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특이적 근 조정 운동이 단거리 여자육상선수의 자세안정화 및 하지분절 움직임에 미치는 영향
강민철(Kang, Min-Cheol),전덕형(Jeon, Deok-Hyeong),박정민(Park, Jeong-Min) 한국체육과학회 2021 한국체육과학회지 Vol.30 No.1
This study was to investigate the effects of special strength coordination training posture stability and lower segment movements in female sprinters. In order to achieve the purpose of this study, female sprinters at c and k local, were selected at random and allocated 12 female sprinters each for the Non Exercise group(NEG), Deficient Exercise group(DEG), Over Exercise group(OEG) and measured posture stability and lower segment movements before and after the experiment. The special strength coordination training program for 12 weeks. The results of this study were as follows: First, As a result of analyzing the change of posture stability according to special strength coordination training, OEG was significantly improved compared to NEG and DEG. Second, As a result of analyzing the change of lower segment movements according to special strength coordination training, OEG was significantly improved compared to NEG and DEG. As conclusions, this study confirmed that the special strength coordination training on posture stability and lower segment movements in female sprinters. However, there is a need for more specific exercise programs to be developed for the continual improvement of athletic performance in athletics along with further studies to confirm the physiological benefits of those programs.
강민철 ( Min Chul Kang ),박영도 ( Young Do Park ),이규석 ( Kyu Suk Lee ),정상립 ( Sang Lip Chung ) 대한피부과학회 2008 대한피부과학회지 Vol.46 No.8
Dematomyositis is an idiopathic inflammatory myopathy characterized by specific skin manifestations and progressive symmetric proximal muscle weakness. Importantly, dermatomyositis is occasionally associated with the internal malignant tumor, which is clearly correlated with poor prognosis. We report two cases of dermatomyositis, showing characteristic skin lesions, that associated with small cell lung cancer in a 64-year old man and gallbladder cancer in a 54-year old man, respectively. On laboratory findings muscle enzymes and liver function markers were elevated prominently. We tried to treat these patients with systemic corticosteroid and chemotherapy. The patient with small cell lung cancer died of SAH due to head trauma and in the case of the patient with gallbladder cancer, the symptoms of the muscle weakness and the skin lesions are getting better and worse repeatedly fluctuating and regular periodic follow up is required. (Korean J Dermatol 2008;46(8):1069~1074)
강민철 ( Min Chul Kang ),김성애 ( Sung Ae Kim ),이규석 ( Kyu Suk Lee ),조재위 ( Jae We Cho ) 대한피부과학회 2009 대한피부과학회지 Vol.47 No.12
Fluorescein has been used for decades in ophthalmology for fluorescence angiography and it is the only fluorophore routinely used in experimental dermatology for in vivo study of the skin. It absorbs blue light, with peak absorption and excitation wavelengths between 465 and 490 nm and fluoresces at yellow-green wavelengths of 520∼530 nm. The most common side effects are nausea and vomiting, and other adverse events such as a vasovagal response, cardiac or respiratory effects, neurologic manifestations or allergy, including anaphylaxis, were also reported. But a photosensitive reaction to fluorescein is very rare. We report here on a case of photoallergic dermatitis due to fluorescein after fluorescence angiography. (Korean J Dermatol 2009;47(12):1368∼1370)
경구 Cyclosporin과 혈소판 풍부 혈장 병합요법을 적용한 괴저고름피부증 치험
강민철 ( Min Chul Kang ),김성애 ( Sung Ae Kim ),이규석 ( Kyu Suk Lee ),조재위 ( Jae We Cho ) 대한피부과학회 2010 대한피부과학회지 Vol.48 No.4
Pyoderma gangrenosum is an uncommon, chronic, neutrophilic ulcerative condition of uncertain pathophysiology. Although the main therapy is the systemic administration of high doses of steroid therapy, many other therapeutic modalities have been widely used. Combination therapy with systemic corticosteroids and cyclosporin has proven effective in many cases. However, prolonged therapy is associated with significant side effects. Platelet rich plasma (PRP) has many growth factors such as PDGF (platelet derived growth factor), VEGF (Vascular endothelial growth factor) and FGF (fibroblast growth factor). Recently, PRP has been gaining attention in the treatment of recalcitrant cutaneous ulcers. An 82-year-old woman presented with recurrent painful ulcers on the dorsal surface of both hands. She had been treated with systemic steroids, cyclosporine, minocylclin, triamcinolone intradermal injection and PRP. Thus, we report a case of pyoderma gangrenosum that was successfully treated with combination therapy of oral cyclosporine and PRP. (Korean J Dermatol 2010;48(4):313~317)
금융 지표와 파라미터 최적화를 통한 로보어드바이저 전략 도출 사례
강민철(Mincheal Kang),임규건(Gyoo Gun Lim) 한국IT서비스학회 2020 한국IT서비스학회지 Vol.19 No.2
Facing the 4th Industrial Revolution era, researches on artificial intelligence have become active and attempts have been made to apply machine learning in various fields. In the field of finance, Robo Advisor service, which analyze the market, make investment decisions and allocate assets instead of people, are rapidly expanding. The stock price prediction using the machine learning that has been carried out to date is mainly based on the prediction of the market index such as KOSPI, and utilizes technical data that is fundamental index or price derivative index using financial statement. However, most researches have proceeded without any explicit verification of the prediction rate of the learning data. In this study, we conducted an experiment to determine the degree of market prediction ability of basic indicators, technical indicators, and system risk indicators (AR) used in stock price prediction. First, we set the core parameters for each financial indicator and define the objective function reflecting the return and volatility. Then, an experiment was performed to extract the sample from the distribution of each parameter by the Markov chain Monte Carlo (MCMC) method and to find the optimum value to maximize the objective function. Since Robo Advisor is a commodity that trades financial instruments such as stocks and funds, it can not be utilized only by forecasting the market index. The sample for this experiment is data of 17 years of 1,500 stocks that have been listed in Korea for more than 5 years after listing. As a result of the experiment, it was possible to establish a meaningful trading strategy that exceeds the market return. This study can be utilized as a basis for the development of Robo Advisor products in that it includes a large proportion of listed stocks in Korea, rather than an experiment on a single index, and verifies market predictability of various financial indicators.
강민철 ( Min Cheol Kang ),곽수환 ( Soo Hwan Kwak ),김창수 ( Chang Soo Kim ) 한국정보시스템학회 2010 情報시스템硏究 Vol.19 No.4
The ubiquitous computing & technology is to make passive IT machinery as the smart-object to solve the problems of information management. These ubiquitous devices can be a concierge of humans lives. In addition, the ubiquitous computing & technology added with Pro-Active processing technology is the intellectual automatic process capacity that probably enhance quality of human`s life. Although the social influencing power of ubiquitous computing technology is so critical, research on the social impact of ubiquitous has been studied insufficiently. And, we also need the countermeasures to protect the societies from the side effect of the ubiquitous computing technology. The purpose of this research is to minimize the loss which comes from the new ubiquitous society, by presenting the technological and systematic alternatives and by researching the various side effects. This research suggests the proper alternatives by reviewing and by researching the adverse effects of the ubiquitous computing technology.