• 한국재료학회지
• /
• 제18권11호
• /
• pp.610-616
• /
• 2008

Oil-based nanofluids were prepared by dispersing Ag, graphite and carbon black nanoparticles in lubricating oil. Agglomerated nanoparticles were dispersed evenly with a high-speed bead mill and/or ultrasonic homogenizer, and the surfaces of the nanoparticles were modified simultaneously with several dispersants. Their tribological behaviors were evaluated with a pin-on-disk, disk-on-disk and four-ball EP and wear tester. It is obvious that the optimal combination of nanoparticles, surfactants and surface modification process is very important for the dispersity of nanofluids, and it eventually affects the tribological properties as a controlling factor. Results indicate that a relatively larger size and higher concentration of nanoparticles lead to better load-carrying capacity. In contrast, the use of a smaller size and lower concentration of particles is recommended for reducing the friction coefficient of lubricating oil. Moreover, nanofluids with mixed nanoparticles of Ag and graphite are more suitable for the improvement of load-carrying capacity and antiwear properties.

• 한국의류학회지
• /
• 제30권4호
• /
• pp.519-530
• /
• 2006

The purpose of this study was to investigate whether management strategic types and entry strategy moderate the influence of Guanxi on the relationship performance between Korean apparel firms & Chinese partners. For these purposes, three hypotheses were developed and data was collected from 85 Korean apparel firms which have a business relationship with Chinese partners. Data was analyzed with SPSS methods such as frequency, factor analysis, multiple-regression, and hierarchical-regression analysis. The results were as follows: First, 'Prior to Guanxi' and 'Execution of Guanxi', which were sub-factors of Guanxi, influence positively on the relationship performance. And also the influence of 'Prior to Guanxi' was higher than 'Execution of Guanxi' on the relationship performance. Second, the influence of the 'Prior to Guanxi' on the relationship performance was stronger when Defender strategic type was used rather than other types. Third, the influence of the 'Prior to Guanxi' on the relationship performance was stronger when the entry scope of 'Both production & distribution in China' and the entry mode of 'Entry through Agent' were chosen.

• International Journal of Contents
• /
• 제11권3호
• /
• pp.24-33
• /
• 2015

Against the backdrop of Habermas' theory of communicative action, we empirically analyzed the level of interactivity and narratives offered in nation-states' ministry of foreign affairs Web sites. A multiple regression analysis was performed in an attempt to identify factors affecting the level of interactivity in such Web sites. Findings revealed that the level of economic development is the sole significant factor in regards to the level of interactivity. Further, self-interested, goal-directed, and strategic purposes behind the allegedly transparent, engaging, and interactive public diplomacy were evidenced through a critical analysis of the objectives, key issues, and target publics addressed and highlighted in the public diplomacy narratives on the Web. The results suggested a possible digital divide in the interactive adoption of Web public diplomacy as well as strategic motives and interests embedded in the public diplomacy communication on the Web. This study helps increase our understanding of the paradox of public diplomacy in the digital age.

• Journal of Information Technology Applications and Management
• /
• 제22권4호
• /
• pp.205-224
• /
• 2015

Information System is a critical success factor for overcoming the limitations of asset and capacity of Small and Medium Enterprises (SME), and for acquiring competitiveness. Although, the rate of adopting information system by SME has grown, the rate of its utilization has been stagnant. The purpose of this study is to identify the influencing factors that increase SME's information system utilization. We identify perception of strategic value, supplier's support capacity, and organizational characteristic by examining previous researches on information system utilization by SMEs, and verify their the influencing relationship with the information system utilization. This study verifies the research model and hypothesis using structural model. A date-set of 1209 samples from a survey on employees in charge of information system of SME was applied in verifying the research hypothesis. The result of this study shows that the information system utilization influences perception of strategic value and support of supply company, and partly, the structural characteristics. This study presents directions to establish strategy and policy making, and theoretically presents core factors of SME's information system utilization.

• 산업융합연구
• /
• 제20권8호
• /
• pp.15-23
• /
• 2022

본 논문은 CEO의 가치관, 컨설턴트의 역량, 근로자와의 가치일치성이 전략컨설팅 성공과 성과에 미치는 영향에 대하여 조사, 연구하였다. 설문을 통한 180부의 자료로, 요인분석, 신뢰성 및 타당성 분석을 실시하였고 최종 연구 모형에 대한 구조방정식을 실시하였다. 분석 결과는, 혁신성과 관리역량은 가치일치성에 유의한 영향을 미치는 것으로 나타났고. 가치일치성은 완성도와 활용도에, 완성도와 활용도는 만족도와 경영성과기여도에 유의한 영향을 미치는 것을 확인할 수 있었다.

