• 제목/요약/키워드: Song function

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차세대 고속전철에 적용할 IT 및 스마트센서 기술의 타당성 검토에 관한 연구 (Engineering Feasibility of IT and Smart Sensor Technology Applications for the Next Generation High Speed Train)

  • 장덕진;강송회;송달호
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2009년도 춘계학술대회 논문집 특별세미나,특별/일반세션
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    • pp.547-556
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    • 2009
  • In this paper, we tried to find the engineering feasibility of the component functions of the seven selected application technologies which are going to be installed on the next generation high speed train as the IT and smart sensor application technologies. The component functions of the seven applications, including the "Emergency or reminder notification", were identified and analyzed. In order to justify the feasibility of applications development, effect analysis and sufficiency analysis were performed. In effect analysis, how each function has an effect on safety, convenience, and efficiency of the passengers and attendants was evaluated. In sufficiency analysis, the importance and implementability of each function as a component was evaluated. The feasibility analysis was focused on the technical aspects of the functions. The following work will be the settlement of the final applications that are going to be designed and implemented. This will be done by studying the strategic feasibility in relation to the service or business of the high speed train.

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N-Input NAND Gate에서 입력조건에 따른 Voltage Transfer Function에 관한 연구 (A Study of The Voltage Transfer Function Dependent On Input Conditions For An N-Input NAND Gate)

  • 김인모;송상헌;김수원
    • 대한전기학회논문지:전기물성ㆍ응용부문C
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    • 제53권10호
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    • pp.510-514
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    • 2004
  • In this paper, we analytically examine the voltage transfer function dependent on input conditions for an N-Input NAND Gate. The logic threshold voltage, defined as a voltage at which the input and the output voltage become equal, changes as the input condition changes for a static NAND Gate. The logic threshold voltage has the highest value when all the N-inputs undergo transitions and it has the lowest value when only the last input connected to the last NMOS to ground, makes a transition. This logic threshold voltage difference increases as the number of inputs increases. Therefore, in order to provide a near symmetric voltage transfer function, a multistage N-Input Gate consisting of 2-Input Logic Gates is desirable over a conventional N-Input Gate.

A Study on a One-step Pairwise GM-estimator in Linear Models

  • Song, Moon-Sup;Kim, Jin-Ho
    • Journal of the Korean Statistical Society
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    • 제26권1호
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    • pp.1-22
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    • 1997
  • In the linear regression model $y_{i}$ = .alpha. $x_{i}$ $^{T}$ .beta. + .epsilon.$_{i}$ , i = 1,2,...,n, the weighted pairwise absolute deviation (WPAD) estimator was defined by minimizing the dispersion function D (.beta.) = .sum..sum.$_{{i $w_{{ij}}$$\mid$ $r_{j}$ (.beta.) $r_{i}$ (.beta.)$\mid$, where $r_{i}$ (.beta.)'s are residuals and $w_{{ij}}$'s are weights. This estimator can achive bounded total influence with positive breakdown by choice of weights $w_{{ij}}$. In this paper, we consider a more general type of dispersion function than that of D(.beta.) and propose a pairwise GM-estimator based on the dispersion function. Under some regularity conditions, the proposed estimator has a bounded influence function, a high breakdown point, and asymptotically a normal distribution. Results of a small-sample Monte Carlo study are also presented. presented.

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Electroglottograph를 이용한 후두기능 상태판별 시스템의 개발 (Development of the Laryngeal Function Identification System Using the Electroglottograph)

  • 김종명;송철규;이명호
    • 대한의용생체공학회:의공학회지
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    • 제14권4호
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    • pp.387-396
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    • 1993
  • In this paper, a laryngeal function identification system based-on the EGG signal is proposed as the decision basis whether the laryngeal function is normal or abnormal. The normal EGG signal is approved an autoregressive model which has the optimal order of 9. It can be analized by determining the transfer function. But it is not meaningful that the determi- nation is made using the transfer function of an autoregressive model on the abnormal EGG signal. The power spectral analysis was applied to discriminate the normal or abnormal cases. The SNR of the EGG signal was enhanced by the optimal position of electrodes.

