• Journal of the Korean Ceramic Society
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• v.47 no.2
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• pp.146-150
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• 2010

Because the plasma display panel has used red, green and blue(RGB) phosphors, it has suffer from two intrinsic problems; 1) the cell defect due to the lack of binding force between phosphor particles and 2) mis-discharge because of difference of electrical characteristics among RGB phosphors. In order to control the mechanical and electrical properties of RGB phosphors, frit with $ZnOB_2O_3-SiO_2-Al_2O_3$ system was added to RGB phosphor as sintering additive. The mechanical properties were increased by the amount of frit. The amount of frit under 5 wt% rarely affected dielectric constant. However, there was the limit of amount because of decreasing optical properties seriously; over 3 wt% in red, over 10 wt% in green and blue.

• Koreanishche Zeitschrift fur Deutsche Sprachwissenschaft
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• v.4
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• pp.155-179
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• 2001

Bei der vorliegenden Arbeit geht es in erster Linie urn die Frage, ob das Kooprationsprinzip und die Konversationsmaximen von Grice als universale Prinzipien angenommen werden $k\"{o}nnen$. Diese Fragestellung $erw\"{a}chst$ aus der Beobachtung, $da{\ss}$ Grices Prinzipien in manchen $F\"{a}llen$ des Sprachgebrauches nicht als universal geltend erscheinen. Solche $F\"{a}lle$ finden sich vor allem in der Werbesprache, beim geschlechtsunterschied1ich betrachteten Sprachgebrauch und im Bereich der sozio-kulturell bedingten Kontexte des Sprachgebrauchs. In derartigen $F\"{a}llen\;haben\;n\"{a}mlich$ die konkreten Zwecke des Sprachgebrauches $Priorit\"{a}t$ vor sprachtheoretischen Prinzipien. Die $\"{U}berlegungen$ der vorliegenden Abhandlung zeigen nun, dass wir es dabei im Einzelfall zwar mit sehr unterschiedlichen und fallspezifischen Spracherscheinungen zu tun haben, dass diese sich aber mit Hilfe von ethnolinguistischen Untersuchungen $schlie{\ss}lich$ dennoch als Parameter unter universalen Prinzipien $erkl\"{a}ren$ lassen.

• Journal of the Korean Ceramic Society
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• v.33 no.8
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• pp.909-914
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• 1996

In this research [RCOOH]-$\varepsilon$-Caprolactam-Montmorillonite was synthesized by reaction between Na-Mont-morillonite (10-Carboxy-n-decyl)dimethylethylammonium (=RCCOH) ion and $\varepsilon$-Caprolactame-Motmorillonite ob-tained was 3.62$\AA$ After heat treatment of this intercalations complex at 37$^{\circ}C$ in high vacuum for 12 h 24 h, 40 h and 90 h the basal spacing was reduced to 35.8$\AA$, 34.2, 17.5 $\AA$ and 16.6$\AA$ respectively. The calculated amount of free $\varepsilon$-caprolactame included int he intercaltions complex and that of $\varepsilon$-caprolactame which is interca-lated into the interlayer space of montomorillonite and still remained after heat treatment are 4.6~4.9 and 0.5 molecules per unite cell of montmorillonite respectively.

• Journal of the Korean Institute of Telematics and Electronics
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• v.22 no.4
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• pp.84-91
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• 1985

Acute angle etching Process of thermally grown silicon dioxide layer has been Proposed by depositing a thin layer of silicafilm on the thermal oxide layer. As densification temper-ature of silicafilm is varied from 175$^{\circ}C$ to 1,15$0^{\circ}C$, taper angles from 3$^{\circ}$ to 40$^{\circ}$ are ob-tained. Analytical model of the acute angle etching process has also been presented and etched profile equations of the silicon dioxide layer have been derived using format's principle of lease time. Etched profiles obtained from scanning electron microscope analysis show good agreement with the theoretically calculated profiles.

