• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
• /
• v.10 no.1
• /
• pp.5-11
• /
• 1999

Background and Objectives : Recently, many people suffering from voice change visit otolaryngologist. So, it is important to study vocal function in patients with glottic or laryngeal disease. Aerodynamic investigation is valuable information about the efficiency of the larynx in translating air pressure to acoustic signal. The purpose of this study was to investigate the aerodynamic data in patients with vocal polyp, compare this data with that of the normal Korean. Materials and Methods : In aerodynamic study, maximum phonation time, mean air flow rate, phonatory flow volume and subglottal pressure were tested by using Aerophone II voice function analyzer in 157 normal korean and 143 patients with vocal polyp, aged from 20 to 69 years randomly selected. Results and Conclusion : In vocal polyp, maximum phonation time was significantly decreased and mean air How rate was increased. Phonatory flow volume was significantly decreased and subglottic pressure was increased only in female with vocal polyp. These data will be served as basic data of evaluation after treatment and postoperative assessment of the patients with vocal polyp.

• Tuberculosis and Respiratory Diseases
• /
• v.56 no.2
• /
• pp.144-150
• /
• 2004

Background : An assessment of the presence and the degree of reversibility of airflow obstruction is clinically important in patients with asthma or chronic obstructive pulmonary disease. However, the time responses of spirometric parameters in response to bronchodilator have not been well investigated. Methods: We studied 15 patients with asthma. Spirometric and mini-Wright peak expiratory flow measurements were performed at 15, 30, 45, and 60 minutes after using single dose($200{\mu}g$) of inhaled bronchodilator, salbutamol. Results : The mean values of forced expiratory volume in one second($FEV_1$) and forced vital capicaty(FVC) were significantly increased at 60 minutes after using bronchodilator in comparison to 15 minutes. And peak expiratory flow rate measured by either mass flow sensor or mini-Wright peak flow meter were significantly increased at 45 minutes after using bronchodilator in comparison to 15 minutes. Conclusions : To appropriate evaluation of the bronchodilator response in patients with reversible airflow limitation, it would be useful measuring either $FEV_1$ or PEF at the later time point 60 or 45 minutes in comparison to 15 minutes after using bronchodilator.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.13 no.8
• /
• pp.3792-3799
• /
• 2012

The dedusting characteristics of pulse air jet type dedusting system which is widely applied in the industries were identified by utilizing the computational fluid dynamics (CFD) and the dedusting performance in modified shape of dedusting unit was compared in this study. The review on the dedusting air volume, air stream distribution and inflow velocity distribution on each shape of dedusting part showed that the case of installing the nozzle on the blow tube (Case-3) and the case of installing the double intaking tube to the venturi (Case-4 and Case-5) were more excellent than the structure (Case-1) which is widely applied in the field in its amplification effect on the air volume and extension of stream width. The specification of venturi was decided to apply the selected Case-5 for the option of the commercial back filter. It is considered that the dedusting air volume will be maintained in maximum in the case of 50 mm and 90 mm for the diameter of internal and external intaking pipe respectively.

• Journal of Convergence for Information Technology
• /
• v.9 no.2
• /
• pp.115-120
• /
• 2019

Chinese xian-xia films is a new genre that occurred through the fusion of the genre of martial arts and fantasy. This study analyzed the development of xian-xia films and the space aesthetics of xian-xia films through the miseenscene of the journey to the west films. In particular, the space for xian-xia in the films is divided into the human, urinary, heaven world and the space of conflict. It looks like the fantastic Middle Earth that Tolkien presented, however it is discriminatory in that it shows a highly Chinese appearance and overlapping world centered on the natural environment (the world of Mountains and Livers), such as mountains, deserts, caves, and grasslands, which usually appears in traditional martial arts history. Resently, the boom of journey to the west films is regarded as the change of the Chinese film industry under the influence of the development of IP (Intellectual Property) industry and the western fantasy genre in the 21st century China. This change marks the birth of the new Chinese fantasy "xian-xia" genre with the spirit of the present era that transcends the original world of journey to the west through the hybridization of the genre.

• Proceedings of the Korean Society of Dyers and Finishers Conference
• /
• 2006.11a
• /
• pp.87-90
• /
• 2006

• The Korean Journal of Soil Zoology
• /
• v.11 no.1_2
• /
• pp.16-19
• /
• 2006

A checklist on 61 species of chigger mites belonging to 12 genera and 2 families from Korean peninsula is suggested with Korean names of each taxon.

• Proceedings of the SAREK Conference
• /
• 2006.11a
• /
• pp.64-64
• /
• 2006

• The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
• /
• v.30 no.4
• /
• pp.39-45
• /
• 2001

본고에서는 천장형 냉난방기기가 중규모공간에 적용될 때의 온열환경적 쾌적성을 확보하기 위한 기술연구 동향과 아울러 중규모공간에 설치된 경우에 대한 온도 및 기류분포를 사례를 통하여 적용성에 대하여 평가하고자 한다.

• Cement
• /
• s.204
• /
• pp.38-40
• /
• 2014

대한상공회의소는 지난 10월 10부터 15일까지 남북경협기업 100개사와 국내 매출액 상위 200개사를 대상으로 '남북관계 전망과 향후 과제'에 관한 설문 조사를 실시하고 그 결과를 최근 발표했다. 이번 조사결과 국내기업 10곳 중 8곳이 남북통일이 매출확대와 신사업 기회 등 경영활동에 도움을 줄 것으로 기대했다. 그러나 남북 화해기류 지속 여부에 대해서는 신중한 의견을 내보인 기업이 절반을 넘었다. 여기서는 이 보고서의 주요 내용을 요약한다.

• Proceedings of the Korean Society of Fisheries Technology Conference
• /
• 2003.10a
• /
• pp.31-34
• /
• 2003

쥐치들망이란 원형의 상하 고리 테로 원통형 틀을 만들어 옆면과 아래면은 그물을 씌워 차단한 운통형 그물을 투양망할 수 있도록 구성된 어구를 수중에 부설하였다가 어군이 틀 안에 들어오면 들어 올려 잡는 도구를 일컫는다. 미끼 주머니에 법동 곤쟁이를 넣어서 어군을 그물 안으로 유집한다. 어기는 4∼10월이며, 어획물은 말취치, 쥐치, 자리돔, 놀래기류 등이며, 어획물을 살려서 귀항하여 활어로 출하한다. (중략)