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JURNAL TEKNOLOGI TECHNOSCIENTIA
Published by Institut Teknologi Nasional Yogyakarta
ISSN : 19798415     EISSN : 27148025     DOI : https://doi.org/10.34151/technoscientia.v8i2.161
Core Subject : Science, Engineering,
Earth & Planetary Sciences Engineering
JURNAL TEKNOLOGI TECHNOSCIENTIA dengan ISSN: 1979-8415 dan E-ISSN: 2714-8025 merupakan jurnal ilmiah yang diterbitkan LPPM Institut Sains & Teknologi AKPRIND Yogyakarta sebagai wahana publikasi karya ilmiah/penelitian di bidang teknologi atau rekayasa meliputi bidang teknik kimia, teknik industri, teknik mesin, teknik elektro, teknik informatika, teknik geologi, dan teknik lingkungan, terbit dua kali setahun pada setiap bulan Februari dan Agustus. Setiap naskah yang dikirim akan dilakukan review secara tertutup. Hasil review naskah meliputi: DITOLAK atau DITERIMA DENGAN PERBAIKAN atau DITERIMA. Setiap naskah yang dinyatakan DIITERIMA dan DITERBITKAN dikenakan biaya proses dan cetak sebesar Rp. 250.000,- (di luar biaya pengiriman) dikirimkan via transfer ke: Bank Mandiri Cabang Yogyakarta No.: 137-00-1255210-1 an.: Prof. Dr. Ir. Sudarsono, M.T.
Arjuna Subject : Energi (semua kategori) - Energi (Lain-Lain)
Articles 534 Documents
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PENGARUH ARUS LALU LINTAS TERHADAP PANJANG ANTREAN MENGGUNAKAN REGRESI LINEAR Ridayati -
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 9 No 1 Agustus 2016
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v9i1.151

Abstract

Poor traffic arrangements will cause congestion and accidents that could endanger human life, evenmore to the increasing of Traffic in Yogyakarta. The aims of this paper are: first, to identify the level of service provided by the three signalized intersections “Jogja Phone” Yogyakarta at the present time. Furthermore, the result of level of service analysis is low in F level. By re reffing the cycle time the level service is increasing to B. Second, the result used SPSS had known that there was a significantly influence between green ratio, degree of saturation, traffict flow, road capacitysimul-taneously with long queue.
PENGUJIAN TEGANGAN TEMBUS PADA ISOLASI RUBBER DALAM RENDAMAN MINYAK Slamet Hani
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 9 No 1 Agustus 2016
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v9i1.152

Abstract

Insulation materials used to secure the power lines must be guaranteed in advance to endure, and perform as expecled. Insulation materials fatal failure in the operation of electric power, as it will cause the cessation of service.Those problems be a very interesting experiment, in this study will be carried out tests on the insulation tape made from rubber. Tests will be carried out in open air conditions and immersed in transformer oil. The testing focused on aspects of the thickness of the specimen.After testing that the test results of high voltage states, in the open air breakdown voltage greater because of the thickness affects the breakdown voltage. And when soaked breakdown voltage value decreases due to the ugly rubber chemical properties of oil resistance and solvent resistance.Insulating tape Scotch ™ 130C Linerless Rubber Splicing Tape 3M production has a breakdown voltage of 22 888 V in the open air with a thickness of 0.762 mm and 25 833 V transformer oil in a bath with a thickness of 0.762 mm for 20 minutes immersion.
PENGARUH MASSA KATALIS ZEOLIT ALAM PADA PROSES PIROLISIS LIMBAH PLASTIK LOW DENSITY POLYETHYLENE (LDPE) Stephanus Danny Kurniawan; Harwin Saptoadi
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 9 No 1 Agustus 2016
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v9i1.153

Abstract

Plastic wastes have considerable potential to be converted into alternative fuels through pyrolysis process and reduce negative impacts on the environment pollution. Plastic pyrolysis process carried out to obtain hydrocarbon compounds that can be used as fuel and increase the economic value of the plastic wastes. The raw material used is Low Density Polyethylene (LDPE). This study was conducted to determine the effect of variations in the mass of catalyst on the characteristics and applications of waste plastics pyrolysis oil (WPO). The reactor used was a batch-type fixed with a temperature of 450ºC, nitrogen flow rate of 0.8 l/min, which feedstock used is 2000gr and natural zeolite as a catalyst. The use of mass variation of Catalyst Feedstock Ratio (CFR) are 0.05, 0.10 and 0.15. The results showed that the increasing use of the mass of catalyst have an effect in decreasing of liquid products. Most liquid products obtained in the use of 100g catalyst, with a percentage of 56.75%wt liquid products, 38.60%wt gas products and 4.65%wt solid products. The results of the characteristics and properties testing of plastics pyrolysis oils include specific gravity, kinematic viscosity, flash point, pour point, cloud point, water content, ash content, carbon number distribution and PONA analysis showed that the pyrolysis oil has similarities with kerosene and diesel oil as well can be developed as analternative fuels.
PEMBASMI HAMA SERANGGA MENGGUNAKAN CAHAYA LAMPU BERTENAGA SOLAR CELL Subandi -
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 9 No 1 Agustus 2016
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v9i1.154

