• 한국콘텐츠학회논문지
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• 제21권4호
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• pp.404-413
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• 2021

중소기업은 기술력과 다양한 지식을 보유하고 있는 외부기업이나 기관 등과의 기술개발 관련 협력 네트워크를 형성하고 있는데, 자원기반이론의 관점에서 보면 불확실한 경영환경에서의 협력 네트워크 형성은 해당기업이 보유한 또 하나의 자원으로 인식될 수 있다. 기존의 연구와는 달리, 본 논문은 대구지역에 위치한 중소기업들을 대상으로 중소기업의 개별 협력 유형이 혁신활동 성과에 미치는 영향과 기술역량이 개별 협력 유형과 혁신성과의 관계에서 어떠한 조절효과를 나타내는지를 분석하였다. 실증분석 결과를 살펴보면, 중소기업의 개별 협력 활동 중에서 공동연구개발만이 혁신성과에 긍정적인 영향을 미치는 것으로 나타났으며, 기술역량이 우수할수록 개별 협력 활동이 혁신성과에 미치는 영향은 더욱 증가하는 것으로 나타났다. 이러한 연구결과를 토대로, 중소기업은 제약된 자원에서 야기되는 성장의 걸림돌을 극복하기 위해서 공동의 연구개발과 같이 하나의 자원을 형성하여 외부기업 및 기타 조직과 협력을 해야 한다는 것과 내부적으로 기술역량을 함양하여 개별 협력 활동의 영향을 강화할 필요가 있다는 것을 알 수 있다.

• International Journal of Contents
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• 제18권1호
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• pp.56-64
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• 2022

To improve the cooperation ability of emergency entities, in this research, the emergency activities model, skill contribution degree, entity-relationship strength, activity continuity, and emergency entity cooperation degree were defined. Emergency entity cooperation degree and emergency activity continuity table were constructed with emergency cases, emergency plans, and emergency drill plans, and factors were further excavated which affected them. In this paper, we focus on the factors which affect the cooperation ability of emergency entities, the relationship between the emergency cooperation ability and the number of cooperation, entity-relationship intensity, emergency activity frequency, and skill contribution of fire entities and medical entities were obtained. These data results are of great significance to decision-makers in formulating emergency rescue and emergency plans.

• 품질경영학회지
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• 제18권1호
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• pp.96-115
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• 1990

This study suggest a plan for a small and medium auto parts enterprises in Ulsan Industrial Complex to do cooperation activity for management rationalization. To derive the plan, it is considered that characteristics of auto parts industry, existing status of cooperation activity, and faced problems of the small and medium enterprises in Ulsan area. Suggested plan may be well used for basic information of auto parts company's cooperation, and may contribute to expand cooperation activity.

• Fisheries and Aquatic Sciences
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• 제12권1호
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• pp.29-34
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• 2009

Fifty seven species of common seaweed from the coast of Korea were screened for antifungal activity against Malassezia species. Seaweeds as a source of bioactive compounds are able to produce a great variety of secondary metabolites with different activities. There are numerous reports on the biological activities of seaweeds against human pathogens, fungi, and yeasts, but only few contain data regarding inhibitory effects against Malassezia sp., a major cause of dandruff and seborrheic dermatitis. To help address this paucity of information, this work was carried out to examine the antifungal effects of seaweed extracts against M. furfur and M. restricta. Of the fifty seven species of marine algae screened for their potential antifungal activity, only 17 species (29.8%) exhibited inhibitory activity. In agar disc diffusion method, the ether extracts of Corallina pilulifera, Enteromorpha linza, Laminaria japonica, Symphyocladia latiuscula and Ulva sp. showed strong antifungal activity. To identify major constituents in seaweed extracts, four selected extracts were analyzed on' a GC-MS equipped with a flame ionization detector, and compared to spectral data from databases WILEY229.LIB and NIST107.LIB. Most constituents in seaweed extracts are fatty acid-related compounds. When we evaluated any acute toxicity, the ether extracts of the selected four species were not toxic in mice. According to these results, it can be suggested that these seaweed extracts are valuable for the development of therapeutic agents in treating dandruff and seborrheic dermatitis. Further investigations to determine its bioactive compound(s) are currently in progress.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.34-34
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• 2017

