IPTEK Journal of Proceedings Series
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Braille Character Recognition Using Artificial Neural Network
Get PDFBraille letter is characters designed for the blind, consist of six embossed points, arranged in a standard braille character. Braille letters is touched and read using fingers, therefore the sensitivity of the fingers is important. Those characters need to be memorized, so it is very difficult to be learned. The aim of this research is to create a braille characters recognition system and translate it to alpha-numeric text. Webcam camera is used to capture braille image from braille characters on the paper sheet. Cropping, grayscale, thresholding, erotion, and dilation techniques are used for image preprocessing. Then, artificial neural network method are used to recognize the braille characters. The system can recognize braille characters with 99% accuracy even when the braille image is tilted up to 1 degrees
Managing Risk of Lean Manufacturing Concept Implementation Approaching by Delphi and HOR
Get PDFThe implementation of Lean Manufacturing (LM) concept was first performed at automotive industries. It is not easy being lean. Lean manufacturing concept implementation will not succeed at the first time. There were things that may have prevented the implementation meeting the objective is considered as risk. It necessary to maintain the risk of LM concept. This research will show the way for managing risk of LM implementation by Delphi and House of Risk method. This research was team up with aerospace industry in Indonesia who has been implementing LM concept. In this research, 19 risks have been identified. The rank of risk agent has been determined
Prioritizing Usability Factors for Website Usability Improvement: A Case Study of Student Academic Information System at Brawijaya University
Get PDFThe importance of usability can determine the success or failure of the web application. Conventional approaches of usability evaluation methods only consider the average score from usability assessment which represents the frequency of problems from users when using the website. Another approach to measure the impact of usability factors can be calculated using the method of Partial Least Square. The case study show that combining between this two approaches (average score of usability assessment and impact of usability factors) can be considered for decision makers in prioritizing factors usability
Cost Optimization In The Scheduling On Heat Exchanger Cleaning Process
Get PDFCost utility is very important in an industry, particularly in the chemical industry. For an industry that operates the heat exchanger in the production process, utility usage is determined by the maintenance of this devices, one of which is cleaning. Therefore, it is necessary to schedule the optimal cleaning in order to obtain optimum expenses as well. in this paper, a cost optimization model has been developed to obtain ideal scheduling that takes into account the time of cleaning with minimum targets utility costs. Simple case study problem will be given to show the application and the result
The Fusion of Smartphone Sensors for Indoor 3D Position and Orientation Estimation
Get PDFThe improvement in smartphone technology has encouraged the exploration in field of user experience. The internal inertial navigation system sensors of a smartphone enables it to infer the its three dimensional indoor orientation and position when it is being pointed at certain objects by hand. However, the sensors’ flawed measurements complicate estimation of position and orientation precisely. Previous studies shows that sensor fusion of both internal and external measurements can enhanced the performance. However, those estimations didn’t cover the pointer-like usage. To achieve the possibility of smartphone as pointer, the estimation using sensor fusion has been performed. Unfortunately, these experiments resulted in bad position estimation for small precision, while the orientation estimation was passabl
