ECU HILS를 이용한 실차 주행 조건에서의 인젝터 평가시스템

이충훈,Lee, Choong-Hoon 한국생산제조학회 2010 한국생산제조학회지 Vol.26 No.1

A fuel injection system using an ECU HILS as an alternate to a vehicle test for the fuel injectors was developed. The throttle position, vehicle speed, engine speed, crank position, cam position, intake air flow, and several other sensor signals that are supplied to the ECU were measured and recorded as a data file for a vehicle driven in the FTP-75 mode in a chassis dynamometer. Electric signals that are equivalent to the sensor signals from the vehicle are reconstructed from the recorded data file using data acquisition boards, microprocessors, and computers. All sensor signals are supplied to the ECU with synchronized timing using a computer program. The findings show that the cost and time of vehicle experiments can be reduced using the ECU HILS system. Moreover, the repeatability of the generation of sensor signals can enhance the accuracy of a range of experiment related to vehicle testing. An ECU scanner that scans the sensor signals that are input to the ECU through a serial port was used to assess the accuracy of the reconstructed signals. The scanning results show good agreement with the reconstructed input signals. Injectors were connected to the ECU HILS system and were driven by the system to measure the quantity of injected fuel.

충돌제트의 유량분포 및 혼합특성에 관한 실험적 연구

이충훈,정영호,정석호,Lee, Chung-Hun,Jeong, Yeong-Ho,Jeong, Seok-Ho 대한기계학회 1997 大韓機械學會論文集B Vol.21 No.1

Mixing process of impinging jets of liquid oxidizer and liquid fuel is simulated by using water and sodium carbonate (Na$_{2}$CO$_{3}$) solution. The shapes of liquid sheets are visualized and flowrate distributions are measured by collecting droplets using measuring cells. Mixing charateristics are studied by using acid-base titration. Stable liquid sheets are formed and two liquid jets are well mixed for symmetric impinging jets. Similarity in flowrate distribution for various measuring heights is observed. For asymmetric impinging jets, liquid sheets become unstable as the difference in the velocities of jets increases. In some extreme cases, liquid sheets are not formed and the jets are separated. Dimensionless variables are adopted demonstrating similarly in flowrate distribution. Mixing characteristics vary significantly with experiment conditions.

OLED 산업과 시장 동향

이충훈,Lee, Chung-Hun 한국정보디스플레이학회 2011 인포메이션 디스플레이 Vol.12 No.4

Hydrogenated Amorphous Si의 응용

이충훈,김철하,Lee, Chung-Hun,Kim, Cheol-Ha 한국전기전자재료학회 1999 전기전자재료 Vol.12 No.2

연부조직결손의 재건을 위한 전외측 대퇴부 피판술의 유용성

이충훈,조재윤,정덕환,이재훈,Lee, Chung-Hoon,Jo, Jae-Yun,Chung, Duke-Whan,Lee, Jae-Hoon 대한미세수술학회 2005 Archives of reconstructive microsurgery Vol.14 No.2

Purpose: To present our experience and design modification of an anterolateral thigh flap in soft tissue reconstruction. Materials and Methods: Between April of 2004 and May of 2005, 26 anterolateral thigh flaps were used in 26 patients. There were 22 males and 4 females between 23 and 60 years (mean, 40years). The mean follow-up period was 11($4{\sim}18$) months. All cases were a cutaneous flap. Twenty-two were musculocutaneous perforator flaps(85%) and 4 were septocutaneous perforator flaps(15%). Four flaps were used as a sensate flap. While the donor sites were closed directly in 14 cases(54%), 12 cases(46%) underwent skin grafting of the donor site. During the flap design, a triangular skin design was added to a vascular anastomosis site in 14(54%) patients and used as a roof of the tunnel. The healing period of the skin graft between those performed above the fascia and above the muscle were compared. Results: The average size of the flaps was $16{\times}9(11-20{\times}7-12)\;cm$. The overall flap success rate was 96%. Complications encountered were infection in 4 cases, and marginal skin necrosis in 1 case. The healing period was delayed with the infection in 3 of the 6 cases involving a skin graft over the fascia. All 14 cases with the triangular skin design survived, but there was 1 flap failure and 1 marginal necrosis in 12 cases without a triangular skin design. Conclusions: It may be better to undergo a skin graft above the muscle than above the fascia in covering a donor site defect, and to use a triangular skin design in order to prevent vascular insufficiency. An anterolateral thigh flap is a versatile flap for a soft tissue reconstruction because its thickness and volume can be adjusted to the extent of the defect with minimal donor site morbidity.

