• Title/Summary/Keyword: 확장방

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Clinical Implications of the Premature Loss of the Mandibular Primary Canine (하악 유견치 조기탈락은 무엇을 의미할까?)

  • Lee, Sang-Ho
    • Journal of the korean academy of Pediatric Dentistry
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    • v.42 no.1
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    • pp.87-101
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    • 2015
  • The premature loss of the mandibular primary canine is relatively frequent and a sign of the upcoming space problems in the transitional period. This situation is caused by the permanent lateral incisor resorbing the root of the primary canine during its eruption. Bilateral loss of primary canines in a crowded arch leads to the lingual tipping of the permanent incisors, with the consequent reduction in the arch perimeter and increase in overbite. When the loss of a primary canine is unilateral, tipping of the adjacent incisors occurs toward the space, resulting in midline deviation. In these situations, treatment possibilities, such as extraction of the antimeric tooth or placement of a passive lingual arch, can be applied; although there are some controversies concerning this. Most space problems with less than 4 mm can be resolved through preservation of the leeway space using sequential disking of the primary teeth and a passive lingual arch, regaining space or limited arch expansion in the late mixed dentition. In cases with 4~6 mm of space problems, arch expansion (A-P or transverse) can be applied. Space problems with more than 6 mm should be treated through diagnosis and treatment planning. Most of these cases will require extraction of permanent teeth including serial extraction (guidance of eruption).

The Study on the Educational program for the gifted students in Mathematics -The regularity and generalization of Hanoi Tower with 4 pillars- (수학분야 영재 수업 프로그램 연구 -기둥이 4개인 하노이 탑의 규칙성과 일반항-)

  • Bang, Seung-Jin;Choi, Jung-Oh;Lim, Jin-A;Koh, Jung-Ho;Lee, Jung-Seung;Nam, Ju-Gang;Jeon, Gyu-Min
    • Communications of Mathematical Education
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    • v.21 no.1 s.29
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    • pp.19-31
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    • 2007
  • Currently the mathematics gifted students educational program is plentifully being developed for the elementary and the junior high school students. But the educational program for the gifted students who comes and goes to the high school is not many. This study look for the regularity and generalization of Hanoi Tower with 4 pillars, from the regularity and generalization of Hanoi Tower with 3 pillars. I think this study will be a clue to find the regularity and generalization of Hanoi Tower with n pillars, it's not solved still.

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An Analysis of Lessons on Geometric Patterns for Developing Functional Thinking of Elementary School Students (초등학생의 함수적 사고 신장을 위한 기하 패턴 지도 사례의 분석)

  • Pang, JeongSuk;SunWoo, Jin
    • Journal of Educational Research in Mathematics
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    • v.26 no.4
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    • pp.769-789
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    • 2016
  • Pattern activities are useful to develop functional thinking of young students, but there has been lack of research on how to teach patterns. This study explored teaching methods of geometric patterns for developing functional thinking of elementary school students, and then analyzed the lessons in which such methods were implemented. For this, three classrooms of fourth grades in elementary schools were selected and three teachers taught geometric patterns on the basis of the same lesson plan. The lessons emphasized noticing the commonality of a given pattern, expanding the noti ce for the commonality, and representing the commonality. The results of this study showed that experience of analyzing the structure of a geometric pattern had a significant impact on how the fourth graders reasoned about the generalized rules of the given pattern and represented them in various methods. This paper closes with several implications to teach geometric patterns in a way to foster functional thinking.

Mixed sense of the media installation work (미디어 인스톨레이션에서 나타나는 혼성적 감각에 대한 연구)

  • Bang, Eun-Jung;Choi, Young-Sun;Yoon, Joon-Sung
    • 한국HCI학회:학술대회논문집
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    • 2009.02a
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    • pp.1156-1159
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    • 2009
  • Since the middle of the 1960's, revitalization of the media art has showed a new paradigm shift as a alternative to existing art genre. According to advances in technology the form of art becomes various. Nowdays, art work which is mixed with media and other genre is popular because of hybrid culture. The image medium has flexibilty to incorporate with other genre because of medium character. The media installation that applied the image medium means to mixed work of sculpture and media. The sculpture and media has been broadened the field through the media installation. this study discuss art works projected image on sculpture among various media installation works. The materiality of the sculpture and the vision of the image mix up each other. It is associated with M. Merleau-Ponty's sens theory.

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A Study on the Effects of Fin Length on Natural Convection Heat Transfer from a Inclined Flat Plate (경사평판에서의 핀길이가 자연대류 열전달에 미치는 영향에 관한 연구)

  • 천대희
    • Fire Science and Engineering
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    • v.12 no.1
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    • pp.3-8
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    • 1998
  • This study has been conducted experimentally on the effects of natural convection heat transfer characteristics for inclined flat plate with vertical fin in air. The effects of various fin length, flat plate inclined angle and Grashof number are mainly investigated The experimented results are as follows: The mean heat transfer coefficient increase according to the decrease of H/S in the various fin lengh. The mean heat transfer coefficient at H/S-0.5, 1.0, 1.5 for Gr=2.11$\times$103. $\theta$=00 increase by 107%, 43%, 15% than H/S=2.0. The mean heat transfer coefficient decrease with the increase of $\theta$ the inclined angles. The mean heat transfer coefficient at Gr=2.97$\times$103 is constant, at $\theta$= 00 for H/S=0.5 decrease by 33% than $\theta$=90$^{\circ}$. The mean heat transfer coefficient increase as Grashof as Grashof number increase. The mean heat transfer coefficient at Gr=2.31$\times$103, Gr=2.61$\times$103, Gr=2.97$\times$103 for H/S=1.0, $\theta$=0$^{\circ}$increase by 9%, 16%, 28% than Gr=2.11$\times$103.

