정오표 : 화합물 합성반응 중 Fridel - Crafts Acylation 공정에서의 폭주반응 위험성평가

이광호,김원성,전진우,주영종,박교식,Lee, Kwangho,Kim, Wonsung,Jun, Jinwoo,Joo, Youngjong,Park, Kyoshik 한국안전학회 2021 한국안전학회지 Vol.36 No.5

수중 환경에서 고분자 전해질 연료전지(PEMFC) 공급용 수소 생산을 위한 가압 디젤 개질시스템에 관한 연구

이광호,한광우,배중면,Lee, Kwangho,Han, Gwangwoo,Bae, Joongmyeon 한국군사과학기술학회 2017 한국군사과학기술학회지 Vol.20 No.4

Fuel cells have been spotlighted in the world for being highly efficient and environmentally friendly. A hydrogen which is the fuel of fuel cell can be obtained from a number of sources. Hydrogen source for operating the polymer electrolyte membrane fuel cell(PEMFC) in the current underwater environment, such as a submarine and unmanned underwater vehicles are currently from the metal hydride cylinder. However, metal hydride has many limitations for using hydrogen carrier, such as large volume, long charging time, limited storage capacity. To solve these problems, we suggest diesel reformer for hydrogen supply source. Diesel fuel has many advantages, such as high hydrogen storage density, easy to transport and also well-infra structure. However, conventional diesel reforming system for PEMFC requires a large volume and complex CO removal system for lowering the CO level to less than 10 ppm. In addition, because the preferential oxidation(PROX) reaction is the strong exothermic reaction, cooling load is required. By changing this PROX reactor to hydrogen separation membrane, the problem from PROX reactor can be solved. This is because hydrogen separation membranes are small and permeable to pure hydrogen. In this study, we conducted the pressurized diesel reforming and water-gas shift reaction experiment for the hydrogen separation membrane application. Then, the hydrogen permeation experiments were performed using a Pd alloy membrane for the reformate gas.

화합물 합성반응 중 Fridel - Crafts Acylation 공정에서의 폭주반응 위험성평가

이광호,김원성,전진우,주영종,박교식,Lee, Kwangho,Kim, Wonsung,Jun, Jinwoo,Joo, Youngjong,Park, Kyoshik 한국안전학회 2021 한국안전학회지 Vol.36 No.3

Heat is generated during the synthesis and mixing process of chemical compounds due to a change in activation energy during the reaction. A runaway reaction occurs when sufficient heat is not removed during the heat control process within a reactor, rapidly increasing the temperature, reaction speed, and rate of heat generation inside the reactor. A risk assessment was executed using an RC-1 (Reaction Calorimeter) during Friedel-Crafts acylation. Friedel-Crafts acylation runs the risk of rapid heat generation during Active Pharmaceutical Ingredient (API) manufacturing; it was used to confirm the risk of a runaway reaction at each synthesis stage and during the mixing process. This study used experimental data to develop a safety efficiency improvement plan to control the risks of runaway and other exothermic reactions, which was implemented at the production site of a chemical plant.

A 48 Gb/s PAM4 receiver with Baud-rate phasedetector for multi-level signal modulation in 40 nmCMOS

이광호(Kwangho Lee) 대한전자공학회 2023 대한전자공학회 학술대회 Vol.2023 No.6

By adding user interface to the usual router, an improved functional router is implemented in this paper. The proposed router is developed based on the SA1110 processor, and the system contains 1 ethernet port, 2 PCMCIA slots, and 1 serial communication port. The Emdedded Linux is adopted as an operating system, and application programs are implemented by using QT/Embedded.

Small Active Command Design for High Density DRAMs

Kwangho Lee(이광호),Jongmin Lee(이종민) 한국컴퓨터정보학회 2019 韓國컴퓨터情報學會論文誌 Vol.24 No.11

본 논문에서는 DRAM으로 전송되는 커맨드 버스의 전력 소모량을 감소시킬 수 있는 Small Active Command 기법을 제안한다. 이를 위해, DRAM으로 전달되는 주소 중 가장 큰 크기를 차지하는 Row 주소를 포함하고 다중패킷으로 구성된 ACTIVE 커맨드를 대상으로 한다. 제안된 Small Active Command 기법은 자주 참조되는 Row 주소를 Hot 페이지로 식별하고 메모리 컨트롤러와 DRAM에 적재된 작은 캐시(테이블)의 인덱스 번호를 Row 주소를 대신하여 단일 패킷으로 전달한다. 제안된 기법에서는 인덱스 번호 전달과 캐시 동기화 관리를 위해 기존 DRAM커맨드의 사용하지 않는 비트를 활용한 I-ACTIVE와 I-PRECHARGE 커맨드를 추가하였다. 시뮬레이션을 이용한 실험 결과 제안된 방식은 Close-page 정책과 Open-page 정책에서 각각 평균적으로 20%, 8.1%의 커맨드 버스 전력 소모량을 감소시켰다. In this paper, we propose a Small Active Command scheme which reduces the power consumption of the command bus to DRAM. To do this, we target the ACTIVE command, which consists of multiple packets, containing the row address that occupies the largest size among the addresses delivered to the DRAM. The proposed scheme identifies frequently referenced row addresses as Hot pages first, and delivers index numbers of small caches (tables) located in the memory controller and DRAM. I-ACTIVE and I-PRECHARGE commands using unused bits of existing DRAM commands are added for index number transfer and cache synchronization management. Experimental results show that the proposed method reduces the command bus power consumption by 20% and 8.1% on average in the close-page and open-page policies, respectively.

