RISS 학술연구정보서비스

검색
다국어 입력

http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.

변환된 중국어를 복사하여 사용하시면 됩니다.

예시)
  • 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
  • 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
닫기
    인기검색어 순위 펼치기

    RISS 인기검색어

      검색결과 좁혀 보기

      선택해제
      • 좁혀본 항목 보기순서

        • 원문유무
        • 음성지원유무
        • 원문제공처
          펼치기
        • 등재정보
          펼치기
        • 학술지명
          펼치기
        • 주제분류
          펼치기
        • 발행연도
          펼치기
        • 작성언어
        • 저자
          펼치기

      오늘 본 자료

      • 오늘 본 자료가 없습니다.
      더보기
      • 무료
      • 기관 내 무료
      • 유료
      • [논문]Operational Characteristics of CO2 Laser Adopted by Superposing-Discharge

        Hee-Je Kim,Hyun-Ju Chung,Byoung-Dae Min,Jong-Han Joung,Sung- lun Park 釜山大學校生産技術硏究所 2003 生産技術硏究所論文集 Vol.62 No.-

        오늘날 현저한 CO2 레이저의 응용 추세에 발맞추어 보다 다양한 형태의 출력 제어 기술이 대두되고 있다. 본연구에서는multi-Pulse Superposing-Discharge 기술을 이용하여 다양한형태의 CO2 레이저의 펄스를 성형 하였다. 펄스 성형을 위한 방법으로 PIC one-chip microprocessor를 이용하여 삼중 PFN 모률의 SCR을 각각 고유의 지연시간을 가지도록 제어하였다. 실험에 사용된 삼중 PFN 모률의 전원 회로는 각각 캐패시터 인덕터,SCR,고압 펄스 트랜스 그리고 고압 트랜스 2차측에 브릿지 정류기로 구성 하였다. 고압 펼스 트랜스의 1차측을 제어하므로서 PFN 모률의 동작을 저 전압에서 수행 할 수 있다. 트랜스의 2차측에 연결된 전파 정류기는 펄스 에너지를 부하에 지속적으로 전달한다. 본 연구에서는 삼중 PFN 모률의 각각의 SCR을 다른 시간 가격을 두고 트리거 하므로서 다양한 Long pulse shaping을 실현하였다. 또한 약 250-1000μs 의 주기를 가지는 다양한 펄스형 레이저 빔을 얻었다.

      • KCI등재후보

        Studies on the Effects of Biomedicinal Agents on Serum Concentration of Ca2+ , P and ALP Activity in Osteoporosis-Induced Rats

        Sang-keun Kim,Myung-hun Lee,Man-hee Rhee 대한수의학회 2003 JOURNAL OF VETERINARY SCIENCE Vol.4 No.2

        on the Effects of Biomedicinal Agents on Serum Concentration of Ca2+, P andALP Activity in Osteoporosis-Induced RatsSang-keun Kim, Myung-hun Lee1 and Man-hee Rhee2College of Veterinary Medicine, Chungnam National University, 220 Gungdong, Yusong-Gu, Daejeon 305-764, Korea1National Veterinary Research and Quarantine Service, Anyang 430-824, Korea2College of Veterinary Medicine, Kyungpook National University, Daegu 702-701, KoreaReceived April 3, 2003 / Accepted July 9, 2003J. Vet. Sci. (2003), 4(2), 151-154JOURNAL OFVeterinaryScience*Corresponding author: Sang-keun Kim Dept. of Vet. Med., Chungnam National University, Daejeon 305764, Korea Tel: +82-42-821-6754, Fax: +82-42-821-6754 E.-mail: kskkim@cnu.ac.kr

      • On the Interpretive Complex Phenomena in terms of Apparent Imperfections

        Kim, Sung Hun,Choe, Hee Sook 한국현대언어학회 2001 언어연구 Vol.17 No.1

        Kim, Sung-Hun & Choe, Sook Hee. 2001. 의미해석 복합체에 관한 고찰: 외견상 비완벽성을 중심으로. 언어연구 17-1, 297-311. 본 논문에서는 Chomsky(1998, 1999)의 외견상 비완벽성 개념에 의하여 설명될 수 있는 문법 현상인 의미해석 복합체에 관하여 조사한다. 한국어의 격 첨사들이 초점과 같은 정보 구조에 미치는 효과들을 최소주의 이론에서 어떻게 설명하고 있는지를 논의한다. 특히, 어떤 문맥에서는 격 첨사의 초점 정보 효과들이 외견상 비 완벽성에 의하여 포착되는 의미해석 복합체 현상(Chomsky 1999)이라고 제안한다. 또한 한국어에서 어떤 장거리 뒤섞기 현상들은 외견상 비완벽성에 기인하는 정보 구조 효과를 일으키는 것으로 간주한다. 다시 말해서, 장거리 뒤섞기는 비완벽성이지만 장거리 뒤섞기의 초점 효과들은 외견상 비완벽성을 이끈다고 주장한다. (단국대학교/한국과학기술원)

