• English Language & Literature Teaching
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• v.10 no.2
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• pp.89-111
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• 2004

The purpose of this article is to study the effect of finger play teaching method on the reproduction of children's English words. The hypotheses are as follows: 1) there will be the difference of the reproduction of children's English words between the experimental group(that is taught by finger play teaching method) and the controlled group (that is taught by only oral teaching method). 2) there will be the difference of children's retention capacity of reproducing English words between the experimental group and the controlled group, The researcher made the time series data The measure tool was the check list for reproduction test of children's English words that was made by Run-Soon Oh and J. Eden(2004). The researcher analyzed the data using the Repeated Measures ANOVA and the Analysis of Covariance. The findings of research are as follows: 1) the more the frequency of teaching increases, the more there are the difference of reproducing English words according to frequencies and groups. The reproduction capacity of the experimental group is better than that of the controlled group. A degree of statistical significance is p<.001. 2) The difference of retention capacity of reproducing English words between the experimental group and the controlled group is a statistical significant, p<.05. The experimental group is better than the controlled group.

• Korean Journal of Computational Design and Engineering
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• v.17 no.4
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• pp.274-281
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• 2012

This paper proposed a control simulation method for design and verification of the transport system in an automobile assembly line based on digital manufacturing system. The design of the transport system involves two major activities: mechanical design (device specification) and electrical design (device behavior and system control). Conventionally, the simulation and emulation system of the transport system focuses on the abstract level, which mainly deals with design verification, alternative comparison, and system diagnosis. Although it can provide overall system visibility in monitoring how well it works in the process and view, its simulation models are not sufficiently realistic to be used for a detailed design or for implementation purposes. In this paper, a digital simulation model for a transport system in an automotive assembly line is constructed by adapting a digital manufacturing methodology. We use the concept of the "Virtual Probe", which transport a carrier instead of the belt of the conveyor. In conclusion, the proposed method is valuable in the process of test run in the shop floor. This method would reduce the time and effort for validating the manufacturing system and improve the productivity and integrity of the control program.

• Journal of Korean Academy of Nursing Administration
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• v.12 no.3
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• pp.365-372
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• 2006

Purpose: OSCE, Objective Structured Clinical Examination, is a good way to evaluate clinical skills of nursing students. To do this, we need modules, evaluators, persons to run the examination, as well as models and standardized patients if necessary. Author coached nursing students to develop modules and ran the examination by themselves. Method: 24 third-year and 4 first-year students volunteered; third-year students developed 5 modules, and organized and ran the examination. First-year students played patient role. 60 2nd-year students participated as examinees. Modules were duplicated to finish examination in a given time. The relationship between OSCE score, conventional clinical evaluation score and credit of students was compared. Effect of module duplication on score was tested. And responses of examinees were collected. Results: There was no correlation between OSCE and conventional clinical evaluation score (r=0.07), and credit (r=0.27), And there was no difference of OSCE score between duplicated modules $(53.77{\pm}7.61$ vs $55.33\pm7.74).$ Response of examinees to OSCE was favorable. Examinee did not expressed resistance for the evaluation by OSCE developed and ran by students. Conclusion: Nursing students successfully developed and ran OSCE, which was accepted favorably by examinees. Student-developed OSCE may play a role in evaluation of clinical performance.

• Magazine of the Korean Society of Agricultural Engineers
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• v.37 no.2
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• pp.31-40
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• 1995

This study was conducted to get best fitting frequency distribution for the annual run- off and to simulate long series of annual flows by single-season first order Markov Model with comparison of statistical parameters which were derived from observed and synthetic flows at four watersheds in Seom Jin and Yeong San river systems. The results summarized through this study are as follows. 1. Hydrologic persistence of observed flows was acknowledged by the correlogram analysis. 2. A normal distribution of the annual runoff for the applied watersheds was confirmed as the best one among others by Kolmogorov-Smirnov test. 3. Statistical parameters were calculated from synthetic flows simulated by normal dis- tribution. In was confirmed that mean and standard deviation of simulated flows are much closer to those of observed data than except coefficient of skewness. 4. Hydrologic persistence between observed flows and synthetic flows simulated was also confirmed by the correlogram analysis. 5. It is to be desired that generation technique of synthetic flow in this study would be compared with other simulation techniques for the objective time series.

• Journal of the korean Society of Automotive Engineers
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• v.10 no.6
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• pp.72-84
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• 1988

Engine performance is one of the main objectives specified at the beginning of a new engine design project. The cycle simulation for SI engine is based on the zero-dimensional gas exchange model and a heat release expression by Viebe. This program also requires minimum input data and takes only a short time to run. Heat transfer from cylinder transfer formula. The flow coefficient (effective area) is calculated from valve lift using the standard flow coefficient curve and engine friction is calculated from the Millington and Hartles' engine friction formula. The chemical species considered in burned gas are 6 species CO, CO, H$_{2}$, H$_{2}$O, $O_{2}$, N$_{2}$ and the cylinder pressure, homogeneous cylinder temperature, gas composition and burned fraction are calculated at each crank angle through the cycle. To check the validity and accuracy, experimental study was done with 3 engines for measuring cylinder pressure, indicated mean effective pressure, brake mean effective pressure and air flow rate, etc. Despite its simple assumptions, cycle simulation showes excellent breathing and performance correlation when compared with data of tested engines, and have been proved useful in engine design.

