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IPTEK Journal of Proceedings Series
Published by Institut Teknologi Sepuluh Nopember Surabaya
ISSN : 23546026     EISSN : -     DOI : -
Core Subject : Science,
Computer Science & IT
IPTEK Journal of Proceedings Series publishes is a journal that contains research work presented in conferences organized by Institut Teknologi Sepuluh Nopember. ISSN: 2354-6026. The First publication in 2013 year from all of full paper in International Conference on Aplied Technology, Science, and Art (APTECS). It publish one time a year after the held of APTECS event.
Arjuna Subject : -
Articles 1,079 Documents
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Aromatic Hydrocarbons of Wondama Coal, Papua Barat Christoffel S I Maweikere; R Y Perry Burhan
IPTEK Journal of Proceedings Series No 1 (2015): 1st International Seminar on Science and Technology (ISST) 2015
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2015i1.1162

Abstract

Wondama coal were subjected to solvent extraction and aromatic hydrocarbon fractions obtained by thin layer chromatography with n-hexane as eluent. Aromatic fractions identified by Gas Chromatography-Mass Spectroscopy (GC-MS). Aromatic seskuiterpenoids, diterpenoid and triterpenoids were found in Wondama coal. This composition illustrates sources of organic matter derived from terrestrial higher plants.
A review of maintenance service for leasing equipment Kurniati, N; Widodo, E; Supriatna, A; Lestari, C
IPTEK Journal of Proceedings Series No 3 (2018): International Conference on Industrial and System Engineering (IConISE) 2017
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2018i3.3727

Abstract

Recent business trend focuses more on efficiency. One of the chosen ways is leased the capital equipment from other parties. The leasing option encourages both the lessee and lessor to discuss any consequences include responsibility for managing the equipment performance, rectifying failure during operation, maintenance option provided during leasing period, as well as the accompanying cost. The review and maping of publications are conducted based on the order in which the reference appears in the publication, in order to follow the development of thinking on the research topic of leasing, yet to identify the more recent development during the last decade. Several potential research ideas could be generated from the maping toward the fast and flexibel business
List of Keynote Speaker ISST 2015
IPTEK Journal of Proceedings Series No 1 (2015): 1st International Seminar on Science and Technology (ISST) 2015
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2015i1.1109

Abstract

List of Keynote Speaker
Analysis Effect of Exhaust’s Temperature, Total of Peltier’s Element and Circuit Type for Thermoelectric Generator Output Voltage at Exhaust Internal Combustion Vehicle Setyowidodo, Irwan; Fadhila, Achmad Tri; Mufarri, Am.
IPTEK Journal of Proceedings Series No 1 (2018): 3rd International Seminar on Science and Technology (ISST) 2017
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2018i1.3499

Abstract

This research based on researcher observation about internal combustion vehicle energy percentage, there is 40% energy flow away as high temperature exhaust gas. That percentage could converted as electricity energy with thermoelectric generator concept using peltier element. Purpose of this research are (1) getting optimum exhaust’s temperature to produce highest voltage, (2) getting optimum total of peltier elemen to produce highest voltage, (3) getting optimum circuit type to produce highest voltage, (4) getting optimum Seebeck coefficient point. This research is using L20 orthogonal matrix with three replication and design experiment factorial method. Independent variable that varied are exhaust’s temperature, total of peltier element and circuit type. Response variable in this research is output voltage that analyzed with Anova and contrast test (Scheffe’s method). This research’s result and conclusion is all combination that run simultaneous giving an effect at thermoelectric generator’s voltage, in Anova result. Based on main effect plot and contrast test, optimum combination factor for highest voltage are 2400C exhaust’s temperature, four peltier element in series circuit. Highest Seebeck coefficient at 0,0524 V/K. From this research, researcher suggest thermoelectric generator implimentation at exhaust internal combustion vehicle to use factor combination 2400C exhaust’s temperature, four peltier element in series circuit
Simulation of Direct Digital Synthesizer with LabView Elan Djaelani Suardja
IPTEK Journal of Proceedings Series Vol 1, No 1 (2014): International Seminar on Applied Technology, Science, and Arts (APTECS) 2013
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2014i1.357