Abstract of Invited Speaker : Green Concept in Engineering Practice
No full textIn recent time, becoming green is not only a matter of compliance with regulations, however it is a matter of responding to the expectations and demands of our world, country, community, stockholders, customers, employees and competitors. These matters create tremendous pressure for companies to carry out their activities in a more environmental friendly.Being green requires the best engineering minds and commitment from the entire organization. Engineering is all about practicality finding solutions to improve theconditions. Excellent understanding of the fundamental engineering is a key to helping industrial activities tobecome greener and the engineers are in an ideal position to contribute in these activities, in term of development andimplementation of technologically sound, as well as cost- effective solutions.Green initiatives create big business opportunities in the order of trillions of dollars for innovative companies and engineers, in this decade. These business activities arestarted from research and development, plant design, plant construction and plant operation stage. This paper presents some ideas on how to implement the green concept in engineering activities. The case studies application ofgreen engineering in refinery crude preheat train and cement plant waste heat recovery generation are also presente
Design Fuzzy Disturbance Observer with Neuro-Fuzzy Invers Model for Parallel Hybrid Electric Vehicle Speed Controller
No full textIn this paper, fuzzy disturbance observer with neuro-fuzzy invers model is proposed to control speed of parallel hybrid electric vehicle (PHEV) with change in disturbance. Disturbance make unstable speed so that actual speed of PHEV is not equal to reference speed. Fuzzy disturbance observer is used to make actual speed of PHEV is equal to reference speed when disturbance applied on it. The result show that fuzzy disturbance observer can reject the disturbance so that so its speed has more stable
Conference Committee
Get PDFHonorary CommitteProf. Ir. Joni Hermana, M.Sc.Es, Ph.D, Rector of Institut Teknologi SepuluhNopember Surabaya (ITS)General ChairmanProf. Dr. Ir. Adi Soeprijanto, M.T., Director of PostgraduateProgramme ITSSteering CommitteeProf. Dr. Ir. Sekartedjo Koentjoro, Department of Engineering Physics,ITS (Chair)Prof. Ir. Priyo Suprobo, M.S., Ph.D., Department of Civil Engineering, ITSProf. Ir. Ontoseno Penangsang, M.Sc., Ph.D., Department of ElectricalEngineering, ITSProf. Ir. Eddy Yahya, M.Sc., Ph.D., Department of Physics, ITSProf. Dr. Ir. Happy Ratna Santosa, M.Sc., Department of Architecture, ITSProf. Ir. Renanto Handogo, M.S., Ph.D., Department of ChemicalEngineering, ITSProf. Dr. Ir. Bangun Muljo Sukojo, DEA, DESS, Department of GeomaticsEngineering, ITSProf. Ir. Eko Budi Djatmiko, M.Sc., Ph.D., Department of Ocean Engineering,ITSProf. Ir. Arif Djunaidy, M.Sc., Ph.D., Department of Information System,ITSProf. Dr. Yulinah Trihadiningrum, M.App.Sc, Department of EnvironmentalEngineering, ITSProf. Dr. Udi Subakti Ciptomulyono, M.Eng.Sc., Department of IndustrialEngineering, ITSProf. Ir. IK Aria Pria Utama, M.Sc., Ph.D., Department of Naval Architecture,ITSProf. Dr. Ketut Buda Artana, S.T., M.Sc., Department of Marine Engineering,ITSProf. Drs. Mardi Santoso, Ph.D., Department of Chemistry, ITSProf. Ir. Sutardi, M.Eng., Ph.D., Department of MechanicalEngineering, ITSProf. Ir. I Nyoman Pujawan, M.Eng, Ph.D., Department of IndustrialEngineering, ITSProf. Ir. Joko Lianto Buliali, M.Sc., Ph.D., Department of InformaticsEngineering, ITSDr. Subchan, S.Si, M.Sc., Department of Mathematics, ITSDr.rer.nat. Ir. Maya Shovitri, M.Si, Department of Biology, ITSDr. Sungging Pintowantoro, S.T., M.T., Department of Material andMetallurgical Engineering, ITSDr. Imam Baihaqi, S.T., M.Sc., Department of IndustrialEngineering, ITSDr.rer.pol. Heri Kuswanto, S.Si., M.Si., Department of Statistics, ITSScientific