• 제목/요약/키워드: morphologic study

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Detection of the morphologic change on tidal flat using intertidal DEMs

  • Lee, Yoon-Kyung;Ryu, Joo-Hyung;Eom, Jin-Ah;Kwak, Joon-Young;Won, Joong-Sun
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume I
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    • pp.247-249
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    • 2006
  • The objective of this study is to detect a inter-tidal topographic change in a decade. Waterline extraction is a one of widely used method to generate digital elevation model (DEM) of tidal flat using multi-temporal optical data. This method has been well known that it is possible to construct detailed topographic relief of tidal flat using waterlines In this study, we generated two sets of tidal flat DEM for the southern Ganghwado. The DEMs showed that the Yeongjongdo northern tidal flat is relatively high elevation with steep gradients. The Ganghwado southern tidal flat is relatively low elevation and gentle gradients. To detect the morphologic change of tidal flat during a decade, we compared between early 1990's DEM and early 2000's DEM. Erosion during a decade is dominant at the west of southern Ganghwado tidal flat, while sedimentation is dominant at the wide channel between the southern Ganghwado and Yeongjongdo tidal flats. This area has been commonly affected by high current and sedimentation energy. Although we are not able to verify the accuracy of the changes in topography and absolute volume of sediments, this result shows that DEM using waterline extraction method is an effective tool for long term topographic change estimation.

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정상교합 및 III급부정교합의 두개악안면 골격요소에 관한 두부방사선계측학적 연구 (A ROENTGENOCEPHALOMETRIC STUDY ON MORPHOLOGIC FACTORS OF NORMAL OCCLUSION AND CLASS III MALOCCLUSION)

  • 김정호;서정훈
    • 대한치과교정학회지
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    • 제17권1호
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    • pp.23-32
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    • 1987
  • There are variations in regional cranial and facial balance as a normal developmental process and regional imbalances often tend to compensate each other to provide functional equilibrium. This study was designed to analyse the patterns of morphologic harmony and inharmony inherent in normal occlusion and malocclusion. The subjects consisted of 92 individuals with normal occlusion and 60 Class III malocclusion patients. Their lateral cephalograms were traced and analysed using the counterpart analysis described by Enlow. The normal occlusion group was divided into Normal Types A and B according to the relative positions of Points A and B. The following conclusions were reached: 1 The normal occlusion consisted of $28.3\%$ of Normal Type A and $69.6\%$ of Normal Type B. 2. The Normal Type A and B differed from each other in the morphology of the cranial base, the mandibular ramus and corpus, and the functional occlusal plane. The Normal Type B showed considerable mandibular protrusion effect in the effective dimension and alignment of the above factors. 3. Most normal individuals showed some degree of disharmony among morphologic factors but the deviations were relatively small. 4. The Normal Type B was less balanced than the Normal Type A. 5. More regional imbalances were involved in Class III malocclusion and the imbalances were more severe.

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현대 패션에 나타난 재현과 되기 현상에 대한 비교 연구 -미메시스와 들뢰즈의 되기 이론을 중심으로- (A Comparative Study on the Representation and Becoming Phenomenon Expressed in Contemporary Fashion -Focusing on the Theory of Mimesis and Deleuze's Becoming-)

  • 양희영
    • 한국의류학회지
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    • 제33권2호
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    • pp.200-212
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    • 2009
  • Since the late of 20C, contemporary fashion have becoming enlargement between role and function of fashion through the combination and the deconstruction among various different spheres. Because multi-functional and trans-formal fashion transforms and extends original space and role toward any other fields through the morphologic and structural combination, this has been freed form the representational function pursuing more simple morphologic imitation, and becomes to change the space that is able to 'becoming' of Jill Deleuze. This paper intends to make a comparative study between the representation phenomenon about simple morphologic imitation of existing fashion design, and the becoming phenomenon of fashion focused on the change toward any other different object. This studies' conclusion as follows. 1) First representation imitates a lot of nature forms that are able to be restored any fixed form and picture. 2) Second representation is the representation of representation that re-imitates imitated object and art work. 3) Ontalogical becoming is classified with depaysement, self-presentation of fashion, morphing, and becoming the nature as a element.

사상체질진단 두면부 분석프로그램의 Upgrade 연구 : 성별.연령별 특징 (The Upgrade of Sasangin Classification System by the Morphologic Study of Head and Face : Facial Differences on Sex and Age)

