Jong Han Lim

Gachon University

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Kee Joo Kim

Tongmyong University

Young-Suk Lee

Byung-Ik Choi

Korea Institute of Machinery and Materials

Jee Na Lee

Chungnam National University

Chung Song Huh

Inha University

Sunyoup Lee

Korea Institute of Machinery and Materials

Cheolwoong Park

Korea Institute of Machinery and Materials

Daehee Kang

Seoul National University

Hye Ree Lee

Jun Kyu Yoon

Gachon University

Cooperative Institutions

Korea Institute of Machinery and Materials

Inha University

Seoul National University

Yonsei University

Jeonbuk National University

Inha University Hospital

Korea Advanced Institute of Science and Technology

Seoul National University Hospital

Chungnam National University

Pohang University of Science and Technology

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Comparison of Treatment Outcomes of Infected Nonunion of the Tibia by Ilizarov Fixator according to Location of Nonunion and Reconstruction of Soft Tissue Defect

Journal of the Korean Fracture Society (2010)

Soo Kyung Lee Jung Ryul Kim Jong Han Lim Jun Mo Lee

Ilizarov Technique

10.12671/jkfs.2010.23.1.57

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PM Reduction Characteristics of Gasoline Direct Injection Engines with Different Types of GPFs

Transactions of the Korean Society of Mechanical Engineers B (2015)

Ui Hyung Yi Cheolwoong Park Sunyoup Lee Jong Han Lim

세계적인 배출가스 규제의 강화와 함께 화석 연료의 매장량 감소와 유가 상승은 새로운 엔진 기술 개발을 촉진시켰다. 가솔린 직접 분사(GDI; Gasoline Direct Injection) 엔진은 연료를 직접 연소실에 공급하고 정밀한 연소제어를 통해 공연비가 희박한 혼합 상태에서도 연소가 가능하게 하였는데, 이러한 방식은 기존 포트 분사 엔진보다 연비와 출력을 모두 향상시킬 수 있다. 하지만 GDI엔진은 디젤 엔진의 경우와 마찬가지로 soot 발생률이 높아짐에 따라 입자상 물질의 배출이 증대되는 문제를 안고 있다. 이러한 문제를 해소하고자 본 연구에서는 가솔린 입자상 물질 필터(GPF; Gasoline Particulate Filter)를 개발하여 입자상 물질의 배출정도를 저감시키고자 하였다. 필터의 설계 효율에 따라 3가지의 Metal foam 필터와 단일 Metal fiber 필터를 실험에 적용하여 PM과 PN의 저감률을 비교하였다.

Gasoline direct injection

10.3795/ksme-b.2015.39.4.351

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Influence of smoking on blood cadmium concentration in university students.

PubMed (2004)

Joo Youn Shin Jong Han Lim Sin Goo Park Jee Na Lee Mi Jang

This study was performed to examine the influence of smoking on the blood cadmium concentration in university students.The study included 300 university students. A questionnaire interview was used to collect data. The urine cotinine and blood cadmium levels were measured as biological exposure indices. The data were analyzed using t-tests ANOVA and ANCOVA.The median value of blood cadmium concentration was equal in both males and females (0.8microgram/liter). This level was relatively low in comparison with the reference value suggested by WHO (2001). ANCOVA showed that smoking related variables, urine cotinine and smoking amount, were significantly associated with the blood cadmium level (P=0.004, 0.015). However, the values with regard to traffic related air pollution were not significantly associated with the blood cadmium level.Smoking is an important source of nonoccupational cadmium exposure in young people. The Blood cadmium level is at least 10% higher in active smokers than in passive or nonsmokers. The level of urine cotinine can be used as an indicator of non-occupational exposure of respirable cadmium due to smoking, as there is a good correlation bestween smoking amount and the urine cotinine level.

Cotinine

CADMIUM EXPOSURE

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Automobile Traffic Accidents Prediction Model Using by Artificial Neural Networks

Communications in computer and information science (2012)

Yong Gyu Jung Jong Han Lim

Multilayer perceptron

Perceptron

Traffic accident

10.1007/978-3-642-32692-9_89

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Design of Driveline Test Bench for Noise and Vibration Harshness Improvement of Automotive Chassis Components System

Advanced structured materials (2012)

Kee Joo Kim Si-Tae Won Kyung Shik Kim Byung-Ik Choi Jun-Hyub Park

Powertrain

Subframe

Harshness

Chassis

Shaker

Test bench

Torsional Vibration

Multibody system

10.1007/978-3-642-32295-2_1

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Deformation and Residual Stress of Automotive Frame by Welding

Transactions of Korean Society of Automotive Engineers (2011)

Tae Won Park Kee Joo Kim Chang Pyung Han Young-Suk Lee Jong Han Lim

The frame for automotive assembly can be deformed and remained on the residual stress due to high temperature thermal attacks when in welding. The frame deformation can be made to problems when in assembly with body and the residual stress can affect the negative effect on durability performance of the automobile. In order to analyze the frame deformation, the simplified test frame which had the similar shape (form) of the real automotive frame was fabricated. The contactless optical 3D scanner was used for the shape difference measurement of the frame between before and after the welding. The FE-model of the test frame was composed and the heat transfer and thermal stress simulation were performed. The simulated results were compared with the measured results for the reference of the frame design. The deformation shape of the frame by simulation was in good agreement with that by the experimental measurement.

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A comparative study on family function between the psychiatric families and the normal families.

Gajeong yihag hoeji (1991)

Kyu Rae Lee Jong Han Lim Mi Kyung Oh Hye Ree Lee Bang Bu Youn

Normal family

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