온실가스 감축조치 예외 선박의 EEXI적용에 관한 연구

임효근,한기영,이지웅 한국해양환경·에너지학회 2023 한국해양환경·에너지학회지 Vol.26 No.4

It is regulated to reduce greenhouse gas and carbon dioxide emissions by 40% in 2030 and 50-70% in 2050 through the early, mid -term and long -term strategies around the International Maritime Organiza-tion (IMO). In particular, the initial strategy was enacted as a technical measure to enforce regulations through technical measures and operating measures, and the Ship Energy Efficiency Design Index (EEDI) for the new ship was enacted and the ship energy efficiency index (EEXI) was applied to the existing line. However, this regulation is not included in the regulation because domestic coastal ships, government lines, and practice ships are not included in the regulation, and regulatory applications are not included in the regulation. Vague. Therefore, this study selected a ship that was similar to the ships subject to the 11 ships to confirm whether the ship energy efficiency index and the carbon intensive index were subject to pen-alty, and to seek ways to reduce them. In the classification criteria, the classification of SPS Code was se-lected by the use of SPS Code and the classification coefficient of classification by the shape of the ship. As a way to reduce EEXI, it can be reduced by using carbon dioxide reduction technology or using the type of fuel oil used, and reduces the program that restricts the output of ship propulsion, or maintains the output of the ship to 35 ~ 53%compared to MCR(Maximum Continuous Rate). If you can satisfy the required EEXI.

초음파를 이용한 한국인 정상고관절의 계측에 관한 연구

임효근 대한영상의학회 1989 대한영상의학회지 Vol.25 No.2

The ultrasonography is very useful in evaluation of small amount of effusion in hip joint and has several advantages such as noninvasiveness easiness accuracy and no radiation hazard. The data of normal hip joint space and capsule is very important in ultrasonographic evaluation of inflammatory hip joint disease. However normal ultrasonographic data of hip joint has not been reported except in pediatric age. The purpose of this study was to evaluate and measure normal hip joint space and capsule and to provide the basic data for the clinical application, Healthy 70 males and 70 females who have had no past history and present clinical symptom of hip joint were examined with real time sector scanner (5MHz transducer) Width of hip joint spaces and thickness of joint capsule were obtained and analysed by statistical analysis. The results were as follows; 1. The average width of the hip joint space were 2.6$\pm$ 0.6mm(left) in females. There was no significant difference by sex. 2. The widths of the hip joint space were increased with aging and decreased after 6th decade(male) and 5 th decade(female). 3. The maximal difference of both hip joint spaces was 1.2mm and there was no significant difference in both side by sex and age. 4. The average thicknesses of hip joint capsule were 1.9$\pm$0,3mm(right) 1.7$\pm$0,2mm(left) in females. There wan no significant difference by sex. 5. The thicknesses of the hip joint capsule were increased with aging and were in plateau after 5th decade(male and female). 6. The maximal difference of both hip joint capsules was 0.9mm and there was no significant difference in both sides by sex and age. It is therefore considered that ultrasonography could be a very useful modality in diagnosis of hip joint disease in which the hip space and the hip joint capsule are changed by various etilolgies.

신생아의 부신출혈의 초음파에 의한 진단 및 추적검사

임효근,주인욱,배상훈,김광남 한림대학교의료원 1989 人間科學 Vol.13 No.3

단순흉부 X-선과 전산화단층촬영을 이용한 흉강내 신경종의 감별진단

임효근 대한영상의학회 1984 대한영상의학회지 Vol.20 No.4

35 neurogenic tumors of the thorax were analyzed with plain film and CT scan. Radiological analysis emphyasized shape, location, calcification, bone change, pleural change in plain film and calcification, cystic change, bone change, pleural change, presence of contrast enhancement in CT scan. The results were as follows: 1. Age may be the most important clinical factor for differential diagnosis. 2. Plain file findings (35 cases); 1) The most common shape in the ganglion series tumor (ganglioneuroma, ganglioneuroblastoma, neurolastoma), was elongation (80%) and these tumors generally had tapered borders (50%) in contrast with those of the genglion series, nerve sheath tumors (Schwannoma, neurofibroma, malignant Schwannoma) showed a definite tendency to be round (95%) and the sulcus effect was more frequently seen (67.5%) Most of the masses were smooth. The lobulated masses were commonly malignant ganglion series tumors. 2) Though overall incidence of calcification was low (8.6%) it was observed more frequently in ganglion series tumors (20%) 3) Associated bony abnormality were generally observed in large tumors above 5cm in long axis, especially in neuroblastoma and ganglioneuroblastoma. 4) Tumors showed pleural effusion were all malignant. 3. CT findings (17 cases); 1) The overall incidence of cystic change of the mass was 23.6% It was most common in Schwannoma (60%) 2) The contrast enhancement was noted in 64.7% it's degree was variable and showed no predilection to any specific tumors. 3) The incidence of calcification. associated bony abnormality and pleural effusion were similiar to plain film. confident specific diagnosis can be made in most of the neurogenic tumors of the thorax by shape of the mass in plain film and internal architecture in CT combined with patient's age as clinical information.

