• Asia-Pacific Journal of Business
• /
• v.2 no.1
• /
• pp.49-73
• /
• 2011

With the market evaluation of economic globalization exchanges between different cultures, cultural trade has been developing at an accelerated speed, and also playing an important role in East Asian intra-regional trade. In this research the author used gravity trade model to explain the causal relationship between dependent variable trade flows and several independent variables applying with five categories cultural goods which classified in HS codes. Firstly for cultural heritage trade flow, the results indicated that economic masses of bilateral countries have no significant influences on it; GDP per capita of host country and adjacency factor with partner country have significant negative influences on it; Internet coverage ratio has improved cultural heritages exchanges in East Asian regions. Secondly for printed matter cultural goods trade flow, the distance factor has significant negative influence but common language has significant positive influence on it. Thirdly for recorded media cultural goods, only economic masses and GDP per capita of bilateral countries can improved their trade flows. Fourthly for visual arts cultural products trade flows, almost all variables we tested have significant influences on it. Fifthly for cinema photography cultural goods trade flow, the influenced factor are same with cultural heritage products except they have strong positive interaction relationship with economic masses and common language. At last, the paper figured out some important and potential sectors for cultural goods trade in East Asia and gave some suggestions to government and cultural goods product enterprises.

• The Journal of Fisheries Business Administration
• /
• v.43 no.1
• /
• pp.19-34
• /
• 2012

The purpose of the paper is to find out the trade patten and characteristics of Korea's fisheries products by figuring out the factors of affecting the volume of the export of Korean frozen fisheries products based on the data of frozen fisheries (HS0303), which make up of the large volume of Korea's fisheries export using gravity model. The paper has performed regression analysis through using 624 panel data and the statistical program, STATA 12.0. In this study, we can get two results as follows: First, the total import volume of fisheries and transportation distance of trade partners have an influence on the Korea's trade of frozen fisheries products. The time and fare of transportation have also an influence on the Korea's trade of frozen fisheries products. Second, Korea's trade of frozen fisheries products is also affected by the exchange rate of currencies and settlement of FTA which could be shown as important factors in the estimation of export function of general products.

• Journal of the Korean GEO-environmental Society
• /
• v.22 no.1
• /
• pp.13-20
• /
• 2021

A suite of 3D large deformation finite element (FE) analyses was performed to investigate the load transfer mechanism and penetration resistance of spudcan foundations in heterogeneous soil profile consisting of sand and clay. The Elasto-Plastic models following Mohr-Coulomb and Tresca failure criteria were adopted for sand and clay, respectively. The accuracy of the numerical model was validated against centrifuge test measurements. The dense sand behavior with dilation is modeled using the non-associated flow rule. An investigation study consisting of key parameters, which includes variation in soil stratigraphy (sand-clay, sand-clay-sand), strength parameters of sand and clay (��' and su) and normalized height ratio of the sand layer (Hs/D) was conducted to assess the penetration behavior of spudcan. Based on calculated outputs, it was demonstrated that these parameters have a significant influence on the penetration resistance of spudcan. The calculated penetration resistance profiles are compared with the published (sand overlying clay) analytical model. It is confirmed that for the case of two-layer soil, the available theoretical model provides an accurate estimate of peak penetration resistance (qpeak). In the case of three-layer soil, the presence of a third stiff layer affects the penetration resistance profile due to the squeezing of the soil.

