• 대한핵의학회지
• /
• 제26권1호
• /
• pp.33-39
• /
• 1992

Spontaneous pain and painful overreaction to external stimuli resulting from lesion confined central nervous system (CNS) were named as thalamic syndrome. Thalamic lesion and decreased regional cortical perfusion thought to the pathogenesis of thalamic syndrome due to decreased function of thalamocortical tract. We performed $^{99m}Tc-HMPAO$ regional cerebral perfusion in 10 patients with clinical diagnosis of thalamic syndrome due to thalamic lesion or near the thalamic lesion at Yonsei University Hospital, from January 1989 to August 1991. In contrast to five patients with lesions near the thalamus who did not show secondarily decreased perfusion at cerebral cortex, four among the five patients with thalamic lesions revealed decreased cortical perfusion in the ipsilateral cerebral cortex on brain SPECT. These phenomena may suggest the loss of afferent activating stimuli from the thalamus led to decreased neuronal activity and the followitng hypoperfusion of cerebral cortex, and might be one of the indirect signs for suggesting presence of the thalamocortical tract. A causal relationship between cortical hypoperfusion and neuropsychological deficit is strongly suggested.

• Journal of Ginseng Research
• /
• 제28권4호
• /
• pp.215-218
• /
• 2004

종자저장실온도($5{\pm}1^{\circ}C$, 상대습도 $30{\%})$에서 장기저장된 인삼종자의 발아율과 종자의 활력을 조사하였던 바 그 결과 를 요약하면 다음과 같다. 활력검사에 사용한 Terazolum 용액처리는 $0.1{\%}$에서는 150분, $0.5{\%}$에서는 90분 그리고 $1{\%}$에서는 60분이 적당하였으며, 인삼종자의 발아는 $10^{\circ}C$에서 가장 양호하게 나타났으며, $20^{\circ}C$에서는 발아가 불량하였다. 건전종자의 비율은 1년 저장종자에서는 96.6{\%}$, 7년 저장종자에서는 $89.2{\%}$, 9년 저장종자의 경우에는 $63.4{\%}$으로 저장기간이 길수록 건전종자의 비율이 낮아졌다. 한편 종자의 발아율은 1년 저장종자에서는 $84.0{\%}$, 6년 저장종자에서는 $80.5{\%}$, 7년 저장종자에서는 $73.5{\%}$, 9년 저장종자에서는 $2.5{\%}$로 나타나, 인삼종자는 $6\~7$년 동안 저장할 수 있는 것으로 확인되었다.

• Journal of Ginseng Research
• /
• 제25권1호
• /
• pp.41-44
• /
• 2001

우수품종 및 계통으로 산지실증시험에 공시된 천풍, 연풍, KG103, KG104, KG105 및 황숙종의 개화 및 결실특성을 조사하였던 바, 그 결과는 다음과 같다. 품종 및 계통간의 개화기는 약간의 차이를 나타냈으며, 연풍과 KG103이 다른 품종이나 계통에 비해 약간 빨랐다. 조사된 품종과 계통의 임실율은 60% 수준으로, KG104가 비교적 높았고, KG103이 낮은 편이었다. 종자결실형별로 보면 천풍과 KG10S은 1립형, 연풍, KG104 및 황숙종은 2립형의 임실율이 높았으며, KG103은 1립형과 2립형이 비슷한 비율을 보였다. 칸당 채종 줄기수는 연풍이, 줄기당 채종 종자수는 KG104가 가장 많았다. 칸당 채종립수는 연풍이 가장 많았으며, KG105가 비교적 낮은 경향을 보였다. KG103의 종자는 비교적 굵은 대립종이 많았으며, 천풍과 황숙종은 소립종이 약간 많았다.

