세미나 - 유니버설 디자인 적용을 위한 생활용품 패키지디자인 연구 - 샴푸, 바디워시를 중심으로 -

이경수,Lee, Gyeong-Su (사)한국포장협회 2015 包裝界 Vol.271 No.-

본 원고는 한국상품문화디자인학회 제41호 논문에 게재된 내용으로, 학회와 이경수 대표의 동의 아래 게재함을 밝힌다.

이경수 소장의 희망칼럼 - 핵융합, 녹색성장의 해답

이경수,Lee, Gyeong-Su 국가핵융합연구소 2009 핵융합뉴스레터 Vol.41 No.-

세계적으로 부는 녹색 붐. 선진국들은 기후변화 대응과 경기회복을 동시에 꾀하기 위한 다양한 그린정책을 내놓고 있고 우리 정부도 저탄소 녹색성장이라는 타이틀로 참여하고 있다. 정부가 핵융합기술을 녹색기술에 포함시킨 현 상황에서 국가핵융합연구소가 해야 할 일은 무엇인지 이경수 소장의 이야기를 들어보았다.

세미나 - 레토르트 패키지 디자인 연구 - 삼계탕과 육개장을 중심으로 -

이경수,Lee, Gyeong-Su (사)한국포장협회 2016 包裝界 Vol.273 No.-

본 원고는 한국상품문화디자인학회 제40호 논문에 게재된 내용으로, 학회와 이경수 대표의 동의 아래 게재함을 밝힌다.

신증후성출혈열의 단순흉부촬영소견

이경수 대한영상의학회 1988 대한영상의학회지 Vol.24 No.4

106명의 신증후성출혈열 환자의 단순흉부촬영 소견을 부선한 결과 6예의 폐부종, 3 예의 폐율혈, 3예의 늑막삼출, 1예의 심비대 및 1예의 피하기종을 관찰할 수 있었다. 폐부종 과 폐울혈은 핍뇨기 및 이뇨기에서 나타났고 특히 핍녀기가 일주일 이상 지속되는 경우 잘 관찰될 수 있었다. 늑막삼출과 심비대도 역시 핍뇨기 및 이뇨기에서 보였고 1예의 피하기종 은 이뇨기에 나타났다. BUN 및 creatinine처, 심전도 소견과 혈소판 수치는 위에서 언급한 흉부소견과 상관관계를 보이지 않았다. 다만 폐부종의 유형 핍뇨기의 지속또한 흉부촬영 소 견이 누출된 혈장이 돌아오는 핍뇨기에 많다는 소견 등은 수액과닥 흉부소견에 중용한 영향 을 미친다고 사료된다. Simple chest films of 106 cases of hemorrhagic fever with renal syndrome (HFRS) were reviewed retrospectively with clinical sequences. Renal type of Pulmonary edema (n=6), pulmonary congestion (n=3), pleural effusion (n=3), cardiomegaly (n=1) and subcutaneous emphysema (n=1) were the findings of thoracic manifestation of HFRS in order of frequency. Pulmonary edema and congestion were noted in oliguric and diuretic phases and noticeably seen when the oliguric phase was prolonged for more than 7 days (average oliguric phase, 3.3 days). Pleural effusion and cardiomegaly were also noted in oliguric and diuretic phases. Subcutaneous emphysema appeared in the diuretic phase. BUN/Cr level, EKG finding and platelet count didn't contribute to the thoracic findings. The type of pulmonary edema, in conjunction with the prolongation of the duration of oliguria and phase of revelation of thoracic findings suggest that fluid over load playa significant role in thoracic manifestation of HFRS .

