• 한국군사과학기술학회지
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• 제16권3호
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• pp.277-284
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• 2013

In this paper, the ventilating and heating system of T-103 trainer aircraft were investigated and redesigned to improve its poor performance. The ventilation system of the trainer was designed to increase the mass flow rate of fresh air by using air intake valves. The flow-in air through the air intake valve is supplied to the cabin by the ram effect of aircraft and the propeller. And the additional heating system was installed to improve the temperature of the cabin inside. The wasted heat from the exhaust gas of the engines was used as heat source of the additional heating system by installing an heat exchanger around the exhaust nozzle. The additional fresh air and the heated air enter the cabin via two ducts mounted under the instrument panel and behind the pedal in the cabin. The additional ventilating and heating system can be controlled by the first pilot and the secondary pilot individually using the control knob equipped separately. After mounting the additional ventilating and heating system, evaluations such as inspection of parts and component, ground run-up test, in-flight test, user test, etc. were conducted. The result of the tests was sufficient to meet the requirements of the manuals, and the pilots were satisfied with the additionally mounted systems.

• 로봇학회논문지
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• 제12권2호
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• pp.107-115
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• 2017

In this paper, four-bar linkage mechanism for the knee joint is developed which is used in prosthetics. But unlike the prosthetics, the feature of this mechanism is that the instantaneous center of rotation of the four-bar linkages can be moved behind the ground reaction force vector so that it can be passively supported without any external power. In addition, this mechanism is developed similar to the structure of the human knee joint for eliminating the sense of heterogeneity of the wearer. In order to design the mechanism with these two objectives, optimization design process is done using the PIAnO tool and detailed design is carried out through optimized variable values. The developed mechanism is attached to the robot which can assist the hip and ankle joints. In order to verify the operation of the developed knee mechanism, an insole type sensor was attached to the shoes to compare data values before and after wearing the robot. Result data showed that wearer wearing the exoskeleton robot with the knee mechanism was the same value regardless of whether the heavy tool is loaded or not.

• 한국항공우주학회지
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• 제32권4호
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• pp.73-79
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• 2004

초음속 유동하에서 측 추력기의 후방에 램프를 설치하였을 경우의 유통 현상을 실험 및 수치해석을 이용하여 해석하였다. 실험적인 방법으로, 가시화방법으로는 쉴리렌, 압력 측정을 위한 방법으로 압력 탭 (Pressure Tap), Pressure Sensitive Paint를 이용하였으며, 수치해석을 위하여 AeroSoft사의 GASP ver. 4.0을 사용하였다. 실험조건은 자유류의 흐름이 마하수 4 측 추력기와 자유류의 압력비가 532 이었으며 GASP을 사용하여 3D 램프형상에 대한 고찰을 하였다. 위의 모든 결과들은 후방의 램프가 없을 경우와 비교를 통하여 램프를 장착하였을 경우 수직력의 감소없이 피칭다운 모멘트가 70% 정도 감소함을 확인하였다.

• 대한한의학원전학회지
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• 제19권3호
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• pp.381-388
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• 2006

From the study on A Study on Comparison Gunhwa-ron(君火論) by Jinmutaek(陳無擇) and Sanghwa-ron(相火論) by Judangye(朱丹溪), the conclusion is as follows. Judangye(朱丹溪) said that Gunhwa(君火) is human fire[人火] and Sanghwa(相火) is heaven's fire[天火] having being opposite to the opinion of Jinmutaek(陳無擇). Jinmutaek(陳無擇) considered Gunhwa(君火) as native fire, Judangye(朱丹溪) also did Sanghwa(相火) as the source of life force. The Sanghwa(相火) that is heaven's fire[天火] mentioned by Judangye(朱丹溪) is located in part of Eum(陰) or deep part, because it based on the nothingness(虛無) to behind inside. Having become large the meaning of Gunhwa(君火) and Sanghwa(相火) defined by Jinmutaek(陳無擇) and Judangye(朱丹溪), more smaller that of Gunhwa(君火) and Sanghwa(相火) in the opposite site. Jinmutaek(陳無擇) and Judangye(朱丹溪) had difficult to state fairly about the meanings of Gunhwa(君火) and Sanghwa(相火), because of exceed intention to emphasize the importance of thier own opinions.

• 지식경영연구
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• 제18권4호
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• pp.181-211
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• 2017

Despite a growing literature focusing on technological development as a key driving force behind the economic performance of a firm or a nation's industy, we still fall short of a comprehensive understanding of how each of the elements required of technological developent and innovation fits togther and leads to economic progress and industry change. This paper seeks to fill this gap by bringing together some of key insights from the theory and research on the coevolutionary process of technology, organizations, and industry, and on the role of institutions in this process. By combining a diverse array of research streams, we provide a broad suvey of foundational work on the following two questions: (1) how the creation and diffusion of innovation occurs and gives rise to structural reconfigurations of the industry, (2) how organisations and technology coevolve, and (3) what is the role of institutions in this coevolutionary process? Based on this literature survey, we also offer a synthesis that can serve as a ground that allows a more nuanced understanding of the sources, dynamics and impacts of technological development and innovation, and interrelationships among technology, organizations and industry change.

