cover
Contact Name
Adi Kusmayadi
Contact Email
adikusmayadi@polindra.ac.id
Phone
-
Journal Mail Official
jtt@polindra.ac.id
Editorial Address
-
Location
Kab. indramayu,
Jawa barat
INDONESIA
Jurnal Teknologi Terapan
ISSN : 24773506     EISSN : 25491938     DOI : -
JTT memuat naskah hasil-hasil penelitian di bidang teknologi terapan.
Articles 292 Documents
Cover JTT Vol 4 No 1 Vol 4 No 1, JTT
Jurnal Teknologi Terapan Vol 4, No 1 (2018): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1480.842 KB) | DOI: 10.31884/jtt.v4i1.107

Abstract

Cover JTT Vol 4 No 1
EFEK GETARAN PADA PENGELASAN ALUMINUM 5083 H112 MENGGUNAKAN PROSES LAS GAS METAL ARC WELDING (GMAW) TERHADAP POROSITAS Rohmat, Imam Khoirul; Winarto, Winarto
Jurnal Teknologi Terapan Vol 4, No 2 (2018): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (871.661 KB) | DOI: 10.31884/jtt.v4i2.126

Abstract

5083 series aluminum magnesium is widely used for marine industrial. It is caused aluminum has high specific strength and good corrosion resistance. However, at process of welding many of porosity occured in the aluminum and it decrease the mechanical properties especially in HAZ (Heat Affected Zone). At casting process of aluminum, porosity could reduce by giving vibration. So, this method is tried to be applicated for welding of aluminum due to welding is a miniature of casting. Tensile test, hardness test, metallography test, and image analysis are technique to characterize the effect. As a result, vibration is not really affected the amount of porosity that occurred. But for hardness it is influenced especially for ER 4043 filler where the vibrated specimens have a higher hardness. The higher average result of tensile test for ER 5356 filler obtained at unvibrated specimens with the value is 231 MPa and for ER 4043 filler the higher average result obtained at vibrated specimen, the value is 226 MPa.
RANCANG BANGUN ALAT BANTU PERAKITAN DAN PENGELASAN KURSI LABORATORIUM (LAB STOOL) Sunding, Alang; Ridhani, Ulia; Burhan, Imron
Jurnal Teknologi Terapan Vol 4, No 2 (2018): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (593.972 KB) | DOI: 10.31884/jtt.v4i2.147

Abstract

The quality of mass produced lab stools are determined based on the similarity of shape andsize of the labs stools produced. Assembly work is done by two technicians for 55 minuteswithout using assembly tools (Fixture). Based on this data, it can be inferred that in termsof working time assembly  process is considered too long or inefficient in terms of time.Based on the amount of labor it is still not efficient or the productivity is still low, so theremust be innovations made to speed up the assembly time. in addition to low productivity,without assembly tools and welding the product is not similiar because there is a change ofshape  after  welding  process.  It  means  the  quality  of  the  product  is  not  good. Businesscompetition in the field of metal furniture manufacture is growing so that producers have tothink of methods to improve productivity, quality and speed up production time. To increaseproductivity,  it  is  necessary  to  assemble  and  fix  the  parts  to  be  assembled to  eliminateunwanted  movement  due  to  the  welding  distortion. The  use  of  fixtures  in  the  assemblyprocess can be done by one person with an average processing time of 25 minutes.
Optimasi Pemilihan Barang Dagangan bagi Pedagang Keliling dengan Algoritma Genetika Iryanto, Iryanto; Ismantohadi, Eka
Jurnal Teknologi Terapan Vol 3, No 1 (2017): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (422.723 KB) | DOI: 10.31884/jtt.v3i1.2

Abstract

Existence of constraints increases difficulty in choosing the right goods for a seller. Indeed, the seller wants to optimize the profit gained. Due to limitation of capital and maximum capacity, the seller needs a certain strategy to do the selection. Moreover the fact that each goods has its own probability to sell makes the problem becomes more complex. In this paper, the problem is solved using genetic algorithm. The result of simulation is in a good agreement with analytical solution. The simulation of N-goods selection is also given in the paper. 
ANALISA DISTRIBUSI KAPASITAS ALIRAN FLUIDA DI DAERAH PERCABANGAN PADA SISTEM PERPIPAAN Eswanto, Eswanto; Syahputra, Dian
Jurnal Teknologi Terapan Vol 3, No 1 (2017): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (392.702 KB) | DOI: 10.31884/jtt.v3i1.7

Abstract

In the industrialized world are required to review hearts always improving performance boost produced by industry, then the findings from the on lead or not separated from the machine using the tools the process piping systems hearts products in produced. Many of piping installation taken in connection the prayers only serves to review an distribution diverting fluid flow, split flow Being branched accordance desired. Singer study aims to determine the effect connectivity review Tee Against pressure losses due to the separation coefficient fluid flow The causes decrease in performance from the system. Operating singer research conducted experiments using a fluid air. Research data consist of variables differences free and bound variables. Data retrieval is done on with varying the diameter of the pipe branching That is ½ inch, ¾ inch and 1 inch. Research shows that more big diameter pipes which are used then branching coefficient Tee losses small increasingly is 0.2703 m, 0.17879 m and 0.0753 m, so that the debit value increase branching out Namely 16.8 liter / min, 17, 2 liters / min and 17.4 liters / min. The high Reynolds number variation on lead with diameter test sections, resulting in decreased total loss coefficient, (Re) 43 823, 39 985, 32719.8 And Htot 6.1667, 17.2, 17437. The increase in the Reynolds number (Re) will affect against losses pressure (h) at every connection.
Pengaturan Lampu Lalu Lintas dengan Simulasi Monte Carlo Studi Kasus : Perempatan Daerah Dago � Bandung Iryanto, Iryanto; Andiwijayakusuma, Dinan
Jurnal Teknologi Terapan Vol 2, No 2 (2016): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v2i2.15

