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Search Results: 1 - 10 of 1645 matches for " Tae-In Ohm "
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Experimental Study of the Fry-Drying Phenomena of Organic Wastes in Hot Oil for Waste-Derived Solid Fuel  [PDF]
Tae-In Ohm, Jong-Seung Chae, Seung-Hyun Moon
Journal of Environmental Protection (JEP) , 2014, DOI: 10.4236/jep.2014.57065

In sludge treatment, drying sludge using typical technology with high water content to a water content of approximately 10% is always difficult because of adhesive characteristics of sludge in drying. Many methods have been applied, including direct and indirect heat drying, but these approaches of reducing water content to below 40% after drying are very inefficient in energy utilization of drying sludge. In this study, fry-drying technology with a high heat transfer coefficient of approximately 500 W/m2·°C was used to dry swine excreta, sewage and industrial sludge. Also waste oil was used in the fry-drying process, and because the oil’s boiling point is between 240°C and 340°C and the specific heat is approximately 60% of that of water. In the fry-drying system, the sludge is input by molding it into a designated form after heating the waste oil at temperatures between 130°C and 150°C. At these temperatures, the heated oil rapidly evaporates the water contained in the sludge, leaving the oil itself. After approximately 8 - 10 min, the water content of the sludge was less than 10%, and its heating value surpassed 20,000 kJ/kg. Indeed, this makes the organic sludge appropriate for use as a solid fuel. The dried swine excreta, sewage and industrial sludge can be used in an incinerator like low-rank coal or solid fuel.

Characterization of Material Parameters
S. M. Humayun Kabir,Tae-In Yeo,Sang-Ho Kim
Lecture Notes in Engineering and Computer Science , 2009,
γ-rays from starburst galaxies
Stefan Ohm
Physics , 2012, DOI: 10.1063/1.4772221
Abstract: In this paper the current status of \gamma-ray observations of starburst galaxies from hundreds of MeV up to TeV energies with space-based instruments and ground-based Imaging Atmospheric Cherenkov Telescopes (IACTs) is summarised. The properties of the high-energy (HE; 100 MeV < E < 100 GeV) and very-high-energy (VHE; E > 100 GeV) emission of the archetypical starburst galaxies M 82 and NGC 253 are discussed and put into context with the HE \gamma-ray emission detected from other galaxies that show enhanced star-formation activity such as NGC 4945 and NGC 1068. Finally, prospects to study the star-formation - \gamma-ray emission connection from Galactic systems to entire galaxies with the forthcoming Cherenkov Telescope Array (CTA) are outlined.
Motivation Strategy Using Gamification  [PDF]
Tae Matsumoto
Creative Education (CE) , 2016, DOI: 10.4236/ce.2016.710153
Abstract: The number of university students’ dropouts is increasing rapidly these days in Japan. One of the possible causes is some kinds of problems relating to economic reasons. The other reason, there is a marked decline in the students’ scholastic performance. They are not able to keep up with class work at school. Our recent studies have focused on e-Learning support methods using the Gamification. It is one form of the above game-informed education. So far, we have seen that the student can use the Internet pleasantly and very interestingly. In this paper, we propose the flipped class- room design method using the Gamification. The flipped classroom is at the center of this discus- sion. It is an inverted version of the traditional learning model. It is a new pedagogical method. It is becoming increasingly well known around the University education in Japan. This concept has been put to use in several different fields, one such field being education. It is a type of blended learning. In order to discuss the pros and cons of gamification of education, the authors conducted an experiment and questionnaire using e-Learning with gamification elements for English as foreign language education. The results of this study particularly highlighted the importance of well-designed tutorial, task, interface and feedback for the effective game-based e-Learning. Therefore, “flipped classroom based on gamification” is helpful in improving learners’ understanding level and motivation.
The Flipped Classroom Experience of Gamified  [PDF]
Tae Matsumoto
Creative Education (CE) , 2016, DOI: 10.4236/ce.2016.710152
Abstract: There has recently been growing interest in the area of gamification, the application of game elements to non-game contexts. This concept has been put to use in several different fields, one such field being education. What is good about game-informed learning is that when conditions are satisfied, learners can enhance their intrinsic motivation towards goal achievement. For the purpose of the study, two types of discussion were utilized: gamification and flipped classroom. The flipped classroom used technology to access the lecture and other instructional resources outside the class- room. This paper proposes the flipped classroom support methods using the Gamification. In order to discuss the pros and cons of gamification of education, the authors conducted an experiment and questionnaire using flipped classroom with gamification elements for English as foreign language education. The results of this study particularly highlighted the importance of well-de- signed tutorial, task, interface and feedback for the effective game-based e-learning. It is an inverted version of the traditional learning model.
