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INDONESIA
Jurnal Kendali Teknik dan Sains
Published by Universitas Katolik Widya Karya Malang
ISSN : 29864429     EISSN : 29863228     DOI : 10.59581
Core Subject : Science,
Computer Science & IT
Jurnal ini meliputi pengetahuan dan informasi riset atau aplikasi riset dan pengembangan terkini dalam bidang teknologi. Ruang lingkup meliputi bidang Informatika, Teknik Mesin, Teknik Elektro,Teknik Sipil, Teknik Industri, Ilmu Komputer dan Sains.
Arjuna Subject : Ilmu Komputer (semua kategori) - Perangkat Keras dan Arsitektur
Articles 133 Documents
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Analisa Pemborosan Pada Proses Produksi Bok Travo Dengan Metode Value Stream Mapping Di PT XYZ Ferraldo Kusuma Artono Putra; Rr. Rochmoeljati
Jurnal Kendali Teknik dan Sains Vol. 1 No. 2 (2023): April : Jurnal Kendali Teknik dan Sains
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v1i2.11

Abstract

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 Fernando Febrianto Kawatu; James U. L. Mangobi; Vivian E. Regar
Jurnal Kendali Teknik dan Sains Vol. 1 No. 2 (2023): April : Jurnal Kendali Teknik dan Sains
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v1i2.13

Abstract

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 Deny Ernawan
Jurnal Kendali Teknik dan Sains Vol. 1 No. 2 (2023): April : Jurnal Kendali Teknik dan Sains
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v1i2.201

Abstract

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 Tarisa Nindyas Sari; Endang Pudji W
Jurnal Kendali Teknik dan Sains Vol. 1 No. 2 (2023): April : Jurnal Kendali Teknik dan Sains
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v1i2.224

Abstract

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 Wirawan Wijaksono Walddeon; Dira Ernawati
Jurnal Kendali Teknik dan Sains Vol. 1 No. 2 (2023): April : Jurnal Kendali Teknik dan Sains
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v1i2.281

Abstract

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 Nanda Firlana; Joumil Aidil
Jurnal Kendali Teknik dan Sains Vol. 1 No. 2 (2023): April : Jurnal Kendali Teknik dan Sains
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v1i2.282

Abstract

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.
Sistem Absensi Guru dan Staf Tata Usaha di SMKN 1 Praya Tengah Mansur Mansur; Jihadul Akbar
Jurnal Kendali Teknik dan Sains Vol. 1 No. 2 (2023): April : Jurnal Kendali Teknik dan Sains
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v1i2.308

Abstract

The attendance of teachers and administrative staff at SMKN 1 Praya Tengah is a document that records the hours of attendance for each teacher and administrative staff at SMKN 1 Praya Tengah. Recording the hours of attendance carried out by each teacher and administrative staff at SMKN 1 Praya Tengah can affect the net salary and allowances that will be received by the teacher and administrative staff each month, because the salary and allowances given depend on their attendance, with having an attendance application can certainly guarantee an accurate time record and prevent errors from occurring when compared to making notes manually. This accurate information helps provide precise details about each teacher and administrative staff at SMKN 1 Praya Tengah and can certainly help improve the performance of teachers and staff.
Analisa Penyandian File Dokumen Kriptografi Menggunakan Advanced Encryption Standard (AES) Terisha Sheline Shazhaq; Muhlis Tahir; Khoirul Amin Abidin; Vivia Auria; Diana Iis Maulidia; Dwi Fatkhul Mu’in; Moh Khoiruddin
Jurnal Kendali Teknik dan Sains Vol. 1 No. 2 (2023): April : Jurnal Kendali Teknik dan Sains
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v1i2.314

Abstract

(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.
Analisis Postur Kerja Pembuatan Rokok PT Wan Tobacco Cigarette Dengan Metode Standard Nordic Questionnaire (SNQ) Dan Rapid Entire Body Assessment (REBA) Ahmah Jainul Firdaus; Akmal Suryadi
Jurnal Kendali Teknik dan Sains Vol. 1 No. 2 (2023): April : Jurnal Kendali Teknik dan Sains
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v1i2.410

Abstract

This study analyzes work posture in cigarette manufacturing at PT Wan Tobacco Cigarette using the Standard Nordic Questionnaire (SNQ) and Rapid Entire Body Assessment (REBA) methods. Manual handling work has the potential to cause health risks due to physical loads and non-ergonomic postures. PT Wan Tobacco Cigarette faces problems with ergonomic risky work activities, especially in the cigarette manufacturing machine section, with worker complaints such as muscle fatigue and health problems in the hands, upper arms, back and neck. The SNQ method is used to identify complaints on the employee's body parts, while the REBA method is used to analyze work posture as a whole. This study focuses on assessing work posture when transferring tobacco to cigarette making machines. The REBA method was chosen because of the complexity and dynamics of employee activities. This research is expected to contribute to improving workers' posture to make it more ergonomic and help PT Wan Tobacco Cigarette control the risk of health problems caused by ergonomic factors. By identifying work posture problems and employee complaints, companies can implement changes in the design of work methods and work stations that are more ergonomic to improve worker comfort and welfare.
PERENCANAAN SISTEM OPTICAL TRANSPORT NETWORK (OTN) PADA SISTEM TRANSMISI DWDM Maeli Khusnul Munfiqoh; Repdhi Febriyan; Lubna Nadra Hasti; Muhammad Rofiq; Didik Aribowo
Jurnal Kendali Teknik dan Sains Vol. 1 No. 3 (2023): Juli : Jurnal Kendali Teknik dan Sains
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jkts-widyakarya.v1i3.537

Abstract

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.

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