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박현준(Hyunjun Park),박찬호(Chanho Park),류준석(Juneseok You),나성수(Sungsoo Na) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11
The global pandemic of the Covid-19 virus has further raised the importance of diagnosing virus infections. The more contagious, the earlier it should be diagnosed. Since only a small amount of viral nucleic acid is initially present, a highly sensitive detection method is required. In this study, we studied a CRISPR based rolling circle amplification(RCA) for highly sensitive detection of nucleic acids. We used the feature that CRISPR combines with a particular nucleic acid sequence and cuts it, while also cutting the surrounding ssDNA. It is designed to cause secondary amplification only when CRISPR is activated by attaching a C3 blocker to the 3 terminal of reverse primer that binds to the RCA product and causes secondary amplification. As a result, it was confirmed that if the target nucleic acid is present, the amplification is higher than that of the conventional RCA after two stages of amplification, and it is also distinct from the negative control.
Social Media Influencer (SMI) Impact on Millennials
Hyunjun Park(박현준),Kyungmi Kim(김경미) 융복합지식학회 2018 융복합지식학회논문지 Vol.6 No.1
In this paper, we investigate how the company The Flying House Media have successfully strategically innovated by utilizing social media influencers (SMI) to have an impact on the new millennial generation. The cohort of millennial generations specific characteristics are based on discovering creative outlet, desire instant, and direct feedback. Therefore, this research has discovered that a new communication method of video content through social media from YouTube, Facebook, Twitter and more with an honest and meaningful story using SMIs has influenced the consumers successfully to purchase by exploring and examining the company The Flying House Media.
RGO-키토산 복합체를 이용한 하이드로겔의 합성과 종이기반 이산화질소 검출 센싱 플랫폼 개발 응용
박현준(Hyunjun Park),김웅(Woong Kim),박주형(Joohyung Park),김우창(Woochang Kim),김민우(Minwoo Kim),김치현(Chihyun Kim),이원석(Wonseok Lee),박진성(Jinsung Park) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11
In this study, we proposed that conductive composites like hydrogel using RGO and Chitosan. We are synthesized and detected a toxic gas, nitrogen dioxide (NO₂), using them. Heat the Graphene Oxide solution (GO) with ascorbic acid and reduced it to reduced graphene oxide(rGO). Then using acetic acid to make it acidic condition and add the chitosan powder to the rGO solution. When the chitosan powder is dissolved in acidic condition, it has the properties of gelation. The synthesized rGO gel has its own gel property, which is advantageous in creating and synthesizing structures by the desired mask. In particular, it has good adhesion with paper, so it can be used as a gas sensor to measure NO₂ by coating on paper. We confirmed that the detection result of NO₂ concentration range from 1 to 100 ppm. Conventional NO2 detection sensors have added nano conductive materials (nanowires, nanoparticles etc.) that increase conductivity to rGO, but the hydrogel condition has sufficient conductivity and advantage that can be manufactured from customizable sensors that are independent of shape.
The Impact of Customer-Centric Strategy for Brand Creation
Hyunjun Park(박현준) 융복합지식학회 2018 융복합지식학회논문지 Vol.6 No.2
This research investigates how the brand of a company is vital for sustainability and growth. Typically, companies follow the market trend to produce products by analyzing the market only. However, this approach can have short-term profitability. On the other hand, the customer-centric strategy can create a brand where customers are aware and can trust a specific company because of their specific brand entity. Thus, this paper will focus on the customer needs as a priority instead of following the market trend. Moreover, it produces products that can benefit the customer instead of creating a better product to gain market share. Therefore, this research paper explored a cosmetic company called Pinkwonder which have successfully utilized and applied the customer-centric strategy from the beginning and created an organic cosmetic brand where the customers can trust. Currently, the organic cosmetic industry is trendy and attractive industry, especially in South Korea. Thus, there are many different competitors with various organic products to match and follow the current market trend. Therefore, these companies have followed the market trend and have obtained some of the market shares. This paper will explore the differences and importance in brand creation for growth and sustainability between the market trend follower versus customer centric-strategy. Also, it will attempt to discover that the customer-centric strategy may be more viable and sustainable in the long-term.