Accurate Power Estimation for Sequential CMOS Circuits Using Graph-based Methods
Miriam Leeser,Valerie Ohm
VLSI Design , 2001, DOI: 10.1155/2001/73872
Abstract: We present a novel method for estimating the power of sequential CMOS circuits. Symbolic probabilistic power estimation with an enumerated state space is used to estimate the average power switched by the circuit. This approach is more accurate than simulation based methods. Automatic circuit partitioning and state space exploration provide improvements in run-time and storage requirements over existing approaches. Circuits are automatically partitioned to improve the execution time and to allow larger circuits to be processed. Spatial correlation is dealt with by minimizing the cutset between partitions which tends to keep areas of reconvergent fanout in the same partition. Circuit partitions can be recombined using our combinational estimation methods which allow the exploitation of knowledge of probabilities of the circuit inputs. We enumerate the state transition graph (STG) incrementally using state space exploration methods developed for formal verification. Portions of the STG are generated on an as-needed basis, and thrown away after they are processed. BDDs are used to compactly represent similar states. This saves significant space in the storage of the STG. Our results show that modeling the state space is imperative for accurate power estimation of sequential circuits, partitioning saves time, and incremental state space exploration saves storage space. This allows us to process larger circuits than would otherwise be possible
Danish biobank legislation, a simple approach?
Kirsten Ohm Kyvik
Norsk Epidemiologi , 2012,
Abstract: -
Trading Signal Generation Using A Combination of Chart Patterns and Indicators
Chalothon Chootong,Ohm Sornil
International Journal of Computer Science Issues , 2012,
Abstract: Chart patterns and indicators are popular technical tools for making investment decisions. This article presents a trading strategy combining price movement patterns, candlestick chart patterns, and trading indicators, including Moving Average, Exponential Moving Average, Bollinger Bands, On Balance Volume, Relative Strength Index, Moving Average Convergence Divergence, and Stochastic Oscillator, with the aim to increase the return on investment. A neural network ensemble is employed to determine buy and sell signals on the next trading day. Experimental results, using stocks from five different industries in Stock Exchange of Thailand, show that the proposed strategy yields higher returns than do traditional technical trading methods
The ATLAS beam pick-up based timing system
C. Ohm,T. Pauly
Physics , 2009, DOI: 10.1016/j.nima.2010.03.069
Abstract: The ATLAS BPTX stations are comprised of electrostatic button pick-up detectors, located 175 m away along the beam pipe on both sides of ATLAS. The pick-ups are installed as a part of the LHC beam instrumentation and used by ATLAS for timing purposes. The usage of the BPTX signals in ATLAS is twofold: they are used both in the trigger system and for LHC beam monitoring. The BPTX signals are discriminated with a constant-fraction discriminator to provide a Level-1 trigger when a bunch passes through ATLAS. Furthermore, the BPTX detectors are used by a stand-alone monitoring system for the LHC bunches and timing signals. The BPTX monitoring system measures the phase between collisions and clock with a precision better than 100 ps in order to guarantee a stable phase relationship for optimal signal sampling in the subdetector front-end electronics. In addition to monitoring this phase, the properties of the individual bunches are measured and the structure of the beams is determined. On September 10, 2008, the first LHC beams reached the ATLAS experiment. During this period with beam, the ATLAS BPTX system was used extensively to time in the read-out of the sub-detectors. In this paper, we present the performance of the BPTX system and its measurements of the first LHC beams.
Searches for long-lived charged particles with the ATLAS experiment
Christian Ohm,for the ATLAS Collaboration
Physics , 2011,
Abstract: These conference proceedings for PLHC 2011 in Perugia, Italy summarize the results from two searches for long-lived charged particles using 34-37 pb-1. The searches are based on direct detection and exploits ionization energy loss and time-of-flight measurements to separate slow-moving signal particles from the Standard Model backgrounds. The observations are in all cases consistent with the background-only hypotheses and limits are presented for long-lived squarks, gluinos and sleptons.
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