• 한국정보통신학회논문지
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• 제2권3호
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• pp.335-341
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• 1998

본 논문에서는 CS-ACELP(Conjugate Structure Algebraic Code Excited Linear prediction) 음성부호화기의 실시간 구현에 관하여 논한다. CS-ACELP 알고리즘은 ITU-T에서 G.729로 표준화되었다. CS-ACELP 음성부호화 알고리즘의 실시간 구현은 16비트 정수형 DSP 칩을 사용하였다. 16비트 정수형 DSP 칩상에 구현하기 위하여, CS-ACELP 알고리즘의 정수형 시뮬레이션을 사용하였다. CS-ACELP 음성부호화기에 포함된 입출력기능과 통신 기능을 설명한다. DSP Evaluation board를 사용하여 CS-ACELP 음성부호화기를 개발하였고 IMT-2000 Test-bed를 사용하여 검증하였다.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2009년도 추계학술발표대회 논문집
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• pp.272-277
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• 2009

The purpose of this study wat to check CS service and to seek directions of development of CS service in apartment house by investigating the status of CS service and residents' satisfaction of CS service. This study indicates brand apartments provide a variety of CS service for the residents living in the apartment houses. In terms of perceptions and satisfaction of CS service, the study has found that there is growing recognition and needs of CS service and it is necessary to reinforce A/S service in aspect of CS service.

• 대한가정학회지
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• 제23권1호
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• pp.59-69
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• 1985

Consumer satisfaction/dissatisfaction is a concept which is receiving increased attention from consumers, public policy makers, and marketers alike. The literature in this field is still meager, has been growing rapidly byt with diversity of direction. The purpose of this study is to review the conceptualization and taxonomy of CS/D in consumer research. Three types of the basic process in a general theory of CS/D are suggested; system CS/D, enterprise CS/D and product-service CS/D. It is also classified into macro marketing system CS/D, micro marketing system CS/D and consuming mix CS/D. The conceptualization of CS/D begins with a basic model of how CS/D results from the individual product purchase experience of individual consumer. Basic CS/D models are classified into process model which contains experience, information search, prepurchase evaluation and comparison process variables and psychological model which is derived from cognitive dissonance theory. Theoretical and empirical foundations about expectation model are asimilatin, contrast, generalized negativity and assimilation contrast theories.

• 한국전기전자재료학회논문지
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• 제21권2호
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• pp.173-177
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• 2008

We have developed the transparent passivation layer for top emission organic light emitting diodes using CsCl thin film by the thermal evaporation method. The CsCl film was deposited on the Ca/Ag semitransparent cathode. The optical transmittance of Ca/ Ag/CsCl triple layer is higher than that of Ca/Ag double layer in the visible range. The device with a structure of glass/Ni/2-TNATA/a-NPD/Alq3:C545T/BCP/Alq3/Ca/Ag/CsCl results in higher efficiency than the device without CsCl passivation layer. The device without CsCl thin film shows a current efficiency of 7 cd/A, whereas the device passivated with CsCl layer shows an efficiency of 10 cd/A. This increase of efficiency isresulted from the increased optical extraction by the CsCl passivation layer.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.194-194
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• 2017

Camelina (Camelina sativa L.) is a potential bio-energy crop that has short life cycle about 90 days and contains high amount of unsaturated fatty acid which is adequate to bio-diesel production. Enhancing environmental stress tolerance is a main issue to increase not only crop productivity but also big mass production. CsRCI2s (Rare Cold Inducible 2) are cold and salt stress related protein that localized at plasma membrane (PM) and assume to be membrane potential regulation factor. These proteins can be divide into C-terminal tail (CsRCI2D/E/F/G) or no-tail group (CsRCI2A/B/C/H). However, function of CsRCI2s are less understood. In this study, physiological responses and functional characterization of CsRCI2s of Camelina under salt stress were analyzed. Full-length CsRCI2s (A/B/E/F) and CsPIP2;1 sequences were confirmed from Camelina genome browser. Physiological investigations were carried out using one- or four-week-old Camelina under NaCl stress with dose and time dependent manner. Transcriptional changes of CsRCI2A/B/E/F and CsPIP2;1 were determined using qRT-PCR in one-week-old Camelina seedlings treated with NaCl. Translational changes of CsRCI2E and CsPIP2;1 were confirmed with western-blot using the antibodies. Water transport activity and membrane potential measurement were observed by cRNA injected Xenopus laevis oocyte. As results, root growth rate and physiological parameters such as stomatal conductance, chlorophyll fluorescence, and electrolyte leakage showed significant inhibition in 100 and 150 mM NaCl. Transcriptional level of CsPIP2;1 did not changed but CsRCI2s were significantly increased by NaCl concentration, however, no-tail type CsRCI2A and CsRCI2B increased earlier than tail type CsRCI2E and CsRCI2F. Translational changes of CsPIP2;1 was constitutively maintained under NaCl stress. But, accumulation of CsRCI2E significantly increased by NaCl stress. CsPIP2;1 and CsRCI2A/B/E/F co-expressed Xenopus laevis oocyte showed decreased water transport activity as 61.84, 60.30, 62.91 and 76.51 % at CsRCI2A, CsRCI2B, CsRCI2E and CsRCI2F co-expression when compare with single expression of CsPIP2;1, respectively. Moreover, oocyte membrane potential was significantly hyperpolarized by co-expression of CsRCI2s. However, higher hyperpolarized level was observed in tail-type CsRCI2E and CsRCI2F than others, especially, CsRCI2E showed highest level. It means transport of $Na^+$ ion into cell is negatively regulated by expression of CsRCI2s, and, function of C-terminal tail is might be related with $Na^+$ ion influx. In conclusion, accumulation of NaCl-induced CsRCI2 proteins are related with $Na^+$ ion exclusion and prevent water loss by CsPIP2;1 under NaCl stress.