Abstract

Direct Digital Synthesizer (DDS) is a frequency synthesizer to generate an arbitrary waveform. It is widely used for telecommunication applications such as RADAR and JAMMER. Nowadays, DDS is preferred than its traditional counterpart, the phase-locked loop (PLL). However, the price of DDS is still relatively expensive. For this reason, it is important to develop a simulation for DDS as a cheaper alternative to learn about DDS, especially for students. National Instrument (NI) has developed a simulation for DDS. However, this simulation may not accessible for student either. In this research, a simulation for Direct Digital Synthesizer (DDS) is developed. The DDS simulation developed by the National Instrument is improved by adding new features. The added features are the storage system, an integrated DAC and the use of 20 bit data for lookup.
`STILISTIKA, RETORIKA DAN PEMBANGUNAN Subali, Edy; Hendrajati, Enie; Marsudi, Marsudi; Hermanto, Hermanto
IPTEK Journal of Proceedings Series No 5 (2018): Seminar Nasional Teknologi dan Perubahan (SEMATEKSOS) 3 2018
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2018i5.4429

Abstract

Manusia pemakai bahasa merupakan ciptaan Tuhan yang paling sempurna. Kesempurnaannya justru karena manusia secara eksistensial bersifat labil. Ia selalu mempersoalkan adanya. Ia tidak pernah menganggap bahwa sesuatu bersifat final. Daur kehidupan manusia selalu berada dalam proses menjadi. Tidak pernah jadi-jadi. Oleh karenanya manusia berperadaban. Pertanyaannya, jika eksistensi manusia bersifat labil dengan ciri seperti tersebut maka apa dan bagaimana implikasinya terhadap pemakaian bahasa (stilistika dan retorika) dalam konteks pembangunan?Ada dua kerangka berfikir yang akan dipakai untuk menjawab pertanyaan tersebut. Pertama, empirisme-positivisme memosisikan bahasa hanyalah representasi realitas, mirror of reality karena realitas dan kebenaran dianggap riil-faktual atau alamiah-objektif. Dengan logika berfikir tersebut maka orientasi pemakaian bahasa lebih ke arah kategori benar atau salah dan baik atau buruk. Logika berfikir ini akan memberi peluang untuk dimanfaatkan kelompok atau golongan tertentu yang secara politik dan ekonomi dominan untuk menghegemoni.Kedua, logika berfikir kaum fenomenologis dan kritis. Realitas, makna, dan dunia menurut mereka hanyalah ada dalam kata atau bahasa. Dunia dalam kata atau bahasa tersebut hanyalah hasil berduel (retorika) dan konstruksi sejarah yang masih bersifat semu dan labil. Pertarungan atau duel itu merupakan konsekuensi logis bahwa realitas itu ada apabila sudah dalam bahasa. Bahasa sebagai sekretaris sang ada. Logika berfikir ini dapat bernilai positif-produktif karena dapat memberi peluang kepada manusia, masyarakat, dan bangsa yang sedang membangun untuk terhindar dari praktik-praktik sosial, politik, ekonomi, dan budaya yang bernuansa otoritarian-hegemonik.
3D Seismic Tomography Imaging of Taiwan Substructure Diah Ningrum, Susi Anggraini; Santosa, Bagus Jaya
IPTEK Journal of Proceedings Series No 1 (2015): 1st International Seminar on Science and Technology (ISST) 2015
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2015i1.1041

Abstract

Taiwan has a high rate of crustal deformation and a strong seismic activity. Taiwan is located on the convergent boundary between the Eurasian and the Philippine Sea plates. Seismic tomography is an imaging technique that uses seismic waves to create three-dimensional images of Earth’s interior. We use the earthquake of M > 4.7 and occurred in the period of 1 January 2009 to 31 December 2010. The data processing steps of seismic tomography are picking of P and S wave using SeisGram2K60, hypocenter relocation using Hypo71, and tomography inversion using LOTOS-12. The result shows that there is high Vp and Vs in the eastern Taiwan that represent the western boundary of Philippine Sea Plate with Longitudinal Valley.
Pemetaan Kerentanan Tsunami Kabupaten Lumajang Menggunakan Sistem Informasi Geografis Widodo, Amien; Warnana, Dwa Desa; N R, Juan Pandu G; Lestari, wien; Iswahyudi, Ary
IPTEK Journal of Proceedings Series No 2 (2018): The 2nd Conference on Innovation and Industrial Applications (CINIA 2016)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2018i1.3410

