• Title/Summary/Keyword: 장기인

Search Result 15,453, Processing Time 0.037 seconds

선택적 세포 패터닝 기술

  • Baek, Chang-Yun;Min, Jun-Hong
    • Journal of the KSME
    • /
    • v.55 no.11
    • /
    • pp.46-52
    • /
    • 2015
  • 인공장기 등 다양한 세포관련 연구를 수행할 때 요구되는 세포공배양에서 세포를 2D/3D 패터닝하는 기술은 장기를 모사하기 위한 필수적인 공정 중의 하나로 간주된다. 그러므로 이 글에서는 가장 간단하게 세포 및 표면을 이용하여 세포를 패턴화하고, 공배양할 수 있는 방법들에 대하여 설명하고자 한다.

  • PDF

한국 항공기산업의 미래를 생각하며

  • O, Se-Cheol
    • Defense and Technology
    • /
    • no.12 s.166
    • /
    • pp.14-17
    • /
    • 1992
  • 우리도 정상적인 항공기산업의 발전을 위해서는 선진국의 경우처럼 정부가 항공기 산업의 중요성과 육성조건의 특이성을 충분히 인식해서, 확고하고 대담한 장기적인 정책을 세워 지원을 해주지 않으면 별도리가 없는 것입니다 그러기 위해서는 우리도 외국에서의 예와 같이 항공기 관련업체들이 공동출자등을 통해 하나의 국민기업 형태의 회사를 설립해서, 국가가 장기로 자금지원을 하는 방법이 바람직할 것입니다

  • PDF

노블리스 오블리주-장기적 파트너십

  • Jeong, Seon-Hui
    • Venture DIGEST
    • /
    • s.41
    • /
    • pp.17-17
    • /
    • 2004
  • 공익연계 마케팅에서 선두주자들의 공통점은 한두 개의 공익사업에 집중해 장기적으로 캠페인을 전개한다는 것이다. 미국의 식료품사인 ConAgra는 여러 공익사업에 기부하던 관행에서 벗어나 전략적으로 하나의 이슈에 집중하여, 직원들을 결집하고 주 고객인 음식점과 소매식료품상들과의 관계를 더욱 밀착 시키려고 했다. 그런 의도로 탄생한 것이 'Feeding Children Better' 캠페인이다. 이 캠페인은 장기간 프로그램으로서 미국의 모든 어린이들을 기아로부터 해방시키려는 프로그램이었다.

  • PDF

세계 자동차 타이어산업 전망

  • Korea Tire Manufacturers Association
    • The tire
    • /
    • s.119
    • /
    • pp.40-51
    • /
    • 1985
  • 본고는 84년 일본 Exxon Chemical 에서 조사, 발표한 전세계 지역별 타이어 수급실적 및 장기예측을 요약정리한 것이다. 특히 본자료에서는 타이어산업의 년간평균증가율의 장기전망과 타이어 수출입동향, 또 Radial 타이어와 Tubeless 타이어의 생산비율 등을 추정분석하였다.<편집자주>

  • PDF

아시아 ㆍ태평양제국 타이어산업전망

  • Korea Tire Manufacturers Association
    • The tire
    • /
    • s.113
    • /
    • pp.46-50
    • /
    • 1984
  • 본고는 최근 일본 Exxon Chemical에서 조사, 발표한 아시아ㆍ태평양지역국가들의 타이어ㆍ튜브 생산실적 및 장기예측을 요약정리한 것이다. 특히 본자료에서는 타이어산업과 밀접한 관계가 있는 자동차 생산ㆍ출하실적 및 보유대수를 장기추정하고 있으며 또한 Radial 타이어와 Tubeless타이어의 생산비율도 추정분석 하였다. <편집자주>

  • PDF

비대칭적 의존구조하의 장기거래 지향성의 결정요인에 관한 연구

  • 권영식;임영균
    • Proceedings of the Korean DIstribution Association Conference
    • /
    • 1997.07a
    • /
    • pp.189-212
    • /
    • 1997
  • 장기 거래관계 내지는 협력관계, 그리고 이를 뒷받침 하는 관계규범, 거래윤리와 같은 개념은 90년대에 들어 유통분야의 학문적 연구대상으로 가장 중요하게 부각되고 있다(Dwyer, Schurr, and Oh 1987; Anderson and Weitz 1992; Ganesan 1994; Kalwani and Narayandas 1995; Kumar, Scheer, and Steenkamp 1995a,b). (중략)

  • PDF

People Inside - 장기윤 원장(한국식품안전관리인증원)

  • Jang, Seong-Yeong
    • KOREAN POULTRY JOURNAL
    • /
    • v.51 no.2
    • /
    • pp.112-115
    • /
    • 2019
  • 몇년 전부터 식품 안전성에 대한 언론 기사가 대두됐다. 축산업계에서도 빠지질 않고 안전성에 대한 문제가 이슈되면서 소비자는 물론 양계농가 및 관련인들이 인증사업에 대해 제고하는 계기가 되기도 했다. 이번 호에는 한국식품안전관리인증원 장기윤 원장을 만나 식품 안전관리를 위해 앞으로 추진 계획에 대해 들어보았다