유튜브 낚시성 콘텐츠의 주요 구성요소 분석

이서우 ( Seo-woo Lee ),조미정 ( Mi-jeong Jo ),채은비 ( Eun-bi Chae ),김해인 ( Hae-in Kim ) 한국정보처리학회 2022 한국정보처리학회 학술대회논문집 Vol.29 No.2

본 연구에서는 낚시성 콘텐츠의 주요 구성 요소인 썸네일과 제목을 MLKit와 TF-IDF를 이용하여 분석하고 이를 딥러닝 Sentence BERT 모델에 적용하였다. 이를 활용하여 추후낚시성 콘텐츠를 걸러내는 알고리즘을 개발 예정이다.

골육종

이한구(Han Koo Lee),이상훈(Sang Hoon Lee),이창섭(Chang Seop Lee),이충훈(Chung Hoon Lee) 대한정형외과학회 1995 대한정형외과학회지 Vol.30 No.2

중복등기의 효력과 등기부취득시효

이충훈(Choong Hoon Lee) 중앙법학회 2007 中央法學 Vol.9 No.3

Duplicated registration refers to the case when an identica1 rea1 estate was registered more than twice. It should not take place, but in reality there are many duplicated registration of rea1 estate as far as a real estate is concerned and a plenty of case law to deal with it. It is high1y debated among scholars which registration out of duplicated ones is valid and change of the precedent is witnessed. The current Korean Supreme Court takes on the so-called, ``procedural eclecticism,`` which means that the latter registration is invalid unless the former is not originally void. This approach is based on principle of one registration form per one rea1 estate pursuant to section 15 of Registration of Rea1 Estate Act. However, the principle mere1y means that additiona1 registration can not be carried out if one registration form was fi1led out for one rea1 estate. As a result when the registration sheet was filled out twice for one rea1 estate, we do not need to infer that the 1atter registration becomes invalid unless the former is void. What is most important in determining the validity of the duplicated registration is to comply with ``substantive law`` approach, which argues that the only registration identica1 to substantive 1egal re1ationship is valid. As far as acquisitive prescription by register is concerned, the Court he1d that invalid, duplicated registration can be its subject-matter because it is limited to the registration which does not violate the principle of one registration form per one real estate. But the Court`s view is problematic. It is desirable for us to, in principle, interprete that the duplicated registration is subject to acquisitive prescription by register.

패턴인식을 이용한 MPEG 비디오 스트림상에서의 장면전환검출

이충훈(Choong-Hoon Lee),이흥규(Heung-Kyu Lee) 한국정보과학회 1998 한국정보과학회 학술발표논문집 Vol.25 No.1B

최근 멀티미디어의 발달로 많은 동영상데이타가 생겨나게 되었고, 주문형 비디오 시스템과 같은 멀티미디어 시스템도 개발되고 있는 추세이다. 따라서, 동영상데이타를 효율적으로 저장, 관리할 필요가 있는데, 동영상 데이타를 데이타 베이스에 저장하려면 장면 전환의 검출이 필요하게 된다. 본 논문에서는 장면 전환의 검출시에 기존의 임계점을 이용하여 결정하는 방법과 달리, 패턴인식기의 일종인 퍼셉트론을 이용하여 장면전환을 검출하는 방법을 제안한다. MPEG으로 압축된 데이타에서 DC영상만을 추출하여, 프레임간 차이값을 결정하고, 구해진 차이값을 이용하여 퍼셉트론을 학습시키고 학습된 퍼셉트론을 이용하여 장면 전환을 검출하는 방법을 제안한다. 일반 영상과 빠른 움직임을 가지는 영상등 다양한 데이타를 사용한 실험을 통하여 제안한 방법이 임계점을 이용하여 장면전환을 검출하는 방법보다 효과적임을 보인다.

