중국 靑島의 한국 산업 이전 유치효과 향상방안 연구 : 靑島 진출 한국 기업의 투자동기 분석을 중심으로

徐永輝,全冬梅 신라대학교 경제경영연구소 2007 경제경영연구 Vol.8 No.-

This study analyzed the main motive of Korean firm's FDI into Qingdao of China in order to improve the effects of attracting Korean firm's FDI to Qingdao. This study first researched the literatures and studies on FDI motive systematically. Then classified it into two groups(low product's costs and Chinese domestic market) and measured Korean firm's features of real motive using survey data of (Korean) firm-level in Qingdao. Finally discussed and showed suggestions for Improving effects of attracting Korean firm's FDI to Qingdao.

談《金甁梅》歇後語的語用功能與人物形象塑造

조동매 ( Dong Mei Zhao ) 한국외국어대학교 중국연구소 2014 中國硏究 Vol.61 No.-

This essay examines the linguistic function of the allegorical sayings (Xiehouyu) in Jin Ping Mei and tries to understand the significance of the realization of such function to the characterization of the novelistic figures. Further, this essay compares the usage of allegorical sayings in both Jin Ping Mei and Xing Shi Yin Yuan Zhuan, and discusses whether or not the use of any allegorical sayings in a fiction affects its narrative style.

C-type natriuretic peptide attenuates renal osteodystrophy through inhibition of FGF-23/MAPK signaling

Dong Dong Zhang,Yang Fang Wu,Wei Xia Chen,Yao Xu,Si Yan Liu,Huang Huang Luo,Guang Mei Jiang,Yue Wu,Peng Hu 생화학분자생물학회 2019 Experimental and molecular medicine Vol.51 No.-

Renal osteodystrophy (ROD) occurs as early as chronic kidney disease (CKD) stage 2 and seems ubiquitous in almost all pediatric patients with CKD stage 5. Fibroblast growth factor (FGF)-23, a bone-derived endocrine regulator of phosphate homeostasis, is overexpressed in CKD and disturbs osteoblast differentiation and matrix mineralization. In contrast, C-type natriuretic peptide (CNP) acts as a potent positive regulator of bone growth. In the present study, we infused CNP into uremic rats and observed whether CNP could attenuate ROD through the inhibition of FGF-23 cascades. In uremic rats, CNP administration significantly alleviated renal dysfunction, calcium phosphate metabolic disorders, hypovitaminosis D, secondary hyperparathyroidism, the decrease in bone turnover markers and retarded bone pathological progression. More importantly, within FGF-23/mitogen-activated protein kinase (MAPK) signaling, the fibroblast growth factor receptor-1, Klotho and alternative (STAT-1/phospho-STAT-1) elements were upregulated by CNP, whereas FGF-23, RAF-1/phospho-RAF-1, and downstream (ERK/phospho-ERK and P38/phospho-P38) elements were paradoxically underexpressed in bone tissue. Therefore, CNP exerts a therapeutic effect on ROD through inhibition of FGF-23/MAPK signaling at the RAF-1 level.

A Novel Electrochemical Biosensor Based on Graphene and Cu Nanowires Hybrid Nanocomposites

Mei Chen,CHANGJUN HOU,DANQUN HUO,Liang Dong,Mei Yang,Huanbao Fa 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2016 NANO Vol.11 No.11

In this research, a new electrochemical sensor based on hybrid nanocomposite consisting of copper nanowires (CuNWs) and graphene (GR) were developed for the detection of organophosphorus pesticides (OPs). The surface morphology of the hybrid nanocomposite were studied by scanning electron microscope (SEM). The electrochemical behavior of the hybrid nanocomposites based sensor and its application for pesticides determination were evaluated by cyclic voltammetry (CV) and square wave voltammetry (SWV). Under optimized operational conditions, SWV was further employed for methyl parathion detection, which shows a wide dynamic range from 0.2 µM to 5 µM, a high sensitivity (69.2 · cm2 · µM-1) and the detection limit as low as 50 nM. It also had specific detection to the methyl parathion residues and had good reproducibility and stability. These results implicated the potential applicability of CuNWs/GNs-Chit hybrid nanocomposites in sensitive and selective detection of organophosphorus pesticides.

The complete mitochondrial genome sequence of the little grebe (Tachybaptus ruficollis)

Mei-dong Jing,Ling Huang,Yi-cheng Wang,Yi Zou,Xiao-min Sun,Jie Gong 한국유전학회 2017 Genes & Genomics Vol.39 No.1

Podicipediformes comprises one family (Podicipedidae) including 6 genera, 22 species, and the phylogenetic placement of this order was still in debate. In this study, we sequenced the complete mitochondrial genome (mitogenome) of little grebe (Tachybaptus ruficollis) in Podicipediformes, and explored the phylogenetic position of this order with mitogenome sequences of 21 species from ten families in seven orders. The genome was 16,688 bp in length, and contained 37 genes typical to avian mitogenomes and one control region. The gene organization and characters were similar with other two mitogenomes available in Podicipediformes to date. Phylogenetic tree was constructed with Bayesian method based on mitogenome sequences excluding the control regions. The results supported the closest relationship between Podicipediformes and Phoenicopteriformes, and the topology of our tree was generally similar with the conclusions of previous molecular systematic investigations. Our results furtherly proved the validity of mitogenome data in taxonomic and phylogenetic studies.

