• 기술혁신학회지
• /
• 제20권3호
• /
• pp.546-575
• /
• 2017

이 연구는 정부의 연구개발(R&D) 지원이 중견기업의 연구개발 투자에 미치는 영향을 살펴보았다. 이를 위해 중견기업 표본과 이에 대응되는 중소기업 표본을 대상으로 하여 패널 데이터를 수집하여 DID(difference-in-differences) 회귀분석 방법을 이용하여 정부 지원의 효과를 분석하였다. 본 연구의 결과에 따르면, 정부의 연구개발 지원은 중견 중소기업의 연구개발 순투자를 전반적으로 증가시켰다. 중견기업과 중소기업을 비교해 보면, 정부의 연구개발 지원이 기업 연구개발 투자를 촉진하는 효과는 중소기업에 비해 중견기업에서 더 크게 나타났으며, 중소기업에서는 유의한 영향을 미치지 못하였다. 또한 규모에 따라서 중견기업을 구분해 보면, 상대적으로 규모가 작은 초기 중견기업 표본에서 정부지원이 기업 연구개발 투자를 촉진하는 효과가 더 크고 유의하였다. 기술역량에 따라서 중견기업을 구분해 보면, 상대적으로 기술역량이 우수한 기업 표본에서 정부연구개발사업 참여에 따른 보조금이 기업 연구개발 투자를 촉진하는 효과가 더 강하게 나타난 반면 기술역량이 낮은 기업 표본에서 조세 지원이 기업 연구개발 투자를 촉진하는 효과가 더 강하게 나타났다. 연구의 결과는 중견기업의 혁신을 지속적으로 촉진하기 위한 정부의 연구개발 정책 및 관련 지원 사업이 필요하며, 중견기업의 기업규모, 기술역량, 성장잠재력을 감안하여 정책을 신중하게 수립하고 실행해야 함을 시사한다.

• 한국미생물·생명공학회지
• /
• 제22권5호
• /
• pp.557-560
• /
• 1994

The optimum medium composition for the production of L-tryptophan with Klebsiella pnuemoniae pheA tyrA trpE trpR/pSC 101-trp$^{+}$ and the effect of precusors in the optimum medium were studied. The specific growth rate in the optimum medium was almost the same as that in the basal medium, the former showing 1.01 and the latter 1.07 hr $$^{-1}$, but the produced tryptophan was increased 45% in the optimum medium. The maximum amount of produced tryptophan was 159 mg/l within 14 hours. Tryptophan production was ceased by casamino acid addition over 4 g/l in medium, but cell maSS increased with its addition. Indole and anthranilate as precusors had toxic effect on growth and tryptophan production at experimented concentration range (over 20 mg/l), but L-serine had good effect on tryptophan production, resulting in 175 mg/l tryptophan within 14 hours.

• 한국경영과학회:학술대회논문집
• /
• 한국경영과학회 2008년도 추계학술대회 및 정기총회
• /
• pp.179-190
• /
• 2008

Consumers earn a number of points for every purchase and then they can exchange a specified number of points for a desired reward in a typical loyalty program. The immediate payoff of their effort given as points is not the real reward they actually care about. It is merely an instrument (or medium) which has no value in itself. In a real world, consumers frequently choose the option with a bigger medium even though the economic value of the option is not changed by the medium. We call it 'medium effect'. In this study we explored if the size of medium affects on consumers' preferences. For this we controlled the reward options with three types of medium (small, medium, big) and measured the magnitude of preference difference among the three types of reward options. In addition, we manipulated comparability of reward options with wine and gas discount coupon. We confirmed that choosing one of two wines was easier than that of the two gas coupons. 164 respondents were allocated into three experimental groups and one control group. In three experimental groups, the ratios of the focused reward option's medium to the compared reward option's medium were different. For example, the focused reward option has 10 million points whereas the compared reward option has 10 million points for 1 million won purchase amount in the first group. Then each respondent was asked to choose one of two loyalty programs (focused program vs. compared program) in two different conditions (comparability between reward options: easiness vs. difficulty). To compare the medium effects among the experiment conditions we used chi-squares tests. The empirical results show the medium effect increases and then decreases as the ratio of reward mileages/points to purchase amount increases. Additionally, they let us know that comparability of alternatives affects on the medium effects depending on the ratio of reward mileages/points to purchase amount.

• 산업융합연구
• /
• 제20권5호
• /
• pp.11-20
• /
• 2022

본 연구에 목적은 중소기업 고용주의 윤리적 리더십이 직무만족에 미치는 영향을 파악하고, 이들의 관계에서 조직공정성의 매개효과를 파악하기 위함이다. 연구는 서울, 경기도 북부권역의 중소기업 직원 508명을 대상으로 온라인 설문을 실시하고 분석을 진행했다. 연구결과 첫째, 중소기업 고용주의 윤리적 리더십이 높을수록 직무만족이 높게 나타났다. 둘째, 중소기업 고용주의 윤리적 리더십이 높을수록 조직공정성이 높게 나타났다. 셋째, 중소기업 고용주의 윤리적 리더십이 직무만족에 미치는 영향에서 조직공정성의 부분매개효과를 확인했다. 따라서 중소기업 직원들의 직무만족과 조직공정성 증진을 위한 중소기업 고용주의 윤리적 리더십 역량강화 방안이 필요하다.

• 대한안전경영과학회:학술대회논문집
• /
• 대한안전경영과학회 2000년도 춘계학술대회
• /
• pp.149-161
• /
• 2000

This study investigated the management environment of medium and small business by examining the role of medium and small business in national economics, the change in management condition, and the problems in quality and technique. Also we analyzed problems in the past quality control activity of our medium and small business, and examined the driving direction and introduction method of QM. And to understand the effect of manager's concern in quality management to observe the quality system before and after introduction of QM. A target for this investigation is the medium and small business which has introduced QM through ISO 9000.

