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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
 101   102   103   104   105 
The Exterior and Driver Cabs of Locomotive CC300 Based on Integrated Digital Design Agus Windharto
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.y2014i1.395

Abstract

The research backgrounds are regarding amount growth of rail passenger that caused by impacts of Indonesian Economic development. The demand of new Locomotive and wagon Railways is increasing, this condition not followed by the growth of domestic industry ability in design, production and  manufacturing. At this time being, this national demand full filled by imported products and licensing collaboration between PT KAI - PT INKA with General Electric. On the initiative of PT KAI and PT INKA, the programmed design prototype for  locomotive cc300 double cabin conducted . In this synergetic program, Engineering design studies and technology transfer carried out by PT INKA team, while exterior -drivers cabs design - human factor study carried out by ITS team.The research proposition are not well  defined yet of design reference design for the exterior and driver cabs . Demand for integrated design and manufacturing process need to be answered. Lack of national stakeholder trust in national railway industry  train designing and manufacturing locomotives independently.The research purpose is to provide  design reference for CC300 locomotive exterior and the cab driver.  Integrating design engineering process to produce products that meet the better standards for locomotive in form of QCD ( Quality , Cost and Delivery ) . Convincing National  stakeholder in the National Railways to invest on design and production of locomotives in Indonesia.The research method is IDD ( Integrated Digital Design ) that flow of research phase from the study concept interior exterior shape , stage geometry , ergonomics studies , and model studies to prototyping stages.This research result is CC300 Locomotive Exterior design, Driver Cabs design, scaled model and prototype that recently on static and dynamic test.
Javanese-Indonesian Female Facial Expression (JIFFE-3D) Based on 3D Marker Muhtadin Muhtadin; Surya Sumpeno; Hosyi’ah Rusdiana
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.y2014i1.409

Abstract

Facial expression is a topic which is frequently used in several areas of research, such as security, psychology, and entertainment. All of these researches demand a high quality source data of facial expression. This research builds Javanese-Indonesian Female Facial Expression Database in three dimensional data called JIFFE-3D Database. JIFFE-3D Database contains facial expression which expresses Javanese-Indonesian female universal emotions, such as happiness, disgust, fear, angry, surprise, and sadness. JIFFE-3D Database is made by using motion capture system to capture changes in facial expression which is characterized by a shift in markers on face. The facial expression is captured by multi camera and saved in 3D data. JIFFE-3D Database could be a high quality source data if all data use only marker which has influence the shifting in facial expression.
Steering System Kinematic and Steady-State Cornering Analyses of the ITS Electric Car Unggul Wasiwitono; Indra Sidarta; Agus Sigit Pramono; Sutikno Sutikno; Alief Wikarta
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.y2014i1.233

Abstract

Steering linkages play an important role in maneuvering of cars. In order to provide pure rolling of the road wheels and to reduce wear of the tires, the steering linkage must be able to turn the wheels such that their axis intersection point lies on the rear wheel axis. This condition is known as the Ackermann condition. However, in reality, Ackermann condition is difficult to satisfy for every cornering radius. The only effort we can do is to synthesize the linkage so that the Ackermann condition is satisfied for any turning radius as closely as possible. Hence, an appropriate kinematic model of the steering linkage is essential. The purpose of this research is to analyze the rack and pinion steering linkage for the ITS electric car prototype. From this analysis, the information on the steering linkage dimension and the placement of the steering linkage that give minimum steering error can be obtained. The steering error is defined as the difference between the actual angle made by the outer front wheel during steering maneuvers and the correct angle for the same wheel based on the Ackerman principle. In addition, the steady-state cornering behavior analysis is also conducted. From this analysis, the information of the center of gravity location that give better cornering characteristics can be obtained. Therefore, these analyses help and can be used as starting point to design the chassis and cabin for the ITS electric car prototype.
Distribution Network Efficiency Improvement Based on Fuzzy Multi-objective Method Ramadoni Syahputra; Imam Robandi; Mochamad Ashari
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.y2014i1.422

