宮南址 出土 水浸木材 保存에 대한 硏究

서정호,조정임 공주대학교 문화재보존과학연구소 2004 문화재과학기술 Vol.3 No.1

충남 부여군 궁남지에서 출토 수침목재(waterlogged wood)의 가장 안정화된 보존처리를 위하여 현재 국내에서 일반적으로 사용하는 PEG함침법, Sorbitol, Sucrose 방법을 이용하여 가장 이상적인 보존처리 방법으로 유물의 손실을 막는 방법을 연구하였다. 본 연구의 실험에서 중량 변화와 수축을, 그리고 처리 후 내부조직 및 색변화와 습도변화에 따른 중량 및 수축 변화를 비교 검토해 본 결과 상호간에 아주 밀접한 관계가 있다는 것을 알 수 있었다. 각 drug에 따른 중량변화는 PEG, Sucrose는 10%에서 약간의 중량 증가를 보이는 반면, 가장 높은 수축을 나타내었다. 또한 약품침투 및 퇴적이 급격히 증가하는 처리농도 30%부터 50%까지 중량은 급격히 증가하고 수축은 감소를 보이며 약품침투 및 퇴적에 의한 표변 및 내부조직의 변화를 관찰 할 수 있었다. 그리고 분자량이 낮아 약품침투 및 퇴적이 용이한 Sucrose나 Sorbitol가 고분자량의 PEG에 비해 중량변화가 높음을 알 수 있었다. For the most stable conservation on waterlogged wood excavated at Kungnamji in Buyeo, Chungnam, the method which prevents the damage of remains is studied with the most ideal conservation method by using the methods of PEG treatment, Sorbitol and Sucrose which are commonly applied in the country nowadays. In the experiment on this study, comparison and investigation to changing of weight and constricted, inner structure and color changing after the treatment, and changing of weight and constricted according to the changing humidity proves that they are closely and mutually connected. In the sense of changing of weight by each drug, PEG and Sucrose shows a little weight increase at 10% but indicates the highest constricted. Also, at the treatment consistency from 30% to 50% which drug permeation and accumulation increases rapidly, weight increases rapidly, deflation rate falls off and changing of inner structure and surface by drug permeation and accumulation is observed. And changing of weight is higher for Sucrose and Sorbitol, which drug permeation and accumulation is ease because of low molecular weight than PEG which has high molecular weight.

토론 2

서정호 한국출판연구소 2012 출판포럼 Vol.63 No.-

기후변화 적응을 위한 우리나라 수문학적 가뭄 위험도 평가

서정호,지혜원,김혜진,김연주,Seo, Jungho,Chi, Haewon,Kim, Heey Jin,Kim, Yeonjoo 한국수자원학회 2022 한국수자원학회논문집 Vol.55 No.6

As natural disasters have been increasing due to climate change, sustainable solutions are in need to alleviate the degree of drought hazard, assess and project the drought influence based on future climate change scenarios. In assessing drought risk, socio-economic factors of the region must be considered along with meteorological factors. This study categorized drought hazard, exposure, and vulnerability as three major components of drought risk according to the Intergovernmental panel on Climate Change (IPCC) risk assessment framework, and selected indices for each component to quantify the drought risk in South Korea according to the mid-size basins. Combinations of climate scenarios (Representative Concentration Pathway; RCP 2.6 and RCP 8.5) and socio-economic scenarios (Shared Socio-economic Pathways; SSP 1, SSP2 and SSP3) for the near future (2030-2050) ant the far future (2080-2099) were utilized in drought risk analysis, and results were compared with the historical data (1986-2005). In general, the drought risks for all scenarios shows large increases as time proceeds to the far furture. In addition, we analyzed the rank of drought hazard, exposure, vulnerability for drought risk, and each of their contribution. The results showed that the drought hazard is the most contributing component to the increase of drought risk in future and each basin shows varying contributing components. Finally, we suggested countermeasures for each basin according to future climate change scenarios, and thus this study provides made the basis for establishing drought management measures.

유방촬영에서의 유방동맥 석회화: 초음파 검사에서의 경동맥 동맥경화증과의 연관성$^1$

서정호,Seo, Jeong-Ho 대한영상의학회 2002 대한영상의학회지 Vol.46 No.1

Purpose: To investigate the incidence of breast arterial calcification in Korean women, and to determine its association with systemic diseases and carotid arterial atherosclerosis. Materials and Methods: One thousand seven hundred and thirteen female subjects who underwent mammography at a health care center between May 1999 and May 2000 were included in this study. Of the total, 172 were found to have breast arterial calcification, and were classified according to age. The coincidence of hypertension, diabetes mellitus and hyperlipidemia was examined in both the subject group and the control group selected on the same age basis. To investigate the presence and degree of carotid atherosclerosis, sonographic imaging was performed and the findings were compared between the two groups. Results: The incidence of breast arterial calcification showed statistically significant differences according to age, with a higher incidence in older patients (p<0.05). However, there was no statistical difference in the incidence of hypertension, hyperlipidemia, and diabetes mellitus between groups. Carotid atherosclerosis was subjects more prevalent among subjects than in the control group (p<0.05), though there was no statistically significant difference in the degree of luminal stenosis. Conclusion: The most common pathologic cause of breast arterial calcification is arteriosclerosis. Breast arterial calcification is demonstrated at mammography, along with other clinical risk factors for atherosclerosis or coincidental neurologic symptoms. We stress that further evaluation of the carotid artery is necessary.

