• 제목/요약/키워드: Final

검색결과 18,073건 처리시간 0.049초

A study on the mechanical properties of TiN/DLC based functionally graded coatings

  • Song, Young-Sik;Kim, J.
    • Proceedings of the Korean Institute of Surface Engineering Conference
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    • 한국표면공학회 2003년도 추계학술발표회초록집
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    • pp.59-59
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    • 2003
  • In recent, various functional coatings on artificial tooth implants have been conducted to enhance the bonding strength between implants and bones. Despite of these efforts, some previous reports argued that an adhesion strength between titanium implant and the final coatings like hydroxyapatite(HA) is weaker than the strength between coating and bone. In order to increase the adhesion force between the final coating and implant surface, TiN/DLC based functionally graded coating, which has higher mechanical strength than the titanium implant, was applied as a middle layer between titanium implant and final coating. Particularly we finally coated a biocompatible hydroxyapatite film on the DLC layer and examined the mechanical properties. As a result, TiN/DLC based functionally graded coating showed the higher adhesion strength compared with hydroxyapatite single layer coating on the titanium implant.

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A comparison study on color correction for high-definition video in digital post-production (디지털 후반작업에서 고화질 영상표현을 위한 색보정(color correction) 비교연구)

  • Oh, Moon Seock;Won, Jong Wook;Lee, Yun Sang
    • Journal of Korea Society of Digital Industry and Information Management
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    • 제9권4호
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    • pp.167-175
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    • 2013
  • This study is the process of making high-definition TV broadcast color correction affects the end result comparison is focus on implement through study. In the production process and the impact on the color Correction in the video as an study for UHD, 4K, 6K video production workflow improvement of an effective program in the present and time and cost in the post production process, color correction for the final video through the production and overcome the failure of further in-efficient color correction study will help you to solve the problem. This study is the color changes over the course of the final video to see how much influence color correction of post-production. Color correction using a program of courses in Visual quality, regularly presented the possibility to retain and make on high definition video production post-production process for color correction method is utilized as the basis of study.

Synthesis of Filled-up Pothole Surface by Automatic Pothole Repair Vehicle (자동 도로 수리기에 의해 수리된 도로표면의 예측 표현)

  • 권원태
    • Transactions of the Korean Society of Automotive Engineers
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    • 제1권2호
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    • pp.134-143
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    • 1993
  • The trajectory planning for the manipulator installed on "the automatic pothole repair vehicle" is discussed and the final surface of the patched pot hole is simulated in this work. The relationship between the accumulation data of the mixture with and without the movement of the manipulator is identified to utilize the latter data for the calculation of the former one. Based on this relationship, the method to calculate the accumulation of the mixture when the manipulator changes the speed and the direction is also introduced. The trajectory is determined to make the final surface smooth under the condition that the pothole is cut to hexahedron before patching and only the spacing and the shifting of the manipulator is controllable. Final surface is simulated by the computer to prove the adequacy of the determined trajectory.

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Simple and effective neural coreference resolution for Korean language

  • Park, Cheoneum;Lim, Joonho;Ryu, Jihee;Kim, Hyunki;Lee, Changki
    • ETRI Journal
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    • 제43권6호
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    • pp.1038-1048
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    • 2021
  • We propose an end-to-end neural coreference resolution for the Korean language that uses an attention mechanism to point to the same entity. Because Korean is a head-final language, we focused on a method that uses a pointer network based on the head. The key idea is to consider all nouns in the document as candidates based on the head-final characteristics of the Korean language and learn distributions over the referenced entity positions for each noun. Given the recent success of applications using bidirectional encoder representation from transformer (BERT) in natural language-processing tasks, we employed BERT in the proposed model to create word representations based on contextual information. The experimental results indicated that the proposed model achieved state-of-the-art performance in Korean language coreference resolution.

