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Jurnal Ilmiah Poli Rekayasa

JPR
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Published by Politeknik Negeri Padang

ISSN : 18583709 EISSN : 26853922 DOI : 10.30630/jipr

Core Subject : Education,

Education

Jurnal Ilmiah Poli Rekayasa adalah jurnal ilmiah yang diterbitkan 2 edisi dalam setahun, bulan April dan Oktober. Terbit sejak tahun 2005. Fokus Kajian jurnal ini adalah Fokus kajian artikel dalam JPR mencakup Mechanical Engineering, Civil Engineering, dan Electronica, Electricty dan Telecomunication EngineeringLingkup Jurnal Ilmiah Poli Rekayasa meliputi : 1) Energi terbarukan (rewnable energy), 2) Inovasi kendaran bermotor hemat BBM, 3) Material Maju, 4) Emisi dan pembakaran motor bakar, 5) Rekayasa termal dan fluida, 6) Rekayasa power plant, 7)Material komposit, 8) Biomaterial, 9)Teknologi pengujian tak merusak (Non Distruction Test/NDT), 10) Kontrol dan mekatronika, 11) Planing untuk pengurangan resiko bencana, 12) Sistem transportasi antar moda, 13) Rekayasa konstruksi, bangunan, jembatan dan Jalan, 14) Manajemen daerah aliran sungai, air tanah, sedimen dan waduk, 15) Remote Sensing Harap baca panduan ini dengan seksama. Penulis yang ingin mengirimkan artikel ke Jurnal Ilmiah Poli Rekayasa, harus mengikuti panduan penulisan. Jika artikel yang dikirim tidak sesuai dengan panduan penulisan atau ditulis dalam format yang berbeda, maka akan DITOLAK oleh editor sebelum ditinjau lebih lanjut. Para editor hanya menerima artikel yang memenuhi format yang ditetapkan. Artikel ditulis dalam bahasa indonesia. Jurnal Ilmiah Poli Rekayasa menggunakan prosedur penilaian Double Blind. Dimana antara penulis dengan mitra bestari tidak saling mengenal identitasnya masing-masing. Silahkan kirimkan artikel anda dan untuk unduh Template DI SINI Etika Publikasi dapat dilihat pada tautan berikut ini : ETIKA PUBLIKASI.

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Articles 179 Documents

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Aplikasi Digitalisasi Seni Bela Diri Silat Tradisional Minangkabau Tri Lestari -; Taufik Gusman -; Defni - -; Muhammad Yosazikri Ikhsan
Jurnal Ilmiah Poli Rekayasa Vol 16, No 1 (2020): -
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Minangkabau traditional martial arts digitization app is an android game-shaped application created to display minangkabau silat using 3-Dimensional (3D) animation technology. This app will convert materials and illustrations into 3D animated shapes that can be played using the android app so that it will attract users to more easily understand and understand about minangkabau silat. The data that is made as a necessity for application is obtained from literature studies and field studies by using interview techniques with silat officials in Padang city. For the creation of this game application using virtual reality technology and the tools used are 3 Dimensional blender and Unity Game Engine.

Analisa Erosivitas Lahan Pada DAS Batang Agam Dengan Menggunakan Model SWAT Irfan Gustio -; Dwi Putri Jingga; Elvi Roza Syofyan; Chairul Muharis -
Jurnal Ilmiah Poli Rekayasa Vol 16, No 1 (2020): -
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Batang Agam River is a river that flows along Bukittinggi City, Agam Regency, Fifty Cities Regency, Tanah Datar Regency, Payakumbuh City and empties into the Batang Sinamar River. The Batang Agam River, which crosses the residential area, is mostly used for agriculture, fisheries, tourism, mining and other activities. Community activities in the area of the Batang Agam River have resulted in a decrease in the function of the river which is characterized by narrowing, silting and pollution of the river. In addition, it is influenced by the ever-changing river water discharge, land conditions and changes that occur in the river channel. In addition, the negative behavior of the community and all their activities around the river basin also triggers damage to the river. This research was conducted to determine the value of land erosivity towards changes in land use area in the Batang Agam watershed, in this study using land cover in 2010, 2014, and 2019 using the Soil and Water Assessment Tool (SWAT) model and manual calculations were carried out using the USLE method as ratio. The analysis consists of four processes, namely watershed delineation, formation of a Hydrologic Response Unit (HRU), formation of climatological data, and finally the simulation process. The results of the HRU analysis showed that the Batang Agam watershed became 7 sub-watersheds, the dominant HRU was primary forest. In the case of Batang Agam, it was found that the level of erosion hazard was in the light category and the erosion value decreased in each review year.

