• Title/Summary/Keyword: 포지티브

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A study on the characteristics of negative photoresist using inorganic a-$Se_{75}Ge_{25}$ thin film (무기질 a-$Se_{75}Ge_{25}$ 박막을 이용한 네가티브형 포토레지스트의 특성연구)

  • Chung, Hong-Bay;Huh, Hoon;Kim, Tae-Wan
    • Electrical & Electronic Materials
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    • v.1 no.4
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    • pp.295-302
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    • 1988
  • 본 연구에서는 미세패턴 형성을 위한 비정질 $Se_{75}Ge_{25}$박막의 네가티브형 포토레지스토에 대하여 고찰하였다. 습식현상공정을 통해 대비도가 포지티브형인 경우 1.4였고 네가티브형인 경우 2.9를 나타내어 네가티브형인 경우가 미세선폭 조절능력이 더 우수함을 알 수 있었다. 표면사진으로부터 약 1.mu.m정도의 미세패턴을 얻었음을 확인할 수 있었다.

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Minimum Chi-square estimation and the bootstrap (최소카이제곱추정과 붓스트랩)

  • 정한영;이기원;구자용
    • The Korean Journal of Applied Statistics
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    • v.7 no.2
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    • pp.269-277
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    • 1994
  • Bootstrap approximation is compared with ordinary asymptotic method in the context of minimum chi-square estimation through application in a real problem. Fixed interval search method is shown to be superior over a random interval search method or Newton-Raphson method. All the procedures are implemented by S-Plus functions.

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Synthesis and Characterization of New Positive Photosensitive Polyimide Having Photocleavable 4,5-Dimethoxy-2-nitrobenzyl (DMNB) Groups (감광성 DMNB 기를 함유한 새로운 포지형 감광성 폴리이미드의 합성 및 물성)

  • 최옥자;류윤미;정민국;이명훈
    • Polymer(Korea)
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    • v.26 no.6
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    • pp.701-709
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    • 2002
  • To synthesize a new positive photosensitive polyimide precursor, parts of carboxylic acid groups in poly (amic acid) were esterified with 4,5-dimethoxy-2-nitrobenzyl bromide in the presence of K$_2$CO$_3$/HMPA followed by the chemical imidization of residual carboxylic acid units. The chemical structure of resulting polymer was characterized by $^1$H-NMR, UV/vis and FT-IR spectroscopic methods, and its thermal properties were examined by DSC and TGA. Upon UV irradiation, 4,5-dimethoxy-2-nitrobenzyl moiety underwent the photodegradation. As a result, the polymer became soluble in alkaline developer due to the formation of carboxylic acid moiety, which was used to make a micron-sized positive pattern. Sensitivity curves were obtained from the gel fraction experiments with respect to the various 4,5-dimethoxy-2-nitrobenzyl ester contents. From those curves, the sensitivity was ranged iron 4000 to 6000 mJ/㎠, and the contrast was measured to be from 3.1 to 4.9.

A Policy Study of the Activation of the Busan Blockchain Regulation-Free Zone based on Company Survey (기업 인식조사 기반 부산 블록체인 규제자유특구 활성화 정책 연구)

  • Bae, Soohyun;Jeong, Seok Chan
    • The Journal of Bigdata
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    • v.5 no.1
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    • pp.65-75
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    • 2020
  • This study intends to propose a policy plan for the activation of the Busan Blockchain Regulation-Free Zone, which is selected by the government's comprehensive negative regulation policy. Unlike Europe and the United States, Korea is based on a positive regulation and aims at suppression, not activation. The Korean government proposed a transition to "comprehensive negative regulation" as a groundbreaking regulatory innovation policy to solve the problems of positive regulation. For this implementation plan, seven regulation-free zones were selected. Busan was selected as the Blockchain Regulation-Free Zone, and secured an opportunity to revitalize the stagnant regional economy based on the blockchain. This study is a policy study for the activation of the Busan Blockchain Regulation-Free Zone, and aimed to propose a method to create an industrial ecosystem with the discovery of a Busan-specific Blockchain service that can be commercialized in the Regulation-Free Zone.

