주요 시설물 인접지역의 깊은 터파기굴착에서 변위 및 응력의 계측과 응용

원연호,강추원,양해승 조선대학교 동력자원연구소 1996 動力資源硏究所誌 Vol.18 No.2

The excavation works for deep foundation in urban areas have recently increased complaints of blasting vibration and settlement of ground level. Foundation must be excavated approximately up to 24∼28m depths from the surface. The roads and subway line pass through the excavation area. The Dae-chung station is also located at the nearest distance 5∼35m fron the working site. To protect subway station and adjacient some structures from blasting and settlement, the level of ground vibration, displacements and stress were monitored and analyzed. The results can be summarized as follows : 1. An empirical particle velocity equation was obtained by test blasts at Nassan Missi 860 Officetel construction site. V=K(D/√W)^-n, where the values for n and k are estimated to be 0.371 and 1.551 respectively. From this ground vibration equation, the max, charge weight per delay time against distance from blasting point is calculated. Detailed blasting method is also presented. 2. To measure the horizontal displacement in directions in directions perpendicular to the borehole axis, 6 inclinometers installed around working sites. The displacement at the beginning was comparatively high because the installation of struts was delayed, but after its installation the values showed a stable trend. Among them, the displacement by 3 inclinometers installed on a temporary parking area showed comparatively high values, for example, the displacement measrued at hole No. IC-1 recorded the max, 57.33mm for 7 months. So, all of these data was estimated below a safe standard value 103mm. 3. Seven strain gauge meter was installed to measure value of maximum stress was-465㎏f/㎠, -338.4㎏f/㎠, 302.3㎏f/㎠ respectively. In compare to the allowable stress level of steel, they are estimated to be safe.

위 전절제술 후 발생한 근위부 비장동맥 가성동맥류 1례

서경원,신연명 고신대학교 의과대학 2009 고신대학교 의과대학 학술지 Vol.24 No.2

Splenic pseudoaneurysm following upper abdominal surgery is uncommon but highly lethal complication. Surgical and angiographic interventions are used in treatment; however, optimal therapy remains unclear. We report herein the case of a 37-year-old woman in whom proximal splenic artery pseudoaneurysm ruptured into the small intestine via a fistula, following total gastrectomy. It causes massive bleeding, which was successfully managed by trans-catheter arterial embolization.

여과사 표면처리에 의한 부식물질 흡착

延動錫,李元鎬 충주대 산업과학기술연구소 2001 産業科學論文集 Vol.9 No.-

Suspended and dissolved substance were included in water. Suspended substances can be relatively easily removed by sand filter, whereas, complete removal of dissolved substances in water was not possible at present. It is due to repulsion between negative charge of dissolved substances and sand filter previously used. Potential application of sand filters coated with Al and Fe in removing humid substances was evaluated in this experiment to improve removal efficiency of the dissolved substances in the water. In the adsorption experiment, the removal efficiency of humic substances was higher in the coated sand filter than In the uncoated one. More specifically, the higher removal efficiency of the humic substances in the Al-coating sand filter was obtained over the pH range randomly determined(4.2, 5.1, 7.6, and 10.0). Especially, the removal efficiency of the humic substance at the pH 10 was relatively constantly maintained at a level of about 95% during the maximum 8 hours. After then, it was sharply decreased. In the leaching experiment, the concentration of leachate in both coated and uncoated sand filters was all the highest at pH 9.95. It was relatively higher over the pH range of 7 to 10 than other pH range. Finally, the removal efficiency of the humic substances obtained in the readsorption experiment was rapidly declined, compared to that obtained in the adsorption experiment. Experiment results acquired in this research may be used to develop a promising technology for the removal of bacteria, algae, and colorful colloids, and a variety of dissolved substances in water.

