• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2005년도 추계 종합학술대회 논문집
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• pp.590-595
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• 2005

RFID(Radio Frequency Identification)는 효율적이고 정확하게, 제품을 인식하는 새로운 수단으로 대두되고 있다. RFID 기술사용은 산업분야의 초과 재고조사, 위조품, 노동 비용을 감소시키고 공급망을 향상시킬 수 있을 것이다. RFID 기술은 제품을 인식하기 위해 RF를 사용한다. 각 제품에는 EPC(Electronic Product Code)라는 작은 태그가 부착되어 있으며, 특정 상품 정보를 포함하고 있다. 각각의 EPC는 유일하며 개개의 제품을 인식할 수 있다. EPC 태그가 특정 위치로 이동하게 되면 리더는 태그를 읽게 되며, 태그 데이터는 데이터 저장 시스템인 EPC 정보서비스에 저장된다. 모든 서비스가 웹 서비스를 통하여 EPC 정보서비스로 접근될 수 있으며, 사용자가 서비스를 요구할 때 마다 사용자에게 원하는 데이터를 제공해 준다. 본 연구에서는 EPC 정보서비스를 이용하여 재고관리 시스템을 구현해 보았다.

• 한국의류학회지
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• 제41권3호
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• pp.527-536
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• 2017

This study investigated the detergency and functionality of laminating finished fabrics for outdoor wear based on repeated washing. Laminating finished fabrics were selected as the main fabrics for outdoor wear and used as test fabrics. The effects of outdoor exclusive detergent and normal neutral detergent were examined according to washing time, temperature, rpm and detergent concentration based on the use of a Terg-O-Tometer. Re-soiling of the test fabrics was measured by Florio-Mersereau. Permeability, water repellency, water resistance and absorbency were estimated to measure improvements and effects in regards to outdoor exclusive detergent in optimal washing conditions. The detergent effect of outdoor exclusive detergent was superior compared to normal neutral detergent. Re-soiling was lower with exclusive outdoor detergent than with normal neutral detergent. The measurement of functionality for laminating finished fabrics before and after washing indicated that functionality was decreased with repeated washing.

• 한국산학기술학회:학술대회논문집
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• 한국산학기술학회 2009년도 춘계학술발표논문집
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• pp.561-564
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• 2009

본 연구는 벤처기업의 기술사업화 촉진을 위한 전략 틀을 제공하고, S사를 통해 실제적인 기술사업화 사례를 제안하고자 한다. 기존의 기술사업화 내용이 국부적인 내용을 취급하고 있는 반면, 본 연구에서는 기존에 경영학에서 연구된 여러 가지 전략적 요소들을 재통합함으로써 기술이전을 받았거나 이미 개발된 기술에 적용하기에 적합한 하나의 새로운 종합적이고 구체적인 기술사업화 틀을 제공하고 있다. 주요 내용으로는 시장에서의 니즈를 해결할 수 있는 기술의 독특성을 파악하여 이를 제품으로 아이디어를 창출하고, 도출된 제품을 대상으로 기술사업화 기업이 사업화를 실행하였을 경우, 기능적인 면과 전략적인 면에서 사업으로의 생존 가능성과 발전 가능성 진단을 통하여 선별한 후, 해당 분야의 산업지도를 파악하여 비즈니스 모형을 도출하고, 이에 적합한 시장진입전략과 확장전략을 개발하는 절차로 진행된다. 이런 절차에 따라 실제적인 국내 벤처기업인 S사에 적용해봄으로써 제안한 분석기법의 효과성을 증명하기 위하여 본 연구를 수행한다.

• 한국환경교육학회지:환경교육
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• 제17권1호
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• pp.77-89
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• 2004

This study aims to consider interrelations and reasonability to inquiry elements of environment units in 10th Science textbooks of 7th curriculum on the basis of their inquiry contexts, processes and activities. Frequency of inquiry contexts is 59.9% of the highest value in natural environment context but is 4.0% of the lowest one in techno-industrial context. Measurements, inferences, predictions, experiments, data-interpretations, correlations, conclusionreveals in inquiries are in all the textbooks, but observations and classifications, hypothesis generations, controlling variables, experimental designs and generalizations are not in some textbooks. Discussions, experiments, investigations in inquiry activities are included in all the textbooks. However, inspections are not appeared in the all the books. Based on the above results, social and techno-industrial inquiry contexts in the varied scopes are necessary in the environment curricula with a unified direction. Inquiry processes with pro-environmental behaviors as a last goal might be given into the curricula, having tasks that could be understand unified inquiries. In addition, inspections with effectiveness might be thrown into the scene of education.

• 대한임상전기생리학회지
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• 제8권2호
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• pp.1-6
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• 2010

Purpose : The purpose of the present study was to investigate the effects of ballistic stretching techniques on the flexibility, muscle strength and electrophysiologic nature. Methods : The subjects of the study were 20 young adults including 10 for the ballistic-stretching group, and 10 for the control group. This study measured hamstring flexibility, muscle strength, median frequency and root mean square on electromyography signals. All measurements were analyzed using independent sample t-tests. Results : VAS, FPRS, and ODI showed significant pain decrease in all groups except for the ODI measurement in the 0.5㎐ group. There were no significant differences according to frequency levels. Conclusion : It was understood that the effect of stretching was greater when performing ballistic stretching techniques.

