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헬스케어산업 관점에서 본 린스타트업 적용 사례연구: (주)휴메딕스 사례를 중심으로
임성훈,김용태,Lim, Sung-Hoon,Kim, Yong-Tae 한국벤처창업학회 2015 벤처창업연구 Vol.10 No.3
최근 해외뿐만 아니라 국내에서도 헬스케어 산업에 대한 투자가 지속적으로 증가하고 있다. 그러나 시간과 비용이 많이 들어가는 헬스케어 산업의 특성은 창업 활성화 및 투자에 제약이 되고 있다. 이 때문에 IT산업 분야의 스타트업 기업에 적용되어 효용성을 인정받고 있는 린스타트업 방법론이 헬스케어 산업 분야의 스타트업에도 적용 가능한지를 살펴보는 것은 중요한 의미를 갖는다고 하겠다. 본 연구에서는 헬스케어 산업분야에서 기술력을 바탕으로 창업하여 벤처캐피탈 투자유치 및 코스닥 상장까지 이룬 기업의 사례를 통해서 IT 산업분야 초기 창업기업에 적용되어 왔던 린스타트업(Lean Startup)이론의 응용 가능성을 모색하고자 하였다. 헬스케어 산업분야의 특성 및 린스타트업 관점의 접근을 통한 사례연구의 함의는 다음과 같다. 첫째, 시제품의 테스트가 법으로 엄격히 규제되어 있는 헬스케어 산업분야의 기술창업일수록 린스타트업 이론에 의한 최소요건제품(MVP, Minimum Viable Product) 개발을 통한 가설검증이 중요하다. 둘째, 헬스케어 산업과 같이 전임상(pre-clinical study), 임상 시험 등 인허가 과정이 길고, 비용이 많이 들어가는 산업일수록 연구조직을 스타트업(Startup) 조직으로 구성하고 연구원의 기업가정신(Entrepreneurship)을 함양해야 된다. 셋째, 젊은 엔지니어의 기술창업을 활성화하기 위해서는 기업가정신 함양과 같은 응용인문학 교육과 더불어 린 스타트업과 같은 스타트업을 위한 차별화된 경영기법이 요구된다. The investment in healthcare industry has recently increased not only for global ventures but also for the domestic ventures. However, there has been hardship of founding and investment caused by healthcare startups characteristics that are costly and time consuming. In this study, the applicability of 'Lean Startup' theory to healthcare ventures was explored through the case of a domestic startup which accomplished funding from VC and KOSDAQ after establishing based on its technology in healthcare industry. There have been numerous case studies that applied 'Lean Startup' to IT industry. However, this case study that applied 'Lean Startup' to healthcare industry have some implications as follow: First, it is critical to conduct a hypothesis testing at initial research stage through R&D of 'MVP' (Minimum Viable Product) as the prototype testing is strictly prohibited in healthcare industry. Second, healthcare R&D teams ought to be well organized as startup teams and all researchers should be equipped with entrepreneurship as the licensing process in healthcare industry is time-consuming and costly due to issues like clinical studies. Lastly, management skills as smart and light as 'Lean Startup' are required in order to encourage young engineers' technology startups.
임성훈,Lim, Sung-Hun 한국전기전자재료학회 2007 전기전자재료학회논문지 Vol.20 No.10
We investigated the quench velocity of superconducting fault current limiter (SFCL) dependent on the source voltage. $YBa_2Cu_3O_7$ (YBCO) thin film was used as the current limiting element for SFCL. The analysis on the quench velocity of SFCL is essential to determine the capacity of circuit breaker (CB) or coordinate with CB. Generally, the quench velocity of SFCL is related with the short-circuit current. To change the short-circuit current, in this paper, the amplitude of the power source voltage is adjusted. Through the fault current limiting experiments, the quench velocity of SFCL was confirmed to increase fast as the source voltage increased. On the other hand, the peak limited current was shown to increase with steady rate of increase.
자속구속형 고온초전도 사고전류 제한기의 사고제거 후 회복특성
임성훈,Lim, Sung-Hun 한국전기전자재료학회 2007 전기전자재료학회논문지 Vol.20 No.9
To apply the superconducting fault current limiter(SFCL) into a power system, the analysis for its recovery characteristics as well as the consideration for its cooperation with other protecting machine such as a circuit breaker is required. The recovery characteristics of the flux-lock type SFCL like its current limiting characteristics are dependent on the winding direction of two coils. In this paper, the experiments of the current limiting and the recovery characteristics of the flux-lock type SFCL with YBCO thin film were performed. From the analysis on the experimental results due to the winding direction of two coils, the limited fault current in case of the additive polarity winding was observed to be lower than that for the case of the subtractive polarity winding. In addition, the recovery time was found to be faster in case of the additive polarity winding compared to the subtractive polarity winding.