Abstract

In the general area of ​​rice fields found many kinds of insects that destroy rice plants. One of the properties of insects is to have an interest in light, in practice traditionally it has long been applied for example using a lamp pumped to catch insects (moths). The light intensity can affect insect behavior (hamma) that can be used in agriculture (hamma control insects) and can be used as animal feed. The problems are very interesting to be experiments in this study was designed prototype insect repellent uses light solar powered lamp that is safe from a short circuit and a fire. The working principle of this prototype is when the sun sank in the afternoon, the lights light trap will turn on automatically for electrical energy emitted comes from batteries, solar panels will convert solar energy into electrical energy and then store it in the battery, then converted electric unidirectional (dc) into alternating electric current (ac) using the inverter to flow into the trap light lamps (TL ultraviolet). Prototype testing was conducted for 4 hours/day from 18:00 until 22:00pm, at these times most insect activity comes closer to an ultraviolet lamp. In accordance with the magnitude of the solar panel and the battery used in this prototype, the electrical load that can be supplied to the 10 watt UV lamp (6 hours/day), 15watts (4 hours/day), 20watts (3 hours/day). Ultraviolet light 20watt lamp is able to collect insects in large numbers consisting of hamma leafhoppers, beetles, walang rice pest, crickets, and grasshoppers. Indirectly, this prototype could be said to be very helpful to farmers in terms of overcoming hamma attacks on rice
ANALISIS POHON KEPUTUSAN TERHADAP ANALOGI TAKSONOMI BLOOM UNTUK MENENTUKAN TINGKAT KEMAMPUAN MAHASISWA Danny Kriestanto
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 9 No 1 Agustus 2016
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v9i1.155

Abstract

People’s learning ability are varies, including for the undergraduate students. These students have different capability in absorbing knowledge, as previous researches stated (2010-2015). In this research, the data that had been used were twice more than the previous research. In order to find more information about Cognitive Aspects that had been affecting STMIK AKAKOM students in using Information Technology, decision tree were used. The result shown that generally the students are divided into 2 massive groups: a group that learn to memorize by applying first, and a group that learn creating by applying before learn how to memorize and understand how things work. That is, however, showing the learning pattern of the students.
PERANCANGAN DAN PENGUJIAN UNJUK KERJA SISTEM MONITORING KADAR LENGAS BERBASIS GYPSUM BLOCK UNTUK MEMANTAU DINAMIKA TANAH POLIETILEN, POLISTIREN DAN OTHER Agung Prasetyo; Eka Firmansyah; Lilik Sutiarso
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 8 No 2 Februari 2016
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v8i2.158

Abstract

Soil moisture sensor (moisture content) is very important in determining the time a crop irrigation, soil wetting depth, the depth of the growth of plant roots and soil wetting sufficiency. This study discusses the design and implementation of the system of measuring soil moisture content of gypsum block based electronic. Measurement data are stored automatically in a database and then performed with a sensor calibration step gravimetric measurement results. The test results demonstrate system performance design performance measurement system with accuracy (%) error rate. Then used to determine gypsum block sensors with good performance
PERANAN SULFUR DIOKSIDA PADA PEMBENTUKAN KOROSI LOGAM DAN IMPLIKASINYA BAGI KESEHATAN MANUSIA DI GUNUNG LUMPUR, DESA KUWU, KECAMATAN KRADENAN, KABUPATEN GROBOGAN, PROPINSI JAWA TENGAH Arie Noor Rakhman
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 8 No 2 Februari 2016
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v8i2.159

