• Proceedings of the Zoological Society Korea Conference
• /
• 2003.08a
• /
• pp.202.4-202
• /
• 2003

No Abstract, See Full Text

• Journal of Korean Society of Rural Planning
• /
• v.10 no.2 s.23
• /
• pp.25-34
• /
• 2004

The objectives of this study were to compare rural development of Korea and EU. According to its traits the peroids of rural development of Korea can be divided into low periods. According to its memberships and traits the periods of rural development of EU can be divided into low periods. There are many similarities between Korea and EU in agricultural situation and rural development. EU introduced multifunctionality of agriculture in 1980s and adopt strong policy to support that in 1990s. And EU made a effort sustainable rural development, integrated rural development and balanced regional development. Recently Korea not only maintain agricultural expanisionism but also pay attention to multifunctionality of agriculture. But rural development of Korea still in the stage of physical planning and agricultural expanisionism. So it leaves much room for improvement to rural development of Korea in rural development regulation, unifying theme, detail planning, integration among policies, balanced regional development, etc.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2009.10a
• /
• pp.1303-1304
• /
• 2009

In order to apply to the White light emitting diodes (WLEDs), The $Y_2SiO_5:Eu^{3+}$ as red phosphor was synthesized by solid state reaction method. The highest emission of $Y_2SiO_5:Eu^{3+}$ was shown when the $Eu^{3+}$ concentration was 0.02. A single phase was observed from X-ray diffraction (XRD) analysis of synthesized samples and secondary phase wasn't found.

• Molecules and Cells
• /
• v.23 no.3
• /
• pp.405-409
• /
• 2007

A putative type-I chalcone isomerase (CHI) cDNA clone EuNOD-CHI was previously isolated from the root nodule of Elaeagnus umbellata [Kim et al. (2003)]. To see if it encodes a functional CHI, we ectopically overexpressed it in the Arabidopsis (Arabidopsis thaliana) transparent testa 5 (tt5) mutant, which is defective in naringenin production and has yellow seeds due to proanthocyanidin deficiency. Ectopic overexpression of EuNOD-CHI resulted in recovery of normal seed coat color. Naringenin produced by CHI from naringenin chalcone was detected in the transgenic lines like in the wild-type, whereas it was absent from the tt5 mutant. We conclude that EuNOD-CHI encodes a functional type-I CHI. In situ hybridization revealed that EuNOD-CHI expression is localized to the infected cells of the fixation zone in root nodules.

• Korea Trade Review
• /
• v.47 no.6
• /
• pp.355-375
• /
• 2022

In this study, LCA based on EU PAS 2050 and Product Category Rules (PCR) was conducted for steel products with the highest proportion of Korea's exports to the EU among the carbon border adjustment items that were passed by the EU Parliament in June and applied to imports from 2025. Carbon emissions were calculated by (ISO 14040) analysis. As a result of the analysis, the total emission is 394,000 tons, and when converted to the EU ETS weekly price, it is 39,000.000 euros, which is about 5% of the export amount of 734 million dollars. This is the same effect as a 5% tariff increase. This study applies international standards in calculating the carbon footprint and provides information that is closest to the expected amount to be imposed in the future EU CBAM, providing the effect of enabling exporters to establish trade strategies and international competitiveness measures in advance.

• International Area Studies Review
• /
• v.12 no.2
• /
• pp.297-324
• /
• 2008

As greenhouse gas (hereinafter GHGs) emissions have been increasing, the world's climate is also rapidly changed. $CO_2$ is the most important artificial GHGs and the annual emissions amount was increased approximately 80% between 1970 and 2004. After suggesting Kyoto Protocol, EU is the second largest emissions embodiment in the world, set the emissions trading scheme (hereinafter EU-ETS) and is trying to reduce $CO_2$ emissions aggressively. This study focuses on the EU-ETS and EU-ETS market to examine their emissions reduction policy and review the result of their efforts. EU-ETS which is composed of 2-step phases had already completed the first phase and is running on the second phase in 2008. Up to now EU-ETS has been proceeding successfully and the amount of $CO_2$ emissions has been decreased. To prepare for their coming events, countries excluded from Kyoto Protocol fulfillment need to have some implication from EU and have to make up their own plans.