• The Korea Journal of Herbology
• /
• v.29 no.6
• /
• pp.95-102
• /
• 2014

Objectives : The purpose of this study is to prove the effect of GamiBangkeehwangkee-tang (f$\acute{a}$ngj$\check{i}$hu$\acute{a}$ngq$\acute{i}$-t$\bar{a}$ng, BHT) ethanol extract on the immunity and rheumatoid arthritis related inflammatory cytokines. Methods : We checked viability in RAW 264.7 cell after treat by BHT. Then we measured inflammatory and immunity factors of DBA/1 mice with rheumatoid arthritis induced by collagen after BHT oral administration. Also, we checked micro-CT image, bone volume and bone inflammation ratio in micro-CT and structural parameter test. Results : BHT showed cell viability of 95% or higher in all concentration in RAW 264.7 cells. BHT treated group decreased level in serum of IgM and IgG test by 36% and 25% respectively. And BHT treated group showed significant decrease in WBC, neutrophil, lymphocyte and monocytes immune cell ratio in blood by 47%, 22%, 56% and 85% respectively. Also, BHT treated group decreased level in serum of $IL-1{\beta}$, IL-6, IL-17, $TNF-{\alpha}$ and hs-CRP tests by 29%, 33%, 32%, 24% and 56% respectively. Finally, BHT treated group showed increase ratio of bone volume that decrease ratio of bone inflammation. Conclusions : In this study, the results were observed rheumatoid arthritis factors cytokine decrease in serum. And BHT showed immunoglobulin and immune cells ratio decrease in serum and blood. Also, BHT depending on effects of inflammatory and immunity in hs-CRP test, micro-CT, structural parameter test. Thus, these results can used as a effective drug of BHT for inflammation and immunity.

• International Commerce and Information Review
• /
• v.16 no.4
• /
• pp.307-330
• /
• 2014

The purpose of this study is to estimation of Technical Barriers of Trade(TBT) between Korea and China. TBT is one of the key issues in which both governments are interested since the Korea-China FTA negotiations had launched in 2012. In this paper, we aggregate nine country HS codes from World Bank and AIO codes from JETRO. Our estimation model based on modified price wedge approach differentiate previous researches in the sense that it covers all manufacture industries and uses nine country data set. Estimation results confirm the importance of TBT showing that TBT high ranking items significantly overlap high ranking export items. We also find that the size of Chinese TBT are much larger than that of Korean TBT, implying that Korean government needs smart and well prepared strategy for key items in TBT/FTA negotiation with Chinese government.

• Journal of the Korean Society of Food Culture
• /
• v.35 no.5
• /
• pp.493-502
• /
• 2020

The objective of this study was to investigate the effects of dietary vitamin B intake on biomarkers related to lipid metabolism, inflammation and blood glucose control, that are important in the development of type 2 diabetes and its complications. Seventy-six adults (42 males, 34 females) were recruited from a group of diabetes patients who had visited the medical center for treatment. Data on anthropometric characteristics and dietary intake of thiamine, riboflavin, niacin, vitamin B₆ and folate were collected using 24-hour diet recall and the CAN Pro 4.0 program. Also, data on clinical indices such as serum lipids, blood pressure, high-sensitivity C-reactive protein (hs-CRP), hemoglobin A1c (HbA1c) and homeostasis model assessment 2-insulin resistance (HOMA2-IR) were collected and analyzed for correlation with dietary vitamin B intake. Results from the dietary intake survey showed that riboflavin and folate intake (in males) and folate intake (in females) were below the Dietary Reference Intake for Koreans. Statistical analysis revealed a negative correlation between hs-CRP and dietary intake of B vitamins. Riboflavin intake was inversely associated with systolic blood pressure after adjustments for age, BMI, smoking, alcohol consumption, exercise, ingestion of diabetes mellitus medication and energy intake (p<0.05). Our results suggest that dietary vitamin B may influence inflammation and consequently may help in better management of type 2 diabetes.

• Nutrition Research and Practice
• /
• v.9 no.4
• /
• pp.350-357
• /
• 2015

BACKGROUND/OBJECTIVES: The prevalence of nonalcoholic fatty liver disease (NAFLD) has increased worldwide in parallel with overnutrition characterized by high-fat and high-carbohydrate intake. Our objective was to establish, in 16 weeks, a model of NAFLD in Wistar pathogen-free rats following four dietary types. MATERIALS/METHODS: Forty (6 weeks old) healthy Wistar male rats, weighing an average of 150 g were randomly divided into four groups of ten and assigned a diet with the same quantity (15 g/rat/day), but with different composition. The moderate-fat (MF) group was fed a moderate-fat diet (31.5% fat and 50% carbohydrates), the high-fat (HF) group was fed a fat-rich diet (51% fat), the high-sucrose (HS) group and the high-fructose (HFr) group were fed a carbohydrate-rich diet (61%). The carbohydrate contents of the HS group was composed of 60.3% sucrose while that of the HFr group was composed of 59.3% fructose. RESULTS: At week 16, the HF group had the highest percentage of cells enriched in fat (40%) and the highest weight and liver weight (P < 0.05). The HFr group showed significantly higher levels of serum triglycerides, alanine aminotransferase and adiponectin at week 16 as compared to week 1 (P < 0.05). CONCLUSIONS: The 15 g/rat/day diet composed of 51% fat or 61% carbohydrates enriched mainly in fructose may induce characteristics of NAFLD in rats.

