cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota cimahi,
Jawa barat
INDONESIA
Jurnal Teknik
Published by Universitas Jenderal Achmad Yani
ISSN : 14128810     EISSN : 25802615     DOI : -
Core Subject : Engineering,
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Industrial & Manufacturing Engineering Mechanical Engineering
Jurnal Teknik merupakan jurnal peer-reviewed dalam Bahasa Indonesia di bidang keteknikan yang terbit 2 kali dalam setahun. Terbit di bulan Mei dan November.
Arjuna Subject : -
Articles 475 Documents
 42   43   44   45   46 
Perbandingan Efektifitas Protective Coating, Silica Fume dan Semen Tipe II Terhadap Pengaruh Klorida dan Sulfat pada Beton Herdiansah, Yudi; Destianto, Anto; Sulaeman, Agus
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 22 No 2 (2023): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik
Publisher : Fakultas Teknik - Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55893/jt.vol22no2.508

Abstract

Concrete that is in a surrounding with high sulfate and chloride levels can affect durability of concrete. Numerous technologies that might be often used include: protecting coating, addition of silica fume to concrete mix, and type II cement. Consequently, the intention of this have a look at was to examine effectiveness of shielding coatings, the addition of silica fume to the concrete blend, and the usage of kind II cement to grow the sturdiness of concrete uncovered to chlorides and sulfates. The specimens were made in 4 variations; cement type I specimens without protection, cement type I specimens with coating, cement type I specimens with silica fume, and cement type II without protection. The specimens were immersed in a solution of chloride and sulfate for 14 days, 28 days, 42 days, and 56 days. The study was carried out by testing the compressive strength, chloride content, chloride infiltration, visual analysis, and change of length. The results showed that protective coating had resistance to chloride and sulfate, the addition of silica fume to cement type I provided resistance to chloride but did not to sulfate, while the use of cement type II provided resistance to sulfate but did not provide chloride.
Analisa Pengukuran Parameter Quality of Service dan Quality of Experience pada Layanan HbbTV Putri, RA Rizka Qori Yuliani; Ery Safrianti; Salpiana; Jesica Amanda Putri; Sucahyo Grianto; Aji Noor Hakim
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 22 No 2 (2023): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik
Publisher : Fakultas Teknik - Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55893/jt.vol22no2.523

Abstract

Hybrid Broadcast Broadband TV (HbbTV) is delivery standard for signaling, transmission, presentation of enhanced interactive television services and related applications, designed for use over broadcast networks and Internet. It is only standard that allows direct connection between linear and online content. It works on hybrid devices that include both broadcast and Internet connections. This standard will bring new dimension to services delivered through television programs (TV and Internet) and enhance consumer user experience by enabling innovative and interactive services over broadcast and broadband networks. improve. The HbbTV specification was developed by the HbbTV Association to effectively manage the rapidly increasing amount of content for today's consumers. HbbTV is a technology that combines traditional television broadcasts with Internet services and interactive applications. This research focuses on role of QoS and QoE in HbbTV implementations and measurement of parameters using Wireshark software that affect quality of service and user experience. The research method is experiment measuring QoS and QoE parameters. The QoS measurements were average throughput 47531,8bps, packet loss 4,9968%, delay 189.38ms, jitter 17700ms. We also conducted QoE measurement survey to collect user data to be collected. Data analysis revealed that 7.7% of consumer expectations of HbbTV users need to be improved.
Analisis Fluktuasi Total Electron Content (TEC) Akibat Gempa Palu dengan Formosat-3 / COSMIC Sari, Atika; Cahyadi, Mokhamad Nur
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 22 No 2 (2023): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik
Publisher : Fakultas Teknik - Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55893/jt.vol22no2.526

