여러가지 antifoam 이 식물세포 현탁배양에 미치는 영향

김진우,김석우,이상윤,이규화,김동일 ( Jin Woo Kim,Suk Woo Kim,Sang Yun Lee,Gye Hwa Lee,Dong Il Kim ) 한국화학공학회 1996 화학공학의이론과응용 Vol.2 No.2

HID 램프용 반사갓의 3차원 설계법 개발

김진우,박종환,김진구,김훈,Kim, Jin-Woo,Park, Jong-Hwan,Kim, Jin-Gu,Kim, Hoon 한국조명전기설비학회 2003 조명·전기설비학회논문지 Vol.17 No.2

기존의 2차원 설계법을 이용하여 3차원 압출성형 HID 경면 반사판형상 설계에 적용할 수 있는 3차원 설계법을 개발하였다. 이 설계법을 적용하여 터널용 HID 조명기구의 반사판 형상을 설계하고 그 성능을 예측하였다. Using pervious two-dimensional reflector design method, the three-dimensional reflector design method is developed for extrusion molding HID specular reflector optical design, Using this method, a HID reflector for tunnel was developed and estimated its performance.

철근콘크리트 깊은 보의 현행 스트럿-타이 설계기준에 대한 비교 및 평가

김진우,홍성걸,이영학,김희철,김대진,Kim, Jin Woo,Hong, Sung-Gul,Lee, Young Hak,Kim, Heecheul,Kim, Dae-Jin 한국전산구조공학회 2014 한국전산구조공학회논문집 Vol.27 No.4

콘크리트 깊은 보의 전단강도 산정을 위해 현행 미국콘크리트학회(ACI) 및 캐나다표준규격협회(CSA), 유럽콘크리트위원회(CEB-FIP)의 설계기준은 스트럿-타이 모델을 이용할 것을 제안하고 있지만 설계의 품질이 설계자가 구성한 트러스 모델 적합성에 크게 좌우된다는 특징을 가지고 있다. 따라서 본 논문에서는 내부 트러스 모델에 따른 현행 ACI, CSA 및 CEB-FIP의 콘크리트 깊은 보 설계기준의 타당성을 홍성걸 등에 의해 제안된 콘크리트 소성학에 근거한 전단강도식의 예측치와 비교함으로써 평가한다. 비교 결과 ACI, CSA 및 CEB-FIP의 스트럿-타이 모델에 의해 설계된 깊은 보의 경우 내부 트러스 모델이 전단강도 예측에 중요한 영향을 미치는 것으로 나타났으며 CEB-FIP의 경우 가장 높은 스트럿 강도 예측치를 보였다. The current American Concrete Institute(ACI), Canadian Standard Associate(CSA) and CEB-FIP Model Code 2010 provisions on the shear strength of a simply supported deep beam suggest that deep beams should be designed using the strut-and-tie model. Although this is a useful methodology to design members in disturbed regions, the quality of the design is highly dependent on the truss model that designers create. However, Hong et al. derived the shear strength equations of reinforced concrete deep beams. This thesis investigates the validity of the current ACI, CSA and CEB-FIP code provisions on the shear strength of simply supported reinforced concrete deep beams by comparing them with the shear strength equations proposed by Hong et al. The comparison shows that all of these code provisions provide reasonable estimates on the shear strength of concrete deep beam members and the selection of an internal truss model plays an important role on the estimation of shear strength.

미세구조 제어를 통한 (Nd,Dy)-Fe-B 소결자석의 보자력 증가

김진우,김세훈,김영도,Kim, Jin-Woo,Kim, Se-Hoon,Kim, Young-Do 한국분말야금학회 2011 한국분말재료학회지 (KPMI) Vol.18 No.1

Sintered Nd-Fe-B magnets are widely used in many fields such as motors, generators, actuators, microwaves and so on due to their excellent magnetic properties. Many researchers have shown that the Nd-rich phase was essentially important for high magnet properties. In this study, we focused on controlling of the Nd-rich phase to enhance magnetic properties by the cyclic sintering process. Nd-Fe-B based sintered magnets were prepared by isothermal sintering and cyclic sintering processes. Magnetic properties and microstructure of the magnets were investigated. The coercivity was enhanced from 21.2 kOe to 23.27 kOe after 10 cycles of the sintering. The Nd-rich phase was effectively penetrated into the grain boundary between the $Nd_2Fe_{14}B$ grains by the cyclic sintering.