• Parasites, Hosts and Diseases
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• 제32권1호
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• pp.13-18
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• 1994

간흡충은 담관내에 기생하면서 만성적 감염의 결과 최종적으로 담관암을 유발시키는 것으로 알려져 왔다. 실험동물에서 간흡충의 감염만으로는 담관암이 발생하지 않으며, 어떠한 외적 혹은 내적 발암성의 물질들과 병합하여 담관암이 형성하는 것으로 보고된 바 있다 본 실험은 햄스터에서 간흡충의 감염과 dimethylnitrosamine(DMN)의 병합작용으로 담관암이 발생되었다는 모델을 이용하여 "발암기전의 2단계이론" 상에서 간흡충의 역할을 밝혀보고자 하였다. 총 90마리의 햄스터를 15 마리씩 6군으로 나누었다. $DMN{\;}{\rightarrow}{\;}CS$군의 햄스터에서는 먼저 15 ppm의 DMN을 4주 동안 음수 투여하고, 1주 후에 간흡충을 15마리씩 인공감염시켰다. 그리고 5주 후에 piaziquantel로 간흡충을 치료하였다 $CS{\;}{\rightarrow}{\;}DMN$군에서는 먼저 간홉충을 감염시키고 5주 후에 praziquantel로 치료하였으며 1주 후부터 DMN을 4주동안 투여하였다. DMN + CS군에서는 DMN과 간흠충을 동시에 투여하였으며 4주 후에는 DMN을 제거하였다. DMN군과 CS군은 각각 DMN과 간흡충만을 투여하였고 대조군은 아무것도 투여하지 않았다. 모든 실험동물은 13주 후에 부검하였으며 조직병리학적인 방법으로 간장을 검경하여 진단하였다. 실험결과 담관암은 $DMN{\;}{\rightarrow}{\;}CS$군에서 3마리, DMN + CS군에서 11마리가 발생하였으며 나머지 군들에서는 암이 발생하지 않았다. 본 실험으로 2단계 발암기 전상에서 간흡충은 담관암발생을 촉진하는 효과를 보였음을 알수 있었다.

• 한국응용약물학회:학술대회논문집
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• 한국응용약물학회 1996년도 춘계학술대회
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• pp.238-238
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• 1996

각종 동물 및 인체 신장 유래 DHP-I에 의한 DA-1131, imipenem(IPM) 및 meropenem(MEPM)의 속도 상수를 측정한 결과, DA-1131은 동물종에 관계없이 가장 안정성이 큰 결과를 나타내었고, 인체 DHP-I에 대한 Vmax/Km 값이 IPM의 21.9%로 관찰되어 IPM보다 하위 기질인 것으로 확인되었다. DA-1131, IPM/CS 및 MEPM/CS의 20mg/kg투여 후의 혈중농도 반감기(T$_{1}$2/)는 각각 11.4분, 8.9분, 10.3분이었으며, 1$\mu\textrm{g}$/$m\ell$ 이상의 혈중농도룰 유지하는 시간은 66.6 분, 55.9 분, 63.1 분이었다. DA-1131, DA-l131/CS, IPM/CS, MEPM 및 MEPM/CS의 40 mg/kg 투여 후 24시간 동안의 뇨중 배설율은 57.9 %, 61.3%, 22.6 %, 11.3% 및 65.9%이었으며, 각 약물을 40 mg/kg 투여 15분 후 DA-ll3l의 폐중 농도는 11.2$\mu\textrm{g}$/g으로 DA-l131/CS, IPM/CS 및 MEPM/CS와 비슷한 결과를 나타내었으며 T/P ratio도 DA-1131, DA-l131/CS, IPM/CS 와 MEPM/CS 투여군에서 거의 동일한 것으로 확인되었다. 신장중 농도는 DA-1131 과 DA-l131/CS의 경우 29.l$\mu\textrm{g}$/g 및 34.2$\mu\textrm{g}$/g으로 큰 차이를 나타내지 않았으나, IPM/CS, MEPM 및 MEPM/CS 투여군에 비하여는 높은 결과로 나타났고 T/P ratio도 DA-1131과 DA-l131/CS 투여군이 IPM/CS, MEPM 및 MEPM/CS 투여군보다 놓은 것으로 확인되었다.

