code 3b with an LI value of 38.3, then in the smallest activity code 2a with an LI value of 10. The risks that occur fall into the high, medium, and low severity categories, so the warning given What is given is to install machine guards and ensure the operator has qualified machine usage skills.
Analisa Pemborosan Pada Proses Produksi Air Minum Dalam Kemasan Dengan Metode Value Stream Mapping Dan Waste Assesment Model Di CV Dafista Mulia
Authors: Moh Rizky Ainul Yakin  , Enny Aryanny
Published: July 2024

CV Dafista Mulia is a drinking water producer company located in Lamongan Regency. The problem that is often faced by companies is the amount of waste that occurs in the process of producing bottled drinking water. The most critical percentage of waste in the bottled water production process (AMDK) is waste overproduction with a weighting percentage of 25.4%; waste defet with a weighting percentage of 16.2%; waste inventory with a weighting percentage of 14.9%; waste unnecessary motion with a weighting percentage of 14.1%; waste transportation with a weighting percentage of 11.7%; waste waiting with a weighting percentage of 9%; and waste excess processing with a weighting percentage of 8.7%. The initial activity time before the repair was 466 minutes (7 Hours 46 Minutes) and after the repair was reduced to 416 minutes (6 Hours 51 Minutes). Based on the Failure Mode and Effect Analysis (FMEA), it is known that the root cause of the problem with the highest waste is Overproduction, namely production planning that is not quite right with a Risk Priority Number (RPN) score of 396. Recommendations for improvements that can be proposed are to carry out production planning using data - historical data that exists and is adjusted to balance the purchasing of raw materials with orders from consumers so that the results of the Overproduction can become a safety stock so that the Overproduction can function in the next consumer order.
Penerapan Kaizen Improvement Pada PT DSV Solutions Indonesia
Authors: Rechal Wulandari
Published: July 2024

The purpose of this study is to determine the flow of work processes in the warehouse from the inbound, inventory and outbound processes, follow mentoring held every week by doing post test and pre test mentoring, and identify opportunities for improvement in the warehouse in an effort to reduce waste. The research method used by the author in this study is continuous improvement, or kaizen. The results showed that almost about 50% of the writers' activities at PT. DSV Solution Indonesia deals with labeling products with K3L (Safety, Occupational Health &; Environment) labels. This product labeling activity requires a level of accuracy and concentration so that the goods labeled are in accordance with the established category. The products labeled are footware or footwear products such as shoes or sandals. Both shoes and sandals each have an identical number of different K3L labels, not only that each category of product type is then distinguished again according to the origin or origin of the product made. The origin of products that go through the K3L label stage usually comes from Indonesia, Vietnam, and China. So for the number of identical numbers, the K3L label amounts to 6 according to the category of origin and also the type of product.