Abstract

This paper presents a reconfiguration methodology based on a fuzzy multi-objective approach for achieving the minimum active power loss and the maximum voltage magnitude of radial distribution networks with distributed generations in order to improve the distribution system efficiency. Multi-objective function are considered for load balancing among the feeders, minimization of the real power loss, and deviation of bus voltage, while subject to a radial network structure in which all loads must be energized. These objective functions are modeled with fuzzy sets to evaluate the imprecise nature of each objective. Originality of the research is that the fuzzy-based multi-objective optimization in reconfiguration of distribution network including the distributed generation. The implementation of the fuzzy multi-objective for distribution reconfiguration on a 77 bus distribution network with distributed generation is described. The simulation results show that a 1.80% of electric power distribution network efficiency improvement is achieved by the method
Performance of Anaerobic Reactor in Attached and Suspended Growth Mechanisms for the Removal of Tofu Wastewater Rosvita Tri Jullyanti; H. Purnobasuki; T. Nurhariyati; F. N. Rachman; N. I. Oktavitri
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.y2014i1.220

Abstract

This study assessed the removal efficiency of organic compounds in attached and suspended growth mechanisms when an anaerobic reactor was used to treat tofu wastewater. Parameters such as BOD (BiologicalOxygen Demand), TSS (Total Suspended Solid) and VSS (Volatile Suspended Solid) were measured. The assessments of removal efficiency were measuredby the amount of degradation of organic compounds caused by the microorganisms. The analyses were conducted for 14 days with a ratio of 40% air and 60% wastewater for the suspended growth mechanism. In attached growth, gravel served as the media at 30% from 60% of wastewater with 40% air. The removal efficiency of organic compounds measured as the decrease of BOD, TSS, and VSS – in suspended and attached growth. BOD in suspended growth decrease 5,55% while 76,46% in attached growth, TSS in suspended growth decrease 64,59% while increased 19,40% in attached growth, similar results occurred for VSS parameter decrease 2,04% while increased 31,53%. The increased result of TSS and VSS in attached growth caused of biofilm growth. In conclusion, BOD, TSS, and VSS decreased greater when the anaerobic treatment in attached growth was applied.
The Effect of Furnace Temperature and Precursor Concentration Ratio to The Characteristics of Nanocomposite ZnO-Silica Iva Maula; Widiyastuti Widiyastuti; Tantular Nurtono; Fadlilatul Taufany; Siti Machmudah; Sugeng Winardi
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.y2014i1.323

Abstract

Zinc Oxide is a semiconductor with relatively non-toxic, cheap and abundant properties which can be applied to LEDs. ZnO colloids are unstable due to further chemical reactions and coagulation so the addition of silica is needed to inhibit the growth of ZnO. ZnO was synthesized using sol-gel method by hydrolyze zinc acetate dihydrate in ethanol solution. Silica colloids was prepared by dissolving waterglass in distilled water at a temperature of 60 °C then passed into cation resin that has been activated using 2N HCl for ion exchange with Na+ to H+. In this study, the spray drying method was used to produce ZnO-silica nanocomposite. Morphological characterization of particles formed was analyzed using Scanning Electrostatic Microscope (SEM) (Zeiss Evo MA LS, Cambridge, England). X-Ray Diffraction (XRD) (Cu-Kα 1.54 A0, 40 kV, 30 mA, X’pert Pro, PAN alytical, Netherlands) and Fourier Transform Infrared (FTIR) (Therniscientific Nicolet iS10, US) were used to analyze the crystallinity and group functionalization, respectively. The results show that more particles are formed on 10% concentration volume of ZnO colloids rather than 5%.
The Effect of Financial Ratio in Financial Distress with Firm Size as Moderated Variables (Empirical Study of Manufacturing Sector Companies Listed on The Indonesia Stock Exchange for The 2014-2018 Period) Suharti, Suharti; Purnamasari, Yunita; Patria Mahari, Ardhyayuda; Astutik, Menik Puji; Pawiati, Suci
IPTEK Journal of Proceedings Series No 1 (2020): The 1st International Conference on Business and Engineering Management (IConBEM)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2020i1.11358

