• Title/Summary/Keyword: Pull-through

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The research regarding the self concept of part dental hygienes students (일부 치위생과 학생의 자아개념에 관한 연구)

  • Jung, Eun-Kyung
    • Journal of Korean society of Dental Hygiene
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    • v.6 no.3
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    • pp.219-228
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    • 2006
  • The research which it sees against the self concept of part dental hygienes students from the hazard which it examines dental hygienes which is located on Kyoung-Buk and students 318 people in the object un-signature it enforced a research with the entry method which it got a same result. 1. From general characteristics of part hygiene students "the employment went well from the motive which selects hygiene" and it appeared most highly. The employment will go well and the social advance will do and ease when seeing specially with characteristics of college, it has an corresponding with the fact that is a possibility of employment.. 2. The average score against the self concept of part hygiene students "me it is an existence which is isolated from this world and nothing to do with the others". It appeared most highly with 3.52. The negation self concept appeared more highly affirmative self concept than. 3. To self concept and grade, religion, health condition, hygiene selection motive, subject record and native high school of part hygiene students the difference which considers statistically did not appear(p>0.05). However it tries to observe the self concept which it follows subject satisfactory degree, it is very unsatisfactorily(3.37) with it is unsatisfactorily(3.16) gaps it was not visible the difference which considers statistically, it is very satisfied(3.37) with the difference which considers statistically it was visible(p<0.05). Students the affirmative reaction is correct phenomenon in order to establish a specialty intuition. 4. When self concept and record and the subject satisfaction sees a interrelation for, Between self concept subject satisfaction is appeare big affirmative interrelation(r=0.331) and the subject record and subject satisfaction just interrelation appeared as well(r=0.282) all they considered statistically and appeared.(p=0.000) but to self concept and subject record for the interrelation did not appear. Negation self concept of part hygiene students appears more strongly than affirmative one, And studying for self concept of the students, it leads through the program which is the possibility to pull affirmatively is demanded.

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The PPLA Motif of Glycogen Synthase Kinase 3β Is Required for Interaction with Fe65

  • Lee, Eun Jeoung;Hyun, Sunghee;Chun, Jaesun;Shin, Sung Hwa;Lee, Kyung Eun;Yeon, Kwang Hum;Park, Tae Yoon;Kang, Sang Sun
    • Molecules and Cells
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    • v.26 no.1
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    • pp.100-105
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    • 2008
  • Glycogen synthase kinase $3{\beta}$ (GSK $3{\beta}$) is a serine/threonine kinase that phosphorylates substrates such as ${\beta}$-catenin and is involved in a variety of biological processes, including embryonic development, metabolism, tumorigenesis, and cell death. Here, we present evidence that human GSK $3{\beta}$ is associated with Fe65, which has the characteristics of an adaptor protein, possessing a WW domain, and two phosphotyrosine interaction domains, PID1 and PID2. The GSK $3{\beta}$ catalytic domain also contains a putative WW domain binding motif ($^{371}PPLA^{374}$), and we observed, using a pull down approach and co-immunoprecipitation, that it interacts physically with Fe65 via this motif. In addition, we detected co-localization of GSK $3{\beta}$ and Fe65 by confocal microscopy, and this co-localization was disrupted by mutation of the putative WW domain binding motif of GSK $3{\beta}$. Finally, in transient transfection assays interaction of GSK $3{\beta}$ (wt) with Fe65 induced substantial cell apoptosis, whereas interaction with the GSK $3{\beta}$ AALA mutant ($^{371}AALA^{374}$) did not, and we noted that phosphorylation of the Tyr 216 residue of the GSK $3{\beta}$ AALA mutant was significantly reduced compared to that of GSK $3{\beta}$ wild type. Thus, our observations indicate that GSK $3{\beta}$ binds to Fe65 through its $^{371}PPLA^{374}$ motif and that this interaction regulates apoptosis and phosphorylation of Tyr 216 of GSK $3{\beta}$.

Development of 3D Woven Preform π-beam based on T-beam Made of Laminated Composites (적층복합재료 T-빔 기반의 3차원 직조 프리폼 π-빔 개발)

  • Park, Geon-Tae;Lee, Dong-Woo;Byun, Joon-hyung;Song, Jung-il
    • Composites Research
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    • v.33 no.3
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    • pp.115-124
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    • 2020
  • Laminate composites, especially Carbon fiber-reinforced composites are wide used in various industry such as aerospace and automotive industry due to their high specific strength and specific stiffness. However, the laminate composites has a big disadvantage that delamination occurs because the arrangement of the fibers is all arranged in the in-plane direction, which limits the field of application of the laminate composites. In this study, we first developed a laminate composites T-beam in which π-beam and flat plate were combined and optimized the design parameters through structural analysis and mechanical tests. Afterwards, 3D weave preform T-beam was developed by applying the same design parameters of laminate composites T-beams, and improved mechanical strength was achieved compared to laminated structures. These findings are expected to be applicable to existing laminated composite structures that require increased strength.