• 소성∙가공
• /
• 제27권5호
• /
• pp.281-288
• /
• 2018

This study deals with the microstructure and tensile properties of 600 and 700 MPa-grade high-strength seismic reinforced steel bars. High-strength seismic resistant reinforced steel bars (SD 600S and SD 700S) were fabricated by TempCore process, especially the SD 700S specimen was more rapid cooled than the SD 600S specimen during the TempCore process. Although two specimens had microstructure of tempered martensite in the surface region, the SD 600S specimen had ferrite-degenerated pearlite in the center region, whereas the SD 700S specimen had bainite-ferrite-degenerated pearlite in the center region. Therefore, their hardness was highest in the surface region and revealed a tendency to decrease from the surface region to the center region because tempered martensite has higher hardness than ferrite-degenerated pearlite or bainite. The SD 700S specimen revealed higher hardness in the center region than SD 600S specimen because it contained a larger amount of bainite as well as ferrite-degenerated pearlite. On the other hand, tensile test results indicated the SD 600S and SD 700S specimens revealed continuous yielding behavior because of formation of degenerated pearlite or bainite in the center region. The SD 600S specimen had a little higher tensile-to-yield ratio because the presence of ferrite and degenerated pearlite in the center region and the lower fraction of tempered martensite enhance work hardening.

• 대한본초학회지
• /
• 제30권4호
• /
• pp.45-49
• /
• 2015

Objectives : Through this study, it would be confirmed that specific expression for efficacy of medicinal material has multiple meanings. And through the methodology to determine the multi meaning, it could be contributed to lighten ambiguous expressions for efficacy of medicinal material.Methods : The premise is that the efficacy and treatment target data are related to each other. Word cloud has been used analyzing the efficacy and treatment target data for medicinal materials. Then classic and modern documents were analyzed by the search.Results : Even though searching all related references as well as comparing the efficacy and treatment target data were done, some medicinal materials having 'Salchung[殺蟲]' as an efficacy are not expected to treat the disease associated with the parasite. Through the analysis of classic and modern documents, it was found that 'Salchung[殺蟲]' is not used only as a means of anthelmintic efficacy. But through the above analysis method some medicinal materials having 'Guchung[驅蟲]' as an efficacy are expected to treat the disease associated with the parasite, and 'Guchung[驅蟲]' seems to be almost used as a means of anthelmintic efficacy.Conclusions : If a certain expression for efficacy of medicinal material is used as a single meaning obviously, ambiguous expressions need to be clear. And if a certain expression for efficacy of medicinal material seems to have multiple meanings, the additional informations are to be supplemented for exact wording.

• 대한토목학회논문집
• /
• 제10권2호
• /
• pp.103-112
• /
• 1990

본 연구는 내진설계시 많은 불확실성을 내포하는 지반의 거동특성을 규명하고, 적용대상지반의 확충 및 경제성 제고를 위하여 토사지반의 동적지반특성 평가 및 지반-구조물 거동 특성을 고찰하였다. 예제해석은 토사지반에 원전 containment 구조물이 설치된 경우를 가상하여 지진하중에 대한 지반-구조물 시스템의 거동을 반무한체해석과 유한요소해석으로 분석하였다. 이는 토사지반에 원전이 건설될 경우에 고려해야 할 안정성 및 경제성 분석의 일환으로 수행되었으며, 토사지반의 큰 비선형거동을 정확하게 해석에 반영하기 위한 해석 software와 지반입력 data의 합리적인 평가방안 등을 예제해석을 통하여 분석하였다. 예제해석결과를 종합해 볼 때 토사지반의 동적거동의 정확한 분석을 위하여 비선형 유한요소해석은 Seed & Idriss 모델이, 선형 유한요소해석은 지진하중에 대한 1차원 지반거동시 변형율에서의 동적지반특성을 이용한 방법이, 반무한체해석은 정적하중시 변형율에서의 동적지반특성을 이용한 방법이 가장 합리적으로 동적지반특성을 평가하는 것으로 추천할 수 있다.

• 대한토목학회논문집
• /
• 제10권2호
• /
• pp.91-102
• /
• 1990

본 연구는 다양한 지반조건에 따른 동적거동해석의 안정성 및 경제성을 분석하기 위하여 토사지반을 포함하는 시험부지를 선택하여 토사지반에서는 미소변형율의 crosshole test 및 downhole test와 대변형율의 반복삼축시험, 암반에서는 미소변형율에서 현장시험인 crosshole test, downhole test와 실내시험인 sonic test를 실시해 변형율에 따른 지반의 동적전단계수, 감쇠비와 포아슨비 등을 측정하였다. 시험으로 구한 동적지반특성과 기초특성과의 상관관계를 회귀분석을 통하여 분석하였고, 지반의 설계대표치는 시험결과를 토대로 지반별 분포특성 및 영향요인을 고려하여 토사지반에서는 비선형 응력-변형모델로, 암반에서는 미소변형율에서의 동적지반특성을 산정하였다. 상기의 지반구성방정식과 대표치 산정과정은 실제 시험결과 분석, 지반입력 data 산정에 활용 가능하도록 체계화하였다.

