• 대한전기학회논문지:시스템및제어부문D
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• 제51권3호
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• pp.122-128
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• 2002

In this paper, a robust pattern classification of breath sounds for the diagnosis of pulmonary dysfunction in noise environment is proposed. The feature parameter extraction method by highpass lifter algorithm and PM(projection measure) algorithm are used. 17 different groups of breath sounds are experimentally classified and investigated. The classification has been performed by 6 different types of combinations with proposed methods to evaluate the performances, such as ARC with EDM and LCC with EDM, WLCC with EDM, ARC with PM, LCC with PM, WLCC with PM. Furthermore, all feature parameters are extracted to 80th orders by 5th orders step, and all experiments are evaluated in increasing noise environments by degrees SNR 24dB to 0dB. As a results, WLCC which is derived from highpass lifter algorithm, is selected for the feature parameter extraction method. Pm is more robust than EDM in noisy environments to test and compare experimental results. WLCC with PM method(WLCC/PM) has a better performance in an increasing noise environment for diagnosis of pulmonary dysfunction.

• 대한한의학원전학회지
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• 제23권5호
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• pp.1-9
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• 2010

Chuneunja(天隱子) was publication that described the life nurturing(養生) of Taoism, consisted of 8 chapters. It was comparative primary writing and contained important contents in related to the life nurturing of Taoism. It belonged to the life nurturing of Taoism that influenced by Confucianism and Buddhism. It emphasized on the practical and rational thought that mastered morality by performing gradually. It showed the concrete asceticism method like to the basic regimen training of Taoism, for example mind control(調心), flesh control(調身), breath control(調息), conduction exercise(導引), raping teeth (叩齒法) and swallowing saliva(嚥津法). Oriental traditional regimen focused on realizing balanced human character by practicing human mind and body. It may show the direction to modern person that are troubled with harmful effect of modern civilization. If we throw away superstitious and unreal part in the traditional regimen and apply regimen in one's life, we may consider that regimen contribute to human health. Therefore, we require clear understanding for the classic data inherited from predecessors.

• 한국재료학회:학술대회논문집
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• 한국재료학회 2007년도 추계학술발표대회 및
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• pp.149.2-149.2
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• 2007

• 대한동의생리학회:학술대회논문집
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• 대한동의생리학회 2005년도 하계학술대회
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• pp.15-16
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• 2005

• 사상체질의학회지
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• 제20권3호
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• pp.184-189
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• 2008

1. Objectives Pneumothorax is defined as the presence of air or gas in the pleural cavity causing chest pain and shortness of breath. Primary spontaneous pneumothoraces (PSPs) occur in people without underlying lung disease or trauma to the thorax. We have tried researching effect of herbal medicine Doksampalmulkeunja-rang(獨蔘八物君子湯) in PSPs. 2. Methods This patient with PSPs which size was more than 30% of Rt. lung, who had been experienced the recurrences of PSPs in Lt. lung for three times, was treated by Doksampalmulkeunja-tang(獨蔘八物君子湯) diagnosed by Soeumin. 3. Results Doksampalmulkeunja-tang(獨蔘八物君子湯) was effective against the chest discomfort and shortness of breath. The chest test was improved. 4. Conclusions The treatment with herb-medicine may have effect on PSPs symptom of Soeumin by raising the stagnant yang qi. Further Sasang medical study on PSPs is needed for recurrence prevention.

• Macromolecular Research
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• 제17권9호
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• pp.666-671
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• 2009

Water repellent elastomeric surfaces were fabricated successfully on SBS/MWNT nanocomposites films using the breath figure method and subsequent thermal treatment. The uniformly dispersed CNTs were found to play significant roles in tuning the size and ordering of the macroporous morphology at the nanocomposite surface as well as enhancing the mechanical properties of nanocomposites. In particular, the CNTs dispersed in a nanocomposite solution retarded the coarsening process of aqueous droplets during the breath figure process and decreased the pore size in the finally fabricated film. The water contact angle measurement showed that the double-scale structure comprised of self-organized macropores and surface the roughness induced by a thermal treatment produced a highly water-repellent nanocomposite surface.

