• Title/Summary/Keyword: repeat unit

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A Analysis of the Relevance between Home Economics and Other Subjects in the Middle School (중학교 가정교과와 다른교과의 교육내용 관련성 분석)

  • 정정희;이송자;유태명
    • Journal of Korean Home Economics Education Association
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    • v.10 no.1
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    • pp.77-93
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    • 1998
  • The purpose of this study is two-fold. One is to provide the teachers of Home Economics with the basic reference data of the relevance between Home Economics and other subjects taught in the middle schools for the purpose of bringing out more efficient classroom teaching. The other is to help the teachers, the textbook writers, and the curriculum reformers improve the curricula of the middle school on the basis of this research. The conclusions drawn from this study are as follows: 1) The units of Human Development and Family Relationship should be taught with reference to Korean Language, Ethics, and Music. 2) The unit of Adolescence Development is dealt with in Physical Education and in Ethics as well, which seems to indicate that there was no interdisciplinary consideration and cooperation before/when the curricula were made. 3) The unit of Nutrition which appears in the first grade in Home Economics has a close relationship with the unit of Morphology and Physiology of Animals which appears in the second grade in Natural Science. It is thought that the interdisciplinary themes ought to be organized cooperatively among subjects for efficiency of study. 4) Since the unit of Clothing is not dealt with in the other subjects, ti can be developed in Home Economics on its own. 5) As the unit of Housing is closely related to Technology, it should be taught on the basis of Technology. 6) The textbooks of all subjects should be written based on the interdisciplinary research and cooperation. They should be organized in order not to overlap or repeat the same topic in the same level if it is not necessary.

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TACT Modification Methods for Responding to Delay in Winter Season (동절기 공정지연 대응을 위한 TACT 공정 조정방안)

  • Kim, Dae-Kyu;Jeong, Yong-Joon;Lee, Jun-Ho;Moon, Hyun-Seok;Koo, Kyo-Jin;Hyun, Chang-Taek
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2011.11a
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    • pp.125-126
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    • 2011
  • Construction projects are being more complicated in proportion to the economic development. Process management is a critical issue in the construction that decides success of a project. Especially, a TACT method which divides and manages resources to repeat each activity is more important. Although becoming an issue dealing with the delay at winter season, it is not property developed. This paper suggests 'activity priority method' and 'TACT unit method' through case study. We validate necessity and efficiency of the TACT method through simulations and a survey. We expect cost reduction by decreasing unnecessary spending.

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Suggested Design for Textiles and Fashion Cultural Products Applied with Formative Beauty in Daenggi (댕기의 조형적 형태미를 활용한 텍스타일 디자인 및 패션문화상품 디자인 제안)

  • Kim, Sun-Young
    • Journal of the Korean Home Economics Association
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    • v.50 no.3
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    • pp.15-24
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    • 2012
  • This study examined the formative beauty found in daenggi, which is a traditional feminine hair ornament. For research methods, both Adobe's Illustrator CS3 and Photoshop CS3 were used as designing tools and literatures on daenggi. Sixteen pieces of work were prepared by applying rotations of up, down, right, and left, repeat, symmetry, and overlap from the basic motif. For the scarf design, the rotational or diagonally symmetrical arrangement was repeated in order to maximize the outstanding features for each textile expression or was designed freely using one repetition unit (a whole scarf). Diverse images were expressed for the pendant design via usage of a basic motif and its variation. In addition, this work would suggest another alternative for apparel application by using the textile design for a simple one-piece dress.

Crystal Structure of TTC0263, a Thermophilic TPR Protein from Thermus thermophilus HB27

  • Lim, Hyosun;Kim, Kyunggon;Han, Dohyun;Oh, Jongkil;Kim, Youngsoo
    • Molecules and Cells
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    • v.24 no.1
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    • pp.27-36
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    • 2007
  • The hypothetical protein TTC0263 of Thermus thermophilus HB27 is a thermophilic tetratricopeptide repeat (TPR)-containing protein. In the present study, the TPR region (residues 26-230) was resolved at $2.5{\AA}$ with R-factors of $R/R_{free}$ = 23.6%/28.6% $R/R_{free}=23.6%/28.6%$. TTC0263 consists of 11 helices that form five TPR units. Uniquely, it contains one atypical "extended" TPR (eTPR) unit. This comprises extended helical residues near the loop region of TTC0263, such that the helical length of eTPR is longer than that of the canonical TPR sequence. In addition, the hybrid TPR domain of TTC0263 possesses oligomer-forming characteristics. TPR domains are generally involved in forming multi-subunit complexes by interacting with each other or with other subunit proteins. The dynamic structure of TTC0263 described here goes some way to explaining how TPR domains mediate the formation of multi-subunit complexes.

A Note on Patterns in the Elementary Mathematics Education (초등수학교육에서의 패턴에 관한 소고)

  • Kang Sin po
    • Journal of Elementary Mathematics Education in Korea
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    • v.5 no.1
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    • pp.1-18
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    • 2001
  • This note includes that repeating patterns, knowledge of odd and even numbers, and the patterns in processing and learning addition facts. The potential to mathematical development of repeating patterns is Idly realized if the unit of repeat is recognized. Through the partition of numbers greater then 9 into two equal sets and into sets of 2s, It is necessary the teaching of children's knowledge of odd and even numbers. Being taught derivation strategies through patterns in numbers, we suggest that the teaching seguence to accelerate development of children's learning of additions facts.