Abstract

Kabupaten Lumajang merupakan wilayah yang rentan terhadap tsunami karena berbatasan langsung dengan Pantai Selatan yang menjadi pusat gempa bumi serta keadaan pesisir pantai selatan Lumajang yang memiliki tingkat kepadatan penduduk dan pemukiman, aktivitas pemerintahan dan perekonomian yang tinggi. Pemetaan tingkat kerentanan tsunami perlu dilakukan sebagai informasi mitigasi dan rencana tata ruang wilayah. Lokasi penelitian adalah 5 (lima) kecamatan di pesisir Pantai Selatan Lumajang yaitu Yosowilangun, Kunir, Tempeh, Pasirian, dan Tempursari. Tujuan penelitian ini adalah membuat peta kerentanan tsunami Kabupaten Lumajang menggunakan Sistem Informasi Geografis (SIG). Pendekatan variabel kerentanan meliputi elevasi daratan, kemiringan, morfometri pantai, penggunaan lahan, jarak dari pantai dan jarak dari sungai. Metodologi penelitian antara lain pengumpulan data primer dan sekunder, pengolahan data parameter yang mewakili tiap variabel kerentanan serta pemberian bobot dan skor. Hasil kajian ini menghasilkan peta-peta variabel kerentanan wilayah penelitian yang selanjutnya dapat digunakan untuk kebijakan pemerintah daerah dan tindakan mitigasi seperti pemetaan tingkat risiko tsunami.
Excavation Analysis using Stress Path Dependent Soil Parameters Nawir, Hasbullah; Prasetyo, Bagus Eko; Apoji, Dayu
IPTEK Journal of Proceedings Series No 6 (2017): The 3rd International Conference on Civil Engineering Research (ICCER) 2017
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2017i6.3241

Abstract

This paper presents numerical analyses of an excavation using stress path dependent soil parameters, where soil elements in a region of an excavation are represented by specific soil parameters that correspond to their specific stress paths. The performance of the M1 excavation pit in Berlin sand was selected as the analysed case. This excavation pit was supported by diaphragm-wall with a single row of pre-stressed anchors. The numerical analyses of the excavation were performed using finite element program PLAXIS 3D. Mohr-Coulomb model and Hardening Soil model were used as the soil constitutive models. The analyses were performed using two approaches, which are: (i) analysis using axial compression soil parameters, and (ii) analysis using stress path dependent soil parameters. A set of conversion ratios were employed to convert the general soil parameters (i.e. axial compression stress path) to the soil parameters of the other stress paths. These conversion ratios were obtained from an experimental program of true triaxial tests conducted on Bangka sand. The comparison of the field records and the analysis results were discussed. The results show that the stress path dependent approach produced better prediction of diaphragm-wall deformation compare to the general approach using axial compression soil parameters.
Chemical Bonds Visualization using Particle Effect and Augmented Reality Christyowidiasmoro Christyowidiasmoro; Surya Sumpeno
IPTEK Journal of Proceedings Series Vol 1, No 1 (2014): International Seminar on Applied Technology, Science, and Arts (APTECS) 2013
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2014i1.285

Abstract

Augmented Reality (AR) is a research area that allow to overlay multimedia contents such as text and visual information onto real world through camera views. AR can be used to as an educational assistance to help student acquire a deep conceptual understanding and spatial intuition. The course material can be enriched by viewing multimedia content, as well as in tabletop AR environment. We present this paper an AR system for teaching chemical problem solving especialy chemical bonds to highschool students.  Our system is built based on inexpensive webcams and open-source library. Chemical bonds are visualize through marker. By combine different markers, student can get different result and visualization.  A survey was conducted after experience the AR chemical bonds, show great acceptance of system and visualization.

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