http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
소비자의 항공사 선호도에 대한 빅데이터 융합 기반 마케팅 전략
천용호,이승준,박수현 대한산업경영학회 2019 산업융합연구 Vol.17 No.3
빅데이터의 가치가 중요하게 인식되면서 기존의 방대한 데이터들과 비정형 데이터들을 분석할 수 있는 JAVA 및 R 프로그램들이 개발되고 활용도가 높아짐에 따라 정부를 비롯한 공공기관, 민간기업 등에 실질적으로 도입 및 개 선 할 수 있어 의사결정의 고도화가 가능하게 되었다. 본 연구에서는 소비자의 항공사 선호도에 따른 마케팅 전략을 수 립하기 위해 뉴스 데이터를 클롤링하고 이를 텍스트 마이닝 기법을 통해 분석을 수행하였다. 본 연구는 과거 빅데이터 에서 얻기 어려웠던 데이터들을 고도의 빅데이터 활용 프로그램 기법으로 소비자의 항공사 선호도를 분석하여 분석 결 과에 따른 마케팅 전략을 수립하는데 의의가 있다. As the value of big data is recognized as important, it is possible to advance decision making by effectively introducing and improving the development and utilization of JAVA and R programs that can analyze vast amounts of existing and unstructured data to governments, public institutions and private businesses. In this study, news data was collated and analyzed through text mining techniques in order to establish marketing strategies based on consumers' airline preferences. This research is meaningful in establishing marketing strategies based on analysis results by analyzing consumers' airline preferences using high-level big data utilization program techniques for data that were difficult to obtain in the past.
슬관절 전치환술 환자의 재활운동 프로그램이 하지 근 기능 및 통증에 미치는 영향
천용호(Chun, Yong-Ho),이원재(Lee, Won-Jae),이소정(Lee, So-Jung) 한국체육과학회 2017 한국체육과학회지 Vol.26 No.3
The purpose of this study is to identify the effects of rehabilitation exercise program participated by total knee arthroplasty patients on the functions and pains of lower limb muscle. For this, I have organized an experiment group comprised of six subjects and a controlling group comprised of another six subjects, all of whom are female elderly patients with total knee arthroplasty and made measurements of balancing ability, walking ability, muscular functions and pains among female elderly subjects after explaining to them about the purpose of study, procedure and precautions and the rehabilitation exercise program is focused on lower limbs and those belonging to the experiment group only have been instructed to engage in exercise for 60 minutes per session, three sessions per week for six weeks in total. The research findings are as follows. 1. The experiment of standing on left leg only with eyes open indicates that the static balancing ability has approved for both the experiment group and the control group. 2. The experiment of walking 2.44 m indicates that the dynamic balancing ability has approved for both the experiment group and the control group. 3. The experiment of stable walking ability indicates that the walking ability has improved for both the experiment group and the control group. 4. The experiment of sitting and standing back up indicates that the muscular functions have improved for both the experiment group and the control group. 5. The experiment of pain examination indicates that the extent of pains has decreased for both the experiment group and the control group. 6. The experiment group has improved the balancing ability, walking ability and muscular functions with decreased pains more than the control group. The experiment results demonstrate that there is no statistically significant difference between the experiment group and the control group but that the experiment group has seen better results in recovery of muscular functions and pain relief based on measurements than the control group over a period of time although there are no statistically significant differences between the two groups due to a relatively short research period. I present this as a basic material in giving an exercise prescription to total knee arthroplasty patients and expect it to be helpful for patients to understand the importance of rehabilitation exercise program after operation and to enhance the outcomes of rehabilitation program, and I hope this study will lead to further long-term studies applicable to both upper and lower limbs instead of being applicable to a specific region with complex resistance exercise incorporated into them.