• The Bulletin of The Korean Astronomical Society
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• v.37 no.1
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• pp.60.2-60.2
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• 2012

Sco OB1의 핵심성단 NGC 6231를 호주 Siding Spring 천문대 1m 망원경을 사용하여 -40'${\times}$40' 영역을 관측하였다. 측광자료를 바탕으로 성단의 반경, 성간소광 법칙, 나이 및 초기질량함수를 결정하였다. 성단의 반지름은 구성원의 질량에 상관없이 거의 10' ($R{\approx}4.6pc$)으로 동일한 값을 보였다. 전체적으로는 정상적인 성간소광 법칙을 따르지만, 성단의 중심으로 갈수로 큰 $R_V$를 보여주며, 이는 과거에 있었을 것으로 추정되는 초신성의 효과로 추정된다. 질량이 큰 별과 X-선으로 선택된 성단의 전주계열성은 비슷한 평균나이를 보이지만 전주계열성은 훨씬 큰 나이분산을 보였다. 성단전체 초기질량함수의 기울기는 Salpeter 초기질량함수의 기울기와 매우 유사한 ${\Gamma}$=-1.1${\pm}$0.1을 보였으며, 성단 중심거리에 따른 초기질량함수의 기울기는 -1.0${\pm}$0.2에서 -1.8${\pm}$0.5까지 체계적으로 변화를 하였다. 질량이 큰 O형 별의 쌍성비율이 중심거리에 따른 변화를 보이지 않음에 비추어 볼 때, NGC 6231의 질량분리 양상은 역학적 진화의 결과가 아니라 원초적 질량분리현상으로 결론을 내릴 수 있다.

• The Bulletin of The Korean Astronomical Society
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• v.42 no.2
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• pp.89.3-89.3
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• 2017

Recent interferometric observations toward embedded protostellar systems show a clear offset between the emission peaks of N2D+ and N2H+. However, the chemical model that con-siders solely freeze-out and desorption from the dust grains could not reproduce the ob-servations. This difference between two spe-cies in the depletion zone might be caused by the reduction of the deuterated molecules, due to the reactions on grain surfaces. We present that the abundance offset between N2H+ and N2D+ can be explained if the chemi-cal model includes the surface chemistry, especially for the deuterated.

• Proceedings of the Korea Society of Poultry Science Conference
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• 2005.11a
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• pp.8-16
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• 2005

Leptin, the product of the ob gene, is primarily produced and released from adipocytes and acts on the hypothalamus to decrease food intake and increase energy expenditure. Defect in leptin or leptin receptors results in severe metabolic syndromes such as obesity, diabetes, and hypertension Evidence suggests that leptin plays beyond a satiety factor; in fact, it is a pluripotent player In regulation of numerous body functions. Although its actions have been relatively well studied in mammals scanty data are available in birds. In this article, recent advances in understanding of the roles of leptin in chicken physiology are reviewed with the focus on the effects on food intake, lipid metabolism, development and reproduction, and stress.

• Korean Journal of Organic Agriculture
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• v.4 no.1
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• pp.31-44
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• 1995

Im Rahmen der staatlichen Subvention zur Modernisierung auf glass kultivierten Sonderkulturbetrieben ist es notwendig, die Frage zu stellen, ob die investitionshilfe zweckvoll ist, und welched Betrieben die Betriebsinvestition wirtschaftlich sinnvoll sind. Insofern wird oekonomische Effizient mittels Investitionskalkulationsmethod(IKM) vor und nach der Betriebsinvestition zwischen organische und unorgannische produzierten Souderkulturbetrieben, besonders Salat produzierten Betrieben vergleich analysiert. wenn die Betriebe, die etwa mit 0.1㏊ Betriebsumfang galss salat unorganisch produzieren, nach der inverstition zur organisher Betrieb umgestellt werden, ist die Investitionen oekonomische sinvoller als kleiner Betriebe. Diese Ergebnisse resultieren aus grosse Unterschied zwischen organische und unorhanische Betriebertrag und Betriebskosten, insbesonder grosse Ersparnis der Arbeitskosten fuer organische Betriebe. Insofern muesste die staatliche Subvention zur Modernisierung in glass kultivierten Sonderkulturbetrieben auf organische Bewirtschaftung konzentriert werden.

• Journal for History of Mathematics
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• v.20 no.4
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• pp.105-122
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• 2007

In this paper we analyze various studies on $Erd\ddot{o}s-Mordell$ inequality(from a point O inside a given triangle ABC the perpendiculars OP, OQ, OR are drawn to its sides, then OA+OB+OC${\ge}$2(OP+OQ+OR)). We find out three trends of studies on $Erd\ddot{o}s-Mordell$ inequality: studies on various proof methods, studies on related means, studies on $Erd\ddot{o}s-Mordell$ type inequalities.

• 한국데이터정보과학회:학술대회논문집
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• 2006.04a
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• pp.235-240
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• 2006

Recently, in oriental medicine, the concerns of uterus myoma patients has been increased. We analyze the results of medical records for 1757 patients including 163 uterus myoma patients who visited D University Oriental Medical Center from March 2001 to December 2004. Thus, we invetigate the symptom scores which effect uterus myoma patients using logistic regression model.