• 제목/요약/키워드: PECT

검색결과 29건 처리시간 0.021초

고차전단변형을 고려한 적층복합판 및 쉘의 열-습윤 휨해석 (Hygrothermal Bending Analysis of Laminated Composite Plates and Shells Considering a Higher-order Shear Deformation)

  • 한성천;윤석호
    • 한국전산구조공학회논문집
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    • 제12권1호
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    • pp.37-44
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    • 1999
  • 비등방성으로 적층된 복합판 및 쉘구조물에서 온도와 습도의 급격한 변화는 구조물의 강도와 성능을 저하시키는 중요한 원인이 된다. 더욱이 하중에 의한 역학적 변위와 조합될 때에는 좌굴, 대변형 혹은 고응력 상태를 유발하게 된다. 본 연구에서는 이중 퓨리에급수를 이용하여 3차의 전단변형함수로 가정된 평형방정석을 전개하고 폭-두께비, 형상비의 변화 그리고 재료의 성질에 따른 결과에 대하여 고찰하였다.

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컨테이너 터미널의 장비규모 및 처리능력에 대한 시뮬레이션 연구 (A Simulation Study for Equipment Scale and Hanoling Capacity of Container Terminal)

  • 윤원영;최용석
    • 한국항해항만학회:학술대회논문집
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    • 한국항해항만학회 1999년도 추계학술대회논문집
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    • pp.177-185
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    • 1999
  • This paper deals with the case study that determine the best equipment scale to be satisfied a handing capacity of the container terminal using computer simulation techniques. The objective of this study is to suggest an operation alternative of equipment scale including container canes, transfer cranes, and yard tractors which reflects a container throughput. For the simulation, the object-oriented simulator with the special purpose of container terminal analysis is used. And the used simulator was developed to simulate the transfer crane based container terminal for yard equipment. Using the simulator, we test an existing port container terminal, PECT(Pusan East Container Terminal).

경인지역에 유통되는 분쇄육 중 장출혈성대장균의 분포 조사 및 특성 연구 (Prevalence and Characterization of Enterohemorrhagic Escherichia coli (EHEC) Isolated from Ground Beefs Distributed in Gyeong-In Region)

  • 김은정;박용춘;조준일;이종옥;김희연
    • 한국식품과학회지
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    • 제38권6호
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    • pp.773-778
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    • 2006
  • The objective of this study was to evaluate three verocytotoxin-producing Escherichia coli (VTEC) detection kits to detect the presence of VT genes: Doupath Verocytotoxin (GLISA) developed by MERCK, ProsPect Shiga Toxin E. coil (STEC) Microplate Assay (ELISA) developed by Remel, and a polymerase chain reaction method. Our laboratory verified artificially inoculated samples. All three methods could detect very low numbers of VTEC, but VT-PCR had the best sensitivity for VTEC detection. From April through September 2005, 257 ground-beefs from supermakets and traditional markets were examined for the presence of VTEC by polymerase chain reaction immediately after purchase and total viable counts (TVC) were determined. VTEC was isolated from 30 of 257 ground-beefs. A variety of serogroups was found, including 10 stains belonging to the virulence type EHEC, but major serogroups such as O157, O26 and O111 were nor found.

파리컬렉션에 나타난 한국적 패션 디자인의 특성에 관한 연구 (Research for Characteristics of Korean Fashion Design Showing at Paris Collection)

  • 김인경
    • 복식
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    • 제38권
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    • pp.233-244
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    • 1998
  • This research wants to find the possibility for new paradigm of modern Korean dress by accepting and harmonizing the tradition and the modernization of Korean design when Korean designers enter into Paris collection and express identity of Korean fashion, and investigates the characteristics of Korean design with concentrating on the works of Young-hee Lee, Shin-woo Lee, Tae-ok Jin who have exhibited their works at Paris Collection. For one of the above characteristics Young-hee Lee, a designer of Korean clothes, emphasized to build up image of Korean fashion as a form of Korea without any modification, and expressed universal western-style silhouette as Korean image by using traditional technique including dyeing and silk made by herself, quil-t and decorative saddle stitching. In the as-pect that a chain of work has made not by westernization of Korean clothes but by re-creation of Korean clothes, it suggested a new way of modern Korean fashion with harmonizing tradition with modernizations as of present based on our own dress tradition and have got good reputation from the press and the field in Paris as well. Therefore the tradition and the modernization of Korean design is not confronted or compromised in form, color, material, motif and decoration but has to be harmonized and reconciled independently in order that visual characteristics of dress can be made as one of Korean image.