Abstract

One of the areas that often become a source of traffic jam is road intersection. So it will be crucial to manage the intersection. Every intersection in main road is common to have traffic light and every cycle of the lamp, red, green and orange, will influence the traffic. The traffic cycle will have significant role to decrease or increase effects of the problem. Inappropriate regulation for the intersection can cause traffic jam or a heavy traffic jam in the road. Sometimes every intersection needs different rule based on the traffic condition. Therefore is truly needed to manage the traffic light in every intersection. With the simulation we can know whether the rule for the traffic light has appropriated to the intersection's traffic condition. If the rule is not optimal yet, we can change the rule with the optimal one. In the research, two methods are used, using coupling parameter and without coupling parameter. Average of vehicle Arrival in each intersection is used as coupling parameter. As its result, using coupling parameter is better than without using coupling parameter.
Kekerasan Material Pasangan Elektroda (Cu) dan Lembaran plat (Fe) Pra Proses Spot Welding Sifa, Agus; Endramawan, Tito
Jurnal Teknologi Terapan Vol 2, No 1 (2016): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v2i1.21

Abstract

Las titik (spot welding) termasuk las tahanan listrik. Jenis ini merupakan metode yang paling banyak digunakan dan paling sederhana. Hasil proses pengelasan spot welding perlu diketahui secara detail karena akan berdampak pada kekuatan geser dan kekerasan hasil pengelasan, secara mekanik pasangan elektroda dan lembaran plat perlu diperhatikan tekanan elektroda pada lembaran plat, hal ini perlu reference sifat fisik kekerasan permukaan elektroda terhadap lembaran plat dan sebagai acuan awal pada pemilihan material pasangan elektroda dan lembaran plat dengan ketebalan 0,8 mm, maka perlu diketahui komposisi elektroda dan lembaran plat. Hasil uji pasangan material elektroda (Cu) dan lembaran plat (Fe), setelah dilakukan eksperimen uji spectrometric diperoleh bahwa elektroda memiliki kandungan Cu yang balance dan Lembaran plat memiliki kandungan Fe yang mendominasi namun memiliki Carbon kurang dari 0,25%, maka hal tersebut lembaran plat memiliki kategori karbon rendah, dan dari hasil uji kekerasan menunjukkan Elektroda memiliki nilai kekasaran 130 HV, hal ini menunjukkan bahwa elektroda kategori class 2 [10] dan lembaran plat memiliki kekasaran 128 HV, kecenderungan nilai kekasaran material elektroda lebih besar dari lembaran plat.
Pengembangan Sistem Administrasi Surat Masuk dan Keluar Berbasis Desktop dan Mobile (Studi Kasus Politeknik Negeri Cilacap) Riezkiadi, Wily; Wahyu Rahadi, Nur; Purwanto, Riyadi
Jurnal Teknologi Terapan Vol 2, No 1 (2016): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v2i1.26

Abstract

Information technology has a significant role in the education field. One of the critical roles of information technology is in the form of managing the incoming and outgoing mails. State Polytechnic of Cilacap as a higher education institution feels this role. In this research, the author intends to develop the information systems of the incoming and outgoing mails which is accessible for mobile. The development of this information system implements the waterfall process model. The result of the user testing showed that 75% of the users responded it as excellent, 17% of the users responded it as good, and the rest responded it as enought.
Pemanfaatan Teknologi QR Code Dalam Pengembangan Sistem Pendaftaran Calon Mahasiwa Baru di Universitas Islam Riau Gunawan, Hendra
Jurnal Teknologi Terapan Vol 1, No 1 (2015): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v1i1.35

Abstract

Pendaftaran mahasiswa baru merupakan proses administrasi yang terjadi disetiap perguruan tinggi. Proses pendaftaran calon mahasiswa di Universitas Islam Riau dilakukan dengan cara pengisian kertas formulir oleh calon mahasiswa, kemudian data tersebut diinputkan kembali oleh panitia menggunakan komputer secara offline. Kesalahan penginputan ulang data calon mahasiswa oleh panitia PMB sering terjadi. Oleh karena itu, dibangun sistem yang memanfaatkan teknologi QR Code yang diharapkan mengurangi resiko terjadinya kesalahan entri data dan efisiensi dalam mengurangi spam pada form pendaftaran online.
PENERAPAN DIGITAL WATERMARK SEBAGAI VALIDASI KEABSAHAN GAMBAR DIGITAL DENGAN SKEMA BLIND WATERMARK Suheryadi, Adi
Jurnal Teknologi Terapan Vol 3, No 2 (2017): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (543.783 KB) | DOI: 10.31884/jtt.v3i2.54

Abstract

Digital watermarking is an important field of technological development that has now grown in the digital era. Digital era encourage the spread digital images on internet by the websites with a large scale. On the other hand, digital images are objects that are very easy to change or manipulate, and even copied irresponsibly. Meanwhile it is very difficult to prove the image has been changed by existing equipment at this time, and it is difficult to prove its ownership. This is an important issue, when the image is one of the evidences for legal cases, news reporting and medical filing, where the image must be ensured that the digital image is not subject to change or manipulation. In this paper, we present the application of digital watermarking to authentication and ownership validation of digital image so the image can be ascertained its validity. This research applies blind watermark scheme by using secret key that inserted at least-significant bits (LSB) of host image therefore the watermark is invisible watermark. The result of watermarked image has a small decrease in quality with the mean value of PSNR and MSE about 34.08 and 14.62.

Page 2 of 30 | Total Record : 292