National Institute of Technology Malang

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Soetedjo A.,National Institute of Technology Malang | Somawirata I.K.,National Institute of Technology Malang
International Journal of Innovative Computing, Information and Control | Year: 2017

This paper presents an implementation of eye detection on the embedded system. Two earn, era systems based on the low cost, Raspberry Pi modules are employed. To speed up the process, the proposed system implements the face detection technique and the eye detection technique on two camera modules separately. The face detection module detects the bounding box of face and sends the coordinates to the eye detection module via a serial communication. In the eye detection module, the eye is searched on a limited area defined by the face’s bounding box. The popular Viola-Jones object detection is employed in the face detection module. Three eye detection techniques, consisting of the Viola-Jones method, the eye-map method, and the Hough circle transform method, are implemented and evaluated in the eye detection module. The best- result is obtained by the Hough circle, transform 'method, where the frame rate of 30.020 fps, the true positive rate of 0.869, and the precision of 0.824 are achieved. © 2017 ICIC International.


Faradisa I.S.,Sepuluh Nopember Institute of Technology | Faradisa I.S.,National Institute of Technology Malang | Anggriawan D.O.,Politeknik Elektronika Negeri Surabaya | Sardjono T.A.,Sepuluh Nopember Institute of Technology | Purnomo M.H.,Sepuluh Nopember Institute of Technology
Proceeding - 2016 International Seminar on Intelligent Technology and Its Application, ISITIA 2016: Recent Trends in Intelligent Computational Technologies for Sustainable Energy | Year: 2016

Auscultation is one of method that has been used by doctor in the process to identify heart disease. But with only using auscultation is not possible to obtain quantitative data, because relating to the skills, experience and subjectivity doctor, for it to be made a program that can help doctors to identify heart abnormalities. Short Time Fourier Transform is used to analyze the frequency and timing of the patterns of normal and abnormal heart sounds. With the method of Levenberg Marquardt Back propagation expected 10 class heart sound can be identified with a good. The results showed that the accuracy will be higher when the number of neurons increased. When neurons 25 produce more accurate results with accuracy percentage is higher and more stable for each class. Where the highest accuracy is on the holo diastolic murmur class and the Normal Heart class with accuracy up to 99,9999%. © 2016 IEEE.


Utaminingrum F.,Brawijaya University | Somawirata I.K.,National Institute of Technology Malang
Proceedings - 11th International Conference on Signal-Image Technology and Internet-Based Systems, SITIS 2015 | Year: 2015

This paper proposes rain streaks removal by combining of the smoothing methods and image enhancement. We design an efficient method for detecting and removing rain streaks in the image. The rain streaks component is obtained by reduction of the original image rain streaks with blur image, and then conducted in the quantization process. Regarding to the image quantization results, we can find a non rain streak and rain streak components. Furthermore, rain streak components are replaced by the pixels of enhancement image results that generate non-rain estimation. Finally, by implementing artefact removal from the summing of the non rain component and non rain component estimation of an image generate a rain removal method. Simulation results show the proposed method successfully eliminate the rain streaks and maintain non rain streaks. © 2015 IEEE.


Suhartono,UIN Maulana Malik Ibrahim Malang | Mahmudi A.,National Institute of Technology Malang
Journal of Theoretical and Applied Information Technology | Year: 2014

Earthquake early warning service for tsunami is important for the public. On one side the service cannot be easily accessed by the public especially television users. On another side the development of television technology, especially digital television, should be much easier to access. The purpose of this research is to make the method of processing data in Multimedia Home Platform (MHP) Applications for Earthquake Early Warning of Potentially Tsunami Services. Earthquake and weather data are taken from the web site Application Programming Interface (API) by The Meteorology, Climatology, and Geophysics (BMKG) in Indonesia. The research method is parsing techniques eXtensible Markup Language (XML) with the Document Object Model (DOM). The time interval for data collection from the Web site of BMKG uses the method of Systematic Sampling. Therefore, MHP applications can update Earthquakes and weather data in real-time in a specified interval. The results of XML parsing form of tsunami potential earthquake data are recorded by MHP applications into file storage. The findings show that MHP applications can display earthquake early warning of potentially Tsunami information to users of television accordance with BMKG website in real time. © 2005 - 2014 JATIT & LLS. All rights reserved.