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항만기술인력의 교육제도 개선방안 (A Study on the Education System of Port Labor in Pusan Port)

  • 박남규;남율수
    • 한국항만학회지
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    • 제12권2호
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    • pp.261-268
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    • 1998
  • The productivity of port labor in Pusan port is very low and the ratio of port accident is high in comparision with other advanced foreign ports. The aim of this paper is to find why the productivity in Pusan port is much lower than that of other countries in terms of port labor education systems. To obtain the objective of this study, the writers used 163 questionnaire for port labor in BCTOC, PECT and UTC for the survey of training method of cargo equipment handling. The result of this study shows as follows; (1) From the fact that ratio of labor who were trained by KPTI was 2.5%, we could say the public training system of port labor is not operated properly (2) As most of laborers are trained by the experienced associate, they do not recognize how the level of cargo handling equipment is set to increase the productivity. (3) In order that the port public training system plays a good role in port industry, a new license system should be introduced and an expert education system should be developed.

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난경(難經)에서 안맥(按脈)의 경중(輕重)에 따른 오장배속방법(五臟配屬方法)에 대(對)한 맥경(脈經)과의 비교(比較) 연구(硏究) (A study in Mack-Gyung(脈經) on taking pulse of relative weight to five Viscera attachment system in Nan-Gyung(難經))

  • 남두열;김태희
    • 대한한방내과학회지
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    • 제13권1호
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    • pp.61-69
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    • 1992
  • In Nan-Gyung, showed that could know the lung condition taking pulse with the weight of three beans, the heart condition taking pulse with the weight of six beans, the spleen condition taking pulse with the weight of nine beans, the liver condition taking pulse with the weight of twelve beans, the kidney condition pressing to bone(骨). This theory is first suggested in Nan-Gyung(難經). In those case, the weight of three, six, nine, twelve beans and pressing to bone don't mean not the real weight but the relative weight(輕重) of taking pulse(按脈). In other words, those represent Boo Jung Chin(浮中沈), which are the conception of the upper, the meddle, the lower part(上中下). So, we could take pulse of the heart and the lung condition in Boo(浮), the spleen condition in Jung(中), and the liver and the kidney condition in Chim(沈). The heart and the lung pulse showed in the Boo(float level) must be seen with Boo-Mack(부맥 : float pulse), the liver and the kidney pulse showed in Chim (sinklevel) must be seen also with Chin-Mack(沈脈 : sink pulse). The result of the method of taking pulse of viscera with relative weight focused on the as pect of mornal pulse(平脈) and disease pulse(病脈) of five viscera in Mack-Gyung publeshed later than Nan-Gyung and special works which made a comprehensive survey the result is as follow. 1. In normal pulse of five viscera, the heart and the lunk pulse were shown with Boo-Mack(浮脈:float pulse) as the central figure, the liver's and the kidney's pulse were shown centering around Chim-Mack(沈脈: sink pulse) and the spleen's pulse was shown with Wan-Mack(緩脈) which is vital force of stomach(胃氣) and seen in only middle part. 2. In disease pulse of five viscera, frequently, the heart and the lung pulse was shown as Chim-Mack(sink pulse), the liver and the kidney pulse was seen as Boo-Mack (float pulse). 3. In the case of normal pulse. the method of taking pulse with relative weight in Nan-Gyung agree with the normal pulse of five viscera in Mack-Gyung. But in the case of disease pulse, they didn't correspond with the other. 4. So the method of taking pulse with relative weight in Nan-Gyung is not the exam pulse which ca be used in the clinical diagnosis but one of the feeling pulse way to bring in the conception of location of the visceras. 5. From now on, the method of taking pulse rdlated to relative weight need to be looked into minutely compared with later physician's theory than Mack-Gyung.

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기저핵 출혈에 의한 교차 소뇌 해리 현상 (Crossed Cerebellar and Cerebral Cortical Diaschisis in Basal Ganglia Hemorrhage)

