• Title/Summary/Keyword: 창업연구

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텍스트마이닝(Text mining)을 활용한 한의학 원전 연구의 가능성 모색 -『황제내경(黃帝內經)』에 대한 적용례를 중심으로 - (Investigation of the Possibility of Research on Medical Classics Applying Text Mining - Focusing on the Huangdi's Internal Classic -)

  • 배효진;김창업;이충열;신상원;김종현
    • 대한한의학원전학회지
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    • 제31권4호
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    • pp.27-46
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    • 2018
  • Objectives : In this paper, we investigated the applicability of text mining to Korean Medical Classics and suggest that researchers of Medical Classics utilize this methodology. Methods : We applied text mining to the Huangdi's internal classic, a seminal text of Korean Medicine, and visualized networks which represent connectivity of terms and documents based on vector similarity. Then we compared this outcome to the prior knowledge generated through conventional qualitative analysis and examined whether our methodology could accurately reflect the keyword of documents, clusters of terms, and relationships between documents. Results : In the term network, we confirmed that Qi played a key role in the term network and that the theory development based on relativity between Yin and Yang was reflected. In the document network, Suwen and Lingshu are quite distinct from each other due to their differences in description form and topic. Also, Suwen showed high similarity between adjacent chapters. Conclusions : This study revealed that text mining method could yield a significant discovery which corresponds to prior knowledge about Huangdi's internal classic. Text mining can be used in a variety of research fields covering medical classics, literatures, and medical records. In addition, visualization tools can also be utilized for educational purposes.

유통개선을 위한 스토어 클리닉 -귀금속점포를 중심으로- (A Store Clinic for Distribution Improvement)

  • 이인철
    • 디자인학연구
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    • 제13권1호
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    • pp.227-235
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    • 2000
  • 환경적인 측면에서 살펴보면, 외환위기로 인한 정부의 적극적인 외화유치 촉진책으로 외국 유통업체의 국내진출이 활발해지면서 소규모 업체의 도산이 이어지고 새로운 소비문화가 형성되고 있다. 경기침체, 감원, 정리해고 등으로 소규모 자본의 창업이 붐을 이루고 있으마 신규 유통개발이나 개선이라는 측면보다는 기존방식의 축소판이나 가맹점시스템이 대부분이다. 점포주의 경영과 관리가 미숙하며 시장조사나 상권분석이 제대로 이루어지지 않아 매출 목표달성을 하기가 매우 어려운 실정이다. 정보기술의 혁신으로 멀티커뮤니케이션이 이루어져 소비자의 구매형태가 빠르게 변화하고 점포의 적극적인 영업 체계가 필요함으로 점포주에게 소매점 변신의 필요성을 강조하고 상품디스플레이의 중요성을 인식시켜 구매력을 높이기 위한 제품이미지별 테마를 선정하여 정확히 연출하여야 한다. 이를 위해 귀금속점포를 사례로 디자인 설계안을 제시하여 점포클리닉을 추진할 수 있도록 하였으며 이를 통하여 점포경영의 선진화를 모색할 수 있다.

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LPG엔진에서 수소연료 보조분사에 의한 희박연소특성 연구 (Lean Combustion Characteristics with Hydrogen Addition in a LPG Fuelled Spark Ignition Engine)

  • 오승묵;김창업;강건용
    • 한국자동차공학회논문집
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    • 제14권2호
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    • pp.114-120
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    • 2006
  • The basic effects of hydrogen addition for engine performance and emission were investigated in single cylinder research engine. Seven commercial injectors were tested to choose a suitable injector for hydrogen injection prior to its engine implementation. The hydrogen fuel leakage and flow rate were evaluated for each injector and KN3-1(Keihin, CO.) showed the best performance for hydrogen fuel. At the higher excess air ratio(${\lambda}=1.7$, 2.0), the better combustion stability was found with hydrogen addition even though its effect was small at lower excess air ratio (${\lambda}=1.0$, 1.3). Stable operation of the engine was even guaranteed at ${\lambda}=2.0$, if the amount of hydrogen gas was near 15% of total energy. In the lean region, ${\lambda}>1.3$, thermal efficiency was improved slightly while it was not clearly observed at ${\lambda}=1.0$, 1.3. It is considered that, in some cases, high temperature environment due to hydrogen combustion caused further heat loss to surroundings. Except for ${\lambda}=1.0$, with larger amount of hydrogen addition, CO was reduced drastically but it was emitted more at the leaner region. Nitric oxides(NOx) was increased a little more with hydrogen addition at ${\lambda}=1.0$, 1.3. However, at ${\lambda}>1.3$ its relative amount of emission was low. In addition, the amount of NOx was continuously decreased with hydrogen addition, but, at ${\lambda}=2.0$ the amount of NOx was lowered to 1/100 of that of ${\lambda}=1.0$. THC emission was significantly increased as air/fuel ratio was raised to leaner region due to misfire and partial burn.

