• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.9
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• pp.167-174
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• 2019

The propose od this study was to examine the extent of using physical restraint on elderly patients (over 65 years old) and who were patients in long-term care hospitals. The data was collected, from March 3 2018 to March 29 2018, from the electronic nursing records by using a recording tool, and clinical observation was also used for assessing the use of physical restraint and the related factors. Descriptive statistics, Pearson correlation coefficients and logistic regression were then performed. The usage rate for physical restraints in long-term care hospital was 83.7%, and the most common type of physical restraint was side rails. The use of physical restraints showed a positive correlation with the fall risk scores and a negative correlation with the MMSE. Logistic regression analysis showed that the Fall Risk Score (OR=1.02, 95% CI=1.01~1.03), MMSE (OR=0.94, CI=0.88~0.99) and the use of medical devices (OR=0.80, 95% CI=0.65~0.98) were related with using physical restraints. Therefore, it was confirmed that physical restraint was used in cases of a high risk of falling, severe cognitive impairment and the use of complex and fragile medical devices to treat the patient. Clinical nursing practice should be changed so that treatment alternatives can be applied for elderly patients rather than using too many physical restraints.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.20 no.3
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• pp.371-377
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• 2007

In this paper, acceleration threshold of perception for the horizontal vibration of tall buildings was estimated. Excessive vibration of tall buildings by wind can give displeasure, such as giddiness and visual insecurity. To provide comfortable environment to residents of tall buildings, acceleration needs to be limited. For tall buildings the first mode of vibration is dominant. To reproduce the first mode of vibration, experiments were performed by generating sine waves by a shaking table. A nitration house was made and forty persons were employed for experiments. The forty persons were organized into five experimental groups, each of which was composed of eight persons, and the threshold of perception for horizontal vibration was measured by increasing acceleration in the range of 0.2Hz through 1.2Hz of frequency, Performance curves were obtained by dividing the distribution of perception for horizontal vibration into the range of $0{\sim}20%,\;21{\sim}40%,\;41{\sim}60%,\;61{\sim}80%\;and\;81{\sim}100%$ and by fitting curves.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.33 no.11A
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• pp.1063-1071
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• 2008

This paper proposes a prior maximum likelihood (ML) detection verifier which has an ability to verify if the zero forcing (ZF) detection results are identical to the ML detection results. Since more than 90% of ZF detection results are identical to ML detection results, the proposed verifier makes it possible to omit the computationally complex ML detection in 90% cases of MIMO signal detections. The proposed verifier is designed by using the diversity gain obtained from converting MIMO signal into single input multiple output (SIMO) signals. In the proposed method, single input multiple output (SIMO) signals for each transmit antenna are separated from MIMO signals after the MIMO signals are detected by ZF method. Computer simulations show that the true alarm probability of the proposed verifier is more than 80% and the false alarm probability is less than $10^{-4}$.

• Water for future
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• v.16 no.3
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• pp.171-179
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• 1983

In the Jeon Cheon Basin, unconsolidated alluvium and marine clay beds overlying Tertiary conglomerate and impermeable mudstone, and Cambro-Ordovician sedimentary rocks composed of mainly cavernous limestones, and age-unknowned crystalline rocks are occured. Most productive rock is Cambro-Ordovician limestones containing a lot of solution openings and secondary porosities and shows its transmissivity of 1836$m^2$/day and storativity of 1.47 $\times$ $10^{-3}$. The storage of deep seated groundwater in linestone aquifer is estimated about 1059 $\times$ $10^6$ metric tons, being equivalent to 6 years total precipitation of the basin. The safe yield of the groundwater to be abstracted from the aquifer is about 126,000 tons/day. To pump at least 100,000 tons/day of groundwater from the said aquifer, a well field comprising 34 deep wells ranging in depth from 80 to 100 meter and penetrating the cavernous limestone aquifer shall be established at middle and down stream area.

• Korean Journal of Plant Resources
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• v.29 no.5
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• pp.620-624
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• 2016

The Wnt/β-catenin signaling pathway is mandatory in adipogenesis. In this study, we investigated the applicability of functional materials for the treatment of obesity by examining Wnt/β-catenin pathway reporter activity related to adipocyte differentiation inhibiting with korean native plant extracts. The luciferase activity of HEK 293-TOP cells increased the reporter activity approximately 152% and 130% by treatment with Sanguisorba officinalis and Thuja orientalis, respectively. Ricinus communis were represented about 90% higher activity, two samples(Rosa rugosa and Sophorae Flos) showed 80% higher activity than the control. Three samples of plant extracts (Zanthoxylum piperitum, Pueraria thunbergiana, Solanum nigrum) were about 70% higher activity compared with the non-treated control. Cytotoxicity of plant extracts was not detected in the rat neural stem cells. These results suggest that the selected eight plant extracts are safe compounds. Our findings indicate that Wnt/β-catenin pathway reporter activity could be used for high throughput screening system. In addition, the plant extracts selected as candidates for adipocyte differentiation inhibiting may be potential therapeutic agents for obesity, it will be exploring the possibility of developing an anti-obesity materials through further experiments with selected plant extracts.