A Study on the High Frequency Resonant Inverter of Class D SEPP type using LS-ZVS-LSTC (LS-ZVS-LSTC를 이용한 D급 SEPP형 고주파 공진 인버터에 관한 연구)

  • Park, Dong-Han;Choi, Byeong-Joo;Kim, Jong-Hae
    • Journal of IKEEE
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    • v.24 no.1
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    • pp.260-268
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    • 2020
  • This paper presents the high frequency resonant inverter of class D SEPP(Single-Ended Push Pull) type using LS-ZVS-LSTC, which can reduce the switching losses during the turn-on and turn-off switching time. The analysis of high frequency resonant inverter using LS-ZVS-LSTC(Low-loss Turn-off Snubber Capacitor) proposed in this paper is described in general by adopting the normalized parameters. The operating characteristics of the proposed high frequency resonant inverter were also evaluated by using the control parameters such as the normalized control frequency(μ), the normalized load time constant(τ), the coupling factor(κ) and so on. Based on the characteristic values through the characteristics of evaluation, an example of the design method of the 1.8[kW] class D SEPP type high frequency inverter is suggested, and the validity of the theoretical analysis is verified using the experimental data.

A Case study of Knowledge & Information Contents applied Gamification and Alternate Reality Game concepts (게이미피케이션과 대체현실게임 개념을 적용한 지식정보콘텐츠 사례 연구)

  • Shin, Dong-Hee;Kim, Hee-Kyung
    • Journal of Digital Contents Society
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    • v.14 no.2
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    • pp.151-159
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    • 2013
  • Recently, gamification has garnered high attention in various fields outside the traditional game world through the adoption of game techniques. The introduction of gamification creates an alternate reality game. It appears virtually the same as other normal games, but is able to pull down the boundary between reality and imagination. At first, this was utilized by the entertainment industry for movies, advertisements, and drama publicity. We can see examples of gamification extending into the knowledge and information contents field. The purpose of knowledge and information contents is to pursue meaning and utility rather than fun, though the introduction of game methods remains interesting. In-depth examination of the conception of an alternate reality game via gamification will lead to the understanding of progression and quality of alternate reality games in the context of knowledge and information contents. As a result, we can effectively understand not only the immediate uses but also be able to measure the potential for utilization of gamification for various fields.

Two Kinesins from Arabidopsis, KatB and KatC, Have a Second Microtubule-binding Site in the Tail Domain

  • Jiang, Shiling;Li, Ming;Xu, Tao;Ren, Dongtao;Liu, Guoqin
    • BMB Reports
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    • v.40 no.1
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    • pp.44-52
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    • 2007
  • Kinesins, as a kind of microtubule-based motor proteins, have a conserved microtubule-binding site in their motor domain. Here we report that two homologous kinesins in Arabidopsis thaliana, KatB and KatC, contain a second microtubule-binding site in their tail domains. The prokaryotic-expressed N-terminal tail domain of the KatC heavy chain can bind to microtubules in an ATP-insensitive manner. To identify the precise region responsible for the binding, a serious of truncated KatC cDNAs encoding KatC N-terminal regions in different lengths, KatC1-128, KatC1-86, KatC1-73 and KatC1-63, fused to Histidine-tags, were expressed in E. coli and affinity-purified. Microtubule cosedimentation assays show that the site at amino acid residues 74-86 in KatC is important for microtubule-binding. By similarity, we obtained three different lengths of KatB N-terminal regions, KatB1-384, KatB1-77, and KatB1-63, and analyzed their microtubule-binding ability. Cosedimentation assays indicate that the KatB tail domain can also bind to microtubules at the same site as and in a similar manner to KatC. Fluorescence microscopic observations show that the microtubule-binding site at the tail domain of KatB or KatC can induce microtubules bundling only when the stalk domain is present. Through pull-down assays, we show that KatB1-385 and KatC1-394 are able to interact specifically with themselves and with each other in vitro. These findings are significant for identifying a previously uncharacterized microtubule-binding site in the two kinesin proteins, KatB and KatC, and the functional relations between them.