Eine Analyse der Verwirklichung des Rechts auf Bildung f?r behinderte Kinder und Jugendliche in Korea anhand des Vergleichs mit Deutschland

Won,Soh-Yeon 한독사회과학회 2009 한독사회과학논총 Vol.19 No.4

장애인의 사회통합을 달성하기 위해 그들의 교육권 보장은 가장 기본적인 전제조건이라고 할 수 있다. 우선 교육은 인간으로서의 잠재된 능력을 계발하여 인간다운 생활을 영위하는데 포기할 수 없는 기본적인 요소다. 독일과 한국 헌법의 핵심인 인간의 존엄성과 개인의 자유와 평등의 실현 또한 교육과정을 통해서만 이룩할 수 있다. 이에 한국은 헌법 31조에서 모든 국민은 능력에 따라 균등한 교육을 받을 권리를 갖는다고 직접적으로 규정하고 있다. 하지만 장애인은 비장애인에 비해 정신적 또는 육체적인 한계를 지니고 있기 때문에, 비 장애인을 대상으로 하는 일반적인 교육제도하에서는 그들의 권리가 완전하게 실현되기 어렵다. 따라서 장애인의 교육권 보장을 위해서 법과 제도를 통해 장애인과 비장애인 사이의 불평등을 제거해야 하는 국가의 책임이 요구된다.

청신경종의 크기에 따른 어지러움의 양상 및 전정기능 검사의 특징

정원호,홍성화,조양선,김성민,장병찬,최재연,이승진 대한이비인후과학회 2000 대한이비인후과학회지 두경부외과학 Vol.43 No.1

홍삼 내 ginsenosides의 경구용 제제 개발을 위한 전략수립

연원기,조정원 충남대학교 약학대학 의약품개발연구소 2013 藥學論文集 Vol.28 No.-

Ginsenosides saponins are phytochemically extracted from red ginseng, and have been regarded as the principal components manifesting the pharmacologic activities. Saponins are very soluble in water but poorly absorbed when administrated orally. Moreover, they have some disadvantages including the decomposition in acid medium. Therefore various designs and techniques have been studied for development of optimal formulation and modification of release profile. This review focused on pH-response polymer and bioadhesive polymer considering the low stability in acid medium and the low permeability in mucosal membrane of saponins. The application of these polymers are considered as potential strategy for improvement of bioavailability in oral delivery of saponins.

SMAS 거상술 및 Malar Fat Pad의 수지박리를 이용한 안면거상술

강연웅,유원민,김지명,박병윤 大韓成形外科學會 2001 Archives of Plastic Surgery Vol.28 No.5

발열로 인해 발현된 부루가다 증후군 1례

박혜연,김종훈,박경일,황철웅,김태년,남궁준,도준형,이원로,이성윤 白中央醫療院 2005 仁濟醫學 Vol.26 No.1

Brugada syndrome is characterized by right bundle branch block morphology and ST segment elevation in the right precordial leads and a propensity to develop ventricular arrhythmias. Mutations in a cardiac sodium channel gene have been linked to this syndrome, and the ionic mechanisms responsible for the electrocardiographic phenotype are temperature-dependent. This case report describes a patient in whom a typical Brugada ECG pattern developed during fever and returned normal ECG after fever was subsided.

국내에서 발생하고 있는 사람 브루셀라증의 임상적 특성

김연숙,최영실,오원섭,권기태,이혁,이선희,손준성,김신우,장현하,정숙인,고관수,박미연,백경란,송재훈 대한감염학회 2006 감염과 화학요법 Vol.38 No.6

