• Title/Summary/Keyword: H143

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Biomechanical Analysis for the Development of Windlass Mechanism for Trail-walking Shoe (윈들라스 메커니즘을 적용한 트레일 워킹화 개발을 위한 생체역학적 분석)

  • Park, Jong-Jin;Park, Seung-Bum
    • Korean Journal of Applied Biomechanics
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    • v.25 no.4
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    • pp.489-498
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    • 2015
  • Objective : The purpose of this study was to analyze the effects of the windlass mechanism in trail-walking shoe prototypes that can effectively support arches. A study of these effects should help with the development of a first-rate trail-walking shoe development guide for the distribution of quality information to consumers. Methods : The subjects were ten adult males who volunteered to participate in the study. Shoes from three companies, which will be referred to as Company S (Type A), Company M (Type B), and Company P (Type C), were selected for the experiment. The subjects wore these shoes and walked at a speed of 4.2 km/h, and as they tested each shoe, the contact area, maximum pressure average, and surface force were all measured. Results : Shoe Type A showed a contact area of $148.78{\pm}4.31cm^2$, Type B showed an area of $145.74{\pm}4.1cm^2$, and Type C showed an area of $143.37{\pm}4.57cm^2$ (p<.01). Shoe Type A demonstrated a maximum average pressure of $80.80{\pm}9.92kPa$, Type B an average of $85.72{\pm}11.01kPa$, and Type C an average of $89.12{\pm}10.88bkPa$ (p<.05). Shoe Type A showed a ground reaction force of $1.13{\pm}0.06%BW$, Type B a force of $1.16{\pm}0.04%BW$, and Type C a force of $1.16{\pm}0.03%BW$ (p<.05). Conclusion : The Type A trail-walking shoe, which was designed with a wide arch from the center of the forefoot to the front of the rearfoot showed excellent performance, however, more development and analysis of the windlass mechanism for a variety of arch structures is still necessary.

The Study of Structural Relationship of Consumer Awareness in Fair Trade Product (공정무역제품에 대한 소비자 인식의 구조적 관계에 관한 연구)

  • Ock, Jung-Won
    • Management & Information Systems Review
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    • v.34 no.1
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    • pp.143-162
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    • 2015
  • The purpose of this study was to investigate the structure relationship through the empirical analysis between the factors that affect the perception of the consumer for the fair trade products. Most of the previous research on consumer reactions associated with fair trade products are limited to certain situations that are characterized as exploratory look. Specifically, this study suitability as a key factor associated with consumer awareness of the fair trade products through review of the literature, reliability, consumption values, attitudes and purchase intention presentation, and was to examine the effect relationship. Although most of the theories are employed through empirical analysis, the relationship between reliability and purchase intention (H5), there was no statistically significant effect relationship. The results of this study are expected to provide significant implications in the establishment of the company's marketing strategy to sell fair trade products with the comprehensive understanding of the consumer recognition of the fair trade products.

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Cultural Conditions for Mycelial Growth and Molecular Phylogenetic Relationship in Different Wild Strains of Schizophyllum commune

  • Alam, Nuhu;Cha, Youn-Jeong;Shim, Mi-Ja;Lee, Tae-Soo;Lee, U-Youn
    • Mycobiology
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    • v.38 no.1
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    • pp.17-25
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    • 2010
  • The common split-gilled mushroom, Schizophyllum commune is found throughout the world on woody plants. This study was initiated to evaluate conditions for favorable vegetative growth and to determine molecular phylogenetic relationship in twelve different strains of S. commune. A suitable temperature for mycelial growth was obtained at $30^{\circ}C$. This mushroom grew well in acidic conditions and pH 5 was the most favorable. Hamada, glucose peptone, Hennerberg, potato dextrose agar and yeast malt extract were favorable media for growing mycelia, while Lilly and glucose tryptone were unfavorable. Dextrin was the best and lactose was the less effective carbon source. The most suitable nitrogen sources were calcium nitrate, glycine, and potassium nitrate, whereas ammonium phosphate and histidine were the least effective for the mycelial growth of S. commune. The genetic diversity of each strain was investigated in order to identify them. The internal transcribed spacer (ITS) regions of rDNA were amplified using PCR. The size of the ITS1 and ITS2 regions of rDNA from the different strains varied from 129 to 143 bp and 241 to 243 bp, respectively. The sequence of ITS1 was more variable than that of ITS2, while the 5.8S sequences were identical. A phylogenetic tree of the ITS region sequences indicated that the selected strains were classified into three clusters. The reciprocal homologies of the ITS region sequences ranged from 99 to 100%. The strains were also analyzed by random amplification of polymorphic DNA (RAPD) with 20 arbitrary primers. Twelve primers efficiently amplified the genomic DNA. The number of amplified bands varied depending on the primers used or the strains tested. The average number of polymorphic bands observed per primer was 4.5. The size of polymorphic fragments was obtained in the range of 0.2 to 2.3 kb. These results indicate that the RAPD technique is well suited for detecting the genetic diversity in the S. commune strains tested.

