빠르게 변화하는 해외 시장 환경 및 소비자 니즈의 변화에 발맞춰, 기업의 혁신 전략의 중요성이 강조되고 있음에도 불구하고, 경쟁전략과 신제품개발속의 관계에 관한 연구가 많이 이루어지지 않 은 실정이다. 특히, 대기업에 비해 유무형 자원의 부족에 한계를 가지고 있는 중소기업에게 있어, 해외 시장 환경의 변화에 대처하는 경쟁전략의 선택은 중요한 의사결정 요소이며, 이러한 경쟁전략 은 신제품개발속도에 영향을 미치는 주요한 전략적 요인으로 작용한다. 이에 본 연구는, 차별화전 략과 비용우위전략이 신제품개발속도에 미치는 영향을 알아보고, 시장역동성이 이러한 관계에 어 떠한 조절효과를 미치는지 살펴보고자 한다. 이를 위해 한국 중소수출업체를 대상으로 설문을 진행 하였으며, 차별화전략과 비용우위전략이 신제품개발속도에 긍정적인 영향을 미치는 것을 확인하였 다. 나아가, 시장역동성이 높을수록, 차별화전략이 신제품개발속도에 미치는 긍정적인 영향은 커지 지만, 비용우위전략이 신제품개발속도에 미치는 긍정적인 영향은 약해지는 것을 확인하였다. 본 연 구는, 경쟁전략이 신제품개발속도에 미치는 영향을 제안하고 검증하였으며, 시장이 빠르게 변화할 경우, 경쟁전략의 긍정적인 효과가 달라질 수 있음을 확인하였다는 점에서 학문적 및 실무적 시사 점이 있을 것으로 기대된다.

The purpose of this study was to examine the effect of customer perceptions of control within the dining experience on customer satisfaction. Customer perceptions of the resulting pace of the service encounter negatively impacted their satisfaction ratings during the stages of ordering, production, and payment in a restaurant. The moderating influence of perceived service pace satisfaction during service stages in a restaurant on the relationship between perceived service pace and customer satisfaction was also examined. Perceived service pace satisfaction was examined using expectancy disconfirmation theory. The effect of perceived pace on customer satisfaction was moderated by perceived service pace satisfaction during the production stage with a greater tolerance to a faster pace during the ordering stage. The management needs to consider the negative effect of service encounter pace on customer satisfaction. Perceived service pace satisfaction during the service stages in a restaurant should also be factored into strategy development for duration control.

글루코우즈 용액의 농도를 측정하기 위해 다층 젤라틴 필름으로 형성된 진단막을 제조하였다 글루코우즈의 최대 확산속도가 글루코우즈의 농도가 증가함에 따라 직선적으로 증가함으로 알 수 있었다. 혈액속에 존재할 가능성이 있는 화합물을 글루코우즈와 환원효소들의 반응에 미치는 영향을 조사하였다 그 결과 대부분의 화합물들이 글루코유즈의 최대확산속도에 큰 영향을 미치지 않는 것을 알 수 있었다.

The advanced oxidation treatment using persulfate and zero-valent iron (ZVI) has been evaluated as a very effective technology for remediation of soil and groundwater contamination. However, the high rate of the initial reaction of persulfate with ZVI causes over-consumption of an injected persulfate, and the excessively generated active species show a low transfer rate to the target pollutant. In this study, ZVI was modified using selenium with very low reactivity in the water environment with the aim of controlling the persulfate activation rate by controlling the reactivity of ZVI. Selenium-modified ZVI (Se/ZVI) was confirmed to have a selenium coating on the surface through SEM/EDS analysis, and low reductive reactivity to trichlroethylene (TCE) was observed. As a result of inducing the persulfate activation using the synthesized Se/ZVI, the persulfated consumption rate was greatly reduced, and the decomposition rate of the model contaminant, anisole, was also reduced in proportion. However, the final decomposition efficiency was rather increased, which seems to be the result of preventing persulfate over-consumption. This is because the transfer efficiency of the active species (SO4-∙) of persulfate to the target contaminant has been improved. Selenium on the surface of Se/ZVI was not significantly dissolved even under oxidation conditions by persulfate, and most of it was present in the form of Se/ZVI. It was confirmed that the persulfate activation rate could be controlled by controlling the reactivity of ZVI, which could greatly contribute to the improvement of the persulfate oxidation efficiency.

Background : Ginseng seeds are harvested in immature stages and take 3 - 4 month to be germinated following cold stratification. Improvement of germination speed can be a valuable traits to be characterized for economically important medicinal plant. Modulation of cell wall compositions is also considered as another agricultural trait when the crops can be processed for foods and forages. Here we show the functional characterization of ginseng pPLAIIIβ focused on its possible values on germination and modulation of cell wall compositions. Methods and Results : Patatin-related phospholipase AIII family genes were identified from ginseng EST clones and further confirmed by PCR. Clone showing the highest homology with pPLAIIIβ was overexpressed in model plant Arabidopsis, and it displayed dwarf plants. qPCR analysis showed that pPLAIIIβ expressed in all organs of 2-years-old ginseng. Overexpression of ginseng pPLAIIIβ also displayed apparently enlarged seeds as well as altered germination speed in early stage compared to the control. Chemical stainings and direct quantification of lignin and cellulose were performed to understand the link of cell elongation patterns and cell wall compositions. Conclusion : Overexpression of ginseng pPLAIIIβ inhibited longitudinal cell elongation in all tested organs except seeds which is enlarged in both directions than the control. Shorter root length is related with auxin responsive genes and its dwarf morphological phenotype is resulted in altered cell wall compositions.

The effects of addition of non degradable polymers, polystyrene (PS) and poly(methyl methacrylate) (PMMA) on the rate of enzymatic degradation of biodegradable poly(l-lactide) (PLLA) have been studied in term of surface structure. Since a component in multicomponent polymeric system has shown surface enrichment, PS and PMMA which have lower surface energy than PLLA were selected as a minor blend component (5 wt%). Enzymatic degradation was carried out at 37 ºC and pH 8.5 in the aqueous solution of Proteinase K. Two blend systems, partially miscible (PS/PLLA) and immiscible (PMMA/PLLA), showed the surface enrichment of 4 and 2 times of PS and PMMA, respectively. From the weight loss profile data, the slow degradation rate of both blend films was observed. This indicates that PS or PMMA domains which exist at surface act as a retardant of enzymatic attack.

Since the enzymatic degradation of microbial poly[(R)-3-hydroxybutyrate-co-3-hydroxyvalerate] (P(3HB-co- 3HV)) initially occurs by a surface erosion process, a degradation behavior could be controlled by the change of surface property. In order to control the rate of enzymatic degradation, plasma gas discharge and blending techniques were used to modify the surface of microbial P(3HB-co-3HV). The surface hydrophobic property of P(3HB-co-3HV) film was introduced by CF3H plasma exposure. Also, the addition of small amount of polystyrene as a non-degradable polymer with lower surface energy to P(3HB-co-3HV) has been studied. The enzymatic degradation was carried out at 37 ºC in 0.1 M potassium phosphate buffer (pH 7.4) in the presence of an extracellular PHB depolymerase purified from Alcaligenes facalis T1. Both results showed the significant retardation of enzymatic erosion due to the hydrophobicity and the enzyme inactivity of the fluorinated- and PS-enriched surface layers.