• 발명하는 사람들
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• 34호
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• pp.3-4
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• 2005

특허청, 공익변리사 특허상담센터 업무 개시 - 12지 띠동물을 소재로 한 상표, `눈에 띄네` - 특허청, 수수료 체계 개선과 함께 감면대상 확대 - 변리사 5급 특별채용 경력 요건 완화 된다 - 쌀, 영양 물질로 부가가치 입혀라! - 상표 이름에 `녹색` 바람 불고 있다 - 특허고객 콜 센터 Angel-call 서비스로 권리 수호 - 특허청, 현안과제 액션러닝으로 풀기로 결정 - 한국여성발명협회, `여성 발명 교육` 운영 - `짝퉁 싸이월드` 세계 각국에서 등장 - `05년 1/4분기 특허출원, 전년 대비 21.5$\%$ 급증

• 대한전기학회:학술대회논문집
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• 대한전기학회 2002년도 하계학술대회 논문집 A
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• pp.67-69
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• 2002

This paper presents the statistical analysis of the circuit breaker's making current in large sacle industrical loads using EMTDC. Typically, the making current includes DC components as the phase angel of making instances varies and represents as a instantaneous valus not rms. Consequently, in this paper, the statistical analysis results of making current and steady state fault current for typical industrial loads presents.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 1997년도 춘계학술대회 논문집
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• pp.910-920
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• 1997

In this paper, some of the critical factors in Necking-In process are investigated using a numerical analysis. The optimal processing parameters are established and applied to the actual processes. FEM analysis is carried out based on elastic-plastic work hardening model using ABAQUS / Standard. The results obtained form the commercially available code ABAQUS / standard are compared with the experimental data and shows a good agreement with experimental data. The purpose of this paper is to search for the relations among the roller angel, feed length, and working force. Stress, strain distribution, displacement and increase in the length of the workpiece are also investigated.

• 대한수학회보
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• 제43권4호
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• pp.671-677
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• 2006

Let $A, B{\in}B(H)$ be Hilbert space contractions, and let ${\Delta}_{AB}$ be the elementary operator ${\Delta}_{AB}:X{\rightarrow}AXB-X$. A number of conditions which are equivalent to '${\Delta}_{AB}$ has closed range' are proved.

• The International Journal of Costume Culture
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• 제3권2호
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• pp.88-99
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• 2000

Venture industry is becoming a driving force of Korean economy in the digital age of the 21 st century. The success of venture business depends on innovative technology, capital investment, and optimal environment providing industrial flexibility. Although venture business is starting to settle down in Korea, many barriers and challenges still remain. The current study analyzes the present status of venture business including fashion business and issues concerning the venture fund raising and provides prospective views to promote and improve venture industry in Korea.

• E2M - 전기 전자와 첨단 소재
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• 제10권1호
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• pp.68-75
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• 1997

본 해설에서는 평판 디스플레이 소자중의 하나인 LCD의 액정배향기술에 관하여 해설하였다. 액정배향은 LCD의 전기광학특성을 좌우하는 매우 중요한 기술이다. LCD 소자에 있어서 기판의 표면 위에 액정분자를 배열시키는 기술은 현재 러빙법이 주로 사용되고 있지만 러빙을 하지 않는 넌러빙법을 이용한 액정배향기술이 강하게 요구되고 있으며 향후 LCD에 있어서 보다 중요한 역할을 할 것으로 기대되고 있으며 고성능 LCD의 실현에는 필수 불가결한 기술로 생각된다.

• 원예과학기술지
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• 제16권3호
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• pp.361-363
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• 1998

온실에서 춘란(春蘭)과 다른 공시 난과식물을 분식(盆植)하고, 인위적인 타가수분을 실시하여 교배친화성을 검정한 결과, 춘란은 자가수분은 물론 Cym. ensifolium, Cym. kanran, Cym. sinense, Cym. sinense for. albo-jucundissimum, Cym. 'Crystal Cherry Angel', Cym. 'Anmitsu Hime'와 교배친화성을 보였으나 Cym. faberi, Cym. aloifolium, Cym. 'Husky Honey', Dendrobium chrysotoxum, Phalaenopsis spp.는 교배친화성을 나타내지 않았다. RAPD 분석결과, 춘란과 동일한 염색체수를 가진 Cym. faberi, Cym. aloifolium, Cym. 'Husky Honey'는 교배친화성을 보인 다른 공시 Cymbidium들보다 유전적인 근연관계가 멀었으며, 염색체수가 다른 Dendrobium chrysotoxum와 Phalaenopsis spp.는 상대적인 근연관계가 훨씬 먼 것으로 나타났다.