여성이 운영하는 목공방 창업에 관한 연구 (Study on the Foundation of a Carpentry Studio Run by a Female Owner)

  • 김영주
    • 한국가구학회지
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    • 제27권3호
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    • pp.203-210
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    • 2016
  • According to the research on the gender ratio of furniture design courses at universities, female students account for 70 to 80 percent of the total enrollments. Likewise, other design courses reveal the similar trend. Even though female students want to build up their career in the furniture design or related fields, the figure is not so high. There is a trend that many female designers tend to take time off or quite their jobs after their marriage for that reasons such as pregnancy, childbirth, the upbringing of children and so on. The study also shows that women with higher education feel more difficult to resume their careers after being left from economic activity for a long period; this results in the lower figure of women involved in the specialized jobs than men. In particular, the furniture companies avoid hiring old female designers because they believe that younger candidates are more capable of learning the latest style; therefore, it has become harder for the job seeks to win the competition in the job market. The data released by Statistics Korea in 2015 shows that there was the higher increase in female employees than the figure of the male workers, compared to the previous year. As it can be seen, female workforce was emerged as the new growth power; Nevertheless, the working environment and conditions haven't meet the demands from women despite the gradual rise of female job seekers inspired by their wish to achieve self-realization, gender equality. To conclude, this is to suggest the plans for the foundation and management of small-scale carpentry studios so that women, who have a degree in furniture design studies and wish to resume their careers after their long breaks, start their own carpentry studios so as to reach self-realization and feel satisfied with their work while earning their livelihoods.

병아리 공장(空腸)의 교감신경지배(交感神經支配)에 관한 연구(硏究) (Studies on Sympathetic Innervation of the Jejunum in the Chick)

  • 이창업
    • 대한수의학회지
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    • 제14권1호
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    • pp.33-40
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    • 1974
  • It has been generally understood that the intestinal tracts are under the control of the autonomic nerves; the parasympathetics are excitatory and the sympathetics inhibitory. However, it is recently reported that the actions of these autonomic nerves in the newborn animals are shown to be different from those in the adult animals in some species. In order to elucidate the role of sympathetic innervation to the intestinal tracts, the effects of periarterial nerve stimulation were studied in the periarterial sympathetics-jejunum preparations of the chick and the effects of some autonomic drugs on the isolated muscle strips were also studied. The results obtained were as follows: 1. The periarterial stimulation in the periarterial sympathetics-jejunum preparation elicited the responses of three patterns; 1) contrcation followed by relaxation 2) contraction only 3) relaxation only. The excitatory response was most effective in the stimulus frequencies of 40 cps, whereas the inhibitory response was maximal in the stimulus frequencies of 30 cycle per second. 2. The excitatory response to the periarterial stimulation was not affected by the pretreatment with phenoxybenzamine, dibenamine, propranolol and atropine, whereas the inhibitory response was completely blocked by the pretreatment with phenoxybenzamine and propranolol. 3. In the periarterial syrnpathetics-jejunum preparation treated with reserpine, the periarterial stimulation evoked only contraction, and the contraction was not affected by the pretreatment with phenoxybenzamine, propranolol and atropine. 4. The administration of norepinephrine evoked a relaxation in the isolated jejunum muscle strips and the effect was completely blocked by the pretreatment with phenoxybenzamine. 5. The administration of isoproterenol produced a relaxation in the isolated jejunum muscle strips and the effect was not affected by pretreatment with phenoxybenzamine, whereas the effect was completely blocked by the pretratment with propranolol. 6) The administration of acetylcholine produced a marked contraction in the isolated jejunum muscle strips and the effect was completely abolished by the pretreatment of atropine. These experimental evidences indicate that the inhibitory response to the periarterial stimulation is due to adrenergic fibers and the excitatory response is due to neither adrenergic nor cholinergic component.