• The Korean Journal of Mycology
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• v.41 no.2
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• pp.127-131
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• 2013

Traditional knowledge on wild mushrooms in Gyeongnam province near of Hallyeo-Haesang National Park was investigated. It was interviewed from 145 of people in age of 50th's to 90th's living in 53 villages. Total 19 mushrooms were used for food in which Ramaria botrytis was the most frequently used and followed Macrolepiota procera and Lentinula edodes. L. edodes was uniquely both medicinal and edible. Chlorophyllum neomastoidea, poisonous mushroom, was used as an insect repellent. The most various mushrooms were found in Irun, Geoje where 10 species of mushrooms were used and followed Jingyo, Hadong where 8 species were used. Among the interviewed people, the number of female was more than double compared to that of male and most of the interviewed people were 70th's and 80th's in age.

• Journal of the Korean Society for Marine Environment & Energy
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• v.6 no.3
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• pp.37-44
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• 2003

To know the penetration behavior of spilled oil into sandy beach sediment is very important, because the penetration depth of the stranded oil into the sediments is one of the most significant information to know effect of spilled oil on biological communities and to set up cleaning method. The purpose of this study is to clarify the effects of wave and/or tidal action on penetration of spilled oil into the sediments and to clarify main factor in oil penetration using sandy beach model. Specific conclusions derived from this study are as follows. Spilled fuel oil C penetrated into the sediments only by falling tidal fluctuation and not by wave action on sandy beach environment, and the first tide is most important for the penetration of stranded oil. Over 80% of bulk fraction in penetrated fuel oil C was concentrated to the top 2 cm sediment-layer. Moreover, the penetration of stranded oil into the sandy beach sediments was strongly correlated with the oil viscosity affected by temperature.

• Journal of Korean Society of Coastal and Ocean Engineers
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• v.19 no.6
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• pp.547-556
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• 2007

The sediment transport by waves, wave-induced current and tidal current was calculated using the TRANSPOR2004, then the seasonal sediment budget was analyzed. Also, annual sediment budget was calculated, and sediment circulation patterns was deduced in the broad area including Haeundae beach. A sediment mainly inflows from the east coast of the beach and then moves to the eastward to the Dongback Is, where the 80% of inflow sediment transported to the eastward as a longshore sediment while 20% of them going out to the offshore at the center of the beach. Above results shows a good agreement with the sediment transport trend analysis results by the Gao model.

• Proceedings of the KAIS Fall Conference
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• 2009.05a
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• pp.222-226
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• 2009

본 연구는 40~50대 중년여성을 대상으로 측정한 체내지방분포와 심전도 QTc 간격과의 관련성을 규명하기 위하여 2004년 7월부터 2005년 8월까지 일개 광역도 소재의 일개 군 보건소 운동처방실을 방문한 여자 100명을 대상으로 체내지방분포와 심전도 QTc 간격 등을 측정하였다. 주요 결과는 다음과 같다. 1. 중년여성의 안정시 심전도 QTc 간격과 체내지방분포와의 상관관계에서는 비만도, 체질량지수, 체지방율, 허리둘레, 엉덩이둘레, 허리-엉덩이둘레 비가 유의한 상관관계를 보였다. 2. 체지방율이 30% 이상인 비만군과 30% 미만인 정상군의 QTc 간격은 비만군이 정상군에 비해 QTc 간격이 더 연장된 결과를 보였다. 3. 허리둘레가 80cm 이상인 복부비만군과 80cm 미만인 정상군의 QTc 간격은 복부비만군이 정상군에 비해 QTc 간격이 더 연장된 결과를 보였다. 4. 연구대상자의 안정시 QTc 간격을 종속변수로 한 다중회귀분석을 실시한 결과를 살펴보면, 체지방율과 허리둘레가 유의하게 나타났다. 40~50대 중년여성의 심전도 QTc 간격에 영향을 주는 요인에는 체내지방분포에 따른 비만도, 체질량지수, 체지방율, 허리둘레, 엉덩이둘레 등 여러 요인들이 복합적으로 관련되는 것으로 판단되어지며, 그 중 전체지방분포를 나타내는 체지방율이 가장 크게 관련되는 것으로 판단되어진다.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.6 no.1_2
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• pp.20-26
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• 1973

Authors have investigated the monthly distribution of vibrio flora in sea water, mud, fish and shellfish in the public beaches at the suburbs of Busan in order to determine the possible origins of food poisoning. The results are summarized as follows: 1. The monthly distribution shows that V. parahaemolyticus occurs from May to November and V. alginelyticus all the year round. 2. A total of 40 strains of Vibrio flora were isolated from 40 sea water samples, 25 strains from 40 mud samples, If strains from 88 shellfish samples, and 3 strains from 30 fish samples. 3. More strains were isolated from the samples collected at Yongho and Suyeong that at the other localities. 4. A total of 80 strains of Vibrio flora, isolated from 198 samples, were divided into two groups : V. perahaemolyticus with 20 strains and V. alginelyticus 60 strains.