Design of a robust controller for rollover prevention with active suspension and differential braking

임성진 대한기계학회 2012 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.26 No.1

This paper presents a method to design a robust controller for rollover prevention. Several types of controllers for rollover prevention have been proposed in such a way to minimize the lateral acceleration and the roll angle. The rollover prevention capability of these controllers can be enhanced if the controlled vehicle system is robust to the variation of the height of the center of gravity (C.G.) and the speed of the vehicle. With this idea, a robust controller is designed with linear quadratic static output feedback and parameter sensitivity reduction scheme. Differential braking and an active suspension system are adopted as actuators that generate yaw and roll moments,respectively. The proposed method is shown to be effective in preventing rollover through simulations on the nonlinear multi-body dynamic simulation software, CarSim®.

Cervical Lymphadenitis Caused by Group D Non-typhoidal Salmonella Associated with Concomitant Lymphoma

임성진,조선영,김정옥,정두련,백경란,송재훈,박경선,이남용,김석진,강철인 대한감염학회 2013 Infection and Chemotherapy Vol.45 No.2

Non-typhoidal Salmonella species are important foodborne pathogens that can cause gastroenteritis, bacteremia, and subsequent focal infections. Non-typhoidal salmonellosis is problematic, particularly in immunocompromised hosts. Any anatomical site can be affected by this pathogen via hematogenous seeding and may develop local infections. However, cervical lymphadenitis caused by non-typhoidal Salmonella species is rarely reported. Herein, we have reported a case of cervical lymphadenitis caused by group D non-typhoidal Salmonella associated with lymphoma.

Quantitative Analysis of Cinnamaldehyde, Cinnamylalcohol and Salicylaldehyde in Commercial Biopesticides Containing Cinnamon Extract Using Gas Chromatography - Flame Ionization Detector

임성진,이지혜,김진효,최근형,조남준,박병준 한국환경농학회 2014 한국환경농학회지 Vol.33 No.3

BACKGROUND: In an environment-friendly agriculture,plant extracts have been perceived as alternatives ofsynthetic pesticides. The Environment-friendly AgriculturePromotion Act of Korea has approved cinnamon extract asa matter for the production of commercial biopesticides. Thirteen commercial biopesticides containing cinnamonextract have been marketed locally. However, the analyticalmethod for the quality control of these biopesticidescontaining cinnamon extract has not been studied. METHODS AND RESULTS: Cartridge clean-up methodfor the determination of cinnamaldehyde, cinnamylalcoholand salicylaldehyde in biopesticides containing cinnamonextract was developed and validated by gas chromatography(GC). The clean-up method was optimized with HLB SPEcartridges for the bioactive substance in biopesticidescontaining cinnamon extract, and the eluate was analyzedby GC. The developed method was validated, and the LOQand recovery rates of cinnamaldehyde, cinnamylalcoholand salicylaldehyde were 0.139, 0.067 and 0.062 mg L-1 and84.2, 86.5 and 82.1%, respectively. The contents ofcinnamaldehyde, cinnamylalcohol and salicylaldehydewere analyzed using the developed method in the 13commercial biopesticides. Results showed 0.06-17.37%,<LOQ-0.01% and <LOQ, respectively. CONCLUSION: This method would contribute tomanufacturers producing biopesticides and the qualitycontrol of biopesticides containing cinnamon extract.

에너지정책관련 적정기술의 지속가능성 분석

임성진 한국자치행정학회 2013 한국자치행정학보 Vol.27 No.1

Appropriate technology is recently receiving a great deal of attention for bringing back humanity to today's scientific technology. It is a resource saving and energy efficient distributed technology which uses the most appropriate resources for the relevant region. Thus it is also considered as an environmentally friendly and grassroots democratic initiative. This study is designed to show that appropriate technology is not only a welfare technology for the poor in underdeveloped countries but also a future oriented technology which enables our local communities to achieve sustainable transition. Understanding and implementing appropriate technology as an integrated concept of welfare promotion and sustainable innovation is a wise and the most cost-effective way for us to embark on the new paradigm of future society which is represented by "Third Industrial Revolution", "Natural Capitalism" and "Blue Economy". Therefore, the Korean government should change its perception of appropriate technology only as technology for helping poor people in underdeveloped countries and reorient its technology policy towards enhancing development of appropriate technology as a method to establish a decentralized society. 저개발국의 소외된 주민들을 위해 개발된 적정기술이 근래 과학기술의 인본주의적 속성을 회복시켜주는 계기로서 주목을 받고 있다. 이 논문은 적정기술이 소외된 지역주민의 복지를 위한 기술의 의미를 넘어 지속가능한 사회 변화를 향한 미래형 기술의 성격을 함께 지니고 있음을 밝히기 위해 지속가능성의 개별 요소, 적정기술 및 제품, 그리고 지속가능 이론들이 구체적으로 어떻게 상호 연관되어 있는지를 분석하기 위한 목적으로 작성되었다. 적정기술을 이처럼 복지와 지속가능한 혁신을 통합한 개념으로 이해하고 정책에 적극 활용한다면 그것이 바로 우리 사회가 3차 산업혁명, 자연자본주의, 블루이코노미 등으로 표현되는 미래사회 패러다임에 가장 적은 비용으로 들어설 수 있는 효과적인 정책방안이 될 것이다. 따라서 정부도 이제는 적정기술이 후진국을 원조하기 위한 단순한 기술이라는 인식에서 벗어나 지속가능한 분산형 사회로의 전환을 위한 해결책으로 적정기술을 발전시키고 육성하기 위한 정책 전환을 서둘러야한다.

