한국인 얼굴의 3차원 형상해석을 통한 반면형 호흡보호구용 신개념 3D test panel 개발

김강윤(Kangyoon Kim),김현욱(Hyunwook Kim),이중(Joong Lee),이응대(Eungdae Lee),김동욱(DongWook Kim) 한국법과학회 2005 한국법과학회 학술대회 Vol.2005 No.1

실린더 압력을 이용한 디젤엔진의 실시간 IMEP 추정

김도화(Dohwa Kim),오병걸(Byoungul Oh),오승석(Seungsuk Ok),이강윤(Kangyoon Lee),선우명호(Myoungho Sunwoo) 한국자동차공학회 2009 한국 자동차공학회논문집 Vol.17 No.2

모토트론 RCP 플랫폼을 활용한 전자식 스로틀 제어 사례 연구

김민중(Minjung Kim),허재호(Jaeho Hur),이강윤(Kangyoon Lee) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11

Electronic Control Unit (ECU) increasingly requires precise and complex control algorithms and fierce competition in the automotive market, while the reduction of development time and costs. Ways to meet these needs, Rapid-Prototyping was advent of techniques, has been gradually expanding. To apply Production of these technologies ECU (Engine Control Unit) continue the consistent development of a platform .The platform must be configured properly. MotoTron RCP platform is composed in the form of a hierarchical structure, and Automatic Code Generation techniques. The algorithm designer can easily create a production-level code. MotoTron’s various tools help users to develop the test algorithm and validation phases. We use technology of MotoTron to control electronic throttle Body system. This paper describes a case study to MotoTron RCP platform, and introduces development process through Electronic Throttle Body control. In order to shorten the development cycle, RCP is a technique which reduces the development time and money.

0.18 ㎛ CMOS 공정을 이용한 저 전력 1 Ms/s 12-bit 2 단계 저항 열 방식 DAC

유명섭,박형구,김홍진,이동수,이성호,이강윤,Yoo, MyungSeob,Park, HyungGu,Kim, HongJim,Lee, DongSoo,Lee, SungHo,Lee, KangYoon 대한전자공학회 2013 전자공학회논문지 Vol.50 No.5

본 논문은 무선 센서분야를 위한 1MS/s rate의 저 전력 12-bit 2단계 저항 열 DAC를 제시하고 있다. 2단계 저항 열 구조를 채택함으로써 복잡함을 줄이고, 소비 전력을 최소화 하고 변환속도를 증가 시킬 수 있었다. 이 칩은 $0.18{\mu}m$ CMOS 공정에서 제작 되었으며, Die 면적은 $0.76{\mu}m{\times}0.56{\mu}m$ 이다. 1.8V의 공급 전압으로부터 측정된 전력 소비는 1.8 mW 이다. 샘플링 주파수가 1MHz 이하에서 측정된 동적 동작범위(Spurious-Free Dynamic Range: SFDR)은 70dB 이다. A low-power 12-bit resistor string DAC for wireless sensor applications is presented. Two-step approach reduces complexity, minimizes power consumption and area, and increases speed. This chip is fabricated in 0.18-${\mu}m$ CMOS and the die area is $0.76mm{\times}0.56mm$. The measured power consumption is 1.8mW from the supply voltage of 1.8V. Measured SFDR(Spurious-Free Dynamic Range) is 70dB when the sampling frequency is less than 1 MHz.

0.18 μm CMOS 공정을 이용한 저 전력 1 Ms/s 12-bit 2 단계 저항 열 방식 DAC

유명섭(MyungSeob Yoo),박형구(HyungGu Park),김홍진(HongJim Kim),이동수(DongSoo Lee),이성호(SungHo Lee),이강윤(KangYoon Lee) 대한전자공학회 2013 전자공학회논문지 Vol.50 No.5

본 논문은 무선 센서분야를 위한 1MS/s rate의 저 전력 12-bit 2단계 저항 열 DAC를 제시하고 있다. 2단계 저항 열 구조를 채택함으로써 복잡함을 줄이고, 소비 전력을 최소화 하고 변환속도를 증가 시킬 수 있었다. 이 칩은 0.18 μm CMOS 공정에서 제작 되었으며, Die 면적은 0.76 μm x 0.56 μm 이다. 1.8V의 공급 전압으로부터 측정된 전력 소비는 1.8 mW 이다. 샘플링 주파수가 1MHz 이하에서 측정된 동적 동작범위(Spurious-Free Dynamic Range: SFDR)은 70dB 이다. A low-power 12-bit resistor string DAC for wireless sensor applications is presented. Two-step approach reduces complexity, minimizes power consumption and area, and increases speed. This chip is fabricated in 0.18-μm CMOS and the die area is 0.76 mm x 0.56 mm. The measured power consumption is 1.8mW from the supply voltage of 1.8V. Measured SFDR(Spurious-Free Dynamic Range) is 70dB when the sampling frequency is less than 1 MHz.

호흡보호구 디자인을 위한 삼차원 얼굴인식 및 측정에 관한 고찰

김현욱,김강윤 한국산업위생학회 2001 한국산업보건학회지 Vol.11 No.2

This article reviewed studies on the 3D face recognition and anthropometric facial analysis to design suitable respirators for individuals. 3D facial antoropometric data have not been reported in Korea yet. With 3D facial data, it is possible to design and to manufacture respirators having more effective respirator-face seal and thus providing more comfortable wearing than donning of those respirators designed using 1 and 2-dimensional data. Also 3D data could be used for respirator fit-testing and selecting suitable respirator type and size by computer simulation with out several steps of fit-test to each individual worker.

