http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Kim, Un-Soo,Kim, Hwa-Young Korean Institute of Navigation and Port Research 2019 한국항해항만학회지 Vol.43 No.2
The maritime industry has emerged as a new growth engine. The municipalities that own the port are trying to add value through the maritime industry. Overseas port cities are also creating maritime industrial clusters to generate profits and strengthen competitiveness. Therefore, it is very important to understand the comparative status of the domestic maritime industry by region. Based on this analysis, it is possible to establish maritime industrial clusters and strategies for integration. This study analyzed the structure of the maritime industry located in Jeollanamdo province, the southwestern part of Korea. Through the analysis of existing literature, the maritime industry was reclassified into 5 major categories, 21 subcategories, and 84 subcategories. Based on the reclassified maritime industry, the analysis of the Jeollanamdo province maritime industry was based on applying the location quotient and the shift-share analysis. As a result of analyzing the geographical location of Jeollanamdo province, other industries showed the highest value of 2.790, followed by fisheries (2.227), shipbuilding industry (1.164) and marine tourism industry (0.554). The growth effect of the maritime industry in Jeollanamdo province was 35,323 people, and net growth effect excluding national growth effect was 11,945 people. In particular, the net growth effect of the shipbuilding industry was the highest at 11,320, followed by shipping logistics (6,371) and marine tourism (1,529). On the other hand, there was no net growth effect in fisheries. The results of this study can be used as basic data for the construction of the maritime industrial cluster for Jellanamdo province in the future.
Kim, Jung-Woon,Kim, Kun-Ji,Park, Soo-Yeon,Jeong, Kwang-Un,Lee, Myong-Hoon Korean Chemical Society 2012 Bulletin of the Korean Chemical Society Vol.33 No.9
Fullerene/polystyrene ($C_{60}$/PS) nano particle was prepared by using emulsion polymerization. Styrene and fullerene were emulsified in aqueous media in the presence of poly(N-vinyl pyridine) as an emulsion stabilizer, and polymerization was initiated by water soluble radical initiator, potassium persulfate. The obtained nano particles have an average diameter in the range of 400-500 nm. The fullerene contents in the nano particle can be controlled up to 15 wt % by varying the feed ratio, which was confirmed by themogravimetric analysis (TGA) and elemental analysis (EA). The structure and morphologies of the $C_{60}$/PS nano particles were examined by various analytical techniques such as dynamic light scattering (DLS), scanning electron microscope (SEM), transmission electron microscope (TEM), electron diffraction (ED) pattern, X-ray powder diffraction (XRD), and UV spectroscopy. Unlike conventional $C_{60}$/PS particles initiated by organic free radical initiators, in which the fullerene is copolymerized forming a covalent bond with styrene monomer, the prepared $C_{60}$/PS nano particles contain pristine fullerene as secondary particles homogeneously distributed in the polystyrene matrix.
Development of a Method for Optimal Fuel Distribution in 1-D Cylindrical Geometry
Kim, Yun-Ho,Oh, Soo-Youl,Kim, Jung-Hwan,Hong, Seung-Ryong,Lee, Un-Chul Korean Nuclear Society 1988 Nuclear Engineering and Technology Vol.20 No.1
Previously determining the fuel loading pattern is based on the trial and error method. For a candidate pattern, the core analysis is performed and the pattern is examined whether it satisfies the imposed constraints such as the power peaking or not. The pattern, then, is revised by the shuffling of assemblies and the revision is repeated until all of the conditions are met. This method unavoidably requires many iterative diffusion calculations, computing times and accumulated experiences. To overcome these disadvantages, a new method which is called backward diffusion calculation is introduced. If the most desirable power distribution is already known, the optimal loading pattern can be obtained by solving the backward diffusion equation with simple calculation. In this study, the basic equation for the backward diffusion calculation is derived and the optimal power and fuel distributions are searched in one-dimensional cylindrical geometry by using the proposed method. In addition, the basis to determine the optimal power and fuel distributions is suggested for the real core geometry.
Virus Incidence of Sweet Potato in Korea from 2011 to 2014
Kim, Jaedeok,Yang, Jung wook,Kwak, Hae-Ryun,Kim, Mi-Kyeong,Seo, Jang-Kyun,Chung, Mi-Nam,Lee, Hyeong-un,Lee, Kyeong-Bo,Nam, Sang Sik,Kim, Chang-Seok,Lee, Gwan-Seok,Kim, Jeong-Soo,Lee, Sukchan,Choi, Hon The Korean Society of Plant Pathology 2017 Plant Pathology Journal Vol.33 No.5
A nationwide survey was performed to investigate the current incidence of viral diseases in Korean sweet potatoes for germplasm and growing fields from 2011 to 2014. A total of 83.8% of the germplasm in Korea was infected with viruses in 2011. Commercial cultivars that were used to supply growing fields were infected at a rate of 62.1% in 2012. Among surveyed viruses, the incidence of five Potyvirus species that infect sweet potato decreased between 2012 and 2013, and then increased again in 2014. Representatively, the incidence of Sweet potato feathery mottle virus (SPFMV) was 87.0% in 2012, 20.7% in 2013 and then increased to 35.3% in 2014. Unlike RNA viruses, DNA viruses were shown to decrease continuously. The incidence of Sweet potato leaf curl virus (SPLCV) was 5.5% in 2003, 59.5% in 2011, and 47.4% in 2012. It then decreased continuously year by year to 33.2% in 2013, and then 25.6% in 2014. While the infection rate of each virus species showed a tendency to decline, the virus infection status was more variable in 2013 and 2014. Nevertheless, the high rate of single infections and mixed infection combinations were more variable than the survey results from 2012. As shown in the results from 2013, the most prevalent virus infection was a single infection at 27.6%, with the highest rate of infection belonging to sweet potato symptomless virus-1 (SPSMV-1) (12.9%). Compared to 2013, infection combinations were more varied in 2014, with a total of 122 kinds of mixed infection.