UNIFIED CHASSIS CONTROL WITH ELECTRONIC STABILITY CONTROL AND ACTIVE FRONT STEERING FOR UNDER-STEER PREVENTION

임성진 한국자동차공학회 2015 International journal of automotive technology Vol.16 No.5

This paper presents an unified chassis control (UCC) with electronic stability control (ESC) and active front steering (AFS) for under-steer prevention. Even if the previously proposed UCC gives good performance using AFS, there are still chances to generate severe under-steer situation. To cope with the under-steer situation caused by AFS, it is necessary to limit the use of AFS. For this purpose, new optimum yaw moment distribution scheme is proposed. Through simulation on vehicle simulation software, CarSim®, the proposed method is shown to be effective for under-steer prevention.

EU의 기후변화정책과 정책결정과정의 특성: 배출권거래제와 한국에의 시사점을 중심으로

임성진 한국동북아학회 2009 한국동북아논총 Vol.14 No.4

The EU, taking the lead on fighting the climate change, has been continuously strengthening measures for further reduction of Greenhouse gas emissions even after the first commitment period of Kyoto Protocol was over. They already have set a goal of 30~40% reduction in Greenhouse gas emissions by 2020 compared with 1990 levels, yet EU is planning to raise their target to a higher level in case other countries should take similar measures. The EU also has set a good example for other countries with their accumulated experience in the climate protection policy such as having the world's largest emissions trading market. The renewable energy development and transition to a green energy system that are currently taking place on a large scale especially in Germany, have important implications for Korea in terms of deciding the future direction of its energy and climate policy. An analysis of decision making process regarding EU's climate policy shows that the role of supernational institutions in decision making has been strengthened rapidly. A clear example for this tendency is the fact that the European Commission has been gaining more influence on making decisions considering the emission allocation while individual member states of EU have been losing it. As a result of this change, it is expected that EU's climate change policy will be reinforced further as time passes. 기후변화문제에 주도적인 유럽연합(EU)은 교토의정서에 따른 1차 감축기간 이후에도 기후보호대책을 지속적으로 강구하면서 온실가스감축조처를 강화시켜나가고 있다. 이미 2020년까지 1990년 대비 30∼40%의 온실가스감축 목표를 수립했는데 다른 국가들이 상응한 조처를 취할 경우 이 목표치를 상향조정할 계획이다. EU는 또한 세계에서 가장 큰 배출권거래시장을 보유하고 있는 등 기후보호정책 수단에 있어서도 다양한 정책적 경험을 축적하고 있어 세계 각국의 기후변화정책에 본보기가 되고 있다. 특히 독일과 같은 나라에서 일고 있는 대대적인 재생에너지의 발전과 녹색에너지체제전환은 한국이 나아가야할 에너지정책과 기후변화정책수립에 많은 시사점을 주고 있다. EU의 기후변화정책 결정과정을 분석할 때 정책결정권이 공동체차원의 초국가적 방향으로 빠르게 이동하고 있다. 이러한 경향은 EU기후변화정책의 핵심요소인 ETS의 배출량할당 결정권이 회원국에서 집행위원회로 이전되는 현상에서 확인할 수 있으며, 이에 따라 EU의 기후정책이 시간이 흐를수록 더욱 강화되는 결과를 가져올 것으로 예상된다.

사과 및 배 과수원의 토양 및 과실 중 잔류성유기염소계 농약류 잔류량 조사

임성진,박정훤,노진호,이민호,윤효인,최근형,류송희,유혜진,박병준 한국환경농학회 2019 한국환경농학회지 Vol.38 No.2

BACKGROUND: Residual organochlorine pesticides (OCPs) are designated as persistent organic pollutants (POPs) by Stockholm Convention because they bioaccumulate through the food web, and pose a risk of causing adverse effect to human health and the environment. Apple and pear is economic crop in agriculture, and its cultivation area and yield has been increased. Therefore, we tried to investigate the OCPs residue in apple and pear orchard soils and fruits. METHODS AND RESULTS: Extraction and clean‐up method were developed using the modified QuEChERS method for residual organochlorine pesticides (ROCPs) in apple and pear orchard soil and fruits. Recovery and limit of quantitation (LOQ) of ROCPs in soil and fruits were 75.4‐101.4 and 76.9‐93.4%, 0.03‐0.21 and 0.6‐1.2 μg/kg, respectively. Detected ROCPs in apple and pear orchard soil was 2,4‐ DDT, 4,4‐DDD, 4,4‐DDE, 4,4‐DDT, and endosulfan sulfate, the residues were 2.2, 1.9‐48.0, 1.3‐84.1, 90.6‐863.1, and 11.3‐239.0 μg/kg, respectively. But five pesticides in all fruit samples were not detected. CONCLUSION: These results showed that ROCPs residues in apple and pear orchard soil had no effect on safety of agricultural products.

