• Journal of Navigation and Port Research
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• v.30 no.8 s.114
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• pp.685-690
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• 2006

The rail clamp is the device to prevent that a crane slips along rails due to the wind blast as well as to locate the crane in the set position for loading and unloading containers. The wedge typed rail clamp should be designed to consider the structural stability and the durability because it compresses both rail side with large clamping force by the wedge working as the wind speed increases. In this research, the design of experiments(DOE) and the variation technology(VT) built in ANSYS WORKBENCH are utilized to determine the optimum shape of a jaw. The optimum results obtained by two methods are compared and examined.

• Journal of Digital Contents Society
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• v.18 no.8
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• pp.1567-1576
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• 2017

This study presented the direction of cultural welfare based on ICT. For this purpose, it examined the direction of government policies and the status of cultural welfare services and it analyzed art galleries and museums focusing on experiences of cultural welfare services in a home and abroad. As a result, the museum has many changes depending on the media environment, unlike art gallery. In the age of media 1.0, the audience has experienced in real museums. As time goes by, in the age of media 2.0, the customer has opportunity to experience in virtual museums. It seems that there are many differences factor of a media environment, target (exhibits), accessibility, consumption and information. Finally, this study suggested the environmental change factors of Korean ICT cultural welfare service through this. In the future, it will be necessary to continue research on the possibility of expanding cultural welfare services for cultural enjoyment to the underprivileged.

• Journal of Acupuncture Research
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• v.27 no.5
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• pp.35-42
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• 2010

Objectives : The purpose of this study was to analyze the changes of quality of life after reduction of muscluloskeletal pain treated with Korean traditional medicine. Methods : The authors observed reduction of musculoskeletal pain and recorded pain reduction by VAS. And we surveyed SF-36 twice, admission day and one month later and compared each other. Results : 1. Musculoskeletal pain with Korean traditional medical treatment decresed significantly. 2. As patients' musculoskeletal pain reduced, all parts of quality of life increased. Especially, the improvement of Bodily Pain(BP), Physical Function(PF), Vitality(VT), Mental Health(MH), General Health(GH) were statistically significant. Conclusions : Reduction of muscluloskeletal pain improved patient's physical, mental, emotional and social quality of life. But Social Function(SF) and Role Limitation(RP,RE) were less than others, so we need to develop complementary programs.

• Phonetics and Speech Sciences
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• v.9 no.2
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• pp.69-76
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• 2017

The current study investigated whether Korean learners' English-learning environments, especially target English accent (General American English (GAE) vs. Southern British English (SBE)) and English-language experience affected their production of English vowels. Thirty six EFL learners, 27 ESL-US learners, and 33 ESL-UK learners produced 8 English vowels with a bVt frame (beat, bit, bet, bat, bought, bot, boat, boot). The learners' productions were acoustically analyzed in terms of F1 and F2 frequencies. The overall results revealed that the learners' target accent had an effect on their production of some English vowels. The EFL and ESL-US learners' (especially, female learners') production of bought, bot, boat, and boot, which show characteristic differences between the GAE and SBE accents, was closer to that of the native American English (AE) speakers than the native British English (BE) speakers. In contrast, the ESL-UK learners' production of bought and bot demonstrated the opposite pattern. Thus, the impact of target accent was not demonstrated across the board. The effect of the learners' different English-language experience was also rather limited. This was because the EFL learners' production was not much different from the ESL-US learners' production, in spite of the ESL-US learners' residence in the US for more than 9 years. Furthermore, the Korean learners, irrespective of their different English-language experience, tended to produce bit and bat with lower F1 than the native AE and BE speakers, thus resulting in bit and bat to be produced similarly to beat and bet, respectively. This demonstrates the learners' persistent L1 effects on their English vowel production despite the learners' residence in the English speaking countries or their high English proficiency.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.22 no.1
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• pp.157-171
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• 2009

Objective : The face is very important for human communication. So facial palsy patients experience not only physical disturbances but also serious emotional stress. Therefore the focus of treatment must be to not only aid the recovery of objective symptoms but also the improvement of subjective quality of life. However there has not been enough Oriental Medical study in this field until now. Thus this study was begun to suggest a useful index for the treatment of facial palsy. Methods : Grade of paralysis, sequelas, and quality of life were used for evaluation. To evaluate Grade of paralysis, House-Brackman Grade was used as the Gross scale and Kim's Grade was used as the Regional scale. Sequelas were evaluated by muscle contraction, synkinesis, NA, and grade of philtrum tilt. Quality of life was evaluated by SF-36v2, Facial Disability Index, and Vas. Results & Conclusion : 1. The change of grade of paralysis between the early and the present time reveals remarkable improvement statistically. 2. There was a remarkable improvement in all parts of quality of life except several areas of SF-36(RP, RE, MH, VT) 3. In only PF(Physical Function) of FDI, quality of life increased remarkably according to the improvement of grade of paralysis. 4. There is the positive relationship among Kim's grade, HB grade and Synkinesis 2. 5. Synkinesis among sequelas has the greatest effect on quality of life. And muscle contraction, change of NA, and grade of philtrum tilt also affect quality to some extent. 6. There was no remarkable relationship between the period of illness and change of quality of life. 7. Change of NA is shown after 3 months of illness and synkinesis becomes worse after 6 months of illness.