모형축소실험을 이용한 토석류 방지시설 충격하중 평가

이경수,조성하,김진호,유보선,Lee, Kyung-Soo,Cho, Seong-Ha,Kim, Jin-Ho,Yoo, Bo-Sun 대한지질공학회 2017 지질공학 Vol.27 No.3

본 연구에서는 불투과형 사방댐과 링네트에 가해지는 충격하중을 평가하기 위해 토석류 모형축소실험을 수행하였다. 실험 결과, 토석류는 유체와 유사한 거동을 함에 따라 불투과형 사방댐 배면에 가해지는 토석류 충격하중은 하부구간이 4.14 kN로 가장 높게 작용하며 중간, 상부구간이 3.66 kN, 1.66 kN 가해지는 것으로 측정되었다. 링네트 실험결과 또한 불투과형 사방댐 결과와 같이 충격하중은 하부구간이 크며 상부로 갈수록 감소하는 경향을 보인다(2.28 kN, 1.95 kN, 1.49 kN). 수치해석 결과를 이용하여 토석류 흐름에 의한 토석류 방지시설 충격하중 흡수메커니즘을 분석한 결과, 불투과형 사방댐은 콘크리트 옹벽과 같이 구조물 자체의 강성을 이용하여 수평력에 저항하므로 실제 구조물에 작용한 수평력은 이론식과 유사한 결과가 제시되는 반면, 링네트는 강연선 탄성늘음과 네트 전면으로의 입자 투과를 이용하므로 충격하중은 사방댐 결과보다 최대 45% 감소하는 결과가 제시되었다. We use small-scale modelling to estimate the impact ofrce of debris flows on erosion control dams (ECD) and ring nets. The results indicate that the viscoelastic debris flows produced impact forces of 4.14, 3.66, 1.66 kN from the bottom to the top of the ECD. Ring net tests produced a similar trend with generally smaller impact forces (2.28, 1.95, and 1.49 kN). Numerical analysis showed that the weight of the ECD (e.g., concrete retaining walls) provided resistance against the debris flow, whereas deformation of the ring net by elastic-elongation and aggregate penetration reduced the impact force by up to 45% compared with that of the ECD.

폐 림파계평활근증식증 : 증례보고

이경수 대한영상의학회 1991 대한영상의학회지 Vol.27 No.2

We reviewed the radiologic, physiologic, and pathologic features of biopsy-proved pulmonary 1ymphangioeiomyomatosis(LAM) in 2 patients. Chest radiogra;hs showed diffuse increased interstitial lung markings with normal or slightly increased lung volume. The prominent computed tomographic(CT) feature was thin walled cysts throughout the lungs. Pulmonary function test showed a mixed obstructive and restrictive pattern in one and a mainly restrictive pattern in another, which was somewhat different from that of the reported cases. Proliferation of smooth muscle cells in the 1ymphatics, alveolar septae, vessels, and bronchioles wasthe pathologic finding.

전산화단층촬영을 이용한 방광암의 병기 결정

이경수 대한영상의학회 1985 대한영상의학회지 Vol.21 No.1

Staging of carcinoma of the urinary bladder is important for the choice of therapy and also has prognostic implications. Hitherto the staging has been based upon cystoscopy with biopsy, transurethral resection, and palpation with complementary radiographic examinations such as cystography, urography, lymphangiography, ultrasound and anglography. However, with all these methods, the staging of bladder carcinomas still uncertain and inferior to CT. Authors analyzed CT staging of bladder cancers and compared with pathologic staging of laparotomy results. The results are as follows: 1. Overall accuracy of CT staging in bladder carcinoma was 72 percent. 2. Overstaging was 20 percent (5/25) and understaging was 8 percent (2/25). 3. All of CT stage B cancers were proven to be stage B, pathologically. 4. In 6 cases of CT stagec cancers, only one was correct, 3 were overstaged and 2 were understaged. 5. In 7 cases of CT stage D cancers, 5 were correct and 2 were overstaged. 6. CT detec ed only 2 cases of pelvic lympy node involvement in 4 of pathologically proven lymphadenopathy.