Long-Run Stock Price Performance of the Firms that Grant Stock Options and the Separation of Ownership and Management (소유경영기업과 전문경영기업의 스톡옵션 부여 후 장기성과 결정요인)

  • Jeong, Jae-Wook;Bae, Gil-S.
    • The Korean Journal of Financial Management
    • /
    • v.24 no.1
    • /
    • pp.149-182
    • /
    • 2007
  • This study examines the determinants of the long-run stock price performance of the firms that granted stock options between 1997 and 2002. We divide the sample into the firms run by the owner and those run by the professional manager. If the primary reason for granting stock options is reduction of the agency costs between the manager and shareholders, the effect of stock options is likely to be more pronounced in the firms run by the professional manager. We find that the long-run abnormal returns of the firms run by the professional manager are negatively associated with the shareholdings by the manager and the book-to-market value and are positively associated with the earnings growth and the size of the outstanding stock options. In contrast, the long-run abnormal returns of the firms run by the owner are negatively associated with the cash flows rate and the sales growth rate and are positively associated with the firm size. This is consistent with the argument that the agency costs arising from the conflicts between the manager and shareholders are an important determinant of the post-stock option granting long-run stock price performance only in the firms run by the professional manager. The results also suggest that stock options in the firms run by the owner are likely to be used for the purposes such as additional compensation, a signaling device, a means that reduce the agency costs within firms.

  • PDF

TAR and M-TAR Error Correction Models for Asymmetric Gasoline Price in Korea (TAR와 M-TAR 오차수정모형을 이용한 국내 휘발유가격의 비대칭성 분석)

  • Lee, Yang Seob
    • Environmental and Resource Economics Review
    • /
    • v.17 no.4
    • /
    • pp.813-843
    • /
    • 2008
  • This paper investigates the presence of long-run and short-run price asymmetries in weekly gasoline prices from January 1997 to July 2008. In accordance with distribution channels, wholesale and retail stages are analyzed separately. An approach based on TAR and M-TAR cointegration tests, which entail matching asymmetric ECMs, is employed. For wholesale prices, asymmetries in the links with crude oil prices and exchange rates are found for both ECMs in the long-run and short-run. Exchange rates appear to play more significant role than crude oil prices in explaining the short-run price asymmetry. The rise in crude oil prices or exchange rates has statistically significant major impact on the increase of wholesale prices on the second week, not immediately as expected in the concept of 'rockets and feathers'. And asymmetrically, the fall does not have any statistically significant effect on the same period. The finding seems to be somewhat unusual. However, for retail prices, asymmetry m connection with wholesale prices is only revealed in the long-run. A symmetric price adjustment can be assumed in the short-run. Contrary to the long-run asymmetry found in the wholesale stage, in the retail stage, the speed of adjustment for negative deviations toward long-run equilibrium is faster than for positive ones, which is a phenomenon not favorable to consumers.

  • PDF

Altered Functions of Adrenoceptors in Splanchnic Vascular Beds in Portal Hypertensive Rat Model: Effect of Propranolol (문맥 고혈압 흰쥐에 있어서 내장혈관의 아드레나린성 수용체의 기능변동과 이에 대한 Propranolol의 효과)

  • Kim, Chi-Dae;Hong, Ki-Whan
    • The Korean Journal of Pharmacology
    • /
    • v.24 no.1
    • /
    • pp.63-70
    • /
    • 1988
  • Alterations in splanchnic circulatory hemodynamics along with reactivities to the alpha adrenoceptor agonists were assessed in association with the preventive effects of propranolol 10 days after portal ligation. Decreases in precapillary resistance (Ra) and postcapillary resistance (Rv) along with increases in mesenteric blood flow (MBF) and capillary pressure (CP) were observed in conjunction with an increment of splenic pulp pressure (SPP). Dose-dependent increase in Rv in response to noradrenaline, increases in Ra and RV to adrenaline, and increases in superior mesenteric arterial pressure (SMAP), Ra and Rv to phenylephrine observed in sham group were significantly attenuated by portal vein stenosis. In PPL-3 group (propranolol 3 mg/kg, i.p. three times daily for 10 days), MBF was significantly decreased in association with decrease in mesenteric venous pressure (MVP) when compared with those of protal ligated (PL) group, and decreased Ra and Rv in PL group were recovered toward the values of sham group. Likewise, in PPL-1 group (propranolol 5 mg/kg, i.p. once daily for 10 days), the pressor response of Rv to adrenaline was recovered up to the level of sham group. Thus, it is suggested that decreases in Ra and Rv in association with increases in MBF and CP may have a close relevance to the increased SPP, and the changes in circulatory hemodynamics and vascular reactivities were effectively reversed by longterm propranolol treatment. Based on these results, it is concluded that these changes observed in portal hypertension are closely related with the altered functions of the adrenoceptors in the splanchnic vascular beds.

  • PDF