자연중심 환경이론으로서의 블루이코노미 - 이론 및 에너지기술혁신사레 연구 -

임성진 한국자치행정학회 2015 한국자치행정학보 Vol.29 No.4

갈수록 심각해지고 있는 환경위기는 기존의 환경이론과 문제접근방식이 갖는 한계에 그 원인이 있다는 반성과 함께 근래 지역중심의 자연의 원리를 모방하는 자연중심 환경이론이 새로이 주목을 받고 있다. 이 연구는 자연중심이론의 한 분야로 과학기술계를 중심으로 논의가 진행 중인 블루이코노미의 이론과 기술혁신사례를 분석함으로써, 이에 관한 정책학 연구의 길을 열고자 하는 목적에서 이루어졌다. 블루이코노미는 자연의 완벽한 순환시스템을 산업사회에 적용함으로써 현대 산업사회가 직면한 생태적 한계를 가장 효율적으로 극복하려는 이론이다. 그리고 녹색경제에서도 넘어서지 못한 성장과 보존간의 갈등을 조화로운 자연계의 원리를 이용해 근본적으로 해결하고자 하는 혁신이론이다. 본 연구가 제시한 바이오에너지 사례분석은 블루이코노미 기술혁신이 시장, 정책, 사회의 혁신과 긴밀하게 상호 영향을 주고받으며 혁신시스템을 지속적으로 발전시켜나갈 막대한 잠재력을 지니고 있다는 사실을 보여준다. 아울러 정책이나 시장의 혁신이 충분하지 않은 조건 하에서도 지역사회의 비용과 접근성 측면에서 발생하는 이점을 바탕으로 주민 주도의 사회혁신을 통해 기술혁신시스템을 완성시켜 나갈 수 있다. 블루이코노미는 기존의 패러다임에 대한 근본적인 변화를 요구하는 이론으로, 이를 위해 앞으로 극복해야 할 장애요인에 대한 지속적인 연구와 정책적 노력이 필요하다. Based on the recognition that the worsening environmental crisis is attributable to the limits in the current environmental theories and traditional ways of dealing with the problems, nature-oriented environmental theories, which try to imitate nature, is attracting public attention these days. This study aims at opening up a new policy study of Blue Economy by analysing the theories and technological innovation cases of Blue Economy. Blue Economy adopts the perfect circulation system of nature to overcome the ecological problems of current industrial society in a most effective way. (Furthermore, it tries to find a fundamental solution against the contradiction between preservation and growth using natural principles. The case study of Bioenergy offered in this paper will also show that the technological innovation in Blue Economy has a great potential to improve its innovation system continually through interplay with the innovation of the market, policy and the society. In addition, even in an immature market innovational circumstances Blue Economy can pursue completion of the technological innovation system due to the advantages in expenses and accessibility. Blue Economy asks for a fundamental change of the traditional paradigm; thus, a continuous study to find out the obstructions and efforts to make effective policy on that purpose are needed to be pursued.

獨逸 新原電政策의 背景과 意味

임성진 호남정치학회 1998 호남정치학회보 Vol.10 No.-

Phytic Acid-Doped Cross-linked Polyaniline Nanofibers for Electrochemical Supercapacitor Electrode Applications

임성진,김형진,신구,정후영,홍원기,권경중,홍영준 한국물리학회 2019 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.74 No.2

Electrochemical energy storage characteristics of chlorine- and phytic acid-doped polyaniline nanobers (Cl- and Ph-PAni NFs), which were synthesized via radical polymerization in a hy- drochloric acid and a Ph solution, respectively, were comparatively investigated. The Ph-PAni NFs showed a specic capacitance of 227 F g1, which was two times higher than the value of 105 F g1 for Cl-PAni NFs at 30 A g1, due to the enhanced electrical conductivity caused by Ph doping. Moreover, the Ph-PAni NFs presented superior supercapacitor electrode performances in terms of charge-discharge cycle life, specic power, and electrochemical impedance. Diverse spectroscopic analyses revealed that the Ph doping contributed to formation of crosslinks between PAni back- bones, which eventually provided many eective electrical conducting paths in the NFs. Thus, the high conductivity is responsible for the high electrochemical activity of Ph-PAni NFs. This ap- proach to increase the electrochemical performances is expected to be applied to other conducting polymeric supercapacitor electrodes for more practical device applications.