Various extracts of roots, stems, and leaves of Phalaenopsis Sogo Yukidian 'V3' were evaluated for total phenolics, total flavonoids, and antioxidant capacity. The conjugate form of stem samples contained the highest total phenolics ($5.092{\pm}0.739mg$ gallic acid equivalent per g dry weight） and the highest total flavonoids ($2.218{\pm}0.021mg$ rutin equivalent per g dry weight) was found in the hexane extract of leaves. The ethyl acetate extract of roots showed the maximum antioxidant activity as compared to other extracts. Of which, the $IC_{50}$ value of this sample were 0.070 mg/mL and 0.450 mg/mL in the 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging assay and reducing power, respectively, while the lipid peroxidation inhibition (LPI) value was as 94.2% by ${\beta}$-carotene bleaching method. Five phenolic compounds including caffeic acid, syringic acid, vanillin, ellagic acid, and cinnamic acid were quantified by high-performance liquid chromatography (HPLC). It is suggested that roots of the hybrid Phalaenopsis Sogo Yukidian 'V3' can be explodited as an effective source of antioxidants.

• Environmental Engineering Research
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• 제23권1호
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• pp.62-69
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• 2018

In the present study, long-term heavy metals (HMs) contaminated soil samples from a well-known Pb/Zn smelting area in the southwest of China were collected, and physicochemical and biological characteristics of these samples were evaluated. Soil samples contained different concentrations of HMs, namely Pb, Zn, Cu, and Cd. Enzyme activity analyses combined with microcalorimetric analysis were used for soil microbial activity evaluation. Results showed that two soil samples, containing almost the highest concentrations of HMs, also shared the greatest microbial activities. Based on correlation coefficient analysis, high microbial activity in heavily HMs contaminated soil might be due to the high contents of soil organic matter and available phosphorus in these samples. High-throughput sequencing technique was used for microbial community structure analysis. High abundance of genera Sphingomonas and Thiobacillus were also observed in these two heavily contaminated soils, suggesting that bacteria belonging to these two genera might be further isolated from these contaminated soils and applied for future studies of HMs remediation. Results of present study would contribute to the evaluation of microbial communities and isolation of microbial resources to remediate HMs pollution.

• 한국산학기술학회논문지
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• 제15권4호
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• pp.2023-2028
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• 2014

본 연구는 대학과 기업의 산학협력 성과에 미치는 요인을 조사함으로써 향후 대학과 기업의 산학협력 활성화에 필요한 기초자료를 제공하고자 한다. 분석자료는 산학협력 사업에 참여한 대학 측의 과제책임자 146명, 기업은 담당자 또는 참여 연구원 142명을 대상으로 설문조사를 통해 구성했다. 분석방법은 신뢰도 분석, 다중회귀분석을 이용하였다. 첫째, 성과만족도에서는 대학은 산학협력 지식과 업무능력 정도가 높을수록, 상호간 요구 반영정도가 높을수록, 지역의 산업구조 영향의 영향이 높을수록 성과만족도가 높게 나타났고, 기업은 산학협력 지식과 업무능력정도가 높을수록, 산학협력 활동 참여의 적극성이 높을수록, 지역의 경제규모의 영향이 높을수록, 지역의 산업구조의 영향이 높을수록 성과만족도가 높게 나타났다. 둘째, 관계지속성에서는 대학은 산학협력 활동 참여의 적극성이 높을수록, 정보교류의 정도가 높을수록 관계지속성이 높게 나타났고, 기업은 산학협력 지식과 업무능력 정도가 높을수록, 산학협력 활동 참여의 적극성이 높을수록 관계지속성이 높게 나타났다. 셋째, 성과활용도에서는 대학은 산학협력 지식과 업무능력 정도가 높을수록, 연구시설 및 기자재가 높을수록 성과활용도가 높게 나타났다. 따라서 산학협력을 증진하기 위해서 다양한 요인들을 고려해야 한다는 것을 확인하였고, 산학협력 지식과 업무능력을 높인다면 산학협력의 성과만족도, 성과활용도, 관계지속성을 높일 수 있을 것이다.

