• Therapeutic Science for Rehabilitation
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• v.3 no.2
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• pp.83-89
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• 2014

Objective : This study aims to investigate the effect of half- eyes patching for the reduction of unilateral neglect of left-side hemiplegia. Methods : This study used the ABA design. He was required to wear the half- eyes patching during all the period of ADL because unilateral neglect causes many problems in the majority of ADL. The assessments for the unilateral neglect had been performed by the Line bisection and the Albert test once a session (day). Results : Regarding the Means of the errors to the Line bisection and the Albert test, the Means of the errors was not decreased during the period of the intervention (B) and was not decreased after the withdrawal (A'). Conclusions : Half-eyes patching was non-effective to r e lease the unilateral neglect. Further study is necessary to increase the sample size and the duration of experiments.

• Journal of Agricultural Extension & Community Development
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• v.17 no.1
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• pp.75-101
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• 2010

This study tried to analyze the learning effectiveness of multi-media based class by comparing with traditional classroom method. The "Basic Agricultural Technology" course that is one of the required courses of agricultural high school was selected and its contents were digitalized on MS Powerpoint for multi-media based class. The thirty students were sampled for each experimental and control groups. The homogeneity and learning achievement of sample groups were tested for experiment. Same teacher took the classes of two groups and delivered same contents of course. Only difference between two groups was the delivery method, one is traditional classroom teaching method and the other was the multi-media based class. The learning achievements and satisfaction of sample were post-tested in order to analyze the learning effectiveness by comparing two teaching methods. The results showed that there was a significant difference between experimental and control group in learning achievement after ANCOVA controlled pre-test as covariance(F=5.08, p<.05). It means that the learning achievement of multi-media based class was higher than that of traditional classroom group. The results also showed that a significant difference in students’ satisfaction between two groups (t=5.57, p<.001). This study concluded that using multi-media in class could produce more learning achievements and satisfaction of students than traditional classroom method.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.31 no.11C
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• pp.1071-1076
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• 2006

In this paper, we develop face and hand tracking for sign language recognition system. The system is divided into two stages; the initial and tracking stages. In initial stage, we use the skin feature to localize face and hands of signer. The ellipse model on CbCr space is constructed and used to detect skin color. After the skin regions have been segmented, face and hand blobs are defined by using size and facial feature with the assumption that the movement of face is less than that of hands in this signing scenario. In tracking stage, the motion estimation is applied only hand blobs, in which first and second derivative are used to compute the position of prediction of hands. We observed that there are errors in the value of tracking position between two consecutive frames in which velocity has changed abruptly. To improve the tracking performance, our proposed algorithm compensates the error of tracking position by using adaptive search area to re-compute the hand blobs. The experimental results indicate that our proposed method is able to decrease the prediction error up to 96.87% with negligible increase in computational complexity of up to 4%.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.35 no.8C
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• pp.667-679
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• 2010

The use of femtocells in buildings and homes has been widely studied as a means to enlarge the cell coverage and increase the network capacity of mobile communication systems. Femtocells for Mobile WiMAX (M-WiMAX) using time division duplexing (TDD) requires frame synchronization with neighboring base stations to avoid interference between uplink and downlink signals. In this paper, we propose a new frame synchronization method for femtocell using IEEE 802.11 based wireless backhaul, which transfers the time information of mobile network to femtocells via the beacon signal provided by IEEE 802.11. Also, in order to reduce timing error of the proposed method, we modify the collision avoidance scheme in the transmitter of IEEE 802.11 and apply a timing estimation technique designed in the sense of least squares to the receiver of IEEE 802.11. Through computer simulations using the proposed scheme, we evaluate the performance of frame synchronization for femtocells and show that the recovered timing information satisfies the timing specification defined by M-WiMAX standard.

• The Journal of Internal Korean Medicine
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• v.31 no.2
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• pp.331-345
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• 2010

Objectives : This study was designed to investigate the effects of Saenggantanggami-bang (SG) on nonalcoholic fatty liver disease. Methods : HepG2 cells were used in an in vitro model. HepG2 cells were divided into three groups. The Normal group was incubated with no fatty acid. The Control group was incubated with 1mM palmitic acid to introduce fat overloading. The PA-SG group was incubated with 1mM palmitic acid and various concentrations of Saenggantanggami-bang (SG). Cell viability and cytotoxicity were analyzed by MTT assay and LDH assay. Intracellular triglyceride (TG) levels, reactive oxygen species (ROS) levels, ATP amount, and GST activity were measured. Cell death pattern and protective effect of SG on cell death were studied by DNA fragmentation and caspase-3 intensity (western blot). Results : Compared with the Control group, cell viability of the PA-SG group significantly increased (P<0.01), cytotoxicity of the PA-SG group decreased (P<0.01), and intracellular TG levels and ROS levels of the PA-SG group decreased (P<0.05). In DNA fragmentation assay, necrotic pattern was observed and DNA fragment decreased in the PA-SG group. In western blot, apoptotic pattern was observed, caspase-3 intensity of the PA-SG group was reduced significantly, but there were no significant differences in intracellular ATP amount and GST activity between the control group and the PA-SG group. Conclusion : The results suggest that Saenggantanggami-bang can be a potential candidate for the clinical treatment of nonalcoholic fatty liver disease.

