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Jurnal Nasional Teknologi Terapan

jntt
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Published by Universitas Gadjah Mada

ISSN : 26139235 EISSN : 26155877 DOI : -

Core Subject : Science, Agriculture, Engineering,

Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering

Jurnal Nasional Teknologi Terapan is a six-monthly open access journal which publishes research papers and critical review papers in Bahasa Indonesia only. JNTT covers research findings in the aspect of applied sciences, such as agroindustry, veterinary, forest management, civil engineering, electrical engineering, geomatics engineering,electrical engineering, remote sensing and geographic information system.

Arjuna Subject : Teknik (semua kategori) - Tenik Industri dan Manufaktur

Articles 6 Documents

Search results for , issue "Vol 3, No 1 (2019): JULI" : 6 Documents clear

Analisis Pengaruh Gempa Tektonik 10 Juli 2013 Terhadap Perubahan Koordinat Stasiun Pantau Segmen Mentawai Ulinnuha, Hilmiyati; Sunantyo, Aris; Widjajanti, Nurrohmat
Jurnal Nasional Teknologi Terapan (JNTT) Vol 3, No 1 (2019): JULI
Publisher : Penelitian dan Pengabdian Kepada Masyarakat Sekolah Vokasi Universitas Gadjah Mada

Mentawai Segment is located in Mentawai Islands, Sumatra, Indonesia. This segment is a subduction zone between Indo-Australian plate and Eurasian plate. This subduction zone can lead to high potential of tectonic earthquake in Mentawai Segment. The high potential of tectonic earthquake has negative impact for the community, so it is necessary to monitor the risk of tectonic earthquake in Mentawai Segment. This monitoring can be done by using GPS data of monitoring station that spread in Mentawai Segment. Therefore, this research aims to analyze the effect of tectonic earthquake on the coordinate change of Mentawai Segment, so that it can reduce the risk of negative impact of tectonic earthquake in Mentawai Segment. This research use observation data of 10 continuous GPS monitoring station (Sumatran GPS Data Array / SuGAr) in Mentawai Segment. Day of observation data was day of year (doy) at the time of tectonic earthquake occurence on July 10, 2013. Data processing used GAMIT / GLOBK software. The results of this research indicate that the tectonic earthquake (July 10, 2013) affected coordinates changes of the SuGAr station significantly two hours after the tectonic earthquake occurred.

Monitoring Perubahan Pola Alur Sungai Menggunakan Citra Satelit Resolusi Spasial Menengah Berbasis Spectral Classification Agung Kurniawan
Jurnal Nasional Teknologi Terapan (JNTT) Vol 3, No 1 (2019): JULI
Publisher : Penelitian dan Pengabdian Kepada Masyarakat Sekolah Vokasi Universitas Gadjah Mada

The development of remote sensing technology allows humans to acquire and process data remotely and temporally. Changes in the flow of the Progo river from the last few years are significant, this can be caused by natural factors and human factors. The influence of the intensity of flow and the level of sedimentation in the Progo river causes a massive flow pattern change in the Progo river body. The data used in this research is Medium Spatial Resolution Satellite Imagery, Landsat 5 satellite imagery acquired in 1995 and Landsat 8 acquired in 2017. Monitoring of changes in river flow pattern is generally done by using the method of terrestrial or conventional measurement, which takes a long time, for that the use of methods and remote sensing data can be used to save time. The method used is multispectral classification approach with maximum likelihood algorithm. The results of extraction using digital classification method (maximum likelihood) resulted in the appearance of flow pattern quickly and representative, so this method is suitable for the purpose of rapid detection of changes in flow pattern. The results obtained from the extraction of the Progo river flow pattern show an intricate river flow pattern with many river rubbers on the image appearance of 1995, whereas in the image extraction results in 2017 the river banks and turns do not look dominant, it shows that erosion and sedimentation activities continue to occur massively.