• 지역과문화
• /
• 제7권1호
• /
• pp.59-98
• /
• 2020

본 연구는 축제가 도시재생에 미치는 영향을 알아보기 위해 축제의 '전략적 기획'이라는 변수를 활용하여 데이터를 활용한 실증 연구를 실행하였다. 축제의 성공 요인으로서 전략적 축제 기획요소를 도출하여 탐색적 요인분석을 통해 검증한 7가지 전략적 기획요인이 축제만족(축제성공)과 도시재생에 정(+)의 영향을 줄 것이며, 축제만족이 매개효과로 작용하여 도시재생에 정(+)의 영향을 줄 것이라는 가설을 설정하였다. 분석대상은 축제를 통한 도시재생의 전형적 사례로 볼 수 있는 김제지평선축제를 선정하여 설문지를 통한 정량적 분석과 문헌조사, 현장조사 및 심층 인터뷰를 통한 정성적 분석을 혼합하여 분석함으로써 축제와 도시재생과의 관계를 파악하고자 하였다. 정량적 분석 결과, 전략적 기획이 축제만족(축제성공)과 도시재생에 정(+)의 영향을 미치며, 축제만족이 도시재생에 정(+)의 영향을 미치는 것으로 나타났다. 정성적 분석을 통해서도 정량적 분석 결과에 상응한 연구결과를 얻을 수 있었다. 이는 전략기획의 경로계수가 높아질수록, 축제만족 및 도시재생의 경로계수도 높아지는 것을 보여주는 것으로, 전략기획이 잘 이루어질수록 축제만족 및 도시재생의 효과가 극대화됨을 의미한다. 즉, 본 연구에서 축제의 성공 요인으로 제안한 7가지 전략적 기획요소를 축제기획 단계부터 적극적으로 반영하여 기획·실행할 때에 축제의 성공뿐 아니라 도시재생에도 정(+)의 영향을 줄 수 있음을 시사하고 있다. 이는 축제를 통한 소프트웨어적인 도시재생의 새로운 대안을 주는 시사점으로서 축제기획자나 도시재생 전문가들에게 축제기획의 중요성과 도시재생의 효과를 극대화하기 위한 기획의 방향성을 제시한 데 의의가 있다. 본 연구결과를 통해 향후 축제 및 소프트웨어를 활용한 도시재생 연구에 있어서 새로운 시각으로 접근할 수 있는 계기가 되리라 사료된다.

• 경영정보학연구
• /
• 제8권3호
• /
• pp.39-64
• /
• 2006

날로 심화되고 있는 글로벌 경쟁시대에 기업 경쟁력의 핵심으로 e-비지니스가 확산되고 있다. e-비지니스는 경쟁시장에서 새로운 기회창출, 산업의 구조변화, 생산성 향상을 주도하고 있으며, 기업들도 이와 관련된 투자를 증대시키고 있다. 그러나 투자에 대한 성과의 효율성 증진을 위해 중점적으로 관리해야 할 대상과 요인들에 대한 e-비즈니스 성공요인에 관한 연구는 미비한 실정이다. 이에 본 연구에서는 문헌연구, 사례연구 및 전문가들과의 인터뷰를 통하여 주요한 e-비즈니스 성공요인을 도출하여 경영적 요인과 기술적 요인으로 구분하였으며, 도입 시기에 따라 준비기, 구현기, 운영기로 분류하였다. 이를 바탕으로 e-비즈니스 적용 기업을 대상으로 주요 성공요인과 성과와의 연관성에 대한 실증연구를 수행하였다. 연구결과를 종합해 보면, 기업의 e-비지니스에 대한 전략적 방향으로, 최고 경영자의 관심과 지원을 토대로 경영적 측면에서 차별화된 컨텐츠를 꾸준히 개발하고, 기술적 측면에서는 지속적인 e-비즈니스시스템 관리가 필요함을 알 수 있었다. 본 연구의 의의로는 e-비즈니스 주요 성공요인과 추진성과를 새롭게 그룹화 하여 제시하였고, 이들 간의 관련성을 파악함으로써 향후 연구를 위한 e-비즈니스 연구의 체계화에 기여하였다. 그리고 추진 단계별로 성공요인을 정리함으로써 향후 지속적이고 세부적인 연구에 대한 단초를 제시하였다는데 있다.