Abstract

Earthquakes are vibrations that occur as a result of plate shifts. When an earthquake occurs, it will cause three kinds of waves, and one of them is an acoustic wave that moves vertically and affects electrons that move freely in the ionosphere. This study aims to analyze Total Electron Content (TEC) fluctuations due to earthquakes using FORMOSAT-3 / COSMIC data. The method used is the analysis of the time and location of the occurrence of TEC fluctuations from the results of plotting the FORMOSAT-3 / COSMIC data against the time and location of the earthquake. The data used is netCDF data, which contains information on the TEC value and occultation time which on FORMOSAT-3 / COSMIC, the data was taken using the Global Positioning System Radio Occultation (GPSRO) technique. The results of the Palu earthquake on September 28, 2018 obtained 28 occultations with an anomaly time of 10 minutes after the earthquake and the distance to the epicenter was ± 3700 km.
Studi Pengaruh Konsentrasi Katalis ZnO untuk Degradasi Limbah Palm Oil Mill Effluent (POME) Menggunakan Teknologi Fotokatalitik Wahyudi, Farizky; Wibawa Hendra Saputera; Dwiwahju Sasongko; Hary Devianto
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 22 No 2 (2023): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik
Publisher : Fakultas Teknik - Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55893/jt.vol22no2.549

Abstract

Indonesia is among the world’s largest palm oil market countries leading to significant growth in the domestic palm oil industry. However, the increase in palm oil trading has also led to a rise in the production of waste known as Palm Oil Mill Effluent (POME). Currently, the majority of factories use open ponds for POME processing, but this method is considered ineffective for treating POME. To address this issue, researchers are exploring photocatalytic technology, which utilizes light energy (UV, visible, sunlight) to produce radical compounds that act as oxidizing agents for POME degradation. In this study, ZnO was employed as a catalyst. The XRD and UV-vis DRS characterizations confirmed that ZnO had a hexagonal wurtzite crystal structure with a band gap energy of 3,22 eV. The photocatalytic activity test results revealed that using 0.5 g/L ZnO catalyst proved to be efficient in degrading organic content in POME. The percentage of chemical oxygen demand (COD) degradation reached 22.85%, color degradation reached 48.53% and the reaction rate kinetics constant of COD degradation was at 2.6´10-3 min-1.
Sistem Pemantauan Kelembaban Tanah Jarak Jauh Berbasis LoRa Menggunakan Sensor pH dan Kelembaban Gani, Mina Naidah; Hepi Ludiyati; Rifa Hanifatunnisa; Eril Mozef; Rizqa Nur Ananti
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 22 No 2 (2023): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik
Publisher : Fakultas Teknik - Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55893/jt.vol22no2.564

Abstract

This study focuses on the pivotal role of water and soil in agriculture, emphasizing their significance for photosynthesis and as a planting medium, respectively. Maintaining uncontaminated soil is crucial for optimal crop growth. Remote monitoring of soil quality is facilitated by LoRa technology, with a microcontroller system employing sensors for soil moisture and pH. YL-69 moisture sensors exhibit an average error of 0.077%, with a range from 0% to 0.016%, while pH electrode probe sensors register an average error of 0.0288%, ranging from 0.034% to 0.021%. The monitoring data is transmitted through the LoRa network connected to ESP32. Field testing under Line-of-Sight (LOS) conditions at a maximum distance of 500 meters and Non-Line-of-Sight (NLOS) conditions up to 50 meters reveals that the gateway successfully detects RSSI values (-104 dBm to -64 dBm) and SNR values (-2dB to +10dB) within acceptable ranges. The average delay during data transmission between the node and the gateway is measured at 2.118 seconds. This research demonstrates the effectiveness of LoRa technology in remotely monitoring and transmitting crucial soil parameters, providing valuable insights for precision agriculture.
Hidrogenasi Hidrotermal Katalitik Asam Oleat dengan Produksi Hidrogen secara in-situ Menggunakan Katalis NiO/y-Al2O3 Nainggolan, Federiko Markus Lasardo; Tirto Prakoso; Meiti Pratiwi
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 22 No 2 (2023): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik
Publisher : Fakultas Teknik - Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55893/jt.vol22no2.580

