• Title/Summary/Keyword: CSC model

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Inhibitory Effect of Coicis Semen Composition on Inflammatory Responses in the Collagen-induced Arthritis Mouse Model

  • Moon, Jung-Won;Oh, Min-Suck
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.20 no.5
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    • pp.1311-1314
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    • 2006
  • This study was peformed to investigate possible mechanisms underlying possible effect of Coicis Semen composition (CSC) on inflammatory diseases using in vivo model of RA in the mice. Results are summarized as follows. In production of inflammatory cytokines, INF-${\gamma}$ in the spleen and IL-6 in the serum were decreased by CSC treatment. TNF-${\alpha}$ in serum was significantly decreased, IL-4 in the spleen was significantly increased by CSC treatment. In production of rheumatoid factors, IgM and IgG were significantly decreased by CSC treatment. The present data suggest that CSC treatment can improve pathological damage by CIA. So we expect that CSC should be used as a effective drugs for not only rheumatoid arthritis but also another autoimmune disease. Therefore we have to survey continuously in looking for the effective substance and mechanism in the future.

A Calibration Method of the CSC Model for Considering Material Properties of Ultra-high Performance Concrete (초고성능 강섬유 보강 콘크리트 물성 반영을 위한 소성 기반 콘크리트 CSC 모델 보정기법)

  • Gang-Kyu, Park;MinJoo, Lee;Sung-Wook, Kim;Hyun-Seop, Shin;Jae Heum, Moon
    • Journal of the Korean Recycled Construction Resources Institute
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    • v.10 no.4
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    • pp.402-410
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    • 2022
  • The present study introduces a calibration method of the CSC model implemented in the LS-DYNA program for considering the material properties of ultra-high performance concrete(UHPC). Based on previous experimental studies, various parameters, which constitute three shear failure surfaces, pressure-volumetric strain curve, fracture energy, dynamic increase factor(DIF), and so on, are modified. Then, the proposed calibration method is verified by comparing the numerical result with the experimental data through the single element analysis. In addition, based on the established finite element models, the applicability of the calibrated CSC model is examined for UHPC structures subjected to impact and blast loadings.

Antigenotoxicity of Vegetable or Fruit Extract against Cigarette Smoke Condensate (담배연기응축물의 DNA 손상작용과 야채 및 과일추출물의 보호효과)

  • Lee, Hyeong-Ju;Heo, Chan;Kim, Nam-Yee;Heo, Moon-Young
    • YAKHAK HOEJI
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    • v.55 no.3
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    • pp.251-259
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    • 2011
  • Cigarette smoke condensate (CSC) is known to be carcinogenic compound. CSC contains many organic compounds such as polycyclic aromatic hydrocarbons (PAHs), and heterocyclic amine compounds (HCAs). Reactive oxygen species (ROS) are also generated and induce oxidative DNA damage during the metabolism of CSC. The rat microsome mediated and DNA repair enzyme treated comet assays together with conventional comet assay were performed to evaluate the mechanisms of CSC genotoxicity. The organic extract of CSC induced oxidative and microsome mediated DNA damage. Vitamin C as a model antioxidant reduced DNA damage in endonuclease III treated comet assay. One of flavonoid, galangin as a CYP1A1 inhibitor, reduced DNA damage in the presence of S-9 mixture. The ethanol extracts of the mixed vegetables (BV) or the mixed fruits (BF) showed potent inhibitory effects against CSC induced DNA damage with oxidative DNA lesions and in the prescence of S-9 mixture. These results indicate that BV and BF could prevent CSC-induced cellular DNA damage by inhibiting oxidative stress and suppressing cytochrome P450 in mammalian cells.

