• Digital Contents
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• no.1 s.68
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• pp.120-130
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• 1999

숨가쁘게 변화하고 있는 인터넷비즈니스 시장, 첫 연재를 시작했던 8개월전과 지금의 환경은 너무도 달라져있다. 또 기업의 사이트들 또한 포털사이트화로의 변신이 두드러지게 나타나고 있다. 이번 호에는 FAQ를 통해 인터넷비즈니스와 관련된 구체적인 실속정보들을 알아본다.

• The Magazine for Energy Service Companies
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• s.11
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• pp.26-29
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• 2001

비티아이가 ''실적''보다는 ''실속'' 우선의 ESCO사업 추진에 힘입어 연일 성장일로를 달리고 있다. 1970년 시계 제조사업으로 출발한 이 회사가 에너지사업에 뛰어든 것은 지난 98년. 소재옥 본부장이 직접 개발한 모터절전기가 전동기의 정격용량과 회전수를 그대로 유지하면서 전기사용량은 $10\%$ 감소하고 모터의 수명은 연장해주는 효과를 발휘함에 따라 주목받기 시작했다. 모터절전기와 조명절전기를 중심으로 한 내실있는 ESCO사업이 요즘 더욱 그 진가를 발휘하는 듯하다.

• Proceeding of EDISON Challenge
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• 2014.03a
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• pp.550-555
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• 2014

전익기는 전쟁 중 등장해 활약했다는 점과 그 독특한 형태로 유명세를 타기 시작한 비행체의 한 종류이다. 공기역학적으로 동일한 속도로 비행할 때 일반적인 항공기와 비교해서 적은 동력으로 더 멀리 날수 있는 전익기의 특성과 그 발전방향을 보았을 때 동체의 익면적이 넓어 생기는 특성을 극대화 시키면서 더욱 독특한 형태의 비행체로 나타나는 모습이 원반형 비행체이다. 본 연구는 EDISON Simulation을 활용한 두 비행체의 공력특성 비교를 통해 실제로 원반형 비행체가 많이 쓰이지 않는 이유와 그 장단점에 대한 데이터를 확보했으며 특히 원반형 비행체의 경우 Cockpit 유무와 그 크기에 따라 실속각이 커지는 것을 확인하였다.

• Journal of computational fluids engineering
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• v.13 no.2
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• pp.55-61
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• 2008

The Reynolds-Averaged Navier-Stokes(RANS) analysis of the 3-D steady flow around the NREL Phase VI horizontal axis wind turbine(HAWT) rotor was performed. The CFD analysis results were compared with experimental data at several different wind speeds. The present CFD model shows good agreements with the experiments both at low wind speed which formed well-attache flow mostly on the upper surface of the blade, and at high wind speed which blade surface flow completely separated. However, some discrepancy occurs at the relatively high wind speeds where mixed attached and separated flow formed on the suction surface of the blade. It seems that the discrepancy is related to the onset of stall phenomena and consequently separation prediction capability of the current turbulence model. It is also found that strong span-wise flow occurs in stalled area due to the centrifugal force generated by rotation of the turbine rotor and it prevents abrupt reduction of normal force for higher wind speed than the designed value.

• The Journal of the Korea Contents Association
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• v.21 no.8
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• pp.442-454
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• 2021

Many domestic and international airlines that experienced dramatic recession due to COVID-19 pandemic are carefully being ready to normalise operations as a number of governments has begun to vaccinate for COVID-19. So with the same market share from domestic to short distant international services, the competition between Full Service Carriers (FSC) and low cost carriers (LCC) is anticipated to be more intensive. To explore the concepts such as the perception, value, attitude and faith of the object, this study implements Q methodology proposed to complement the limitations of quantitative and qualitative research methodology. As a result, the consumers of airlines' brand are divided into three types - the type of utility seeking, value-oriented and task-related. Using Q samples which consist of 25 statements, this study specifically approached the traits of each type by observing the subjectivity with the comparative P sample group that is made up for 20 participants. By discovering the type of FSC and LCC's brand asset and comparing the recognition of consumers, not only does this study evoke the need for a strategic direction of the effective management of Airlines' Brand asset but also have a signification in the way that especially provide hypotheses for follow up studies.

• The Journal of the Korea Contents Association
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• v.19 no.11
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• pp.365-374
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• 2019

Loss of Control in Flight(LOC-I) due to aircraft upset attitude has the highest air accident rate, and International Aviation Institute such as ICAO and FAA recommended flight crew to operate aircraft safely through UPRT(Upset Prevention & Recovery Training) program. ICAO has selected Loss of Control(LOC) as key safety indicator, and recommended to respond using TEM(Threat and Error Management). However there are not much specific treats and errors classified for UPRT programs using real TEM based on evidences. This study intends to consider the importance of UPRT through the introduction of UPRT and accident analysis using TEM. Typical upset accidents were classified to common threats as IFR, inadequate training, Automation surprise, and inexperienced copilots. The common errors were cross-check, speed and altitude deviation, callouts, communication, thrust and stall action fail. The undesired aircraft states were inadequate automation mode, Deviation of speed and vertical, stall, and crash. These suggest areas to improve UPRT.

• Proceedings of The Korean Society of Health Promotion Conference
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• 2004.10a
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• pp.1-16
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• 2004

This paper considers the possibilities of health promotion from the following perspectives; (1) IUHPE, (2) socio-cultural similarities, (3) action research, and (4) learning from our past. 1. The IUHPE values decentralized activities through regions, and countries such as Japan, Korea, Hong Kong, Taiwan and China belong to NPWP region. Since IUHPE World Conference was held in Japan in 1995, Japan used to occupy more than 60% of NPWP membership. After 2001, membership is increasing rapidly in Chinese speaking sub-region. The transnational collaboration is still in its beginning phase. 2. Confucianism is one of key points. Confucian tradition should not be seen only as obstacles but as advantages to seek a form of health promotion more acceptable in East Asia. 3. Within the new public health framework, people are expected to create and live their health. However, especially in Japan, the tendency of 'lacking of face-to-face explicit interactions' is still common at health-promotion settings as well as academic settings. Therefore, the author tried participatory approaches such as asking WlFY (interactive questions designed for subjects to review their daily life and environment) and as introducing round table interactions. So far, majority of participants welcome new trials. 4. The following social phenomena are comparatively discussed after Japanese invasion and occupation of Korea ended in 1945; ·status of oriental medicine, ·separation of dispensary services, and ·health promotion specialist as a national license. In contrast to Japanese' tendency of maintaining the status quo and postponing of substantial social change, trend toward rapid and dynamic social changes are more commonly observed in Korea. Although all of above possibilities are still in their beginning stages, they are going to offer interesting directions waiting for further challenges and accompanying researches.