• Title/Summary/Keyword: Reason

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A Study on the Test Evaluation Method of LKAS Using a Monocular Camera (단안 카메라를 이용한 LKAS 시험평가 방법에 관한 연구)

  • Bae, Geon Hwan;Lee, Seon Bong
    • Journal of Auto-vehicle Safety Association
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    • v.12 no.3
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    • pp.34-42
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    • 2020
  • ADAS (Advanced Driver Assistance Systems) uses sensors such as camera, radar, lidar and GPS (Global Positioning System). Among these sensors, the camera has many advantages compared with other sensors. The reason is that it is cheap, easy to use and can identify objects. In this paper, therefore, a theoretical formula was proposed to obtain the distance from the vehicle's front wheel to the lane using a monocular camera. And the validity of the theoretical formula was verified through the actual vehicle test. The results of the actual vehicle test in scenario 4 resulted in a maximum error of 0.21 m. The reason is that it is difficult to detect the lane in the curved road, and it is judged that errors occurred due to the occurrence of significant yaw rates. The maximum error occurred in curve road condition, but the error decreased after lane return. Therefore, the proposed theoretical formula makes it possible to assess the safety of the LKA system.

Investigation for Purification of Japanese Style Terminology Used in the Korean Fishing Vessels (어선에서의 일본식 용어 순화에 관한 연구)

  • Kim, Young-Un
    • Journal of Fisheries and Marine Sciences Education
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    • v.25 no.4
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    • pp.836-847
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    • 2013
  • In contemporary society, shipping and fishery industry tend to use Japanese language or Japanese style terminology extravagantly. It becomes a reason of preventing the communications between crews who have been working for many years and the beginners in the ships. Also the crews cannot easily understand the contents of the manuals that is explained in only Korean language. For this reason, the foreign employee have to study Japanese style terminology before begin start their work. I strongly believe that this is one of the major national contempt. It is reasonable to expel Japanese style terminology from the vessel if possible to enable free communications to each other. I inspected and examined about purification of 125 Japanese style terminology that is already examined in the fishing vessels 11 years ago. So, I expect this paper is a research for the eradication of the Japanese style terminology in the Korean fishing vessels.

Development of Laser Induced Real Time Photoacoustic Tomography Imaging System and Phantom Evaluation (레이저 유도방식의 실시간 광음향 단층영상 기술 개발과 팬텀이미지 평가)

  • Ryu, Sang-Hun;Shin, Dong-Ho;Song, Chul-Gyu
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.61 no.6
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    • pp.879-884
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    • 2012
  • Photoacoustic Tomography (PAT) is a promising medical imaging modality by reason of its particularity. It combines optical imaging contrast of optical imaging with the spatial resolution of ultrasound imaging and can demonstrate change of biological feature in an image. For that reason, many studies are in progress to apply this technic for diagnosis. But, real-time PAT system is necessary to confirm a biological reaction induced by external stimulation immediately. Thus, we developed a real-time PAT system using linear array transducer and self-developed Data acquisition board (DAQ) resources, To evaluate the feasibility and performance of our proposed system, two type of phantom test were also performed. As a result of those experiments, the proposed system shows enough performance and confirm its usefulness.

Power and Aesthetic Images in Men's fashion (권력과 남성 패션에 표현된 미적 이미지)

  • 이민선
    • The Research Journal of the Costume Culture
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    • v.11 no.2
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    • pp.177-192
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    • 2003
  • The purpose of this study is to define masculinity as a shilling concept, stemming from the process of power groups controlling the conscious and unconscious of human beings to diffuse their ideologies, and to examine how masculinity has been reflected in aesthetic images in men's bodies and fashion. As for the research methodology, literary research and demonstrative studies through the analysis of pictures and photos were undertaken. Emerging in the wake of the Industrial Revolution in the 19th century, the absolute powers such as the bourgeois elite, males and the Wet emphasized the importance of reason, and made aesthetic images such as authority, robustness and modernization in men's fashion. In the conversion to the Information Society, poweres horizintally spread out over society. By using non-reason, diverse power groups have broken down traditional masculinity and express diverse aesthetic images in men's fashion such as eroticism, multi-culturalism and liberation.

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Men's Hunting Clothes in the 1920s (1920년대 미국 사냥복에 관한 연구)

  • Lee, Young-Joo
    • Journal of the Korean Society of Costume
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    • v.57 no.4 s.113
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    • pp.1-8
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    • 2007
  • In the decade of the 1920s in an America, with booming of economy, people had more money. And with the development of transportation, people can afford expensive traveling throughout Europe. With this reason they were exposed to a nobility of European style and liked royalty more than before. American hunting man wanted traditional dress to express their status as a psychological code and the reason of the existing very similar hunting garment in nowadays is based on this belief. The purpose of this study is not merely understanding the styles of American Men's hunting and shooting garments in the 1920s but understanding the psychology of the people. People quite clearly do not dress according to function ore need alone and, in fact the consumption of clothes increasingly serves no other purpose than to fulfill or express psychological or social, rather than practical need.