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광역 건강가정지원센터의 기능 및 건강가정지원센터 평가 기능에 대한 연구 (The Study on the functions of Metro Healthy-Families-Center and of the Evaluation for Healthy-families-Center)

  • 송혜림;라휘문
    • 가족자원경영과 정책
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    • 제13권3호
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    • pp.1-16
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    • 2009
  • The purpose of this study were to establish the concrete function of Metro Healthy-Families-Center and to find out the function of evaluation for Healthy-Families-Center. For this study the data was collected from the 10 interviewees. The findings were: 1) the major functions of Metro Healthy-Families-Center are the connection between the Central and Basic Center of Healthy Families, support for the Basic Center. 2) the evaluation for Metro and Basic Center is referred as the function of Central Center of Healthy Families. 3) the evaluation-support function of Metro Healthy-Families Center is emphasized. To the further related studies the development of programs corresponding to the functions is suggested.

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수중재활운동이 뇌졸중 환자의 신체기능과 폐기능에 미치는 영향 (The Effect of Aquatic Exercise on the Improvement of Physical and Pulmonary Function After Stroke)

  • 송주민;김수민
    • The Journal of Korean Physical Therapy
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    • 제21권2호
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    • pp.15-22
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    • 2009
  • Purpose: This study examined the effect of aquatic exercise on the improvement in physical and pulmonary function after stroke. Methods: Fourteen candidates, who had experienced stroke, were enrolled in this study. The program was carried out three times weekly, 1 hour per session and for 10 consecutive weeks. At pre-treatment and post-treatment, the subjects were tested with a 10 m and 100 m timed gait test, a timed get up and go test, a functional reach test, the difference in thoracic girth at inspiration and expiration, and breaths per minute. The forced vital capacity (FVC) and forced expiratory volume in one second (FEV1) were measured using a spirometer. Results: After ten weekends of an aquatic exercise program, the subjects showed a significant difference in all the test results except for the FEV1 (p<0.05). Conclusion: Intervention with this aquatic exercise program can improve the physical and pulmonary function in people who have had a stroke.

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능동전력필터 기능을 갖는 전기자동차용 10kW급 준급속 배터리 충전기 (The 10kW Rapid Battery Charger for Electric Vehicle with Active Power Filter Function)

  • 최성촌;송상훈;김도윤;김영렬;원충연
    • 조명전기설비학회논문지
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    • 제28권5호
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    • pp.122-133
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    • 2014
  • This paper deals with the rapid charger which is the mid-type between the slow and fast chargers in the aspect of charging time. In its functions, it can perform the Active Power Filter(APF) function without changing the topology besides the charging function. In addition, to perform the charging and APF function, this paper proposes the mode selection algorithm. The operation of the charger that has APF function and the mode selection algorithm are verified by the simulation and experiment.

고려중기 혜조국사(慧照國師)의 대북송(對北宋) 교류(交流)와 전륜장(轉輪藏) 도입 (The Interchange with the Northern Song and the Introduction of Jeonryunjang by Haejokuksa in the Early Koryo Dynasty)

  • 이경미
    • 건축역사연구
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    • 제16권6호
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    • pp.101-120
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    • 2007
  • This paper aims at studying on the medium of cultural interchange regarding who did and how to introduced the new trend of architecture during the period of Koryo Dynasty. Before the era of Koryo Dynasty, Kyungjang(Sutra Pitaka, 經藏) was mainly centered in Kyeongnu with a substantial function of storage. In the early Koryo Dynasty, however, Daejangjeon(大藏殿), which was spatialized for worship, began to appear. Normally, fixed walls were installed and the Sutras were enshrined inside Daejangjeon, while Jeonryunjang (revolving wheel sutras), a type of rational bookshelf, was introduced, and a new trend became developed in Kyungjang construction. Jeonryunjang(revolving wheel sutras, 轉輪藏) is a dharma instrument with a rotational function so that one revolution gives an effect of reading the enshrined Sutra one time, and began to be created actively in the period of the Northern Song. It is considered that the introduction of Jeonryunjang(revolving wheel sutras) to Daejangjeon was resulted from Haejokuksa(慧照國師) Damjin(曇眞) who visited the Kangnam areas in the Northern Song at that time. The Kangjeol areas in the Northern Song, where Damjin concentratively itinerated three times, were the place in which Jeonryunjang was created in many temples. Since Damjin, historical materials and excavated data regarding constructing Jeonryunjang have been discovered in the Buddhist temples, which are related to his pupils and dharma lineage. The only existing Jeonryunjang of Yongmusa Temple in Korea is the one that Joeung Daesunsa, who succeeded to the dharma lineage of Haesokuksa, promoted, and supports strongly such introduction of Jeonryunjang by Haesokuksa.

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