한국잔디 수집계통들 중에서 우수계통들의 생육특성 비교

임용우(Y. W. Rim),김기용(K. Y. Kim),김맹중(M. J. Kim),성병렬(B. R. Sung),임영철(Y. C. Lim),정의수(E. S. Chung),신홍균(H. K. Shin),김용선(Y. S. Kim) 한국잡초학회·한국잔디학회 2003 Weed & Turfgrass Science Vol.17 No.2,3

2001년 수집된 한국잔디 133계통들 중에서 우수한 계통들을 선발하기위하여 밀도(품질),<br/> 피복성, 녹색기간, 내병성, 출수유무(종자수) 등의 주요특성과 그 외 생육특성들이 조사되었다. 생육특성이 우수한 6계통이 선발되었으며 그 결과를 요약하면 다음과 같다.<br/> 수집된 133계통들 중에서 가장 녹색기간이긴 계통은 J01067으로 11월초까지 녹색도를 유지하였다. J01106 및 J01129 계통들은 엽폭이 각각 1.5mm 및 2mm 정도로 매우 좁으며, 밀도가 높고, 피복성도 좋은 것으로 나타났으며, 내병성도 강하였다. J01122 계통은 들잔디 계통들 중에서 유일하게 내병성이 강한 계통으로 선발되었다. J01128 계통은 엽폭이 3.2mm로 중엽에 속하였으며, 대비품종인 Sunburst 와 비슷하였다. 이 계통의 경우도J01106, J01129 계통들과 마찬가지로 밀도가 높고 내병성이 강한 것으로 나타났다.<br/> 수집된 133계통들의 형태적 분류를 위하여 5가지의 생육특성을 사용하여 크게 세가지 군집<br/> 으로 분류하였으며, 그 중에서 대비품종으로 사용된 6품종들과 선발된 우수 6계통의 분류는<br/> 다음과 같다. 제 1군집에 속하는 품종 및 계통은 Belare, Meyer, 안양중지(Anyang-jungji), J01067, J01112 등이 포함되었으며, 제 2군집으로는 S-94, J01105가 포함되었고, 제 3군집에는 Sunburst, 건희(Konhee), J01106, J01128, J01129 등이 포함되었다. Growth characteristics such as density(quality), covering speed, green period, disease resistance, heading existence(number of seeds) and other characteristics were examined for selection of superior lines among the 133 zoysiagrass lines collected in 2001. Six superior lines were selected and the results were summarized as follows.<br/> Superior line, J01067 was longest for green period among the 133 zoysiagrasses and stayed green until the beginning of November. Leaf width of J01106 and J01129 lines was very narrow as 1.5㎜ and 2㎜, respectively and superior for density(quality), covering speed and disease resistance. J01122 line was selected for strongest disease resistance among the lines of Zoysia japonica. Leaf width of J01128 was 3.2㎜ showing midium type and similar to standard cultivar, Sunburst. This line also showed higher density and strong disease resistance like J01106 and J01129.<br/> Five growth characteristics for morphological classification of 133 zoysiagrass lines<br/> was used and divided into 3 cluster groups. Of 133 lines, 6 standard cultivars and 6 superior lines were classified as follows. First cluster group contained Belare, Meyer, Anyang-jungji, J01067, J01122, and second group contained S-94 and J01105, and third group contained Sunburst, Konhee, J01106, J01128 and J01129.<br/> <br/>

Effects of nano-carbon doping and sintering temperature on microstructure and properties of MgB₂

Lim, J.H.,Shim, J.H.,Choi, J.H.,Park, J.H.,Kim, W.,Joo, J.,Kim, C.J. North-Holland 2009 Physica. C, Superconductivity Vol.469 No.15