수면 호흡 생리

김진우,이상학,Kim, Jin-Woo,Lee, Sang-Haak 대한수면의학회 2009 수면·정신생리 Vol.16 No.1

Regulation of respiration differs significantly between wakefulness and sleep. Respiration during wakefulness is influenced by not only automatic control but also voluntary and behavioral control. Sleep is associated with definite changes in respiratory function. With the onset of sleep, voluntary control of ventilation that overrides automatic control during wakefulness becomes terminated. Also ventilatory response to various stimuli including hypoxemia and hypercapnia is decreased. With these reasons respiration during sleep becomes fragile and unstable so that marked hypoxemia can be happened in patients with lung disease especially during REM sleep. Obstructive sleep apnea may also be developed if upper airway resistance is increased in addition to these blunted ventilatory responses.

폐렴치료 중 발견된 원발성 기관지내 평활근종 1예

김진우,이상학,Kim, Jin-Woo,Lee, Sang-Haak 대한기관식도과학회 2009 大韓氣管食道科學會誌 Vol.15 No.2

기관지내 평활근종은 기관지의 폐쇄정도에 따라 호흡곤란, 기침, 천명 등의 다양한 증세를 동반하며 그 증상이나 폐쇄정도가 경미할 경우 흉부 X-선 검사에서는 이상소견이 관찰되지 않을수도 있다. 따라서 폐렴이나 천식 등의 치료를 하다가 뒤늦게 발견되는 경우가 있는데 이 경우 반복적인 폐쇄성 폐렴과 폐농양, 기관지 확장증 등의 비가역적인 폐손상이 유발되며, 이는 전폐 절제술 등의 치료를 요하기도 한다. 따라서 무엇보다도 기관지내 평활근종의 치료 목표는, 증상에 따른 기관지내 병변의 의심과 기관지경에 의한 정확한 조기 진단과 보존적 수술, 내시경적 치료에 의해 비가역적인 폐손상을 방지하고 폐기능을 최대한 유지하는 것이다. 본 증례는 항생제 치료에 반응하지 않는 지속적인 폐렴으로 전원되어 온 환자에서 기관지경시행 후 기관지내 평활근종을 진단한 경우로, 이와 같은 경우 기관지내 병변의 가능성에 대해 반드시 고려하고 조기에 기관지경을 시행하여 정확한 진단을 하는 것이 무엇보다 중요하다고 하겠다. A 44 year-old nonsmoker female presented to our hospital with persistent cough with sputum for three months. She had been diagnosed as pneumonia and treated with antibiotics in a local hospital but was transferred to our hospital because of no symptomatic improvement. We performed flexible bronchoscopy and found an ovoid and smooth surfaced mass obstructing the bronchus of right middle lobe. The biopsy specimen revealed a benign tumor composed of spindle cells without dysplasia consistent with leiomyoma. There was no evidence of leiomyoma in uterus. The right middle lobectomy and bronchoplasty were performed and the patient was healthy twelve months later. Primary endobronchial leiomyoma is a rare benign tumor of the lung. Herein we report a case of primary endobronchial leiomyoma diagnosed during treatment of pneumonia.

The Calculation of Stress Intensity Factors in the Orthotropic Elastic Plate with the Cracked Circular-hole using a Contour Integral Method

김진우,Kim, Jin-Woo The Korea Institute of Military Science and Techno 2005 한국군사과학기술학회지 Vol.8 No.4

특이응력해석을 위한 일반화된 가역상반일 경계적분식이 섬유강화복합재를 모형화한 직교 이방성 크랙평판의 수치해를 위하여 발전시켰다. 이 적분방정식은 평판경계에서의 탄성변위와 트랙션의 변수로 구성된 경계적분식의 형태로 하중이 없다는 두 크랙면의 경계조건과 유한의 탄성변형에너지의 개념에서 경계적분식에 필요한 특성해를 규정하고 대응되는 보조해를 계산하였다. 대칭모우드 I형의 중앙원공크랙평판 및 복합모우드형의 반원편측크랙 일단고정평판의 응력확대계수가 임의의 섬유방향각에 따라서 계산되었다.

