• The Journal of Internal Korean Medicine
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• v.25 no.4
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• pp.105-116
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• 2004

Objective : In this study, we used the aged bilateral common carotid artery occlusion (BCAO) rats were used to measure the effect of Bupleuri Radix (Si-Ho) on the brain ischemic injury, because aging is an important factor in storke, Method : The brian ischemic injury was induced by temporary closing of carotids on both sides in a low blood pressure state. Bupleuri Radix (Si-Ho) was orally administered in 18-month-old BCAO rats. Result : The Ischemic Damaged Hippocampus and HSP expression were analyzed by the immunohistochemical staining and the result were as follows: 1. The low numbers of pyramid cells in the hippocampus CA1 area for the ischemically injured experimental group rose to numbers simillar to those of the control group. 2. The thin neuronal cell layer in the hippocampus CA1 area for the ischemically injured experimental group returned to thickness simillar to those of the control group. 3. The normalized optical density of HSP70 expression was suppressed in CA2, DG and CA1 expression was significantly suppressed in the experimental group compared to the control group. Conclusion : These results suggested that Bupleuri Radix (Si-Ho) has a neuroprotective effect by reducing neural cell injury in the initial ischemic state.

• The Journal of Korean Academy of Prosthodontics
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• v.32 no.4
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• pp.565-572
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• 1994

According to the classification of dental arch form and the analysis of patterns of chewing movement, the patterns of chewing movement in each group were evaluated and compared with those of the normal group. Results were summarized as follows ; 1. Opening phase in chewing movement In the group which the maxillary second molar positionsbuccal side, the chewing patterns which have the Vertical Guide Openings in frontal plane, the Posterior Guide Openings in hjorizontal plane were observed. In the group which the maxillary premolars position lingual side, the chewing paterns which have the Protrusive Shift Openings in horizontal plane and sagittal plane were observed. 2. Closing phase in chewing movement. In each group except for the normal group, the chewing patterns which have the Concave Closure in frontal plane and in Horizontal plane were observed. In the group which the maxillary premolars position buccal side, the chewing patterns which have the Lateral Guide Closure in frontal plane and in horizontal plane, the Vertical Guide Closre in sagittal plane were observed: From the results, as the characteristics of the dental arch form have appeared in chewing movement, the close relationships were found between dental arch form and chewing movement. It is suggested that the evaluation of dental arch form is effective in the diagnosis of function of stomatognathic system.

• Journal of the Korean Society of Safety
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• v.30 no.4
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• pp.92-98
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• 2015

This paper was carried out to prove the relation between static loads acting on the sluice(hydrostatic) and dynamic loads (additional loads) arising from opening or closing of sluice, through measuring the operation of shell-type roller gate by using the method of measuring of the completely opening water gate, as measured from one excitation state, it was confirmed to be capable of measuring the natural frequency reliable measurement results. Throughout the test, we prove that it's a reasonable way to estimate the default margin of safety when calculated by dividing the sum of the hydrostatic stress to the maximum stress and additional stress. The application of this paper's safety estimation method can be utilized as the basic data for the systematic and rational maintenance management of dams and submerged weirs in the future, and it is expected that this study can bring forth.

• Journal of Internet of Things and Convergence
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• v.6 no.1
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• pp.17-22
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• 2020

This paper is about IoT(Internet of Things)-based smart trash can. In modern society, waste disposal creates several social problems. In particular, large floating populations cause a problem in the city center on weekends as the waste disposal capacity cannot keep up with the amount of waste discharged. There are problems such as stinks, unpleasant aesthetics, and insects caused by overflowing garbage. To solve this problem, a smart trash can was proposed. The proposed smart trash can provide a garbage compression function, an automatic opening and closing of the trash can lid, a display of the amount of garbage, and monitoring and control of the trash can. It is expected that the proposed 'smart trash can' can be usefully used for outdoor waste disposal with a large floating population.

• Journal of the Korea Society of Computer and Information
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• v.3 no.1
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• pp.13-23
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• 1998

We have experienced a great deal of change and development in CTS(Computerized Typesetting System) since the prepress market used the phototypesetting machines. The CTS has so many advantages - the shortening of processing time, the versatility of layout, the easy of changing layout style and the absence of pollutional source- as HT(Hot Plate Type) hasn't. Hut, as newspaper is faced with the new circumstances which is the emergence of competitive media and the expansion of economy theory, etc, the newspaper offices have solved the problems using the reduction and closing down of revision department for economizing expense account, the direct composition by editor this paper describes the vital point for direct composition and the design for the descriptive markup-based CTS.

