• 한국육종학회지
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• 제40권4호
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• pp.484-489
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• 2008

"영양보리"는 총체생산성이 높으며 사료 영양가가 우수한 보리품종을 개발하기 위하여 키가 크고 내습성이 강한 부농을 모본으로 하고 조숙 계통인 밀양55호를 부본으로 하여 1992년도 영남농업연구소에서 인공 교배하였다. 1993년 $F_1$을 양성한 후 1994년부터 1995년까지 집단육종법으로 $F_2$, $F_3$ 세대를 전개하였고, 1996년부터 1997년까지 계통육종법으로 $F_4$, $F_5$ 계통을 전개하여 초형 및 내병성이 우수한 YB3882-B-B-B-17-1 계통을 선발하였다. 1998년부터 1999년까지 2년간 생산력검정 예비시험과 생산력 검정 본시험을 실시한 결과, 직립이며 총체수량성이 높고 내습성이 강하여 총체 사료용 보리로서 우수성이 인정되어 "밀양111호"로 계통명을 부여하고 2000년부터 2002년까지 3년간 지역적응시험을 실시하였다. 그 결과, 수량성이 높고 습해 및 호위축병에 강한 계통으로 입증되어 2002년 9월 농작물 직무육성품종선정심의회에서 신품종으로 선정됨과 동시에 "영양"으로 명명하여 등록하고 농가에 보급하게 되었다. 1. 영양보리는 올보리에 비해 출수기는 2000년부터 2002년까지 3년동안 수원, 아산, 대전에서 평균 5월 1일로 올보리보다 4일 정도 늦었으며 성숙기는 수원에서 평균 6월 6일로 올보리 보다 1일정도 늦은 중만생종이다(표2, 3). 2. 영양보리는 초장은 83 cm로 올보리 보다 2 cm크며, $m^2$ 당 경수는 637개로 올보리에 비해 120개 적었으며, 엽신/줄기+엽신의 비율과 이삭/총체 비율은 올보리와 비슷한 하였다. 3. 내습성과 도복 정도는 올보리와 비슷하였으나 연천에서 실시한 내한성은 올보리 보다 약 하였으며 호위축병 저항성은 올보리 보다 강하고, 흰가루병 저항성은 올보리와 같았다. 4. 영양보리의 건물수량은 11.7톤/ha으로 올보리보다 18% 증수하였으며, 종실수량은 6.32톤/ha로 올보리 보다 5% 증수한 다수성이다. 5. 영양보리의 탈립율이 42%로 올보리에 비해 낮았고. 조단백질 함량, ADF, NDF는 올보리와 비슷하며, TDN비율은 올보리에 비하여 다소 낮고 사일레지 품질은 비슷하였다.

• 약학회지
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• 제46권3호
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• pp.168-173
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• 2002

The physicochemical properties of aloesin, which has been recently found to reduce renal toxicity induced by cis-platin, were studied including solubility, partition coefficient ( $P_{c}$ ), osmolality, and stability. The solubility of aloesin was about 500 mg/mι, and the $P_{c}$ value for n-octanol/water was 1.01 $\pm$ 0.03. The degradation of aloesin followed the pseudo-first-order kinetics and was dependent on temperature, pH and ionic strength. From the pH-rate profile, the optimal pH was found to be 2.0~3.0. Some metal ions increased the degradation rate in the rank order of M $n^{2+}$ ＞ F $e^{3+}$ ＞ C $u^{2+}$ ＞ F $e^{2+}$. On the other hand, other metal ions such as B $i^{3+}$, $Ba^{2+}$, Z $n^{2+}$, N $i^{2+}$, $Co^{2+}$ and $Mg^{2+}$ did not show the unfavorable effects. After autoclaving, aloesin contents remaining were 81.8~98.8% of initial concentrations depending on pH. The most stable pH was 3.98 in the autoclaving. Osmolality increased linearly as concentration increased.sed.creased.sed.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2008년도 추계학술대회 논문집 Vol.21
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• pp.200-200
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• 2008

This paper reports on electrical characterization by IDC pattern using BST$(Ba_{0.5}Sr_{0.5}TiO_3)$ thin film. BST thin films have been deposited on $Al_2O_3$ Substrates by Nd-YAG pulsed laser deposition with a 355nm wavelength at $700^{\circ}C$. The post deposition annealing at $750^{\circ}C$ in flowing $O_2$ atmosphere for I hours. The capacitance of IDC patterns have been measured from 1 to 10 GHz as a function fo electric field (${\pm}40$ KV/cm) at room temperature using interdiigitated Au electrodes deposited on top of BST. The IDC patterns have three type of fingers number. For the finger paris was increased onto $Al_2O_3$, the capacitance increased. The capacitance of 5 pairs finger was 0.3pF and 10 pairs finger was 0.9pF.