Null-subject of Mongolian

Kwangho Lee(이광호) 호남대학교 인문사회과학연구소 1999 인문사회과학연구 Vol.6 No.-

몽고어에는 의무적인 주어 동사 일치가 없다. 주어 동사간에 수의 일치가 이루어지는 경우도 있으나 수의적인 것이다. 몽고어의 복문에서는 주절의 명사가 종속절의 주어와 공지표를 가지고 종속절의 주어를 성분통어할 경우에 종속절의 주어는 탈락될 수 있다. 종속절의 생략된 주어 자리는 주절에 있는 가장 인접한 선행어에 의하여 통제된다. 종속절의 생략된 주어 자리를 통제하는 인접한 명사가 주절에 없는 경우에는 종속절의 생략된 주어 자리는 주절에 있는 하나 이상의 명사에 의하여 통제될 수 있다. 담화 맥락에서 선행문에 있는 명사와 공지표를 지니는 명사가 있는 경우에도 주어가 생략될 수 있다.

체육철학 : 골퍼의 신체의식 변화과정에 대한 현장체험 연구

이광호(KwangHo-Lee),윤여탁(YeotakYoon) 한국체육학회 2003 한국체육학회지 Vol.42 No.6

The purpose of this study was to explore and understand the golfer’s alterative processing of body consciousness on golf training in which golfers would experience the variable consciousness and belief etc.The study of human consciousness demands of qualitative research paradigm because human consciousness is not countable as well as emphatic on the process of interpretation and reinterpretation constantly from the perspective of researcher. So this research used the qualitative methodology which revealed golfer’s inner conscious in life of golf training. For this study, 5 amateur-golfers being professional golfer were selected as the research participants. Data collection included mainly participation observation and in-depth interview about 2-years.The results of this study are as follows :The flows of golfer’s consciousness in the process of golf training were the consciousness of imitation, creativity, the identification of body, the formation of self-confidence, transcendence, lived self-space, and de-tenacity.In conclusion, golfer experienced alterative consciousness that is processing of interpretation and comes true constantly. Specially, the various consciousness world is created by golfer’s awareness of moving and meaning of their peculiar experience world. Also, they made no doubt of these experiences of knowledge.

음성 스트리밍 서비스 음질 개선 및 노이즈 제거를 위한 ASRNNoise 모델 개발

이광호(KwangHo Lee),제정륭(JungRyung Je),이호욱(HoWook Lee),오동빈(Dongpin Oh),이호용(Hoyong Lee),추동원(DongWon Choo),강석우(SeokWoo Kang),송길태(Giltae Song) 한국정보과학회 2018 한국정보과학회 학술발표논문집 Vol.2018 No.12

핸들링 테스트 프로시져의 다이나믹 시뮬레이션

이광호(KwangHo Lee) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-

To perform vehicle dynamic simulations of handling test procedures, a suitable vehicle computer model was developed and various test procedures were considered for use with the simulation model. Details of handling test procedures are well known and predicting the results by means of the simulation is quite acceptable. First, the simulation of simple handling procedures is performed and the model is verified. This model is used to perform the computer simulation of a severe handling test procedure or rollover test procedure which is developed for the evaluation of the vehicle's rollover performance. Difficulties are encountered in the case of severe handling conditions. When a vehicle runs at high speed with high lateral acceleration, the details of the physical situation are changed. The reasons for this were studied to find the way to simulate the severe handling case with large angle, large camber angle and high lateral acceleration. ADAMS was used to perform the vehicle handling analysis.<br/>

장애인표준사업장 발달장애 근로자의 직업성공 영향요인

이광호 ( Kwangho Lee ),강성률 ( Sunglyul Kang ) 사단법인 아시아문화학술원 2021 인문사회 21 Vol.12 No.4

본 연구는 장애인표준사업장에서 근무하는 발달장애 근로자가 직업에서 성공하고 안정적으로 직업을 유지하기 위한 관련 요인들을 밝히는 데 목적이 있다. 연구결과, 먼저, 발달장애 근로자의 기초능력은 사회적-대인관계 기술, 직업성공에 유의한 정(+)적 영향이, 매개변수인 장애인에 대한 태도와 사회적-대인관계 기술은 종속변수인 발달장애 근로자의 직업성공에 유의한 정(+)적 영향을 미치는 것으로 나타났다. 이러한 연구결과는 발달장애 근로자의 직업성공에 대한 실증적 근거와 개입전략을 제시하였으며, 발달장애 근로자의 직업성공을 위한 교육 프로그램 개발과 서비스에 대해 유용한 정보를 제공해 줄 수 있을 것으로 기대된다. The purpose of this study is to reveal the relevant factors for the developmentally disabled workers working in standard workplaces for the disabled to be successful in their job and to maintain a stable job. As a result of the study, first, the basic ability of workers with developmental disabilities had a significant positive effect on social-interpersonal relationship skills and job success, and the parameters of attitude toward people with disabilities and social-interpersonal relationship skills were the dependent variables, developmental disability. It was found to have a significant positive (+) effect on the job success of workers. The results of this study presented empirical evidence and intervention strategies for the vocational success of workers with developmental disabilities, and are expected to provide useful information on the development of educational programs and services for the vocational success of workers with developmental disabilities.