Drug Interaction of Cimetidine and Cyclosporine in Human (정상지원자에서 Cimetidine과 Cyclosporine의 약물상호작용)

  • Choi, In;Choi, Jun Shik
    • Korean Journal of Clinical Pharmacy
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    • v.7 no.2
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    • pp.51-63
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    • 1997
  • The effect of cimetidine administration on the pharmacokinetic parameters of cyclosporine were determined in healthy voluteers. This study was performed in 10 volunteers of age ranged 22-48 years and body weight 48-62 kg. This study was performed with cross-over design. Mono cyclosporine and cyclosporine metabolites was extracted from whole blood analysed by fluororescence polarization immune assay (TDX-FLX, Abbott). After coadministration of cimetidine (300 mg) with cyclosporine (300 mg) orally, maximum concentration of mono cyclosporine was significantly increased $1221{\pm}143\;ng/ml\;to\;1562{\pm}184\;ng/ml$ (P<0.05), area under the time curve of cyclosporine (12 hr) also was significantly increased $7478{\pm}829\;ng/ml{\cdot}hr\;to\;9721{\pm}879\;ng/ml{\cdot}hr$ (P<0.05) and absolute baioavailability of cyclosporine was increased $50\pm5.6\%\;to\;57.6\pm6.1\%\;(P<0.05)$ compared to control group. The blood concentrations of cyclopsorine metabolites were significantly decrased (P<0.05) after coadministration of cimetidine. In cimetidine pretreated group, blood mono cyclosporine concentrations were increased significan시y $1220.0\pm203.00\;ng/ml\;to\;1510.0\pm204.00\;ng/ml$ compared with control group (P<0.05). In the mono cyclosporine pharmacokinetic parameter after oral administration absorption rate and maximum concentration were significantly higher in cimetidine coadministered and pretreated group than control group (P<0.05). The ratio of metabolites and mono cyclosporine concentrations was decreased significantly from $70.8\%\;in\;control\;to\;34.8\%$ in coadministration of cimetidine orally. As matter of facts these reults are considered to inhibition of cyclosporine hepatic metabolism and increasing of cyclosporine absorption rate in gastrointestinal tract because of maintaining cyclosporine stability in elevated gastric pH by cimetidine. We considered, it appeares that cimetidine increase bioavailability of cyclosporine by increasing oral absorption and by decreasing hepatic clearance. But the absorption and clearance of cyclosporine was highly variable individually, and therefore we consider that cyclosporine blood level monitoring would be essential in patients with cimetidine co-administration.

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Changes of Microbial Population in the Rumen of Dairy Steers as Influenced by Plant Containing Tannins and Saponins and Roughage to Concentrate Ratio

