• Journal of Chest Surgery
• /
• v.27 no.11
• /
• pp.970-972
• /
• 1994

The Swyer-James syndrome is one of the very few condition that the density of one lung is markedly less than the density of the other and frequently presents a diagnostic problem. In 1989, we reported a case of Swyer-James Syndrome. Recently, we experienced a new case of this syndrome. Left upper lobectomy was performed and postoperative pneumonia was developed, but the patient was recovered.

• Proceedings of the Optical Society of Korea Conference
• /
• 1999.08a
• /
• pp.2-3
• /
• 1999

• Proceedings of the Optical Society of Korea Conference
• /
• 2008.07a
• /
• pp.65-66
• /
• 2008

• Journal of Chest Surgery
• /
• v.36 no.10
• /
• pp.784-788
• /
• 2003

Swyer-James syndrome is a rare disease with patients presenting with unilateral hyperlucent lungs and hypoperfusion due to hypoplasia of the pulmonary artery and bronchiolitis obliterans. A unilateral hyperlucent lung generally develops after a lower respiratory tract infection during early childhood. In extremely rare cases, an association of bronchogenic carcinoma with Swyer-James syndrome has been reported. We report a case of bronchogenic squamous cell carcinoma associated with Swyer-James syndrome that performed right upper lobectomy and lymph node dissection with a relevant literature review.

• Proceedings of the Korean Vacuum Society Conference
• /
• 2011.02a
• /
• pp.392-392
• /
• 2011

현재의 태양전지에 사용되는 wafer는 원가저감을 위해 점점 얇아지고 있는 추세이다. 하지만 wafer가 얇아질수록 장파장 영역의 광자는 충분히 활용할 수 없게 된다. 대부분의 광자는 50um 지점에 도달하였을 때 그 역할을 다하고 소멸하게 되며, 특히 800nm 이상의 장파장에 대한 generation rate는 wafer 두께에 따라 급격한 차이를 보이게 된다. 따라서 장파장 영역의 광자를 효율적으로 사용할 뿐만 아니라 원가 저감을 위해 더욱 얇아지고 있는 추세의 wafer의 장파장 이용을 보상하기 위해서 TCO를 이용한 back-reflector의 역할은 가장 좋은 해결책이 될 것이다. 본 연구에서는 Macleod를 이용하여 ZnO, Al-doped ZnO, TiN, TiO2와 같은 다양한 TCO 물질에 대한 다양한 simulation을 실시 하여 reflectance 특성을 알아보았다. 상기 simulation결과로써 Al-doped ZnO가 가장 reflectance 특성이 좋게 나타났었으며 이를 이종접합 태양전지에 적용하여 광학적 및 전기적 특성 변화에 대해서 분석하였다.

• Journal of Chest Surgery
• /
• v.22 no.2
• /
• pp.321-324
• /
• 1989

The Swyer-James syndrome is rare abnormality that may be encountered on routine chest X * ray examination and frequently presents a diagnostic problem. Recently, we experienced a case of Swyer-James syndrome which was accompanied with ipsilateral uncontrolled pneumothorax. We performed exploratory thoracotomy because of failure of re-expansion of the lung. Right pneumonectomy was performed and postoperative course was uneventful.

• Korean Journal of Optics and Photonics
• /
• v.20 no.1
• /
• pp.57-60
• /
• 2009

We consider introducing an optical thin film to the light guiding wall of a pixel in order to enhance the light guiding efficiency of a CMOS image sensor. Simulating the reflectance as a function of the incidence angle using the Essential Macleod program, we find that the range of total internal reflection is greatly increased for several materials. Particularly when air is chosen as the thin film material, the critical angle of total internal reflection could be shifted to about 50 degrees.

• Journal of Korean Ophthalmic Optics Society
• /
• v.16 no.2
• /
• pp.159-165
• /
• 2011

Purpose: In this paper, the reliability and reproductivity of anti-reflection (AR) coating on ophthalmic lens using optical monitoring system (OMS) were investigated. Methods: The random error simulation and RunSheet performance in Essential Macleod software to confirm possibility of AR coating using OMS were performed. The coating process of 19 batches was carried out in order to perform reproductivity test of AR coating after simulation process. Results: As a result, the coating results of 19 batches had shown the excellent reproductivity of about 0.5% error. Conclusions: We confirmed the excellent reproductivity and reliability of AR coating on ophthalmic lens using optical monitoring system from our results.

• Journal of Korean Ophthalmic Optics Society
• /
• v.6 no.2
• /
• pp.31-35
• /
• 2001

The anti-reflective anti-static(ARAS) optical film Was designed using conducting layer $TiN_x$ by Essential Macleod program. From this results, [air ${TiN_x{\mid}SiO_2{\mid}$ glass] two layer shows wide-band AR coating in the wavelength range of 450~700 nm. The $TiN_x$ thin films were prepared on the glass substrate by RF(radio-freqency) magnetron sputtering apparatus from a Ti target in agaseous mixture of argon and nitrogen with the thickness of 7~10 nm. For the films obtained, the chemical binding energy of the films was investigated by x-ray photoelectron spectroscopy(XPS) in order to analyze the chemical nature and composition of the films. In addition, we investigated the relationship between the surface resistance and the chemical nature the sheet resistance and XPS depth profiling the chemical binding of the films.

• Journal of Korean Ophthalmic Optics Society
• /
• v.5 no.1
• /
• pp.7-11
• /
• 2000

The anti-reflective anti-static (ARAS) optical film is designed using absorbent materials such as ITO, $TiN_xW_y$, Ag by Essential Macleod program. [air ${\mid}TiN_xW_y{\mid}SiO_2{\mid}$ glass] two layer shows wide-band AR coating in the wavelength range of 450~700 nm. The reflectivity, transmittance of this coating are below 0.5%, about 75%, respectively. [air $SiO_2{\mid}TiO_2{\mid}SiO_2{\mid}$, ITO glass] layer can adjust reflectance of below 0.5% with above 97% transmittance. In the [air ${\mid}SiO_2{\mid}TiO_2{\mid}SiO_2{\mid}$ Ag glass] layer, the transmission can be controlled at above 96% with reflectance of 1~2%.