• 한국임상수의학회지
• /
• 제11권2호
• /
• pp.529-537
• /
• 1994

Sector scanner which has a conical end is used to image through the intercostal space because heart is protected by the ribs. Cardiac data published all around the world were also obtained by sector scanner. Although scanners being used in every small animal practice and animal hospital at college in Korea include convex ape and linear type, linear type is not appropriate f3r cardiac scan because of a wide contact surface. The purpose of this study is to establish ultrasonographic images of normal cardiac structures by measuring shape, size of reflectable cardiac structure according to restraint position in scanning normal heart of the puppies with 6.5 MHz convex scanner(SonoAce 4500, Medison, Korea) used in our veterinary teaching hospital, Seoul national university. Seventeen male and female puppies considered having healthy hear by X-ray and clinical examination are used feom April to July 1994. Scanning point selection of probe head and the distinction of imaged cardiac structures were accomplished by necropsy and cardiac scanning performed through thoracotomy under general anesthesia. At 10 o'clock position of transducer(at an angle of 30$^{\circ}$ between imaginary line from elbow joint to 3rd sternum and probe head, 60$^{\circ}$ from body surface, 4th intercostal space of right thorax) with the marker of scanner toward the head of dogs right atrium, left atrium and left ventricle were observed in 2, 3, 4, 5 intercostal space(2cm from the sternum) of experimental dog positioned ventrodorsally under general anesthesia. Under these conditions, the numerical values of imaged diastolic hear are as follows : the distance from skin to apex(mean$\pm$S.D) 47.53$\pm$6.94mm, thickness of left ventricular wall 6.00$\pm$1.60mm, length of left ventricle 16.27$\pm$5.31mm, width of left ventricle 15,33$\pm$4.25mm, length of left atrium 12.33$\pm$3.82mm, width of left atrium 11. 33$\pm$3.94mm, length of right atrium 1.00$\pm$2.41mm, width of right atrium 11.21$\pm$2.76mm and the area of left ventricle 270.92$\pm$109.81mm$^2$, area of left atrium 98.00$\pm$41.08mm$^2$, area of right atrium 62.75$\pm$21.04mm$^2$.

• 한국자동차공학회논문집
• /
• 제14권5호
• /
• pp.155-163
• /
• 2006

Car seat is one the most important element to make comfortable drivability. It can absorb the impact or vibration during driving state. In addition to those factors, it is needed to have enough strength for passenger safety. From energy efficiency and environmental point of view lighter passenger car seat frame becomes hot issue in the auto industry. In this paper, weight optimization methodology is investigated for commercial car seat frame using CAE. Optimized designs for seat frame are developed using commercially available finite element code(ANSYS) and design of experiment method. At first, car seat frame is modelled using 3-D computer aided design tool(CATIA) and simplified for finite element modelling. Finite element analysis is carried out for the case of FMVSS 202 Head Restraint test to check the strength of the original seat frame. Two base brackets are selected as optimized elements that are the heaviest parts in the seat frame. After finite element analysis for the brackets with similar load condition to the previous test optimization technique is applied for 10% to 50% weight reduction. Design of experiment is utilized to obtain optimization design for the bracket based on the modified 50% weight reduction model in which outer shape of the bracket is conserved. Weight optimization models result in the decrease of the strength in spite of weight reduction. The more design points should be considered to get better optimized model. The more advanced optimization technique may be utilized for more parts of the seat frame to increase whole seat frame characteristics in the future.

• Korean Journal of Acupuncture
• /
• 제17권1호
• /
• pp.157-171
• /
• 2000

Front Points are told to be deeply related with viscera and bowels in oriental medicine. Since the Front Points are treated as response zone, it can be used for the diagnosis and treatment of disease in viscera and bowels. The location of Front Points are very similar to the several response zones in western medicine. Diagnostic aspect of Front Points to several response zones were discussed in here based on many thesis and reported laboratorial experiments. Front Points are located in the same latitude of viscera and bowels. So, diagnosis result in Front Points represent condition of each organs. Palpitation of the Front Points can make diagnosis of body surface and the organ beneath the body surface. Such use of Front Points for diagnosis can used as the treatment points also. Only three Front Points (LU-1, LI-14, GB-24) in lung, liver and gall bladder meridian are located on its meridian. The Front Points of Stomach (CV-12) cross its meridian or closely located to it. Unlike to those four Front Points that are matched to its meridian, other eight Front Points do not located or cross its meridian at all. It seems that the location of Front Points are decided by the location of organs and the conditions at a certain organ do not delivered by the meridians but delivered by main collaterals, tertiary collaterals and superficial collaterals instead. Among visceral response zones, Five Front Points (CV-3, CV-4, CV-12, LI-14, GB-25) are exactly matched to Head's response zone and other Front Points are closely matched to the Head's response zone. There are five Front Points (CV-12, CV-14, CV-17, LI-14, GB-24) that are matched with the location of pressing palpitation point and other Front Points are closely located to the pressing palpitation point. So far, it was clear that the Front Points do have important role as response points. Symptoms expressed to the Front Points were delivered conditions or symptoms occur in corresponding organ and the anatomical location of Front Points were also found near the corresponding organ. Diagnostic and therapeutic application of Front Points for Organ theory and in the Interpromotion-restraint of the five elements in oriental medicine can be made in future to increase its potential.

