• Transactions of the Korean Society of Automotive Engineers
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• v.7 no.6
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• pp.258-269
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• 1999

It is important to evaluate fatigue damage of in-service material in respect to assure safety and remaining fatigue life in structure and mechanical components under cyclic load . Fatigue damage is represented by mathematical modelling with crack growth rate da/dN and cycle ration N/Nf and is detected by X-ray diffraction and ultrasonic wave method etc. But this is estimated generally by single parameter but influenced by many test conditions The characteristics of it indicates fatigue damage has complex fracture mechanism. Therefore, in this study we propose that back-propagation neural networks on the basis of ration of X-ray half-value breath B/Bo, fractal dimension Df and fracture mechanical parameters can construct artificial intelligent networks estimating crack growth rate da/dN and cycle ratio N/Nf without regard to stress amplitude Δ $\sigma$.

• Journal of Veterinary Clinics
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• v.14 no.1
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• pp.37-41
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• 1997

For the inspection of the occurrence situation of porcine pleuropneumonia and serotyping of Actinobacillus pleuropneumoniae strains isolated from lung lesions of pig in Korea, a series of experimentation have been carried out by the isolation and identification of A pleuropneumoniae, serotyping by coagglutination test, observation of lung lesion and clinical signs from 360 cases of porcine pneumonia in Clinical Pathology Laboratory, Bayer Veterinary Medical Research Institute. The results could be summarized as follows. The reaction of coagglutination between the reference antigens and the specific reagents of A pleuropneumoniae was strongly agglutinatied within 30 seconds without cross reaction. The 89 strains of A pleuropneumoniae were isolated from 360 cases of porcine pleuropneumonis and the biochemical properties of the isolates were same as the reference strains. The 89 isolated strains could be serotyped 39 strains as setotype 5, 34 strains as serotype 2, 8 strains as serotype 3, 2 strains as serotype 7 by coagglutination test, respectively. The clinical signs of pleuropneumonia were weakness, fever, anorexia, dyspnea and laboured breath in the later stages. The gross lesions of lung were haemorrhages, enlargement of interlobular septa, nodular formation and adhesion of the pleura.

• The Transactions of the Korean Institute of Electrical Engineers C
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• v.48 no.9
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• pp.676-680
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• 1999

To do breath alcohol measurement, a sensor is necessary that it can detect low alcohol gas concentration of 0.01% at least. In this work, a capacitance-type alcohol gas sensor using porous silicon layer is developed to measure low alcohol gas concentration. The sensor using porous silicon layer has some sensitivity at room temperature by very large effective surface area, but there is still much room for improvement. In this experiment, we measured the capacitance of the sensor under 254 nm UV light on the porous silicon layer, in which alcohol solution was kept in a flask at 25, 35, and $45^{\circ}C$ by a heater. As the result, the improvement of sensitivity by illuminating UV light was observed. The increasing rate of the capacitance was shown to be double more than those measured under UV-off state. It is supposed that UV light activates response of the oriental and interfacial polarizations which have slow relaxation time for AC field.

• Journal of Chest Surgery
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• v.17 no.1
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• pp.110-117
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• 1984

A clinical evaluation was performed on 76 cases of chest injury experienced at department of Chest Surgery, Capital Armed Forces General Hospital during the past 3 years period from January 1981 to August 1983. 1.The most common cause of the chest trauma was gun shot by which 26 cases were injured among 44 cases [57.9%] of penetrating injury. Remaining 32 cases [42.1%] were injured by non-penetrating blunt trauma. 2.Hemopneumothorax was observed in 60 cases [78.9%], those were caused by both penetrating [65%] and non-penetrating [35%] injuries. 3.Rib fracture was found in 58.7% of total cases and with rib fracture, clavicle fracture was combined at 19.6% and sternal fracture, at 8.7%. 4.Most common symptoms were chest pain and dyspnea, and most common signs were breath sound diminution and subcutaneous emphysema. 5.Common site of rib fracture was from 4th rib to 8th rib [69.4%]. 6.In 58 cases [76.3%], patients were treated with operation including open thoracotomy [25 cases]. 7.Overall mortality was 5.3%[4 cases] and causes of death were septic shock and respiratory failure.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2010.03b
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• pp.19-19
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• 2010

We suggest CNT-based gas sensors for breath alcohol measurement. The sensors were composed of single-walled carbon nanotubes (SWNTs) thin film on glass substrate with simple process, and the SWNTs thin film as sensing layer was formed by multiple spray-coating with SWNT composites which was well-dispersed, highly controlled and differently functionalized by various binders (TEOS, MTMS, and VTMS) added in ethanol solvent. In this work, three different SWNTs thin films were made to compare their electrical response properties for alcohol vapor. From fabricated sensors, conductance responses were measured and discussed. In the result, our alcohol gas sensors showed an effective selectivity even at room temperature.