We fabricated nano-carbon (NC) doped MgB<SUB>2</SUB> bulks using an in situ process in order to improve the critical current density (J<SUB>c</SUB>) under a high magnetic field and evaluated the correlated effects of the doped carbon content and sintering temperature on the phase formation, microstructure and critical properties. MgB<SUB>2-x</SUB>C<SUB>x</SUB> bulks with x=0 and 0.05 were fabricated by pressing the powder into pellets and sintering at 800<SUP>o</SUP>C, 900<SUP>o</SUP>C, or 1000<SUP>o</SUP>C for 30min. We observed that NC was an effective dopant for MgB<SUB>2</SUB> and that part of it was incorporated into the MgB<SUB>2</SUB> while the other part remained (undoped), which reduced the grain size. The actual C content was estimated to be 68-90% of the nominal content. The NC doped samples exhibited lower T<SUB>c</SUB> values and better J<SUB>c</SUB>(B) behavior than the undoped samples. The doped sample sintered at 900<SUP>o</SUP>C showed the highest J<SUB>c</SUB> value due to its high doping level, small amount of second phase, and fine grains. On the other hand, the J<SUB>c</SUB> was decreased at a sintering temperature of 1000<SUP>o</SUP>C as a result of the formation of MgB<SUB>4</SUB> phase.

S-Noetherian properties on amalgamated algebras along an ideal

Lim, J.W.,Oh, D.Y. North-Holland Pub. Co 2014 Journal of pure and applied algebra Vol.218 No.6

Let A and B be commutative rings with identity, f:A→B a ring homomorphism and J an ideal of B. Then the subring A@?<SUP>f</SUP>J:={(a,f(a)+j)|a@?A and j@?J} of AxB is called the amalgamation of A with B along with J with respect to f. In this paper, we investigate a general concept of the Noetherian property, called the S-Noetherian property which was introduced by Anderson and Dumitrescu, on the ring A@?<SUP>f</SUP>J for a multiplicative subset S of A@?<SUP>f</SUP>J. As particular cases of the amalgamation, we also devote to study the transfers of the S-Noetherian property to the constructions D+(X<SUB>1</SUB>,...,X<SUB>n</SUB>)E[X<SUB>1</SUB>,...,X<SUB>n</SUB>] and D+(X<SUB>1</SUB>,...,X<SUB>n</SUB>)E@?X<SUB>1</SUB>,...,X<SUB>n</SUB>@? and Nagata@?s idealization.

Quantifying herbicide dose-response and resistance in <i>Echinochloa</i> spp. by measuring root length in growth pouches

Zhang, C. J.,Lim, S. H.,Kim, J. W.,Song, J. S.,Yook, M. J.,Nah, G.,Valverde, B. E.,Kim, D. S. Canadian Science Publishing 2015 Canadian journal of plant science. Revue canadienn Vol.95 No.6

<P> Zhang, C. J., Lim, S. H., Kim, J. W., Song, J. S., Yook, M. J., Nah, G., Valverde, N. E. and Kim, D. S. 2015. Quantifying herbicide dose-response and resistance in Echinochloa spp. by measuring root length in growth pouches. Can. J. Plant Sci. 95: 1181-1192. The aim of the presented study was to develop a bioassay for rapid diagnosis of herbicide dose-response and resistance in Echinochloa. Pre-germinated seeds of Echinochloa spp. were incubated in growth pouches (18 cm×16.5 cm) containing herbicide solutions in a range of concentrations. Shoot and root lengths were measured after 6 d of incubation. Dose-responses estimated by measuring root lengths in the growth pouches were well-described by the log-logistic dose-response model and similar to those estimated by a whole-plant assay. Accurate dose-response curves were successfully generated for several herbicides with different modes of action, suggesting that the growth pouch method can be used for herbicide bioassays. The suitability of the growth pouch method for rapid diagnosis of acetyl coenzyme-A carboxylase (ACCase) and acetolactate synthase (ALS) inhibitor resistance in Echinochloa spp. was also tested. For cyhalofop-butyl, resistant and susceptible biotypes were discriminated at 180-300 mg a.i. L<SUP>−1</SUP> and 80-120 mg a.i. L<SUP>−1</SUP> for barnyardgrass (E. crus-galli) and late watergrass (E. oryzicola), respectively. For penoxsulam, the discriminatory dosage was 350-500 mg a.i. L<SUP>−1</SUP> for barnyardgrass and 650-1000 mg a.i. L<SUP>−1</SUP> for late watergrass. The method was further used to identify late watergrass biotypes resistant and susceptible to two other ALS inhibitors, azimsulfuron and bispyribac-sodium. Our results show that the growth pouch method can be reliably used in herbicide dose-response studies and to diagnose herbicide resistance in Echinochloa spp., with significant time and cost savings compared with conventional whole-plant assays. </P>