Evaluasi Kualitas Susu Kambing Etawa Yang Dikoleksi dari Peternakan Berskala Kecil Di Wilayah Samigaluh, Kulon Progo Nur Ika Prihanani; Risa Ummami; Naela Wanda Yusria Dalimunthe; Muhammad Rosyid Ridlo
Jurnal Nasional Teknologi Terapan (JNTT) Vol 3, No 1 (2019): JULI
Publisher : Penelitian dan Pengabdian Kepada Masyarakat Sekolah Vokasi Universitas Gadjah Mada

Peranakan Etawa (PE) Goat is a type of superior goat that is very potential to be maintained as a dairy goat. Food safety guarantee of animal origin becomes very important in order to prevent and spread disease from animal to human. So it takes an effort in terms of quality control of food of animal origin, especially goat's milk. This study aims to determine the quality of PE goat milk which is maintained by farmers in small farms. The study was conducted on 15 samples of goat milk collected in the region of Samigaluh, Kulon Progo. The research used a method of testing the quality of milk in the laboratory that includes testing the physical condition of milk and milk composition. Testing the physical condition of milk consists of testing of cleanliness, color, odor, and taste. Testing of milk composition consist of degree of acid, reductase, fat content, calculation of total bacteria by Total Plate Count (TPC) method. The data obtained are then analyzed descriptively. The results showed milk samples were clean, yellowish, typical odor of fresh milk, and had a slightly sweet taste. Mean of acid degree 7,1°SH, mean of reductase rate 2 hour, mean of fat content 4,53% and mean total bacteria 2,8 x 105 CFU ml. These results indicate that the quality of goat milk included in the category worth to be consumed with sufficient quality. The quality of goat's milk is influenced by the type of feed given and the nutrient composition in the feed type.

Interpretasi Electrical Resistivity Tomography (ERT) untuk Pendugaan Air Tanah Dangkal pada Formasi Gunungapi Muda Erik Febriarta; Suswanti Suswanti; Sembodo Noviandaru
Jurnal Nasional Teknologi Terapan (JNTT) Vol 3, No 1 (2019): JULI
Publisher : Penelitian dan Pengabdian Kepada Masyarakat Sekolah Vokasi Universitas Gadjah Mada

Aquifers or groundwater saturated areas in the slope morphology of Merapi volcano are relatively thin due to massive rock outcrops above the surface. Because these massive igneous rocks dominate the local geological appearance, the groundwater potential on the upper foot slope is relatively lower than the lower one that has thicker aquifer materials (sand). This study was designed to investigate the thickness of potential groundwater and identify the aquifer materials by geoelectrical methods using the Electrical Resistivity Tomography (ERT) configuration. ERT has several advantages, including its ability to present multi-log lithology vertically and produce a more detailed surface appearance. In this study, rock resistivity values were measured with a survey line stretching across 250 m. The geoelectrical imaging produced actual values (potential values) of the rock resistivities through the matching curve and inversion techniques. Afterward, the actual resistivities were matched with the standard electrical resistivity of rocks and their respective hydrogeological characteristics, i.e., the capacity to store and transmit water. Interpretation on rock resistivities detected groundwater at a depth of 0.5-12 m in Manisrenggo. This shallow aquifer has an impermeable layer composed of igneous rocks, which are massive breccia, that lie in one layer of sand. According to the Groundwater Basin Map, these rock formations are part of the Karanganyar-Boyolali Groundwater Basin. The shallow aquifers and hydraulic gradient lead to the emergence of seeps or flushes on the soil surface.