사물인터넷(Internet of Things)을 이용하여 체결한 계약의 법적 효과

이충훈 ( Lee Choong Hoon ) 중앙대학교 문화미디어엔터테인먼트법연구소 2019 문화.미디어.엔터테인먼트 법 Vol.13 No.1

사물인터넷을 이용하여 계약의 체결이 가능해진 상황에서 사물인터넷을 통해 계약이 체결될 경우 그 의사표시의 주체는 누구이고 그 의사표시의 효과는 누구에게 귀속되어야 하는가의 문제가 제기된다. 컴퓨터시스템을 사용하여 계약을 체결하는 경우 초기에는 컴퓨터시스템을 인간의 의사표시의 도구로 파악하였다. 그러나 과학기술의 발달로 인간이 직접 전자문서를 작성하는 것이 아니라 인간이 미리 프로그래밍한 내용을 바탕으로 컴퓨터시스템이 인간의 개입 없이 전자문서를 작성하여 계약을 체결하는 것이 가능해진 세상이 되었다. 이러한 컴퓨터시스템을 저자는 자동화된 컴퓨터시스템이라 명명하고자 하다. 자동화된 컴퓨터시스템을 이용하여 계약을 체결할 수 있게 됨에 따라 컴퓨터시스템을 인간의 도구로 보는 것이 타당한지에 대한 논의가 타당한지에 대한 논의가 진행 중이다. 일부의 견해는 자동화된 컴퓨터시스템에 의하여 의사표시를 한 경우에는 기존 민법상의 의사표시론으로는 설명이 불가능하므로 특별법의 제정 등을 통해 새로운 시각에서 접근해야 한다고 주장하기도 한다. 특히 자동화된 컴퓨터시스템에 대리인의 지위를 부여해야 한다는 주장도 제기되고 있다. 그러나 자동화된 컴퓨터시스템의 경우 인간이 미리 결정해 놓은 내용을 바탕으로 미리 프로그래밍한 내용에 따라 의사표시를 하는 경우이므로 인간의 개입이 충분히 가능하다는 입장에서 이를 인간의 의사표시의 도구로 파악하는 것이 타당하다고 생각된다. 기존의 의사표시 이론으로 모든 상황을 설명할 수 있기 때문이다. 현행 민법상 의사표시의 취소가 문제될 수 있는바, 이에 대하여 케이스별로 착오로 인한 취소가능성을 검토하였다. 컴퓨터시스템의 사용으로 인간은 많은 편익을 누리고 있다. 컴퓨터시스템을 사용하여 편익을 누리고 있다면, 컴퓨터시스템을 사용하여 발생될 수 있는 불이익도 역시 컴퓨터 시스템을 사용하는 자가 부담해야 할 것이다. 이것이 공평의 원칙에 따른 법 해석이라고 생각한다. If a contract is made through the Internet of Things in a situation where a contract may be made using the Internet of Things, the question of who is the subject of the intention and who should be attributed to the effect of the intention is raised. In an early stage, when a contract is made using a computer system, the computer system was deemed as a tool of human intention. Article 7 of the FRAMEWORK ACT ON ELECTRONIC DOCUMENTS AND TRANSACTIONS, enacted in 1999, considers the computer system as a human tool and provides that “an expression of intent included in an electronic document sent by a computer program or by other electronic means developed to send or receive electronic documents automatically shall be deemed sent by an originator.” It is thought that because, in using automated computer systems, the systems represent user’s intents based on preset program, and because human intervention is fully possible, the expression of intents by computer systems should be considered human’s expression of intents as a human tool. With the use of a computer systems, humans enjoy many benefits. If the benefits are derived from using a computer systems, the disadvantages that may arise from using the systems will also be borne by the person using the systems. This is an reasonable interpretation of the law based on the principle of fairness.