Abstract

This study aims to obtain empirical evidence and analyze the effect of financial ratios on financial distress with firm size as a moderating variable. The financial ratios include liquidity ratios that are proxied by Current Ratio, solvency ratios proxied by Debt Asset Ratio, profitability ratios proxied by Return on Assets and Firm Size proxied by the natural logarithm of Total Sales. The population in this study were manufacturing companies listed on the Indonesia Stock Exchange in 2014 - 2018. The total sample used in this study were 85 companies based on established criteria. Data analysis was performed by binary logistic regression and Moderated Regression Analysis. The results of the analysis of this study indicate that the Current Ratio, Debt Asset Ratio and Return on Assets have a significant negative effect on financial distress. The results of the Moderated Regression Analysis reveal that firm size has a significant moderation effect on the relationship between the three independent variables and financial distress in manufacturing companies.
Potency Analysis of the Batik MSMES Industrial in Surabaya Using Geographic Information System Wijaya Justian; Muhammad Taufik
IPTEK Journal of Proceedings Series No 2 (2019): The 3rd Geomatics International Conference (GEOICON) 2018
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2019i2.5297

Abstract

Behind the slowing global economic growth, MSME sector plays a very important role in maintaining the stability of national economy. In 2016 the contribution of the MSME sector reaches 60.34% for the national gross domestic product (GDP). Batik itself is a cultural heritage of the archipelago that has been recognized by the world through UNESCO as a masterpiece of humanitarian heritage for oral and nonbendawi culture (Masterpiece of The Oral and Intangible Heritage of Humanity). So in order to support and develop the sector of batik MSMEs in Surabaya required a system to monitor and analyze the potential of MSMEs in Surabaya batik is the construction of geographic information systems. The purpose of this research is to make a potential map of MSMEs of Surabaya city batik and GIS potency of batik MSME Surabaya city, which obtained by using scoring method based on distance parameter to transportation access, price range and completeness of batik product MSMEs in Surabaya. As reference and recommendation for related parties in developing potency of batik MSMEs in Surabaya. The results of the potential analysis of batik MSMEs in Surabaya are classified into 3 priority classification of high, medium, and low priority. Results of regional analysis that has MSMEs batik with high priority that is 13 MSMEs spread in South Surabaya amounted to 5 MSMEs, Central Surabaya amounted to 6 MSMEs, and North Surabaya amounted to 2 MSMEs. Then the medium priority of 24 MSMEs spread in South Surabaya amounted to 5 MSMEs, Central Surabaya amounted to 17 MSMEs, and North Surabaya amounted to 2 MSMEs. While the low priority of 4 MSMEs spread across Central Surabaya amounted to 1 MSMEs and North Surabaya amounted to 3 MSMEs
Deposition of Titanium Aluminium Nitride Thin Layer on High Speed Steel Substrate by Radio Frequency Sputtering Sigit Tri Wicaksono; I G.N.B. Dwistha Prayukti; Agung Purniawan; Tri Mardji Atmono
IPTEK Journal of Proceedings Series No 1 (2017): The 2nd International Conference on Civil Engineering Research (ICCER) 2016
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23546026.y2017i1.2201