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A Study on the Possibility of Model Development from Traditional Han-ok to Urban Clustering Housing Model in Korean Context (전통한옥의 도시집합주거로 발전 가능성 연구)

  • Shon, Seung-Kwang
    • Journal of the Korean housing association
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    • v.19 no.3
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    • pp.71-81
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    • 2008
  • A traditional Korean housing is a typical type which is contained life style, spatial organization and scape element of people who lived in Korea. In the hanok, people want to be live not only in human environment and traditional culture, but also modem urban housing as a high density. This article deals as follows: First, Hanok as urban housing would be composed in a housing lot, linear type layout, devide building, and cluster type. Second, Housing unit and configuration of Multi family housing can be used single story, second story, second story + single story, multi story and Hanok roofing. Thirds, structure of the building are traditional wooden, combined one of steel and wood or concrete and wood, and the building system in exterior and interior can be seperated into another system. Forth, Image of multi story Hanok A last, consistency of Hanok is not a repeat of an origin but application and creative aptitude of the origin, and multi family housing application of Hanok can be a trial creative.

Conjugated Copolymers by Horner-Emmons Polycondensation and Electroluminescence Characteristics

  • Park, Lee-Soon;Jeong, Seung-Won;Kim, Sang-Dae;Seo, Hyeon-Jin
    • Journal of Information Display
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    • v.2 no.2
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    • pp.45-51
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    • 2001
  • Four types of conjugated polymers, poly(MEHPV-PV), poly(MEHPV-BPV), poly(MEHPV-AV) and poly(PZV-AV) were synthesized by Homer-Emmons reaction using potassium tert-butoxide. The Homer-Emmons reaction gave electroluminescent(EL) copolymers in good yield. Of the EL copolymers synthesized, poly(PZV-AV) containing phenothiazinylene vinylene and anthrylene vinylene as repeat unit exhibited red color in the light emitting diode(LED) which was very close to the NTSC standard red. Besides, double layer LED made with $Alq_3$ electron transport layer exhibited both enhanced emission intensity and efficiency compared to the single layer LED.

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Development of Web-based Management System for Greenhouse Teleoperation (웹을 통한 온실 원격 관리 시스템의 개발)

  • Sim, Ju-Hyeon;Baek, Un-Jae;Park, Ju-Hyeon;Lee, Seok-Gyu
    • Proceedings of the KIEE Conference
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    • 2003.11c
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    • pp.750-753
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    • 2003
  • In this paper, we have developed the web-based management system for greenhouse teleoperation. The remote control system consists of database, web-server, controller in greenhouse, and clients. The database in the server stores user informations and greenhouse conditions, and is used to manage user login and conditioning data. The management system developed by using Java applet, which is a client program for effective and easy management of greenhouse, monitors the greenhouse in real time. Master and driver boards installed in greenhouse control unit. Database on flowering to collect and analyze data exchanges data with the server. The greenhouse can be managed effectively by timer routine, repeat control within setting time, and algorithm of setting points. Also, the greenhouse conditions can be controlled by manual or remote controller (PC) through web browser in internet. Furthermore, all of the control devices of the greenhouse are managed by remote control using PC and checked via camera installed in greenhouse.

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MA : Multiple Acknowledgement Mechanism for UWSN (UnderWater Sensor Network)

  • Shin, Soo-Young;Lee, Seung-Joo;Park, Soo-Hyun
    • Journal of Korea Multimedia Society
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    • v.12 no.12
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    • pp.1769-1777
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    • 2009
  • With the advent of the ubiquitous technology age, the progress of network technology has enabled a robust sensor communication, not just in cities, but also in poor surroundings such as deserts, polar regions, or underwater environments. In this paper, we propose a Multiple Acknowledgement (MA) technique to replace the conventional Automatic Repeat request (ARQ) technique. The MA mechanism is to send an Ack to many receivers simultaneously. The CH (master, coordinator) of the unit cluster broadcasts a Beacon frame where Ack information of the previously transmitted data is included. This technique can reduce the number of transmissions and overhead significantly. The proposed technique is a scheme improving the efficiency of an underwater sensor network where the uplink data transmission is the mainstream. The Performance of the ARQ, Block Ack, Pervasive Block Ack and the proposed method were compared with one another and analyzed. The proposed method showed significant performance improvement as compared with the ARQ, BA, and PBA in its channel efficiency.

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Free-Standing Langmuir-Blodgett Films of Maleic Acid-Vinyl Ether Copolymers across 1 μm Pores

  • 이범종;최기선;권영수
    • Bulletin of the Korean Chemical Society
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    • v.16 no.12
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    • pp.1167-1172
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    • 1995
  • A coverage of about 1 μm-sized pores of a membrane filter by four monolayers of maleic acids copolymers and poly(allylamine) (PAA) was attained by Langmuir-Blodgett (LB) technique through a covalent cross-linking followed a polyion complexation at the air-water interface. The copolymers were prepared to have side chains of hydrocarbon tail, carboxyl, and/or oligoether in the repeat unit. The surface pressure-area isotherms showed that the monolayers on an aqueous PAA have more expanded area than on pure water. The monolayers were transferable on a calcium fluoride substrate and a fluorocarbon membrane filter as Y deposition type, and the resulting LB films were characterized by FT-IR spectroscopy and scanning electron microscopy. A polymer network produced through interchain amide formation was confirmed in as-deposited films. The films were heat-treated in order to complete the cross-linking. SEM observation of the heat-treated film on a porous membrane filter showed that the four layer film was sufficiently stable to cover the filter pore of about 1 μm. Immersion of the film in water or in chloroform did not cause any change in its appearance on SEM and in FT-IR spectra.