A Study on the Effect of the Portrayal of Body Image of Women in Advertisement in Korea and Latin America (한국과 라틴 아메리카에서의 여성의 신체 이미지 묘사가 광고 효과에 미치는 영향에 관한 연구)

  • Gongora Astete, Francisca Paz;Kim, Boyeun
    • Journal of Digital Convergence
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    • v.16 no.7
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    • pp.369-379
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    • 2018
  • The current study started from the constant internal fight women usually have due to the portrayal of women in advertisement in different socio-cultural backgrounds, a comparison between Latin America and South Korea was held to find the different approaches. And also test the effects of an overwhelming movement that is looking to change history and change the perception of images of constructed beauty and unattainable physical standards called The Body Positivity Movement, using the examples of prominent brands like Dove and Victoria's Secret's advertisements and the AIDA model as the instrument. Male and female in their 30's from South Korea and Latin America have been interviewed to show the differences of opinions.

Helenkaminski's Positive Luxury Brand Product Planning for Sustainable Fashion (Helenkaminski의 지속가능 패션을 위한 포지티브 럭셔리 브랜드의 상품기획)

  • Soojin Lee;KeumHee Lee
    • Journal of Fashion Business
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    • v.28 no.2
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    • pp.92-108
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    • 2024
  • This study examines the measures and implementation strategies needed to develop sustainable design from an international perspective, using examples of sustainability practices and product planning from Helen Kaminski, a representative fashion brand of positive luxury. The research method includes a literature study on positive luxury, a case study on positive luxury brands, and an empirical study where the researcher participated in the development of Helen Kaminski's design. The study identifies the following measures needed to develop designs for sustainable products: First, the development of designs that increase circularity; Second, the use of certified materials and strict adherence to material usage; Third, the simplification of production methods or development of new technologies for this purpose; Fourth, ensuring that design development incorporate the traditions and unique handicraft techniques of the local community. The implementation strategies required for a sustainable product planning process are as follows. First, changes in the product planning stage and expansion of participating members are needed. Second, securing and conducting prior inspections of the supply chain for ethical sourcing is required. Third, prioritizing the use of eco-friendly materials and material development. Fourth, establishing a stage for selecting and evaluating objects that will become representative designs with sustainability. As a result, this study can serve as basic data to strengthen corporate competitiveness and establish itself as a fashion brand for sustainability through actionable strategies applicable to the domestic fashion industry in the future.

성인병 뉴스 제303호

  • The Korea Association of Chronic Disease
    • The Korean Chronic Disease News
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    • no.303
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    • pp.1-18
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    • 2006
  • 한국만성질환관리협회 신준식 부회장/국가 심.뇌혈관 질환 예방위 설치/약제비 절감‘포지티브’제도 강행/6월부터 환자 식대 보험 적용 확정/말기암 환자 호스피스기관 선정/“농촌지역 암.만성질환 관리 시급”/의료법인, 세제개선 헌법소원 추진/‘신약인프라 구축’5개년 계획 추진/화장품에 인태반 원료 사용 금지/약국 간판.광고 규제 대폭 완화/‘한방의학으로 수술 않고, 척추질환 치료’/“건강의 비결은 걷는데 있다”/식이섬유 1일 평균 19.8g 섭취/식도암, 내시경 수술 효과 좋았다/만성질환 관리의 현황과 발전방향/“40~50대 파킨슨병 발생 많다”/전립선비대증 치료‘시알리스’효과 있다/위암 수술 후‘젤로다+ 엘록사틴’투여 평가/

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1-Hydroxy-4-tosyloxy cyclohexane and 1,4-Ditosyloxy cyclohexane as Acid Amplifiers To Enhance the Photosensitivity of Positive-Working Photoresists (포지티브 포토레지스트의 감도 증진을 위한 산증식제로 1-Hydroxy-4-tosyloxy cyclohexane과 1,4-Ditosyloxy cyclohexane에 관한 연구)