• 대한전자공학회논문지SD
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• 제37권12호
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• pp.18-23
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• 2000

본 논문에서는 유리기판 위에 공액고분자 물질인 MEH-PPV를 스핀 코팅한 후 Al 전극 사이에 초박막의 CsF층을 진공증착으로 삽입한 유기발광소자를 제안하였다. 이러한 구조에서 CsF층은 음극을 통해 주입된 전자들이 원활히 발광층으로 전송되어 유기발광소자의 발광효율을 증대시켰다. 또한 CsF층의 두께변화를 $2{\AA},\;4{\AA},\;8{\AA},\;10{\AA},\;20{\AA},\;50{\AA},\;75{\AA}$으로 변화를 주어 전류- 전압- 발광 특성을 조사하였다. 그리고 CsF/Al와 CsF/Au 및 Cs/Au 전극을 각각 진공증착하여 비교하였다. CsF층 두께가 $4{\AA}$에서 양자효율이 0.6%로 최대값을 나타냈고 $8{\AA}$ 이상에선 효율이 감소하였지만 CsF층이 없는 순수한 Al전극층에서 효율이 0.01%인 것에 비해 높은 양자효율 값을 유지하였다.

• Journal of Ginseng Research
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• 제27권3호
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• pp.110-114
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• 2003

Objective; Antistress effect of Korean red ginseng (RG) on postmenopausal women with severe climacteric syndrome (CS) were evaluated from the viewpoint of traditional KAMPO-medicine and Western medicine. Methods; All patients with CS were treated with daily oral administration of 6g RG for 30 days. Nine patients with CS were evaluated with the use of diagnostic scores for KI-deficiency (deficiency of vital energy) and OKETSU (blood stagnation) syndrome from the viewpoint of KAMPO-medicine. In the same patients with CS, peripheral blood levels of ${\beta}$-endorphin and total plasminogen activator inhibitor-1 (t-PAI-1) were measured before and after treatment with RG. In another group, 12 patients with CS, psychological test using CMI, STAI and SDS were performed from the viewpoint of Western medicine. Stress related hormones, such as ACTH, cortisol and DHEA-S in those 12 patients with CS were also measured before and after treatment with RG. Results; KI-deficiency score and OKETSU score in patients with CS were significantly (p<0.001) higher than those in patients without CS. After treatment with RG, both scores were markedly (p<0.001) decreased compared to before treatment with RG. ${\beta}$-endorphin levels in patients with CS were significantly (p<0.05) higher than those in patients without CS. Total PAI-levels in patients with CS were increased before treatment with RG. No significant difference, however, were observed between patients with and without CS. After treatment with RG, both levels of ${\beta}$-endorphin and total PAI-1 in patients with CS were significantly (p<0.001 and p<0.05, respectively) decreased compared to before treatment with RG. CMI and STAI scores in patients with CS were significantly (p<0.05) higher than those in patients without CS. SDS scores in patients with CS were also markedly (p<0.00l) higher than in those without CS. After treatment with RG, all scores decreased within normal range. DHEA-S levels in patients with CS were about a half of those without CS. Consequently, cortisol/DHEA-S (C/D) ratio was significantly(p<0.001) higher in patients with CS than in those without CS. Although the decreased DHEA-S levels were not restored to the levels in patients without CS, the C/D ratio decreased significantly (p<0.05) after treatment with RG. Conclusion; Reinforcement of vital energy and improvement of stagnant blood circulations by oral administration of RG were elucidated from the viewpoint of traditional KAMPO-medicine. From the viewpoint of Western medicine, effect of RG on postmenopsusal women with CS seemed to be brought about in part by not only an improvement of psychoneuroendocrine dysfunctions but also an amelioration of blood coagulation systems.

• 방사성폐기물학회지
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• 제13권3호
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• pp.171-180
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• 2015

본 연구는 고방사성해수폐액에 함유되어 있는 주요 고방사성 핵종인 Cs을 제거하기 위하여 IE911 (crystalline silicotitanate)에 의한 흡착 제거를 수행하였다. Cs의 효율적 흡착제거 및 2차 고체폐기물의 발생량을 최소화하기 위하여 IE911-Cs 흡착은 m/V (흡착제 질량/용액 부피) 비=2.5 g/L, 흡착시간은 1 시간 정도가 효과적이었다. 이때 Cs은 약 99%, Sr은 5% 이하가 각각 흡착되었다. 또한 IE911-Cs 흡착은 Langmuir 등온식 및 유사 (pseudo) 2차 속도 식으로 표현할 수 있으며, 흡착속도상수(k₂)는 Cs의 초기농도 및 입자크기 증가에 따라 감소하는데 반하여, m/V 비, 온도 및 교반속도 증가에 따라서는 증가하고 있다. IE911-Cs 흡착의 활성화에너지는 약 79.9 kJ/mol 로, IE911-Cs 흡착이 보다 강력한 결합 형태를 이룬 화학적 흡착임을 보여주고 있다. 그리고 음수 값의 Gibbs 자유에너지 및 엔탈피는 IE911-Cs의 흡착반응이 정반응의 발열반응이고, 저온에서 반응이 상대적으로 활발함을 의미하며, 음수 값의 엔트로피는 흡착된 Cs이 IE911에 균일하게 정렬되어 있음을 나타낸다.