• 대한전자공학회논문지TC
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• 제43권9호
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• pp.128-134
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• 2006

본 연구에서는 유럽방송연합 방송(DAB)의 교통정보전송형식(TPEG)을 분석하고 국내 DMB에 적용가능하지를 검토하여 국내 교통환경에 적합한 교통정보 전송형식을 제안하였다. 이와 관련하여 본 연구에서는 TPEG로 교통정보를 전송하는데 요구되는 교통정보의 종류와 관련항목들을 분석하고 교통정보 종류별로 TPEG 전송포맷 구성방안을 제시하였다. 강남지역 일부 도로망을 중심으로 소통상황, 사고, CCTV 영상 및 그래픽 정보를 TPEG 데이터로 구성하여 기존 CNS 기능의 단말기에서의 구현 가능성 여부를 실험하였다. 그 결과 TPEG 스트림 데이터를 문자로 표시하는 기능과 수치지도를 연계하여 표시하는 것이 가능 하였으며, CCTV와 그래픽의 정지영상 데이터의 표현 또한 가능한 것으로 나타났다. 따라서 TPEG를 국내 DMB에 교통정보 전송포맷으로 적용하는 것이 권장된다.

• International Journal of Knowledge Content Development & Technology
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• 제10권3호
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• pp.33-50
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• 2020

Knowledge recipes are packages of knowledge which arise from the process of combining the knowledge assets in the organization in distinctive ways. This involves converting them into useful outputs which are the ideal core competitive advantage enablers for companies. The major objective of this study was to propose a knowledge recipe for financial-sector state corporations in Kenya. The study adopted a convergent parallel mixed methods research design. Quantitative and qualitative data were collected using questionnaires and key informant interviews. The target population of the study was 1574 respondents drawn from all financial state corporations. A multistage sampling technique was used for the study. The first phase involved purposive sampling of the organizations to be studied whereby the four state corporations namely: Capital Markets Authority, Competition Authority of Kenya, Kenya Investment Authority, and Kenya Revenue Authority were identified. The second phase entailed stratified sampling of the respondents in three strata namely senior management team, knowledge management team, and general staff. The authors used a census of all senior management team and knowledge management staff while a simple random sampling technique was used for the general staff. By use of the Krejcie and Morgan table, the actual sample size was 358 respondents from all the four organizations. Data were collected using questionnaires and interview schedules. The qualitative data were analyzed using content analysis while the quantitative data were analyzed by the use of Ms. Excel and VOSviewer and presented using pie charts, bar graphs, and tables. The response rate for this study was 257 (72%). The study revealed that while most employees in the financial sector organizations understand their knowledge needs, knowledge types, knowledge uses and knowledge gaps, they do not have a universal knowledge recipe to facilitate effective knowledge management in their organizations. Consequently, the authors propose a universal knowledge recipe for the state corporations in the financial sector in Kenya. The ingredients of the recipe are legal-knowledge (18%), financial knowledge (15%), administrative knowledge (11%), best practice (10%), lessons learnt (8%), human resource knowledge (8%), research and statistics knowledge (7%), product knowledge (6%), policy and procedure knowledge (5%), ICT knowledge (4%), investor knowledge (3%), markets knowledge (2%), general knowledge (2%) and regulatory framework knowledge (1%).

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2002년도 하계종합학술대회 논문집(4)
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• pp.247-250
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• 2002

Data embedding has recently become important for protecting authority. In this paper, we Propose a robust data embedding technique for images. Our techniques are based on the convolution between message image and a random phase carrier. We add extra bits with carrier image to improve precision of detecting rate, moreover, we use block by block based cyclic correlation for the compensation of distortion. In experiment, we show that the proposed a1gorithm is robust to Stirmark 3.1. attacks.

• 대한간호학회지
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• 제17권1호
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• pp.44-51
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• 1987

The purpose of this study is to identify the leadership and subordination of hospital nurses: to determine the leadership and subordination by nurses' characteristics, which are age, educational background, career, and position of nurses. 279 staff nurses, 13 charge nurses, 32 head nurses and 16 nurse supervisors were participated in this study during the period from Dec. 5 to Dec. 20, 1986. Subjects were instructed to rate at one of five points likert type scale on the 26 items of leadership and subordination. The reliability of the items (Cronbach's α) were 0.63∼0.84. Among the total 26 items, 8 items on authority, 4 items on human relation, 9 items on committment of position and 5items on committment of job were summed to cummulative scores in each category. As a result of data analysis nurses who perceive positive on authority are 68.6% and positive on human relation are 67.9%. The perception of authority is different by age, Career and position of nurses. (P<0.05). And nurses who perceive positive on committment of position are 84.7% and positive on committment of job are 62.1%. The perception of committment for position is different by age, career and position of nurses (P <0.05), and committment of job is different by age and position. (P<0.05).

• 전기학회논문지
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• 제66권9호
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• pp.1431-1436
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• 2017

The high-speed railway of catenary system, supplies a stable electric power supply to the train by satisfying the special conditions between pantograph and trolley wire, which operates more than 250km/h mutually sliding and feeding electric lines. According to Korean Railway Standard KRS PW 0026-13 (R), the standard for the grip strength of the dropper clamp in conventional line is established, but the high-speed railway line is not yet. When the grip strength of the dropper clamp is detached from the catenary line of the high-speed railway line, various problems may occur, such as damage to the pantograph due to the collision and arcing. In this paper, it is expected to be used as a basic data for establishing the durability criteria of the high-speed railway dropper clamp by verifying the dropper clamp on the Gyeong-bu and Honam high-speed line.

