Overbite depth와 하악과두 위치에 관한 연구

조원표 건국대학교 의과학연구소 1995 건국의과학학술지 Vol.5 No.-

This study was designed to evaluate the relationship of mandibular condylar position to overbite depth and compare the findings from transcranial radiographs and those from indivisualized corrected tomographs in determination of condylar position. The subjects consisted of 20 control subjects(male 8, female 12), and 23 deep-bite patients(male 17, female 6). The mean age was 23.6 years for the control group, and 23.2 years for deep-bite group. Transcranial radiographys and individualized corrected tomographys in centric occlusion were taken from right and left temporomandibular joints of each subject. The results were as follows. In the 20 normal subjects showing no symptoms of TM disorder, the incidence of condylar retrusion was 27.5%, middle condylar position 60.0%, and anterior displacement 12.5%. Only 45.2% of the findings from transcranial radiographs coincided with those from individualized corrected tomographs in determining condylar position. There was significant correlation between the bite depth and observed condylar position.

폭풍발생에 따른 해안단면변화에 관한 수치해석

표순보,조원철,이보형,이홍식 중앙대학교 기술과학연구소 1998 기술과학연구소 논문집 Vol.28 No.-

폭풍발생에 다른 해안단면의 변화를 예측하는 것은 해안선 변화에 대한 종합적인 대책을 수립하는데 있어 중요한 역할을 한다. 해안단면변화는 주로 해빈의 유사이송에 에 의해 발생되나, 유사이송은 유사의 입경, 수면상승높이, 쇄파고 등 많은 요소들에 의해 복합적으로 작용하기 때문에 현재에도 정확한 예측이 어려운 실정이다. 본 논문에서는 해안단면에서의 평형에너지소산개념을 수치모델에 도입하여 폭풍발생에 따른 안층방향의 해안단면변화와 해빈침식에 대하여 분석하여 보았다. 안층방향의 해안단면변화와 해빈침식은 평형단면 파라미터, 유사이송률 파라미터, 수면상승높이에 의해 크게 영향을 받음을 알 수 있다. A numerical model is applied for predicting variation of the beach profile and beach erosion during storms. Equation of sediment continuity and dynamic equation, governing on-offshore sediment transport due to a disequilibrium of wave energy dissipation, are used in the model. During a storm, the beach profile evolves to a form where the depth at the surf zone is related to the distance seaward of the waterline. In general, variation of the beach profile is found to be sensitive to the equilibrium profile parameter, the sediment transport rate parameter and the elevated water level. Also, the model response characteristics in the simulation of beach erosion show a lag between the maximum storm surge elevation and the maximum erosion.

구개골내 정중치에서 발생한 함치성낭종 1례

조원표,김재영,서경식 건국대학교 의과학연구소 1995 건국의과학학술지 Vol.5 No.-

Dentigerous cyst may occur any place around jaw. Dentigerous cyst can develop from unerupted tooth, and cyst from supernumerary tooth is rare. Among dentigerous cyets, palatal dentigrous cyst from a mesiodens is a very rare case. So we report a large(2.5×2.5㎝) dentigerous cyst arising from a mesiodens which was found at left premaxillary area eroding palate, premaxilla, nasal floor and roots of left upper central and lateral incisors. En bloc enucleation of the cyst was performed and the large bony defect was filled with antibiotic and thrombin-impregnated Gelfoam. The incision site was closed with meticulous water-tight interrupted 5-0 nylon sutures. We report with follow up CT scans after 4 months. So far as we have followed up the patient, filling the bony defect with thrombin and ??, a absorbable gelatin sponge revealed a good tissue replacement material.

악관절 장애환자의 교합 안정장치 사용 전후의 적외선 체열영상에 관한 연구

조원표 건국대학교 의과학연구소 1998 건국의과학학술지 Vol.8 No.-

Thermography is a sensitive and reliable method for diagnosis of temporomandibular joint disorder. Digital infrared thermographic imaging system is noninvasive, easy to reading, objective and physiologic instrument by measuring and imaging infrared energy emitted from skin surface. Computerzed digital infrared thermographic imaging is comfortable method for diagnosis of disease and evaluation for treatment result. The author presents the result of digital infrared thermographic images of 36 patients of temporomandibular disorder. The author has done digital infrared thermographic imaging preconservative and postconservative treatment. In digital infrared thermographic imaging before use of occlusal stabilization splint, the diagnostic sensitivity is about 83.3%. In digital infrared thermographic imaging after use of occlusal stabilization splint, the result is about 73.3%.