• 대한안전경영과학회:학술대회논문집
• /
• 대한안전경영과학회 2003년도 춘계학술대회
• /
• pp.195-201
• /
• 2003

This study investigated the management environment of medium and small business by examining the role of medium and small business in national economics, the change in management condition, and the problems in Qualify and technique. Also we analyzed problems in the past quality control activity of our medium and small business, and examined the driving direction and introduction method of QM. And to understand the effect of manager's concern in quality management to observe the quality system before and after introduction of QM. A target for this investigation is the medium and small business which has introduced QM through ISO 9000.

• Coupled systems mechanics
• /
• 제1권4호
• /
• pp.297-309
• /
• 2012

As a result of the medium coupling, propagation characteristics of ultrasonic waves guided by a multi-phase medium can be different from those in a homogeneous system. This phenomenon becomes prominent for a medium consisting of phases with considerably distinct material and physical properties (e.g., submerged structures or human bones covered with soft tissues). In this study, the coupling effect arising from both fluid and soft tissues on wave propagation in engineering structures and human bone phantoms, respectively, was explored and calibrated quantitatively, with a purpose of enhancing the precision of ultrasonic-wave-based non-destructive evaluation (NDE) and clinical quantitative ultrasound (QUS). Calibration results were used to rectify conventional NDE during evaluation of corrosion in a submerged aluminium plate, and QUS during prediction of simulated healing status of a mimicked bone fracture. The results demonstrated that with the coupling effect being appropriately taken into account, the precision of NDE and QUS could be improved.

• Asia Marketing Journal
• /
• 제24권4호
• /
• pp.190-205
• /
• 2023

An accruable point scenario study was applied to examine the effect of the point-accumulation trend (diminishing vs. increasing) and the nominal value (small vs. large) of a medium for repeated consumption on program loyalty. The results showed that both factors affect consumer loyalty toward a reward program. Consumers who received a medium with an increasing accumulation trend and a large nominal value perceived a reward to be more valuable than those who received a diminishing trend and a small nominal value. The results confirmed that a large nominal value or an increasing accumulation trend increased the perception of reward and program loyalty. However, when the desirability of the medium was controlled, the effect of trend was reduced to almost negligible whereas that of the nominal value remained the same. These findings suggest how consumer perceptions of loyalty programs can be practically managed through point accumulation processes.

• 벤처창업연구
• /
• 제15권5호
• /
• pp.65-76
• /
• 2020

본 연구는 여성의 셀프리더쉽이 창업이라는 새로운 환경에 적응하는 것이 중요하다는 점을 반영하여 여성의 셀프리더쉽이 자기효능감을 매개로 하여 창업의도에 미치는 영향을 분석하였다. 특히, 영향요인인 셀프리더쉽을 보다 구체적으로 파악하기 위하여 셀프리더쉽 전체와 더불어 하위요인인 행동지연 전략, 보상자연 전략 및 건설적 사고전략에 대해서도 검증하였다. 연구방법으로는 온라인 설문에 응답한 198명을 대상으로 Hayes(2018)가 제안한 PROCESS macro의 model 4번 모델을 이용하여 분석하였으며, 간접효과는 붓스트랩 샘플을 5,000개로 지정하여 분석하였다. 연구결과는 다음과 같다. 첫째, 자기효능감은 여성의 셀프리더쉽이 창업의도에 영향을 미치는 매개효과가 있는 것으로 나타났다. 이때 매개효과는 부분매개로 나타났다. 둘째, 자기효능감은 여성의 행동지향적 전략이 창업의도에 영향을 미치는 매개효과가 있는 것으로 나타났다. 이때 매개효과는 부분매개로 나타났다. 셋째, 자기효능감은 여성의 자연보상적 전략이 창업의도에 영향을 미치는 매개효과가 있는 것으로 나타났다. 이때 매개효과는 부분매개로 나타났다. 넷째, 자기효능감은 여성의 건설적 사고전략이 창업의도에 영향을 미치는 매개효과가 있는 것으로 나타났다. 이때 매개효과는 완전매개로 나타났다. 이는 여성의 셀프리더쉽이 높을수록 자기효능감과 창업의도가 높아질 수 있음을 알 수 있다. 이러한 연구 결과에 따라 여성 창업에 대한 발전적 제언을 하였다.

• Asian-Australasian Journal of Animal Sciences
• /
• 제24권11호
• /
• pp.1541-1546
• /
• 2011

This study was carried out to examine the influence of minimum essential medium (MEM) vitamins supplementation to in vitro maturation medium and in vitro culture medium on the development of porcine embryos. Porcine embryo development was investigated following cultivation in both in vitro maturation and culture medium with the supplementation of MEM vitamins (0, 0.1, 0.2 and 0.4%) using immature oocytes collected from the ovary of prepubertal gilts. Embryo development was observed and the total cell number in each blastocyst generated under the culture conditions was quantified following supplementation of the medium. The embryonic development rate of the blastocyst and hatched blastocyst was higher, but not significantly so, when 0.4% MEM vitamins were supplemented to the in vitro maturation medium of the porcine oocyte. Interestingly, the total number of cells in the blastocyst was significantly higher in the in vitro maturation MEM vitamins supplemented group compared to either the untreated group or the group which had MEM vitamins supplemented to both in vitro maturation and in vitro culture medium simultaneously (p<0.05). Therefore, the supplementation of 0.4% MEM vitamins to the in vitro mature medium has a beneficial effect on the embryonic development of in vitro produced blastocysts derived from the immature porcine oocytes.