• Interaction and multiscale mechanics
• /
• v.2 no.3
• /
• pp.321-332
• /
• 2009

Recent development in composites containing phase-transforming particles, such as vanadium dioxide or barium titanate, reveals the overall stiffness and viscoelastic damping of the composites may be unbounded (Lakes et al. 2001, Jaglinski et al. 2007). Negative stiffness is induced from phase transformation predicted by the Landau phase transformation theory. Although this unbounded phenomenon is theoretically supported with the composite homogenization theory, detailed stress analyses of the composites are still lacking. In this work, we analyze the stress distribution of the Hashin-Shtrikman (HS) composite and its two-dimensional variant, namely a circular inclusion in a square plate, under the assumption that the Young's modulus of the inclusion is negative. Assumption of negative stiffness is a priori in the present analysis. For stress analysis, a closed form solution for the HS model and finite element solutions for the 2D composite are presented. A static loading condition is adopted to estimate the effective modulus of the composites by the ratio of stress to average strain on the loading edges. It is found that the interfacial stresses between the circular inclusion and matrix increase dramatically when the negative stiffness is so tuned that overall stiffness is unbounded. Furthermore, it is found that stress distributions in the inclusion are not uniform, contrary to Eshelby's theorem, which states, for two-phase, infinite composites, the inclusion's stress distribution is uniform when the shape of the inclusion has higher symmetry than an ellipse. The stability of the composites is discussed from the viewpoint of deterioration of perfect interface conditions due to excessive interfacial stresses.

• Journal of the Korean Society of Marine Environment & Safety
• /
• v.20 no.2
• /
• pp.241-246
• /
• 2014

The purpose of this study is to investigate the flow characteristics around underwater triangular structure with various inclination and Reynolds number. A flow fields around the triangular structure model were measured by visualization method and PIV in the circulating water channel. The result of the experiment is where the triangular structure that has a inclination of $45^{\circ}$ and the reynolds number at $Re=2.9{\times}10^3$ showed rising velocity component to 2.7 times of the structure height. When the reynolds number is steady and when the inclination is greater the descending velocity component of the structure's rears current form is greatly shown and for the areas where it's more than y/hs=1.75 has a change in the angle of inclination but it doesn't give a great effect to it.

• Journal of the Korean Applied Science and Technology
• /
• v.39 no.1
• /
• pp.18-26
• /
• 2022

The present study aimed to evaluate the effect of Eucommia ulmoides extracts on rheumatoid arthritis biomarker in a CIA-induced DBA/1 mice. For evaluation, Eucommia ulmoides extracts was administered orally at dose of 100 mg/kg/day for 4 weeks after production of an animal model of rheumatoid arthritis and we confirmed the treatments' effects based on serum biomarker, radiological, structural parameter analysis. Compared to the negative control group, the Eucommia ulmoides extracts treatments significantly reduced the serum level of inflammation and immunoglobulin markers (i.e., TNF-α, IgG, and hs-CRP), and significantly decreased the monocyte count of white blood cells. Furthermore, the Eucommia ulmoides extracts treatments effectively preserved the joint destruction, and little the joint deformation. Moreover, compared to the negative control group, the Eucommia ulmoides extracts treatments increased the bone volume, and significantly decreased bone inflammation. The results indicate that the Eucommia ulmoides extracts improved rhrumatoid arthritis symptoms. Thus, the Eucommia ulmoides extracts may be a novel therapeutic option for the management of rheumatoid arthritis.