(MOLDING DESIGN OF PADANG STATE POLYTECHNIC LOGO SOUVENIR MOLDING ON PRESSED PLASTIC INJECTION MOLDING MACHINE 1,960 KG / CM²) Alfian Alfian
Jurnal Ilmiah Poli Rekayasa Vol 16, No 2 (2021)
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

ABSTRACT Padang State Polytechnic has been established since 1987 under the name Polytechnic Engineering and then changed its name several times to the management policy by Andalas University then, until now it is independent until now with the name Padang State Polytechnic. The 33-year-old polytechnic of the Padang State Polytechnic establishment must have an icon, symbol and trinkets that have PNP characteristics so that they are easy to recognize and remember. Souvenirs are a form of applying media for promotion and souvenirs for people who already know and come to Padang State Polytechnic. Plastic injection molding machine is a machine used to mold plastics with a basic material in the form of plastic pellets. Plastic injection molding machine is the process of processing plastic material in the form of seeds which are heated until they become liquid and then injected into the molding which then freezes / hardens according to the shape of the mold. The products produced by injection molding machines vary, from electronic tools, automotive tools, home appliances, plastic souvenirs, to tableware. The success of the resulting product is highly dependent on Molding. The plastic injection molding machine has parts, namely the Injection Unit, Molding Unit and Clamping Unit. The Injection Unit and Clamping Unit are the most important parts in the manufacturing process of plastic products where the control operation is executed on the control panel found on the plastic injection molding machine. The control panel on the machine can adjust the amount of clamping pressure, stroke length, plastic volume, and temperature used. The molding unit is the main part of the plastic product manufacturing process. Mold (mold) is a tool / tool used to make products according to the desired design (shape and dimensions). Plastic molding has its respective functions, parts of the mold, namely Cavity and Core, Sprue, Runner and Gate, Undercut. The printing process on a Plastic Molding machine has several stages such as the cutting process, mold safety and machine safety, execution, product check, setting, execution, and final. Materials used in the Plastic Molding process are usually materials that are often used daily and are safe for use by all groups, such as Polyproplene, Polycarbonate, and High Density Poly Ethylene. The product that will be produced from the molding made is a key toy souvenir made of plastic, with a shape like the Padang State Polytechnic logo, measuring 6 cm long, 6 cm wide and 5 mm thick. The test results obtained will be shown through field applications, socialization at the Padang State Polytechnic and writing in national journals are the targets and outputs of this novice lecturer research activity. Keywords— Mold, Souvenir, Cavity, Core, Pnp.

Analisis Kebutuhan Modal Kerja Kontraktor Berdasarkan Sistem Pembayaran di Gedung Rawat Inap Rumah Sakit Sanjiwani Gianyar Made Sudiarsa; I Ketut Sutapa
Jurnal Ilmiah Poli Rekayasa Vol 16, No 2 (2021)
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

A construction project is a series that is only implemented once and is generally short-term, with limited resources. Before the implementation of a construction project runs, it usually starts with the preparation of a work plan and a project implementation time (time schedule). The realization of work plans in the field often experiences delays in the process, because revenue realization is very much determined by the selection of the payment system used by the contractor which will affect the project cash flow (cash flow), the amount of working capital required, the progress of a job, and to determine policy alternatives. that needs to be done so that the project does not experience a deficit. This study aims to determine the payment system that requires less working capital and benefits the contractor in terms of project benefits. The analysis uses 2 alternative policies carried out by the contractor during the project, alternative 1 by making a loan to the bank and alternative 2 with a material payment policy. From the results of this research analysis, it is found that the MC payment system does not require working capital because the project cash flow condition is always a surplus, while the term payment system requires working capital in the form of a bank loan of IDR 410,000,000.00 so that the project cash flow condition does not experience a deficit, as was done. on policy alternatives 1.