• Food Science and Preservation
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• v.14 no.3
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• pp.332-335
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• 2007

Hot water and 95%(v/v) ethanol extracts were prepared from dried Lespedeza cuneata seeds and antioxidant compounds were isolated by solvent fractionation, silica gel adslorption chromatography, Sephadex LH-20 column chromatography, and preparative HPLC. Antioxidant activity was measured using DPPH radical scavenging activity. The 80%(v/v)ethanol and ethylacetate fraction of Lespedeza cuneata seed extracts had stronger antioxidant effects than did the n-hexane fraction. The active antioxidant compounds obtained from hot water and 95%(v/v) ethanol extracts may be identical, based on analysis by Sephadex LH-20 column chromatography and preparative HPLC.

• Journal of the Korean Institute of Intelligent Systems
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• v.21 no.6
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• pp.730-736
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• 2011

In this paper, we designed the models for pattern classification which can reflect the latest trend in time series. It has been shown that fusion models based on statistical and AI methods are superior to traditional ones for the pattern classification model supporting decision making. Especially, the hit rates of pattern classification models combined with fuzzy theory are relatively increased. The statistical SVM models combined with fuzzy membership function, or the models combining neural network and FCM has shown good performance. BPN, PNN, FNN, FCM, SVM, FSVM, Decision Tree, Time Series Analysis, and Regression Analysis were used for pattern classification models in the experiments of this paper. The economical indices DB with time series properties of the financial market(Korea, KOSPI200 DB) and the electrocardiogram DB of arrhythmia patients in hospital emergencies(USA, MIT-BIH DB) were used for data base.

• Journal of Korean Society of Forest Science
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• v.96 no.2
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• pp.214-221
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• 2007

The effect of nutrient availability and forest type on the nutrient turnover of fine roots is important in terrestrial nutrient cycling, but it is poorly understood. I measured nutrient turnover of hardwoods and softwoods at three well studied sites in the northeastern US: Sleepers River, VT; Hubbard Brook, NH; Cone Pond, NH. Significant differences in nutrient turnover by fine roots were observed among sites, but not between forest types. The magnitude of differences for each element ranged from 3 times for P and N to 8 times for Ca and Mg between sites. Smaller differences of 0.2 to 0.8 times were observed between forest types. In hardwoods, the Sleepers River 'new' site had $23kg\;ha^{-1}\;yr^{-1}$ Ca, $7kg\;ha^{-1}\;yr^{-1}$ Mg, and $16kg\;ha^{-1}\;yr^{-1}$ K turnover, owing to high root nutrient contents and turnover. Cone Pond had the highest turnover for Mn ($0.8kg\;ha^{-1}\;yr^{-1}$) and Al ($16kg\;ha^{-1}\;yr^{-1}$), owing to high nutrient contents. The Hubbard Brook hardwood site exhibited the lowest turnover of these elements. In softwoods, the variation in turnover of Ca, Mg, and K was lower than in hardwoods. The Hubbard Brook had the highest turnover for P ($1.6kg\;ha^{-1}\;yr^{-1}$), N ($31kg\;ha^{-1}\;yr^{-1}$), Mn ($0.4kg\;ha^{-1}\;yr^{-1}$), Al ($10kg\;ha^{-1}\;yr^{-1}$), Fe ($6.4kg\;ha^{-1}\;yr^{-1}$), Zn ($0.3kg\;ha^{-1}\;yr^{-1}$), Cu ($34g\;ha^{-1}\;yr^{-1}$), and C ($1.1Mg\;ha^{-1}\;yr^{-1}$). Root Ca turnover exponentially increased as soil percentage Ca saturation increased because of greater root nutrient contents and more rapid turnover at the higher Ca sites. These results imply that nutrient inputs by root turnover significantly increase as soil Ca availability improves in temperate forest ecosystems.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2003.05a
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• pp.192-197
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• 2003

A virtual vessel traffic control system is introduced to contribute to prevent a marine accident, e.g. ship collision or stranding. from happening. The system that comes from VTS limitaions, consists of both data acquisition by satellite remote sensing and a simulation of traffic environment stress (here, INOUE model used) based on the satellite data. Remotely sensed data cab be used to provide timely and detailed information about the marine safety, including the location, speed and direction of ships, and help us operate vessels safely and efficiently. If in the future, e.g. 5-minute after, environmental stress values that a ship may encounter on a voyage can be available, proper actions can be taken to prevent accidents. It lastly can be shown that JERS satellite data are used to track ships and extract their information.

• Journal of Navigation and Port Research
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• v.26 no.3
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• pp.261-268
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• 2002

At recently, Oil spill accident of large size oiler that happen domestic and outside the country is occured to social impact us as well as economical damage in sea environment. Also, because spread extent of pollution accident is reaching harbor, bay and close water areas, as necessity that traffic control ships are sea place. VTS is changing to concept that control space is magnified gradually. Our country is operated to 14 harbors which is control center. But abroad is operating coastal VTS that do main waterway and coastals to authority dimension. Therefore, necessity that traffic density of ship manages high coastals and ship traffic of waterway to our country is risen. This paper is execute sea traffic survey at Mokop sea areas and sea casualty occurs. It proposal that coastal VTS center field of most suitable and position of radar site.