• 제목/요약/키워드: Self-limited characteristics

검색결과 159건 처리시간 0.024초

역사 속에 나타난 남성 화장의 특성 (The Characteristics of Men's Cosmetic through the History)

  • 김주애;이연희
    • 한국패션뷰티학회지
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    • 제2권3호
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    • pp.96-101
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    • 2004
  • This study suggests the basic resources for men's cosmetic which shows in history. Because not only ancient chief but also modern French noble men made up in the area where succeeded the traditional national cosmetic, when it was seen through historic or world, the men's cosmetic was generated and was more luxurious and presence than women. But since the French revolution, men was limited the collection of fashion, also the luxurious cloth and cosmetic disappeared. It was 1960s that men's cosmetic based rock musicians reappeared. And then, rock musicians made up luxuriously. The early cosmetic of rock musicians began from the protest's meaning for old fashioned value and fixed society. But gradually, it was changed the style that valued appearance's beauty. In the past, movie star's hair style and cloth were the basic fashion, but now the sportsmen are recognized heroes and their cosmetic is prevailing. Today, the basic meaning of men's presence fashion is that men and women's each role and self expression is allowed and appearance's decoration showed from sex roles disappeared. Men is limited body's beautiful expression and collective range but they fluently express each self imagination through work, special hobby, female attire and drag queen. From various men's beautiful expression, we will know that human beings want a society which is recognizing different self expressions.

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$N_2{O}$가스로 재산화시킨 oxynitride막의 특성 (Properties of the oxynitride films formed by thermal reoxidation in $N_2{O}$ gas)

  • 김태형;김창일;최동진;장의구
    • E2M - 전기 전자와 첨단 소재
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    • 제7권1호
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    • pp.25-31
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    • 1994
  • Properties of oxynitride films reoxidized by $N_2{O}$ gas after thermal oxidation and $N_2{O}$ oxide films directly oxidized by using $N_2{O}$ gas on the bare silicon wafer have been studied. From the AES analysis, nitrogen pile-up at the interface of Si/oxynitride and Si/$N_2{O}$ oxide has observed. $N_2{O}$ oxide and oxynitride films have the self-limited characteristics. Therefore, it will be possible to obtain ultra-thin films. Nitrogen pile-up at the interfaces of Si/oxynitride and Si/$N_2{O}$ oxide strengthens film structure and improves dielectric reliability. Although fixed charge densities and interface trap densities of N20 oxide and oxynitride films have somewhat higher than those of thermal $SiO_2{O}$, $N_2{O}$ oxide and oxynitride films showed improved I-V characteristics and constant current stress.

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Self-Organized Authentication in Mobile Ad-Hoc Networks

  • Caballero-Gil, Pino;Hernandez-Goya, Candelaria
    • Journal of Communications and Networks
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    • 제11권5호
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    • pp.509-517
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    • 2009
  • This work proposes a new distributed and self-organized authentication scheme for mobile ad-hoc networks (MANETs). Apart from describing all its components, special emphasis is placed on proving that the proposal fulfils most requirements derived from the special characteristics of MANETs, including limited physical protection of broadcast medium, frequent route changes caused by mobility, and lack of structured hierarchy. Interesting conclusions are obtained from an analysis of simulation experiments in different scenarios.

육용종웅계의 사양방법이 체성장 및 성 성숙에 미치는 영향 (Effects of the Feeding Methods on Body Growth and Sexual Maturity in Broiler Breeder Males)

