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김경민,김남희,이정화,윤현서,박혜영,김혜진,Kim, Kyung-Min,Kim, Nam-Hee,Lee, Gung-Hwa,Yoon, Hyun-Seo,Park, Hye-Young,Kim, Hye-Jin 한국치위생학회 2017 한국치위생학회지 Vol.17 No.5
Objectives: The purpose of this study is to look into the health insurance systems and application in Korea and Japan in order to improve elderly people's quality of life. Their quality of life can be improved by upgrading the long term care systems; and extending treatment and prevention. Methods: This study is to examine long term care systems articles through content analysis in the National Health Insurance Service. Data were collected from the printed Internet and analyzed. Results: A part-time dentist system in elderly care facilities has trouble in taking care of old people's oral health due to both lack of time and operational difficulties. It is urgent to arrange dental experts who can permanently stay in care facilities and to build systems which can be managed periodically and continually. Conclusions: As having staff training for the efficiency and using the manpower in care facilities (care workers), it is necessary to solve the unequal medical service in oral health care for the elderly in Korea.
김경민,김민경,이상혁,Kim, Kyung-Min,Kim, Min-Kyoung,Lee, Sang-Hyuk 대한생물정신의학회 2014 생물정신의학 Vol.21 No.4
Anxiety disorders are characterized by dysregulation of neuroendocrine, neurotransmitter and neuroanatomical functions. Substantial advances in research method offered new insights into the neurobiologic mechanisms in anxiety disorders. Advances in molecular biology have enabled illumination of hormone and neurotransmitters that have important roles in anxiety. The neuroanatomic circuits related to anxiety are also being elucidated by improvements in neuroimaging technology such as structural and functional magnetic resonance imaging. This article reviews the research data in relation to the neurobiology underlying fear and pathologic anxiety and discusses their implications for development of biological treatments for anxiety disorders.
김경민,이정구,김경태,백연경,Kim, Kyung Min,Lee, Jung-Goo,Kim, Kyung Tae,Baek, Youn-Kyoung 한국분말야금학회 2019 한국분말재료학회지 (KPMI) Vol.26 No.2
Rare earth magnets are the strongest type of permanent magnets and are integral to the high tech industry, particularly in clean energies, such as electric vehicle motors and wind turbine generators. However, the cost of rare earth materials and the imbalance in supply and demand still remain big problems to solve for permanent magnet related industries. Thus, a magnet with abundant elements and moderate magnetic performance is required to replace rare-earth magnets. Recently, $a^{{\prime}{\prime}}-Fe_{16}N_2$ has attracted considerable attention as a promising candidate for next-generation non-rare-earth permanent magnets due to its gigantic magnetization (3.23 T). Also, metastable $a^{{\prime}{\prime}}-Fe_{16}N_2$ exhibits high tetragonality (c/a = 1.1) by interstitial introduction of N atoms, leading to a high magnetocrystalline anisotropy constant ($K_1=1.0MJ/m^3$). In addition, Fe has a large amount of reserves on the Earth compared to other magnetic materials, leading to low cost of raw materials and manufacturing for industrial production. In this paper, we review the synthetic methods of metastable $a^{{\prime}{\prime}}-Fe_{16}N_2$ with film, powder and bulk form and discuss the approaches to enhance magnetocrystalline anisotropy of $a^{{\prime}{\prime}}-Fe_{16}N_2$. Future research prospects are also offered with patent trends observed thus far.
초기 성 학대 경험이 있는 여성 공황장애 환자의 임상적 특성
김경민,김민경,이강수,최태규,이상혁,Kim, Kyung Min,Kim, Min-Kyoung,Lee, Kang Soo,Choi, Tai Kiu,Lee, Sang-Hyuk 대한생물정신의학회 2016 생물정신의학 Vol.23 No.4
Objectives The objective of this study is to investigate differences of clinical characteristics between a healthy female control group and female panic disorder (PD) patients with early sexual abuse history (PD+S) and without early sexual abuse history (PD-S). Methods We examined data from 83 patients diagnosed with PD and 20 healthy control subjects. We divided the patients with PD into PD+S (32 patients) and PD-S (51 patients) to compare demographic and clinical characteristics. The following instruments were applied: the Stress coping strategies, the Beck Depression Inventory (BDI), the Panic Disorder Severity Scale, the Anxiety Sensitivity Index-Revised (ASI-R), the Albany Panic and Phobia Questionnaire (APPQ) and the NEO-neuroticism. Results Compared to the PD-S, the PD+S group showed higher scores in neuroticism and the APPQ. And, in the PD+S group, the scores of neuroticism were correlated with the ASI-R and APPQ subscale scores and the APPQ total scores were associated with the scores of BDI. Conclusions This study shows that female PD+S patients have higher scores in neuroticism and the APPQ than the PD-S group, and these factors are associated with the panic-related symptoms severity. It emphasizes the need of specific strategies considering the childhood abuse history such as early sexual abuse in clinical approach among patients with PD.
