• 제목/요약/키워드: Remodeling factors

검색결과 243건 처리시간 0.031초

도시철도 차량기지 혁신사례 분석 (A case study on innovation in urban railway depot)

  • 정수영;박수중;이성권;이승환
    • 한국철도학회:학술대회논문집
    • /
    • 한국철도학회 2010년도 춘계학술대회 논문집
    • /
    • pp.104-109
    • /
    • 2010
  • Management innovation as a strategic alternative to create competitive advantages in the global market, is being actively progressed by conglomerates such as Samsung, LG and Toyoda as they cut a brilliant figure in the 21 century by using various innovation methods. However, the domestic railway sectors, in particular urban railway depots have neglected management innovation as they undertake Operation and Management in non-competitive settings of a corporate enterprise. This paper analyzes the critical success factors that have switched the most obsolete depots to a benchmark model for domestic railway depots based on the remodeling businesses undertaken in Gunja rolling stock maintenance office, Korea's first urban railway depot, along with 5S 6sigma program.

  • PDF

Autotaxin의 암세포 이동 촉진 활성은 phosphodiesterase catalytic site에 연결 되어있다

  • 이회영;장기철;강영진
    • 한국응용약물학회:학술대회논문집
    • /
    • 한국응용약물학회 1996년도 제4회 추계심포지움
    • /
    • pp.27-31
    • /
    • 1996
  • 암환자의 생명을 가장 위협하는 암세포의 전이는 숙주와 암세포의 상호작용을 포함하는 여러단계의 연쇄적인 과정이다. 전이의 발생은 하나의 세포나 집단의 암세포가 첫번째 암발생 부위에서 분리되어 국소적으로 침투하고 순환기계에 들어가 다른곳에 흡착 후 다른 장기의 interstitium과 parcnchyma에 입출(extravasate)하게 되며 2차적 colony로서 자라나 stroma나 basement membrine과 같은 생물학적 울타리를 파괴한다. 전이의 각단계에서 암세포는 면역세포의 공격을 피하여야만 한다. 세포의 이동은 태아의 생성(embryonic events), 성장세포의 재조함(remodeling), 상처 치유(wound healing), 맥관형성 (angiogenesis), 면역 방어 (immune defence)의 경우에 아주 중요한 역활을 한다. 정상적인 경우에 세포의 이동은 잘 통제가 되지만 암세포의 이동은 비정상적으로 통제가 되거나 자체내에서 통제가 된다. 암세포는 숙주에서 생산되는 scatter factors, growth factor, extracellular matrix components, 그리고 암세포에서 발생되는 autocrine utility factors를 포함한 여러가지 인자에 의해 영향을 받는다.

  • PDF

The influence of thread geometry on implant osseointegration under immediate loading: a literature review

  • Ryu, Hyo-Sook;Namgung, Cheol;Lee, Jong-Ho;Lim, Young-Jun
    • The Journal of Advanced Prosthodontics
    • /
    • 제6권6호
    • /
    • pp.547-554
    • /
    • 2014
  • Implant success is achieved by the synergistic combination of numerous biomechanical factors. This report examines the mechanical aspect of implants. In particular, it is focused on macrodesign such as thread shape, pitch, width and depth, and crestal module of implants. This study reviews the literature regarding the effect of implant thread geometry on primary stability and osseointegration under immediate loading. The search strategy included both in vitro and in vivo studies published in the MEDLINE database from January 2000 to June 2014. Various geometrical parameters are analyzed to evaluate their significance for optimal stress distribution, implant surface area, and bone remodeling responses during the process of osseointegration.

패밀리 레스토랑의 물리적 환경이 고객만족에 미치는 영향 (The Effect of Physical Environment of Family Restaurants on Customers' Satisfaction)

  • 김기영;김성수;천희숙
    • 한국조리학회지
    • /
    • 제13권2호
    • /
    • pp.22-34
    • /
    • 2007
  • We researched the previous study about the restaurant's physical environment and had made up questionnaires. The purpose of this study is to analyze the effect of physical facilities of family restaurants on customers' satisfaction. The result was as follows: First, customers visited with friends or family irrespective of days $2{\sim}3$ times a month. Second, the physical environment factors of family restaurants were interior design, interior, making atmosphere and exterior. Third, it was the interior factor(0.268), making atmosphere factor(0.353) and exterior factor(0.244) that affected customers' satisfaction in family restaurants(p<0.001). $R^2$ change was 0.659 and the regression model was suited to our study(F=56.475). To increase customers' satisfaction, the physical environment of family restaurants needs remodeling in proper time.

  • PDF

ADAM and ADAMTS family proteins and their role in the colorectal cancer etiopathogenesis

  • Przemyslaw, Leszczynski;Boguslaw, Hendrich Andrzej;Elzbieta, Szmida;Malgorzata, Sasiadek Maria
    • BMB Reports
    • /
    • 제46권3호
    • /
    • pp.139-150
    • /
    • 2013
  • The ADAM and ADAMTS families, also called adamalysins belong to an important group of extracellular matrix proteins. The ADAMs family belong to both the transmembrane and secreted proteins, while ADAMTS family only contains secreted forms. Adamalysins play an important role in the cell phenotype regulation via their activities in signaling pathways, cell adhesion and migration. The human proteome contains 21 ADAM, and 19 ADAMTS proteins, which are involved in extracellular matrix remodeling, shedding of various substrates such as: adhesion ligands, growth factors, their receptors and diverse cytokines. Recent studies provide evidence that adamalysins play a crucial role in colorectal cancer (CRC) etiopathogenesis. It seems possible that adamalysins might be used as CRC prediction markers or potential pharmaceutical targets.

