• Title/Summary/Keyword: F-Measure

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The Relationship between Korean People's Social Capital and Multicultural Acceptance (한국인의 사회자본과 다문화 수용성 관계)

  • Lee, Hyoung-Ha
    • Journal of the Korea Society of Computer and Information
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    • v.19 no.11
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    • pp.193-202
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    • 2014
  • This study was attempted in order to measure the level of Korean people's social capital and their multicultural acceptance, and to explain the relationship between the sub-factors of social capital(trust, reciprocity, and participation) and the multicultural acceptance. Furthermore, this study aimed to examine the relative influence of the sub-factors of social capital on the multicultural acceptance and to suggest which social capitals should be reinforced. Data on 'social capital' and 'multicultural acceptance' used in this study were obtained from the data of the 8th Korean General Social Survey (KGSS) in 2010. The results of analyses are as follows. First, social capital was lower with increase in age (F=28.18, p<.001), and higher with increase in academic qualification (F=15.49, p<.001), and total household income (F=8.85, p<.001). Second, the multicultural acceptance was higher in men (t=9.98, p<01) and lower with increase in age (F=27.29, p<.001), and higher with increase in academic qualification (F=28.99, p<.001), and total household income (F=11.92, p<.001). Third, among the three social capital factors influencing the multicultural acceptance, 'trust' was found to have a significant positive (+) effect. Based on these results were suggested various strategies for enhancing Korean people's multicultural acceptance.

Development and validation of Speech Range Profile task (발화범위 프로파일 과제 개발 및 타당성 검증)

  • Kim, Jaeock;Lee, Seung Jin
    • Phonetics and Speech Sciences
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    • v.11 no.3
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    • pp.77-87
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    • 2019
  • The study aimed to develop Speech Range Profile (SRP) and to examine and validate its clinical application. Forty-five participants without voice disorders aged 18-29 years were compared using SRP and Voice Range Profile (VRP). The authors developed the "Fire!" paragraph as a SRP task compromising 14 sentences including all Korean spoken phonemes and sentence types. To compare SRP and VRP results, the participants read the paragraph (reading) and counted from 21 to 30 (counting) as a part of SRP tasks, and produced a vowel /a/ from low to high frequencies (gliding) and a shortened form of the VRP as a part of VRP tasks. $F0_{max}$, $F0_{min}$, $F0_{range}$, $I_{max}$, $I_{min}$, and $I_{range}$ for each task were measured and compared, showing that $F0_{max}$, $F0_{min}$, $F0_{range}$, $I_{max}$, and $I_{range}$ were not different between reading and gliding. $I_{min}$, had the lowest value in counting. It is concluded that the newly developed SRP task, reading the "Fire" paragraph, can yield a maximum phonation range similar to that found by VRP. Therefore, it is expected that voice evaluation can be effectively performed in a relatively short time by applying SRP with the "Fire" paragraph, a functional utterance task, in place of VRP, which may be difficult to measure long term or in cases of severe voice disorders.

Stochastic optimum design criterion of added viscous dampers for buildings seismic protection

  • Marano, Giuseppe Carlo;Trentadue, Francesco;Greco, Rita
    • Structural Engineering and Mechanics
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    • v.25 no.1
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    • pp.21-37
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    • 2007
  • In this study a stochastic approach for linear viscous dampers design adopted for seismic protection of buildings is developed. Devices optimal placement into the main structure and their mechanical parameters are attained by means of a reliability-based optimum design criterion, in which an objective function (O.F.) is minimized, subject to a stochastic constraint. The seismic input is modelled by a non stationary modulated Kanai Tajimi filtered stochastic process. Building is represented by means of a plane shear type frame model. The selected criterion for the optimization searches the minimum of the O.F., here assumed to be the cost of the seismic protection, i.e., assumed proportional to the sum of added dampings of each device. The stochastic constraint limits a suitable approximated measure of the structure failure probability, here associated to the maximum interstorey drift crossing over a given threshold limit, related, according with modern Technical Codes, to the required damage control.

Study and Application of the Relationship between Water Content and Sugar Content in Fruit and Vegetables (청과물의 수분과 당도와의 관계 구명 및 응용)

  • 조성인;배영민
    • Journal of Biosystems Engineering
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    • v.20 no.3
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    • pp.299-306
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    • 1995
  • This study was carried to find out relationships between water content and sugar content in fruit and vegetables and present the possibility of estimating sugar content by measuring water content. Water content and sugar content of melons, peaches, and apples were measured. Both F-test and linear regression analysis on the experimental data were done. The regression models were developed and validated. The results were summarized as follow : 1. According to the F-test, the coefficients of determinant were greater than 0.8, and significance probability was less than 0.0001 in each materials. 2. According to the regression analysis of melons, peaches, and apples, the standard errors of calibration(SEC) were 0.67 brix%, 0.82 brix%, and 0.72 brix%, respectively. 3. The standard errors of prediction(SEP) were 0.76 brix%, 1.03 brix%, and 0.77 brix%, respectively. 4. The relationship between sugar content and water content in apple was successfully applied to measure the sugar content from hydrogen NMR spectrum of apple samples.