김경민(Kyung Min Kim),홍순흠(Soon-Heum Hong) 한국철도학회 2007 한국철도학회 학술발표대회논문집 Vol.- No.-
This paper considers subway routing problem. Given a schedule of train to be routed by a railway stock, the routing problem determines a sequence of trains while satisfying turnaround time and maintenance restrictions. Generally, the solution of routing problem is generated from set partition formulation solved by column generation method, a typical integer programming approach for train-set. However, we find the characteristics of metropolitan subway which has a simple rail network, a few end stations and 13 departure-arrival patterns. We reflect a turn-around constraint due to spatial limitations has no existence in conventional railroad. Our objective is to minimize the number of daily train-sets. In this paper, we develop two basic techniques that solve the subway routing problem in a reasonable time. In first stage, we formulate the routing problem as a Min-cost-flow problem. Then, in the second stage, we attempt to normalize the distance covered to each routes and reduce the travel distance using our heuristic approach. Applied to the current daily timetable, we could find the subway routings, which is an approximately 14% improvement on the number of train-sets reducing 15% of maximum traveling distance and 8% of the standard deviation.
연구 논문 : 전기화학적 마이크로머시닝 기술을 이용한 균일한 니오븀 표면 에칭 연구
김경민 ( Kyung Min Kim ),유현석 ( Hyeon Seok Yoo ),박지영 ( Ji Young Park ),신소운 ( So Woon Shin ),최진섭 ( Jin Sub Choi ) 한국공업화학회 2014 공업화학 Vol.25 No.1
본 연구에서는 micro-contact printing을 통하여 니오븀 호일 표면 위에 균일한 에칭 pits를 형성하였다. 균일한 보호층을 형성하고자 전해연마의 효과를 확인하였으며, 기존의 O2 플라즈마 공정 없이 손쉽게 균일한 에칭 pits를 형성시킬 수 있는 조건을 확인하였다. 메탄올 혼합 전해질을 사용하여 10 min 동안 에칭을 진행한 결과 니오븀 호일 표면 위에 지름과 간격이 각각 10 μm와 5 μm로 잘 정렬된 에칭 pits를 관찰하였다. We describe the preparation of highly-ordered etching pits on the Nb foil through a micromachining. The effects of electro-chemical polishing on the formation of uniformly-patterned protective epoxy layer was investigated. Unlike the previous proc-ess using O2 plasma, well-ordered etched pits were prepared without any dry processes. As a result, the Nb foil with the well-ordered pits of 10 μm × 5 μm could be obtained by electrochemical etching in methanolic electrolytes for 10 min.
식물의 초경량 조직을 이용한 미토콘드리아의 DNA와 RNA 정제
김경민,임용숙,신동일,설일환,Kim Kyung-Min,Lim Yong-Suk,Shin Dong-Ill,Sul Ill-Whan 한국생명과학회 2006 생명과학회지 Vol.16 No.2
We present a fast and simple protocol for purification of mitochondria, mitochondrial DNA, and RNA from small amounts of tomato leaves. This method uses a high ionic strength medium to isolate mitochondria and extract mitochondrial DNA and RNA from a single preparation and is easily adaptable to other plant species. Mitochondria was confirmed by MitoTracker. The mitochondrial DNA was not contaminated by plastid DNA, was successfully used for PCR. Similarly, the isolated mitochondrial RNA was not contaminated only slightly contaminated (leaves) by plastid RNA. RNA prepared according to our method was acceptable for RT-PCR analysis 본 실험에서는 토마토의 종자를 기내 배양하여 얻어진 1g 이하의 무균 잎 조직을 이용하여 미토콘드리아를 분리 정제하여 MitoTracker를 이용하여 세포생물학적으로 확인하였고, 이들의 mt를 이용하여 미토콘드리아 DNA와 RNA를 추출과 검정을 하였다. 또한 고농도의 이온성을 이용하여 미토콘드리아와 mtDNA 및 mtRNA을 추출할 수 있었으며, 식물의 여러 종류에도 사용되어질 수 있을 것이다. mtDNA는 PCR 분석에 의하여 plastid DNA와 혼재되어 있지 않음을 확인하였다. mtRNA는 RT-PCR 분석을 통하여 plastid RNA와 흔재되어 있지 않음을 확인할 수 있었다.