Closure durations of Korean stops at three positions

  • Yungdo Yun
    • Phonetics and Speech Sciences
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    • 제14권4호
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    • pp.11-17
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    • 2022
  • This study investigates closure durations of Korean stops in terms of laryngeal contrasts, places of articulation, and three positions within words. Twenty-two Korean speakers produced the nonsense words containing Korean stops found in word-initial and word-final positions and between vowels. The statistical results showed that the closure durations differed significantly by laryngeal contrast and place of articulation. In addition, the differences by position within words were marginally significant. The closure durations were in the order of lenis < aspirated < fortis stops by laryngeal contrast, velar < alveolar < bilabial stops by place of articulation, and word-final < word-initial < between vowels by positions within words. The laryngeal contrasts were neutralized in word-final position as per coda neutralization in Korean phonology. This study shows that closure durations should be considered a valuable phonetic cue to identify stops on par with voice onset time and f0.

An Investigation into the Correlation between a Country's Total Olympic Medal Count, GDP, and Freedom Index through History

  • Snowberger, Aaron Daniel;Lee, Choong Ho
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 한국정보통신학회 2021년도 추계학술대회
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    • pp.495-498
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    • 2021
  • In 2021, Tokyo held the delayed 2020 Olympics in the ongoing COVID-19 pandemic. As with any Olympics, the final medal count was of particular interest. Since 2004, South Korea has consistently ranked in the top ten most successful countries for four straight Summer Olympics. However, in 2021, it fell short of a top ten finish for the first time since 2004. There may be many factors that affect the final medal count in any Olympics, and this study compares and looks for correlations between some of these factors including final medal count, GDP, population, size of Olympic contingent, and Freedom Index. The study pays particular attention to South Korea and other countries which have seen a dramatic change in Freedom Index score since 1972, when the index was first published.

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Implementation of the Revised Common Rule in the United States and its implications for Human Research in Korea (미국 Common Rule의 주요 개정 내용과 시사점)

  • Choe, Byung In
    • The Journal of KAIRB
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    • 제2권1호
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    • pp.1-5
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    • 2020
  • The U.S. Department of Health and Human Services and fifteen other Federal Departments and Agencies have issued final revisions to the Federal Policy for the Protection of Human Subjects (the Common Rule, 45 CFR 46, Subpart A). The Common Rule was initially promulgated in 1991 and amended in 2005. The Final Rule to update the current regulations was published in the Federal Register on 19 January 2017. The final compliance date of the revised Common Rule including the cooperative research requirement is effective on 20 January 2020 after twice to delay. The revised Common Rule aims to make more effective conduct of minimal risk research reflecting modern research activities and recognize evolving technologies, including mobile technologies, internet, and the growth in computing power. The revisions to the Common Rule were based on a variety of sources of public, stakeholder, and expert comments. The author summarized the key changes and the implications to Korean human research regulations.

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Buddhism and Well-Being -From Buddhism for the Enlightenment to Buddhism for Happiness. (웰빙으로서의 불교 -깨달음의 불교에서 행복의 불교로)

  • Jo, Seong-Taek
    • Journal of the Daesoon Academy of Sciences
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    • 제19권
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    • pp.145-163
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    • 2005
  • What is Buddhism for? Is the enlightenment the only valid goal of the Buddhist practice? In answering to such questions, this article attempts to challenge the traditional Buddhist notion on the enlightenment, which has been believed to be the utmost and unquestionable, the final goal of Buddhist practice. This article argues that the enlightenment as the final goal of Buddhist practice resulted from religious atmosphere of the ancient India, where the society was bifurcated with the lay and monks. Moreover, nirvana, the final enlightenment with no-more-rebirth, was not the goal of all the Buddhists, but the goal of a few, religious elites. In modern society, where the role of lay people becomes more and more important the Buddhist goal for the enlightenment needs to be reevaluated and to change, from the enlightenment to happiness.