• 대한조선학회논문집
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• 제34권1호
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• pp.24-40
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• 1997

선체에 부착되는 부가물 주위의 유동 개선에 응용하기 위하여 평판과 스트럿이 만나는 접합부 주위에 fillet을 설치할 때 스트럿 주위의 유동이 어떤 영향을 받는 지를 수치계산을 통하여 살펴보았다. 높이 폭 비 및 곡률이 서로 다픈 5가지 형상의 fillet을 스트럿의 앞날 부근에 설치하고 각 경우에 대하여 스트럿에 작용하는 항력 및 스트럿의 후류를 계산하고 이를 비교하였다. 계산방법으로는 N-S 방정식을 풀기 위하여 MAC 방법이 사용되었고 유동은 Reynolds수 5000으로 층류이다. 계산결과 높이-폭 비가 작을 수록, 스트럿의 선단에서 만들어지는 horseshoe 보오텍스의 크기와 형상이 비슷할수록 그리고 오목한 곡률을 갖는 fillet이 스트럿의 항력 감소 및 후류를 균일하게 하는데 더 효과적인 것으로 나타났다.

• 전기학회논문지
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• 제62권10호
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• pp.1444-1450
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• 2013

Esophageal stethoscope is used for monitoring the heart sounds and breath sounds of patients during surgery under a general anesthesia. Recently, an electronic esophageal stethoscope (EES)[1] has been developed for the purpose of real-time monitoring these information visually. This system uses only a microphone as the sound sensor. A drawback of the EES system is that it may be difficult to distinguish the first sound ($S_1$) and the second sound ($S_2$) of heart, because their periods are irregular depending on patients. In this paper, we propose an improved EES system in which the infrasound is measured by adding a pressure sensor as well as a sound sensor. We investigate some correlations between the infrasound and characteristics of the heart sound. The proposed system has been tested on 15 patients. The results show that the new system is capable of detecting the first sound more reliably and easily determining the heart rate and breathing period.

• 센서학회지
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• 제23권5호
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• pp.291-294
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• 2014

In this study, a chemiresistive sensor based on one-dimensional $WO_3$ nanostructures is presented for application in non-invasive medical diagnostics. $WO_3$ nanostructures were used as an active gas sensing layer and were deposited onto a $SiO_2/Si$substrate using Pt interdigitated electrodes (IDEs). The IDE spacing was $5{\mu}m$ and deposition was performed using RF sputter with glancing angle deposition mode. Pt IDEs fabricated by photolithography and dry etching. In comparison with thin film sensor, sensing performance of nanostructure sensor showed an enhanced response of more than 20 times when exposed to 50 ppm acetone at $400^{\circ}C$. Such a remarkable faster response can pave the way for a new generation of exhaled breath analyzers based on chemiresistive sensors which are less expensive, more reliable, and less complicated to be manufactured. Moreover, presented sensor technology has the potential of being used as a personalized medical diagnostics tool in the near future.

• 한방안이비인후피부과학회지
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• 제23권3호
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• pp.216-224
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• 2010

Objective : The purpose of this study was investigated the effect of auricular Acupuncture treatment in Allergic rhinitis patients. Methods : This study was carried out on the 16 allergic rhinitis patients who had been treated at Cheongdogun public health center for The Good-Breath program. The Good-Breath program included auricular acupuncture was performed 2 times a week during 4 weeks. Auricular acupuncture points used were M101(肺), M13(副腎), M16(內鼻), M22(內分泌), M33(額), M55(神門). Patients nasal symptoms and QOL were assessed before and after 4 weeks treatment by the Severity Scoring Systems of Rhinitis(SSSR) and Quality of Life Questionnaire for Korean Rhinitisian(QLQKR). Results : 1. Total Severity Scoring Systems of Rhinitis(SSSR) Scores were significantly improved. but Each items was no significant difference. 2. Among items of QLQKR, Itching worry about western medicine worry about change of environment Role limitation-physical were significantly improved. and Total Quality of Life Questionnaire for Korean Rhinitisian(QLQKR) Scores were significantly improved.