컴퓨터 해석을 통한 사출압축성형의 성형특성에 관한 연구
천용호 ( Y. H. Chun ),안형광 ( H. G. An ),류민영 ( M. Y. Lyu ) 한국고무학회 2012 엘라스토머 및 콤포지트 Vol.47 No.4
사출성형은 고분자성형법 중에서 가장 광범위하게 활용되고 있다. 사출성형은 전형적인 사출성형 외에 가스사출, 물사출, 그리고 사출압축성형 등과 같이 특수한 사출성형방법들이 쓰인다. 사출압축성형은 사출과 압축공정이 합쳐진 것으로 균일한 물성 및 성형의 정밀도를 향상시키기 위하여 사용된다. 또한 사출압축은 잔류응력을 줄이는데도 효과적으로 사용되고 있다. 본 연구에서는 성형품의 형상에 따라 다양하게 나타나는 사출압축성형의 특성에 대해서 컴퓨터 해석을 통해 분석하였다. 성형품에 벽이 있는 제품은 벽의 두께가 압축의 방향과 직각이므로 압축효과가 작게 나타났다. 사출압축성형을 일반사출성형과 비교하였을 때 수축의 균일성 및 수축량 또는 성형수축률이 작게 나타나서 정밀성형에 유리하게 나타났다. 실험계획법을 통해 실제로 제작되고 있는 렌즈에 대해서 최적 사출압축조건을 구하고 이의 결과를 사출성형의 결과와 비교분석하였다. Injection molding is one of the widely used polymer processing operations. It is being used for not only conventional injection molding but gas injection molding, water injection molding, and injection compression molding. Injection compression molding involves injection and compression operation, and it gives uniform physical property and high dimensional quality of product. In this study, injection compression characteristics for various product shapes have been investigated by computer simulation. Product containing side wall showed not much effective in injection compression molding since wall thickness direction was perpendicular to the compression direction. Uniform and low shrinkage was observed in injection compression molding comparing conventional injection molding. Subsequently injection compression molding can be used for molding precise product. Optimal injection compression molding condition was obtained using design of experiment for plastic lens and the results were compared with conventional injection molding.
이동보안시스템에서 폐색영역에서의 소형무인비행체 위치 및 방향 추적
문용호,천승현,하석운,Moon, Yong-Ho,Cheon, Seung-Hyeon,Ha, Seok-Wun 대한임베디드공학회 2015 대한임베디드공학회논문지 Vol.10 No.5
In his paper, we propose the graphic-based direction tracking system that be able to detect the current location and direction of the flight object and virtually run the pointing to the flight direction when a small UAV is located in the occlusion area behind buildings or obstacles in the moving surveillance systems. Based on the experimental results about the simulation flight path extracted from the Mission Planner we found the proposed system operates the desired flight mission effectively in tracking.
템플릿 정합을 이용한 소형 무인비행체의 자동 착륙 기법
김종우,천승현,하석운,문용호 한국항공우주학회 2015 한국항공우주학회 학술발표회 논문집 Vol.2015 No.11
최초 군사용으로 이용되어 온 무인비행체는 촬영, 배송, 통신, 환경 등의 다양한 산업 분야에 응용되고 있으며, 사람이 직접 조종하는 비행형태에서 자동항법기술을 이용한 자동 비행의 형태로 발전해오고 있다. 대체적으로 GPS 수신기를 이용하여 무인기 비행경로 및 착륙지점을 비행하게 되는데, 지형이나 건물, 날씨 등 환경적인 요인으로 GPS 위치오차가 발생하는 단점이 있다. 이러한 자동 비행의 한계점을 보완하기 위해 비행환경에 따라 능동적으로 비행계획 수립 및 변경, 충돌회피, 자동이착륙과 같은 자율비행 기술 연구가 요구된다. 본 논문에서는 카메라가 장착된 소형무인기를 자동 비행한 후에 영상처리기법인 템플릿 정합 기법을 이용하여 자동적으로 정확히 착륙위치에 착지할 수 있는 방법을 구현하였다. Unmanned Aerial Vehicles that have been used for military use are utilized in various industrial fields such as photography, shipping, communications and environment and they have been developed in the form of automatic flight using the autopilot technology. In general, when they are flighted along their flight path or are landed in the touchdown area using their equipped GPS receivers, they have disadvantages that occurs GPS position errors and landing failure by environmental factors such as terrain, buildings and weather. In order to improve these disadvantages, it is necessary to develop an autonomous flight technology that use object recognition method. In this paper, we propose an automatic landing scheme that be able to land in the landing area exactly after a free flight by applying the template matching technique.