활성탄관에 포집된 1,3-부타디엔의 탈착효율 개선에 관한 연구

최호춘,김강윤,정규철 한국산업위생학회 2002 한국산업보건학회지 Vol.12 No.1

This study was performed to improve the desorption efficiency and to measure storage stability for 1.3-butadiene collected on two activated charcoal tubes. This result will be used for measurement and evaluation of airborne 1,3-butadiene concentration for 1,3-butadiene exposed workers. The results were as follows: 1. Using carbon disulfide(CS_2) and methylene chloride(Mc) as desorbing solvents, the desorption efficiencies of 1,3-butadiene spiked on untreated activated charcoal tube(100㎎/50㎎) were 8.99±2.57% and 53.86±10.55%, respectively. 2. Using MC, chloroform, 1% butanol in CS2, 1% methanol(MeOH)in MC and 3% MeOH in MC, the desorption efficiencies of 1,3-butadiene spiked on untreated activated charcoal bube(400㎎, 200㎎, separately) were 66.50±8.65%, 40.07±2.46%, 47.97±3.91%, 85.91±1.64%, and 89.33±3.87%, respectively. 3. Using CS2, MC, MeOH/MC(1/99), MeOH/MC(3/97), and Butanol/CS2(1/99), the desorption efficiencies of 1,3-butadiene spiked on 4-tert-butylcatecho(TBC) treated activated charcoal tube(100㎎/50㎎) were 79.91±7.24%, 81.73±10.07%, 85.89±5.07%, 80.37±2.49% and 97.24±4.98%, respectively. 4. On untreated activated charcoal tube(400㎎ and 200㎎, separately) in freezer(-20℃), the recovery rates of storage stability were 79.53% after 1 week, 79.49% after 2 weeks, and 78.71% after 3 weeks. In refrigerator(≤4℃), the recovery rate of storage stability were 79.80 % after 1 week, 73.23% after 2 weeks and 74.31% after 3 weeks. 5. Coefficient o fvariation of 1,3-butadiene was 5.9, 1.03 and 5.12 using MeOH/MC(1/99), MeOH/MC(3/97), and Butanol/CS2(1/99) on TBC treated activated charcoal tube(100㎎/50㎎). 6. On TBC treated activated charcoal tube(100㎎/50㎎) in freezer(-20℃), the recovery rates of storage stability were 90.07% after 1 week, 81.42% after 2 weeks, and 80.37% after 3 weeks. In refrigerator(≤4℃), the recovery rates of storage stability were 73.29% after 1 week, 63.56% after 2 weeks, and 58.88% after 3 weeks. This study suggested that an optimum adsorbent and a desorbing solvent for 1,3-butadiene samples were TBC treated activated charcoal tube(100㎎/50㎎) and 1 % butanol in CS_2. For the storage stability, the samples should be stored in freezer(-20℃) and be analyzed within 1 week.

용접 근로자의 혈액 및 요중 망간 농도

현대우,안선희,김강윤,최호춘 大韓産業醫學會 1998 대한직업환경의학회지 Vol.10 No.4

Blood and urine samples were taken from 447 welders exposed to manganese containing welding fumes and 127 office workers not exposed to welding fumes as a control. The air samples were analyzed by flame atomic absorption spectrophotometer(Varian 30A, Australia), and blood and urine samples were analyzed by flameless atomic absorption spectrophotometer(Z-8100, Hitachi, Japan). Data were evaluated in accordance with type of industry, smoking habits, and work duration. The results obtained were as follows: 1. The limit of detection(LOD) levels of manganese in blood and urine were 0.11㎍/100㎖ and 0.14㎍/ι, respectively. Our results of manganese concentration were shown within ±2 standard deviation which was the upper and lower warning limit(UWL or LWL) on quality control chart. 2. The airborne concentrations of manganese in welding workplaces were 0.067㎎/㎥ showing differences by type of industry; 0.017㎎/㎥ in automobile assembly and manufacturing industries, 0.084㎎/㎥ in steel heavy industries and 0.180㎎/㎥ in shipyards. 3. The blood manganese concentrations showed differences by type of industry showing the highest values of 1.70㎍/100㎖ in shipyards, 1.24㎍/100㎖ in automobile assembly and manufacturing industries and 1.111㎍/100㎖ in steel heavy industries. Urinary manganese concentration corrected by urinary creatinine concentrations was 0.34㎍/g creatinine in automobile assembly and manufacturing industries, 0.43㎍/g creatinine in steel heavy industries and 0.48㎍/g creatinine in shipyards. There were no difference urinary manganese concentrations by type of industry. 4. The overall blood manganese concentration was 1.26㎍/100㎖, and urinary manganese concentration was 0.35㎍/g creatinine in welders. In contrast to these values, blood and urinary manganese concentrations were lower in control group showing 0.73㎍/100㎖,, and 0.28㎍/g creatinine, respectively. 5. Smoking habits did not seem to affect on blood and urinary manganese concentrations both in welders and office workers. 6. Blood manganese concentrations were significantly higher in welder who had worked longer than 10 years than in welder who had worked less than 10 years. 7. The blood manganese concentrations were significantly correlated to airborne manganese concentrations(r=0.318, n=64), work duration(r=0.425, n=538), and cumulative exposure indices(CEI) (r=0.354, n=64).