Browsing by Author "Martoni"

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    ANALYSIS OF THE EFFECT OF FUEL SYSTEM, FUEL TYPES AND SPARK PLUG TYPES ON CO2 GAS EXHAUST USING FACTORIAL DESIGN
    (International Journal of Psychosocial Rehabilitation, Vol.24, Issue 02, 2020) Komarudin, Udin; Suryaman, Nia Nuraeni; Martoni; Hirary, Marisa
    The vehicle combustion system, the type of fuel used and the type of spark plugs, are some of the variables that affect motor vehicle exhaust gases. Some exhaust gases (pollutants) by motorized vehicles include Carbon Dioxide (CO2), Carbon Monoxide (CO), Sulfur Dioxide (SO2), Nitrogen Monoxide (NOx), Hydrocarbon (HC), and Lead, smoke and ash, where Exhaust gas can pollute the air and greatly affect human health. From a number of variables that influence motorized exhaust gas, the author determines the combustion system variable, namely the Carburetors and EFI types, the fuel variable type is Premium (octane 88) and Pertamax (octane 92), as well as the spark plug type variable and Iridium spark plugs, as variables main effect to analyze CO2 exhaust gas. The motorized vehicle used as a trial is a 4-step duck motorcycle, 110 cc. The test equipment used to analyze exhaust gas is the Kane Gas Analyzer (Class1). The research method used is factorial design and variable analysis using Yates' Algorithm, the same as in the previous experiment [1]. Yates’s Algorithm Analysis results that the effect of CO2 exhaust is the greatest due to the fuel system of 1.117 (EFI), the second effect is the type of fuel of 0.450 (Pertamax), and the third effect is the type of spark plug of -0.050 (standard spark plug).
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    DESIGNING APPLICATION OF AUGMENTED REALITY INTRODUCTION OF HINDU-BUDDHA TEMPLE FOR ELEMENTARY SCHOOL (CASE STUDY: PISANGAN SDN 01 MORNING)
    (International Journal of Psychosocial Rehabilitation, Vol.24, Issue 01, 2020) Sandfreni; Wijaya, Aurelia; Yulfitri, Alivia; Martoni
    Monotony in learning is one type of difficulty that often occurs in students, in another sense, the importance of variations in conveying lessons. Learning applied to primary schools usually uses a printed book, teacher's explanation, and field practice. To overcome this, a learning aid was created about Hindu-Buddhist temple culture by utilizing augmented reality technology, where this technology is able to present educational information to the real world. Augmented reality technology in the world of education provides a great opportunity to improve user satisfaction and experience. Augmented reality technology combines objects in the real world with virtual objects. The output of the application displays 3D images with audio and visuals. Make it easy for students and instructors to use the application
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    DETERMINATION OF PRIORITY SCALE PROVINCIAL ROAD HANDLING IN PURWAKARTA DISTRICT, WEST JAVA
    (International Journal of Engineering & Technology, 2019) Setiawan, Asep; Barnadi, Yudi; Hirary, Marisa; Martoni
    The provincial roads maintenance and repair are often constrained by limited budgets, so that the road management priority is generally determined by policy factors, which often cause roads treatment disparity. The purpose of this study was to determine the criteria and sub-criteria, the weights of criteria and sub-criteria, as well as develop a mathematical equation in order to determine to roads handling priority in the area of Purwakarta, West Java. The Delphi and Cut Off Point methods were applied to determine the criteria, which result in three criteria selected i.e. road condition, traffic volume and economic factors respectively. Afterward, the Analytical Hierarchy Process was used to determine the weighting factors for the criteria and sub-criteria. The results for the criteria weights were as follows: the roads conditions had a weighting factor of 67.7%, the traffic volume of 18.3% and the economy of 13.0%. Based on the criteria and subcriteria weight, a mathematical equation was developed to define the handling priority of roads in Purwakarta.
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    RESEARCH THE EFFECT OF SARSING MEDIA COMPOSITION ON FILTERED WATER QUALITY
    (Solid State Technology Volume: 63 Issue: 3, 2020) Martoni
    Research / experimental studies to determine the effect of filter media on the quality of filtered water. The filter media used are zeolite and activated charcoal. Experiments were carried out to obtain good water quality with the variables chosen were the ratio of the composition of the filter media, namely zeolite and activated charcoal (R (%)), valve opening (Q (rotation)) and media volume (V (m)). The three parameters are dependent variables that will be tested for their effect on the quality of the water from the filtering process. From the test results, it will be found which variables have the most influence on the quality of the filtered water. To determine the quality of filtered water, mix one teaspoon of diluted PAC powder for one liter of filtered water, and leave it for 15 minutes so that the dirt is bound by the PAC and floats on the surface of the water, then the thickness is measured. The thinner the dirt that floats, the better the water quality. The experimental results show that the most influential variable is the ratio of filter media with a thickness of dirt - 0.025 cm and a discharge with a thickness of 0.625 cm of dirt.
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    Restoration of The Bojongsoang Lake Oxbow Function In Citarum River
    (International Journal of Psychosocial Rehabilitation, Vol.24, Issue 02, 2020) Prasetya, Adhita; Komarudin, Udin; Martoni
    Citarum River as an infrastructure has a function to distribute water has several limitations, one of which is the ability of the river to accommodate rainwater that occurs in the watershed. River alignment activities undertaken by the government in the 80's, produced an abundant oxbow lake in the Citarum river. And based on data from Balai Besar Wilayah Sungai Citarum, it is estimated that 1.5 million m3 of water can be accommodated by oxbow lake or equivalent to the construction of 1 dam. Lack of maintenance and concern of stakeholders resulted in the oxbow lake not being able to function as expected. The objective of this paper is to present the results of oxbow lake dredging activities as an effort to reduce the impact of floods in Upper Citarum and utilization of oxbow lake for various purposes, such as education, recreation, protection of state assets and conservation.