소 수정란 핵 이식에 영향을 주는 요인 (The Factors Affecting Cloning Bovine Embryo)

  • 임홍순;박노형;김흥률;김덕임
    • 한국수정란이식학회지
    • /
    • 제9권1호
    • /
    • pp.31-41
    • /
    • 1994
  • 핵 이식 기술을 이용한 cloning 송아지 생산이 처음 보고(Prather et al., 1987) 된 후, 소 수정란 Cloning에 대한 많은 연구가 분자 생물학 등 여러 분야에서 꾸준히 계속되고 있다. 이 기술은 빈우의 번식 능력을 향상시켜 유전적 개량량을 증대할 수 있는 번식과 육종을 위한 도구로써 많은 잠재력을 지니고 있다. 최근 핵 이식 기술을 이용하여 유전적으로 우수한 빈우로부터 수천개의 수정란을 생산하여, 이들 수정란에게 생산된 송아지가 번식 축군으로 공시되어 있으므로, 그 결과가 주목되나 아직까지는 비용이 많이 들고 송아지 생산 효율이 저조하므로, 가까운 장래에 일반 양축가에 이용될 가능성이 낮다. 그러나 이 기술의 실용화를 위하여 선결되어야 할 많은 문제점들 중, 지난 몇 년 동안 많은 연구기관에서 수행된 활발한 연구의 결실로써, 난포란 제핵, cell fusion 과 oocyte activation의 방법등 주요 장애 요인들이 점차 극복되면서 실용화를 위한 접근이 예견되어지며, 구미의 일부 개량 기관에서는 이를 상업화 하기 위한 여건을 다지고 있다. 그러므로 이 Review에서는 fllicular dynamics, 난포란의 성숙, cell cycle, 난포란 제핵, cell fusion과 oocyte activation, 이식후 핵의 remodeling과 reprogramming에 대한 현재까지의 보고된 자료를 기초로 그 기본 원리를 재고하는데 초점을 맞추었다.

  • PDF

표준부하모델을 이용한 설계 변수에 따른 표준부하량 분석 (A Study on Standard Heating and Cooling Load according to Design Factors using Prototypical Load Model)

  • 김권예;배상무;남유진
    • 한국지열·수열에너지학회논문집
    • /
    • 제17권1호
    • /
    • pp.1-13
    • /
    • 2021
  • Before newly-built building and building remodeling, it is important to predict and analyze building energy performance through energy simulation programs. Nevertheless, simulation results widely vary depending on individual user experience and input values. Therefore, this study uses prototypical building model, a versatile tool in building energy modeling, simulation and research for researchers and policy-makers, and ASHRAE standards. Then, it analyzed the changes in design type (roof type, number of floors) for the base case. As the result, it was found that the gap of annual energy demand per between them is maximally 9.1%.

Inhibition of IL-1$\beta$ and IL-6 in osteoblast-like cell by Isoflavones extracted from Sophorae Fructus and its potential role in preventing from osteoporosis

  • Joo, Seong-Soo;Won, Tae-Joon;Lee, Min-Won;Choi, Young-Wook;Lee, Do-Ik
    • 대한약학회:학술대회논문집
    • /
    • 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2-2
    • /
    • pp.140.2-140.2
    • /
    • 2003
  • Isoflavone found in Leguminosae is one of natural phytoestrogens and its effect on bone remodeling is one of key investigational interests in terms of estrogen replacement therapy (ERT). As commonly known, osteoporosis is one of hormonal deficiency diseases, especially in menopausal women. When estrogen is blocked, local factors such as 1L-1$\beta$ and IL-6 that are related in bone resorption are increased and enhance osteoclastogenesis, which is responsible for bone resorption. In the present study, we investigated the effect of isoflavones (Isocal) extracted from Sophorae Fructus on bone resorption in vitro. (omitted)

  • PDF

Isoflavones extracted from Sophorae Fructus upregulate the growth factors, IGF-I and TGF-$\beta$ in MG-63 cells

  • Joo, Seong-Soo;Kang, Hee-Chul;Lee, Min-Won;Choi, Young-Wook;Lee, Do-Ik
    • 대한약학회:학술대회논문집
    • /
    • 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2-2
    • /
    • pp.140.3-141
    • /
    • 2003
  • Isoflavones have been a central subject in natural phytoestrogens found in Leguminosae. Their effects on bone formation and remodeling are an important turning point in that they can act like estrogen by binding on estrogen receptors on target cell surface. We, therefore, believed that isoflavones may be applied in estrogen deficiency disease such as osteoporosis in terms of estrogen replacement therapy (ERT). As commonly known, osteoporosis is one of hormonal deficiency diseases, especially in menopausal women. (omitted)

  • PDF

Genetic approaches toward understanding the individual variation in cardiac structure, function and responses to exercise training

  • Kim, Minsun;Kim, Seung Kyum
    • The Korean Journal of Physiology and Pharmacology
    • /
    • 제25권1호
    • /
    • pp.1-14
    • /
    • 2021
  • Cardiovascular disease (CVD) accounts for approximately 30% of all deaths worldwide and its prevalence is constantly increasing despite advancements in medical treatments. Cardiac remodeling and dysfunction are independent risk factors for CVD. Recent studies have demonstrated that cardiac structure and function are genetically influenced, suggesting that understanding the genetic basis for cardiac structure and function could provide new insights into developing novel therapeutic targets for CVD. Regular exercise has long been considered a robust nontherapeutic method of treating or preventing CVD. However, recent studies also indicate that there is inter-individual variation in response to exercise. Nevertheless, the genetic basis for cardiac structure and function as well as their responses to exercise training have yet to be fully elucidated. Therefore, this review summarizes accumulated evidence supporting the genetic contribution to these traits, including findings from population-based studies and unbiased large genomic-scale studies in humans.