PENGENDALIAN PERANGKAT ELEKTRONIK BERBASIS MIKROKONTROLLER DENGAN ANDROID Fanni Sukma; Dwiny Meidelfi; Ronal Hadi; Heru Samudera
Jurnal Ilmiah Poli Rekayasa Vol 16, No 2 (2021)
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

The very rapid development of technology and the high level of human innovation have made the emergence of increasingly sophisticated technological products, one of which is the MCU node, a microcontroller system that has been integrated with various electronic modules and by using the C++ programming language, the automatic smart home control system, is one of the technological advances in the field of mechanics and electronics, both digital and analog, by integrating a smartphone as a remote to turn on and turn off certain electrical equipment using the MCU node as the main control and a link between smartphones. Remote application smart home as a media user interface for giving commands via the smartphone which will be executed by the MCU node and then the relay which will execute the electrical equipment installed at home

EFISIENSI BIAYA PROYEK MELALUI PERUBAHAN DISAIN PADA PEKERJAAN FINISHING KAYU Ni Kadek Sri Ebtha Yuni
Jurnal Ilmiah Poli Rekayasa Vol 16, No 2 (2021)
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Project cost efficiency can be done in things such as value engineering. The value engineering process can be carried out at the conceptual, planning and implementation stages of the project. Design changes also have an impact that affects the performance of construction implementation. Currently wood material is still widely used for finishing work, such as the roof of a pergola, room dividing walls, or just as a glass clamp. This research uses quantitative descriptive analysis, which begins by calculating the volume of work, determining the coefficient of wood material, compiling a unit price analysis, calculating the budget for existing designs and changing designs, making comparisons between the two designs. The unit price of the existing design for a room dividing work with 30x50 mm wood including a frame with 50x70 mm wood is IDR 2,597,451 per m2. For roof work, timber lattice pergola with 40x60 mm wood is Rp. 848,726 per m2, and grilling work for lattice with 40x60 mm wood is Rp. 777,070 per m2. The total budget for the existing design is Rp. 335,303,754.84. The total cost budget with the design change is IDR 289,335,447.58. The cost efficiency between the existing design and design changes is IDR 45,968,307 or 15.90%

PEMBUATAN WESTAFEL MINI OTOMATIS DENGAN MEMANFAATKAN KEMBALI AIR KONDENSASI AC Rina Rina
Jurnal Ilmiah Poli Rekayasa Vol 16, No 2 (2021)
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

The current condition of Covid-19 requires washing hands with more intensity so that it requires more water. While the water from the condensation of the Air-Conditioner is wasted. So from that an automatic mini sink was made with the water source taken from the condensation of the Air-Conditioner. This sink is designed to make it easier to wash your hands without the need to touch the water tap and the soap. Automatic mini westafel is assembled with IR sensor, 1 channel 5 V relay, IC 7805, 12 V water pump, 12 V mini vacuum pump, 12 V 30 A 4 pin relay, and a 12 V adapter which functions as an automatic working system on water faucets and soap. Air-Conditioner condensation water with a power of 1 PK produces 8.8 L / day (8 hours of work) can be used to wash hands 35 times if once washing water is used 0.25 L. The construction of the automatic mini sink frame is designed using PVC material ¾ '' with the aim of making it easier for water to flow through the pipe frame. Keywords: Design, automatic mini sink, Air-Conditioner condensation