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GENERALIZED FOURIER-FEYNMAN TRANSFORM AND SEQUENTIAL TRANSFORMS ON FUNCTION SPACE

  • Choi, Jae-Gil;Chang, Seung-Jun
    • Journal of the Korean Mathematical Society
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    • v.49 no.5
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    • pp.1065-1082
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    • 2012
  • In this paper we first investigate the existence of the generalized Fourier-Feynman transform of the functional F given by $$F(x)={\hat{\nu}}((e_1,x)^{\sim},{\ldots},(e_n,x)^{\sim})$$, where $(e,x)^{\sim}$ denotes the Paley-Wiener-Zygmund stochastic integral with $x$ in a very general function space $C_{a,b}[0,T]$ and $\hat{\nu}$ is the Fourier transform of complex measure ${\nu}$ on $B({\mathbb{R}}^n)$ with finite total variation. We then define two sequential transforms. Finally, we establish that the one is to identify the generalized Fourier-Feynman transform and the another transform acts like an inverse generalized Fourier-Feynman transform.

Characteristics of Aging of Ni-Ti Alloy Used for Implant Fabrications(I) (생체주입용 Ni-Ti 합금의 시효특성(I))

  • Cho, Hyung-June;Lee, Jun-Hee;Park, Ki-Ryoung
    • Journal of Biomedical Engineering Research
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    • v.10 no.3
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    • pp.261-268
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    • 1989
  • The characteristics of aging of near-equiatomic Ni-Ti alloy has been studied by the three point bend test and the measurement of Differential Scanning Calorimetry(DSC). The DSC is used to measure precise transformation temperatures and the amount of thermal energy required for the corresponding phase transformation. The effort of hardness on aging treatment in saline solution of $37^{\circ}C$ was higher for the annealed than solution treated specimens. As the testing temperature inc- rease from under $M_f$ to above $A_f$ temperature, the elastic stiffness increased. Almost full recovery can be achieved after bending below Belo outer fiber strain. Total bend recovery decreased gradually as aging time and bend angle is increased.

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Implementation of Magnetic Sensing System Using Spinning Current Method (Spinning Current 방식을 이용한 자기 감지 시스템의 제작)

  • Park, Joon-Hong;Nam, Tae-Chul
    • Proceedings of the KIEE Conference
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    • 1998.11c
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    • pp.773-775
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    • 1998
  • This paper describes the highly sensitive Si Hall magnetic sensing system which can measure the earth magnetic field. Generally, the important parameters in Hall device which degrade the ability of magnetic detection are offset voltage and 1/f noise. The offset voltage and 1/f noise in Hall plates can be reduced by spinning current method. In this paper, we implement the highly sensitive Si Hall magnetic sensing system using spinning current method. As a result, the minimum detectable magnetic field is 0.1G.

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Measurements of Thermal Neutron Spectrum Parameters in the TRIGA Mark II Reactor

  • Yang, Jae-Choon
    • Nuclear Engineering and Technology
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    • v.11 no.1
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    • pp.21-27
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    • 1979
  • The relative reaction rates were measured in the TRIGA Mark II reactor core and analyzed to obtain the neutron spectrum parameters; relative neutron temperature T$^{n}$ and epithermal index (equation omitted) Measurements were made with the central thimble and the F2 position containing the light water. The relative neutron temperature was represented by the activation ratio of Lu-Mn, and the epithermal index was measured by Au-Mn foil activation. The multichannel analyzer was used to measure the relative ${\gamma}$-rays of the detector foils. The results were compared with the calculated values.

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DESIGN OF THE IF DISTRIBUTOR AND V/F CONVERTER FOR RECEIVER SYSTEM (우주전파 수신기를 위한 IF 분배기 및 V/F 컨버터 설계)

  • Kim, Kwang-Dong;Yim, In-Sung;Byun, Do-Young;Song, Min-Gyu
    • Publications of The Korean Astronomical Society
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    • v.22 no.3
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    • pp.83-87
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    • 2007
  • We designed the Intermediate Frequency(IF) distributor for multi beam backend system and manufactured Voltage to Frequency Converter(VFC) to measure the multi-beam receiver performance. Multi beam receiver has 15 channel receivers and can get 15 spectrums at once. The multi beam receiver has more observation efficiency than single beam receiver. We manufactured the 15 IF distributors to distribute IF signal for Autocorrelation spectrometer that is radio signal processor. Also, we manufactured the VF Converter to test the performance measurement of receiver for Korea VLBI Network(KVN) system which is under-construct in Seoul, Ulsan and Jeju. As a result of performance measurement, we could obtain linearity of 99.4% on the input power vs output frequency and measured the operating range of input frequency.

Family Support, Alcohol Consumption and Drinking Motives in Patients with Liver Cirrhosis (간경변증 환자의 가족지지, 음주정도 및 음주동기)

  • Kim, Nam Young;Kim, Ok Soo
    • Korean Journal of Adult Nursing
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    • v.19 no.2
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    • pp.295-304
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    • 2007
  • Purpose: The purpose of this study were to investigate the level of family support, alcohol consumption and drinking motives in patients with liver cirrhosis and to examine the relationships among those variables. Methods: The subjects consisted of 60 patients with liver cirrhosis. Family support scale, Q-F methods and Drinking Motives Questionnaire were used to measure the level of family support, alcohol consumption and drinking motives. Results: The level of family support was 43.62. Prevalence of drinking was 90% and 43.3% were currently heavy drinkers. Alcohol consumption was related to sex and education. There were positive low relationships between the level of enhancement motive, coping motive, social motive, and Q-F Index. Conclusion: Alcohol drinking is a serious health problem in patients with liver cirrhosis. It is necessary to have an educational approach for controlling drinking and family support.

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