Kajian Transformasi Indeks Vegetasi Citra Satelit Sentinel-2A untuk Estimasi Produksi Daun Kayu Putih Menggunakan Linear Spectral Mixture Analysis Lilik Norvi Purhartanto; Projo Danoedoro; Pramaditya Wicaksono
Jurnal Nasional Teknologi Terapan (JNTT) Vol 3, No 1 (2019): JULI
Publisher : Penelitian dan Pengabdian Kepada Masyarakat Sekolah Vokasi Universitas Gadjah Mada

A forest plantation area of Melaleuca cajuputi at BDH Karangmojo, BKPH Yogyakarta are 2,325.20 ha. One of the efforts to keep its sustainability is to plan the target and realization of cajuputi leaf production considerwith forest condition. Advances in remote sensing technology can be an alternative in estimating the cajuputi leaf production on large areas with an efficient time and high accuracy and able to analyze the quality of cajuputi. This study aims to examine Sentinel-2A capabilities through a relationship model of some vegetation indices integrated with vegetative factors on the production to obtain estimates of leaf production, map and test the estimation model accuracy. The method used is to classify objects in pixels with Linear Spectral Mixture Analysis and build relationship between age, number of plants and vegetation index with cajuputi leaf production. The results showed that the unmixing method has 99,66% accuracy in classifying pixels into the fraction of cajuputi. MERIS Terrestrial Chlorophyll Index of unmixing cajuputi fraction simultaneously with age and number of plants has the highest correlation with value of r = 0,668 to the production and modeled in mapping the estimated cajuputi leaf production at the research location with Standard Error of Estimate is 0,183.

Analisis Efektivitas Mesin pada Divisi Pengalengan Jamur Di PT XYZ Menggunakan Metode Overall Equipment Effectiveness Aditya Haradito; Iman Sabarisman; Satria Bhirawa Anoraga
Jurnal Nasional Teknologi Terapan (JNTT) Vol 3, No 1 (2019): JULI
Publisher : Penelitian dan Pengabdian Kepada Masyarakat Sekolah Vokasi Universitas Gadjah Mada

PT XYZ is one of the food canning companies in Indonesia. Nowadays, many companies are looking up for the alternatives to increase the company revenue by making a continous improvement in every process. This study has three aims to be achieved. First, knowing the value of availability rate, performance rate, and quality rate. Second, to determine the major cause which affecting the effectiveness value of the production machine. Third, to obtain the alternatives improvement to increase the machine effectivity. Overall Equipment Effectiveness (OEE) is a method to determine the effectiveness level of equipment utilization. The OEE method is known as one of the program applications of Total Productive Maintenance (TPM). This study measures the value of OEE in the production line of mushroom canning within two months. The values of this study are, availability rate is 89.99%, performance rate is 65.13%, and quality rate is 99.76%. From those data, the obtained calculation value of OEE is 58.71%, it shows that it has not reach yet the best practice (85%) and need an improvement. The Losses in PT XYZ are breakdown losses, setup and adjustment losses, idle and minor stoppage losses, and defect losses. The alternatives improvement are tightening the maintenance schedule, as well as inspection before and after use on the machine. This maintenance is supported by a focus on the TPM pillar of self-improvement, which changes the workers’ mindset, to change the mindset of the workers there should be an education and training to improve the ability of workers.

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Contact Name
Viar Agastya Saputra

Contact Email
jntt.sv@ugm.ac.id

Phone
+6285729547161

Journal Mail Official
jntt.sv@ugm.ac.id

Editorial Address
Jl. Yacaranda Sekip Unit I, Caturtunggal, Depok, Sleman, Daerah Istimewa Yogyakarta

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Kab. sleman,

Daerah istimewa yogyakarta

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Viar Agastya Saputra

Contact Email jntt.sv@ugm.ac.id

Phone +6285729547161

Journal Mail Official jntt.sv@ugm.ac.id

Editorial Address Jl. Yacaranda Sekip Unit I, Caturtunggal, Depok, Sleman, Daerah Istimewa Yogyakarta

Location Kab. sleman, Daerah istimewa yogyakarta INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Viar Agastya Saputra

Contact Email
jntt.sv@ugm.ac.id

Phone
+6285729547161

Journal Mail Official
jntt.sv@ugm.ac.id

Editorial Address
Jl. Yacaranda Sekip Unit I, Caturtunggal, Depok, Sleman, Daerah Istimewa Yogyakarta

Location
Kab. sleman,

Daerah istimewa yogyakarta

INDONESIA