• ETRI Journal
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• v.31 no.6
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• pp.732-740
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• 2009

This paper describes the implementation of a digital audio effect system-on-a-chip (SoC), which integrates an embedded digital signal processor (DSP) core, audio codec intellectual property, a number of peripheral blocks, and various audio effect algorithms. The audio effect SoC is developed using a software and hardware co-design method. In the design of the SoC, the embedded DSP and some dedicated hardware blocks are developed as a hardware design, while the audio effect algorithms are realized using a software centric method. Most of the audio effect algorithms are implemented using a C code with primitive functions that run on the embedded DSP, while the equalization effect, which requires a large amount of computation, is implemented using a dedicated hardware block with high flexibility. For the optimized implementation of audio effects, we exploit the primitive functions of the embedded DSP compiler, which is a very efficient way to reduce the code size and computation. The audio effect SoC was fabricated using a 0.18 ${\mu}m$ CMOS process and evaluated successfully on a real-time test board.

• The Journal of Asian Finance, Economics and Business
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• v.8 no.12
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• pp.271-282
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• 2021

In recent years, a significant number of empirical studies have examined the relationship between export and economic growth in India. However, this study analyses the relationship between exports and economic growth through the time series model. The main aim of this study is to investigate the causal relationship between exports and economic growth in India. The VAR model was used for the period 1961 to 2015 after verifying the stationarity of the variables through using Augmented Dickey-Fuller and Phillip-Perron tests. The Indian export sector has been found to have a significant and positive impact on economic growth and other long-term economic activities. The study also employed the Granger causality test to check the direction of causality and found that RXGS, RGDP, RPFC, and RGFC had a unidirectional relationship and RXGS and RMGS had a bidirectional relationship in long run. Also, the findings of this study suggest that a steady-state between exports and economic growth can be achieved in India over a long period. The overall outcome of this study provides a testimony of the fact that the export sector plays a vital role in economic growth in India and also leads to the long-term growth of other economic activities.

• Korean Journal of Childcare and Education
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• v.15 no.3
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• pp.135-155
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• 2019

Objective: The purpose of this study was to develop and examine the effects an of educational drama program for promoting a sense of community on young children's community life skills. Methods: The program organized activities to achieve a sense of community. Community life skill, a behavioral skill that is the basis for developing a sense of community, was naturally reflected in the activities. The program was designed to run a total of 15 sessions twice a week for 60 minutes each time. The participants were five-year-olds, 27 in the experimental group and 26 in the control group. In order to examine the effects of the program, a sense of community and community life skills were measured and the data were analyzed with T-test. Results: The results are summarized as follows: first, the program had positive effects on emotional consciousness and mutual public consciousness of sense of community; second, community life skills were improved through this program. Conclusion/Implications: Based on these results, the effectiveness of the educational drama program for promoting young children's sense of community and the ways to promote children's sense of community in early childhood education institutes were discussed.

• The Journal of Asian Finance, Economics and Business
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• v.8 no.9
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• pp.1-9
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• 2021

This study aimed to investigate the existence of the Feldstein-Horioka (1980) puzzle in international macroeconomics by applying the conditional Autoregressive Distributed Lag (ARDL) model to examine the long-run relationship between national savings and investments in Thailand and China. The input of this study relied on annual national savings and investments as a fraction of GDP during 1980-2019 which was collected from China National Bureau of Statistics (NBS) and Thailand National Economic and Social Development Council (NESDC). Hypothetically, Augmented Dickey-Fuller (ADF) and Phillips-Perron (PP) unit root tests were applied to test the stationary properties and to investigate the integration level of selected time series. The empirical results, confirmed by cumulative sum (CUSUM) and cumulative sum square (CUSUMSQ), maintained no serial correlation and structural break problems. The finding of this study suggested that the Feldstein-Horioka puzzle in Thailand did not exist significantly. Thailand's national savings and investments nexus was independent, following the classic economic idea that financial liberalization, or perfect capital mobility, allowed national savings and investments to flow freely to countries with better interest rates. Whereas, a strong significant correlation was found in the case of China during the fixed exchange rate regime switching in 1994 and post WTO participation after 2001-2019.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.31 no.4
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• pp.753-762
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• 2021

WebAssembly(WASM) is a low-level instruction format that can be run in a web environment. Since WASM has a excellent performance, various web applications use webassembly. However, according to our security analysis WASM has a security pitfall related to control flow integrity (CFI) for indirect calls. To address the problem in this paper we propose a new code instrumentation scheme to protect indirect calls, named WACFI. Specifically WACFI enhances a CFI technique for indirect call in WASM based on source code anlysis and binary instrumentation. To test the feasibility of WACFI, we applied WACFI to a sound-encoding application. According to our experimental results WACFI only adds 2.75% overhead on the execution time while protecting indirect calls safely.