• Journal of Technology Innovation
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• v.29 no.3
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• pp.91-119
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• 2021

The importance of industrial policy and innovation policy perspectives on public procurement has recently been highlighted. In particular, there have been discussions and studies on whether public procurement directly affects the growth and innovation of SMEs. As an extension of this study, this study analyzes whether the age of a firm moderating the effect of public procurement on growth among the characteristics of firms participating in public procurement. The analysis data was constructed by matching the financial data of about 1,247 firms designated as excellent products by the Public Procurement Service(PPS) from 2006 to 2017 and the public procurement sales. As a result of analysis through the panel regression model, firms with a greater degree of public procurement showed a higher growth rate, and this relationship was stronger with younger firms. This result not only contributes to the existing academic discussion on the effectiveness of public procurement, but also has significance in the establishment of public procurement policy.

• Journal of Convergence for Information Technology
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• v.11 no.11
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• pp.151-158
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• 2021

In this paper, we analyzed the latest research trends, challenges, and potential applications of next-generation solar cell materials in various industrial fields. In addition, future prospects and possibilities of Smart Textile Hybrid Energy Harvesting Devices that will supply electricity by combining with wearable IoT devices are presented. The hybrid textile energy harvesting device fused next-generation solar cells with tribo-piezoelectric devices will develop into new 'Convergence Integrated Smart Wear' by combining the material itself with wearable IoT devices in the era of the 4th industrial revolution. The next-generation nanotechnology and devices proposed in this paper will be applied to the field of smart textile with an energy harvesting function. And we hope it will be a paradigm shift that evolves into creative products which provide AI services such as medical & healthcare by convergence with the future smart wear industry.

• Journal of Convergence for Information Technology
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• v.11 no.11
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• pp.266-276
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• 2021

The purpose of this study is to examine the scalp care behavior by dividing the lifestyle of female college students based on the health belief model into detailed types to promote healthy scalp care behavior. For the study was conducted with a total of 534 people college student in Seoul, Gyeonggi Province from 18 March 2020 to 7 April 2020. As a result, the difference in the level of belief in scalp health care according to lifestyle showed significant differences in perceived benefit, perceived disability, and self-efficacy. In addition, the results of the difference in scalp care behavior according to lifestyle were found to be high in the order of social orientation, fashion pursuit, and economic orientation. Through this study, it is thought that it is necessary to open information and education programs that can raise the level of belief in scalp health and to develop scalp care products for each lifestyle type.

• Journal of Convergence for Information Technology
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• v.8 no.6
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• pp.389-397
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• 2018

Recently, Global Shale gas development has expanded, increasing shale gas production has transformed the energy market.As a result of the reduction of energy facilities, in order to overcome the management deterioration of domestic casting valve industry and enter the enlarged shale gas plant, tried to confirm the SWOT factor through the second questionnaire based on the questionnaire survey of related industry experts and previous studies. As a strength-strategy, presented three factors besides collaboration with domestic companies, suggested four factors including product development specialized in shale gas plant as a weakness complement. Thesis offer to scholarly-Practical implications, Internal-external environmental factors, strategization for entering New energy market. thesis offer to scholarly, Practical implications, environmental factors, strategization for entering New energy market. After, analyze a important of research strategy, would like to study the impact on the company according to the ranking of importance.

• Journal of Convergence for Information Technology
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• v.9 no.3
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• pp.8-15
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• 2019

Recently, the importance of pre-shipment quality inspection has been emphasized due to the increase of STB supply. In this paper, we propose a method to support automation of quality inspection through simultaneous multi-channel input of STB video signal. The proposed method extracts a fingerprint using the center scan line of the image after stable video shot boundary detection using CeLDP combining color information and LDP code and performs synchronization between input video channels. The proposed method shows stronger shot boundary detection performance than the conventional shot detection method. Through the experiments applied to the real environment, it is possible to secure reliability and real-time quality check for synchronization between multi-channel inputs required for STB quality inspection. Also, based on the proposed method, we intend to study a large-scale quality inspection method in the future and propose a more effective quality inspection system.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.2
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• pp.385-393
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• 2019