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Factors Affecting on Final Adult Height and Total Height Gain in Children with Idiopathic and Organic Growth Hormone Deficiency after Growth Hormone Treatment (특발성과 기질성 성장호르몬 결핍증 환아에서 성장호르몬 치료 후 최종 성인신장과 신장 증가에 영향을 미치는 인자)

  • Choi, Im Jeong;Hwang, Jin Soon;Shin, Choong Ho;Yang, Sei Won
    • Clinical and Experimental Pediatrics
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    • 제46권8호
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    • pp.803-810
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    • 2003
  • Purpose : The purpose of this study was to evaluate the factors affecting the final adult height and total height gain in idiopathic and organic growth hormone deficient(GHD) children after growth hormone(GH) treatment. Methods : Thirteen patients with idiopathic GHD and 22 patients with organic GHD who had been treated with GH and attained adult final height were included in this study. Factors which could affect the final adult height(FAH) and total height gain, were evaluated. Results : Height SDS(standard deviation score) at initial GH treatment in idiopathic GHD was significantly shorter than that in organic GHD($-4.13{\pm}1.28$ vs $-1.66{\pm}1.06$, P<0.001). Growth velocity during the first year of GH treatment was $9.69{\pm}3.19cm$(idiopathic GHD) and $7.87{\pm}3.65cm$(organic GHD). Height(SDS) at puberty in organic GHD was significantly greater than in idiopathic GHD ($-0.55{\pm}1.25$ vs $-2.28{\pm}0.95$, P<0.001). Final adult height(SDS) was significantly greater in organic GHD than in idiopathic GHD($0.22{\pm}1.06$ vs $-1.44{\pm}0.84$, P<0.001). In idiopathic GHD, total height gain (SDS) was most significantly correlated with midparental height minus initial height(MPH-IH)(SDS) (r=0.886, P<0.001). Total height gain(SDS) was more significantly correlated with MPH-IH(SDS) and prepubertal height gain(SDS) in idiopathic GHD(r=0.640, P=0.01, r=0.801, P<0.001). Conclusion : Final adult height was greater in organic GHD than in idiopathic GHD patients. While total height gain(SDS) was more pronounced in children with lower initial height compared to MPH, absolute final adult height was influenced by height at puberty. To improve the final adult height in children with GHD, height at onset of puberty must be increased by early diagnosis and continuous treatment with optimal doses of GH. There results should be evaluated with more patients.

Comparison of Buttock Pressure and Pelvic Tilting Angle During Typing in Subjects With and Without Unilateral Low Back Pain

  • Hwang, Ui-Jae;Kim, Si-Hyun;Choi, Houng-Sik;Kwon, Oh-Yun
    • Physical Therapy Korea
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    • 제21권1호
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    • pp.37-46
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    • 2014
  • Asymmetric sitting posture may cause asymmetric buttock pressure and unilateral low back pain (LBP). The purpose of this study was to compare the differences of buttock pressure between both sides, and pelvic angle (sagittal and coronal planes) during typing in a sitting position on a pressure mat (Baltube) in individuals with and without unilateral LBP. Ten subjects with unilateral LBP and ten subjects without unilateral LBP were recruited for this study. Buttock pressure was measured using a pressure mat and pelvic angles were measured using a palpation meter. The subjects performed typing in a sitting posture for 30 minutes. Pressure data were collected and averaged at initial term (from start to first minutes) and final term (last minutes of 30 minutes). Angles of pelvic tilting were measured after 30 minutes typing. Pressure asymmetry values (difference in pressure between both sides) were calculated at the initial and final terms. A two-way analysis of variance was used to compare the differences between the initial and final pressure asymmetry values in subjects with and without unilateral LBP. An independent t-test was applied to compare the pelvic tilt angles between the two groups. To compare the change of pressure from the initial term to the final term between the symptomatic and asymptomatic sides in the unilateral LBP group, a paired t-test was applied. In the unilateral LBP group, the pressure asymmetric value at the final term was significantly greater than that of the initial term (p<.05). The angle of pelvic tilting in coronal plane was significantly greater in the unilateral back pain group compared to the without unilateral LBP group (p<.05), however, there was no significant difference in the angle of pelvic tilting in the sagittal plane between the two groups (p>.05). In the unilateral LBP group, the change of pressure from the initial term to the final term was significantly less in the symptomatic side (-6.90 mmHg) than the asymptomatic side (5.10 mmHg). This asymmetric sitting posture may contribute to unilateral LBP in the sitting position. Further studies are needed to determine if asymmetric weight bearing in sitting causes unilateral LBP or if unilateral back pain causes asymmetric weight bearing, and if the correction of asymmetric weight bearing in sitting can reduce unilateral LBP.