배경 : 2002년 내국인에서의 첫 사람 브루셀라증의 증례 보고 이후 국내에서 사람 브루셀라증이 빠른 증가를 보이고 있다. 이에 연구자들은 국내에서 발생하는 브루셀라증의 임상적 특성을 연구하고자 하였다. 방법 : 2003년부터 2006년 7월까지 7개 대학병원에 내원한 환자들을 대상으로 WHO의 진단기준에 의하여 확진된 브루셀라증 환자들의 의무기록을 후향적으로 조사분석 하였다. 배양된 균은 삼성서울병원에 의뢰하여 16S rRNA 유전자 분석방법을 이용하여 종을 확인하였고, 표준시험관응집검사는 국립보건원에 의뢰하여 시행하였다. 결과 : 34예의 환자들이 브루셀라증으로 확진되었고, 31명이 남자였다. 혈액에서 B. abortus가 증명된 경우가 8예, 표준시험관 응집검사상 의미 있는 항체가 상승을 보인경우가 26예이었다. 환자들은 대부분 축산업관련 종사자였고, 추후 브루셀라증으로 확진된 소와의 직접 접촉을 통해 감염된 것으로 여겨진다. 국내 사람 브루셀라증의 가장 흔한 증상은 발열이었고, 위장관계 합병증이 가장 흔히 동반되었다. 치료로는 doxycycline/rifampicin이 24예의 환자에서 doxycycline/aminoglycoside (streptomycin 혹은 gentamicin)이 10예의 환자에서 6주 이상의 기간 동안 투여되었다. 치료에 반응을 보이지 않는 환자는 없었고, 재발이 1예 있었다. 결론 : 국내에서 발생하는 사람 브루셀라증의 원인균으로 현재까지 분리 동정된 것은 B. abortus이며, 소 브루셀라증의 증가로 인해 인체감염사례가 함께 증가하는 것으로 사료된다. 위험 직업군 종사자들에서 감염된 소와의 직접 접촉을 통해 주로 발생하고 있는 브루셀라증의 임상종상은 국외에서 발생하는 경우와 유사한 양상을 보이고 있으며 치료에 대한 반응은 비교적 좋은 편이긴 하나, 추후 보다 많은 환자들을 대상으로 한 연구가 필요하리라 사료된다. 사람 브루셀라증의 조절을 위해서는 소 브루셀라증의 조절이 필수적이며, 브루셀라증의 조절에 성공한 선진국의 사례를 적극적으로 도입해야 할 것으로 생각된다. Background : Since the first Korean case of human brucellosis was reported in 2002, the incidence of human brucellosis has been rapidly increasing. We performed this study to evaluate the clinical characteristics of human brucellosis occurring in South Korea. Materials and Methods : Demographic features, clinical manifestations, and therapeutic outcomes of cases confirmed as brucellosis according to WHO diagnostic criteria were evaluated. Species of Brucella isolates were identified with 16S rRNA gene sequencing method. Serologic diagnosis was performed with standard tube agglutination test (STA). Results : A total of 34 cases were enrolled from 2003 to 2006 in six hospitals. Eight cases were confirmed with the isolation of Brucella from blood and 26 cases were confirmed with titer of antibodies ≥1:160 by STA. Male (31) was predominant and most of the patients were cattle farmers. The most common transmission route was direct contact with infected or their cattle byproducts. Fever was the most prominent symptom and fatigue followed. Gastrointestinal and musculoskeletal systems were commonly complicated. Patients were treated with doxycycline and rifampin or aminoglycosides for more than 6 weeks. All patients responded well to the therapeutic regimens, but one patient relapsed 10 months after treatment. Conclusion : Brucellosis occurring in Korea has been caused by B. abortus, whose preferred natural host animals are cattle. Korean patients were infected through direct contact with bovine brucellosis. Clinical manifestations of brucellosis were similar to those occurring worldwide. Therapeutic outcomes were good among patients with brucellosis in Korea. In order to prevent human brucellosis, measures to eradicate bovine brucellosis should precede.

이동형 구내 방사선촬영기로 촬영한 치근단 방사선사진의 흡수선량 및 유효선량 평가

조정연,한원정,김은경 대한구강악안면방사선학회 2007 Imaging Science in Dentistry Vol.37 No.3

Purpose : The purpose of this study was to measure the absorbed dose and to calculate the effective dose for periapical radiography done by portable intraoral x-ray machines. Materials and Methods : 14 full mouth, upper posterior and lower posterior periapical radiographs were taken by wall-type 1 and portable type 3 intraoral x-ray machines. Thermoluminescent dosemeters were placed at 23 sites at the layers of the tissue-equivalent ART woman phantom for dosimetry. Average tissue absorbed dose and radiation weighted dose were calculated for each major anatomical site. Effective dose was calculated using 2005 ICRP tissue weighted factors. Results : On 14 full mouth periapical radiographs, the effective dose for wall-type x-ray machine was 30 Sv; for portable x-ray machines were 30 Sv, 22 Sv, 36 Sv. On upper posterior radiograph, the effective dose for wall-type x-ray machine was 4 Sv; for portable x-ray machines doses were 4 Sv, 3 Sv, 5 Sv. On lower posterior radiograph, the effective dose for wall type x-ray machine was 5 Sv; for portable x-ray machines doses were 4 Sv, 4 Sv, 5 Sv. Conclusion : Effective doses for periapical radiographs performed by portable intraoral x-ray machines were similar to doses for periapical radiographs taken by wall type intraoral x-ray machines.