• 동의신경정신과학회지
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• 제12권2호
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• pp.135-146
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• 2001

Insomnia is one of the most common symtoms of Neuropsychiatry patients. These are many approaches to treat insomnia, but it is difficult to be resolved completely. Acupuncture and Auricular acupuncture have been used for relief insomnia. But it is not sufficient to compare the effect of Acupuncture treatment and Auricular acupuncture treatment. Thus we investigate the effect of Acupuncture treatment group and Auricular acupuncture treatment group. A clinical analysis was carried out for 40 patients who was treated insomnia with Acupuncture(20 patients) and Auricular acupuncture(20 patients) in Seoul Dong-Seo Oriental Hospital. 1. Total duration of sleeping time showed $1.55{\pm}1.1574$ hours increased in Acupuncture group and $0.925{\pm}1.184$ hours increased in Aricular acupuncture group. especially Acupuncture were much more effective method than Aricular acupuncture. P-value was 0.033 (P <0.05) 2. Delaying time before the onset of sleep showed $0.7375{\pm}0.8940$ hours decreased in Acupuncture group and $0.7969{\pm}1.3298$ hours decreased in Auricular acupuncture group. (P <0.05) 3. The wake times showed $0.9167{\pm}1.7299$ times decreased in Acupuncture group and $1.2308{\pm}1.1658$ times decreased in Auricular acupuncture group in sleep maintenance insomnia. (P <0.05) 4. Change in quality of sleep showed Excellent 30%, Good 50%, Fair 15%, Poor 5% in Acupuncture group and Excellent 20%, Good 45%, Fair 30%, Poor 5% in Aruricular acupuncture group.

• 전자공학회논문지
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• 제49권11호
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• pp.132-138
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• 2012

VANET(Vehicular Ad-hoc Network)을 지원하기 위해 IEEE 802.11p 규격이 표준화 진행중에 있다. 802.11 MAC 프로토콜은 전송률에 관계없이 모든 노드들에 동일한 확률의 채널 획득 기회를 부여하므로, 전송률이 낮은 노드가 상대적으로 채널 점유시간이 길어져서 전송률이 높은 노드도 전송률이 낮은 노드의 전송률로 하향 평준화되는 문제와, 노드가 많아질 경우 충돌 확률이 높아지는 문제가 있다. 본 논문에서 제안하는 알고리듬은 일단 채널을 획득한 단말기가 다른 노드와의 채널획득 경쟁의 우위를 일정 기간 유지하는 알고리듬에, 현재 전송률에 따라 적절히 연속전송 한계값을 정하는 TXOP 개념을 더했다. CW의 폭을 표준보다 더 넓게 설정여 효과적으로 충돌을 회피하면서도 대기시간을 최소화하면서 또한 채널 점유 시간에 따라 연속전송 한계값을 다르게 정하는 방법을 통해 전체 네트워크의 향상을 보이고 있다.

• 전기학회논문지
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• 제58권2호
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• pp.391-398
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• 2009

In this study, we introduce the design methodology of an optimized fuzzy cascade controller with the aid of hierarchical fair competition-based genetic algorithm(HFCGA) for ball & beam system. The ball & beam system consists of servo motor, beam and ball, and remains mutually connected in line in itself. The ball & beam system determines the position of ball through the control of a servo motor. The displacement change the position of ball leads to the change of the angle of the beam which determines the position angle of a servo motor. Consequently the displacement change of the position of the moving ball and its ensuing change of the angle of the beam results in the change of the position angle of a servo motor. We introduce the fuzzy cascade controller scheme which consists of the outer(1st) controller and the inner(2nd) controller as two cascaded fuzzy controllers, and auto-tune the control parameters(scaling factors) of each fuzzy controller using HFCGA. The inner controller controls the position of lever arm which corresponds to the position angle of a servo motor and the outer controller decides the set-point value of the inner controller. HFCGA is a kind of parallel genetic algorithms(PGAs), and helps alleviate the premature convergence being generated in conventional genetic algorithms (GAs). For a detailed comparative analysis from the viewpoint of the performance results and the design methodology, the proposed method for the ball & beam system which is realized by the fuzzy cascade controller based on HFCGA, is presented in comparison with the conventional PD cascade controller based on serial genetic algorithms.

• 한국IT서비스학회지
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• 제20권1호
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• pp.131-143
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• 2021

Commercial transactions, one of the pillars of the capitalist economy, are occurring countless times every day, especially small and medium-sized businesses. However, small and medium-sized enterprises are bound to be the legal underdogs in contracts for commercial transactions and do not receive legal support for contracts for fair and legitimate commercial transactions. When subcontracting contracts are concluded among small and medium-sized enterprises, 58.2% of them do not apply standard contracts and sign contracts that have not undergone legal review. In order to support small and medium-sized enterprises' fair and legitimate contracts, small and medium-sized enterprises can be protected from legal threats if they can reduce the risk of signing contracts by analyzing various risks in the contract and analyzing and informing them of toxic clauses and omitted contracts in advance. We propose a risk prediction model for the machine reading-based legal contract to minimize legal damage to small and medium-sized business owners in the legal blind spots. We have established our own set of legal questions and answers based on the legal data disclosed for the purpose of building a model specialized in legal contracts. Quantitative verification was carried out through indicators such as EM and F1 Score by applying pine tuning and hostile learning to pre-learned machine reading models. The highest F1 score was 87.93, with an EM value of 72.41.

