427 research outputs found

    Battery energy storage systems

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    Author name used in this publication: D. SutantoVersion of RecordPublishe

    Alternative energy resource from electric transportation

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    Author name used in this publication: Sutanto, DRefereed conference paper2004-2005 > Academic research: refereed > Refereed conference paperVersion of RecordPublishe

    Pengaruh Perubahan Arus Listrik Terhadap Penurunan Kadar Lemak Dan Minyak Dalam Air Limbah Melalui Proses Elektrokoagulasi

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    Based on the Regulation of the Minister of Health of Indonesia No.907/Menkes/SK/VII/2002 mentioned that the security environment for maximum content of heavy metals in waste water are: 0.03 mg / l for copper (Cu), 0.2 mg / l for aluminum (Al), 0.3 mg / l for iron (Fe), 0.1 mg / l for manganese (Mn), 0-200 mg / l for calcium (Ca), 0-150 mg / l for magnesium (Mg ), 200 mg / l for sodium (Na) and 0.5 mg / l for potassium (K) and zero for organic materials.If the content of organic materials in excess of such provision, then the water must be processed to meet the recommended requirements. One way that has been applied in this research is electrocoagulation method. The electrocoagulation process is to remove organic material (liquid), which is one source of odor in water. The research carried out by flowing water of 4.5 liters of industrial waste into the tank electrocoagulation process. The process is run with an electric current 0.05, 0.1 and 0.2 amperes with intervals of 20 minutes for observation data. Analysis of the organic matter content carried out by gravimetry. The residual oil and fat is 0.06 mg/l at 100 minutes and current 0.1 ampere. Based on the results of these studies was the content oils and fats in waste water has met the standard of the Minister of Health of Indonesia. Key words: Organic Pollutants,Electrocoagulation Process, Reduction of Pollutan

    Superconducting magnetic energy storage systems for power system applications

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    Author name used in this publication: D. SutantoAuthor name used in this publication: K. W. E. ChengVersion of RecordPublishe

    Pengembangan Model Assessment for Learning (Afl) Melalui Penilaian Teman Sejawat Pada Pembelajaran Matematika Pada Pokok Bahasan Trigonometri Ditinjau Dari Gaya Belajar Siswa SMA Negeri Karangpandan Tahun Pelajaran 2012/2013

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    The aims of this research were: (1)to determine whether the AfLwith peer assessment of trigonometry topics can be applied in Karangpandan Senior High School, (2) to know which is more effective of the application of the AfL with peer assessment in improving students\u27 achievement compare with direct instruction,(3) to know the influence of students\u27 learning styles toward mathematics learning achievement of students in the trigonometry subject, (4)to determine the effect of the application of the AfL with peer assessment in improving student achievement be compared with direct instruction in terms of students\u27 learning styles on trigonometry subject. The research was dividedi nto two phases, the first phase is the determination of the model development stage and the AfL with peer assessment are included in research and development. In this stage, be done data collection, prototype planning model,Focus Group Discussion (FGD) were implemented and manufacture of prototype model then be tested. Tests carried out by 4 learning cycles.The second phase was to test the effectiveness of a model that includes quasi-experimental research by design research 2×3. The population of this research was eleven grade students of Karang pandan Senior High School of the first semester of the academic year 2012/2013. Samples were divided into two groups,experimental and control groups. The data analysis technique of this research that being used inthis study was unbalanced two-way analysis of variance.Based on the result of the analysis, we can conclude that:(1) the model of the AfL with peer assessment can be applied in Karangpandan Senior High School State. During the implementation of theAfL with peer assessment, the students being involved in learning and assessment learning, so more enjoyable and mathematics achievementof students is also increasing (2)students taught using AfL with peer assessment have mathematics achievement better than students taught using direct instruction, (3) students with kinesthetics learning style have higher mathematics achievement thanstudents with visual and auditory, while students with a visual learning style have a better achievement than students with auditory learning style, (4)at all the kinds of learning styles, students with applied learning AfL with peer assessment have better mathematics achievement than students with direct learning

    Perancangan Interior Surabaya Science Centre

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    During this rapid development era with its huge development. The education and entertainment world also experience those wide range changes. The recent entertaining site provides less focus on the educational facility. Which is then leads to the situation that it is more and more difficult to find educational supportive entertaining site. As one of the major cities in Indonesia, Surabaya lack of attention to the needs of society in the field of education entertainment. “Surabaya Science Centre” Interior design is an education entertainment facility which somehow can help the people to develop better in the field of education. The main facilities such as lobby, ticket area, an areas of biologys, earth and space areas, an area of physics, chemistry area, cinema area, cafe, office, and souvenir shop area provided. The concept of “Imaginative Life” is the description of the life of the imagination game with the aim of being informative, educative, as well as entertaining. Interior design applied in Surabaya Science Centre is created based on a fun atmosphere, colorful and thematic so that visitors can change their mindset from boring science being fun and amazing

    A novel square-wave converter with bidirectional power flow

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    Author name used in this publication: K. W. E. ChengAuthor name used in this publication: D. SutantoVersion of RecordPublishe

    Multiple and fractional voltage conversion ratios for switched-capacitor resonant converters

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    Author name used in this publication: Y. P. B. YeungAuthor name used in this publication: K. W. E. ChengAuthor name used in this publication: D. SutantoPower Electronics Research Centre, Department of Electrical EngineeringRefereed conference paper2000-2001 > Academic research: refereed > Refereed conference paperVersion of RecordPublishe

    Adaptive B-spline network control for three-phase PWM AC-DC voltage source converter

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    Author name used in this publication: D. SutantoVersion of RecordPublishe
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