Performance of fly ash stabilized clay reinforced with human hair fiber

  • Rekha, L. Abi;Keerthana, B.;Ameerlal, H.
    • Geomechanics and Engineering
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    • v.10 no.5
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    • pp.677-687
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    • 2016
  • Industrialization and urbanization are the two phenomena that are going relentless all over the world. The consequence of this economic success has been a massive increase in waste on one hand and increasing demand for suitable sites for construction on the other. Owing to the surplus raw materials and energy requirement needed for manufacturing synthetic fibers, applications of waste fibers for reinforcing soils evidenced to offer economic and environmental benefits. The main objective of the proposed work is to explore the possibilities of improving the strength of soil using fly ash waste as an admixture and Human Hair Fiber (HHF) as reinforcement such that they can be used for construction of embankments and land reclamation projects. The effect of fiber content on soil - fly ash mixture was observed through a series of laboratory tests such as compaction tests, CBR and unconfined compression tests. From the stress - strain curves, it was observed that the UCC strength for the optimised soil - flyash mixture reinforced with 0.75% human hair fibers is nearly 2.85 times higher than that of the untreated soil. Further, it has been noticed that there is about 7.73 times increase in CBR for the reinforced soil compared to untreated soil. This drastic increase in strength may be due to the fact that HHF offer more pull-out resistance which makes the fibers act like a bridge to prevent further cracking and thereby it improves the toughness which in turn prevent the brittle failure of soil-flyash specimen. Hence, the test results reveal that the inclusion of randomly distributed HHF in soil significantly improves the engineering properties of soil and can be effectively utilized in pavements. SEM analysis explained the change of microstructures and the formation of hydration products that offered increase in strength and it was found to be in accordance with strength tests.

A Study on Technology Commercialization in the 4th Industrial Revolution (제4차 산업혁명의 기술 상용화에 관한 연구)

  • Sung, Tae kyung
    • Journal of Service Research and Studies
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    • v.9 no.1
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    • pp.73-86
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    • 2019
  • This study discusses the 4th industrial revolution and technology commercialization (TC), identifies success factor (SFs) for TC from the literature review, and empirically tests these factors through questionnaires to executives in the 4th industrial revolution industries. Literature review identifies 11 SFs and they are communication, management support, incentives for TC, common goals, understanding business, awareness of TC, cooperation among partners, government support, concreteness of technology, demand-pull technology, and experience of TC. Questionnaires were administered to CEOs and CIOs in 202 companies in the 4th industrial revolution industries and final response rate was 64.4% (260 out of 404) that is considered to be high. Respondents rate cooperation among partners as the most important, followed by management support, communication, common goals, and incentives for TC. To successfully pursue technology commercialization projects in the 4th industrial revolution industries, the attention should be focused on SFs that are evaluated as very important.

Prohibition Clauses of Business of Money Changing on the Game Industry Promotion Act of 2007 (게임산업진흥법상 환전업금지 조항의 의의와 해석)

  • Hwang, Seung-Heum
    • Journal of Korea Game Society
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    • v.7 no.2
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    • pp.61-72
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    • 2007
  • Prohibition Clauses of Business of Money Changing(${\S}32(1)7$) on the Game Industry Promotion Act of 2007 was introduced for the purpose of preventing game from becoming gambling. By making the independent requisite of constituting a crime that there was no criminal punishment former times, it is possible actively to deal with mixing of game and gambling. Prohibition Clauses of Business of Money Changing prevent the material or formless results that are obtained on the use of game from making a business of money change, intermediation of money change, or re-purchase of it. The material or formless results mean points, prizes, game moneys, or game data that is obtained on the abnormal use of a game. Most real money trade of a game item will be pull into the application of Prohibition Clauses of Business of Money Changing on the interpretation of it. Therefore this clauses have a tremendous effect upon the business of sweated workshops and intermediation web sites of game items. None the less Prohibition Clauses of Business of Money Changing will have positive influence to the future of game industry through the separation of game and gambling.

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Fabrication, Microstructure and Adhesive Properties of BCuP-5 Filler Metal/Ag Plate Composite by using Plasma Spray Process (Plasma spray 공정을 이용한 BCuP-5 filler 금속/Ag 기판 복합 소재의 제조, 미세조직 및 접합 특성)

  • Youn, Seong-June;Kim, Young-Kyun;Park, Jae-Sung;Park, Joo-Hyun;Lee, Kee-Ahn
    • Journal of Powder Materials
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    • v.27 no.4
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    • pp.333-338
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    • 2020
  • In this study, we fabricate a thin- and dense-BCuP-5 coating layer, one of the switching device multilayers, through a plasma spray process. In addition, the microstructure and macroscopic properties of the coating layer, such as hardness and bond strength, are investigated. Both the initial powder feedstock and plasma-sprayed BCuP-5 coating layer show the main Cu phase, Cu-Ag-Cu3P ternary phases, and Ag phase. This means that microstructural degradation does not occur during plasma spraying. The Vickers hardness of the coating layer was measured as 117.0 HV, indicating that the fine distribution of the three phases enables the excellent mechanical properties of the plasma-sprayed BCuP-5 coating layer. The pull-off strength of the plasma-sprayed BCuP-5 coating layer is measured as 16.5 kg/㎠. Based on the above findings, the applicability of plasma spray for the fabrication process of low-cost multi-layered electronic contact materials is discussed and suggested.