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Draft Genome Sequence of Pedobacter agri PB92T, Which Belongs to the Family Sphingobacteriaceae
Lee, M.,Roh, S. W.,Lee, H.-W.,Yim, K. J.,Kim, K.-N.,Bae, J.-W.,Choi, K.-S.,Jeon, Y.-J.,Jung, W.-K.,Kang, H.,Hyun, C.-G.,Kim, D. American Society for Microbiology 2012 Journal of Bacteriology Vol.194 No.14
Lee, M.,Lee, S. Elsevier 2017 Technological forecasting social change Vol.119 No.-
This study aims to analyze the position of technology-centered companies in complex market dynamics and discover new business opportunities from competitor intelligence. For this, we consider both technology and market characteristics in providing competitor intelligence by utilizing patent data as a representative proxy for a firm's technology, and trademark data as an information source for the firm's target goods and services. To analyze the two types of data, a collaborative filtering approach together with portfolio analyses and association mining techniques were adopted. Theoretically, this is one of the earliest attempts to combine patent data and trademark data to investigate corporate strategies. In practice, the research results are expected to be used as a decision criterion to diagnose the economic value that companies can obtain by entering the market, as well as the technological value to be passed onto their customers. Thus, the proposed approach can be useful to support effective technology and business strategies in a firm.
Lee, M.,Park, H.S.,Park, J.H.,Moriyama, K.,Kim, M.H. Elsevier 2019 International journal of multiphase flow Vol.118 No.-
<P><B>Abstract</B></P> <P>The effect of interfacial friction at a high void fraction on the estimation of the dryout heat flux (DHF) of particle beds under co-current two-phase flow conditions is investigated. The objective is to reduce uncertainties in the assessment of debris bed coolability during a severe accident in a light water reactor (LWR).</P> <P>A review of porous media air/water pressure drop experiments and friction models in the literature revealed that the existing models cannot adequately predict the interfacial friction at high void fraction. In this study, interfacial friction at high void fraction is suggested and corresponding modifications to the flow pattern map and other friction terms are presented. The proposed model shows an acceptable agreement with the experimental data of both the air/water two-phase pressure drop and DHF experimental results within the particle size range of 2–4 mm, similar to the average diameter of debris particles (2.5–3.5 mm, Hong and An, 2018) obtained from fuel coolant interaction tests.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Improvement of two-phase friction model for high void fraction range in porous media. </LI> <LI> Modified flow pattern map for channel and annular flow in porous media. </LI> <LI> Model validation with air-water two-phase pressure drop and dryout experimental data in porous media. </LI> </UL> </P>
Lee, M.,Ryu, Y.H.,Cho, W.G.,Jeon, T.J.,Lyoo, C.H.,Kang, Y.W.,Lee, S.J.,Kim, C.H.,Kim, D.G.,Kang, J.H.,Seo, Y.B.,Yi, C.H.,Lee, K.,Choi, T.H.,Choi, J.Y. Pergamon Press 2014 Applied radiation and isotopes Vol.94 No.-
The purpose of the present study is to investigate the relationship between dopaminergic neuron destruction and 5-HT system changes in a hemiparkinsonian rat model. We performed PET imaging studies with trans-[<SUP>18</SUP>F]Mefway in a hemiparkinsonian model of unilateral 6-hydroxydopamine (6-OHDA) rats. Region-of-interests (ROIs) were drawn in the hippocampus (HP) and cerebellum (CB). HP uptake, the ratios of specific binding to non-specific binding in the HP, and non-displaceable binding potential (BP<SUB>ND</SUB>) in the HP were compared between 6-OHDA and control rats. As a result, unilateral 6-OHDA-lesioned rats exhibited significant bilateral reduction of HP uptake and trans-[<SUP>18</SUP>F]Mefway BP<SUB>ND</SUB> compared to the intact control group. Therefore, the results demonstrate that destruction of the dopaminergic system causes the reduction of the serotonergic system.
Insight from early coral-stromatoporoid intergrowth, Late Ordovician of China
Lee, M.,Elias, R.J.,Choh, S.J.,Lee, D.J. Elsevier 2016 Palaeogeography, palaeoclimatology, palaeoecology Vol.463 No.-
One of the earliest endosymbiotic associations with stromatoporoids occurs in the Late Ordovician Xiazhen Formation of southeastern China. Bajgolia, an auloporid tabulate coral characterized by dichotomous branching due to longitudinal fission, is represented by free-living as well as endobiontic forms in various lithofacies representing a wide range of environments. Only two of 11 stromatoporoid genera (Clathrodictyon and Ecclimadictyon) hosted Bajgolia, mainly in reef and related facies. Bajgolia-stromatoporoid associations occur occasionally in the lower part of the formation, but eventually become persistent in the upper part. Such associations were initiated by larval settlement of the coral on the growth surface of the stromatoporoid. Growth of Bajgolia usually kept pace with its host, but the coral's ability to change growth direction and grow faster prevented its envelopment and termination by the stromatoporoid, allowing the establishment and recurrence of an ongoing endosymbiotic relationship between the two organisms. Endobiontic Bajgolia was able to survive with its corallites protruding from the host; in some cases, the growth form of the stromatoporoid changed in response to the coral. The relationships between Bajgolia and stromatoporoids were probably commensal, but there is also evidence for mutualism and/or parasitism. Bajgolia-stromatoporoid associations represent an important stage in the development of complex ecological relationships and community structure, prior to the common and widespread syringoporid (''caunopore tubes'')-stromatoporoid associations in the Siluro-Devonian.