• Bulletin of the Korean Chemical Society
• /
• v.30 no.10
• /
• pp.2213-2216
• /
• 2009

A novel carbazole functionalized bis-$\beta$-diketone type organic ligand, 1,1′-(2,6-bispyridyl)bis-3-(9-ethylcarbazole- 3-yl)-1,3-propanedione ($H_2L$) and its corresponding lanthanide complexes $Eu_2(L)_3\;and\;Tb_2(L)_3$ were successfully prepared. The ligand and complexes were characterized in detail based on FT-IR spectra, $^1H$ NMR and elemental analysis. The observed UV-Vis absorption and photoluminescence properties of the complexes were investigated, it shows that the Eu(III) and Tb(III) ions can be sensitized efficiently by the ligand ($H_2L$) to some extent, in particular, the complex $Tb_2(L)_3$ exhibits a more excellent luminescence property than the Eu(III) complex. Meanwhile, the introduction of the carbazole moiety can enlarge the $\Pi$-conjugated system of the ligand and enhance the luminescent intensity of the complexes. The results show that the complexes would be used as excellent luminescent materials.

• Journal of Ceramic Processing Research
• /
• v.13 no.spc1
• /
• pp.6-9
• /
• 2012

Eu3+-doped RE2O3 (RE = Gd, Y and La) phosphors were prepared by solvothermal reaction method and their crystalline structure, phase transformation and surface morphologies were investigated by using X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM). The obtained RE2O3:Eu3+ phosphors are nanocrystalline-sized. The luminescence properties of Eu3+ ions in different host materials, namely, Gd2O3, Y2O3 and La2O3 have been investigated. PACS number: 32.50.+d, 78.55.-m, 81.40.Tv.

• Journal of the Korean Ceramic Society
• /
• v.54 no.2
• /
• pp.96-101
• /
• 2017

In this article, pure $m-LaVO_4:Eu^{3+}$ and $t-LaVO_4:Eu^{3+}$ nanocrystals were prepared by an EG-assisted hydrothermal method with regular shapes. A series of controlled experiments showed that the pH value of a mixed solution, the volume ratio of $EG/H_2O$ and the dosage of the doped $Eu^{3+}$ all had an important effect on the sizes and shapes of the final products. Furthermore, the constitutional unit of the products changed from 0D to 2D with an increase in the EG dosage. The PL results showed that $t-LaVO_4$ doped with $Eu^{3+}$ ions had better luminescence properties than $m-LaVO_4$ due to its special structure. All of these results not only expand our understanding of the luminescence properties of lanthanide orthovanadates, but they also elucidate the principles of the crystal growth.

• Korean Journal of Radiology
• /
• v.2 no.1
• /
• pp.14-20
• /
• 2001

Objective: To compare the usefulness of unenhanced spiral CT (UCT) with that of excretory urography (EU) in patients with acute flank pain. Materials and Methods: Thirty patients presenting with acute flank pain underwent both UCT and EU. Both techniques were used to determine the presence, size, and location of urinary stone, and the presence or absence of secondary signs was also evaluated. The existence of ureteral stone was confirmed by its removal or spontaneous passage during follow-up. The absence of a stone was determined on the basis of the clinical and radiological evidence. Results: Twenty-one of the 30 patients had one or more ureteral stones and nine had no stone. CT depicted 22 of 23 calculi in the 21 patients with a stone, and no calculus in all nine without a stone. The sensitivity and specificity of UCT were 96% and 100%, respectively. EU disclosed 14 calculi in the 21 patients with a stone and no calculus in eight of the nine without a stone. UCT and EU demonstrated secondary signs of ureterolithiasis in 15 and 17 patients, respectively. Conclusion: For the evaluation of patients with acute flank pain, UCT is an excellent modality with high sensitivity and specificity. In near future it may replace EU.