Annual Variation and Trends of the Arctic Tropopause Pressure (북극지역 대류권계면 기압의 연변화와 변화경향)

  • Choi, Woo Kap;Kim, Hyesil
    • Atmosphere
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    • v.20 no.3
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    • pp.355-366
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    • 2010
  • The tropopause pressure in the Arctic region is calculated by the conventional thermal and dynamical methods using 30-year reanalysis data. The tropopause pressures determined thermally and dynamically both show semiannual cycles with one peak in April and May, and another in October, contrary to the tropopause temperatures. Although tropopause levels are higher both in January and July, the level of the tropopause in January seems to be associated with the stratospheric temperatures while that of July seems to be associated with the tropospheric temperatures. During the 30-year period the most significant trend appears in April, and it is shown that the altitude of the Arctic tropopause has been rising. Although a potential reason for this trend is stratospheric cooling due to ozone depletion, significant tropospheric warming in April is considered to be another reason.

The Changes of Health Care Utilization and Cause of Outpatients at an Oriental Medicine Hospital

  • Kim, Ji-Yong;Park, Seong-Sik
    • The Journal of Korean Medicine
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    • v.28 no.4
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    • pp.95-103
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    • 2007
  • Objectives : The aim of this study was to investigate the changes of attitude toward the oriental medicine for 10 years. Methods : A questionnaire was done about general characteristic of patient, the decision-maker of use and the reason of choice or alteration for oriental medicine hospital. Results : The results of this survey are as follows: For 10 years, sex ratio of outpatients is similar, but age distribution is even at all ages. The choice for oriental medicine is more determined by oneself than by others. The recommenders are more variable increasingly. The most common cause of moving from western medicine is to get the more effective treatment. The more the concomitant users are increasing, the more the patients that did not give notice to the western doctor about the dual therapies is increasing, also. The most frequent reason without a notice is "being afraid of western doctor's bias". Conclusions : The appropriate transfer system between oriental and western clinic must be constructed and the proper recognition about dual therapies will be needed among patients and especially dual doctors.

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Six Sigma Paradox St Next Generation of Six Sigma (Six Sigma의 모순 및 향후 전개 방향)

  • 허원석;김동준;장중순
    • Proceedings of the Korean Society for Quality Management Conference
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    • 2004.04a
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    • pp.155-159
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    • 2004
  • Continuous quality improvement has generally been recognized as an essential requirement for a company to stay in business. For this reason, Six Sigma plays an important role In reducing cost and development time of a product and achieving high quality products in a competitive market. The Six Sigma has proven that it is possible to achieve dramatic performance improvement for conducting business. However, several recognized Six Sigma companies have suffered the financial troubles, even if the Six Sigma should be successfully deployed in their business organizations. In this paper, the reason of this paradox is represented and discussed for a successful Six Sigma deployment, including next generation of Six Sigma.

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Cause Analysis and Prevention of fishing Vessels Accident (어선사고의 원인분석 및 예방대책에 관한 연구)

  • Lee, Hyong-Ki;Chang, Seong-Rok
    • Journal of the Korean Society of Safety
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    • v.20 no.1 s.69
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    • pp.153-157
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    • 2005
  • The injury accidents in fishing vessels account for $67.2\%$ of all marine injury casualties$(1997\~2001)$ and is on an increasing trend every year. Also, it is remarkable for the injury accidents to be basically caused by human errors. This study aims to investigate the human error of injury accidents in fishing vessels and presents the injury preventing program in them. Human errors were analysed by the methods such as SHELL & Reason Hybrid Model, GEMS Model adopted by International Maritime Organization(IMO). Based on the analysis, the following propositions were made to reduce the fishing vessels accidents by human errors : improvement of hazard awareness and quality of personnel, establishment of safety management system, and enforcement of vessels inspection.

Diagnostic Laryngeal Electromyography (진단적 후두근전도)

  • Chung, Sung-Min
    • Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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    • v.19 no.2
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    • pp.107-112
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    • 2008
  • Diagnostic laryngeal electromyography (LEMG) relatively evaluates the electrophysiologic status of the larynx and provides critical clinical informations that no other tests can provide. However, LEMG is still not widely applied as a routine tool in clinical practice. One reason for this is the technical and interpretative difficulties of LEMG. But if LEMG is performed by a team approach consisting of an otolaryngologist and a neurologist, the technique and the interpretation of LEMG are not difficult to master. Another reason is that there is still not exact standard guideline for clinical application of LEMG. LEMG is an essential diagnostic test in evaluating patients with neuromuscular disorders, particulary vocal fold immobility, reduced mobility of vocal fold. The more we have used LEMG, the more we have found it useful in the evaluation and treatment of voice disorders, and the role of LEMG will be extended.

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