  • Anantasook, N.;Wanapat, M.;Cherdthong, A.;Gunun, P.
    • Asian-Australasian Journal of Animal Sciences
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    • v.26 no.11
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    • pp.1583-1591
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    • 2013
  • The objective of this study was to investigate microbial population in the rumen of dairy steers as influenced by supplementing with dietary condensed tannins and saponins and different roughage to concentrate ratios. Four, rumen fistulated dairy steers (Bos indicus) were used in a $2{\times}2$ factorial arrangement in a $4{\times}4$ Latin square design. The main factors were two roughage to concentrate ratios (R:C, 60:40 and 40:60) and two supplementations of rain tree pod meal (RPM) (0 and 60 g/kg of total DM intake). Chopped 30 g/kg urea treated rice straw was used as a roughage source. All animals received feed according to respective R:C ratios at 25 g/kg body weight. The RPM contained crude tannins and saponins at 84 and 143 g/kg of DM, respectively. It was found that ruminal pH decreased while ruminal temperature increased by a higher concentrate ratio (R:C 40:60) (p<0.05). In contrast, total bacterial, Ruminococus albus and viable proteolytic bacteria were not affected by dietary supplementation. Numbers of fungi, cellulolytic bacteria, Fibrobactor succinogenes and Ruminococus flavefaciens were higher while amylolytic bacteria was lower when steers were fed at 400 g/kg of concentrate. The population of Fibrobactor succinogenes, was found to be higher with RPM supplementation. In addition, the use of real-time PCR technique indicated that the population of protozoa and methanogens were decreased (p<0.05) with supplementation of RPM and with an increasing concentrate ratio. Supplementation of RPM and feeding different concentrate ratios resulted in changing the rumen microbes especially, when the animals were fed at 600 g/kg of concentrate and supplemented with RPM which significantly reduced the protozoa and methanogens population.

Degradation of the Parasporal Crystal Proteins of Bacillus thuringiensis in Gut Juice of Some Insects (곤충소화액에서 Bacillus thuringiensis의 내독소 단백질의 분해)

  • Kim, Yeong-Hun;Kim, Sang-Hyeon;Gang, Seok-Gwon
    • Journal of Sericultural and Entomological Science
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    • v.34 no.1
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    • pp.41-48
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    • 1992
  • Dissolution and degradation of the parasporal crystal proteins produced from B. thuringiensis var. kurstaki, B. thuringiensis var. dendrolimus and B. thuringiensis var. aizawai were investigated. SDS-polyacrylamide gel electrophoresis analysis showed that the crystals contained major protein with molecular weight of approximately 134 kDa for B. thuringiensis var. aizawai 143 kDa for B. thuringiensis var. kurstaki and 149 kDa for B. thuringiensis var. dendrolimus, respectively. Crystals of three other strains were incubated alkali solutions at various pH or gut juice of Silkwarm Bombyx mori, Fall webworm Hyphantria cunea, and Common Cabbage worm Pieris rapae. When crystals of these strains were solubilized by alkali solutions, no major differences among strains B. thuringiensis could be detected. Among the strains studied, crystal protins (130-66 kDa) consist of protease resistant polypeptides in the 45-66 kDa size range when treated with gut juice of three insect species.

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Analyzing Production Data using Data Mining Techniques (데이터마이닝 기법의 생산공정데이터에의 적용)

  • Lee H.W.;Lee G.A.;Choi S.;Bae K.W.;Bae S.M.
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2005.06a
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    • pp.143-146
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    • 2005
  • Many data mining techniques have been proved useful in revealing important patterns from large data sets. Especially, data mining techniques play an important role in a customer data analysis in a financial industry and an electronic commerce. Also, there are many data mining related research papers in a semiconductor industry and an automotive industry. In addition, data mining techniques are applied to the bioinformatics area. To satisfy customers' various requirements, each industry should develop new processes with more accurate production criteria. Also, they spend more money to guarantee their products' quality. In this manner, we apply data mining techniques to the production-related data such as a test data, a field claim data, and POP (point of production) data in the automotive parts industry. Data collection and transformation techniques should be applied to enhance the analysis results. Also, we classify various types of manufacturing processes and proposed an analysis scheme according to the type of manufacturing process. As a result, we could find inter- or intra-process relationships and critical features to monitor the current status of the each process. Finally, it helps an industry to raise their profit and reduce their failure cost.

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Simultaneous Measurements of the Loss Tangent of Rutile ($TiO_2$) and the Microwave Surface Resistance of $YBa_2Cu_3O_{7-{\delta}}$ Films using Two Resonant Modes of Rutile -loaded cavity Resonator (루타일이 삽입된 유전체 공진기의 두 공진 모드를 이용한 루타일의 유전손실과 $YBa_2Cu_3O_{7-{\delta}}$ 박막의 마이크로파 표면저항 측정)