Abstract

Hydrogenation reaction is one of the most important reactions for the oleochemical industry to convert unsaturated fatty acids into saturated fatty acids and their derivatives. The need for large amounts of hydrogen in hydrogenation reactions will be a problem in terms of hydrogen availability and economy. Catalytic hydrothermal technology offers several advantages including the ability to produce hydrogen in-situ. The focus of this research is to evaluate the effect of metal charge addition on the catalyst, the effect of tin addition on NiO/y-Al2O3 catalyst and the effect of glycerol addition as a source of H2 production in-situ on the hydrogenation conversion of oleic acid. The catalyst was prepared by dry impregnation method. XRD, XRF and BET characterization of the catalysts confirmed the presence of Ni and Sn metals on the catalysts. Hydrogenation conversion in the reaction without glycerol using NiO/y-Al2O3 catalyst at 300oC for 6 hours did not show significant changes with the addition of metal loading. However, the addition of Sn metal increased the selectivity of in-situ H2 production used to hydrogenate oleic acid with a hydrogenation conversion of 36%. The addition of glycerol to the reactants also increased the hydrogenation conversion compared to the reaction without glycerol.
Pemodelan Proses dan Evaluasi Ekonomi Produksi Bio-Oil dari Limbah Tandan Kosong Kelapa Sawit Fanany, Muhammad Rifki; Septhian Marno; Tirto Prakoso; Aqsha Aqsha; Astri Nur Istyami; Meiti Pratiwi; Indarto, Antonius
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 22 No 2 (2023): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik
Publisher : Fakultas Teknik - Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55893/jt.vol22no2.587

Abstract

Oil palm empty fruit bunches (OPEFB) are solid waste which is the residue from processing palm oil into crude palm oil (CPO). The high number of OPEFB produced requires proper handling to minimize the negative impact on the surrounding environment. One of the solutions to deal with this is to process OPEFB into bio-oil using fast pyrolysis technology. Before applying the process in the real world, it is necessary to do an economic evaluation first to find out whether the process can be economically profitable. This study aims to carry out an economic evaluation of the bio-oil production process made from OPEFB using fast pyrolysis technology. Aspen Plus was used in this study to carry out process modeling, while the economic evaluation was based on several literatures such as previous books and journals. Based on the results of the economic evaluation, the total capital cost (TCC) required to build this facility is USD 1,152,686 with an operating expenditure (OpEx) of USD 168,107. Then, from the economic indicators in the form of payback period (PBP) and internal rate of return (IRR), this facility takes 4 years to reach PBP with an IRR of 22%.
Reliability Index Assessment-Section Technique pada Distribusi Listrik Penyulang Suci Menggunakan Software ETAP Haz, Fauzia; Arya Mustopa; Giri Angga Setia; Dede Furqon; Atik Charisma; M. Reza Hidayat
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 23 No 1 (2024): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik
Publisher : Fakultas Teknik - Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55893/jt.vol23no1.528

Abstract

Problems that often occur with electricity distribution network quality, continuity and availability services consumers. Study aims evaluate reliability of the 20 kV medium-voltage electricity distribution system at the Suci ULP Garut Kota feeder, where 2021 Suci feeder experienced 14 disturbances duration 791 minutes (13.1 hours), including a medium-voltage overhead line that broke 2 Phase. Determining the reliability index value electricity distribution system of the Kudus ULP Garut City feeder, mathematical calculations were carried out using RIA-section technique predetermined formula and simulated using ETAP software with study case reliability assessment. Based on the results of the study, improvement was made that the reliability value feeder was stable. Repairs were carried out 2 times, first repair, 2 fuse cutouts were installed and 4 transformers were moved, while the second repair was to divide the Suci feeder into 2 parts, namely the western Suci feeder and the eastern Suci feeder. So making these improvements the reliability index Suci feeder becomes stable and meets what has been SPLN 68-2: 1986, which is below SAIFI 3.3 times/customer/year and SAIDI 21.9 hours/customer/year.
Pembangunan Model Pendeteksi Risiko Preeklamsia pada Ibu Hamil dengan Menggunakan Metode Data Mining Ilham, Muhammad; Adnyani, Ni Luh Saddhwi Saraswati; Suryadi, Kadarsah
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 23 No 1 (2024): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik
Publisher : Fakultas Teknik - Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55893/jt.vol23no1.543

