• The Journal of the Korea Contents Association
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• v.9 no.3
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• pp.185-194
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• 2009

This research attempted to find risk factors of alcoholic liver diseases by ultrasonography at the K image medicine clinic center located in Kwangju city, Kyunggi-Do from March to May, 2007. Six risk factors were selected for this study, age, sex, frequency of alcohol drinking, body mass index(BMI), cholesterol and GPT. The data collected from 353 patients of aged between 20 and 69. This study found the relationships between liver diseases and alcohol drinking style by liver ultrasonography. The results of the analyses showed that the male were 2.12 times more likely to have liver diseases than the female. The persons drinking alcohol more than 3 times per week had 2.37 times higher likelihood of showing liver diseases than below 2 times per week or non drinking at all.. The persons with normal body mass index have 0.52 times lower probability of liver diseases than the persons with abnormal BMI. The persons with abnormal cholesterol level have 9.13 times higher probability of liver diseases. The persons with abnormal GPT have 4.66 times higher probability of liver diseases. The results of this study suggested applying ultrasonography in health promotion programs for diagnosis of liver diseases.

• The Journal of the Society of Stroke on Korean Medicine
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• v.15 no.1
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• pp.39-49
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• 2014

This report is about a case of an ataxia patient with sensory loss diagnosed with thalamic Infarction. The patient had symtoms of gait disturbances and dysmetria. We used Korean medicine treatment modalities including acupunture, electroacupuncture, moxibustion and herb medicines. The improvement of ataxia was evaluated by International Cooperative Ataxia Rating Scale and Balance master^Ⓡ system. After treatment, decreased scores of International Cooperative Ataxia Rating Scale and change of the trace of Balance master^Ⓡ system showed that symtoms of ataxia were improved. Sensory deficits and other conditions were also getting better. This report suggests that Korean medicine could have a therapeutic effect for Thalamic ataxia.

• The Korean Journal of Financial Management
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• v.26 no.3
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• pp.31-64
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• 2009

This article investigates the short-term cash flow exposures to Korea's major trading partners' currencies based on the kospi and kosdaq firm data from 2000 to 2008. The cash flow approach allows us to analyze the influence on operational performances of individual firm's hedging strategies. Taken all three foreign exchange rates together, more than 30% of the sample firms exhibit significant exposure. Given that the short-term cash flow is rather easy to hedge, the result proves a poor exchange rate risk management practices of Korean firms. Kosdaq firms are more exposed than Kospi firms. On the contrary to the previous researches using stock prices, the operational cash flows show a positive relationship with the value of foreign currencies. The exchange rate-firm sample further shows that the size and leverage affect the level of exposure.

• The KIPS Transactions:PartB
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• v.16B no.6
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• pp.471-478
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• 2009

The lung diseases classifying as one of the six incurable diseases in modern days are caused mostly by smoking and air pollution. Such causes the lung function damages, and results in malfunction of the exchange of carbon dioxide and oxygen in an alveolus, which the interest is augment with risk diseases of life prolongation. With this in the paper, we proposed a diagnosis method of lung diseases by applying parameters of voice analysis aiming at the getting the voice feature extraction. Firstly, we sampled the voice data from patients and normal persons in the same age and sex, and made two sample groups from them. Also, we conducted an analysis by applying the various parameters of voice analysis through the collected voice data. The relational significance between the patient and normal groups can be evaluated in terms of speech rates and intensity as a part of analized parameters. In conclusion, the patient group has shown slower speech rates and bigger intensity than the normal group. With this, we propose the method of voice feature extraction for lung diseases.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.11 no.5
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• pp.985-990
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• 2007

The method of enhancing visibility in optical fiber sensor was investigated by improving coherence length of light source. The optical feedback technique is used to enhance coherence length in fiber laser which generates laser in near infrared wavelength region and utilizes low loss characteristics of optical communication grade fiber. In this paper, the effect to coherence length by short and long optical feedback paths are investigated by using Mach-Zehnder interferometer technique. The effect to coherence length by changing optical feedback power and optical modulation are investigated. The spectral drift was calculated by measuring the degree of phase perturbation in unbalanced Mach-Zehnder interferometer having loom path difference. The short optical feedback path was effective to reduce spectral drift to 450kHz/sec and the long optical feedback path in combination with short optical feedback path was found to further reduce spectral drift to 50kHz/sec.

• Journal of the korean academy of Pediatric Dentistry
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• v.31 no.3
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• pp.459-473
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• 2004

Recently, many children have been treated under sedation in the department of pediatric dentistry of the dental hospital of Kangnung National University, and sedation cases are increasing gradually. So, in this study. the author analyzed and studied about the characteristics of sedated pediatric dental patients and their parents with patient chart and questionnaire at first visit, from 1999 to 2002 for the purpose of making pediatric dental treatment plan more effective and the improvement of behavior management for better pediatric dentistry. The results were follows : 1. The number of total pediatric and sedative patients increased from 1999 to 2002. 2. The sedated pediatric dental patients were younger than total pediatric dental patients(p<0.001). 3. In visit frequency per month, the sedated patients showed higher percentage on March, July, November contrast to non-sedated patients(p<0.001). 4. In parental occupation, there was a significant difference between sedated patients and non-sedated patients(p<0.001). 5. Caries treatment rather than preventive care or orthodontic treatment, was primarily composed of chief complaint of sedated patients(p<0.001). 6. The sedated patients showed worse response to previous treatment than non-sedated patients, and their parents also expected worse response contrast to non-sedated patients (p>0.001). 7. The patients who were introduced, occupied 31.2% of sedated pediatric dental patients and referral by the dentist were composed of the highest percentage(58.3%). 8. In case of uncooperative child at conventional behavior management, the parents of sedated pediatric dental patients prefered to sedation(50.9%). while the parents of non-sedated patients prefered to physical restraint(54.6%) (p<0.001).

• Journal of the korean veterinary medical association
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• v.22 no.9
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• pp.525-526
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• 1986

• Korea Information Processing Society Review
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• v.20 no.3
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• pp.35-44
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• 2013

• Proceedings of the Korean Society of Crop Science Conference
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• 1980.05a
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• pp.18.1-18.1
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• 1980

• Proceedings of the Korea Port Economic Association Conference
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• 2007.10a
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• pp.119-134
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• 2007