Association of Age and BP Variability with Long-term Mortality in Hemodialysis Patients
Kim, Ha Yeon,Kang, Yong Un,Kim, Chang Seong,Choi, Joon Seok,Bae, Eun Hui,Ma, Seong Kwon,Kim, Soo Wan Karger Medical and Scientific Publishers 2014 Kidney & blood pressure research Vol.38 No.2
<P>Abstract</P><P><B><I>Background/Aims: </I></B>Blood pressure (BP) variability is known as a poor prognostic factor for cardiovascular outcomes. This study assessed the prognostic significance of BP variability in association with increasing age in hemodialysis patients. <B><I>Methods</I></B><B><I>: </I></B>We retrospectively analyzed 2,174 patients on hemodialysis from March 2005 to December 2012. The impact of intradialytic and interdialytic BP variability on all-cause mortality according to age groups was analyzed. <B><I>Results: </I></B>Kaplan-Meier survival curves for 5-year cumulative mortality showed higher mortality in patients with higher intradialytic systolic and diastolic BP variability as well as interdialytic systolic and diastolic BP variability (log-rank p=0.006, <0.001, 0.018 and < 0.001) in patients aged <55 years, but not in older age groups. Cox proportional analysis revealed that 5-year mortality was associated with intradialytic diastolic BP variability in patients aged <55 years (HR, 2.03 CI, 1.24-3.32). <B><I>Conclusion: </I></B>The overall mortality was associated with BP variability in patients aged <55 years, but not in older ages. This result suggests that younger hemodialysis patients with BP variability require further medical attention and intervention to reduce BP variability.</P><P>© 2014 S. Karger AG, Basel</P>
KIM, YONG KYUN,PARK, CHAN S,IHM, SANG‐,HYUN,KIM, HEE‐,YEOL,HONG, TAI Y,KIM, DAI J,PAE, CHI‐,UN,SONG, HO C,KIM, YONG‐,SOO,CHOI, EUY J Blackwell Publishing Asia 2011 Nephrology Vol.16 No.2
<P><B>ABSTRACT</B></P><P><B>Aim: </B> Multiple measurements of depression symptoms over time were more predictive of cardiovascular mortality than a single time measurement performed at baseline. The aim of this study is to evaluate the association of the course of depression symptoms, based on repeated assessments of depression symptoms over time, with left ventricular mass index (LVMI) and left ventricular filling pressure (LVFP) in patients on haemodialysis (HD).</P><P><B>Methods: </B> The level of depression symptoms in 61 patients on HD were prospectively assessed using the Beck Depression Inventory (BDI) at baseline and at three intervals (5, 10, 15 months). Doppler echocardiographic examinations were performed at the end of follow up.</P><P><B>Results: </B> At the end of follow up, the patients were divided into three groups according to their course of depression symptoms: non‐depression (<I>n</I> = 21), intermittent depression (<I>n</I> = 23) and persistent depression (<I>n</I> = 17). LVMI and LVFP were significantly increased in the persistent depression symptoms group compared to those of the non‐depression symptoms group and the intermittent depression symptoms group. Persistent depression symptoms were independently associated with LVMI (β‐coefficient = 0.347, <I>P</I> = 0.017) and LVFP (β‐coefficient = 0.274, <I>P</I> = 0.048) after adjustment for age, sex, systolic blood pressure, diastolic blood pressure, diabetes and interdialytic weight gain.</P><P><B>Conclusion: </B> In our study, persistent depression symptoms were associated with left ventricular hypertrophy and diastolic dysfunction. Our data may provide a more complete understanding of cardiovascular risk associated with depression symptoms in patients on HD.</P>
Kim, Yong-Kyoung,Kim, Yeon Bok,Kim, Jae Kwang,Kim, Soo-Un,Park, Sang Un The Korean Society for Applied Biological Chemistr 2014 Applied Biological Chemistry (Appl Biol Chem) Vol.57 No.3
Panax ginseng Meyer is one of the most important medicinal plants in Asia, and ginseng has attracted considerable attention worldwide. Triterpene saponins (ginsenosides) are the main bioactive compounds in P. ginseng. The isoprene units of triterpene are derived from the mevalonic acid (MVA) pathway. We cloned four genes involved in MVA pathway using rapid amplification of cDNA ends by polymerase chain reaction. Additionally, we investigated the transcript levels of 11 genes involved in the terpenoid pathway in different organs and cell suspension cultures of P. ginseng. The full-length cDNA sequences were as follows: PgHMGS (1764 bp; 1407-bp ORF), PgHMGR (1992 bp; 1722-bp ORF), PgPMK (2170 bp; 1530-bp ORF), and PgMVD (1759 bp; 1263-bp ORF). The highest expression level of all genes was found in fine roots. The total ginsenoside contents in different organs were ranked in the following descending order: leaf > fine root > lateral root > red berry > main root > petiole > stem. Campesterol and stigmasterol were detected in all organs but at different concentrations. The total phytosterol content was highest in fine root ($147.8{\mu}g$/100 mg dry weight (DW)), and was lowest in the stem ($86.4{\mu}g$/100 mg DW). Four enzymes in the MVA pathway were cloned and characterized in P. ginseng. Such genes play important roles in terpenoid biosynthesis and may have applications in the metabolic engineering of ginsenoside production.