• Nutrition Research and Practice
• /
• 제16권6호
• /
• pp.685-699
• /
• 2022

BACKGROUND/OBJECTIVES: Platycodon grandiflorum (PG) has long been known as a medicinal herb effective in various diseases, including bronchitis and asthma, but is still more widely used for food. Fermentation methods are being applied to increase the pharmacological composition of PG extracts and commercialize them with high added value. This study examines the hydrolyzed and fermented PG extract (HFPGE) fermented with Lactobacillus casei in RAW 264.7 cells, and investigates the effect of amplifying the immune and the probable molecular mechanism. MATERIALS/METHODS: HFPGE's total phenolic, flavonoid, saponin, and platycodin D contents were analyzed by colorimetric analysis or high-performance liquid chromatography. Cell viability was measured by the MTT assay. Phagocytic activity was analyzed by a phagocytosis assay kit, nitric oxide (NO) production by a Griess reagent system, and cytokines by enzyme-linked immunosorbent assay kits. The mRNA expressions of inducible nitric oxide synthase (iNOS) and cytokines were analyzed by reverse transcription-polymerase chain reaction, whereas MAPK and nuclear factor (NF)-κB activation were analyzed by Western blots. RESULTS: Compared to PGE, HFPGE was determined to contain 13.76 times and 6.69 times higher contents of crude saponin and platycodin D, respectively. HFPGE promoted cell proliferation and phagocytosis in RAW 264.7 cells and regulated the NO production and iNOS expression. Treatment with HFPGE also resulted in increased production of interleukin (IL)-1β, IL-6, tumor necrosis factor (TNF)-α, C-X-C motif chemokine ligand10, granulocyte-colony-stimulating factor, granulocyte-macrophage colony-stimulating factor, and monocyte chemoattractant protein-1, and the mRNA expressions of these cytokines. HFPGE also resulted in significantly increasing the phosphorylation of NF-κB p65, extracellular signal-regulated kinase, and c-Jun N-terminal kinase. CONCLUSIONS: Taken together, our results imply that fermentation and hydrolysis result in the extraction of more active ingredients of PG. Furthermore, we determined that HFPGE exerts immunostimulatory activity via the MAPK and NF-κB signaling pathways.

• 통상정보연구
• /
• 제11권4호
• /
• pp.313-344
• /
• 2009

Corporate Social Responsibility(CSR) is considered recently a key factor for the firm's success and sustainable growth in today's changing business environments. Discussions on CSR are extensively unfolding in various sectors, public, civil society and business organizations, across the world. Consumer in foreign markets have been insisted that multinational corporations and foreign supplier need to adapt their business activities to not only the economic, but also social needs of the consumer. Therefore Korean companies operating in global markets need their global CSR strategy, which will contribute to the improvement of their international competitiveness and long term growth. Thus, the purpose of this study is to report on the strategy of corporate social responsibility through the literature review and illustration of CSR activities of the leading companies in global market. In addition, this paper is aimed to provide Korean firms the insight in reinforcement of global competitiveness in relation of strategic CSR.

• 패션비즈니스
• /
• 제4권3호
• /
• pp.103-114
• /
• 2000

The purpose of this study was to test the discriminant analysis model of Quick Response system and to examine the detailed relationship between each discriminant factor and Quick Response adoption. In this discriminant analysis model of Quick Response system, firm size, strategic type, product category, fashion trend, selling time and the Quick Response benefits were included as discriminant factors. Onehundred and two subjects were randomly selected for the survey study and discriminant analysis, descriptive analysis, t-test, and x square test were used for the data analysis. The results of this study were: 1. Wilks Lambda and F value support the discriminant analysis model that, taken together firm size, strategic type, product category, fashion trend, selling time and the Quick Response benefits significantly help to explain Quick Response adoption. 2. The importance of discriminant ability was, in order, firm size, the Quick Response benefits, women's wear, fashion trend, analyzer, selling time, reactor, defender and men's wear. 3. The discriminant function had the high hit ratio, so this can be well used for the classification of Quick Response adoption/nonadoption.