• Journal of Environmental Science International
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• v.22 no.4
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• pp.435-442
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• 2013

The purpose of this study, the type of rooftop learn more about the psychological benefits to users has been carried out, and healthy college students were examined in 40 patients. Conduct research to make the rooftop of the type of lawn, trees, ecological garden, wetland biotope, flowering plant in Seoul were divided into six groups. Measurement methods based on the type designation of the Planting and landscape photography by once the participants for each 10 minutes to watch and mood state tests (POMS) and the mean fractionation (SD), based on survey information about the psychological effects were correlated. Mood States test lawn, tree-oriented type, flowering plant stability in type, kindness, openness, and the effect of raising warme there was a tension, anxiety, depression, anger inhibition was effective. In contrast, depression and fatigue are common rooftop greening, respectively. The results in terms of the psychological effects of the type of rooftop garden ecology and wetland biotope than lawn, tree-oriented type, flowering plant types of users with a positive psychological effect seemed to be better.

• Journal of the Ergonomics Society of Korea
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• v.22 no.2
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• pp.15-28
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• 2003

The one of the most important factors is the platoon design on developing AH3(Advanced Highway System), as it is related to traffic efficiency and drivers' safety. This study was evaluated that how much speed is comfortable for drivers and how long distance is appropriate for vehicular gap of platoon by measuring drivers' physiology signal and sensibility. A fixed-based AHS simulator was developed by using a real vehicle cockpit and the restructured part of Korean highway for human factors evaluation. The EEG(electroencephalogram), ECG (electrocardiogram) and GSR(Galvanic Skin Response) were measured for obtaining drivers' physiology signal according to the change of speed and gap. The brain wave(${\alpha},\;{\beta},\;{\delta},\;{\theta}$) by EEG, the response of the autonomic nervous system. the sympathetic and parasympathetic nervous system, by ECG, and relax-arousal situation by GSR were analyzed. The SD(Semantic Differential) method was also applied to evaluate drivers' sensibility by 5-grade evaluation scale with 96 adjectives. SSQ(Simulator Sickness Questionnaire) was used to measure the simulator sickness of pre and post driving, two times. As the results, drivers were comfortable with 120km/h speed of platoon and lam to 15m vehicular distance. The results of this study may differ from the adaption of the reality because of many parameters. However, the purpose of this study is show to significant results of the drivers' safety and the acceptability of human factors evaluation.

• International Journal of Computer Science & Network Security
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• v.22 no.3
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• pp.382-388
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• 2022

Satellite communication for high altitude platform stations (HAPS) and low earth orbit (LEO) systems suffer from dust and sand (DU&SA) storms in the desert regions such as Saudi Arabia. These attenuations have a distorting effect on signal fidelity at high frequency of operations. This results signal to noise ratio (SNR) to dramatically decreasing and leads to wireless transmission error. The main focus in this paper is to propose common relations between HAPS and LEO for the atmospheric impairments affecting the satellite communication networks operating above Ku-band crossing the propagation path. A double phase three dimensional relationship for HAPS and LEO systems is then presented. The comparison model present the analysis of atmospheric attenuation with specific focus on sand and dust based on particular size, visibility, adding gaseous effects for different frequency, and propagation angle to provide system operations with a predicted vision of satellite parameters' values. Skillful decision and control system (SD&CS) is proposed to control applied parameters that lead to improve satellite network performance and to get the ultimate receiving wireless signal under bad weather condition.

• Journal of People, Plants, and Environment
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• v.22 no.1
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• pp.109-118
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• 2019

Physical activities in the forest environment stimulate the parasympathetic nervous system of humans and have positive effects on the autonomic nervous system as well as moods and emotions. However, there are almost no studies on the benefits of exercise in the forest environment for patients with myocardial infarction. The aim of this study was to investigate the effects of 15-minute single session walking by myocardial infarction patients in the forest and urban environment on the physiological and psychological states. The heart rate variability was measured in 10 patients with myocardial infarction to assess physiological state after single session walking for 15 minutes in the forest environment and urban environment. In order to evaluate the psychological state, a profile of mood scale (POMS) and semantic differential (SD) questionnaire were used. The results of this study showed that 15-minute single session walking in the forest environment activated the parasympathetic nervous system of adult myocardial infarction patients more than 15 minutes of single session walking in the urban environment, and also made them feel more positive in terms of the POMS and SD. Therefore, this study suggests that even single session walking in the forest environment can positively influence the physiological and psychological states of adult heart disease patients and may also contribute to health care.

• Asian Oncology Nursing
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• v.6 no.2
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• pp.133-142
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• 2006

Purpose: The purpose of this study was to identify factors influencing depression in breast cancer patients. Method: A descriptive correlational study design was used. A convenience sample of 155 subjects was recruited from the outpatient for breast cancer patients at one hospital in Gyeonggi, South Korea. Body image was measured with the category of "Body image" from the EORTC QLQ-BR23(European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Breast cancer version) and sexual function was measured with category of "sexual function" from it. Depression was measured with Korean version of Beck Depression Inventory(BDI). Results: The mean score of body image was relatively low(M = 54.44, SD = 30.92), of sexual function was low (M = 24.82, SD = 22.50), and of depression was relatively low(M =14.90, SD = 8.00). Depression had a significant relationship with body image(r = -.363, p = <.001), however, there was no significant relationship between depression and sexual function(r = -.137, p = .103). In the regression analysis, depression was found to be influenced significantly by monthly income and body image, these variables explained 28.8% of the variance in depression(F = 4.662. p = <.001). Conclusion: It suggests that nurses need to take into consideration body image and economic status in management depression in breast cancer survivors.