  • 석재화;윤종현;이준희;황민우;조용진;고병희;이의주;송일병
    • 사상체질의학회지
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    • 제19권3호
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    • pp.30-50
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    • 2007
  • 1. Objectives Facial features are the important personal characteristics. As a study of all the standardization research about the morphology of face and head, this study was carried out to find the differences according to sex, age. 2. Methods We have collected 1140 cases of patients of the Sasang constitutional Department of Kyung-Hee Medical Center and Kangnam Kyung-Hee Oriental Hospital. we took pictures their frontal view, lateral view of face and measured height, breaths and projected length of face with Face Features Measurement Program(FFMP) and analyzed shape differences of face according to sex, age. 3. Results We got the morphologic characteristics of face according to sex, age. And we will upgrade the Sasangin Classification System by this Morphologic study of Head and Face. 4. Conclusions 1) The morphologic characteristics of face according to sex (1) A man's head is longer and wider than a woman's in most measurement. (2) A woman's eye is bigger in height than man's. (3) A woman's face is looked full-filled than man's. (4) A man's polion is higher than pupil but a woman's polion is lower than pupil. 2) The morphologic characteristics of face according to age (1) Young age's forehead is longer and higher than old age's. (2) Young age's eyebrow is wider than old age's (3) Young age's eye is bigger in height than old age's (4) Old age's nose is longer, wider and lower than young age's (5) Old age's ear is longer than young age's (6) Old age's bigonial breath is wider than young age's (7) Old age's low face is extinguished than you age's

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사상인(四象人)의 형태학적(形態學的) 특징(特徵)에 관(關)한 연구(硏究) (A Morphologic Study of Sasang Constitution)

  • 이은주;고병희;송일병
    • 사상체질의학회지
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    • 제10권2호
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    • pp.181-220
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    • 1998
  • 1. PURPOSE This is a quantitative analysis of Sasang Constitution by measuring human body except face. This study is carried out for the purpose of searching out the theory of Sa-cho and the morphologic theory of Sasang Constitution. 2. METHOD (1) SUBJECTS Subjects are 338 person came to Dept. of Sasang Constitutional Medicine (KyungHee Oriental Medical Center) and Oriental Medicine and Western Medicine Cooperative Health Examination Center (KyungHee Medical Center) from October 1997 to Jauary 1998. The mean age is $41.7{\pm}12.39$. (2) CLASSIFICATION OF SASANG CONSTITUTION QSCCII(Questionnaire for the Sasang Constitution Classification) is used for the Classification of Sasang Constitution. The distributions of Sasang Constitution Classification are Soeumin 83, Soyangin 98, and Taeumin 157. (3) MEASURING INSTRUMENT & ITEMS Length, Breadth, Circomferece, and Skinfold thickness of each body segment are measured by Martin's measuring instrument and Skinfold Caliper. Measured items of this study is based on Lohman's methods and is added new items. (4) DATA ANALYSIS The Volume, Weight, Rate, and Index of each group are calculated by using measuring items. The difference of each group is analyzed by SPSS 7.0 for Win. 3. RESULT (1) THE MORPHOLOGIC CHARACTERISTIC of TAEUMIN First of all, the Taeumin has a emormous morphology. His trunk is huge but head-neck and limbs is small. The volume and weight of head-neck is smaller than other body segments but the volume and weight of upper-abdomen is bigger than ones. (2) THE MORPHOLOGIC CHARACTERISTIC of SOEUMIN The Soeumin has a small morphology. His head-neck rate is bigger than Taeumin's but his trunk rate is smaller than Taeumin's. And his lower limbs rate is bigger than other constitution but it's not a significant difference. His neck is thinest and longgest than others. His chest is thin and narrow. His lower-abdomen rate is bigger than other constitution but it's difference is not significant. (3) THE MORPHOLOGIC CHARACTERISTIC of SOYANGIN Soyangin has a middle size at head-neck and chest part. But the rate of upper limb is higer than other constitution. And the rate of lower-abdomen part is lower than other constitution. but that's not significant.

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토끼 기관에 이식한 혈행성 연골막-구강점막 복합피판의 형태학적 연구 : III. 면역조직화학적 연구 (Morphologic Study on a Vascularized Composite Flap for Tracheal Reconstruction in Rabbit:III. Immunohistochemical Study)

  • 김은서
    • 대한기관식도과학회지
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    • 제3권2호
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    • pp.253-260
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    • 1997
  • Successful regeneration of a cartilage framework using perichondrium has been reported by several authors but there are some arguments surrounding mucosal regeneration. Some authors report that regeneration of mucosa is completed by ingrowth from neighboring tissue but others insist that it occurs via metaplasia from the squamous epithelium. This study was designed to investigate the differences, especially in mucosal regeneration between nonvascularized and vascularized flaps via immunohistochemical study. A morphologic study was carried out to elucidate the characteristics o( the regenerated mucosa which was sutured on the vascularized perichondrium and fabricated in a rabbit ear. A nonvascularized perichondrial-mucosal composite flap with the same dimension was transferred in the control group. BrdU was labelled on both normal mucosa and grafted mucosa in the experimental group without my statistically significant differences. In cytokeratin stain, it was regarded that mucosal coverage of the control group occurred by ingrowth from the neighboring mucosa. It can be conceived that metaplasia of the grafted mucosa occurs in a vascularized composite flap transferred group.