Daryono E.D.,National Institute of Technology Malang
International Journal of ChemTech Research | Year: 2015

The purpose of this study was to obtained optimum conditions a reactive extraction process in isolation eugenol from clove essential oil associated with the temperature and time process. Research stage begins by inserting a 100 ml clove essential oil and 0.8 N NaOH solution at a ratio of 1:1.1 to the reactor. Turn on the hot plate and set the appropriate reaction temperature variables of the study (30, 40 and 50°C) and set the stirrer speed of 100 rpm. After a reaction time achieved according to the study variables (15, 30, 45, 60 and 75 minutes) the reaction product was then separated. The bottom layer was Na-eugenolat (aqueous layer) and the top layer was organic layer. Na-eugenolat (aqueous layer) was then added 5 N HCl to obtain a pH of 4. Before placing distillation flask, Na-eugenolat that has been mixed with HCl silenced while for NaCl precipitate formed, then the newly inserted distillation flask which had been fitted condenser and thermometer. The mixture was then heated with a hot plate at a temperature of 195ºC and vacuum pressure of 6.10-2 kPa for 30 minutes. Distillate was eugenol and the residue was NaCl residual reaction products. Eugenol distillate which was then measured its volume and analyzed eugenol concentration by GC. The optimum process conditions obtained in the reactive extraction temperature of 40ºC, reaction time of 30 minutes at a concentration of eugenol of 51.07% and yield of 97.10%. © 2015, Sphinx Knowledge House. All rights reserved.


Jimmy,National Institute of Technology Malang | Poespowati T.,National Institute of Technology Malang | Noertjahjono S.,National Institute of Technology Malang
International Journal of ChemTech Research | Year: 2015

Sugar cane leaves as an agricultural waste is the one of biomass that can be considered as an energy feedstock. Sugarcane leaves contain high cellulose that can be converted into sugars through some pretreatments and enzymatic hydrolysis. The glucose is then fermented into second-generation bioethanol. The existence of hemicellulose and lignin will decrease the efficiency of enzymatic hydrolysis.Dried sugar cane leaves crushed using a grinder (disc mill) and sieved to 60 mesh size and restrained passes 80 mesh, then dried in an oven to constant weight to remove water content. As raw material for this treatment, hemicellulose removal is carried out at a temperature 121ºC in an autoclave for 20 minutes with solid/acid ratio 1:26 and sulfuric acid concentration 2,2%. This step produces material with 12% hot water soluble, 7% hemicellulose, 32% cellulose, 48% lignin and 0% ash. The lignin removal uses Sodium Hydrogen Sulfite solution (NaHSO3) pa from Merck.A raw material of 30 grams was mixed with 780 mL of sodium hydrogen sulfite solution in a stirred reactor for 30 minutes and 100 rpm. Variations conditions is the operating temperature (160, 170 and 180ºC) and sodium hydrogen sulfite concentration (8%, 9%, 10%, 11%, 12%). Sulfite pretreatment is affected by sodium hydrogen sulfite concentration and temperature. The optimum conditions which produce the largest lignin removal (79%) was obtained at 11% sodium hydrogen sulfite and 170ºC. Characteristics of high content cellulosic products from this stage is a cellulose powder with content of 80% cellulose, 3% hemicellulose and 10% lignin. © 2015, Sphinx Knowledge House. All rights reserved.


Poespowati T.,National Institute of Technology Malang | Mahmudi A.,National Institute of Technology Malang | Dewi R.K.,National Institute of Technology Malang
International Journal of ChemTech Research | Year: 2015

The world's global concerns about the availability of energy sourced from nonrenewable materials will create another predicament if it does not immediately find a way out. As a solution, a renewable energy source derived from green algae Ulva lactuca can put into consideration, as its carbohydrate content allows it to be converted into bioethanol. This algae is widely available along the South Coast of Java Sea that has not been extensively used. The method used is to perform a pre-treatment processes (acid hydrolysis and enzyme hydrolysis), microbial fermentation using yeast or Saccharomyces and distillation process at a temperature slightly above the boiling temperature of ethanol. The study was conducted with variations of Sulphuric Acid concentration, the amount of enzymes and the types of enzymes that are used during the hydrolysis process. The results indicate that the highest levels of ethanol in the amount of 7.706273% V/V is by using sulphuric acid of 2% with 10 drops of beta-amylase enzyme. Although the level of Ethanol produced is not high, but there is a positive possibility to expand the bioethanol conversion technologies using the macro-algae Ulva lactuca. © 2015, Sphinx Knowledge House. All rights reserved.