  • 정연태;이은주;권경아
    • Journal of the Korean Graphic Arts Communication Society
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    • v.20 no.1
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    • pp.91-101
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    • 2002
  • An acid amplifier is defined as an acid-generating agent which is decomposed autocatalytically to produce new strongly acidic molecules in a non-liner manner, The addition of the acid amplifiers to conventional chemically amplified photoresists consisting of photoacid generators and acid-sensitive polymers result in the improvement of photosensitivity due to the amplified generation of catalytic acid molecules as a result of the decomposition of acid amplifiers. We synthesized and evaluated 1-hydroxy-4-tosyloxy cyclohexane(AA-1) and 1,4-ditosyloxy cyclohexane(Ah-2) as novel acid amplifiers. The acid amplifiers(AA-1, AA-2) showed reasonable thermal stability for resist processing temperature. As estimated by the sensitivity curve, tort-butyl methacrylate homopolymer(ptBMA) film doped with AA-1 or 2 exhibited much higher photosensitivity than ptBMA film without AA-1 or 2. And AA-1 showed higher effect than AA-2 on enhancing photosensitivity of ptBMA film.

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대북 경수로사업 추진 경위와 의의

  • 이동진;정환삼
    • Proceedings of the Korean Nuclear Society Conference
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    • 1996.05d
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    • pp.494-501
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    • 1996
  • 북핵문제 해결의 대안으로 제기된 대북경수로제공 논의에서 우여곡절 끝에 '한국형경수로 제공'과 '한국의 중심적 역할'이 결정되고 이를 주관할 국제 컨소시엄인 한반도에너지개발기구(KEDO)가 구성되어 북한과는 공급협정을, 한국전력공사와는 주계약자지정합의서를 체결함으로써 상업계약 체결에 관계없이 일단 사업 착수를 위한 큰 틀이 갖추어지게 되었다. 이에 따라 울진 3, 4호기를 참조발전소로 한 경수로 2기가 우리의 주도로 2003년을 목표 시한으로 함남 신포 인근에 건설되게 되었다. 부지조사도 대체로 마무리되어, 곧 환경영향평가 작업이 있을 예정이다. 약 45억 달러가 소요될 건설 비용은 한국이 대부분을, 일본이 상당부분을, 미국이 일부를 맡기로 대체로 합의되어 있으나, 최종 확정에 앞서 논란의 소지가 남아 있으며, 사업 참여 지분을 두고도 KEDO 참여국 간에 갈등이 예상된다. 이 사업의 의의는 크게는 어려움을 겪고 있는 북한의 에너지난 타개를 지원함으로써 그들을 개방으로 이끌어 남북간 화해와 세계평화를 조장하며, 작게는 우리의 원자력산업이 세계시장으로 뻗어 나가기 위한 계기를 마련하는데 있다. 이를 통해 포지티브 섬으로서의 통일의 초석을 마련한다는 민족적 대의에 충실하고 국가이익에 좌우되는 신국제질서의 생리를 직시함으로써 남북문제에 있어서는 대승적 자세로, 국가간 경비분담과 지분배분 협상에는 자주적 자세로 임함으로써 모처럼 원자력계에 주어진 막중한 소임을 차질없이 완수할 수 있도록 해야 할 것이다.

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성인병 뉴스 제306호

  • The Korea Association of Chronic Disease
    • The Korean Chronic Disease News
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    • no.306
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    • pp.1-30
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    • 2006
  • 안산시 단원 보건소 박영숙 소장/노인인구 급증 사회적 부담 증폭/“병원 자본조달?투자활성화 필요”/차관지원의료기관 연체금 감면 지원/의료기관평가, 관민공동참여를/“환자급식 제공실태 일제 점검”/인천시, 만성질환 관리 위해 나섰다/통합건강증진 프로그램 시범 운영/약가 포지티브 시스템 강행/Metformin은 당뇨병의 모든 키워드 함축한 약제/Metformin, 혈당개선.심혈관질환 예방“효과”/대사증후군 환자 인슐린저항성 개선...당뇨병 예방/“내당능장애 환자, 당뇨병 걸릴 위험 높다”/“Metformin, 저혈당 일으키지 않는 대단히 좋은 약제”/국내연구서 metformin 복용 인슐린 투여량 감소 입증/“Novamet GR, 폴리머 통해 약물 분비 조절한다”/새벽녘에 생기는 공복혈당 적절한 억제 기대/의료법인 단계적 수익사업 허용/고지 혈증/건강검진수가도 종별가산율 적용돼야/

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