A Study on the ITSM and CSC working together for effective business process (효과적인 업무프로세스 증대를 위한 ITSM과 CSC 연동에 관한 연구)

  • Choi Byung-Hoon;Kim Sang-Geun
    • The KIPS Transactions:PartD
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    • v.13D no.3 s.106
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    • pp.405-414
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    • 2006
  • These days, business environments are rapidly change and companies are taking the pressure about a customer value enhance to the continuance from the market. Therefore companies propel various innovative and strategic initiatives for a customer value enhancement. Also Information Technology is rapidly becoming part of our everyday lives due to its fast development, the functions and responsibilities of CSC(Consolidated Service Center) are undergoing revolutionary change. The function of sales organization based on the manpower and human networks are gradually shrinking, and CSC is slowly establishing itself as the company's core parts as its function expands and its operations are in the spotlights. Among these, many organizations are currently introducing ITSM concept for primary processes as a means of achieving synergy in operational excellence, reducing costs and improving service quality. In this thesis, we propose an extended CSC, which is applied ITIL Process to traditional BMP. It also needs to manage more effectively business process model, to modeling rapidly changing business process, and to developing its business application programs whenever and whatever it is changed. The ITSM(IT Service Management), which is an ITIL tool, effectively managing for dynamically changing the business process.

Shear capacity equation for channel shear connectors in steel-concrete composite beams

  • Paknahad, Masoud;Shariati, Mahdi;Sedghi, Yadollah;Bazzaz, Mohammad;Khorami, Majid
    • Steel and Composite Structures
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    • v.28 no.4
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    • pp.483-494
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    • 2018
  • In this research the effect of high strength concrete (HSC) on shear capability of the channel shear connectors (CSC) in the steel concrete composite floor system was estimated experimentally and analytically. The push-out test was carried out for assessing the accurateness of the proposed model (nonlinear and finite element model) for the test specimens. A parametric analysis was conducted for predicting the shear capacity of the connectors (CSC) in the HSC. Eight push-out specimens of different sizes with different strength levels were tested under the monotonic loading system. The aim of this study was to evaluate the efficacy of the National Building Code of Canada (NBC) of Canada for analysing the loading abilities of the CSC in the HSC. Using the experimental tests results and verifying the finite element results with them, it was then confirmed by the extended parametric studies that the Canadian Design Code was less efficient for predicting the capacity of the CSC in the HSC. Hence, an alternative equation was formulated for predicting the shear capacity of these connectors during the inclusion of HSC for designing the codes.

Critical diagnostic and cancer stem cell markers in neoplastic cells from canine primary and xenografted pulmonary adenocarcinoma

  • Warisraporn, Tangchang;YunHyeok, Kim;Ye-In, Oh;Byung-Woo, Lee;Hyunwook, Kim;Byungil, Yoon
    • Journal of Veterinary Science
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    • v.23 no.6
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    • pp.89.1-89.7
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    • 2022
  • It is challenging to diagnose metastatic tumors whose cellular morphology is different from the primary. We characterized canine primary pulmonary adenocarcinoma (PAC) and its xenografted tumors by histological and immunohistochemical analyses for critical diagnostic and cancer stem cell (CSC) markers. To generate a tumor xenograft model, we subsequently transplanted the tissue pieces from the PAC into athymic nude mice. Immunohistochemical examination was performed for diagnostic (TTF-1, Napsin A, and SP-A) and CSC markers (CD44 and CD133). The use of CSC markers together with diagnostic markers can improve the detection and diagnosis of canine primary and metastatic adenocarcinomas.

Developing APC for Weighting Quality Attributes (품질 속성의 가중치 선정을 위한 APC에 관한 연구)

  • Song, Hae Geun
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.36 no.3
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    • pp.8-16
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    • 2013
  • Determining relative importance among many quality attributes under financial constraints is an important task. The weighted value of an attribute particularly in QFD, will influence on engineering characteristics and this will eventually influence the whole manufacturing process such as parts deployment, process planning, and production planning. Several scholars have suggested weighting formulas using CSC (Customer Satisfaction Coefficient) in the Kano model. However, previous research shows that the validity of the CSC approaches has not been proved systematically. The aim of the present study is to address drawbacks of CSC and to develop APC (Average Potential Coefficient), a new approach for weighting of quality attributes. For this, the current study investigated 33 quality attributes of e-learning and conducted a survey of 375 university students for the results of APC, the Kano model, and the direct importance of the quality attributes. The results show that the proposed APC is better than other approaches based on the correlation analysis with the results of direct importance. An analysis of e-leaning's quality perceptions using the Kano model and suggestions for improving e-learning's service quality are also included in this study.