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국내 스타트업의 현황 및 성공요인 분석: (주)우아한형제들의 사례를 통하여 (The Success Factors of Domestic Start-up Companies: Case of Woowa Brothers)

  • 황세희;김경미;박현준
    • 한국산업정보학회논문지
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    • 제25권1호
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    • pp.71-87
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    • 2020
  • 새로운 고용창출과 경제성장의 핵심동력으로서 스타트업의 중요성이 더욱 강조됨에 따라 본 연구는 국내 스타트업의 현황과 성공요인을 분석하고자 하였다. 스타트업으로 시작해 유니콘기업으로 성장한 (주)우아한형제들의 성공요인을 ERIS모델과 성장단계별 모델로 구분하여 성공요인을 도출하였다. ERIS모델 성공요인은 창업자요인과 독특한 문화를 고유한 자원으로 인식한 자원요인, 블랜딩을 통한 산업환경 요인과 사업 확장으로 플랫폼 다각화를 진행한 전략요인이 주축이 되었다. 성장단계별 성공요인은 기존의 경쟁자와 차별화를 두었다는 점이며 상업화단계에서는 새로운 사업모델이 시장의 신뢰를 얻으면서 수익을 상승시켰고, 젊은 층의 공감을 얻은 공격적인 마케팅은 국내·외 투자사로부터 대규모의 투자금을 유치할 수 있었고, 성장단계에서는 매니아 중심의 마케팅을 유지하면서 플랫폼 다각화 전략을 펼친 것이 중요한 성공요인으로 작용하였다. 이와 같은 (주)우아한형제들의 성공요인 분석이 더 많은 국내 유니콘기업의 탄생을 위한 밑거름이 되었으면 하는 바램이다.

기지내 반응법에 의한 WC 복합재료의 제조에 관한 연구(1);주조접합된 주철/텅스텐 와이어의 계면반응층 생성기구와 조직특성 (A Study on the Manufacture of WC MMCs by In-situ Reaction Process(1);The Formation Mechanism of Interfacial Reaction Layer in Cast-bonded Cast iron/W wire and Its Structure)

  • 박흥일;김창업;허보영;이성렬;김창규
    • 한국주조공학회지
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    • 제15권3호
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    • pp.272-282
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    • 1995
  • Iron-based metal matrix composites have been recently investigated for the use of inexpensive abrasion resistance material. This paper carried out to investigate the in-situ reaction effects on the microstructural characteristics and the formation mechanism of tungsten carbides in a white cast iron matrix. The specimens of Fe-3.2%C-2.8%Si alloy cast-bonded with tungsten wire were cast in the metal mold and isothermally heat treated at $950^{\circ}C$ up to 48 hours. The typical microstructure of heat treated specimens showed the reaction layer of WC at the interface of tungsten wire and the carbon depletion zone between the WC layer and the matrix. During the formation of WC layer, if the carbon supply is insufficient due to the decarburization of matrix or the isolation of matrix by cast-bonded W wires, the reaction layer develops coarse hexagonal crystalline WC. From the microstructural investigation, it was found that the volume of WC layer and the carbon depletion zone increased linearly with the isothermal heat treating time. This results supported that the formation rate of WC in the white cast iron matrix is controlled by the interfacial reaction with a constant reaction rate.