심방-폐동맥 문합술 후 총 체정맥-폐동맥 문합술로의 전환 - 수술 적응증 및 혈역학적 특징의 검토 -

서정호,이종균,최재영,설준희,이승규,박영환,조범구,Seo, Jung Ho,Lee, Jong Kyun,Choi, Jae Young,Sul, Jun Hee,Lee, Sung Kyu,Park, Young Whan,Cho, Bum Koo 대한소아청소년과학회 2002 Clinical and Experimental Pediatrics (CEP) Vol.45 No.2

Purpose : Since the successful application of total atrio-pulmonary connection(TAPC) to patients with various types of physiologic single ventricles in 1971, post-operative survival rates have reached more than 90%. However some patients have been shown to present with late complications such as right atrial thrombosis, atrial fibrillation and protein losing enteropathy eventually leading to re-operation to control the long-term complications. The aim of this study is to review the results of total cavo-pulmonary connection(TCPC) in cases with late complications after TAPC. Methods : Between Jan. 1995 and Dec. 2000, 6 patients(5 males and 1 female) underwent cardiac catheterization $11{\pm}3$ months after conversion of previous TAPC to TCPC. We compared the hemodynamic and morphologic parameters before and after TCPC and also assessed the clinical outcomes. The indications for TAPC were tricuspid atresia in 4 cases and complex double-outlet right ventricle with single ventricle physiology in 2 cases. Results : There was no peri-operative mortality and all patients were clinically and hemodynamically improved at a mean follow-up of 11 months(range : 4 to 13). However, protein losing enteropathy recurred in 2 patients; this was were successfully treated with subcutaneous administration of heparin. Right atrial pressure before TCPC was $18.0{\pm}3.6mmHg$, but baffle pressure, corresponding to right atrial pressure decreased to $14.8{\pm}3.6mmHg$ after TCPC. The size of the pulmonary arteries did not regress after TCPC. Conclusion : The conversion of TAPC to TCPC improves clinical and hemodynamic status by decreasing the right atrial pressure and by providing a laminar cavo-pulmonary flow which enhances the effective pulmonary circulation in the so-called Fontan circulation.

췌주사에 의한 췌장질환진단

서정호 대한의학협회 1978 대한의학협회지 Vol.21 No.9

불완전 균류 Aureobasdium pullulans으로 납을 제거하기 위한 인자들과 흡착모델

서정호,서명교,정경태,이용희,Suh, Jung-Ho,Suh, Myung-Gyo,Chung, Kyung-Tae,Lee, Yong-Hee 한국생명과학회 2006 생명과학회지 Vol.16 No.6

An alternative method to remove and recover heavy metals is biosorption based on metal-sequestering properties of natural or biological origin. In this study, the effects of factors such as temperature, pH, initial concentration of lead, and initial amount of biomass on biosorption of lead using Aureobasdium pullulans were investigated. A. pullulans has an excellent selectivity to remove lead than other heavy metals such as cadmium, chromium, nickel in pure and mixed solution. The optimum temperature of biosorption with A. pullulans was $40^{\circ}C$ and the amount of removal increased at high pH. The higher initial lead concentration or the lower cell dry weight, the higher amount of lead was adsorbed. The adsorption isotherm of lead was accorded with Freundlich model. The adsorption capacity and initial adsorption rate of living A. pullulans were about twice higher than that of dead one.

경추간판 탈출증의 방사선학적 고찰

서정호 대한영상의학회 1978 대한영상의학회지 Vol.14 No.1

Cervical disc herniation is relatively common and can produce neurological changes which mimic another neural compression diseases. Radiological diagnosis of cervical disc herniation is usually not difficult. But the myelographic deformities simulating an intra-medullary tumor and cervical spondylosis also can be produced by cervical disc disease has been experienced. And so we reviewed radiographic changes of 38 cases of confirmed cervical disc herniation. It is the purpose of this review to establish the roentgen signs of cervical disc herniation in differential diagnosis. The results are: 1. 25 cases of 38 confirmed cervical disc herniation (66%) have single involvement and 13 cases involved multiple levels. Most of them (92%) were located at C5-6 and C6-7. 2. On plain view of cervical spine, most of cases showed degenerative changes and only two cases were normal. Disc space narrowing were seen in 74% of cases and 7 cases have moderate degree of spurring at neurocentral jo nts. Both cervical spondylosis and disc protrusion produced superimposed in many cases. 3. On myelography, 32 of 38 cases (84%) showed the extradural defects on pantopaque column at the interspace levels and 11 cases showed nerve root thickening. It was not difficult to diagnose myelographically in most of these cases and myelographic findings were well correlated to surgical findings in the location and the type. 4. 6 cases showed partial or complete obstruction of pantopaque column in which it was difficult to differentiate from other spinal cord lesion and the lateral view of myelographic study and the radiographic changes in the plain view were helpful to differentiate.

Computed Tomography 에 의한 뇌수막종의 진단

서정호 대한영상의학회 1980 대한영상의학회지 Vol.16 No.1

A review of CT findings in 3- cases, histologically proven cases of intracranial meningiomas is presented. The majority of intracranial meningiomas revealed with classical CT features including, juxtadural locations, sharp mass delineation, high attenuation without contrast and homogenous contrast enhancement .By these criterias, the diagnosis of menigniomas could be accomplished in90% of cases. But some of meningiomas produce atypical features such as irregular areas of nonenhancing mass, irregular ill-defined enhancing mass with large area of peritumoral edema ,low density area within the mass represeting necrosis and cystic change. It is well known that CT is the best and currently used modality in identifying the meningiomas. Polytomograpy as well as cerebral angiography, however, may often needed for detailed information about the nature and specific dianosis of the meningiomas.

기후변화 적응을 위한 풍수해 위험도 관리 방안 가뭄재해를 중심으로

서정호,지혜원,김연주,Seo, Jeong-Ho,Ji, Hye-Won,Kim, Yeon-Ju 한국수자원학회 2021 물과 미래(한국수자원학회지) Vol.54 No.2