• Title/Summary/Keyword: Ji-kang

Search Result 7,261, Processing Time 0.04 seconds

Synthesis and Electroluminescence Properties of Novel Deep Blue Emitting 6,12-Dihydro-diindeno[1,2-b;1',2'-e]pyrazine Derivatives

  • Park, Young-Il;Son, Ji-Hee;Kang, Ji-Soung;Kim, Soo-Kang;Lee, Ji-Hoon;Park, Jong-Wook
    • 한국정보디스플레이학회:학술대회논문집
    • /
    • 2008.10a
    • /
    • pp.545-548
    • /
    • 2008
  • We report the synthesis of blue emitting materials with a new core structure containing indenopyrazine. Non-doped device using one of these materials as a blue emitter was found to exhibit high external quantumn efficiency of 4.6% and excellent color purity of (0.154, 0.078) as well as narrow emission band of 47nm FWHM.

  • PDF

A Clinical Trial on Efficacy of Gagamchengyoung-tang(Jiājiǎnqīngyíng-tāng) in the Alopecia Patients with Febrile Tendency (열성 탈모환자에 대한 가감청영탕(加減淸營湯) 효과의 임상적 연구)

  • Hong, Jung-Ae;Kang, Su-Jin;Jang, Jin-Young;Kang, Yeo-Reum
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
    • /
    • v.26 no.2
    • /
    • pp.19-29
    • /
    • 2013
  • Objectives : The main purpose of this study is to investigate the efficiency of Gagamchengyoung-tang (Ji$\bar{a}$ji$\check{a}$nq$\bar{i}$ngy$\acute{i}$ng-t$\bar{a}$ng) and examine the febrile tendency in the alopecia patients Methods : Of the patients who have visited Balmers Korean Medicine clinic for alopecia from December first 2012 to December 31st 2012, we enrolled 30 patients and performed heat and cold diagnosis, examine scalp and check hair density. We administrated Gagamchengyoung-tang(Ji$\bar{a}$ji$\check{a}$nq$\bar{i}$ngy$\acute{i}$ng-t$\bar{a}$ng) and acupuncture to all patients. The effect was assessed by scalp condition and hair density Results : The scalp disorder index decreased and hair density increased in alopecia patients with febrile tendency Conclusions : All patients had febrile tendency and Gagamchengyoung-Tang(Ji$\bar{a}$ji$\check{a}$nq$\bar{i}$ngy$\acute{i}$ng-t$\bar{a}$ng) can be effective in the scalp disorder and alopecia.

A Study on Effective Advertising Execution of Mobile Game (모바일 게임의 효과적인 광고 집행 방향에 관한 연구)

  • Kim, Ji-Yeon;Jeong, Ji-Won;Lee, Jong-Won
    • Proceedings of the Korean Society of Computer Information Conference
    • /
    • 2019.07a
    • /
    • pp.295-298
    • /
    • 2019
  • 2018년의 모바일 게임의 이용률은 2017년 대비 28.5%의 높은 성장률을 보이고 있다. 모바일 게임 시장이 확대되면서, 게임의 성공을 위해 광고와 마케팅의 필요성이 제기되기 시작했다. 개발기간과 비용이 상대적으로 큰 대작 게임들이 대규모 예산을 브랜딩 예산에 투자하면서, 브랜딩 매체에서 모바일 게임 업종도 큰 축이 되었다. 본 논문에서는 한국광고총연합회 광고정보센터 크리에이티브DB를 활용하여 게임의 광고 집행유형을 분석하고 신규 게임을 런칭할 때 효과적인 광고 방향을 제안한다.

  • PDF

Algorithm for Electric Vehicle Charging Aggregator Using Fuel Cell (연료전지를 이용한 전기자동차 충전Aggregator 알고리즘)

  • Park, Seung-Gil;Ryu, Jeong-Hun;Seo, Woo-Seok;Kim, Woo-Joong;Hwang, Chang-Hyun;Yoo, Young-Sang;Kang, Sang-Hee
    • Proceedings of the KIEE Conference
    • /
    • 2015.07a
    • /
    • pp.596-598
    • /
    • 2015
  • 본 논문에서는 전기자동차 충전 시 예상되는 선로 과부하 문제와 전압강하 문제를 해결하기 위해 연료전지를 이용한 충전 Aggregator 알고리즘을 제안한다. 충전Aggregator 알고리즘은 충전부하 투입 알고리즘과 충전부하 제거 알고리즘으로 구성되어 있다. 충전부하 투입 알고리즘은 충전부하 투입 전 선로전력과 전압강하를 예측하여 예측 된 값들이 허용범위를 초과하지 않을 경우 충전을 시작하는 알고리즘 이고 충전부하 제거 알고리즘은 전기자동차 충전 중 일반부하의 증가로 문제 발생 시 충전부하를 제거하는 알고리즘이다. 제안된 알고리즘은 PSCAD/EMTDC를 이용해서 연료전지가 연계된 특정지역의 배전계통을 모델링하여 검증하였다.

  • PDF

Reduction of Hexavalent Chromium by Escherichia coli ATCC 33456 in Batch and Continuous Cultures

  • Bae, Woo-Chul;Kang, Tae-Gu;Kang, In-Kyong;Won, You-Jung;Jeong, Byeong-Chul
    • Journal of Microbiology
    • /
    • v.38 no.1
    • /
    • pp.36-39
    • /
    • 2000
  • Toxic hexavalent chromium, Cr(VI), was reduced to a less toxic trivalent chromium form by E. coli ATCC 33456. The suitable electron donor for Cr(VI) reduction was glucose. E. coli ATCC 33456 was more resistant to metal cations than other reported Cr(VI) reducing microorganisms. Cell growth was inhibited by the presence of Cr(VI) in a liquid medium and Cr(VI) reduction accompanied cell growth. With a hydraulic retention time of 20 h, Cr(VI) reducing efficiency was 100% to 84% when Cr(VI) concentration in the influent was in the range of 10 to 40 mg L$\^$-1/. Specific rate of Cr(VI) reduction was 2.41 mg Cr(VI) g DCW$\^$-1/ h$\^$-1/ when 40 mg L$\^$-1/ of Cr(VI) influent was used. This result suggested the potential application of E. coli ATCC 33456 for the detoxification of Cr(VI) in Cr(VI) contaminated wastewater.

  • PDF