Abstract

This research aims to review the existence of sulfur dioxide result of the mud volcanoes Bledug Kuwu. Research sites in the Kuwu Area, Kradenan District, Grobogan Regency, Central Java Province. Utilization of research results for the potential of sulfur dioxide’s influence for human health by identification of the nature of corrosion metal formed. The method used in the form of field and laboratory, that was performed by comparing some of physical and chemical characteristic of mud and water. The determination supported by observation the nature of corrosion metal in the field. By recognizing geology medical condition following corrosion metal identification, its obtained benefit to analyze the potential an impairment of health and directive treatment. Farther away from the center of the mud volcano, the potential of sulphur gas pollution tends to be low. Sulphur content less than 73,83 ppm to 10,90 ppm. Pollution influenced by geogen and biogen, that it was identified from the growth of vegetation and corrosive metal existence. Vegetation can live starting 200 meters from the center of the mud volcano and fertile at more than 300 meters. This were in accordance with the existence of corrosion (rusts) on metal that its more vulnerable when approaching to the center of the mud volcano. Potential an impairment of health are irritation respiratory systems, irritation of the windpipe, acute toxicity for the old man and there are had the disease chronic in cardiovascular respiratory system. Hence tourist development should be accompanied by medical equipment, awareness of the use of mask to anticipate respiratory disorders, socialozation for visitors and the community of the most sensitive due to pollutants sulfur dioxide
ANALISIS PENGARUH KEPADATAN LALU LINTAS TERHADAP KUALITAS UDARA DI KAWASAN KAMPUS TERPADU UNIVERSITAS ISLAM INDONESIA Aulia Ulfah Farahdiba; Any Juliani
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 8 No 2 Februari 2016
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v8i2.160

Abstract

The development of transport activities that can increasing of contaminants in the air. This would lead to the influence of environmental conditions and health. UII campus is a campus that is committed to applying the campus of low-emission and environmentally based. This study analyzes the density of traffic that occurs in the area of ​​UII Kaliruang. This research analyzed the relationship with environmental conditions of factors: noise, vibration, NOx, and TSP (Total Suspended Particle). Traffic density in the UII is still relatively medium speed (service A). This study shows that the condition of the environment caused by transport is a positive relationship, that the higher the intensity of transport will decrease the environmental condition. Environmental condition that occurs due to transport to NOx, noise and vibration are still in tiers below the quality standards. While the TSP at noon already classified in a higher intensity. Although the integrated campus UII still in a modest scale, but the development for follow-up treatment can cope with environmental conditions worsened
IDENTIFIKASI PROVENANCE SELAMA MIOSEN TENGAH HINGGA PLIOSEN DICEKUNGAN SERAYU UTARA BAGIAN BARAT DI DAERAH KUNINGAN JAWA BARAT Bernadeta Subandini Astuti
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 8 No 2 Februari 2016
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v8i2.161

Abstract

Basinareaof western North Serayuis potentially for hydrocarbon such assource rock, reservoir, cap rock and manife stations of the oil. The basin composed by turbit current sediments during the Middle Mioceneto Pliocene. Petrographic analysis of the mineral quartz, feldspar and lithikh as been done to identify the provenance of rocks potentially hydrocarbon. Turbid currents bringrich sedimentlithic, that indicate origin of themagmatic arc. Lithicis reduced to wards younger and east ward. Reduced lithikindication of declining volcanism. Indications reduced lithikisdeclining volcanism. Rocks of western North Serayu basin, that is origin of this magmaticarcin several places found dead oil and oil see page, especially on the rock that show scoarsening up ward or decreasing the current sea level.
EFISIENSI PHRASE SUFFIX TREE DENGAN SINGLE PASS CLUSTERING UNTUK PENGELOMPOKAN DOKUMEN WEB BERBAHASA INDONESIA Desmin Tuwohingide; Mika Parwita; Agus Zainal Arifin
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 8 No 2 Februari 2016
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v8i2.162

Abstract

The number of indonesian documents which available on internet is growing very rapidly. Automatic documents clustering shown to improving the relevant documents search results of many found documents. Suffix tree is one of documents clustering method that developed, because it is proven to increase precision. In this paper, we propose a new method to clustering indonesian web documents based on phrase efficiency in the choice process of base cluster with the combination of documents frequency and term frequency calculation on the phrase with a single pass clustering algorithm (SPC). Every phrase that is considered as the base cluster will be vectored then calculate of the term frequency and document frequency. Furthermore, the documents will be calculate their similarity based on the tf-idf weighted using the cosine similarity and documents clustering is done by using a single pass clustering algorithm. The proposed method is tested on 6 dataset with number of different document 10, 20, 30, 40, 50 and 60 documents. The experiment result show that the proposed method succeeded clustering indonesian web documents by reducing the leaf node with no derivative and produces the F-measure an average of 0.78 while STC traditional produces the F-measure an average of 0.55.This result prove that the efficiency of phrase by phrase choice on internal nodes and leaf nodes that have derivative, and a combination of term frequency and document frequency calculation on the base cluster, gives a significant impact on the process of clustering documents.

Page 8 of 54 | Total Record : 534

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