• Culinary science and hospitality research
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• v.12 no.1 s.28
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• pp.144-156
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• 2006

In the survey of Korean and Japanese female students at the age of $20{\sim}22$, the conceptions of Japanese, Korean, Chinese and Western daily foods were recorded by SD and factor analysis and their perceptions about cuisine of their own countries and other countries in the diets of young people were figured out on the basis of their conceptions. The results are given below. The trends of perceptions about cuisine of their own countries and about Chinese and Western cuisine were coincided in both the Korean and the Japanese. The perceptions of their own countries‘ cuisine might seem to be traditional, familiar, cheap, and delicious. About Western cuisine, they felt that it seemed to be elegant and expensive but not familiar or delicious. Furthermore, the Korean had stronger perceptions about it than the Japanese had. For Chinese cuisine, the Korean felt the same as they did toward the Japanese foods just as the Japanese felt that the Korean cuisine was similar to the Chinese cuisine. The Japanese have thought that the Korean food-style was similar to that of their own country and Kimchi and Bulgogi have emerged in popular Japanese cooking. Also, they felt that the Korean cold noodle dish and Bibimbab were very familiar. On the other side, the Korean have become familiar with sushi, grilled meat, and Japanese noodles, but they were not familiar with other foods.

• Korean Journal of Veterinary Service
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• v.14 no.1
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• pp.13-17
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• 1991

This studies were carried out to investigate the changes of blood pictures within 24hrs after birth in Korean native calves. The hematologic values were examined from 300 heads healthy Korean native calves in the area of western farm of Chungnam province. The results obtained are summarized as follows : 1. $Mean{\pm}SD$ values of serum total protein contents within 24 hrs after birth in Korean native calves were $8.42{\pm}0.92g$ / dl and 48.14{\pm}0.93g$ / dl, respectively. 2. $Meant{\pm}SD$ values of RBC count, WBC count, PCV and Hb contents within 24 hrs after birth in Koren native natives were 49.97{\pm}2.56{\times}10^3$ / mm^3$ and $9.88{\pm}2.93{\times}10^3/ mm^3, $ 439.56{\pm}15.42%$ and 441.66{\pm}7.09 %, $$ 12.79{\pm}1.59g$ / dl and 13.$63{\pm}1.87g$ / dl, respectively. 3. 4Meant{\pm}SD$ values of MCV, MCH and MCHC within 24 hrs after birth in Koren native calves were $43.41{\pm}3.09{\mu}mm^3$ and $43.88{\pm}3.31{\mu}mm^3, $ $14.05{\pm}1.22pg $and 414.36{\pm}1.6pg, $ $32.46{\pm}2.47g$ / dl and 432.96{\pm}3.17g$ / dl, respectively.

• Journal of the Korean Society of Marine Environment & Safety
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• v.10 no.2 s.21
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• pp.17-22
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• 2004

Ship is bring operated under a highly dynamic environments and many factors are related whit marine accident and those factors are interacting. An analysis on the marine accident is very important to prepare countermeasures which will ensure the safe navigation. This paper aims to build a model of the causes and improved policy for marine accident using SD(System Dynamics} approach and to measure a effect which is risk control countermeasures of marine accident. The methodology of this paper is to perform the causes and improved policy for marine accident using Brainstorming method and was to changed by quantitutive, qualitative factors and their feedback loops in casual map. This model was performed over 23 years($1997\~2020$) in a standard simulation model and 4 policy simulation models.

• The Journal of the Acoustical Society of Korea
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• v.22 no.4
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• pp.293-298
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• 2003

In this paper. we propose a fast search algorithm for nearest neighbor vector quantization (NNVQ). The proposed algorithm rejects those codewords which can not be the nearest codeword and reduces the search range of codebook. Hence it reduces computational time and complexity in encoding process, while it provides the same SD performance as the conventional full search algorithm. We apply the proposed algorithm to the adaptive multi-rate (AMR) speech coder and a general vector quantizer designed by LBG. algorithm. Simulation results show effectiveness of the proposed algorithm.

• Journal of Microbiology and Biotechnology
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• v.22 no.5
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• pp.674-683
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• 2012

A new strain, SD12, was isolated from tannery waste polluted soil and identified as Pseudomonas aeruginosa on the basis of phenotypic traits and by comparison of 16S rRNA sequences. This bacterium exhibited broad-spectrum antagonistic activity against phytopathogenic fungi. The strain produced phosphatases, cellulases, proteases, pectinases, and HCN and also retained its ability to produce hydroxamate-type siderophore. A bioactive metabolite was isolated from P. aeruginosa SD12 and was characterized as 1-hydroxyphenazine ((1-OH-PHZ) by nuclear magnetic resonance (NMR) spectral analysis. The strain was used as a biocontrol agent against root rot and wilt disease of pyrethrum caused by Rhizoctonia solani. The stain is also reported to increase the growth and biomass of Plantago ovata. The purified compound, 1-hydroxyphenazine, also showed broad-spectrum antagonistic activity towards a range of phytopathogenic fungi, which is the first report of its kind.