건국 우유와 유제품의 소비성향에 관한 조사연구

임종우,김종우,조광호,김영주,유제현,윤여창,장주익,권일경,안효일,이용규,이부응,박종래,이헌종 경상대학교 축산진흥연구소 1989 畜産振興硏究所報 Vol.16 No.1

J-Sim: a simulation and emulation environment for wireless sensor networks

Sobeih, A.,Hou, J.C.,Lu-Chuan Kung,Ning Li,Honghai Zhang,Wei-Peng Chen,Hung-Ying Tyan,Hyuk Lim IEEE 2006 IEEE wireless communications Vol.13 No.4

<P>Wireless sensor networks have gained considerable attention in the past few years. They have found application domains in battlefield communication, homeland security, pollution sensing, and traffic monitoring. As such, there has been an increasing need to define and develop simulation frameworks for carrying out high-fidelity WSN simulation. In this article we present a modeling, simulation, and emulation framework for WSNs in J-Sim - an open source, component-based compositional network simulation environment developed entirely in Java. This framework is built on the autonomous component architecture and extensible internetworking framework of J-Sim, and provides an object-oriented definition of target, sensor, and sink nodes, sensor and wireless communication channels, and physical media such as seismic channels, mobility models, and power models (both energy-producing and energy-consuming components). Application-specific models can be defined by subclassing classes in the simulation framework and customizing their behaviors. We also include in J-Sim a set of classes and mechanisms to realize network emulation. We demonstrate the use of the proposed WSN simulation framework by implementing several well-known localization, geographic routing, and directed diffusion protocols, and perform performance comparisons (in terms of the execution time incurred and memory used) in simulating WSN scenarios in J-Sim and ns-2. The simulation study indicates the WSN framework in J-Sim is much more scalable than ns-2 (especially in memory usage). We also demonstrate the use of the WSN framework in carrying out real-life full-fledged Future Combat System (FCS) simulation and emulation</P>

The LIM-only transcription factor LMO2 determines tumorigenic and angiogenic traits in glioma stem cells

Kim, S-H,Kim, E-J,Hitomi, M,Oh, S-Y,Jin, X,Jeon, H-M,Beck, S,Jin, X,Kim, J-K,Park, C G,Chang, S-Y,Yin, J,Kim, T,Jeon, Y-j,Song, J,Lim, Y C,Lathia, J D,Nakano, I,Kim, H Macmillan Publishers Limited 2015 CELL DEATH AND DIFFERENTIATION Vol.22 No.9

Glioblastomas (GBMs) maintain their cellular heterogeneity with glioma stem cells (GSCs) producing a variety of tumor cell types. Here we interrogated the oncogenic roles of Lim domain only 2 (LMO2) in GBM and GSCs in mice and human. High expression of LMO2 was found in human patient-derived GSCs compared with the differentiated progeny cells. LMO2 is required for GSC proliferation both in vitro and in vivo, as shRNA-mediated LMO2 silencing attenuated tumor growth derived from human GSCs. Further, LMO2 is sufficient to induce stem cell characteristics (stemness) in mouse premalignant astrocytes, as forced LMO2 expression facilitated in vitro and in vivo growth of astrocytes derived from Ink4a/Arf null mice and acquisition of GSC phenotypes. A subset of mouse and human GSCs converted into vascular endothelial-like tumor cells both in vitro and in vivo, which phenotype was attenuated by LMO2 silencing and promoted by LMO2 overexpression. Mechanistically, the action of LMO2 for induction of glioma stemness is mediated by transcriptional regulation of Jagged1 resulting in activation of the Notch pathway, whereas LMO2 directly occupies the promoter regions of the VE-cadherin gene for a gain of endothelial cellular phenotype. Subsequently, selective ablation of human GSC-derived VE-cadherin-expressing cells attenuated vascular formation in mouse intracranial tumors, thereby significantly prolonging mouse survival. Clinically, LMO2 expression was elevated in GBM tissues and inversely correlated with prognosis of GBM patients. Taken together, our findings describe novel dual roles of LMO2 to induce tumorigenesis and angiogenesis, and provide potential therapeutic targets in GBMs.

