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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 148 Documents

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Analisis Eksistensi dan Ketunggalan Solusi Model Epidemi SEIR Roni Tri Putra
Jurnal Ilmiah Poli Rekayasa Vol 10, No 1 (2014)
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

In this paper, it will be studied existence and uniqueness solution of equilibrium points for a SEIR model with infectious force in latent, infected and immune period. From the model it will be found investigated the existence and uniqueness solution of points its equilibrium. Existence solution of points equilibrium proved by show its differential equations system of equilibrium continue, and uniqueness solution of points equilibrium proved by show its differential equation system of equilibrium differentiable continue.

Installasi Base Transceiver Station (BTS) untuk Jaringan Node B pada Operator Hutchison 3 Indonesia (H3I) Uzma Septima -; Lince Markis -
Jurnal Ilmiah Poli Rekayasa Vol 11, No 1 (2015)
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Base Transceiver Station is a device used to connect mobile-phone or smartphone in order to make long-distance communication, although in doing the movement or in transit from one place to another. Installation Base Transceiver Station for Network Node B At the operator Hutchison 3 Indonesia is done to make the operator Hutchison 3 Indonesia signal received by the phone for the better and not dashed when the user performs long-distance communication links with conditions in performing the movement or in the course of one place to another. Methods beginning the process of physical installation of Base Transceiver Station for Node B network in the operator Hutchison 3 Indonesia and order all the Base Transceiver Station can live well after the battery is connected to a rectifier and the required accuracy when performing the installation Base Transceiver Station. Furthermore, the integration process or Commissioning of the Base Transceiver Station for Node B network operator Hutchison 3 Indonesia on this in order to actively and After Commissioning obtained Receive Signal Level sectoral antennas of -59 dBm which can emit a signal as far as 7 km to 8 km , after the new process or Pointing connection between this new Base Transceiver Station Base Transceiver Station with preexisting and Pointing between Siak new Base Transceiver Station Base Transceiver Station Perawang with Perawang Students who have a distance of 5 km Receive Signal level of -32.4 dBm made in accordance with a budget link provided operator Hutchison 3 Indonesia is -30 dBm to -40 dBm.

Karekteristik Hidroksiapatit (HA) Dari Limbah Tulang Sapi dengan Metode Mekanik-Termal Ikhsan - -; Gunawarman - -; Yuli Yetri -
Jurnal Ilmiah Poli Rekayasa Vol 13, No 2 (2018)
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

The availability of bovine bone waste is very abundant and has not been utilized optimally as raw material for the manufacture of Hydroxyapatit (HA).HA is widely used in the field of orthopedics and dentistry, because it is biocompatible and bioactive, bovine bone wastes are synthesized by thermal-mechanical methods to obtain HA. The first stage of bovine bone preparation is done to obtain HA from bovine bone waste by mechanical collision to obtain bone meal smooth. The second stage of calcination at a temperature of 800oC. The results of microstructural observation with SEM obtained granules obtained almost evenly smoothness with average size 42.25 μm in span (irregular spherical (30.29-136.4μm) and chemical composition with XRF obtained by Ca / P ratio of 1.61, close to the optimal value of HA of 1.67.

Kontrol Kecepatan Motor Penggerak Feeder Pada Mesin Pencacah Jerami Untuk Sistem Reaktor Biogas Berbahan Baku Jerami Kartika - -; Roswaldi Sk -; Amril - -; Sandra - -
Jurnal Ilmiah Poli Rekayasa Vol 13, No 1 (2017)
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

The production of one ton of rice straw will produce 250 kg of dry hay (Isni, 2011). A sizeable amount, straw as one of the ingredients that are very effectively used as raw material for biogas. Straw into biogas conversion value reaches 250-350 liter / kg dry weight (Arati, 2009). For a perfect straw metabolism, staw should be cut first. Enumeration is done manually is less efficient because the enumeration is done by using a knife to cut hay will produce a piece of straw that are not uniform. Good hay cutting measure is about 2-5 cm. If the straw enumeration is done by machine, then it takes the feeder to the cutting machine tool that can feed the straw so that the resulting size of 2-5 cm. To make the necessary feeder, conveyor, DC motors, magnetic clutch and infrared sensors. Conveyor serves as a carrier of straw, DC motors as actuators, magnetic clutch as conveyor control and infrared sensor as a measure of pieces of straw. After testing, show that it works and works well.

Monitoring Kebocoran Pada Pipa Menggunakan SMS Gateway Hidra Amnur -; Defni - -; Fatma Adilla -
Jurnal Ilmiah Poli Rekayasa Vol 10, No 2 (2015)
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Monitoring is the most important thing in a system. Particularly large systems such as the installation of water pipes. Water pipes are installed in various places will be very troublesome to monitor the leak. With the SMS Gateway System, the real data of the sensor water pipes will be displayed and can be accessed on a website. SMS Gateway is an SMS -based system that can be developed in various fields by utilizing the PHP programming language. Through the development of information technology, creates a system that is interconnected to obtain information in real and fast

