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편측폐환기 및 폐부종에서 호흡요법이 심혈관계와 혈액가스에 미치는 영향
최병권,양홍석,이채성 대한마취과학회 1988 Korean Journal of Anesthesiology Vol.21 No.3
Nowadays, the importance of respiratory therapy is increasing with the development of modern medicine. Especially effective roupiratory care in the field of anesthesia and intensive care unit has close releatinship to the decrease of mortality or morbidity of the critically ill patients. Compared with spontaneous respiration, so various phusiological changes related to these methods can occur. Because most modernized ventilations can choose the various respiratory pattens according to the patients' respiratory condition, it is ideal to select the respiratory mode which is least hazardous and most effective to the patients. To confirm the effects of respiratory therapy on the cardiovascular system and arterial blood gas in one-lung ventilation and in pulmonary edema, we made one-lung ventilation by deep right endobronchial intubation and pulmonary edema was induced by oleic acid (0.05g/kg. IV) to 12 mongrel dogs. And we ovserved the cardiovascular changes and arterial blood gas analysis in the situation of applying the inspiratory pause (0.25 sec. and 0.5 sec) and positive end-expiratory pressure (5 cm H_2O and 10 cm H_2O). The results were as follows: 1) One-Lung Ventilation (1) Insipratory pause There were no changes of cardiovascular system and arterial blood gas in the inspiratory pause of 0.25 and 0.5 sec. (2) PEEP In 5 cmH_2O of PEEP there was no change of cardiovascular system, but there was decrease in PCO_2(P<0.01) on arterial blood gas. In 10 cmH_2O of PEEP there was increase in heart rate(P<0.05) and decrease in cardiac output(P<0.05). THere was decrease in PCO_2(P<0.01), but there were no changes of pH and PO_2 on arterial blood gas. 2) Pulmonary Edema (1) Inspiratory pause There was increase in heart rate(P<0.01), but there was no change of arterial blood gas in the 0.25 and 0.5 sec. inspiratory pause. (2) PEEp In 5 cmH_2O of PEEP there was incrase in heart rate(P<0.01), but there was no change of arterial blood gas in the 0.25 and 0.5 sec. inspiratory pause. In 10 cmH_2O of PEEP there decreas in sBP,dBP,MAP,increase in heart rate(P<0.05) and decrease in cardiac output(P<0.01). There were increase in pH(P<0.05) and PO_2(P<0.01), decrease in PCO_2. According to the above results in the condition of one-lung ventilation mechanical ventilation with inspiratory pause (0.25 or 0.5 sec.) was not helpfur to respirrotry care. 5 cmH_2O PEEP could improve the pulmonary ventilation without ay changes of cardiovascular system, but 10 cm H_2O PEEP increased heart rate and decrease cardiac output. In the condition of pulmonary edema, mechanical ventilation with inspiratory pause (0.25 or 0.5 sec.) could not improve the pulmonary ventilation with depression of cardiovascular system. PEEP (55 or 10 cmH_2O) could improve the pulmonary condition in proportion to PEEP, but it also depressed the cardiovascular system. Therefore we concluded that mild degree PEEP(5 cmH_2O) may be helpfurl to the one-lung ventilation or pulmonary edema.
최병권,김기식,권오성,서재범,이종빈,Choi, Byoung-Kwon,Kim, Ki-Sik,Kwon, O-Sung,Seo, Jae-Bum,Lee, Jong-Bin 대한기관식도과학회 2004 大韓氣管食道科學會誌 Vol.10 No.2
The lodgement of foreign material in the larynx is potentially life thereatening as complete obstruction of this region does not leave the individual with a viable airway. In the literature review, laryngeal foreign bodies accounted for about $3\%$ of the whole foreign bodies in the air passage. This report describes a rare case of laryngeal obstruction by subglottic foreign body(tooth) occurred during tooth extraction, in which repeated Heimlich maneuver failed to expel the foreign body and aggravated airway obstruction.
분광 영역 모드록킹 레이저를 이용한 공진형 광섬유 격자 센서
최병권,전민용,Choi, Byeong Kwon,Jeon, Min Yong 한국광학회 2012 한국광학회지 Vol.23 No.5
We report a resonance fiber Bragg sensor interrogation based on a Fourier domain mode-locking (FDML) laser. The FDML laser is constructed based on a conventional ring laser cavity configuration with fiber Fabry-Perot tunable filter (FFP-TF). There are two sensor parts which are composed with two FBGs inside the laser cavity. Each sensor part provides a separate laser cavity for the FDML laser. The resonance frequencies of the laser cavities are 46.687 kHz and 44.340 kHz, respectively. We applied a static and a dynamic strain on the FBG sensor system. The slope coefficients of the measured relative wavelength shift and relative time interval from the static strain are found to be $0.61pm/{\mu}{\epsilon}$ and $0.8ns/{\mu}{\epsilon}$, respectively. 본 논문은 분광 영역 모드록킹(Fourier domain mode-locking: FDML) 레이저를 기반으로 공진형 광섬유 격자 센서를 구현한 결과를 보고한다. FDML 레이저는 파브리-페롯 가변 필터를 이용하여 링 형태로 구성하며, 레이저 공진기 안에 광섬유 격자 2개를 한 쌍으로 하여 센서부 2개를 삽입한 구조이다. 광섬유 격자는 반사 거울 역할을 하며, 광섬유 격자의 위치에 따라 독립된 FDML 레이저 공진기를 구성한다. 각각 센서부의 공진 주파수는 46.687 kHz 와 44.340 kHz이다. FBG 센서 시스템에 정적 및 동적 스트레인을 가하였으며, 정적 스트레인에 대해 파장 영역과 시간 영역에서 측정된 스트레인에 대한 변화율은 각각 $0.61pm/{\mu}{\epsilon}$, $0.8ns/{\mu}{\epsilon}$ 이다.
최병권 한국무역보험학회 2011 무역금융보험연구 Vol.12 No.4
지금까지 물류는 육해공을 통해 싸게, 화물 손상 없이, 신속하게 원자재를 공장으로, 상품을 최종 소비자로 보내는 것을 최고의 가치로 삼아 왔다. 물류보안체제의 구축은 국제 테러의 예방에 따른 인명과 재산의 보호라는 본래의 목적과 함께 교역의 촉진도 의도한 것이다. 또한 물류보안사 업은 새로운 관련 기업에 대하여 새로운 시장을 제공하고 있으며, 향후 해당 시장규모가 증대될 전망이다. 이에 따라 주요 선진국과 국제기구들은 물류보안체제를 구축하기 위한 제도를 시행하고 있다. 9·11 테러 이후 우리나라도 공항과 항공의 경우는 2002년 8월에 기존 「항공기 운항안전 법」을 「항공안전 및 보안에 관한 법률」로 전면 개정해서 항공안전 및 보안을 강화하였으며, 동 법률을 지난 2010년 3월 22일에 공포하고 9월 23일 시행하여 항공보안검색을 강화하기 위해 노력하고 있다. 그러나 공항 및 항만에서 세관당국의 노력만으로는 외국으로 수출입 되는 모든 화물들을 효과적으로 관리, 통제하는 것은 한계가 있다. 육상운송에 대한 보안확보가 마련되어 전체 공급사슬에서의 보안확보를 완비해야할 필요가 있다.