• 대한정형외과학회지
• /
• 제55권4호
• /
• pp.281-293
• /
• 2020

전방십자인대 재건술은 슬관절 수술 중에서 흔하게 시행되는 수술 중 한가지이나 해부학 및 생역학에 대한 이해가 증가하여 수술 기법의 다양한 변화가 있었음에도 수술 실패는 7%-16% 정도로 보고되고 있어 회전 불안정성에 대한 관심은 지속적으로 강조되고 있다. 최근 들어 전외측인대가 회전 불안정성에 대한 2차적인 지지 구조물로 많은 관심을 받고 연구되고 있다. 하지만 아직까지 전외측인대의 해부학적 형태, 생역학 및 임상 결과에 있어서 논란이 있다. 전외측인대는 대퇴골 외상과 부위에서 경골 근위부의 Gerdy's 결절과 비골 골두 사이에서 슬관절 전외측으로 주행하는 구조물로 알려져 있으며 생역학적 연구에서 경골의 내회전에 따라 전외측인대의 긴장도가 증가하는 슬관절 회전안정성에 기여를 하는 구조물로 알려져 있다. 전외측인대 손상의 진단은 신체검사, 방사선적 검사, 자기공명영상 등의 다양한 검사를 이용하여 종합적으로 판단하며 그중 주로 pivot-shift 검사와 자기공명영상의 결과를 종합하여 진단하게 된다. 최근에는 장경인대의 Kaplan 섬유 등과 같이 전외측인대 복합체로 판단하기도 하며 그 구조물들의 손상여부를 각각 고려하기도 한다. 치료에 있어서 다양한 수술법이 소개되어 사용되고 있고, 연구마다 다른 수술의 적응증을 제시하고 있는 실정으로 최근의 임상적 연구에서 회전 불안정성에 있어 긍정적인 효과를 보고하였지만 앞으로 더 많은 연구가 진행되어야 전외측인대를 강화하는 외측 강화 술식의 유용성에 대한 정확한 평가가 될 수 있을 것으로 판단된다.

• 대한소아치과학회지
• /
• 제30권3호
• /
• pp.341-347
• /
• 2003

Smith-Magenis syndrome(이하 SMS)은 제 17번 상염색체의 부분적 결손으로 발생하는 다발성 선천적 기형 및 정신지체를 특징으로 하는 증후군으로 1 : 25,000의 빈도로 발생하는 것으로 알려져 있다. 이 증후군은 작은 키와 단두증(brachycephaly)을 동반한 편평한 중안면, 처진 입, 종종 두드러지게 붉은 뺨, 성인에서 돌출된 턱 등의 특징적인 얼굴 생김새, 만성이염, 청각 손상, 사시와 근시를 포함한 눈의 이상, 목 쉰 소리, 짧은 손가락과 발가락, 심장 질환, 비뇨기 질환, 척추 만곡, 비정상적 걸음걸이, 통각에 둔감함 등의 신체적 특징을 지닌다. 특히 유아기에는 토실토실한 아기 얼굴, 행복한 기분, 드문 울음소리, 낮은 근 긴장도, 섭식 장애 등의 특징이 있다. 수면 장애를 포함하여 언어 지체 및 발음 장애, 발달지체, 학습 장애, 정신지체, 활동항진과 자해, 폭발적 분노, 지속되는 짜증, 파괴적이고 공격적인 행동, 흥분성, 흥분시에 팔로 안거나 손을 끼우는 행동 등의 행동 발달적 특징을 나타낸다. 본 증례는 3세 3개월된 남아로 생후 10개월에 SMS를 진단받은 환자로 상악 좌측 제 1유구치의 통증을 주소로 본과에 내원하였으며, 임상 및 방사선학적으로 다발성 우식증을 보였으며, 소아과 주치의에게 의뢰한 결과 심내막염의 예방을 위한 항생제의 처치를 처방 받고, 환아의 행동 발달적 문제로 인해 물리적 속박의 방법 하에 외래에서 치료되었다. 이 증례를 통해 SMS라는 희귀한 증후군에 관하여 보고하고자 한다.