용융온도와 유지시간이 용융법으로 제작한 고온초전도체의 임계특성에 미치는 영향
임성훈,한태희,박경국,임성우,조동언,한병성,Lim, Sung-Hun,Han, Tae-Hee,Park, Kyung-Kuk,Yim, Seong-Woo,Cho, Dong-Eon,Han, Byoung-Sung 한국전기전자재료학회 1998 전기전자재료학회논문지 Vol.11 No.2
The effects of melting temperature and holding time on the critical current density($J_c$) of $YBa_2Cu_3O_x$ based superconducting bulk fabricated by MPMG process were investigated. The amount of the formed $Y_2BaCuO_5$ phases increased with the melting temperature. However, the value of critical current density was highest at 1120 $^{\circ}C$. With this proper melting temperature, the effect of holding time on the critical characteristics was also investigated. In the case of Ag addition, the volume of the formed $Y_2BaCuO_5$ phase when the amount of Ag addition was 10 wt% and 20 wt% was observed to be highest at 20 minute and 40 minute respectively. But in the specimen without Ag, volume of $Y_2BaCuO_5$ phase increased as the holding time increased. The proper melting temperature and the holding time obtained were 1120 $^{\circ}C$ and 20 minute. The long holding time was not effective for the $J_c$ improvement as well as the formation of $Y_2BaCuO_5$.
션트리액터의 자기결합을 이용한 초전도전류제한기를 구성하는 초전도소자들의 전력부담 분석
임성훈,Lim, Sung-Hun 한국전기전자재료학회 2010 전기전자재료학회논문지 Vol.23 No.1
The power burden of high-$T_c$ superconducting (HTSC) elements comprising superconducting fault current limiter (SFCL) using magnetic coupling of shunt reactors was analyzed. The magnetically coupled shunt reactors play a role in distributing the even power burden between HTSC elements comprising the SFCL, which contributes to the effective current limiting and recovery characteristics of the SFCL. It was confirmed through the comparative analysis on the SFCLs with both the magnetically coupled and the magnetically uncoupled shunt reactors that the magnetically coupled shunt reactors could improve the SFCL's performance by equalizing the power burden of HTSC elements.
자속구속형 초전도 사고전류 제한기의 직렬연결을 통한 동시 퀜치 특성 향상
임성훈,Lim, Sung-Hun 한국조명전기설비학회 2007 조명·전기설비학회논문지 Vol.21 No.8
본 논문에서는 자속구속형 초전도 사고전류제한기의 전압등급증대를 위한 방안으로 하나의 철심을 매개로 직렬로 연결된 자속구속형 초전도 사고전류제한기를 제안하고 이의 사고전류제한 특성을 분석하였다. 직렬 연결된 각각의 자속구속형 초전도 사고전류제한기의 구조는 두 개의 코일이 하나의 철심을 매개로 병렬로 연결되며 초전도 소자가 두 코일중 하나의 코일과 직렬로 연결된 구조를 가진다. 하나의 철심을 매개로 공유된 내부자속은 직렬연결된 각각의 자속구속형 초전도 사고전류제한기를 구성하는 초전도 소자들의 임계전류차이로 인한 불균일한 전력분담을 균일하게 유지시켜 주는 것을 실험을 통해 확인하였다. To apply the flux-lock type superconducting fault current limiter(SFCL) into power system, its current and voltage ratings are required to increase. Especially, in case of series connection of SFCLs, the countermeasure for simultaneous quenches must be considered. The structure, which each flux-lock type SFCL unit was wound in series on the same iron core, can induce the simultaneous quench of superconducting elements. Through the fault current limiting experiment for the suggested structure, it was confirmed that the even voltage burden among the superconducting elements comprising SFCLs could be made.
도시미화와 예술: '길 위의 예술'에 대한 비판적 소고
임성훈,Lim, Seong-Hoon 한국미술이론학회 2010 미술이론과 현장 Vol.10 No.-
What is Art on the street? Is it a series of artworks or activities performed on the street? In other words, does "art on the street" refer to "Street Art" such as street performance, happening, graffiti, or wall-painting, or does it refer to "Street Furniture" which is related to "City Design" or "Environmental Design"? In a formal sense, they all belong to Art on the street. However, in this paper, I would like to use Art on the street in an even broader sense. To me, " the street" is a metaphor of "environment." Thus Art on the street is the art related to environment; it is an environment art. Art on the street attests the expansion of the concept of art and shows a new possibility of contemporary art. It is a promising new concept of art, but we cannot ignore the misapplication of the concept that we can find at the crossroad of Art on the street and "city beautification." Of course, Art on the street can and sometimes needs to beautify the city. However we still need to ask how to contribute to the city beautification with Art on the street and how to validate such a practice. City space is, most of all, a space that people live in. It sounds a cliche, but it is worth repeating to better understand Art on the street. When we consider the city space in terms of its system or organization, we often overlook that it is the space in which people live, and which people create. Art on the street concerns not the city itself, but the space in which people live and make relations for each other. Without taking this into account, Art on the street becomes a mere means to' embellish' the city and falls prey to the logic of capital. In this paper, I critically reviewed the problems such as City Development, Spectacularization, City Environmental Design, Public Interest and City Museum. I intended to emphasize that Art on the street is produced in the cultural space of city, but it also tends to break the mold of the cultural space and seeks a new possibility. Some might argue that my claims are unrealistic because Art on the street is not an idea but a practice. While humbly accepting the objection, I hope my critical suggestions guide a more productive direction to continue our discussions of Art on the street.