• Journal of Oriental Neuropsychiatry
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• v.11 no.1
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• pp.97-102
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• 2000

In the study of psychosomatic disorders caused by Qi-experience, the results were as follows: 1. People are becoming more and more interested in qigong, but sometimes peple are suffer from side effects from Qi-experience. In oder to treat this side effects of qigong, it is important to control Qi unbalance. And this is associated with the mechanism of stress-reaction. 2. The causes of side-effects were tension of body and mind, concentration of head, enduring breath, and wrong qigong-method, etc. 3. The symptoms of side-effects were headache, flushing face, chest discomfort, neck stiffness, indigestion, etc. 4. The theraphy of side-effects is herb-medicine, acupuncture, moxibution, and more effective by application of psychotheraphy, relaxation-theraphy, music, aroma, taping.

• Journal of Haehwa Medicine
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• v.8 no.1
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• pp.827-836
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• 1999

Numerous persons complained dyspepsia even though no specific objective findings are revealed by imaging study, laboratory examinations and other clinical research. To find out of so many symptoms what they are, I would to approach by two ways. One way is oriental medical literatural study and the other is Helicobacter pylori infection that is accepted as one of most important causal factors of many gastric diseases. Background/Aims: Recently, the role of Helicobacter pylori as a causal factor in the etiology of gastric cancer, peptic ulcer, gastritis and low-grade gastric mucosa-associated lymphoid tissue(MALT) lymphoma is well known. Using endoscopy, biopsy urease testing and histology are recommanded as the tests of choice. Serological test is not recommanded at the moment because of its low sensitivity and espicially low specificity. The urea breath test is more sensitive and specific noninvasive test than serologic test, but it is not widely available yet. Methods/Results: We studied 90 cases by diagnostic endoscopy as a screening test for the persons complaining gastrointestinal symptoms. As a result eighteen persons are revealed to be Helicoacter pylori infected histologicaly. Conclusion: More specific literatural studies are requied.

• Journal of Haehwa Medicine
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• v.16 no.2
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• pp.289-294
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• 2007

Hyun-chim Therapy was made for help the people who didn't learn breath training. The doctor acupuncture and treat 'Hyun-chi-sul' and it is a means by which patient can use 'universal Qi'. Ul-zeung comes from obstruction of qi by stress. The mind affect the body. The patient has depressed mood, irritable sign, chest discomfort, flank pain, angry stats and some strange feeling on the throat. In the case, two female patients, who complained of depression, insomnia, anxiety, palpitation, low energy, etc. We treated the patients with Hyun-chim Therapy. In result, the symptoms which they complained were improved.

• The Journal of the Society of Korean Medicine Diagnostics
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• v.16 no.3
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• pp.59-68
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• 2012

The purpose of this study is to report the effects of oriental demonstration treatment for Panic Disorder. Panic Disorder is an anxiety disorder, characterized by panic attacks which are recurring episodes of fear accompanied by somatic symptoms such as shortness of breath, palpitations, chest pain, choking, dizziness, trembling and/or faintness. Objectives: We experienced one case of Panic Disorder treated with Asian medical treatment, acupuncture and herbal medication. 20-year-old female patient suffered from Panic Disorder with nausea and insomnia. Methods: Shihosogantang-gami had been applied to the patient. Results: After treatment her Panic Disorder was improved. Conclusions: Shihosogantang -gami of Asian medical treatment could be safe and effective.

• The Journal of the Society of Stroke on Korean Medicine
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• v.20 no.1
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• pp.75-81
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• 2019

■ Objectives The purpose of this study is to report the improvement of dilated cardiomyopathy after traditional Korean medical treatment; herb-med, acupuncture, moxibustion. ■ Methods A patient with cardiomyopathy whose chef complaint was oversleep, shortness of breath, fatigue and coldness of hand-foot received inpatient treatment from September 2^nd 2019 to September 23^rd 2019. And we analyzed treatment progress and result. ■ Results We observed that traditional Korean medical treatment decreased symptoms; Fatigue by 30% and Coldness of hand-foot by 100%. And The patient's general condition is improved. ■ Conclusion We report this clinical study to be helpful in treating patients of dilated cardiomyopathy by traditional Korean medicine.