버팀보로 지지된 흙막이벽의 거동에 관한 연구

홍원표,여규권,윤중만,조용상 중앙대학교 기술과학연구소 1997 기술과학연구소 논문집 Vol.27 No.-

버팀보 축력으로부터 산정된 측방토압은 지표면에서 굴착깊이의 17%에 해당되는 깊이까지 선형적으로 증가하다가 그 깊이 아래로부터는 일정토압분포를 보이는 사다리꼴모양의 분포를 보였다. 이 일정토압 분포부분의 토압 크기는 평균적으로 최종굴착깊이에서의 Rankine 주동토압의 58%에 해당하거나 연직상재압의 17%에 해당하였다. 또한 흙막이벽의 수평변위와 굴착깊이와의 관계로부터 흙막이구조물의 안정성을 판단할 수 있는 시공관리기준을 설정하였다. 흙막이벽의 수평변위량이 굴착깊이의 0.20%보다 작으면 흙막이벽과 굴착배면지반은 안정된 상태에 있다. 그러나 벽체의 수평변위가 굴착깊이의 0.20%보다 크게 발생하면 굴착공사의 안정성을 주의깊게 관찰해야만 하며, 필요하다면 흙막이 구조물을 보강해야만 한다. The lateral earth pressures on braced earth retaining walls, which are estimated form the measured strut force, shows a trapezoidal distribution that the earth pressure increases linearly with depth from the ground surface to 17% of the final excavation depth, and then keeps constant value. The maximum lateral earth pressure was same to 58% of Rankine's active earth pressure or 17% of the vertical overburden pressure at the final excavation depth. Also, empirical criterion is established for construction management to monitor and ensure the stability of deep excavation from the relationship between horizontal displacement of wall and excavated depth. If the horizontal displacement of wall measured from inclinometer shows less than 0.20 percent of the excavated depth, the retention wall and surrounding ground exist under stable state. When the horizontal displacement is developed more than 0.20 percent of the excavated depth, excavation works should be carefully observed and reinforced the earth retention wall, if necessary.

Carbon Black이 시멘트 Paste 및 Mortar의 물리적 특성에 미치는 영향

홍원표,황의환,조헌영 忠南大學校 産業技術硏究所 1986 산업기술연구논문집 Vol.1 No.2

This study was performed to determine the most desirable carbon black and it's content in ordinary porland cement for the increase of physical properties of the cement and mortar. The various contents of carbon black were used for this study such as 0.2wt%, 0.5wt%, 1.0wt% and 3.0wt%. The different particle size and structure of carbon black were used. The physical properties of the cement paste and mortar were tested by KS methods. The experimental results are as follow; 1) The contents of 0.5-1.0wt% carbon blacks in cement increased most apparently the setting time of cement paste, flow value, compressive and flexural strengths of mortar, whereas decreased the water absorption ratio of mortar by about 10%. 2) SNP and D company's carbon black which have smaller numbers of I₂adsorption and DBP absorption and heavier pour density than those of others showed to be the most effective carbon blacks. 3) The soundness of cements remained unchanged regardless to the different kinds and contents of carbon blacks.

Asphalt와 Carbon Black을 처리한 TYPE Ⅰ,Ⅱ,Ⅴ 시멘트의 몰탈 및 콘크리트 특성

황의환,조헌영,홍원표 忠南大學校 産業技術硏究所 1987 산업기술연구논문집 Vol.2 No.2

ACTPC(Asphalt and Carbonblack Treated Portland Cement) Ⅰ, Ⅱ, Ⅴ were made with TYPEⅠ, TYPEⅡ and TYPEⅤ cements by treating 0.5% straight asphalt and 0.4% carbon black, and their characteristics of paste, mortar and concrete were compared with those of TYPEⅠ, Ⅱ, Ⅴ cements. The results are as fallows. 1. The cumulative hydration hear of ACTPCⅠcement was appeared to be the middle stage of TYPEⅠand TYPEⅡ cements. 2. During the hydration reaction, the dorment period of ACTPCⅠ cement is longer than that of TYPEⅠ cement, but the hydration heat of ACTPCⅠ cement measured after 16hours from water mixing increased more than that of TYPEⅠ cement. 3. ACTPCⅠ cement mortar showed nearly same resistance against H₂SO₄solution as that of TYPEⅤ(sulfur resisting cement). 4. The concrete flexural strength of ACTPCⅠ cement is increased to 60∼65% than that of TYPEⅠ cement and 20∼23% than that of TYPEⅡ cement. 5. The concrete tensile strength of ACTPCⅠ, Ⅱ and Ⅴ cements are increased to 5∼7% than that of TYPE Ⅰ, Ⅱ and Ⅴ cements.

Myelodysplastic Syndrome에서 Acute Myelogenous Leukemia로 이행한 1례

오금탁,김원식,박상호,홍순표,조건국 조선의대 1985 The Medical Journal of Chosun University Vol.10 No.1

Lifetime risk and age of onset distributions of psychiatric disorders: analysis of national sample survey in South Korea.

Cho, Maeng Je,Chang, Sung Man,Hahm, Bong-Jin,Chung, In-Won,Bae, Ahn,Lee, Young Moon,Ahn, Joon Ho,Won, Seunghee,Son, Jungwoo,Hong, Jin Pyo,Bae, Jae Nam,Lee, Dong-Woo,Cho, Seong-Jin,Park, Jong-Ik,Lee, J Springer International 2012 Social psychiatry and psychiatric epidemiology Vol.47 No.5

<P>The present study represents the first attempt at examining variation across Korean cohorts with respect to lifetime risk of DSM-IV psychiatric disorders.</P>

Femoral endovenectomy with iliac stenting for chronic iliofemoral venous occlusion

Won Pyo CHO,Seung-Kee MIN 대한외과학회 2017 대한외과학회 학술대회 초록집 Vol.2017 No.11