      • SSCISCIESCOPUS

        Associations of serotonergic genes with poststroke emotional incontinence

        Kim, Jae‐,Min,Stewart, Robert,Kang, Hee,Ju,Bae, Kyung‐,Yeol,Kim, Sung‐,Wan,Shin, Il‐,Seon,Kim, Joon‐,Tae,Park, Man‐,Seok,Cho, Ki‐,Hyun,Yoon, Jin‐ John Wiley Sons, Ltd 2012 INTERNATIONAL JOURNAL OF GERIATRIC PSYCHIATRY Vol.27 No.8

        <P><B>Objectives</B></P><P>Poststroke emotional incontinence (PSEI) has been associated with serotonergic dysfunction. Polymorphisms of serotonin transporter (5‐HTT) and serotonin 2a receptor (5‐HTR2a) genes may regulate serotonergic signaling at brain synapses, and this study was to investigate associations with PSEI in an East Asian population.</P><P><B>Methods</B></P><P>In 276 stroke cases, PSEI was diagnosed by Kim's criteria. Covariates included age, gender, education, history of depression or stroke, current depression, and stroke severity and location. Genotypes were ascertained for 5‐HTT gene‐linked promoter region (5‐HTTLPR), serotonin transporter intron 2 variable number tandem repeat, 5‐HTR2a 1438A/G, and 5‐HTR2a 102 T/C. Associations with PSEI were estimated by using logistic regression models, and gene–gene interactions were investigated by using the generalized multifactor dimensionality reduction method.</P><P><B>Results</B></P><P>PSEI was present in 37 (13.4%) patients. The 5‐HTT gene‐linked promoter region <I>s</I>/<I>s</I> genotype was independently associated with PSEI. No associations with STin2 VNTR and 5‐HTR2a genes were found, and no significant gene–gene interactions were identified.</P><P><B>Conclusions</B></P><P>Stroke patients with 5‐HTTLPR <I>s</I> allele had higher susceptibility to PSEI, which underlines the potential role of serotonergic pathways in its etiology. Copyright © 2011 John Wiley & Sons, Ltd.</P>

      • An Improved Speech Processing Strategy for Cochlear Implants Based on an Active Nonlinear Filterbank Model of the Biological Cochlea

        Kim $^$, Kyung Hwan,Choi, Sung Jin,Kim, Jin Ho,Kim, Doo Hee IEEE 2009 IEEE Transactions on Biomedical Engineering Vol.56 No.3

        <P>The purpose of this study was to improve the speech processing strategy for cochlear implants (CIs) based on a nonlinear time-varying filter model of a biological cochlea. The level-dependent frequency response characteristic of the basilar membrane is known to produce robust formant representation and speech perception in noise. A dual resonance nonlinear (DRNL) model was adopted because it is simpler than other adaptive nonlinear models of the basilar membrane and can be readily incorporated into the CI speech processor. Spectral analysis showed that formant information is more saliently represented at the output of the proposed CI speech processor compared to the conventional strategy in noisy conditions. Acoustic simulation and hearing experiments showed that the DRNL-based nonlinear strategy improves speech performance in a speech-spectrum-shaped noise.</P>

      • KCI등재
      • KCI등재

        Assessment of In Vitro Assay System for Thyroid HormoneDisruptors Using Rat Pituitary GH3 Cells

        Hee Jin Kim1,Hae Young Park1,Jeonga Kim1,Il Hyun Kang2,Tae Sung Kim2,Soon Young Han2,Tae Seok Kang2,Kui Lea Park2,Hyung Sik Kim1 한국독성학회 2006 Toxicological Research Vol.22 No.4

        The development of in vitro assays has been recommended to screening and test-ing the potential endocrine disruptors (EDs). These assay systems focus only on identifying thethe thyroid hormone (TH) disruptors. The aim of this study was to evaluate a test system to detectTH disruptors using rat pituitary tumor GH3 cells. The test system is based on the TH-dependentincrease in growth rate. As expected, L-3,5,3-triiodothyronine (T3) markedly induced a morphologicalchange in GH 3 cells from flattened fibroblastic types to rounded or spindle-shaped types. T3 stimu-lated GH3 cell growth in a dose-dependent manner with the maximum growth-stimulating effect9 M. In addition, T3 increased the release of growth hor-mone and prolactin into the medium of the GH3 cells culture. Using this assay system, the TH-dis-rupting activities of bisphenol A (BPA) and its related compounds were examined. BPA,dimethylbisphenol A (DMBPA), and TCI-EP significantly enhanced the growth of GH3 cells in therange of 1 × 10-5M to 1 × 10-6M concentrations. In conclusion, this in vitro assay system might bestandardization before it can be used as a broad-based screening tool.