• 대한안전경영과학회지
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• 제13권4호
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• pp.179-191
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• 2011

When it comes to the training program conducted by company to improve job performance ability, it would be not a investment but a waste if the training contents is not practically applied to the business accomplishment. Even though some people raise a question on the job application of postal distance training, funded by employment insurance, the study on the job application of postal distance training shows that the components of the training program have a positive effect on it and the model has 60.5% validity. Moreover, its control effect on environmental support and individual characteristics has been partially established. The study has been conducted by questioning survey with the employees who completed a postal education 3 months ago. With the result, we can find that the postal distance training benefits employees to improve their job performance abilities and expect that it continuously plays a crucial role in the field of company training through the development of high-quality training programs.

• 한국게임학회 논문지
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• 제11권6호
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• pp.95-102
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• 2011

현재 와이파이가 지원되는 스마트폰 시장이 급격히 증가하면서 스마트 폰을 기반으로 하는 네트워크 콘텐츠 가 빠르게 보급되고 있다. 하지만, 아직까지 와이파이가 지원되지 않거나 블루투스 환경만을 제공하는 피처폰이나 기타 멀티미디어 기기 등에서는 네트워크 콘텐츠를 제공하기 힘든 환경이다. 본 논문에서는 블루투스, 와이파이 등의 기술보다도 저전력, 저가격, 사용의 용이성, 다채널, 브로드캐스팅을 지원하는 지그비 기술을 이용하였다. 근거리 네트워크 게임에 지그비 기술을 이용함으로써 다양한 형태의 네트워크 게임을 개발할 수 있을 것이다. 또한, 이를 이용한 다양한 무선 네트워크 컨텐츠의 개발을 기대할 수 있을 것이다.

• 한국간호교육학회지
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• 제17권2호
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• pp.149-158
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• 2011

Purpose: The present study was to examine the effects of a communication training program on nursing students' interpersonal communication and relationships. Methods: This study was quasi-experimental research using a non-equivalent pre-post design. The subjects were 40 sophomore nursing students who were divided into an experimental group of 20 members and a control group of 20 members. The communication training program consisted of 8 sessions of small group training and each session lasted 120 minutes. A pretest, posttest and follow-up test (6 months after the program was terminated) were conducted to measure Inter-personal Communication Inventory and Relationships Scale. Data was analyzed by $X^2$-test, independent t-test, paired t-test and Friedman test with SPSS. Results: The communication training program was very effective in enhancing the nursing students' communication and interpersonal abilities. Nursing students' communication ability in the experimental group, however, decreases after 6 months while there is no change in the control group. Nursing students' interpersonal relationships in the experimental group was maintained at the follow-up test. Conclusions: This study supports that a communication training program has a positive effect on improving the nursing students' communication skill and interpersonal relationships.

• Journal of Electrical Engineering and Technology
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• 제13권2호
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• pp.659-668
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• 2018

This paper proposes an optimization approach of a grid-connected photovoltaic and wind hybrid energy system including energy storage considering voltage fluctuation in the electricity grid. A techno-economic analysis is carried out in order to minimize the size of hybrid system by considering the benefit-cost. Lithium-ion battery type is used for both managing the electricity selling to the grid and reducing voltage fluctuation. A new technique is developed to limit the voltage perturbation caused by the solar irradiance and the wind speed through determining the state-of-charge of battery for every hour of a day. Improved particle swarm optimization (PSO) methods, referred to as FC-VACPSO which combines Fast Convergence Particle Swarm Optimization (FCPSO) method and Variable Acceleration Coefficient Based Particle Swarm Optimization (VACPSO) method are used to solve the optimization problem. A comparative study has been performed between standard PSO method and PSO based methods to extract the best size with the benefit cost. A sensitivity analysis has been studied for different kinds and costs of batteries, by considering variable and constant state-ofcharge of battery. The simulations, performed under Matlab environment, yield good results using the FC-VACPSO method regarding the convergence and the benefit cost of the hybrid system.

• 대한인간공학회지
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• 제26권2호
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• pp.61-66
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• 2007

The networked home is connected to the external world using a high speed network. The devices inside the house are connected using a wired and wireless network. Acquiring the user data is an essential step for designing the user interface in user centered design. In networked home, the numbers of use cases are exponentially increased because connected use cases are considered. Because the user data for networked home are too complicated, they are acquired and analyzed by a structured methodology. We surveyed 40 people to acquire the context data home and analyzed by 5W1H (Who, Where, What, When, Why, How). We established a framework for the user data using tasks, user, time, space, objects and environment. The data for home context was structured by our framework. This framework makes simple the home context and is helpful for user interface design in home network.