Ultrasound Contrast Agent Imaging in Liver Tumors

임효근 대한소화기학회 2002 대한소화기학회 세미나집 Vol.2002 No.-

There has been increasing consensus that the addition of contrast agents has significantly expanded the current role of US into diagnostic territories where CT and MRI have been dominant. Although the results of the recent reports are preliminary and further studies with a large population of patients are needed to clarify the definite role of contrast-enhanced US, current results are considered to provide a great potential in the detection, and characterization of hepatic tumors and evaluation of therapeutic response to local ablation therapy. Contrast-enhanced US studies are used in selected cases in which conventional ultrasound examinations are incomplete or difficult to perform. Wider use of contrast agents in ultrasound examinations will depend on diagnostic accuracy, patient outcomes, and cost-benefit effect. Even if the use of contrast agents needs more cost, they can be effective if they can improve the results of inadequate US studies or decrease the use of more expensive and invasive methods.

경피적 동맥색전술

임효근 대한영상의학회 1984 대한영상의학회지 Vol.20 No.1

Transcatheter embolization was done in 15 patients with various diseases at department of radiology, Seoul National University Hospital from September 1978 to July 1983 using absolute ethanol, autologous blood clots and gelfoam particles as embolic agents. The results were as follows; 1. Successful embolizations were done in 14 of 15 cases. (Success rate :93%). 2. Most of complication was postembolization syndrome such as fever, nausea, pain but minimal serious complication was very little. 3. Transcatheter embolization appears to be highly valuable adjuvant therapy in debulking of preoperative and inoperable hypervascular mass or treatment of bleeding from various etiology.

췌장의 거대세포암 일례보고

임효근 대한영상의학회 1983 대한영상의학회지 Vol.19 No.1

A case of a pleomorphic giant cell tumor of the pancreas in a 54 year old man is presented. It produced huge cystic mass in the pancreatic area ultrasonographically. Also multiple loculated pancreatic pseudocyst and multiple low densities in liver were presented in computerized tomography. Pathologically this case was a form of giant cell carcinoma which was called epulis-osteoid type, but the osteoid component in this case was not conspicuous.

폭발사고 환자의 안구 전산화단층 촬영(금속성 이물질의 발견 및 위치결정을 중심으로)

임효근 대한영상의학회 1988 대한영상의학회지 Vol.24 No.3

폭팔사고로 인해 안구손상을 받은 환자에 있어서 금속성 이물질의 발견 및 정확한 위치결정은 치료방향 및 예후에 매우 중요한 것으로 알려져 있다. 저자는 폭발사고로 인해 안구손상을 받은 10명의 환자의 전산화단층 촬영소견을 분석하여 안구내 금속성 이물질의 발견 및 위치선정에 있어서 전산화단층 촬영의 유용성과 문제점 및 그 해결방안에 대해서 문헌고찰과 함께 보고하는 바이다. It is realized that the detection and accurate localization of metallic foreign bodies within the orbit in the blast injured pacient is essential in the- treatment plan and prognosis. The author has experienced 10 cases of orbital computed tomography(CT) of the blast injury. Therefore, the author report the usefulness and problems of orbital CT for the detection and localization of metallic foreign bodies.

석회화된 요추간판탈풀증의 전산화단층촬영 소견

임효근 대한영상의학회 1987 대한영상의학회지 Vol.23 No.6

CT of 10 calcified herniated lumber discs among 46 operated cases were analysed at the aspects of incidence, location, shape, etc. RESULTS : 1. The incidence of calcificaton is 22%. 2. Among 10 cases, 3 cases are at the level of L4-5 disc space and 7 cases are at the level of L5-S1 disc space. 3. Central harniation are more common than posterolateral herniation. 4. Linear or band-like calcifications in the periphery of herniated disc are 6 cases and dense patchy calcification in the central portion of herniated disc are 4 cases. 5. Two cases of 4 cases with nucleus pulposus type calcification were found to be rupture. 6. Because more wide operation field and invasive exploration were required in calcified cases than non-calcified cases, it is suggested to evaluate the presence, location, and type of calcification in herniated disc in detail.

간암의 국소 치료

임효근 대한소화기학회 2001 대한소화기학회 춘계학술대회 Vol.2001 No.-