• Journal of Korean Academy of Nursing
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• v.10 no.1
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• pp.11-19
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• 1980

The purpose of study carried out to determine the effects of antenatal education about the normal course of la-bor in last trimester (pregnancy 36 wks longer ) influencing the State- Anxiety of primigravida. And the relation-ship between primigravia’s general characteristics and State-Anxiety. This study was carried out between May 1. to October 20. 1979. The study sample consisted of 150 primigravidas who visited the out- patient of Department of obstetrics of Ewha Womans University Hospital. The method used for the collection of data were Antenatal Education Curriculum made by researcher and State-Anxiety Inventory. The questionnaire of State Anxiety Inventory is made up 20 items. The data was analysed by computer program. The followings are results. 1. There was shown State-Anxiety to to be alleviated by experimental group than control group. There was significant relation between experimental group and control group. (p< 0.01) 2. Within the experimental group, there was no significant relation to State-Anxiety by age and education level. (p ＞ 0.05) 3. In the investigation sample, according to the primigravida's gestation, there was shown State-Anxiety to be increased by closing to the delivery ( p <0.01). There was no relation of State-Anxiety response by age, education level, religion and acceptance of pregnancy. (p >0.05).

• Journal of the Korean Society of Safety
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• v.23 no.3
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• pp.17-24
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• 2008

Elbows with various shapes of local wall thinning were numerically analyzed by finite element method to get load-displacement curves and the maximum loads. Results were compared with the experimental data obtained by another study. Elastic-plastic analysis were carried out under the combined loading conditions of internal pressure and in-plane bending loads. Two types of bending loads were considered such as elbow opening mode and elbow closing mode. Also, two different wall thinning geometries were modeled. Wall thinning area located extrados or intrados of elbow inner surface was considered. Longitudinal and circumferential lengths of the thinning area and the thinned thickness were varied for analysis. The results showed that the maximum load of the wall-thinned elbow decreased with increasing of the circumferential thinning length and the thinned thickness in both of extrados and intrados thinning locations in both loading types. The maximum load obtained by the analysis were in good agreement with the experimentally measured maximum load with the same wall thinning type and dimensions. This supports accuracy of the analysis results obtained in this study.

• Journal of Korea Multimedia Society
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• v.10 no.12
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• pp.1559-1565
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• 2007

The many target-detection methods that use forward-looking infrared (FUR) images can deal with large targets measuring $70{\times}40$ pixels, utilizing their shape features. However, detection small targets is difficult because they are more obscure and there are many target-like objects. Therefore, few studies have examined how to detect small targets consisting of fewer than $30{\times}10$ pixels. This paper presents a small target detection method using clutter rejection with stochastic hypothesis testing for FLIR imagery. The proposed algorithm consists of two stages; detection and clutter rejection. In the detection stage, the mean of the input FLIR image is first removed and then the image is segmented using Otsu's method. A closing operation is also applied during the detection stage in order to merge any single targets detected separately. Then, the residual of the clutters is eliminated using statistical hypothesis testing based on the t-test. Several FLIR images are used to prove the performance of the proposed algorithm. The experimental results show that the proposed algorithm accurately detects small targets (Jess than $30{\times}10$ pixels) with a low false alarm rate compared to the center-surround difference method using the receiver operating characteristics (ROC) curve.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.9
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• pp.4326-4333
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• 2012

Phytoplankton standing stocks had been researched in Saemangeum water region from 2001 to 2010 belong to the construction period of Saemangeum dike. The big change of phytoplankton standing stocks was shown, reaching 57 - 85,219 cells/ml according to the sampling seasons and stations. Inside of Saemangeum lake, a flux of fresh water and sea water made the phytoplankton standing stocks changed spatiotemporally. Meanwhile, the water bloom was frequent with continuously high standing stocks of fresh water stations and the standing stocks outside of the dike have been normal. In the long-term point of view, the standing stock did not show a big change comparing to the before and after of closing the dike(April, 2006).

• International Journal of Highway Engineering
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• v.17 no.2
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• pp.21-30
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• 2015

PURPOSES : The purpose of this study was to evaluate the performance of rapid-setting polymer-modified asphalt mixtures with a high reclaimed asphalt pavement (RAP) content. METHODS: A literature review revealed that emulsified asphalt is actively used for cold-recycled pavement. First, two types of rapid-setting polymer-modified asphalt emulsion were prepared for application to high-RAP material with no virgin material content. The quick-setting polymer-modified asphalt mixtures using two types of rapid-setting polymer-modified asphalt emulsion were subjected to the following tests: 1) Marshall stability test, 2) water immersion stability test and 3) indirect tensile strength ratio test. RESULTS AND CONCLUSIONS : Additional re-calibration of the RAP was needed for laboratory verification because the results of analyzing RAP aggregates, which were collected from different job sites, did not deviate from the normal range. The Marshall stability of each type of binder under dry conditions was good. However, the Type B mixtures with bio-additives performed better in the water immersion stability test. Moreover, the overall results of the indirect tensile strength test of RAP mixtures with Type B emulsions exceeded 0.7. Further research, consisting of lab testing and on-site application, will be performed to verify the possibility of using RAP for minimizing the closing of roadways.