      • KCI등재후보

        Reactive Oxygen Species Generated by 17β-estradiol Play a Role in the Up-regulation of GPX4 Protein in MCF-7 Breast Cancer Cells

        Sang-Han Lee,Hee Jeong Kim2,Hyo Jin Kang,이윤진,남해선,배인수 한국유방암학회 2009 Journal of breast cancer Vol.12 No.3

        Purpose: Estrogen is known to act as both a growth factor and a survival factor for breast cancer. The responsible molecular mechanisms remain, however, to be fully elucidated. We hypothesize that the effect of estrogen relates to its ability to induce the cellular antioxidant defense enzymes. Methods: In the presence study, we examined the ability of 17β-estradiol (E2) to regulate the level of phospholipid hydroperoxide glutathione peroxidase (GPX4) protein, which is an anti-oxidative enzyme that can directly reduce both phospholipids and cholesterol-hydroperoxides located in the cell membranes and lipoproteins. Results: E2 elicited a dose- and time-dependent increase in the GPX4 expression in the MCF-7 breast cancer cells, and this up-regulation was blocked by the free radical scavenger N-acetylcysteine (NAC). Additionally, we confirmed that E2 triggered a rapid and transient increase in the intracellular reactive oxygen species (ROS) levels, and this E2-induced increase in the ROS levels was inhibited by pretreatment with NAC. Moreover, such ROS inducers as TGF-β, TNF-αand insulin induced an increase in the level of GPX4 protein. However, estrogen receptor (ER)αknockdown by transfection with ERα-siRNA did not significantly change the GPX4 protein level that was induced by E2. Furthermore, pre-incubation with the ER antagonist ICI 182,780 did not inhibit E2-mediated GPX4 induction. Conversely, pretreatment of cells with LY294002, a pharmacological inhibitor of phosphatidylinositol 3-kinase inhibitor, suppressed the E2-augmented GPX4 expression. Conclusion: Collectively, our data show that E2 may partly provide a survival advantage through the regulation of cellular oxidative homeostasis in MCF-7 breast cancer cells.