• Natural Product Sciences
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• 제29권1호
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• pp.38-41
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• 2023

Two xanthones and 4-phenylcoumarins were isolated from the twigs of Mesua beccariana (Baill.) Kosterm. Among them, one new xanthone, beccarianin A (1), along with 7-isoprenyl-jacareubin (2), mammea A/AA cyclo F (3), and mammea A/BA cyclo F (4). These structures were determined by spectrometric and spectroscopic methods, HRESIMS data, NMR, and UV spectra. Two xanthones (1-2) and two 4-phenylcoumarins (3-4) were evaluated for their cytotoxic effect on the HeLa cells. Compound 1 showed active activity (IC₅₀ = 8.2 µM), and compounds 3-4 showed moderate activity (IC₅₀ = 12.3 and 15.6 µM, respectively).

• Progress in Superconductivity
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• 제4권1호
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• pp.10-13
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• 2002

We report the effect of Ca doping in $YBa_2Cu_3O_{7-\delta}$ (YBCO) thin films grown on the Rolling- Assisted, Biaxially Textured Substrates (RABiTS) with the architecture of $CeO_2/YSZ/CeO_2/Ni$. Critical currents of bilayer and trilayer structures of $YBCO/Y_{0.7}Ca_{0.3}Ba_2Cu_3O_{7-\delta}$/(YCaBCO) as well as undoped YBCO for comparison have been measured in a wide range of temperatures and fields. For $6-8^{\circ}$ grain boundaries, 30% Ca-doping in bilayer structure enhances $J_c$ as high as 35%. The enhancement is larger at low temperatures and at magnetic fields. On the other hand, 30% Ca-doping in trilayer structure reduces $J_c$ as high as 60%. Combined with slightly lower $T_c$, this indicates that Ca is overdoped in this structure and degrades GBs.

• 한국세라믹학회지
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• 제43권2호
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• pp.98-105
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• 2006

YBCO film was synthesized by using a new approach to the TFA-MOD method. In the fabrication process, $Y_2Ba_1Cu_1O_x\;and\;Ba_3Cu_5O_8$ powders were used as precursors (the so called '211 process'), instead of Y-, Ba-, and Cu-based acetates, and dissolved in trifluoroacetic acid followed by calcining and firing heat treatment. Consequently, we successfully fabricated YBCO film and evaluated the phase formation, texture evolution, and critical properties as a function of the calcining and firing temperature and humidity, in order to explore its possible application in coated conductor fabrication. The films were calcined at $430-460^{\circ}C$ and then fired at $750-800^{\circ}C\;in\;a\;0-20\%$ humidified $Ar-O_2$ atmosphere. We observed that $BaF_2$ phase was effectively reduced and that a sharp and strong biaxial texture formed under humidified atmosphere leading to increased critical properties. In addition, we found that the microstructure varied significantly with the firing temperature: the grain grew further, the film became denser, and the degree of texture and phase purity varied as the firing temperature increased. For the film fired at $775^{\circ}C$ after calcining at $460^{\circ}C$, the critical current was obtained to be 39 A/cm-width (corresponding critical current density is $2.0\;MA/cm^2$ which was probably attributed to such factors as the enhanced phase purity and out-of-plane texture, the moderate film density and grain size, and crack-free surface.

• Environmental Sciences Bulletin of The Korean Environmental Sciences Society
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• 제2권1호
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• pp.57-68
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• 1998

Polycyclic aromatic hydrocarbons (PAMs) are ubiquitous contaminants in marine environments. PAMs enter estuarine and nearshore marine environment via several routes such as combustion of fossil fuels, domestic and industrial effluents and oil spills. PAHs have been the focus of numerous studies in the world because they are potentially carcinogenic, mutagenic, and teratogenic to aquatic organisms and humans from consuming contaminated food. However, one can hardly find any available data on PAM content in marine organisms in Korea. The present study was carried out in order to determine PAM content in oysters from the intertidal and subtidal zones of Chinhae Bay, which is located in near urban communities and an industrial complex, and the bay is considered to be a major repositories of PAHs. 16 PAHs were analyzed by High Performance Liquid Chromatography (HPLC) with uv/vis and fluorescence detectors in oysters: they are naphthalene (NPTHL), acenaphthylene (ANCPL), acenaphthylene (ACNPN), fluorene (FLURN), phenanthrene (PHEN), anthracene (ANTHR), fluoranthene (FLRTH), pyrene (PYR), benzo(a)anthracene (BaA), chrysene (CHRY), benzo(b)fluoranthene (BbF), benzo(k)fluoranthene (BkF), benzo(a)pyrene (BaP), dibenz(a,h)anthracene(DahA), benzo(g,h,i)peryne (BghiP) and indeno(1,2,3,-cd)pyrene (I123cdP). The PAM contents in oysters from the intertidal and subtidal zones of Chinhae Bay ranged from < 0.1 to 992.0 ug/kg (mean $69.8\pm9.8$ ug/kg).