  • 임준석;유영훈;김희중;이병희;김병문;이종두
    • 대한핵의학회지
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    • 제32권5호
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    • pp.397-402
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    • 1998
  • 목적: 대뇌피질의 구조적 병변이 없는 기저핵 혈종환자에 있어서, 대뇌와 소뇌의 해리 현상에 관해 알아보고자하였다. 대상 및 방법 : CT와 MRI상 혈종이 기저핵에 국한되고, 대뇌 피질의 구조적 병변이 없는 12명의 환자를 대상으로 하였다. Tc-99m ECD PECT검사가 전 예에서 시행되었고, 대조군으로 MRI상 구조적 병변이 없고 SPECT 검사상 육안적으로 정상 소견을 보인 20명의 정신과 환자가 선택되었다. 해리 현상에 의한 rCBF의 변화를 육안적으로 확인하였고, 반정량적 분석을 위해 asymmetric index (AI)를 이용하였다. AI가 기저핵, 시상, 소뇌와 대뇌 피질 (전두엽, 측두엽, 두정엽)에서 측정되었고, 대조군 AI의 (평균+2X표준편차)보다 큰 AI를 가지는 경우를 저혈류로 정의하였다. 결과: 환자군에서 측정된 소뇌와 대뇌 피질의 평균 AI는 대조군과 비교하여 통계학적으로 의미 있게 큰 수치를 보였다 (p<0.05): 소뇌 ($18.68{\pm}8.94$ vs $4.35{\pm}0.94$, 평균 표준표차), 시상 ($31.91{\pm}10.61$ vs $2.51{\pm}1.45$), 기저핵 ($35.94{\pm}16.15$ vs $4.34{\pm}2.08$), 두정엽 ($18.94{\pm}10.69$ vs $3.24{\pm}0.87$), 전두엽 ($13.60{\pm}10.8$ vs $4.02{\pm}2.04$), 측두엽 ($18.92{\pm}11.95$ vs $5.13{\pm}1.69$). 12명의 환자 중 혈종의 반대측 소뇌(10명), 동측 시상 (12명) 동측 두정엽 (12명), 전두엽 (6명), 측두엽 (10명)에서 육안적으로 또한 AI를 이용한 반정량적 분석상 의미 있는 저혈류를 보였다. 결론: 교차소뇌해리 현상과 피질 해리 현상은 기저핵 혈종 환자에서 빈번하게 관찰되었다. 이는 교차 소뇌해리 현상이 기존에 알려진 피질 뇌교 소뇌로 (corticopontocerebellar tract)의 장애가 없이도 발생할 수 있다는 것을 시사한다.

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단추에 관한 연구 -19, 20세기를 중심으로- (The Study on the Buttons (centering around 19th-20th Centuries))

  • 이영란
    • 복식
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    • 제22권
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    • pp.263-276
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    • 1994
  • The achievement of notable social reoforms attained during the period of 19th and 20th centuries needlessly speaking remodelded the social environmental into several different patterns such as :1) high industrialization 2) propensity to consume 3) up graded overall social stands. Accordingly the industrial world of the but-tons too established the mess production syhstem by breaking from convention of hand-craft work of 17th century. The raw materials used in the production line on buttons during the 20th century are almost all-kind of materials one can possibly named including cheap plastic which enabled production lines to produce cheaper but higher productivities of the buttons being produced, The design (incused design) used in the 19-20h centuries are : men landscape, sports features, birds, livestocks, bugs, or geomatric features, tec, 1, The classification o f the buttons by materials Techniques shapes colors marking (Incused design) used in the productionof buttons in the England United States of America Laska Italy france Denmark Japan and India are categolizzed as : natural raw materials and syntetical resines. 1) Of the natural raw materials used are : Matal Enamel Iodine Agate, Coral, Green jade(Jasper) Granite, Wood, Ivory, Horn and bone etc. 2) The sythetical resin used in the button in-dustries are : Artificial jewell glass Acrylic material Styroform Celluloid and Nylon etc. 2. The thecnique quoted in producing buttons are hand craft work inlay work precision casting press mosic dye etching, processing, engraving and embossed carving etc. 3. The major designs used in the buttons in -dustries are : Round shape however elliptical column angular and edge shape often used. 4. The colors used are : The multi-colors were highly used than mono-colored materials such as : Adjoining Color and Contrast Color. The highest consideration to be considered in choosing the colors for the buttons are harmonization and matching factor with the garment or dresses to be wore. 5. The major design(incused design) on the buttons are embodiment and the design were also used in order of abstractive-combination abstractive with has offers much surprising. The button industries during the 19th and 20th centuries were not only the determination factors those can judge the value of self-pride of Nation and which were far beyond the in-dustrial arts in those days but also highly refelected and influenced by cultural sense ideology and self-pride of the Nation of those period. The followings are details of the role of the buttons categolized in the order of functional ornamental and symbolical aspects : 1. The functional role : The functional role of the buttons were simply designed for dress how-ever the buttons beyond from this role of function now a days. 2. The ornamental role : The ornamental role of he button beyond from this role of the button were effectuated by : 1) shape materials colors 2) technique locations size and design (incused design) 3) The ramaterials used for buttons shall not be over looked because it is highly depends on the taste sense and combination of harmony with the garment to be wore. 4) The color of the buttons are made well contrasted with the color of garments just as in the case of other artistical area such as matchs with the color of garment of contrast with brigtness of colors contrasted as complementary color and so and so. 5) The technique being adoped are: precision casting press handcraft inlay work etching mosic etc,. Since the buttons are no longer a simple catching devise used to fasten together the different part of the dress but now it has formed own and occupied the independent role in the garment or dresses location can be de-termined and varying depending on the ideas of designers. The size of the buttons has no specific limits, However the variation has widely dependined on the entire circumperence rhythm contrast harmonization of the garments. 3. The symbolical role : Since the button is no longer a just a simple devise for catching and fastening device used fastening together the different part of the garments but now were built a independent area as major part of the Garment and well reflected all kinds of occupations political background cultural as-pect etc. on the buttons. The design of buttons in the western circles are more simplified but they are polished looks and their techniques of manufacturing are comination of both machanis and handcraft. The colors used in the buttons are pretty well harmonized with garment(dress). Almost all kind of materials can be used in the but-tons however materials used in the buttons are : Bone of livestocks ivory, turtle shell are no longer used because the prevention of cruely of animal. On the contraly the level of buttons indus-try of Korea is far to reach and catch up with the level of western circles. It is highly suggested therefore the but-tons industrial field of Republic of Korea shall place and encouragement in producing beter industrial environment of the buttons based on the traditional and cultural aspect of republic of Korea to produce both manufacturing of qulified and best designed and colored buttons.