Response of Grafted Watermelon Leaf Proteome Changes to Rootstock Genotypes

Dong Dong Yang,Hong Mei Du,Dan Feng Huang 한국원예학회 2006 한국원예학회 기타간행물 Vol.- No.-

A path-dependent fatigue crack propagation model under non-proportional modes I and III loading conditions

Mei, J.,Dong, P.,Kalnaus, S.,Jiang, Y.,Wei, Z. Pergamon Press 2017 Engineering fracture mechanics Vol.182 No.-

<P><B>Abstract</B></P> <P>It has been well established that fatigue damage process is load-path dependent under non-proportional multi-axial loading conditions. Most of studies to date have been focusing on interpretation of S-N based test data by constructing a path-dependent fatigue damage model. This paper presents a two-parameter mixed-mode fatigue crack growth model which takes into account of crack growth dependency on both load path traversed and a maximum effective stress intensity attained in a stress intensity factor plane ( e . g . , <SUB> K I </SUB> - <SUB> K III </SUB> plane). By taking advantage of a path-dependent maximum range (PDMR) cycle definition (Dong et al., 2010; Wei and Dong, 2010), the two parameters are formulated by introducing a moment of load path (MLP) based equivalent stress intensity factor range ( Δ <SUB> K NP </SUB> ) and a maximum effective stress intensity parameter <SUB> K Max </SUB> incorporating an interaction term <SUB> K I </SUB> · <SUB> K III </SUB> . To examine the effectiveness of the proposed model, two sets of crack growth rate test data are considered. The first set is obtained as a part of this study using 304 stainless steel disk specimens subjected to three combined non-proportional modes I and III loading conditions (i.e., with a phase angle of 0°, 90°, and 180°). The second set was obtained by Feng et al. (2007) using 1070 steel disk specimens subjected to similar types of non-proportional mixed-mode conditions. Once the proposed two-parameter non-proportional mixed-mode crack growth model is used, it is shown that a good correlation can be achieved for both sets of the crack growth rate test data.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Presented a two-parameter mixed-mode fatigue crack growth model. </LI> <LI> Both load path dependency and mean stress effect are considered. </LI> <LI> Validated by non-proportional mixed mode I and III crack growth tests on 304 steel. </LI> <LI> Good correlations are achieved both for test data obtained in this study and from others. </LI> </UL> </P>

Influence of Water Electrolysis on Bioelectrochemical Methane Conversion of Coal

( Dong-mei Piao ),( Young-chae Song ),( Gyung-geun Oh ),( Dong-hoon Kim ),( Yong-tae Ahn ),( Yeo-myeong Yun ) 한국폐기물자원순환학회(구 한국폐기물학회) 2019 ISSE 초록집 Vol.2019 No.-

The influence of water electrolysis on the biogenic methane conversion of coal was investigated in a bioelectrochemical anaerobic batch reactor. For the experiment, the pairs of ordinary electrodes (OE) consisting of anode and cathode were prepared with titanium foil and the surface of the OE surface was coated with a dielectric polymer to obtain a pair of insulated electrodes (IE). The pairs of OE or IE were placed in the bioelectrochemical anaerobic batch reactors, and polarized by applying voltage (0.5V, 1.0V, and 2.0V for the OEs, 2.0V for the IE) with an external voltage source. The bioelectrochemical anaerobic reactors were operated at 35oC after adding a medium containing yeast extract, coal (lignite, 2.5 g/L), and seeding with anaerobic sludge. The cumulative methane production in the OE reactor applied with the voltage of 2.0 V was gradually saturated to 162.9 mL without lag phase, which was higher 136 mL in the IE reactor. However, when the electrodes in the OE reactor were applied with a voltage (0.5V, 1.0V) lower than the voltage for water electrolysis, the cumulative methane production from coal was less than the blank. This indicates that the oxygen from the water electrolysis on the anode polarized with 2.0V was served as an electron acceptor to stimulate the ring-opening reaction of the high molecular coal hydrolysis products. However, the methane production from the OE and IE reactors was gradually decreased by the accumulation of the coal conversion intermediates. By supplementing the anaerobic medium containing yeast extract and anaerobic sludge, the cumulative methane production was abruptly increased again in the IE reactor, which was significantly higher than those of the OE reactors. The total methane yield of coal was 153.9 mL/g lignite in the IE reactor, significantly higher than 54.1 mL/g lignite in the OE reactor (2.0 V). This suggests that the coal could be effectively hydrolyzed and fermented under the electrostatic field in the IE reactor, and the methane conversion of coal via biological direct interspecies electron transfer could be stimulated by supplementing yeast extract and anaerobic sludge.

Ecological No-tillage Technology of Sloping Tea Garden in China

Dong-Mei Fan,Kai Fan,Peng Lu,Xiao-Chang Wang 한국차학회 2015 한국차학회지 Vol.- No.S

The majority of sloping tea gardens in China are now short of effective management because of the limitation of labor force, therefore tea quality is hard to guarantee and the tea industry might be frustrated. Thus a new ecological no-tillage technique (abbreviation for ENT) was put forward, the application of this technique was developed on the basis of some reconstructions in current sloping tea gardens including two key steps: 1) remolding present sloping tea gardens into semi-trapezoidal one by a special ditch; 2) preserving pruning brunches and organic fertilizers into those ditches to form an organic cover layer on soil. This no-tillage technique could significantly reduce soil erosion as well as promote the formation of organic matters on soil surface in 3-5 years. Comparing with the conventional tillage measures, ENT could save about 40% fertilization and 50% labor-cost. Combine with assistant managements, the ecological no-tillage technology could not only effectively recover ecosystem, but also depress plant diseases and insect pests. Improvement on tea production and tea quality especially tea aroma are also observed. It is convincible that ENT has considerable advantages in cost-savings and production efficiency improvement in sloping tea gardens, which makes it one of the reference management choices for future sustainable development.

Research and Implementation of Support Vector Machine and Its Fast Algorithm

Dong Ai-mei 보안공학연구지원센터 2014 International Journal of Multimedia and Ubiquitous Vol.9 No.10