• 한국환경과학회지
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• 제2권1호
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• pp.57-68
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• 1993

Polycyclic aromatic hydrocarbons (PAMs) are ubiquitous contaminants in marine environments. PAHs enter estuarine and nearshore marine environment via several routes such as combustion of fossil fuels, domestic and industrial effluents and oil spills PAHs have been the focus of numerous studies in the world because they owe potentially carcinogenic, mutagenic, and teratogenic to aquatic organisms and humans from consuming contaminated food. However, one can hardly find any available data on PAM content in marine organisms in Korea. The present study was carried out in order to determine PAH content in oysters from the intertidal and subtidal zones of Chinhae Bay, which is located in near urban communities and an industrial complex, and the bay is considered to be a major repositories of PAHs. 16 PAHs were analyzed by High Performance Liquid Chromatography (HPLC) with uv/vis and fluorescence detectors in oysters: they are naphthalene (NPTHL), acenaphthylene (ANCPL), acenaphthene (ACNPN), fluorene (FLURN), phenanthrene (PKEN), anthracene (ANTHR), fluoranthene (FLRTH), pyrene (PYRf), benzo(a)anthracene (BaA), chrysene (CHRY), benzo(b)- fluoranthene (BbF), benzo(k)fluoranthene (BkF), benzo(a)pyrene (BaP), dibenz(a, h)anthracene (DhA), benzo(g, h, i)peryne (Bghip) and indeno(1, 2, 3, -cd)pyrene (I123cdP). The PAH contents in oysters from the intertidal and subtidal zones of Chinhae Bay ranged from < 0.1 to 992.0 $\mu\textrm{g}$/kg (mean 69.8 $\pm$ 9.8 $\mu\textrm{g}$/kg). Key words . polycyclic aromatic hydrocarbon, high performance liquid chromatography, oyster, Chinhae Bay.

• 한국약용작물학회지
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• 제14권1호
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• pp.31-35
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• 2006

Agrobacterium rhizogenes ATCC15834에 의해 형질전환된 지황 (Rehmannia glutinosa)의 모상근으로부터 유식물체를 재분화 시키기 위한 최적 조건을 탐색하였다. 모상근 절편으로부터 유식물체의 재분화는 0.5 mg/l BA가 첨가된 SH배지 (3% sucrose, pH 5.8)에서 배양 5주 후 이루어졌다. 이와 같은 유식물체는 식물생장조절물질이 포함되지 않은 기본배지로 옮겼을 때 발근이 이루어졌다. 형질전환된 모상근 유래 식물체는 잎으로부터 직접 재분화된 식물체와 비교했을 때 잎이 오므라드는 경향을 보였고 줄기는 절간이 짧았으며, 뿌리는 가늘고 수량이 많은 특징을 보였다. 생체량 비교에서 형질전환식물체는 식물 하나의 무게가 1.28 g (생중량)으로 대조구인 잎 유래 재분화식물체 (0.53 g)에 비해 높았으며, 지표물질인 catalpol의 함량에 있어서도 차이를 보여주었다.

• Archives of Pharmacal Research
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• 제13권3호
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• pp.233-239
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• 1990

The efect of acute renal failure (ARF) on the pharmacokinetics o sulfobromophthalein (BSP) was investigated in order to elucidate if renal failure modifies the hepatic metabolism of drugs. ARF was induced by intravenous (iv) injection of uranyl nitrate (UN) to rats (5 mg/kg) five days before the experiment. Area under the plasma concentration-time curve (AUC)of BSP after portal vein (pv) injection increased by 2-fold and total body clearance ($CL_1$) decreased one half (p <0.01) in UN-induced ARF (UN-ARF) rate compared to the control rats. But the plasma disappearance of BSP after iv injection did not differ significantly between control and UN-ARF rats. Since BSP is excreted via the liver, $CL_1$ represented the approximate hepatic clearance of BSP. Therefore, the decrease in $CL_1$ represented the approximate hepatic clearance of BSP. Therefore, the decrease in $CL_1$ represents a decrease in hepatic intrinsic clearance ($CL_{int}$) for BSP since plasma free fraction ($f_p$) of BSP was not affected by UN-ARF. The content of hepatic cytoplasmic Y-protein, which catalyzes BSP-glutathione conjugation and limits the trasfer of BSP from blood to bile, increased significantly (p < 0.01), however its binding activity (BA) for BSP was decreased significantly (p <0.01) by UN-ARF. The decrease in $CL_{int}$might have some correlation with the changed characteristics of hepatic Y-protein, specifically its decreased BA for BSP.