• 산업공학
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• 제24권3호
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• pp.196-209
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• 2011

In This Study, New Product Development Activities, Innovation Activities, Technical Cooperation Activities may have an Impact on Competitive Advantage, Development Performance and Business Performance. The aim of Empirical Analyze is to identify the Structural Causal Relationship among the Activities and Performance Factors. We get the Results as Follows : New Product Development Activities have a Positive Impact on Competitive Advantage as well as the Development Performance. Technological Innovation Activities have a Positive Impact on Competitive Advantage, and do not have enough Impact on the Development Performance. Technical Cooperation Activities have a Positive Impact on the Development Performance, and do not have enough Impact on the Competitive Advantage, Competitive Advantage has a Positive Impact on the Development Performance as well as the Business Performance. Development Performance has a Positive Impact on the Business Performance.

• International Journal of Advanced Culture Technology
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• 제5권1호
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• pp.1-8
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• 2017

The purpose of the present study is to examine the effect of civic cooperation with the police on the number of crime that the police must solve by conducting simulation based on system dynamics. The study sets police oriented-policing model and police-citizen cooperative model to investigate the effect of civic cooperation with the police. As a result of the simulation, the police oriented-policing model shows that the number of crime that police must solve is increasing over time, while the police-citizen cooperative model shows that the number of crime that must be solved by the police is keeping it stable in the increase of crimes. Comparing both models, civic cooperation with the police is more effective in reducing or deterring crime than police oriented-policing activity. The study proves that building cooperative relationship between citizens and the police can become a strategic method for controlling crime effectively without a rapid increase in police finance. It is meaningful in terms of presenting a dynamic change of interaction for reducing crimes between civic cooperation with the police and policing activity of the police over time.

• 한국수소및신에너지학회논문집
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• 제33권5호
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• pp.470-498
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• 2022

Recently, the world has been considering hydrogen energy as the primary energy transition means to achieve carbon neutrality by 2050. In order to achieve the goal of reducing greenhouse gas emissions, Korea is also promoting a clean hydrogen economy. However, it is necessary to introduce various clean hydrogen from overseas so that the projected demand can not meet the domestically produced. For this study, we conducted the policy comparison approach between countries other than the generally considered technical and economic approaches. The finding proposes the direction of bilateral cooperation for a strategy of securing overseas clean hydrogen from a geopolitical perspective. Germany was a target country for the policy comparison since it has a high proportion of manufacturing, like Korea, and is taking the lead in the renewable-based energy transition policy. According to the survey and analysis of the policy establishment status and new projects of the two countries, Germany is promoting bilateral international cooperation in the hydrogen area with about 33 countries based on 7 types of activities. In comparison, Korea is involved in bilateral cooperation with about 12 countries on relatively few activities. Among the types of bilateral cooperation, R&D cooperation with advanced countries for hydrogen technology was a common activity type. Germany preemptively promotes cooperation for demonstration and commercialization, considering geopolitical means and strengthening manpower training and assistance on policy and regulation to preoccupy the market for the future. Therefore, it is necessary to consider establishing a network of an entire life cycle of supply and demand network that links the future market with securing clean hydrogen considering the geopolitical distribution. To this end, Korea also needs to expand bilateral cooperation countries by activity type, and it seems necessary to seek various geopolitical-based bilateral cooperation and support measures for developing countries to diversify the supply sources of hydrogen.