• 무역상무연구
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• 제58권
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• pp.313-328
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• 2013

Today FTA extends over the world and Korea as a main member of international trade is no exception. In the past Korea, as the developing countries, has made endlessly effort to induce foreign investment from foreign enterprise and/or government to be a truly OECD countries today and made it. Korea's trade economy was reached 1 trillion dollars in 2012. Now we have to find a new way to produce, process, procure goods from foreign investment and also need to protect our profit and/or rights within foreign judicial territory. There are two method to protect foreign enterprise or government. First they rely on general principles in WTO or Bilateral Investment Treaty that the principle of equality, national treatment, and most-favored-nation treatment, you can create a predictable environment to protect foreign enterprise and/or government. Second they need to incorporate contractual clauses in their agreement such as stabilization clause, force majeure, arbitration, governing law or sovereign immunity. Of course there are many things left behind to consider I hope it will be helpful to those who prepare foreign investment contract.

• 경영과학
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• 제31권2호
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• pp.71-86
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• 2014

There is a growing need for technology transactions between the technology providers, who develop technologies, and the technology consumers, who purchase and commercialize technologies, to be smooth, when technologies, as intangible assets, are traded as items that can be purchased and sold. In response to these challenges, this study examines new approaches to assessing the fair market value of technologies. Because corporations are the main force behind technology development and commercialization in the existing business environment, applying one valuation method to technology assets is viable; however, as the subjects of technology development and technology commercialization are separate, the need for price negotiations between the subjects of technology transaction has grown. Moreover, as the investigations into and the application of transaction prices have been performed separately by technology providers, technology consumers, and technology assessment financial institutions, the research on technology valuation methods has shown that there are differences in perceived transaction prices between the subjects involved. This research presents a new method, appropriate to technology transactions; unlike existing methods, it grants option values to the technology provider and newly defined key variables to the technology consumer.

• 산경연구논집
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• 제8권6호
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• pp.7-16
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• 2017

Purpose - Today's world revolves around search engines which are the driving force behind any marketer. The thirst for marketing has led to the evolution of online 'Pay per click' over last few years and is the most widely used instrument. Research design, data, and methodology - Exploratory research design highlights many marketing variables getting affected by pay per click marketing. To analyze the said phenomenon, the data was gathered through questionnaire from the sample of 338 respondents which were selected by simple random sampling method mostly from the National Capital Region (NCR) of Delhi in India. The data collected from the respondents was loaded on SAS base for exploratory factor analysis and multiple regression analysis. Results - Pay per click as a marketing tool has significant impact on the consumers. The most prominent factors of pay per click marketing identified in the research are Ad quality, Competition, Targeting, Trend and Budget. Conclusions - Organic as well as inorganic ads, keeping in mind the end goal to gage the exchange of these two postings in the marked look territory. Additionally, here we dissected supported pursuit promotions in all. It would be beneficial to break down the impact of promotion position on the pay per click marketing.

• 정보관리학회지
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• 제23권3호
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• pp.223-239
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• 2006

과학이 기술발전을 이끄는 주요 추진력이며 기술혁신이 궁극적으로 경제발전에 기여한다는 것이 밝혀짐에 따라 선진국은 과학과 기술간 상호작용을 중요하게 다루고 있다. 그러나 한국의 기술발전을 이끈 과학적 기반에 관한 연구가 거의 이루어지지 않았으며 한국의 기술과 강력한 연계를 맺고 있는 학문분야에 대한 연구도 미약한 실정이다. 따라서 이 연구는 특허에 인용된 과학논문을 이용하여 과학기술자의 인용행태를 추적하고, 인용행태 이면에 놓인 과학과 기술간 상호작용을 측정하고자 하였다. 과학논문이 특허의 혁신가치에 어떠한 영향을 미치고 있는지를 살펴봄으로써 기술개발에 있어 과학논문의 중요도를 밝히고자 하였다.

• 천문학회보
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• 제42권2호
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• pp.42.2-42.2
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• 2017

The Large Magellanic Cloud (LMC) is a unique target to study the detail structures of molecular clouds and star-forming regions, due to its proximity and face-on orientation from us. Most part of the astrophysical subjects for the LMC have been investigated, but the magnetic field is still veiling despite its role in the evolution of the interstellar medium (ISM) and in the main force to influence the star formation process. Measuring polarization of the background stars behind interstellar medium allows us to describe the existence of magnetic fields through the polarization vector map. In this presentation, I introduce the near-infrared polarimetric results for the $39^{\prime}{\times}69^{\prime}$ field of the northeastern region of the LMC and the N159/N160 star-forming complex therein. The polarimetric observations were conducted at IRSF/SIRPOL 1.4 m telescope. These results allow us to examine both the global geometry of the large-scale magnetic field in the northeastern region and the close structure of the magnetic field in the complex. Prominent patterns of polarization vectors mainly follow dust emission features in the mid-infrared bands, which imply that the large-scale magnetic fields are highly involved in the structure of the dust cloud in the LMC. In addition, local magnetic field structures in the N159/N160 star-forming complex are investigated with the comparison between polarization vectors and molecular cloud emissions, suggesting that the magnetic fields are resulted from the sequential formation history of this complex. I propose that ionizing radiation from massive stellar clusters and the expanding bubble of the ionized gas and dust in this complex probably affect the nascent magnetic field structure.