Analysis of Consumer's Perception and Product Satisfaction·Dissatisfaction with Urban Outdoor Wear based on Kano Model: Focused on University Students (어반 아웃도어웨어에 대한 소비자 인식과 Kano 모델을 적용한 제품 만족·불만족에 대한 연구: 대학생을 중심으로)

  • Jun, Daegeun;Kim, Heekyoung;Kim, Hyeran;Park, Soonjee
    • Fashion & Textile Research Journal
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    • v.18 no.1
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    • pp.103-112
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    • 2016
  • This research was designed to figure out the perception and attitude of university students toward urban outdoor wear and to provide the guidelines for product quality improvement using Kano model. A total of 270 responses were analyzed by SPSS 20.0 through frequency and factor analysis. Respondents' levels for outdoor activity & outdoor products possession being still low, steady growth in urban outdoor wear market is expected. A total of eight quality factors were identified through factor analysis; suitability, production quality, functionality, ease of care, fabric performance, portability, fashionability, and symbolism. Based on Kano model, quality factors of urban outdoor wear were categorized into three groups: one-dimensional; indifferent; and must-be quality factor. It was found that consumers were satisfied with urban outdoor wear only when it meets the needs for suitability for body types and ease of care, meaning that manufactures should be cautious not to lose these features. Being must-be quality factor, production quality(form stability, quality of subsidiary materials), and fabric performance such as colorfastness should be basically satisfied. The relative importance of each quality feature on satisfaction/dissatisfaction was investigated using CSC(customer satisfaction coefficient). Based on the CSC, every item was classified again. Attractive quality features with large CSC were shown in suitability factor. Must-be quality features with small CSC were mainly shown in functionality and fabric performance factors. These findings imply that manufactures of urban outdoor wear should not only maintain the production quality but also focus on suitability features to differentiate their product with previous products.

A manufacturing cell design model and cell design support system based on workload (작업부하에 의한 생산셀 설계 모델과 셀설계지원시스템)

  • 문치웅;이상용
    • Korean Management Science Review
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    • v.12 no.1
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    • pp.51-60
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    • 1995
  • This paper presents a workload based model and cell design support system (CDSS) in manufacturing cell design. The proposed model consider manufacturing factor such as machine capacity, production volume, process time, and cell size. Based on those information, workload is calculated and according to the workload, the relationship between machine and part is represented by the workload matrix. To form the manufacturing cell, correlation similarity coefficient (CSC) among machines are calculated and a pair of machines that has the highest value of CSC is assigned to a machine cell. Repeat the above steps until the desired manufacturing cells are obtained. Finally, a cell design support system that could increase the efficiency in the application of a proposed model is developed. The proposed model and CDSS are illustrated by a numerical example.

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Cancer Stem Cells and Response to Therapy

  • Tabarestani, Sanaz;Ghafouri-Fard, Soudeh
    • Asian Pacific Journal of Cancer Prevention
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    • v.13 no.12
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    • pp.5947-5954
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    • 2012
  • The cancer stem cell (CSC) model states that cancers are organized in cellular hierarchies, which explains the functional heterogeneity often seen in tumors. Like normal tissue stem cells, CSCs are capable of self-renewal, either by symmetric or asymmetric cell division, and have the exclusive ability to reproduce malignant tumors indefinitely. Current systemic cancer therapies frequently fail to eliminate advanced tumors, which may be due to their inability to effectively target CSC populations. It has been shown that embryonic pathways such as Wnt, Hedgehog, and Notch control self-renewal and cell fate decisions of stem cells and progenitor cells. These are evolutionary conserved pathways, involved in CSC maintenance. Targeting these pathways may be effective in eradicating CSCs and preventing chemotherapy or radiotherapy resistance.