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I-123 IPT SPECT를 이용한 주의력결핍 과잉행동장애 아동에서의 methylphenidate 투여 전후의 기저 신경절 도파민 운반체 밀도 변화 측정 (Dopamine Transporter Density of the Basal Ganglia in Children with Attention Deficit Hyperactivity Disorder Assessed with I-123 IPT PECT)

  • 류원기;김태훈;유영훈;윤미진;천근아;지대윤;김종호;최태현;이종두
    • 대한핵의학회지
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    • 제37권4호
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    • pp.235-244
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    • 2003
  • 목적: 주의력결핍 과잉행동장애 (Attention Deficit Hyperactivity disorder : 이하 ADHD)는 도파민계의 이상 기능으로 생기는 대표적 소아정신과 질환이다. Methylphenidate는 dopamine transporter(DAT)를 차단함으로써 ADHD 증상을 호전시키는 약물로 널리 알려져 있다. 따라서 본 연구에서는 ADHD 아동들을 대상으로 I-123 IPT SPECT를 이용하여 methylphenidate 투여 전후의 DAT density 양상을 비교해 보고자 한다. 대상 및 방법: 연구대상은 9명의 ADHD 아동과 7명의 정상 대조군이었다. ADHD 아동군과 정상 대조군에게 모두 약물 비노출 상태에서 $[^{123}I]IPT$를 정맥 주사후 2시간이 경과한 상태에서 SPECT를 촬영하였다. 이후 ADHD 아동군을 대상으로 methylphenidate 0.7mg/kg/d을 투여한 후 약 8주가 경과한 상태에서 $[^{123}I]IPT$ SPECT를 재촬영 하였다. Methylphenidate 투여 전과 후의 좌, 우측 기저 신경절 DAT 특이결합/비특이결합 비율을 구한 뒤 비교하였고, 약물 투여 후의 ADHD 증상 척도로 측정한 증상 호전도와 좌, 우측 기저 신경절 DAT 특이결합/비특이결합 비율 변화사이의 상관관계를 알아보았다. 결과: ADHD 아동군에서 약물 비노출 상태와 정상 대조군 사이의 좌, 우측 기저 신경절 DAT특이결합/비특이결합 비율을 비교한 결과 DAT 결합 비율이 정상 대조군에 비해서 유의하게 증가되었다. (Right : z=2.057, p=0.041 ; Left z=2.096, p=0.032). 또한 ADHD 아동들에게 methylphenidate 투여 전과 후 상태에서의 기저 신경절 DAT 특이결합/비특이결합 비율을 비교한 결과, methylphenidate 투여 후 상태가 methylphenidate 투여 전 상태에 비해 좌, 우측 DAT 결합비율이 유의하게 낮아진 것을 관찰할 수 있었다. (우측 : t=3.239, p=0.018 ; 좌측 : t=3.133, p=0.020). ADHD 증상의 호전도와 좌, 우측 기저 신경절 DAT 특이결합/비특이결합 비율 변하사이에는 유의한 상관관계를 보이지 않았다. 결론: 이러한 결과는 주의력결핍 과잉행동장애의 치료제인 methylphenidate가 작용하는 기전을 이용하여 주의력결핍 과잉행동장애의 병태생리와 연관된 도파민계 기능이상 가능성을 지지한다고 생각된다.