가토폐의 Paraquat 중독 : 고해상 전산화단층촬영 소견과 병리소견과의 비교 연구

이경수 대한영상의학회 1992 대한영상의학회지 Vol.28 No.6

The authors evaluated high resolution computed tomographic (HRCT) findings of the isolated rabbit lungs with paraquat poisoning, and the findings were correlated with pathologic specimens. The purposes of this study are 1) to obtain the HRCT findings of the normal rabbit lung, 2) to find out if pulmonary pathology can be induced in rabbits by paraquat, and 3) to correlate the HRCT findings to those of pathology. Thirty rabbits were divided into three groups : group Iincluded four control rabbits; roup II included 16 rabbits given paraquat intraperitoneally (IP group); and group III included 10 rabbits given paraquat intravenously (IV group). The rabbits were sacrificed seven, 10 and 14 days after injection of various amount of paraquat, and then lungs were isolated for HRCT and pathologic studies. Gross and microscopic findings of the three groups of control and paraquat-injected rabbit lungs were correlated with HRCT findings. Pulmonary congestion, mild thickening of alveolar walls and septae, and multifocal micro-atelectasis were the main pathologic findings of the lungs in both groups of the rabbits. Pulmonary hemorrhage was noted in five (31%) of 16 rabbits of IP group and three (30%) of 10 IV group. Pulmonary edema was seen in one rabbit (6%) and IV (10%) group, respectively. There was no correlation between the amount of paraquat and frequency of the pulmonary pathology. Pulmonary fibrosis was seen at least one week after the paraquat injection. On HRCT, pulmonary hemorrhage and edema appeared as diffuse air-space consolidation and pulmonary fibrosis as linear or band-like opacities. However, minimal changes such as mild congestion, thickening of alveolar wall, and focal atelectasis were not clearly seen on HRCT. It is concluded that mild pulmonary congestion, mild thickening of alveolar walls and septae, and multifocal micro-atelectasis are the main pathologic features, while pulmonary hemorrhage and fibrosis are associated in the limited number of he paraquat lungs of the rabbits. The pathologic findings as well as the normal anatomy of the rabbit lung can be demonstrated on HRCT.

최숙정론

이경수 한국한시학회 1998 한국한시작가연구 Vol.3 No.-

종격동 종양의 전산화단층촬영 소견

이경수 대한영상의학회 1985 대한영상의학회지 Vol.21 No.3

Computerized Tomography can make accurate diagnosis in most of the mediastinal tumors and cysts by assessing their location, shape and internal architecture. Authors analysed and present CT findings of 89 surgically proven mediastinal tumpors and cysts that were studied and treated in Seoul National University Hospital during recent 5 years. The results are as follow: 1. The most common tumor was teratoma (25 cases). Neurogenic tumor (20 cases), thymic tumor or cyst (16 cases), lymphoma (7 cases), bronchogenic cyst (6 cases), intrathoracic goiter (6 cases), pericardial cyst (3 cases) and cystic hygroma (2 cases) were next in order of frequency. 2. The most constant findings of treatoma was thick walled cystic area (100%), while pathognomonic fat and calcified density were located I anterior mediastinum, 2 cases were in posterior mediastinum and a case is in middle mediastinum. 3. There were 20 cases of neurogenic tumor consiting of 6 neurilemmomas, 7 ganglioneuromas, 4 neurofi romas, 1 ganglioneuroblastoma, 1 neuroblastoma and 1 malignant schwannoma. Most of them were located in posterior mediastinum with exception of 2 neurilemmomas arising from left vagus nerve and left recurrent laryngeal nerve in middle mediastinum. Cystic change was seen in 2 cases of neurilemmoma and in a case of ganglioneuroma. Calcification was seen in 3 cases, of neuroblastoma, a neurilemmoma, and a ganglioneuroma. 4. There were 11 cases of thymoma showing homogeneous solid mass with speckeld calcification in 4 cases and irregular cystic change in 3 cases. 2 cases were invasive thymoma and myasthenia gravis was present in 4 cases. A case of thymolipoma and a case of thymic cyst were included. 5. Lymphoma(2 Hodgkin's and 4 non-Hodgkin's) appeared as lobulated, matted mass in anterior mediastinum especially in prevascular area expanding bilaterally. 6. Intrathoracic goiter appeared as slightly high density mass with intermingled calcification and cystic area in 5 cases of secondary oiter and homogeneous high density mass (100-110 H.U. in precountrast scan) in a case of primary goiter. 7. Among the 6 bronchogenic cysts, 3 were located in subcarinal area, 2 were above carina and one was in left hilar area. 3 cases showed high CT number more than 70 H.U. and others showed water density. 8. 3 cases of pericardial cyst were located in right cardiophrenic angle and all of them showed water density. 9. 2 cases of cystic hygroma were located in superior mediastinum, with extension to lower neck and all of them showed water density.