• 한국체육학회지인문사회과학편
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• 제54권3호
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• pp.315-325
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• 2015

본 연구는 생활체육 및 전문체육이 균형 있게 발전하기 위한 체육재정의 확보와 지원의 효율화 방안을 제시하는데 그 목적이 있다. 연구의 방법은 체육재정과 관련된 선행연구를 고찰한 후 문헌자료를 통해 그 실태를 파악하였다. 연구의 내용 및 범위는 첫째, 중앙 및 지방정부 체육부문 예산을 검토하였고 둘째, 지방정부의 재정자립도를 파악하였으며 셋째, 지방정부의 체육부문 예산을 파악하였다. 이상의 고찰을 통해 도출한 결과는 다음과 같다. 첫째, 체육진흥기금 중 수익금 배분의 개선을 통한 체육재정의 추가적 확보가 요구된다. 둘째, 재정자립도를 기준으로 스포츠이벤트 개최 이후에 활용도를 높일 수 있는 충분한 지원이 필요하다. 셋째, 각 단체를 평가할 수 있는 공정한 평가기준을 확립하고 이에 따른 전략적 지원과 체육재정의 확보가 요구된다. 넷째, 각 지역에 대한 충분한 사전조사를 통해 양적 지원을 벗어나 실제 사용가치를 높일 수 있는 질적 지원이 이루어지도록 해야 한다. 다섯째, 체육부문별 지원 규모에 대한 심층 연구를 통하여 다양한 사업에 대한 공정한 분배가 이루어져야 한다.

• 생물정신의학
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• 제19권4호
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• pp.153-158
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• 2012

Understanding of a clinical trial is essential in developing clinical guideline and adopting evidence based practice. In designing and executing clinical trials, following ethical requirements should be considered : social value, scientific validity, fair subject selection, informed consent, favorable risk-benefit ratio, institutional review board, and respect for human subjects. According to the stage of drug development, purpose of trials, accumulated scientific data, clinical trials for drug development are classified as phase 1, 2, 3, and 4. Phases of clinical trials can be overlapped and the judgment of entering into the next phase should be considered highly strategically. In reading, evaluating and interpreting clinical trial reports, various skills and challenges exist. Patient sample composition, trial duration, selection of endpoints, responders and non-responders, placebo effect, patient recruitment, and extrapolation to the real world are the examples of those challenges. Treatment success will come from the well balanced approach of evidence based decision making and consideration of specific single case.

• Computers and Concrete
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• 제19권6호
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• pp.737-744
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• 2017

Geopolymer Concrete is typically proportioned with activator solution leading to moderately high material cost. Such cost can be enduring in high value added applications especially when cost savings can be recognized in terms of reduction in size of the members. Proper material selection and mix proportioning can diminish the material cost. In the present investigation, a total of 27 mixes were arrived considering the mix parameters as liquid-binder ratio, slag content and sodium hydroxide concentration to study the mechanical properties of geopolymer concrete (GPC) mixes such as compressive strength, split tensile strength and flexural strength. The derived statistical Response Surface Methodology is beleaguered to develop cost effective GPC mixes. The estimated responses are not likely to contrast in linear mode with selected variables; a plan was selected to enable the model of any response in a quadratic manner. The results reveals that a fair correlation between the experimental and the predicted strengths.

• 한국산학기술학회:학술대회논문집
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• 한국산학기술학회 2009년도 추계학술발표논문집
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• pp.427-431
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• 2009

취업박람회에서 참관객에게 제공되고 있는 박람회의 서비스품질, 가치, 그리고 만족 등의 이론적 배경을 바탕으로 인과관계를 나타내는 구조적 관계를 분석하였다. 개최 도시의 지각된 품질 요인은 정보의 확신성, 인적서비스, 접근성, 물리적 환경 그리고 관광매력성의 총 5개의 요인으로 총 16개의 항목을 Likert 5점 척도로 측정하였으며, 변수들의 집중 타당도와 판별 타당도를 확보하였다. 분석결과 관광매력성, 물리적환경, 인적서비스, 정보의 확신성 순으로 취업박람회 참가자의 지각된 가치에 영향을 미치는 것으로 나타났다. 이러한 연구결과는 박람회 주최자가 사용자 관점에서 좀 더 효율적으로 행사를 준비함과 동시에 참가 업체의 보다 나은 서비스 지원으로 기업의 가치인식 제고에도 기여할 것으로 기대된다.

• 기술혁신연구
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• 제12권1호
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• pp.219-240
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• 2004

As Shapiro and Varian argue the open approach generates bandwagon effects and facilitates the diffusion of a standard thanks to network externalities. However, the open approach is not linked automatically to economic benefits as suggested by some famous cases as the IBM PC history. On the contrary, the closed approach enables a tight control over a technology and its development, and insures the appropriation of economic benefits. As Shapiro and Varian suggest, a firm can also decide to mix an open approach with tight control over improvement or extentions. Patent pool is to offer fair, reasonable, nondiscriminatory access under a single license to patents that are essential for the use of standards-based or other platform technologies. patent pool offers only one license to everyone, Since each patent is essential, the royalty rate and thus the value is the same whether a licensee uses one or more patents.

• 오토저널
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• 제11권5호
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• pp.65-75
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• 1989

A method for analyzing the heat dissipation rates of automotive radiators has been proposed and also a new model equation of heat transfer rate of louvered fins has been proposed and tested. With the method, the effect of various design parameters on the performance of a radiator has also been studied. The proposed model equation for air-side heat transfer has made fair predictions which agree well with the experiments. Also the design value of heat dissipation rate with various fin pitches and radiator size has a good agreement with the heat dissipation of the commercial automotive radiators. Thus, the method of analyzing the radiator performance proposed in this study might be used to design new automotive radiators.