Abstract

Preeclampsia is a pregnancy complication indicated by an increase in blood pressure that occurs after 20 weeks of gestation and the presence of protein in the urine. If not treated quickly, preeclampsia can lead to maternal and fetal death. Therefore, a method that can help health workers to provide early detection of preeclampsia is needed. One method that can be used is data mining. This study was conducted with the aim of developing a model based on data mining methods that can be used as a tool to identify patients with preeclampsia and also to identify associated risk factors. This study was conducted using six data mining classification algorithms on 109 obstetric clinic patient data at the Jakarta Pondok Kopi Islamic Hospital (RSIJPK). The input features used as preeclampsia detection attributes were obtained based on the results of a literature study and consultations with obstetricians. Based on the results of the model evaluation, logistic regression has the best performance in detecting preeclampsia with accuracy value of 98% and precision level of 100%. In addition, this study also designed an application prototype that can be used by health workers to quickly detect the risk of preeclampsia in pregnant women.
Model Efisiensi Arus pada Elektrolisis Serbuk Tembaga Menggunakan Metode Perancangan Percobaan Faktorial Desain 2K Gunawan, R. Mohamad Fajar; Soleh Wahyudi; Andrie Harmaji; Diana Kamaliyah Ichsan; Gigih Safardwiyansyah; Naufal Dhiya Ulhaq
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 23 No 1 (2024): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik
Publisher : Fakultas Teknik - Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55893/jt.vol23no1.552

Abstract

This paper presents the results of developing a current efficiency model for copper powder electrolysis and analyzes the factors that most influence current efficiency using a 2K factorial experimental design. The three independent variables are copper ion (Cu) concentration, current density, and electrolysis time. Copper powder electrolysis experiments were conducted using a pure copper plate anode (99.88% Cu) and a 316L stainless steel cathode. Current efficiency is calculated based on data on the weight of the copper powder produced. Copper powder characterization uses a Scanning Electron Microscope (SEM) to determine the morphology and size distribution of the powder, X-ray Diffraction (XRD) to identify powder phases/compounds, Energy Dispersive X-ray Spectroscopy (EDX) to analyze the elemental composition and Particle Size Analyzer ( PSA) to determine the powder particle size and distribution. The prediction model obtains the highest current efficiency at 96%. The resulting copper powder has a dendritic structure morphology with an average particle size of 114.9 µm. It comprises cuprite (Cu2O) and copper (Cu) with a composition of 88.17% Cu and 11.83% O.

Page 44 of 48 | Total Record : 475

 42   43   44   45   46 

Filter by Year

2002 2025


Reset
Filter By Issues
All Issue Vol 24 No 2 (2025): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 24 No 1 (2025): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 23 No 2 (2024): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 23 No 1 (2024): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 22 No 2 (2023): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 22 No 1 (2023): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 21 No 2 (2022): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 21 No 1 (2022): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 20 No 2 (2021): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 20 No 1 (2021): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 19 No 2 (2020): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 19 No 1 (2020): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 18 No 2 (2019): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 18 No 1 (2019): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 18 No 1 (2019): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 17 No 2 (2018): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 17 No 2 (2018): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 17 No 1 (2018): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 17 No 1 (2018): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 16 No 2 (2017): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 16 No 2 (2017): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 11 No 2 (2012): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 11 No 1 (2012): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 10 No 2 (2011): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 10 No 1 (2011): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 9 No 2 (2010): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 9 No 1 (2010): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 8 No 2 (2009): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 8 No 1 (2009): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 7 No 2 (2008): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 7 No 1 (2008): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 6 No 2 (2007): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 6 No 1 (2007): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 5 No 2 (2006): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 5 No 1 (2006): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 4 No 1 (2005): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 3 No 2 (2004): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 3 No 1 (2004): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 2 No 2 (2003): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 2 No 1 (2003): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 1 No 2 (2002): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik Vol 1 No 1 (2002): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik More Issue