  • 연성흠;이규승;정일정;정선부
    • 한국가금학회지
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    • 제13권2호
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    • pp.197-208
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    • 1986
  • 본 시험은 6가지 다른 사양방법이 White Plymouth Rock 육용종 웅계의 생체중, 정소, 계관 그리고 뇌하수체의 발육 및 성성숙에 미치는 영향을 구명하기 위하여 부화후부터 22주령까지 2주간격으로 생체중, 정소, 계관 그리고 뇌하수체의 중량이 조사되었으며, 또한 정소조직과 정액성상이 조사되었다. 그 얻어진 결과를 요약하면 다음과 같다. 1. 생체중, 정소, 계관의 발육은 10주령 이후부터 무제한급이군들이 제한급이군들(무제한급이군들의 70%급이)보다 2주 더 빠름을 나타내었다. 정소 및 계관의 급증시기는 무제한급이군들에서 20주령이었고, 제한급이군들에서 22주령이었다. 2. 뇌하수체의 무게는 부화후부터 22주령까지 4주령, 14주령, 16주령을 제외하고 각 주령별, 각 처리군간에 유의성이 나타나지 않았다. 뇌하수체의 중량은 주령이 경과하면서 완만한 증가를 나타내었다. 3. 22주령까지에서 주령, 생체중, 정소, 계관 및 뇌하수체간에는 고도의 유의적인 상관관계를 나타내었다. 4. 세정관의 관경과 강경은 부화후부터 10주령까지 점진적으로 증가되다가 무제한 급이군들에서는 12주령부터 제한급이군들에서는 14주령부터 급증하기 시작하였고, 그 후에도 22주령까지 계속증가되었다.

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Lateral Resolution Enhancement in Confocal Self-interference Microscopy with Commercial Calcite Plate

  • Kang DongKyun;Yoo HongKi;Lee SeungWoo;Gweon Dae-Gab
    • Journal of the Optical Society of Korea
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    • 제9권1호
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    • pp.32-35
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    • 2005
  • In light microscopy, spatial resolution is limited by diffraction effect. Confocal microscopy has improved resolutions in both lateral and axial directions, but these are still limited by diffraction effect. Confocal self-interference microscopy (CSIM) uses interference between two perpendicularly polarized beams to enhance lateral resolution. In previous research, we proposed a calcite plate with its optic-axis perpendicular to the propagation angle and one of the boundary surfaces of the plate. This type of plate is not widely used to our knowledge. In this paper, we change the calcite plate to more common one, which is commercially available. This calcite plate has its optic axis in the plane of incidence. We analyze the characteristics of this calcite plate and numerically compare the performances of CSIM in previous research and CSIM with the commercial calcite plate. Numerical results show improved performance when using the commercial calcite plate

고온 초전도 퓨즈의 한류 및 방전 특성 (Current Limiting and Discharge Characteristics of High Tc Superconductive Fuse)

  • 최효상
    • 한국전기전자재료학회논문지
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    • 제17권6호
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    • pp.673-677
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    • 2004
  • We present the basic properties of a superconductive fuse (SF) based on YBCO/Au films. The SF consists of YBCO stripes covered with Au layers for current shunt. The fault current was limited to a designed value in less than 0.4 msec by resistance development in YBCO/Au upon quenching. This enabled the SF to transfer small fault power and the suppressed current was sustained for more than 0.5 msec while Au layer melting and arcing. The arcing time was less than 2.5 msec, that is short enough to do self-interruption. Under the source voltage of 100 $V_{rms}$, the longer the duration time of fault current was, the shorter its discharge time was. The duration time of fault current and its discharge time were reduced by increased voltages in the range of 200 - 300 $V_{rms}$. We thought that this was because the quench propagation was limited by local melting generated with higher voltage.age.

DCM(심층혼합처리공법)에 의한 자립식 흙막이 적용사례 (Application for Self-Supported Retaining Wall Using Deep Cement Mixing)

  • 정경환;김용완;신민식;한경태;김태효
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2006년도 춘계 학술발표회 논문집
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    • pp.257-267
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    • 2006
  • The earth retaining wall systems for excavation works in a populated urban area or a poor soil deposit can be limited due to various restriction. Thus there are various methods to be applied for them such as the soldier pile method, the diaphragm wall with counterfort and so on. In this study, the self-supported earth retaining wall using the DCM(Deep Cement Mixing) method, including its merits, demerits and some important characteristics occured in the design and the construction stage, was introduced. It might be reference for the other design and construction procedures using the DCM method.