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코업(CO-OP) 교육을 통한 창업 활성화 방안 연구 : 현장실습연계형 대학 교육모델 개발을 중심으로 (A Study on the University Start-Up Activation Plan through CO-OP Education : Focused on Development of a University Education Model with linking Field Practices)

  • 김춘식
    • Journal of Information Technology Applications and Management
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    • 제26권3호
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    • pp.61-80
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    • 2019
  • The cooperation between universities and industries is already one of the most important factors driving the national economy in the knowledge-based society of the 21st century represented by the Fourth Industrial Revolution. The Korean government has also been carrying out legal and institutional re-adjustments to promote industrial-university cooperation in line with demands for such changes in the times. However, despite this industry-academic cooperation system, there is still a significant mismatch between industrial demand and the university's workforce development system. By the way, there is a Cooperative Education(CO-OP) in Canada and the United States. It's an innovative link between the university and the industry. The reason is that the CO-OP program not only allows students to gain experience with their majors in the industrial field, but also plays a positive role in improving their specialty expertise. In particular, field information, ideas, and job insights that students acquire through CO-OP also serve as motivation for starting a business beyond employment after graduation. Furthermore, CO-OP experience is an important opportunity for future researchers to come up with commercialized research results that are not separated from the field sites The purpose of this study is to overcome the gap between industrial demand and the college manpower training system, and develop a Korean-style coaching program model as a growth engine for creative talent-building policies, represented by 'creation of start-ups and new industry.' In addition, this study suggested measures that can be applied in real universities. In addition, the study also highlighted that the introduction of CO-OP programs with field practices in Korea could also boost start-ups. Based on the Korean CO-OP program model, the curricula applicable to domestic universities consisted of two types : general and research-oriented university types.

대형 액상분사식 LPG엔진 인젝터의 아이싱 특성연구 (Characteristics of Icing Phenomenon on Injector in a Liquid Phase LPG Injection SI Engine)

  • 김창업;오승묵;강건용
    • 한국분무공학회지
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    • 제8권2호
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    • pp.1-6
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    • 2003
  • The liquid phase LPG injection (LPLI) system (the third generation technology) has been considered as one of the next generation fuel supply systems for LPG vehicles, since it has a very strong potential to accomplish the higher power, higher efficiency, and lower emission characteristics than the mixer type(the second generation technology) fuel supply system However. when a liquid LPG fuel is injected into the inlet duct of an engine, a large quantity of heat is extracted due to evaporation of fuel. This leads to freezing of the moisture in the air around the outlet of a nozzle, which is called icing phenomenon. It may cause damage to the outlet nozzle of an injector or inlet valve seat. In this work, the experimental investigation of the icing phenomenon was carried out The results showed that the icing phenomenon and process were mainly affected by humidity of inlet air instead of air temperature in the inlet duel. Also, it was observed that the total ice formed around the nozzle weighs at about $150mg{\sim}260mg$ after injection for ten minutes. And some fuel species were found in the ice attached at the front side of a nozzle, while frozen ice attached at the back of a nozzle was mostly' consisted of moisture of inlet air. Therefore, some frozen ice deposit. detached from front nozzle of an injector, may cause a problem of unfavorable air fuel ratio control in the small LPLI engine.

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중소기업의 개방형 혁신활동 특성과 외부 협력 네트워크 분석 (Analyzing the Characteristics of Open Innovation Activity and the External Collaboration Network in SMEs)

  • 이희연;이세원
    • 한국경제지리학회지
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    • 제15권2호
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    • pp.147-165
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    • 2012
  • 이 논문은 중소기업을 대상으로 최근 기술혁신의 새로운 패러다임으로 대두되고 있는 개방형 혁신활동을 파악하는데 목적을 두었다. 특히 중소기업들이 기술혁신 과정에서 어떻게 외부와의 협력 네트워크가 구축되며, 실제로 어떤 단계에서 개방형 혁신활동이 이루어지는 가를 분석하였다. 외부와의 협력을 통해 기술개발을 경험한 3,400개 중소기업을 대상으로 개방형 혁신활동의 특성을 파악하였으며, 기술혁신과정의 어떤 단계에서 어떻게 개방형 혁신활동이 이루어지는 가를 구체적으로 파악하기 위하여 충북테크노파크에 입지한 14개 업체를 대상으로 하여 심층 인터뷰도 병행하였다. 연구 결과 기업 자체의 혁신역량이 부족한 중소기업의 경우 아이디어 단계 및 기술개발 단계에서 개방형 혁신활동을 통해 외부로부터 다양한 자원을 활용하며, 기업이 혁신적일수록 개방형 혁신활동을 활발하게 수행하고 있고, 이직이나 창업과 같은 노동시장의 유연성도 나타나고 있다.

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