  • Lim, J.;Lee, J.H.;Kim, M.J.;Hur, J.;Lee, S.Y.
    • Progress in Superconductivity
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    • v.4 no.2
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    • pp.137-143
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    • 2003
  • In measuring the microwave surface resistance of high-Tc superconductor (HTS) films using the dielectric-loaded cavity resonator method, one of the most important factors that limit the measurement sensitivity is the measurement error in the loss tangent ($tan\delta$) of the dielectric rod placed inside the cavity. We have measured the effective surface resistance ( $R_{S}$ $^{eff}$) of$ YBa_2$$_Cu3$$_{7-{\delta}}$ (YBCO) films and the $tan\delta$ of rutile ($TiO_2$) using the 'two-tone'method suggested by Kobayashi et at. [IEEE, MTT-S Digest, 495, (2001)], which enables simultaneous measurements of both the $R_{S}$ $^{eff}$ fof HTS films and the $tan\delta$ of the rutile with high sensitivity. A rutile-loaded cavity resonator with the $TE_{012}$ and $TE_{021}$ resonant frequencies at 13.67 - 14.01 GHz is used for this purpose. At temperatures where the two modes do not couple with other modes, the $R_{S}$ $^{eff}$ of YBCO films and $tan\delta$ of rutile measured by the two-tone method appear to match well with the corresponding values measured using the reported $tan\delta$ values of sapphire within 10 %. Usefulness of the 'two-tone' method for microwave characterization of HTS films and dielectrics is discussed.d.ielectrics is discussed.ussed.

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Molecular Cloning and Characterization of a Muscle-Specific Lipase from the Bumblebee Bombus ignitus

  • Hu, Zhigang;Wang, Dong;Lu, Wei;Cui, Zheng;Jia, Jing-Ming;Yoon, Hyung-Joo;Sohn, Hung-Dae;Kim, Doh-Hoon;Jin, Byung-Rae
    • International Journal of Industrial Entomology and Biomaterials
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    • v.17 no.1
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    • pp.143-151
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    • 2008
  • A muscle-specific lipase gene of the bumblebee Bombus ignitus was cloned and characterized. This gene, which we named Bi-Lipase, consists of seven exons encoding 317 amino acid residues. Bi-Lipase possesses all the features of lipases, including GXSXG consensus motif and Ser-Asp-His catalytic triad. Expressed as a 37-kDa polypeptide in baculovirus-infected insect Sf9 cells, recombinant Bi-Lipase showed an optimal pH of 9.0 and exhibited its highest catalytic activity at $40^{\circ}C$. Furthermore, through the addition of tunicamycin to the recombinant virus-infected Sf9 cells, recombinant Bi-Lipase was found to be N-glycosylated. Northern and western blot analyses indicated that Bi-Lipase was expressed in the wing, thorax, and leg muscles. These results show that Bi-Lipase is a muscle-specific lipase, suggesting a possible role of Bi-Lipase in the utilization of lipids for muscular activity in B. ignitus.

Touch Imprint Cytology Contributed to the Frozen Section Diagnosis of Merkel Cell Carcinoma -A Case Report- (Merkel 세포 암종의 동결절편진단에 있어 접착도말의 유용성 -1예 보고-)

  • Yoo, Chang-Young;Lee, Youn-Soo;Park, Joo-Wan;Chang, Suk-Kang;Shim, Sang-In;Lee, Kyo-Young;Park, Gyeong-Sin
    • The Korean Journal of Cytopathology
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    • v.17 no.2
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    • pp.143-147
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    • 2006
  • Merkel cell carcinoma (MCC), a rare primary cutaneous small cell neuroendocrine carcinoma, is a tumor with distinct cytological features. In many cases, immunohistochemical staining (IHC) is required for the differentiation from other small round cell malignancies. Here we describe the cytological findings of Merkel cell carcinoma; these findings contributed to the diagnosis prior to performing IHC. A lower eyelid mass was excised and submitted for frozen section diagnosis. The frozen section diagnosis was consistent with a malignancy, but the more specific diagnosis was limited by the lack of specific histological features. Touch imprint cytology revealed a high cellularity with loosely cohesive small to large sized cells. The tumor cells showed hyperchromatic nuclei with fine chromatin and inconspicuous nucleoli, and thin-rimmed-cytoplasm including the characteristic eosinophilic button-like paranuclear inclusion, previously described as a pathognomonic cytological finding of MCC; this was not found in the H&E frozen section. In conclusion, we suggest that the touch imprint cytology may help in the differential diagnosis of small round cell neoplasms prior to performing IHC especially in frozen section diagnosis.