• Journal of the Korean Crystal Growth and Crystal Technology
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• v.11 no.1
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• pp.33-37
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• 2001

Kaolinite was synthesized through th acid treatment of mixture which consisted of psudoboehmite and colloidal silica in hydrothermal reaction at $213^{\circ}C$ under autogeneous vapor pressure. Crystallization process was characterized by X-ray powder diffraction pattern, IR spectra and Hinckley index was calculated. The synthesis in acidic solution promotes the dissolution of the starting materials and leads to crystallization of kaolinite. The rate of crystallization to kaolinite and stacking defect were found to e affected by kind of anion, acidity and starting materials.

• Journal of the Korea Convergence Society
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• v.9 no.5
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• pp.7-14
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• 2018

The purpose of this study is to analyze the effect of commuter's departure time on transportation system in future traffic system operated autonomous vehicle using agent based model. Various scenarios have been set up, such as when all passenger choose a similar departure time, or if the passenger chooses a different departure time. Also, this study tried to analyze the effect of road capacity. It was found that although many of the scenarios had been completed in a stable manner, many commuters were significantly coordinated at the desired departure time. In particular, in the case of a reduction in road capacity or in certain scenarios, it has been shown that, despite excessive schedule adjustments, many passengers are unable to commute before 9 o'clock. As a result, it is suggested that traffic management and pricing policies are different from current ones in the era of autonomous car operation.

• Journal of Korean Society of Transportation
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• v.24 no.2 s.88
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• pp.157-168
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• 2006

Spatial detection system such as AVI, GPS, and Beacon etc. can provide spatial travel time only after a vehicle Passes through a road section. In this context, majority of the existing studies on the link travel time estimation area has focused on the arrival time-based link travel time estimation. rather than departure time-based link travel time estimation. Even if some of the researches on this area have developed departure time-based link travel time estimation algorithms, they are limited in that they are not applicable in a real-time mode. The objective of this study is to develop an departure time-based link travel time estimation algorithm which is applicable in a real-tine mode. Firstly, this study discussed the tradeoff between accuracy and timeliness of the departure time-based on-line link travel time estimates. Secondly, this study developed an departure time-based on-line link travel time estimation algorithm which utilizes the Baysian inference logic. It was found that the proposed approach could estimate departure time-based link travel times in a real-time context with an acceptable accuracy and timeliness.

• International Journal of Highway Engineering
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• v.9 no.4
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• pp.21-32
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• 2007

The linear traffic model(Vertical queueing model) that is adopted widely in traffic flow estimation assumes that all vehicles have the identical motion before joining a queue at the stop-line. Thus, a queue is supposed to form vertically not horizontally. Due to the simplicity of this model, the departure time of the leading vehicle is assumed to coincide with the start of effective green time. Thus, the delay estimates given by the Vertical queueing model is not always realistic. This paper explores a microscopic traffic model(a Kinematic Car-following model at Signalised intersections: a KCS traffic model) based on the one dimensional Kinematic equations in physics. A comparative evaluation in delay and sensitivity of delay difference between the KCS traffic model and the previously known Vertical queueing model is presented. The results show that the delay estimate in the Vertical queueing model is always greater than or equal to the KCS traffic model; however, the sensitivity of delay in the KCS traffic model is greater than the Vertical queueing model.

• Journal of the korean Society of Automotive Engineers
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• v.11 no.6
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• pp.17-23
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• 1989

자동 Brake제어장치(ABCS)는 정차중에는 brake pedal을 놓아도 되고 gear 중립시에는 clutch pedal까지 놓아도 제동력이 계속 되므로 휴식할 수 있으며 출발시에는 전후진, 상하경사에 관계없이 쉽게 출발하므로 자동차 문화에서 혁신적인 발명품이라 할 수 있을 것이다.

• 한국ITS학회:학술대회논문집
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• v.2006 no.10
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• pp.50-55
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• 2006

• Digital Contents
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• no.5 s.96
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• pp.16-16
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• 2001

최근 정부는 불법 SW에 대한 단속에 있어 예전에 없던 강한 단속을 표방했다. 정부의 이러한 노력은 물론 정품 사용에 대한 토대를 마련한다는 의미에서 의지만큼이나 강하게 출발을 했다. 그러나 정부의 강한 단속은 그리 오래가지 못했다. 정품 사용의 토대를 마련하자는 취지에서 출발한 것이 언론에 의해 왜곡되어 단속이 그리 오래가지 못한 요인이 된 것이다.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2001.05a
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• pp.1094-1099
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• 2001

차량이 정지상태에서 출발하는 과정에서 클러치는 엔진의 동력을 구동축에 전달하는데, 이 순간 차량이 울컥거리는(clunking) 현상이 자주 나타난다. 이와 같이 발생한 충격과 진동은 작업자에게 불편함을 줄뿐만 아니라 차량의 상품가치를 떨어뜨리는 요인이 된다. (중략)

• The Optical Journal
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• s.102
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• pp.44-45
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• 2006

(주)롯데캐논이 캐논코리아 비즈니스 솔루션(주)(대표·김대곤/www.canon-bs.co.kr)로 사명을 변경하고 한국시장에서의 힘찬 출발을 선언했다. 3월 3일 잠실 롯데호텔서 New C.I 선포식을 통해 기존 사무기기 외 잉크젯 플로터, 전자사전 등 판매채널을 통합, ‘캐논’브랜드 파워로 한국 내 사무기기 M/S를 확대한다는 새로운 비전을 발표했다.

• 프린팅코리아
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• v.12 no.10
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• pp.98-99
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• 2013

코닥은 최근 챕터11(파산보호)로 인한 기업 재편 과정을 마무리하고, 비즈니스 이미징에 핵심화된 기업으로 새출발한다고 밝혔다. 이와 관련해 한국코닥은 지난 9월 9일 그랜드 힐튼호텔 비즈니스센터에서 에반드로 아시아태평양지역 마케팅 부사장 초청 기자간담회를 개최했다.