간헐외사시에서 외직근후전술 시 술 후 외편위로의 회귀: 동반된 수술 방법에 따른 비교

김진우,이종혁,라상훈,Jin Woo Kim,Jong Hyuck Lee,Sang Hoon Rah 대한안과학회 2011 대한안과학회지 Vol.52 No.11

Purpose: To assess the difference in the change of postoperative ocular alignment in intermittent exotropia corrected by horizontal muscle transposition or inferior oblique muscle recession together with lateral rectus muscle recession. Methods: A total of 110 patients with intermittent exotropia with a follow-up period of more than 6 months after lateral rectus muscle recession were enrolled in the present study. The patients who received lateral rectus muscle recession only were classified as group 1, patients who received both lateral rectus muscle recession and horizontal muscle vertical transposition in both eyes were classified as group 2, and patients who underwent lateral rectus muscle and inferior oblique muscle recession were classified as group 3. The differences in postoperative ocular alignment among the patient groups were compared. Results: Among the 3 groups, group 2 demonstrated the smallest amount of esotropic deviation in mean postoperative ocular alignment measured 1 day and 1 month after surgery. There was no significant difference among the groups in the mean postoperative ocular alignment and mean amount of exotropic drift at 6 months. The difference in the amount of postoperative exotropic drift 1 year after surgery among the 3 groups was statistically significant. The largest amount of postoperative exotropic drift was observed in group 1. Conclusions: In correcting intermittent exotropia, the largest amount of postoperative exotropic drift was observed in patients who received only lateral rectus muscle recession. By contrast, the smallest amount of postoperative exotropic drift was observed in patients who received lateral rectus muscle recession with vertical transposition of the horizontal muscle. J Korean Ophthalmol Soc 2011;52(11):1326-1330

'공동주택단지 조성을 위한 지구단위계획 수립기준'에 대한 전문가집단 간 인식 차이 분석

김진우,오세규,류영국,Kim, Jin-Woo,Oh, Se-Gyu,Ryu, Yong-Guk 한국주거학회 2012 한국주거학회 논문집 Vol.23 No.2

This study aims to understand differences in what specialists groups think important to establish district units plans. The result of the study is as follows. There were differences in thinking by specialists on standards and procedure of establishment, characteristics of the plans. For the standards of establishment, there was a remarkable difference in thinking on the importance. In the search for the importance on the establishment procedure, the groups of architects, construction firms, researchers and professors & instructors thought listening to opinions of residents important and public officials considered review by the City Planning Council important. In the survey on characteristics of district units plans, the most respondents answered 'plans leaded by private sectors focusing on residents' and 'plans to practice for actualization of urban plans'. Public officials and researchers answered that district units plans should be practical plans for actualization of urban plans with strong characteristics of work. The groups of architects, construction firms and professors/instructors mostly thought that private sector leaded plans focusing on residents as characteristics of district units plans. It was understood that construction firms think that the parts related to conditions for construction across overall standards of establishment, procedure of establishment are important. The specialists who think that the plans should be private sector leaded plans focusing on residents on which the residents' opinions are reflected were the groups of architects and professors/instructors.

안허혈증후군 환자에게 유리체강내 베바시주맙 주입 후 발생한 급격한 시력저하

김진우,윤이나,Jin Woo Kim,Ie Na Yoon 대한안과학회 2012 대한안과학회지 Vol.53 No.12

Purpose: To report a patient with ocular ischemic syndrome who suffered from sudden decrease in visual acuity after bevacizumab injection. Case summary: A 70-year-old patient visited the Department of Ophthalmology due to progressively decreasing visual acuity in the right eye. Corrected visual acuity in his right eye was 0.1 on the first visit; ocular ischemic syndrome was suspected. Despite panretinal photocoagulation, severe iris neovascularization was still present in the right eye. Intravitreal bevacizumab injection was performed to regress the iris neovascularization. One day after injection, iris neovascularization regressed significantly, however, visual acuity was decreased to finger counting. Conclusions: In ocular ischemic syndrome, bevacizumab injection for reduction of iris neovascularization should be carefully considered due to possibility of acute visual loss.