• 한국초지학회:학술대회논문집
• /
• 한국초지조사료학회 2002년도 창립 30주년 International Symposium
• /
• pp.5-56
• /
• 2002

The problems in the current domestic forage production were evaluated, and the prospective improvement was suggested in this paper. Grassland development in forest, production of high quality forages in upland and paddy land, efficient utilization of rice straw, development of new varieties of forages suitable for our environmental conditions and imported forages were described Among them, preferential production and utilization of forages using paddy field after rice harvest . should be enlarged for domestic supply of forages in Korea. Several studies were carried out to select the promising forage crops and barley cultivars for whole crop silage production, to determine productivity, nutritive value and production cost of forages produced in paddy field, and feeding effect of forages with Hanuwoo and milking cow for whole crop silage with forages produced in paddy field, 1999 to 2001, and also discussed restraint factors and activation plans for enlargement of forage production in paddy land. The promising forage crops in paddy field were rye and barley for Middle region, and rye, barley, early maturing Italian ryegrass and wheat for Southern region. The promising barley cultivars for whole crop silage in paddy field were Albori in Suwon, Keunalbori, Milyang 92, Saessalbori, and Naehanssalbori in Iksan, and Keunalbori, Albori, Naehanssalbori, and Saegangbori in Milyang, respectively. Silage production, quality and animal palatability of silage by trench and round bale were also compared. The production yields of whole crop barley silage(WBS) were 17,135kg as a fresh matter, and 6,011kg as a dry matter per ha, and the quality of WBS was 2∼3 grade, while that of rice straw silage was 4 grade as a farm basis. The production cost of WBS per kg was 83won as a fresh matter, and 238won as a dry matter. Feeding of WBS as forages on Hanwoo was very desirable for the improvement of live-weight gain, beef quality and farm income, particularly in growing stage of Hanwoo. Milk production and income were also increased, and feed cost was decreased by feeding of WBS. The daily voluntary intake of WBS in milking cow was 26.3kg as a fresh matter(DM 7.7kg) per head. Milk production when WBS was fed, was very similar to that of imported hay feeding such as Kentucky bluegrass or domestic corn silage. The issues to be solved in near future f3r stable forage production and supply in paddy land are sustainable livestock-forages policy, development & seed production of new varieties of barley, rye, Italian ryegrass and other promising forages, efficient demand & supply system of forages, solidification for mass production and utilization of forages, efficient application management of animal slurry on paddy field considering environmental agriculture/livestock industry, and break k development of bottleneck technique in production field. Domestic production & supply of high cost agricultural machine (round baler, wrapper, handler and so on), plastic wrapping film, and silage additives are also important.

• The Korean Journal of Physiology
• /
• 제10권2호
• /
• pp.39-45
• /
• 1976

This study was conducted to see whether the hippocampectomy exerted facilitatory influence upon gastric ulceration in animals, and if so, whether the effect of hippocampectomy could be suppressed by adrenalectomy. 107 male rats were divided into 5 groups: rats that had over 90% of their hippocampal tissue removed through an opening on each side of the cerebral cortex(hippocampal group, N=21), rats that received bilateral adrenalectomy(adrenal group, N=29), rats that received adrenalectomy as well as hippocampectomy(hippocampo-adrenal group, N=10), rats that received damage to each side of the cortex over the hippocampus(cortical control group, N=20), and rats that had solely their head skin incised(normal control group, N=27). All rats were kept without restraint or food deprivation until on the 25th day after surgery, the stomach of each rat was inflated with 7ml of physiological saline and then removed under deep anesthesia. The mucosal surface was sketched under dissecting microscope, and enlarged photographs$(4{\times})$ were taken. The percentage of animals developing gastric ulcer in each animal group was calculated, the number of ulcer in each stomach was counted, and the total area of ulceration per stomach was measured on the Photograph with the aid of superimposed graph paper and expressed as permillage of total area of the glandular mucosa. Results obtained were as follows: 1. The percentage of animals developing gastric ulcer was significantly larger in the hippocampal group than they were in the hippocampo-adrenal, the adrenal, the cortical, and the normal control groups. 2. The mean number of ulcer per stomach was significantly larger in the hippocampal group than they were in the adrenal, the cortical control, and the normal control groups, while no significant difference existed between the hippocampal and the hippocampo-adrenal groups. 3. Total area of ulcer per stomach was significantly larger in the hippocampal group than they were in the cortical control and the normal control groups, but no significant differ-ence existed among the hippocampal, the adrenal, and the hippocampo·adrenal groups. 4. All measured values of the adrenal group were not significantly different from those of the hippocampo-adrenal, the cortical control, and the normal control groups. It is inferred from the above results that the hippocampus exerts an inhibitory influence upon gastric ulceration and that the hippocampal influence is mediated only partly through suppression of pituitary·adrenal activity.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
• /
• 제10권2호
• /
• pp.244-251
• /
• 1999