Pengaruh Penerapan Kebijakan Sistem Manajemen Keselamatan Dan Kesehatan (SMK3) Terhadap Kepuasan Kerja Tenaga Kerja Pada Proyek Kantor Perwakilan Bank Indonesia Provinsi Bali I Ketut Sutapa; I Nyoman Suardika; Made Sudiarsa; I Kadek Andita Putra
Jurnal Ilmiah Poli Rekayasa Vol 16, No 2 (2021)
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

This study aims to determine how much effect the implementation of SMK3 policies on workforce satisfaction in construction projects. In this study using descriptive quantitative research methods. The data collection method used a questionnaire that was distributed to the project workforce using 25 people as a sample. The research instrument test used the validity test, reliability test, multicollinearity test, and probability plot normality test, while the data analysis method used multiple linear regression analysis, F test and t test. The research results can be concluded as follows. First, the SMK3 policy variable that has the most dominant influence on workforce job satisfaction is the variable of implementing the K3 plan. Second, the SMK3 policy variables, namely, the establishment of OHS policies, OHS planning, implementation of K3 plans, monitoring and evaluation of K3 performance, and reviewing and improving SMK3 performance have a joint effect on job satisfaction of workers in the project.

Analisa Kajian Penggunaan Alat Berat Pada Pekerjaan Tanah Proyek Pembangunan Jalan (Studi Kasus : Zona I Pada Proyek Pembangunan Jalan Tol Padang-Pekanbaru By Pass Km 25) Jajang Atmaja
Jurnal Ilmiah Poli Rekayasa Vol 17, No 1 (2021)
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

A project work rarely runs smoothly, usually there will be some obstacles. Excavation, stockpiling, and compaction work is an early stage of road construction that requires heavy equipment assistance. One of the causes of problems that usually arise in earthworks using heavy equipment is in the form of an operator who is not skilled. This study aims to calculate the productivity, cost and time of heavy equipment and calculate the composition of heavy equipment usage. The method used in this study was to collect primary and secondary data. The results of the calculated analysis show that the most efficient composition is in the third alternative, namely 2 Excavators 676.04 m³ / day, 5 Dump Trucks 260.75 m³ / day, 2 Bulldozers; 807.93 m³ / day, 2 SheepFoot Rollers; 1215.90 m³ / day, 2 Vibration Rollers; 1215.90 m³ / day, and 3 Water Tanker Trucks; 479.99 m³ / day with a total cost of IDR 2,131,752,569.29

Optimalisasi Waktu dan Biaya dengan Metode Time Cost Trade Off Pada Proyek Konstruksi Jalan Monika Natalia; Jajang Atmaja
Jurnal Ilmiah Poli Rekayasa Vol 17, No 1 (2021)
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

During the implementation of project work, there are various kinds of problems that will hinder project performance, so that the project will not be completed as planned, whether it is not on time, quality, and the cost, which sometimes occurs swelling. The road widening project for Lubuk Alung - Kuraitaji Road, Padang Pariaman District experienced a delay in implementation in the 16th week with a deviation of -7.091%. For this reason, it is necessary to control project implementation using the earned value method. From the analysis, the total duration of the project is 170 days, while the contract time is 150 days. This indicates a delay in project implementation for 20 days. In order to keep the project duration in accordance with the contract duration, it is necessary to accelerate it using the Time Cost Trade Off method. Acceleration is done by comparing 2 alternatives, namely the addition of working hours (overtime) and additional work shifts. After the comparisons were made, the additional acceleration cost of overtime work hours was Rp. 1,676,510,600.23 and alternative work shifts of Rp. 307,721,835.6 for direct costs. So the alternative chosen is an alternative work shift, because it has a small incremental cost, and is more efficient than using an alternative working hour overtime, while the duration of the project completion has returned to the contract time. The additional cost that must be paid by the contractor if the acceleration is not carried out is IDR 1,013,632,840.6, it would be more appropriate if the acceleration was carried out to overcome the delays in the Lubuk Alung - Kuraitaji Road Section in Padang Pariaman Regency, with a loss of IDR 307,722,000

Page 12 of 18 | Total Record : 179

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