Abstract

High Speed Steel (HSS) has been widely used in manufacturing industry as one of cutting tool materials because of its good mechanical properties yet with a low price. However, since this material has a low thermal resistance property, it will limit its application when used in dry cutting process. Several methods have been used to improve the cutting performance of HSS in dry cutting. One of them was by growing a thin layer of hard coating on the contact surface of the cutting tool material. In this research, Titanium Aluminium Nitride layer were deposited on AISI M41 High Speed Steel substrate by using Radio Frequency (RF) Sputtering method. The aims of this study were to analyze the effect of variations of Aluminium surface area ratios (10, 20, 30, and 40 %) on the Titanium target and also to analyze the effect of deposition time (15, 30, and 45 minutes) on the composition, phase characterization and morphology of the thin layer that formed. The formation of TiAlN and AlN crystalline compounds were observed by X-Ray Diffraction method. A dense layer with a thickness range from 1.4 to 5.2 µm was observed by using a Scanning Electron Microscopy. It was known that the deposition time affect the thickness and also the roughness of the layer. The topography images by Atomic Force Microscopy showed that the deposition time of 45 minutes produce the finest layer with the surface roughness of 10.8 nm.
Karakteristik Fisik Dan Mekanik Tanah Residual Balikpapan Utara Akibat Pengaruh Variasi Kadar Air Mohammad Muntaha; Lintang Caraka; Andika A.I. Saputra
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.y2018i1.3353

Abstract

Kota Balikpapan terletak di dekat garis khaturistiwa yang beriklim tropis mengakibatkan peristiwa alam berupa pembasahan pada musim pen­ghujan dan pengeringan saat musim kemarau yang berlangsung sepanjang tahun. Proses pembasahan dan pengeringan akan mempengaruhi sifat fisik dan mekanik dari tanah, karena perubahan kadar air dapat mengakibatkan perubahan volume tanah. Sampel pengujian tanah residual di ambil dari 3 lereng tanah residual yaitu ITK Balikpapan, PLTU Kariangau Balikpapan, dan PJI Balikpapan Utara; dengan menitikberatkan pengaruh variasi kadar air (pembasahan dan pengeringan) terhadap sifat fisik dan sifat mekanik tanah, pada tanah yang diambil pada kedalaman -0.5 m sampai dengan -1.5 m. Pengujian sifat fisik meliputi berat jenis tanah (γt), berat jenis kering tanah (γd), kadar air (wc), derajat kejenuhan (Sr), porositas (n), angka pori (e), Spesific Gravity (Gs) dan batas Atterberg (LL, PL, PI). Pengujian sifat mekanik yaitu kohesi (c) dan sudut geser dalam (φ). Proses pembasahan dilakukan dengan cara menambahkan kadar air dari kondisi awal (wi) sampai kondisi kadar air jenuh (wsat), variasi penambahan kadar air sebesar 25%, 50%, 75%, dan 100% dari selisih kondisi kadar air. Sedangkan proses pengeringan dilakukan dengan cara mengurangi kada­­­r air­ dari kondisi awal (wi) sampai kondisi kadar air kering (wdry), variasi pengurangan kadar air sebesar 25%, 50%, 75%, dan 100% dari selisih kadar air. Hasil pengujian menunjukkan terjadinya variasi perubahan sifat fisik dan mekanik yang cukup besar selama proses pembasahan dan pengeringan. Pada kedalaman 0,5 m tanah residual ITK, saat pembasahan mengalami penurunan kohesi 30,24%, dan angka pori naik sebesar 42,25%; tanah residual PLTU mengalami penurunan kohesi tanah 15,29%, dan angka pori naik sebesar 35,38%; tanah residual PJI mengalami penurunan kohesi tanah 31,59%, dan angka pori naik sebesar 31,79%. Selama proses pengeringan dari kondisi inisial kekondisi pengeringan 100 %, tanah residual ITK mengalami peningkatan kohesi tanah 34,09%, dan angka pori turun sebesar 55,30%; tanah residual PLTU mengalami peningkatan kohesi tanah 26,01%, dan angka pori turun sebesar 53,40%; dan tanah residual PJI mengalami penigkatan kohesi tanah 29,14%, dan angka pori turun sebesar 53,87%.

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