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선배열 예인 음탐기의 음향 모듈을 따라 전파하는 축대칭 진동에 기인한 음향 센서 자체 소음 해석 (Self Noise Analysis of Towed Array Sonar Induced by Axisymmetric Vibrations Propagating Along Fluid-filled Elastic Hoses)

  • 유정수;신현경;안형택;권오조
    • 한국소음진동공학회논문집
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    • 제21권5호
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    • pp.437-446
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    • 2011
  • Performance of array sonars towed underwater is limited due to the self-noise induced mainly by the strumming vibration of the towing cable and also turbulent flow around the acoustic sensor module. The vibration of the towing cable generates axisymmetric waves that propagate along the acoustic module of the array sonar and produce self-noise. The present study aims to investigate the characteristics of the self-noise induced by the axisymmetric vibrations of the acoustic module. The waves of interest are the bulge and extensional waves propagating along the fluid-filled elastic hose. Dispersion relations of these waves are predicted by means of the numerical simulation to evaluate the wave speeds. The self-noise induced by the axisymmetric waves are formulated taking into account the damping of the elastic hose and the effect of the damping is investigated.

인터넷 쇼핑몰 의류상품 구매자의 불평행동 특성에 관한 연구 (A Study on Characteristics of Consumer Complaining Behavior on Internet Fashion Shopping Malls)

  • 최윤영;이진영;오희선;서용한
    • 한국의류산업학회지
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    • 제6권5호
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    • pp.595-604
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    • 2004
  • This study is to investigate complaining behavior of consumers who purchase fashion products on the internet, as well as to find how the complaining behaviors are related to the consumers' characteristics. The subjects of this study are limited to the consumers who have experienced dissatisfaction when purchasing fashion products through the internet. The questionnaires were administered to male and female respondents using the internet shopping mall. The results can be summarized as follows: The factor analysis shows that consumer complaining behaviors are fitted well into four factors(direct complaining behavior, private complaining behavior, third-party complaining behavior, and no response). In the difference analysis by consumer's complaining behavior styles and gender, private complaining and third-party complaining behavior were significant statistically. In the difference analysis between consumer's complaining behavior styles and internet self-efficacy. Internet self-efficacy was significantly different according to consumer's complaining behavior styles, especially for direct complaining, third-party complaining and no response. Private complaining behavior, third-party complaining behavior and no response were negatively related to consumer retention, while direct complaining behavior was not.

확률형 아이템 규제안에 대한 비판적 분석: 이중랜덤박스의 구조와 규제에 대한 연구 (Critical analysis about the game self-regulation bill: A study about the structure and regulation of Double loot box)

  • 조희선;유승호
    • 한국게임학회 논문지
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    • 제19권4호
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    • pp.49-64
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    • 2019
  • 본 연구는 세 가지 유형의 이중랜덤박스를 비교하여 살피고, 각각의 이중랜덤박스의 특징과 구조를 실제 게임 사례 중심으로 분석하였다. 유형은 1) 이중 마일리지 가챠, 2) 이중 기간한정 가챠, 3) 콤프 가챠로 분류된다. 연구의 결과 도출된 이중랜덤박스의 특징은 1) 다양한 종류의 가챠를 복합적으로 설계하는 경향이 있으며, 2) 최종 보상물은 게임에서 얻기 어렵거나, 게임상점에서 판매하지 않는다는 것이다. 해당 특징들로 말미암아 이중랜덤박스는 사행성이 있는 판매 전략이 될 수 있었으며, 본 연구에서는 이를 해결하기 위해 효과적인 자율 규제안의 재적용, 모니터링단의 전문성 강화, 게임사의 자발적 자정 노력이 필요함을 제언하였다.