      • KCI등재

        한국 역사극의 기원과 정착 : 역사소설/야담과의 교섭과 담론적 성격을 중심으로

        김성희 ( Sung Hee Kim ) 한국드라마학회 2010 드라마연구 Vol.- No.32

        This paper examines the mode in which Korean historical play interacted with historical novel and historical romance, as a way of exploring its origin and establishment. In the process of historical play emerging and developing as a sub-genre of modern drama in Korea, historical novel and historical romance played an important role as the source of materials. While history was deployed and recreated by novel, romance and drama/play and enjoyed its popularity, the socio-cultural context such as colonial rule and censorship, and the dominant discourse of empire and nation at the time had a big influence. The writers and intellectuals desired ethno-nation(minjok), the imagined community as a sublime object that could replace the absence of the state and found its representations in history. History granted sense of continuity and dignity to the colonized subject that could replace the sense of gap and rupture that they experienced under the colonial rule; hence, it was accepted by the colonized along with the national discourse that was believed to implode the imperial discourse. It seems that most common ways for the writers from colonial period to approach history were divided into two. One was to choose a material from history in order to get by censorship and speak out about and criticize the reality indirectly. In this case, historical play took on the form of ``a prehistory of present`` and an allegory of reality. Many historical plays in colonial period dealt with the fall of a state, which could be seen to reflect the writers` consciousness to contemplate the fall of a state and replace its absence with the restoration of the nation(minjok). The other was to appropriate history and represent it as a discursive construct. Appropriation of history took on two modes. One was the writer appropriating history in order to create an ideological fantasy of his/her own; and the other was to involve socio-cultural context or discourse of the time in the process of summoning and appropriating history. Among the three plays that are based on Yi Gwang-su`s The Crown Prince in Hemp Clothes, Choe Byeong-hwa`s Princess Nak-rang is imbued with the tendency to enlighten people that is characteristic of national discourse. In Yu Chi-jin`s Mount Gaegol, a prince of a ruined nation falling in love with a princess from his enemy state appears as a metaphor for the conflict between empire and colony, and an allegory for the colonized nation. Han Sang-jik`s History of Long Nights reveals the undisclosed affairs that happened inside the court by choosing to tell the story only through female characters. In doing so, it succeeds in producing the ambivalence of achieving the gender effects by feminizing colonial Joseon through Shilla court and creating envy for the powerful masculinity of Japanese empire. The 1930s was the time in which historical romance flourished as popular readings and popular performance alongside the success of historical novel. Yi Dong-gyu`s Portrait of Falling Flowers which dramatized a historical romance is worth paying attention to, as an example in which colonial discourse penetrated into literature. In this historical play, which was published in 1940 during the war footing, the representation of ``mother`` differs from its original historical romance. In the historical romance, mother emphasizes the happiness of her son over nation, but in Yi Dong-gyu`s historical play, mother is represented as the ``militant mother`` who educates her son to give up his life for greater good, hence showing signs of subsumption by colonial discourse. Historical plays in colonial period are melodramas that exaggerates and emphasizes characters` emotions and tears. However, when read in the context of colonial/national discourse and social context, they uncover a much more complicated political geography. They are problematic texts that casts a complex ``shadow`` interwoven with the ruptures and ambivalent signification of colonial/national discourse. 본 연구는 한국 역사극 장르의 형성과정을 탐구하는 한 방식으로, 역사소설과 야담과의 교섭양상을 고찰해보고자 했다. 근대극의 하위장르로서 역사극장르가 발아하고 정착하는 과정에서, 역사소설과 야담은 역사극의 소재원천으로 중요한 역할을 했다. 역사가 소설, 연극(희곡), 야담 등에 소환되고 재현되는 창작 과정과 대중적 인기를 누린 데에는 식민지현실과 검열이란 사회문화적 컨텍스트와 당대의 지배적인 제국/민족 담론의 영향이 컸다. 당대 작가/지식인들은 국가의 부재를 대체할 숭고대상으로 민족이란 상상공동체를 욕망했고, 그 표상을 역사에서 발견했다. 역사는 피식민주체에게 단절이 아닌 연속성과 자존감을 부여하는 대상이었으며, 제국담론을 내파할 수 있는 민족담론과 결부되어 수용되었다. 식민지 시기 작가들의 역사에 대한 접근태도는 대체로 두 가지 방식으로 나타났다. 첫째는 검열을 피하기 위해 역사 소재를 선택하여 현실을 우회적으로 비판하고 발화한 방식이다. 이 경우 역사극은 ``현재의 전사``이자 현실의 알레고리 성격을 띤다. 식민지시기의 많은 역사극이 멸망사를 다루고 있는데, 이는 국가의 멸망을 사유하고 국가의 부재를 민족의 복원으로 대체하고자 한 작가의식을 대변한다. 두번째 방식은 역사를 전유하여 담론적 구성물로 재현하는 경우이다. 역사의 전유 양상은 두가지 경향으로 나타났다. 하나는 작가가 이데올로기적 판타지를 구현하기 위해 역사를 전유하는 경우이며, 또하나는 역사소환과 전유 과정에 당대 사회문화적 컨텍스트와 담론을 개입시키는 경우이다. 이광수의〈마의태자〉를 저본으로 극화한 3편의 희곡 중 최병화의〈낙랑공주〉는 민족담론의 계몽성을 짙게 드러낸다. 유치진의〈개골산〉은 적국의 공주와 사랑에 빠지는 망국의 왕자를 등장시켜, 이를 제국과 민족의 갈등으로 은유함으로써 식민지현실의 알레고리적 성격을 드러낸다. 한상직의〈장야사(長夜史)〉는 여성인물들만 취택하여 궁중비사를 재현한다. 여성화된 신라 궁중은 식민지조선의 여성화라는 젠더적 효과와 제국의 강력한 남성화에 대한 선망효과라는 양가성을 드러낸다. 1930년대는 역사소설의 전성과 더불어 야담도 대중독물 혹은 대중 퍼포먼스로 전성한 시기였다. 야담을 극화한 이동규의〈낙화도〉는 당대 식민담론과의 접속 양상을 드러낸다는 점에서 주목된다. 1940년 전시체제기에 발표된 이 역사극에서, ``어머니``의 재현은 야담과 차이를 보인다. 야담의 어머니는 나라보다 아들의 행복을 강조하지만, 이 역사극에선 대의를 위해 목숨을 바칠 것을 계몽하는 ``군국의 어머니``로 재현됨으로써 식민담론에의 포섭양상을 드러낸다. 식민지시기 역사극은 감정과잉과 눈물이 강조된 멜로드라마이다. 그러나 당대 식민/민족 담론과 사회적 컨텍스트와 관련지어 읽으면 복잡한 정치적 지형도가 드러난다. 식민/민족 담론의 분열과 양가적 의미작용이 교직되어 복잡한 ``그림자``를 함유한 문제적 텍스트인 것이다.

      연관 검색어 추천

      이 검색어로 많이 본 자료

      활용도 높은 자료

      해외이동버튼