• 정보학연구
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• 제7권1호
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• pp.155-161
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• 2004

정상적인 기계의 동작동안, 부분방전측정이 고전압전동기 고정자권선을 모의하여 터빈제너레이터 분석기(TGA)를 이용하여 실행하였다. 모의한 고정자권선에 인가된 전압은 4.47[kV]와 6.67[kV]을 인가하였다. 모의 고정자권선을 갖는 전동기들은 단자함에 80[pF]용량성 커풀러를 설치하였다. 인가전압 위상각을 고려한 부분방전패턴의 경우 2차원, 3차원적으로 보여주었다. TGA는 정규화된 펄스수(NGN)DHK 부분방전펄스크기(Qm)으로서 두개의 정량화된량을 나타내었다. 결론적으로, 우리는 모의한 고정자권선에 대한 내부방전과 표면방전의 차이를 TGA을 이용하여 식별할 수 있었다. 고정자권선의 결함에 대한 특징을 추출하기 위한 기법으로서 이산웨이블렛 변환기법 및 주파수분석법을 이용하여 결함신호에 대한 특징을 추출할 수 있었다.

• Journal of Microbiology and Biotechnology
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• 제21권7호
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• pp.686-696
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• 2011

To deal with pathogens, plants have evolved sophisticated mechanisms including constitutive and induced defense mechanisms. Phytohormones play important roles in plant growth and development, as well as in the systemic response induced by beneficial and pathogen microorganisms. In this work, we identified an Aspergillus ustus isolate that promotes growth and induces developmental changes in Solanum tuberosum and Arabidopsis thaliana. A. ustus inoculation on A. thaliana and S. tuberosum roots induced an increase in shoot and root growth, and lateral root and root hair numbers. Assays performed on Arabidopsis lines to measure reporter gene expression of auxin-induced/ repressed or cell cycle controlled genes (DR5 and CycB1, respectively) showed enhanced GUS activity, when compared with mock-inoculated seedlings. To determine the contribution of phytohormone signaling pathways in the effect elicited by A. ustus, we evaluated the response of a collection of hormone mutants of Arabidopsis defective in auxin, ethylene, cytokinin, or abscisic acid signaling to the inoculation with this fungus. All mutant lines inoculated with A. ustus showed increased biomass production, suggesting that these genes are not required to respond to this fungus. Moreover, we demonstrated that A. ustus synthesizes auxins and gibberellins in liquid cultures. In addition, A. ustus induced systemic resistance against the necrotrophic fungus Botrytis cinerea and the hemibiotrophic bacterium Pseudomonas syringae DC3000, probably through the induction of the expression of salicylic acid, jasmonic acid/ethylene, and camalexin defense-related genes in Arabidopsis.

• 한국미생물·생명공학회지
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• 제48권2호
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• pp.185-192
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• 2020

The global carbon storage regulator (Csr) system is conserved in bacteria and functions as a regulator in the exponential and stationary phases of growth in batch culture. The Csr system plays a role in the central carbon metabolism, virulence, motility, resistance to oxidative stress, and biofilm formation. Although the Csr was extensively studied in Gram negative bacteria, it has been reported only in the control of motility in Bacillus subtilis among Gram positive bacteria. The goal of this study was to explore the role of the csrA gene of Bacillus licheniformis M2-7 on motility and the bacterial ability to use hydrocarbons as carbon source. We deleted the csrA gene of B. licheniformis M2-7 using the plasmid pCsr-L, harboring the spectinomycin cassette obtained from the plasmid pHP45-omega2. Mutants were grown on culture medium supplemented with 2% glucose or 0.1% gasoline and motility was assessed by electron microscopy. We observed that CsrA negatively regulates motility by controlling the expression of the hag gene and the synthesis of flagellin. Notably, we showed the ability of B. licheniformis to use gasoline as a unique carbon source. Our results demonstrated that CsrA is an indispensable regulator for the growth of B. licheniformis M2-7 on gasoline.