Kajian Manfaat Senyawa Aktif dalam Ekstrak Kulit Buah Coklat (Theobroma Cacao ) Sukatik - -; Yuli Yetri -; Rahmi Hidayati -; Roni Tri Putra; Ratih Paramitha -
Jurnal Ilmiah Poli Rekayasa Vol 15, No 2 (2020): -
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Identification of active compounds in cacao pod rind has been done. Cacao pod rind contained active compound alkaloid, theobromine (3,7-dimethylxanthine). Cacao pod rind extract contained some other active compounds mixed flavonoid or condensed tannin such as anthocyanin, anthocyanidin, catechin, epicatechin, epigallocatechin, and leucoanthocyanidin. Cacao pod rind was extracted by maceration using methanol 70% and fractionated with hexane and ethyl acetate to obtain polar extracts. This study used an experimental method that was analyzed descriptively using Gas Chromatography-Mass Spectrometry (GC-MS) and Liquid Chromatography-Mass Spectrometry (LC-MS). Phytochemical screening test showed cocoa pod rind extracts contained alkaloids, flavonoids, tannins, terpenoids, and saponins. GC-MS analysis showed that cacao pod rind extracts contained 24 compounds. Polar extracts analysis with LC-MS obtained 10 compounds contained hydroxy groups, which can be used as corrosion inhibitors on metal. The result of this study showed that cocoa pod rind has potential as corrosion inhibitor. It also has potential as an anti-bacterial and antioxidant.

Pelabelan 0-Anti Ajaib dan 2-Anti Ajaib untuk Graf Tangga L Quinoza Guvil -; Roni Tri Putra
Jurnal Ilmiah Poli Rekayasa Vol 12, No 1 (2016)
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

For a connected graph and a subset of . For a vertex the distance betwen and is . For an ordered k-partition of , the representation of with respect to is The k-partition is a resolving partition if are distinct for every The minimum k for which there is a resolving partition of is the partition dimension of In this paper will shown resolving partition of connected graph order where is a bipartite graph. Then it is shown dimension partition of bipartite graph, are pd(Kst)=n-1

Pembuatan Alat Pengadukan Pupuk Kompos Berbasiskan Mikrokontroler Roza Susanti -
Jurnal Ilmiah Poli Rekayasa Vol 9, No 2 (2014)
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

In fabrication of compos mixing machine based on microcontroller, an AC motor 1 phase used to rotate the container and it will help the farmer work in stirring and mixing compos material. In order to display the process, a LCD is use in this fabrication.The design of this machine is divided into two categories, hardware design and software design. The hardware consist of an AVRATmega 8535 microcontroller minimum system , a LCD, Keypad, an AC Motor 1 phase, a Capacitor, and a relay. In the order hand for software design, a Code vision-AVR program language as the program application. The data analysis techniques are conducted by testing the machine performs. Not only by measuring operating voltages, but also testing the microcontroller with a program application.This machine is based on microcontroller AVRATmega8535 and using C language in programming. In order to display the mixing output, time setting is displayed on LCD. The optimum result started from the first 10 seconds ON condition and the second of 10 seconds ON condition should have a 30 seconds time off.

Peningkatan Nilai CBR Tanah Dasar (Sub Grade) dengan Penambahan Kapur dan Abu Sekam Padi Liliwarti - -
Jurnal Ilmiah Poli Rekayasa Vol 14, No 2 (2019): -
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

The subgrade is very important on road construction, because its functions for support the traffic loads. The subgrade is not able to bearing capacity the traffic load , can cause damage such as cracks, settlement,and deformation on the flexible pavement or rigid pavement. to solve in this problems, it is necessary to improve the mechanical properties of subgrade for increasing soil bearing capacity and reducing the swelling potential. The Sicincin ring road - Lubuk Alung, Padang Pariaman district which has deformed, settlement and cracks on the road pavement, caused by poor bearing capacity of the subgrade. To solve these problems, it is necessary to have the soil improvements (stabilization) for subgrade In this paper soil stabilization is done by mixing soil with lime and rice husk ash (variations in lime content of 5%, 8%, 11%, 14% and 17%) and rice husk ash (constant 2.5%) .The compaction test and CBR test is carried for each variation. The results in this study obtained the most optimal percentage of lime + rice husk ash is 11%, CBR design is 25%, and swelling value of 0.13%. CBR value of subgrade without lime and rice husk ash obtained CBR = 2.3%. So that there is a significantly increase in CBR value if using lime and rice husk ash as stabilization material for subgrade. These results can be used by experts to choose effective stabilization methods.

Perancangan Sistem e-Library Berbasis Web Jurusan Teknik Elektro Politeknik Negeri Padang Nasrul - -
Jurnal Ilmiah Poli Rekayasa Vol 13, No 1 (2017)
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Data communication technology allows the building of a network of computers with online applications. With the Padang State Polytechnic library system that still uses a manual system in the form of books and cards – cards that contain data – data book is considered not efficient anymore, so it takes a library of WEB - based information systems. With the utilization of internet technology in tended for delivery and the need for rapid information retrieval, facilitate student and informed the user in the title of books desired, assist the Polytechnic library Country Meadow in logging the books, because of the internet as a very broad network is an effective and efficient means for this application.

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Sumatera barat

INDONESIA