Muyassaroh,National Institute of Technology Malang | Daryono E.D.,National Institute of Technology Malang | Hudha M.I.,National Institute of Technology Malang
International Journal of ChemTech Research | Year: 2016

Essential oil, also known as ethereal oil or volatile oil is widely needed in daily life. A kind of essential oil is patchouli oil. In the international trade market, patchouli is traded in the form of oil and known as “patchouli oil”. Amongst various essential oils in Indonesia, patchouli oil is being a belle. Every year, more than 45% of foreign exchange gained from essential oils is from patchouli oil. In the term of patchouli oil, Indonesia plays a quiet significant role, approximately 90% of world’s demands for patchouli oil is met by Indonesia. This study was aimed at knowing how to treat the material and find out the appropriate distillation pressure to generate patchouli oil containing high patchouli alcohol and high yield. The method used was steam distillation which spent 6 hours long, with the operational pressure of 0, 1; 0, 2; 0, 3; 0, 4; 0, 5 kg/cm2, using patchouli leaves with three treatments are fresh leaves, aerated leaves and burned leaves in the oven. This study’s results concluded that: the best result was obtained from the burned leaves in the oven where the pressure was 0. 4 kg/cm2, yield 2%, containing patchouli alcohol 40. 06% and specific gravity was 0. 961. The treatment to materials and stem pressure are not significantly affecting the specific gravity of essential oil. The organoleptic test results showed that it produced various colors from light yellow until tawny and all of them have the typical smell of patchouli oil. © 2016 Sphinx Knowledge House. All right reserved.


Soetedjo A.,National Institute of Technology Malang | Nakhoda Y.I.,National Institute of Technology Malang | Lomi A.,National Institute of Technology Malang | Farhan,National Institute of Technology Malang
Telkomnika (Telecommunication Computing Electronics and Control) | Year: 2014

This paper presents the implementation of Web-SCADA on the hybrid wind-PV power system. Both the electrical paramaters such as current, voltage, power and the environment parameters such as wind speed, solar irradiation, and PV temperature are monitored remotely via Internet using a web browser. The SCADA system allows the user to control the hybrid power system remotely. The low cost sensor systems, RTUs and PLC are developed for implementing the SCADA system. The IntegraXor SCADA is employed as the Web-SCADA software. It provides the easy way for developing the Web-based SCADA application. The experimental results show that the Web-SCADA works properly in the monitoring and controlling the hybrid power system. The developed sensor systems provides the average error of 2.87%. The developed RTUs are able to acquire the sensor data and communicate with the SCADA server in real-time.


Daryono E.D.,National Institute of Technology Malang
International Journal of ChemTech Research | Year: 2015

The purpose of this research was to assess the effectiveness of the use of co-solvent n-hexane for in situ transesterification reaction mahogany seed oil as a biodiesel. Variables and operating conditions include catalyst KOH 0. 075 mol/L, stirring speed of 600 rpm, 40oC the reaction temperature, % FFA oil is 1, 42%, moisture content seed of 0. 8%, reaction time is 2, 4, 6, 8 and 10 hours and the mass ratio of seedl:methanol:n-hexane is 1:3:2, 1:3:3 and 1:3:4. Mahogany seeds that have been dried and pulverized size +20/-30 mesh as much as 50 grams included in the three-neck flask equipped condenser and added methanol, n-hexane and catalyst KOH and the reaction carried out in accordance with the variables and operating conditions. After the reaction is complete, the filtrate and cake was separated. To stopped the reaction with neutralized the KOH catalyst with added HCl 1 mol/L to pH 4. The filtrate distilled at a temperature of 70°C and the residue distilled included in the separating funnel and allowed to stand for 12 hours in order to form two layers. From the research data obtained the best results at a mass ratio of seed:methanol:n-hexane is 1:3:4. and reaction time 4 hours with yield methyl esters of 88. 18%. Methyl ester density 0. 8791 g/cm3 meet SNI 04-7182-2006 from 0. 85 to 0. 89 g/cm3. © 2015, International Journal of ChemTech Research. All right reserved.

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