• 대한환경공학회지
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• 제31권12호
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• pp.1151-1160
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• 2009

전세계적으로 과불화 화합물들에 의한 오염은 심각한 수준에 도달해 있다. 이들은 난분해성으로 환경에 장기간 머물며 생물축적 (bioaccumulation) 및 생물확대 (biomagnification)의 원인 물질로 인간과 동물들에게 심각한 피해를 유발한다. 또한, 이들은 광분해, 생물분해 및 화학적인 분해에도 매우 큰 내성을 가지고 있기 때문에 상 하수 처리공정에서 과불화 화합물에 대한 제거율이 낮다. 국내의 경우는 아직까지 주요 하천과 호소에서의 이들의 오염현황에 대한 변변한 조사나 연구보고도 없는 실정이다. 본 논문에서는 과불화 화합물들에 대한 국내에서의 관심을 고조시키기 위해 과불화 화합물의 종류 및 유래, 위해성, 상수와 하수에서의 거동 및 처리공정으로 나누어 과불화 화합물들에 대해 간략하게 기술하였다.

• 해양환경안전학회지
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• 제5권2호
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• pp.1-14
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• 1999

To find characteristics and areas of greater risk of oil spill at the coastal waters in Korea, some of risk factors were analyzed with historical data of oil spill and marine traffic. As a result, it is characterized that frequency of oil spill is increasing year by year and greatest percentage of spill source is fishing boat. It is proposed that the ports of Ulsan, Yeosu, Incheon and Pusan will be designated as primary area of risk as they have a higher risk of oil spills and its response authority is required to maintain appropriate regional response capability for prompt and effective response to a future spill incident. In addition, the regional response equipments at Ulsan are examined under a assumption of a medium size spill and it is found that the use of chemical dispersant can be an alternative when mechanical containment and recovery is not feasible in this area, and the existing response equipments may be appropriate to address that size of spill. However, the response authority is required to maintain more numbers of stronger boom for unsheltered waters and more quantity of concentrate dispersant to disperse all spilled oils on the water, furthermore the response authority should be prepared for a possible future catastrophic spill with sufficient equipments.

• 한국문헌정보학회지
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• 제36권2호
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• pp.119-138
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• 2002

본 연구는 웹 환경에서 이용자들의 정보의 질과 권위에 대한 판단이 웹 탐색과정에서 정보의 선택과 이용에 어떻게 영향을 미치는가를 다루고 있다. 실험실환경에서 교수와 박사과정학생 총 16명을 대상으로 탐색실험을 실시하여, 로그 데이터, 생각 소리내어 말하기 (think-aloud), 인터뷰를 통하여 데이터를 수집하였다. 연구결과, 본 연구의 대상자들은 정보에 대한 판단을 탐색과정의 두 가지 단계에서 내리고 있음이 밝혀졌으며, 이는 예측적 판단과 평가적 판단으로 각각 분석되었다. 웹 정보의 질과 권위에 대한 판단성향과 판단에 영향을 미친 요소를 탐색과제의 유형, 이용자의 신분, 학문영역에 따라 비교하였다.

• 한국자동차공학회논문집
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• 제15권3호
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• pp.85-90
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• 2007

The main function of the Forward Vehicle Collision Warning System (FVCWS) is to warn a driver when he or she experiences dangerous situations caused by a forward vehicle. Warning distance algorithms under same dangerous circumstances are often various depending on automobile manufacturers and component suppliers. Human factors also should be considered to warn the driver at an adequate warning distance. Therefore, it is necessary to develop a system for evaluating the pertinent warning timing in an identically dangerous situation. The system consists of sensors for measuring speed and acceleration of subject vehicle and target vehicle, controllers to follow the velocity profile properly, and wireless telecommunication equipments for receiving or transmitting the measured data in a real-time. According to actual field tests, it is shown that the developed system is suitable to evaluate warning distance of FVCWS.

• 한국의류산업학회지
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• 제24권6호
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• pp.707-718
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• 2022

The metaverse is emerging as the next digital environment for people not only to interact and collaborate with others, but also to have virtual consumption experiences. In this study, virtual fashion items for the consumer's digital self are deemed significant products with consumption value. Drawing from the regulatory focus theory, this study examines how consumers' promotion and prevention focus influence value perception and buying behaviors of virtual fashion items in the metaverse context. The data were collected through an online survey. A total of 546 consumers in their twenties who are aware of the metaverse responded to a self-administered questionnaire. The results showed that promotion focus influenced all the perceived consumption values of virtual fashion items such as the economic, visual authority, hedonic, and social value, whereas prevention focus influenced only the visual authority value. Visual authority value negatively affected both purchase intention and willingness to pay premium price, while others had a positive effect. The findings provide theoretical evidence that consumers' regulatory focus is critical in buying virtual fashion items and suggest that marketers devise effective strategies to stimulate consumers' regulatory focus and to emphasize the economic, hedonic, and social value of the items in the metaverse context.