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A Case Report of a Patient with Bronchiectasis Managed with Sikyungbanha-tang (시경반하탕(보험제제)을 통한 기관지확장증 환자의 관리 1례)

  • Kim, Jae-hyo;Bhang, Yeon-hee;Do, Ha-yoon;Yu, Chang-hwan;Kim, Kwan-il;Lee, Beom-joon;Jung, Hee-jae
    • The Journal of Internal Korean Medicine
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    • v.39 no.3
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    • pp.443-449
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    • 2018
  • Objective: This case reports the management of a patient with bronchiectasis treated with Sikyungbanha-tang, an herbal extract covered by national health insurance. Methods: Twice a year, the patient was treated for a 30-day period with the herbal extract Sikyungbanha-tang. History-taking and a chest X-ray (CXR) were used to evaluate the effects. Results: Following treatment with herbal medicine, the patient's complaints of symptoms decreased, and improvement was shown on CXR. Conclusions: Sikyungbanha-tang in herbal extract form in insured herbal extracts has effects on the management of bronchiectasis patients.

An Analysis of Mathematics Instruction for Professional Development of Elementary School Teachers for Gifted (초등 영재 교사의 수업 전문성 신장을 위한 수학 수업 사례 분석)

  • Kim, MinJeong;Pang, JeongSuk
    • Education of Primary School Mathematics
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    • v.19 no.2
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    • pp.143-160
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    • 2016
  • Despite the recent increasing interest in classroom expertise of teachers for gifted there has been lack of research on exploring or analyzing the components of classes for gifted tailored to the characteristics of each subject matter Given this, this study looked for the components of performance domain of classes for gifted in mathematics and then analyzed one teacher's 12 lessons in terms of the components. The features of the lessons included the establishment of classroom atmosphere by considering the characteristics of mathematically gifted students, the introduction of or expansion to mathematically enriched tasks, promotion to mathematically higher thinking, and emphasis of mathematical pattern, connections, and utility. This study is expected for researchers to provide a practical case on how to analyze elementary classes for gifted in mathematics. It also helps teachers who teach gifted students to develop professional vision of mathematics instruction and to increase their classroom expertise.

Higher-order Shear Deformable Analysis of Laminated Plates on Two-parameter Elastic Foundations (Two-parameter 탄성지반위에 놓인 고차전단변형 적층판의 해석)

  • Han, Sung-Cheon;Jang, Suk-Yoon
    • Journal of Korean Society of Steel Construction
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    • v.13 no.1
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    • pp.101-113
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    • 2001
  • The main purpose of this paper is to present deflections of laminated composite plates on the two-parameter foundations. that is an elastic foundation with shear layer. This paper focuses on the deformation behaviour of anisotropic structures on elastic foundations. The third-order shear deformation theory is applied by using the double-fourier series. To validate the derived equations the obtained displacements for simply supported isotropic and orthotropic plates on elastic foundations are compared with those of Timoshenko and LUSAS program. The results show an excellent agreement for the isotropic and LUSAS program. The results show an excellent agreement for the isotropic and orthotropic plates on the elastic foundations. Numerical results for displacements are presented to show the effects of side-to-thickness ratio aspect ratio, material anisotropy and shear modulus of foundations.

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Extended indications of Four-Constitution Medicine formula using "Dongeuibogam" - The case of Bojungyikgi-tang - ("동의보감(東醫寶鑑)"을 이용한 "동의수세보원(東醫壽世保元)" 수록(收錄) 사상방(四象方)의 적응증(適應證) 확장에 관한 연구(硏究) - 보중익기탕(補中益氣湯)을 예(例)로 들어 -)

  • Hong, Jin-Woo;Lee, Myeong-Ryeol;Lee, Byung-Wook;Baek, Jin-Ung
    • Journal of Korean Medical classics
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    • v.24 no.3
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    • pp.27-47
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    • 2011
  • Donguisusebowon(東醫壽世保元) doesn't have pretty large quantity of contents, so indications of Four-Constitution Medicine formulas on that medical book are small. Therefore, indications of Four-Constitution Medicine formula need to be extended for broader clinical use of Four-Constitution Medicine. There would be some methods to do that, and we could review the literatures that Four-Constitution Medicine formulas are based on. We reviewed Bojungyikgi-tang on "Dongeuibogam(東醫寶鑑)", and we found that if the Four-Constitution Medicine formula is based on Sanghan formula(傷寒方) or non-classical formula(後世方), it is worth adding more indications of base formulas to those of Four-Constitution Medicine formula. For exmaple, Indications of Bojungyikgi-tang for So-Eum type could be extended by indications of non-classical formula(後世方) Bojungyikgi-tang and modified formula(加減方) Bojungyikgi-tang on Dongeuibogam, We supposed 23 indications of non-classical formula(後世方) Bojungyikgi-tang, and 20 indications of modified formula(加減方) Bojungyikgi-tang as possible indications of Bojungyikgi-tang for So-Eum type.

A Study on the GIS Feature and Attribute Coding Scheme (GIS 지형지물 및 속성부호 표준화에 관한 연구)

  • Song, Hyun-Seung;Lee, Byung-Kil;Park, Seong-Bok;Lee, Sang-Zee
    • Journal of Korean Society for Geospatial Information Science
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    • v.3 no.2 s.6
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    • pp.63-74
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    • 1995
  • The most important thing for the national GIS development is considered to be the standardization, especially the development of the standard coding scheme for the GIS features and attributes. The comparative study on those of the several international transfer standard is, therefore, very meaningful. In this paper we analyzed the features and attributes coding catalogue for the three different exchange standards; SDTS, DIGEST and SP-57. And also the new coding scheme is proposed as the unified standard frame to be used for all the GIS related application and the digital product.

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