• 한국안전학회지
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• 제35권5호
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• pp.74-85
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• 2020

Smart phone zombie or Smombie means pedestrians who walk without attention to their surroundings because they are focused upon their smart phone. Because the traffic accidents and injuries caused by Smombie have been increased rapidly in recent years, the social attention and policies are needed to prevent it. This study was conducted to analyze Smombie's current status and some solutions used before and to propose new improved method through the latest ICT trend. In this study, we did the field survey to check Smombies at several places in Seoul through people counting, and found that a lot of pedestrians still use the smart phone while walking. And we analyzed many case studies about some solutions to prevent Smombies previously. The case studies include legal regulations, government policies, smart phone app services and facilities that are used before. We studied them through internet searches and reference studies and we also checked the current operating situation as visiting several places that the solutions actually has been operated. Therefore, we found there are some limitations in previous solutions in terms of effectiveness and management. To consider new solution that can be expected to overcome the limitations, we analyzed the latest ICT trends focused on features to utilize the Smombie prevention, especially video recognition and digital signage. In these days, video recognition has been developed rapidly with assistance of AI technology and it can recognize the specific pedestrian's characteristics such as holding smart phone as well as hair style, clothes, backpack and etc. On the other hands, the digital signage is the convergence device that includes big display, network connection and various IoT sensors. It can be used as public media in many places for public services as well as advertising. Through these analysis results, we show the requirements and the user scenario for the improved method to prevent Smombie. Finally, we propose to develop R&D technology to recognize Smombie exactly as pedestrian attributes and to spread creative contents to increase pedestrian's interest and engagement for Smombie prevention through digital signage.

• 대한치과기공학회지
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• 제34권1호
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• pp.45-56
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• 2012

Purpose: This study reviews the recent trend of Korean Academy of dental technology research. The data examined are the articles published in the Korean Journal of Korean Academy of dental technology from 1979 to 2011. Methods: The data are retrieved through the internet database Korean Academy of dental technology. The number of paper published is 540, published in 33 volumes of the journal. This study examines research methods, subjects, and author information. Results: Among the 540 articles collected, 422 are Original papers, 106 Clinical Technical Papers, 12case Other papers. 235 are experimental studies. Most experimental studies(235) have examined the ceramic(Porcelain) parts(117). The sole author of 315, co-author of 225 appeared. In turn of dental technicians, and students appeared. Conclusion: The study is to present basic data for research and to indicate the direction of their study in the future.

• 만화애니메이션 연구
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• 통권44호
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• pp.163-181
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• 2016

3D 애니메이션이 점점 추세가 되어가는 이 시대에 2016년 흥해한 작품 <주토피아>에 대한분석을 통해 이 작품에서 시도한 새로운 변화와 요소들이 그 작품의 흥행하는데 어떤 역할을 하였고 어떠한 표현들이 이 시대에 적합한 표현방식인가를 초점에 맞추어 작품을 디자인하는 과정에서 조형적 의미와 상징 그리고 캐릭터 동작과 표현의 의미를 이해하고 작품을 감상한다면 그 재미도 배로 즐길 수가 있다.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2006년도 추계학술대회 논문집 Vol.19
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• pp.45-46
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• 2006

Application of the carbon nanotube is increasing continuously since 1991. In the studies of the carbon nanotube for the display, emitter has been actively developed, especially in FED. Other studies of carbon nanotube are the materials of LED and PDP for backlight and dielectrical matter because carbon nanotube is good electric conductor. This report presents about the carbon nanotube for the display.

• 한국정밀공학회지
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• 제28권5호
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• pp.551-558
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• 2011

To analyze the effect of wear of wheel profile on the running stability of rolling-stock, theoretical and experimental studies were conducted on the profiles used in conventional lines. In experiment using 1/5 scale model to verify the results of the theoretical analysis, the test results of the critical speed for worn wheel profile samples show similar trend. In case of the conical type wheel profile(Profile 40), the equivalent conicity is increased with flange wear. But in case of the arc type wheel profile(Profile 20h), the equivalent conicity is decreased with flange wear. And the critical speed of the bogie was inverse proportion to the equivalent conicity. It is shown that the variation of the critical speed with the wheel wear could be changed according to the design concept and wear pattern of wheel profile. Results of the theoretical and experimental studies are discussed here.

• 미국학
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• 제44권1호
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• pp.81-112
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• 2021

As polarization intensified in the United States, the voting support of the presidential party lawmakers has become the most important source of power for the president. The presidential party has been believed to legalize the president's agenda in a unified government and prevent legislation opposed by the president from being passed by the Congress within a divided government. However, even under party polarization, all the lawmakers and factions of the presidential party have not voted in accordance with the president's policy preferences. Statistical analysis shows that lawmakers who corresponded to the ideology median of the presidential party most strongly supported the president's agendas during the unified government. However, lawmakers with extreme ideologies voted more actively for the president than those with median ones during the divided government. Furthermore, this trend has been amplified regarding ideological factions.

• 한국해양공학회지
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• 제36권3호
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• pp.194-210
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• 2022

Recently, an analysis method using machine learning for solving problems in coastal and ocean engineering has been highlighted. Machine learning models are effective modeling tools for predicting specific parameters by learning complex relationships based on a specified dataset. In coastal and ocean engineering, various studies have been conducted to predict dependent variables such as wave parameters, tides, storm surges, design parameters, and shoreline fluctuations. Herein, we introduce and describe the application trend of machine learning models in coastal and ocean engineering. Based on the results of various studies, machine learning models are an effective alternative to approaches involving data requirements, time-consuming fluid dynamics, and numerical models. In addition, machine learning can be successfully applied for solving various problems in coastal and ocean engineering. However, to achieve accurate predictions, model development should be conducted in addition to data preprocessing and cost calculation. Furthermore, applicability to various systems and quantifiable evaluations of uncertainty should be considered.

• Journal of the Korean Data and Information Science Society
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• 제18권4호
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• pp.891-902
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• 2007

It has been 12 years since PIFF is first started. PIFF is first started in 1966 to provide opportunity for audiences who love movies could actively participate in visual culture and opportunity for Korean movies could stand out in the world by showing internationally recognizable movies. To make energetic film culture in Korea, there should be thoughtful analysis on old PIFF and effort to solve the problem. For this reason, we researched on audience trend and satisfaction level who participated in 12th PIFF to find out hidden problem of PIFF, and provide a good direction which could solve the given problem.

• 응용통계연구
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• 제16권1호
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• pp.15-31
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• 2003

Lake Ontario에서 수년간 측정된 실제 생물학적 지표 자료의 각 변수에 대하여 관찰시점의 불규칙성과 의존성을 고려한 탐색적 분석모형의 수립과정에 대하여 연구하였다. 이 상점을 제거한 후 trend와 seasonal component를 수정 한 선형 모형으로부터 잔차를 계산하고 이로부터 variogram과 correlogram을 그려보았다.

• 산업경영시스템학회지
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• 제8권11호
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• pp.1-16
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• 1985

기업이 생산하고 있는 생산고추세를 이익도표에 의해서 그 유동상태를 수식화 함으로서 경영활동의 흐름을 과학화하면서 사실의 파악을 체계화하는 연구로서 이제까지의 연구에서는 이들이 폐쇄적이며 개별적인 부문활동으로만 전개됨으로서 전사적 경영이 결여되면서 생산활동에 대한 기업수익과의 상관분석이 불가능했던 것이나 본 연구에서는 이익도표와 생산고추세를 통합함으로서 새로운 체계를 마련하는 동시에 사전분석기법을 개발하고자 시도한 것이다.