자해행동은 정신지체에서 자주 나타나며, 특히 자폐증에서 더욱 많이 나타난다. 자해행동은 질환이라기보다는 하나의 증상군으로 다루어져왔지만, 사망률에 직접적인 영향을 줄만큼 응급인 임상적 상황이다. 본 증례는 반복적으로 머리를 때리는 자해행위를 보이는 난치성 자폐증 장애 환아가 입원한 상태에서 약물요법과 행동치료를 병행하여 치료하였기에 임상경험을 문헌고찰과 함께 보고하는 바이다. 환아는 7세된 남아로 99년 4월 20일 자해행동을 주소로 OO대학교 어린이병원 소아정신과에 내원하였으며 7월 10일까지 12주간 입원치료를 받았다. 약물치료로는 입원 4주경부터 haloperidol 0.5mg에서 1.0mg으로 증량하였고, naltrexone을 $25{\sim}50mg$을 입원기간중에 병합 투여하였다. 행동치료로는 차등강화(Differential Reinforcement of Other behavior)를 이용하여 정규적인 놀이학습을 수행하였고, 초기에 사용했던 신체적 강박을 해제하기 위해서 머리 보호대와 팔거리를 이용하였다. 현재 외래 통원치료중이며 약물은 haloperidol 0.5mg 및 naltrexone 50mg을 유지하고 있고, 환아 모를 교육하여 집에서 놀이학습을 한시간씩 수행하고 있다. 퇴원당시 자해행동은 중등도 이상 감소되었으며 외래에서도 호전된 상태를 계속 유지하고 있다.

• 헤리티지:역사와 과학
• /
• 제44권1호
• /
• pp.30-51
• /
• 2011

근대화 과정에서 우리나라의 수많은 농촌마을은 문화경관적 건전성을 상실한 채 변질이나 해체과정을 경험하고 있다. 그러나 충청남도 아산에 위치하는 외암마을(국가지정 문화재 중요민속자료 제236호, 세계문화유산 잠정목록)은 신전통주의 부흥을 추구하며 지속성을 유지한 채 한국의 대표적인 민속마을로 자리매김하고 있다. 외암마을은 예안이씨 동족마을로 500여년의 긴 역사 동안 환경적, 경제적, 사회적 지속성과 건전성을 지켜온 민속마을로서 문화유산적 가치 측면에서 'Outstanding Universal Value'의 필요충분조건을 갖춘 토속경관 사례이다. 유교적 문화경관 지표물(종가, 사당과 묘역, 신도비, 정려와 송덕비, 정자 등)과 다양한 민간신앙 요소(장승과 솟대, 당산목, 산신당, 마을숲 등), 그리고 유 무형의 생활문화(활발한 문중활동과 엄정한 조상숭배 의례, 가계계승의식, 공동체 농경문화 및 생태환경의 보존 등)를 지속성있게 전승함으로써 전통시대 양반촌을 상징하는 보편성과 완전성, 그리고 진정성을 유지한 채 정체성을 표출하고 있다. 특히, 동아시아의 독특한 환경설계원리인 풍수지리적 관점에서 마을을 자리 잡기하여 환경적으로 건전한 정주공간(nature + economy + environment + community)을 구축함으로서 토속성 짙은 문화경관을 완성한 사례가 되는데, 외암오산(광덕, 설아, 송악, 월라, 면잠)과 외암오수(용추, 인곡, 반계, 역천, 온정)와 같은 광역 생태문화경관의 보전과 같은 자연환경의 절제, 그리고 생태환경의 질서와 문화적 가치를 중시하는 환경관(capacity + healthy + sustain-ability)을 결합하여 지속성과 진정성을 지켜나가고 있다. 이러한 관점에서 볼 때 외암마을 토속문화경관은 유네스코 세계유산 등록기준 IV(인류역사의 발달단계를 보여주는 뛰어난 유형의 건축물이나 건조물 집합체 또는 조경유산)와 V(뛰어난 유형의 전통 인간 거주지 또는 급격한 변화로 파괴의 위험에 직면한 문화의 대표적 유산으로서 토지에 기반을 둔 유산)의 범주에 포함되는 우리나라 공동체 사회의 대표적 사례가 된다.