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The Polymerase Chain Reaction in Diagnosis of Small B-Cell Non-Hodgkin Lymphomas

  • Antoro, Ester Lianawati;Dwianingsih, Ery Kus;Indrawati, Indrawati;Triningsih, FX Ediati;Harijadi, Harijadi
    • Asian Pacific Journal of Cancer Prevention
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    • 제17권2호
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    • pp.491-495
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    • 2016
  • Background: Small B-cell non-Hodgkins lymphoma (NHL) is difficult to be distinguished from non-neoplastic reactive processes using conventional haematoxylin-eosin (HE) staining due to different interpretations among pathologists with diagnosis based on morphologic features. Ancillary examinations such as immunohistochemical (IHC) staining are essential. However, negative or doubtful results are still sometimes obtained due to unsatisfactory tissue processing or IHC technique. The polymerase chain reaction (PCR) as a molecular diagnostic technique is very sensitive and specific. Clonality detection of heavy chain immunoglobulin (IgH) gene rearrangement has been widely used to establish diagnosis of B-cell NHL. Aims: To elaborate interobserver variation in small B-cell NHL diagnosis based on morphologic features only and to confirm sensitivity and specificity of the PCR technique as an ancillary method. Materials and Methods: A toptal of 28 samples of small B cell NHL and suspicious lymphoma were interpreted by 3 pathologists in Sardjito General Hospital based on their morphology only. The reliability of assessment and the coefficient of interobserver agreement were calculated by Fleiss kappa statistics. Interpretation results were confirmed with IHC staining (CD20, CD3, Bcl2). PCR was performed to analyze the clonality of IgH gene rearrangement. Results: Interobserver agreement in morphologic evalution of small B cell NHL and chronic lymphadenitis revealed kappa coefficient 0.69 included in the substantial agreement category. The cases were divided into 3 groups based on morphology and IHC results; lymphoma, reactive process and undetermined group. PCR analysis showed 90% sensitivity and 60% specificity. Conclusions: The present study revealed a substantial agreement among pathologists in small B-cell NHL diagnosis. For difficult cases, PCR is useful as complementary method to morphologic and IHC examinations to establish definitive diagnosis.

전해질 농도와 식각시간에 따른 비귀금속합금의 표면조도 변화 (EFFECTS OF ELECTROLYTE CONCENTRATION AND ETCHING TIME ON SURFACE ROUGHNESS OF NI-CR-BE ALLOY)

  • 허재웅;전영찬;정창모;임장섭
    • 대한치과보철학회지
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    • 제38권2호
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    • pp.178-190
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    • 2000
  • The purpose of this study was to evaluate the surface roughness of Ni-Cr-Be alloy($Verabond^{(R)}$, Aalba Dent Inc., USA) according to electrolyte concentration and etching time. Total of 150 metal specimens ($12{\times}10{\times}1.5mm$) composed of 5 polisded specimens, 5 sandblasted specimens, 140 etched specimens were prepared. Etched groups were divided into 28 groups by the $HClO_4$ concentrations(10, 30, 50, 70%) and etching times(15, 30, 60, 120, 180, 240, 300 seconds). The mean surface roughness(Ra) and the etching depth were measured with Optical 3-dimensional surface roughness measuring machine(Accura 1500M, Intek Engineering Co., Korea) and observed under SEM. The results obtaind were as follows: 1. Surface roughness(Ra) and etching depth were affected by the order of etching time, electrolyte concentration, and their interaction(P<0.05). 2. Surface roughness(Ra) and etching depth were increased with etching time in 10%, 30% electrolyte concentrations, but they had no significant difference with etching time in 70% (P<0.05). 3. Surface roughness(Ra) and etching depth decreased in the order of 30, 10, 50, 70% electrolyte concentrations from 120 seconds etching time(P<0.05). 4. The remarkable morphologic changes in etched surface were observed along the grain boundaries in 15, 30 seconds of 10%, 30% concentrations and the morphologic changes could be denoted in the grains themselves as well as along the boundaries with the lapse of time. Even though the noticeable morphologic changes also took place in etched surface with 50% concentration, the degree of changes were less than that of changes with 10%, 30%. However, there were little morphologic changes with 70% concentration regardless of etching time. 5. Surface roughness(Ra) of sandblasting group with $50{\mu}m\;Al_2O_3$ had no significant difference with 30%-30 seconds etched group(P<0.05).

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Positional and morphologic changes of the temporomandibular joint disc using magnetic resonance imaging

  • Ahn Hyoun-Suk;Cho Su-Beom;Koh Kwang-Joon
    • Imaging Science in Dentistry
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    • 제31권4호
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    • pp.235-240
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    • 2001
  • Purpose: To evaluate displacement and morphologic changes of the temporomandibular joint (TMJ) disc in patient with internal derangement using magnetic resonance imaging (MRI). Materials and Methods: One hundred and forty five MR images of TMJs in 73 patients were evaluated. Positional and morphologic changes of the TMJ discs were assessed. Lateral or medial disc displacement was also evaluated on coronal images. Results: Among 63 discs with anterior disc displacement, 37 discs were assessed as a biconcave disc and 21 as a deformed disc. Rotational disc displacement was observed in 35 discs. Anteromedial disc displacement was observed in 29 discs, and anterolateral direction in 6 discs. Among 35 rotational displacement, 5 biconcave discs and 21 deformed discs were observed. Conclusion : Rotational and sideways displacement of TMJ discs were found to be common and an important aspect of internal derangement. This study also suggests that sagittal and coronal images of the TMJ have complementary abilities for an assessment of joint abnormality.

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