• Food Science and Preservation
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• v.12 no.1
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• pp.23-27
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• 2005

Yolk index (In, Haugh unit (BU) and weight loss of quail egg were measured to evaluate the effect of composite film (SPI/corn starch). Also, the effect of composite film was investigated to extend the shelf-life of sandwich foods. The quality characteristics of sandwich food was measured by the weight increment The weight reduction ratio for quail egg coated with composite film showed $8\%$ increment after 20 day storage. Yolk index and Haugh unit were significantly different between the uncoated and coated quail eggs with composite film solution. Sandwich coated with composite film showed the less weight increase for 12 hour storage compared to controls.

• Proceedings of the Korean Society of Propulsion Engineers Conference
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• 2017.05a
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• pp.933-935
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• 2017

This paper deals with the influence of fungi for the thermal protective cork-based exterior insulator which protect a missile system from aerodynamic loads and heating during flight of missile. We consider the adhesion of cork-based composite on the composite motor case which fabricated by filament winding process. We also consider the importance of the requirement analysis for effective, successful system development under given system conditions. In order to develop the basic requirement analysis for the thermal protective cork-based exterior insulator, an experimental requirement analysis was accomplished, and some experimental comparing results, the study for preventing fungi are presented.

• Journal of Digital Convergence
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• v.19 no.4
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• pp.159-166
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• 2021

This study was an attempt to develop a multidrug resistant organisms infection control simulation program for nurses at small and medium sized hospitals and to evaluate the effectiveness of said simulation program. This is a single-group, pre-post experimental design study conducted on 33 nurses working at small and medium sized hospitals. Data obtained were analyzed using the IBM SPSS 21.0 program, along with the use of descriptive statistics and paired t-test. Regarding the results of the study, multdrug resistant organisms infecion control knowledge(t=-10.764, p<.001)and performance levels(t=-4.215, p<.001) of the nurses displayed statistically significant increases following application of the simulation program. There is a need for the development of more diversified simulation programs in the future since the improvement in the infection control knowledge and performance levels of nurses is important to block the spread of multidrug resistant organisms and prevent infection outbreak thereof with medical institutions.

• Journal of the Society of Disaster Information
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• v.14 no.1
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• pp.89-100
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• 2018

when the explosive wastes to be treated as designated wastes are brought into the wastes treatment plant by mistake and lead to an explosion in the wastes disposal process, many people and property damage are involved. Waste should be treated properly. As mentioned in this paper, ignition reac- tion tests of ignitable re-burning of explosives packing material waste (solid butadiene) confirmed that ignition was easily occurred, and that even small ignition sources were easily ignited and burned quickly and explosively. In particular, when explosives are loaded into incineration wastes in large quantities and mixed with organic compound wastes, such as fire and explosion accidents caused by explosives packing materials at waste disposal sites, flammable and oxidative gases are generated due to mutual oxidation and pyrolysis It is confirmed that there is a possibility that ignition sources such as spark ignite and instantaneously lead to explosion. It is hoped that this study will be a small reference for on - site detection in the field of fire, and it is expected that the fire - fighting agency will be recognized as a fire investigation agency and will contribute to the improvement of the credibility.

• Journal of environmental and Sanitary engineering
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• v.1 no.1 s.1
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• pp.69-79
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• 1986

This studies were carried out to investigate the high infection sites from various specimens, cultural isolation on the susceptible media and specific antibody titres of M. pulmonis in experimental 310 mice and 330 rats obtained from two breeding facilities. Efficiency of complement faxation test (CF test) for detection of M. pulmonis antibody in mice and rats were compared directly with the diagnostic cultural isolation method. 1. Isolation rates of M. pulmonis among infection sites were about 30% from the oral cavities and $40\%$ from the middle ear of mice. The rates were $100\%$from the nasal cavaties and $90\%$ from the oral cavities of rats. 2. The infection rates were $12\%$ to A group and $16\%$ to B group of mice. The rates in the rats were $55\%$ to A group and $70\%$ to B group. 3. The M. pulmonis antibody titres by CF test were $73\%$ of total 100 mice in serum dilution below 1:5 (< 1:5), and $24\%$ of total samples in antibody titres above 1:5 (> 1:5), but 3 samples were not showed anticomplementary activities. The antibody titres in rats were $35\%$ of 120 rats in below 1:5 (< 1:5), and $61\%$ of total samples in above 1:5 (> 1:5), but the remained were not showed anticomplementary activities.