• 대한핵의학회지
• /
• 제10권1호
• /
• pp.47-54
• /
• 1976

A clinical study was made on 263 patients of hypothyroidism among the 5,970 patients of various thyroid diseases diagnosed and treated at the Radioisotope Clinic and Laboratory, Seoul National University Hospital from May, 1960 to Aug., 1975. The results obtained with this study are as follows: 1) The etiological classification of hypothyroidism revealed 244 cases (93%) of primary hypothyroidism and 19 cases (7%) of secondary hypothyroidism. 2) The most frequent cause of the thyroprivic primary hypothyroidism was post radioiodine therapy with 109 cases (41.4%). 3) There were 37 cases (14%) of male and 226 cases (86%) of female, showing a ratio of 1:6. 4) The majority of patients were between the ages of 30 and 60 with the peak incidence (87 cases, 33%) in their fourth decades of lives. 5) The major symtoms and signs were weakness (97%), edema of face and extremities (92%); Decreased Achilles tendon reflex (87%), cold intolerance (82%), gain in weight (76%), constipation (58%) and cold skin (51%). 6) The cumulative incidence of hypothyroidism in patient treated with $^{131}I(3{\sim}8mci)$ was 7.2% at first year, 33.3% at tenth year and the 50% at fourteenth year and the annual increment was 2.9%. 7) The incidence of hypothyroidism related to thenumbers of $^{131}I$ the rapy was not linear. 8) The diagnostic compatibilities of the various tests to hypothyroidism were TSH (100%), $T_4$ (93.8%), 24-hour-RNIU (91.5%), ATR (86.7%), $T_3RU$ (66.1%) and BMR (64.9%).

• 한방비만학회지
• /
• 제7권1호
• /
• pp.71-85
• /
• 2007

Objectives : This study was performed to identify the efficacy and safety of ephedra and green tea mesotherapy on localized fat. Methods : Twenty-five healthy $20{\sim}35$ year overweight women (body mass $index{\geq}23kg/m^2$) were recruited and randomly assigned to two groups : experimental(mahuang and green tea) group (n=13), placebo(Normal saline) group (n=12). Total 8 times of herbarl mesotherapy treatment were performed once per week, 4 times were performed on right thigh (1st period), after wash-out for 1 week, the other 4 times were performed on left thigh (2nd period) without any modification of diet or exercise. Body composition, thigh circumferences were measured at each period before and after the intervention. Subcutaneous fat was measured by CT scan at before and after the 1st period of intervention and free fatty acid(FFA) was measured immediately before 1st intervention, 1 hour later, 24 hours later, and 7 days later. Satisfaction score and adverse events were evaluated. Results : In the subcutaneous fat, there were no significances, but in the circumferences. Experimental group had significant change when compared with placebo group (p<0.05). In FFA, experimental group has significant elevation at after 1 hour (p<0.05) evaluation. There were no serious adverse events in both groups. Conclusions : Experimental group had some significant findings in circumference, FFA, and had no serious adverse events comparing with placebo group, and no serious adverse events have been reported in both group. Mesotherapy with herb have a possibility of treating localized fat

• 대한장애인치과학회지
• /
• 제13권1호
• /
• pp.43-46
• /
• 2017

본 증례는 함입 주소로 내원한 9세 4개월 뇌성마비 남환을 미다졸람 근주를 이용한 의식하 진정법으로 해당치아의 수술 적 재위치 및 근관치료를 시행하였다. 5년이 지난 현재 유착 소견 및 부분적인 치근흡수가 보이나 양호한 상태로 유지되고 있다. 뇌성마비 환자의 경우 치아 및 주위조직에 취약하며, 치료 시 적절한 행동조절 및 치료 방법을 선택하는 임상의의 노력이 필요하다.