Committee:Dr.rer.nat Aulia MT Nasution., Department of Engineering Physics,ITS (Chair)Prof. J.C. Liu, NTUST TaiwanRozalina binti Zakaria, PhD., University of MalayaDr. Iwan Halim Sahputra., Texas A&M Univ. at QatarProf. Heru Setyawan., Department of ChemicalEngineering, ITSDr. Totok Soehartanto, DEA, Department of Engineering Physics,ITSDr. Suhartono, Department of Statistics, ITSDr. Subiono, Department of Mathematics, ITSDr. Djoko Purwanto, Department of ElectricalEngineering, ITSDr. Harus Laksana Guntur, Department of MechanicalEngineering, ITSDr. Nani Kurniati, Department of IndustrialEngineering, ITSDr. Eng. Hosta Ardhyananta, S.T., M.Sc., Department of Material andMetallurgical Engineering, ITSDr. Dyah Susanti, Department of Material andMetallurgical Engineering, ITSDr. Murni Rachmawati, Department of Architecture, ITSEndah Wahyuni, PhD., Department of CivilEngineering, ITSDr. –Ing Teguh Harijanto, Department of GeomaticsEngineering, ITSDr. Eng. Rudi Walujo Pratianto, Department of Ocean Engineering,ITSWaskitho Wibisono, PhD., Department of InformaticsEngineering, ITSDr. Apol Pribadi Subriadi, Department of Informatics System,ITSDr. Mat Syaiin, Shipbuilding Institute of PolytechnicSurabayaDr. Ali Musyafa’, Department of Engineering Physics,ITSDr. Ridho Hantoro, Department of Engineering Physics,ITSOrganizing Committee :Dr. Ir. Aulia Siti Aisjah, M.T., Department of Engineering Physics,ITS (Chair)Dr. Ir. Ria Asih Aryani Soemitro, M.Eng, Department of Civil Engineering, ITSAgus Muhammad Hatta, S.T., M.Si., Ph.D., Department of Engineering Physics,ITSDetak Yan Pratama, S.T., M.Sc., Department of Engineering Physics,ITSDr. Dhany Arifianto, S.T., M.Eng., Department of Engineering Physics,ITSDr.-Ing. Doty Dewi Risanti, S.T., M.T., Department of Engineering Physics,ITSGunawan Nugroho, S.T., M.T., Ph.D., Department of Engineering Physics,ITSDr. Purwadi Agus Darwito, S.T., M.Sc., Department of Engineering Physics,ITSTotok Ruki Biyanto, S.T., M.T., Ph.D., Department of Engineering Physics,ITSDyah Sawitri, S.T., M.T., Department of Engineering Physics,ITSBagus Tri Atmaja, S.T., M.T., Department of Engineering Physics,ITSArief Abdurrakhman, S.T., M.T., Department of Engineering Physics,ITSLizda Johar Mawarani, S.T., M.T., Department of Engineering Physics,ITSWahyu, SSi, MT., Department of ChemicalEngineering, ITSNur Endah Nuffida, ST, MT., Department of Architecture, ITSIpung Fitri Purwanti, ST, MT., Department of EnvironmentalEngineering, IT
Work Function Modulation with Self-assembled Monolayers: Effect of Dipole Moment on Packing Density
Get PDFA series of benzylmercaptans carrying different para-substituents were used to form self-assembled monolayers on gold in order to modulate the work funtion of the metal electrode. Ellipsometry, Reflection Absorption Infrared Spectroscopy (RAIRS), and cyclic voltametry were used to chracterized the structure of the monolayer. The results show that as the dipole moment increases in the molecule, the surface coverage decreases. This can be the reason that a more polar molecule does not necessarily generate work function change proportionally
The Spatial Consequences of High-Rise Building of The Public Space of Basuki Rahmat Corridor, Surabaya
Get PDFHigh-rise building functioned as a reflection of the city growth toward modernism. It indicated changes for more advanced urban development, showing the quality at various section, such as tourism, economy, and its environment. The rapid growth of vertical building creating an effect towards the surrounding environment, the public space, which need to be acknowledged and evaluated. The research method applied to the study was descriptive qualitative, mainly focused at analyzing the spatial consequences of high rise building upon the public space of Basuki Rahmat Corridor, Surabaya. The data was presented by index card and analyzed by using synchronic reading techniques. The results shows that there is relation and linkage between the public space and the high-rise building at the corridor