Potential fire, explosion and safety hazards exist in medium- or small-scale chemical plants using radical batch reaction processes due to the various conditions of materials, works or products. To minimize the potential damage, a study was conducted on qualitative hazard analysis using the HAZOP technique, which is a typical method for a qualitative risk assessment and analysis of the potential risks encountered in these chemical plants. For this purpose, a domestic chemical plant, which produces the acrylic resin by a radical batch reaction process, was selected and a risk assessment and analysis according to the procedure of HAZOP method was performed for the process. As the result of the study, to prevent the hazard, the input of inert gas and the installation of a pressure gauge were indispensable. In addition, the initiator and monomer should also be separated, and inhibiting substances and equipment are also necessary to prevent a runaway reaction.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.22 no.11
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• pp.1495-1504
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• 2018

The Moon administration has proposed three major directions for startup growth: the creation of a new environment, active investment, and the creation of a virtuous cycle in venture investment. The policy is progressive but not sufficient to create a startup innovation boom in the current Korean economic environment. ICT Startup support policies must pay more attention to the product release stage. For growth of startups and small businesses it is important to establish a close value chain to secure competitiveness in the global market. It is necessary to secure a bridgehead to advance into the global market, including technical cooperation with large companies and joint advancement overseas. The final goal of the startup policy should be the continuous growth of the national economy and the expansion of employment. The establishment of fair trade and the strengthening of the startup ecosystem are important to foster a startup-friendly environment. Funding programs requires a shift from general support to enhanced choice and focus.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.42 no.1
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• pp.115-128
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• 2019

Small and Medium-sized Enterprises (SMEs) are being faced with rapid changes in their business environments due to evolution of technologies and innovation in societal eco-systems. Particularly, dynamic interactions between such environments and enterprise activities have become significant, so technology planning, which is a process of identifying appropriate directions regarding product and technology development, has received much attention to cope with such dynamics proactively. However, SMEs typically have limits in performing independent, strategical and systematical technology planning activities due to the lack of human, material and financial resources. This paper proposes the development of a product roadmapping method so that SMEs carry out efficient technology planning activities with interconnections of external business environments. The present work provides product roadmap templates that directly accommodate the influence of business environments on the product's system and its associated super/sub-systems with the use of external environment analysis techniques including TRIZ methodology, PEST and 5Forces analysis. These templates are useful to efficiently forecast the directions of product's development and evolution, which arise from changes in external environments. Consequently, the present work enables SMEs to flexibly cope with the era of the next R&D generation, which pursues value creation through mutual interconnection between business environments and technology development.

• Journal of Convergence for Information Technology
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• v.9 no.9
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• pp.33-37
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• 2019

According to the enforcement of the Cloud Computing Development and User Protection Act, a new paradigm called as Cloud Computing is coming to the fore among public and private domestic enterprises. Therefore, domestic companies should develop SaaS products specialized for the domestic market and try to preempt the IaaS market ahead of global companies. Now we are facing a necessity to combine all the cloud systems in Korean government to operate seamlessly in a harmony. In this paper, we will look at the prospect of future development of related industry through cloud computing concept and G-cloud's cloud management system (G-CMS). G-CMS can be seen as the first system to comprehensively manage heterogeneous Unix virtualization systems. G-CMS can also save costs by managing heterogeneous virtualization systems in data centers.

• Journal of Convergence for Information Technology
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• v.9 no.9
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• pp.1-12
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• 2019

A dialog system becomes a new way of communication between human and computer. The dialog system takes human voice as an input, and gives a proper response in voice or perform an action. Although there are several well-known products of dialog system (e.g., Amazon Echo, Naver Wave), they commonly suffer from a problem of out-of-domain utterances. If it poorly detects out-of-domain utterances, then it will significantly harm the user satisfactory. There have been some studies aimed at solving this problem, but it is still necessary to study about this intensively. In this paper, we give an overview of the previous studies of out-of-domain detection in terms of three point of view: dataset, feature, and method. As there were relatively smaller studies of this topic due to the lack of datasets, we believe that the most important next research step is to construct and share a large dataset for dialog system, and thereafter try state-of-the-art techniques upon the dataset.