한국산 원유의 화학적 조성에 관한 연구 : 지역별 · 계절별

이현종,강국희,고준수,김영교,김영주,김종우,김현욱,박종래,유제현,윤여창,윤영호,임종우 제주대학교 농과대학 제주도축산문제연구소 1991 畜産論叢 Vol.6 No.1

Totally 881 bulked raw milk samples were collected once a month from Oct. 1989 to Sep. 1990 at 18 districts plus 8-16 farms in the all over Korea, and general composition of raw milk were analysed for the variation and correlation in between provincial areas, districts, and collection lines of milk plant. Each components of raw milk collected in province and district were significantly differed (p<0.001), but sampling stage were not effected on the composition of milk. In the monthly variation of milk composition, all of components excepted the content of ash in raw milk were lower in July and August, and tended to increas in October to January, and significantly (0.001) greater than in July and August. The correlation coefficients for the relation between fat content and total solids or protein were 0.635, 0.135 respectively, and between protein content and total solids or SNF were 0.652, 0.742.

23 이차원 전기영동법과 immunobotting을 이용한 Helicobacter pylori strain 26695, J99, 51의 항원 분석

김어진 ( E. J. Kim ),이민혜 ( M. H. Lee ),전진수 ( J. S. Jun ),박지희 ( J. H. Park ),서지현 ( J. H. Seo ),임재영 ( J. Y. Lim ),박찬후 ( C. H. Park ),최명범 ( M. B. Choi ),우향옥 ( H. O. Woo ),윤희상,고경혁 ( K. H. Ko ),백승철 ( S. C. Ba 대한소화기학회 2002 대한소화기학회 추계학술대회 Vol.2002 No.-

남자대학생의 정신건강, 부모양육태도, 애착이 도박중독에 미치는 영향

김혜진,박재희,유지원,이수현,이지은,임소정,장우주,지연주,최민정,김석선,박향진 이화여자대학교 간호과학대학 2016 이화간호학회지 Vol.- No.50

Objectives: The purpose of this research was to identify the effect of mental health, parenting attitude and attachment on gambling addiction severity among male college students. Methods: Subjects of the research were 292 students recruited from colleges in Seoul, Korea. The questionnaires were composed of CPGI, DASS-21, PBI, ECR-R. The data was statistically analyzed by Chi-square, ANOVA, Scheffe test and Pearson’s correlation. Results: The proportion of moderate-risk gambling and high-risk gambling group was reported 28.1%. There a statistically significant difference between gambling addiction severity groups in Anxiety(F=3.19, p<.05). Statistically significant linear relationship was found between Anxiety and gambling addiction score(r=.15, p<.05). There was statistically significant difference between gambling addiction severity groups in Caring(F=4.74, p<.01). Statistically significant linear relationship was found between Caring and gambling addiction score(r=-2.14, p<.01). There was statistically significant difference between gambling addiction severity groups in Overprotection(F=4.74, p<.01). Statistically significant linear relationship was examined between Overprotection and gambling addiction score(r=.20, p<.01). Significant difference was examined between gambling addiction severity in Attachment Anxiety(F=3.76, p<.05). Attachment Anxiety showed significant linear relationship with gambling addiction score(r=-.17, p<.01). Significant differences were examined between gambling addiction severity in Attachment avoidance (F=3.46, p<.05). Attachment avoidance showed no significant relationship with gambling addiction score(r=-.09, p=.12). Conclusions: This study showed the effect of mental health, parenting attitude and attachment on gambling addiction severity among male college students. Based on the result, it is recommend for nurses to develop intervention to prevent gambling addiction among college students by lowering anxiety, stabilizing attachment through desirable caring attitude from parents.