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Changes in Amylose Content and Alkali Digestibility Value of Rice Grain During Ripening Period (성숙기간중 미입내 Amylose함량과 Alkali 붕괴성의 변이)

  • 음문회;박순직;서학수
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.24 no.3
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    • pp.1-6
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    • 1979
  • Amylose content and alkali digestibility value of rice grain were tested from 10days after flowering up to maturity. Both amylooe content and alkali digestibility value showed slightly lower at earliest stage, but they reached maximum value by 20 days after flowering, and then they maintained the value until maturity. Both amylose content and alkali digestibility value showed negative correlations to air temperature, though they were not significant statistically except in case of amylose content and maximum temperature, which showed significant correlation in some year.

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Improved Exact Inference in Logistic Regression Model

  • Kim, Donguk;Kim, Sooyeon
    • Communications for Statistical Applications and Methods
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    • v.10 no.2
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    • pp.277-289
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    • 2003
  • We propose modified exact inferential methods in logistic regression model. Exact conditional distribution in logistic regression model is often highly discrete, and ordinary exact inference in logistic regression is conservative, because of the discreteness of the distribution. For the exact inference in logistic regression model we utilize the modified P-value. The modified P-value can not exceed the ordinary P-value, so the test of size $\alpha$ based on the modified P-value is less conservative. The modified exact confidence interval maintains at least a fixed confidence level but tends to be much narrower. The approach inverts results of a test with a modified P-value utilizing the test statistic and table probabilities in logistic regression model.

Implementation of Real Time 3 channel Transmission System Using ECG Data Compression Algorithm by Max-Min Slope Update (최대 및 최소 기울기 갱신에 의한 ECG 압축 알고리듬을 이용한 실시간 3채널 전송시스템 구현)

  • 조진호;김명남
    • Journal of Biomedical Engineering Research
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    • v.16 no.3
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    • pp.271-278
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    • 1995
  • An ECG data compression algorithM using max-min slope update is proposed and a real time 3 channel ECG transmission system is implemented using the proposed algorithm. In order to effectively compress ECG data, we compare a threshold value with the max-min slope difference (MMSD) which is updated at each sample values. If this MMSD value is smaller than the threshold value, then the data is compressed. Conversely, when the MMSD value is larger than threshold value, the data is transmitted after storing the value and the length between the data which is beyond previous threshold level. As a result, it can accurately compress both the region of QRS, P, and T wave that has fast-changing and the region of the base line that slope is changing slow. Therefore, it Is possible to enhance the compression rate and the percent roms difference. In addition, because of the simplicity, this algorithm is more suitable for real-time implementation.

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A Study on the Interlaminar Fracture Toughness of Glass Fiber Reinforced Plastic Comosites (GFRP 복합재료의 층간파괴인성치에 관한 연구)

  • 박기호
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.35 no.4
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    • pp.410-420
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    • 1999
  • The value of the mode I interlamina fracture toughness, GIC, is calculated by experimental compliance method, modified compliance method and beam theory. The value of the mode II interlamina fracture toughness, GIC, is evaluated by beam method, theory beam theory and compliance method. This paper describes the effect of load pint displacement rate and speicimen geometries for mode I and II interlaminar fracture toughness of glass fiber reinforced plastic composites by using double cantilever beam (DCB) and end notched flexure (ENF) specimen. For the load point displacement rate of increases whereas the value of 2,6 and 10 mm/min the value of GIC decrease as load point displacement rate increases whereas the value of GIC is found to be no significant effect. The value of GIC decreases as initial crack length increases. The fractured surface of the DCB and ENF samples are examined by scanning electron microscopy (SEM).

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The Effects of Goal-Oriented Value on Financial Management and Financial Satisfaction of Female College Student Consumers (여대생소비자의 목표중심적 가치가 재정관리행동과 재정만족도에 미치는 영향)

  • 홍은실;황덕순
    • Journal of the Korean Home Economics Association
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    • v.40 no.2
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    • pp.175-186
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    • 2002
  • The purpose of this study was to examine the influences of goal-oriented value to the financial management and financial satisfaction of female college students. The samples were selected from 541 female collegians. Data analysed were carried out using SAS package. Statistics used for data analysis was Cronbach'$\alpha$ coefficient, multiple regression, Pearson correlation analysis, and path analysis. The results were summarized as follows : First, resulting from the multiple regression analysis, the goal-oriented value had positive effects to the financial management - planning, implementing, evaluating, and saving - of female collegians. And the goal-oriented value had not indirectly but directly positive effects to the financial satisfaction. Second, the variables that have significant influence on the financial satisfaction were the level of household income, goal-oriented value, implementing, and monthly personal allowance.

A Study on the Level of Perception to Internet Shopping′ Benefit - Risk in Relation to the Internet Searching Value Types of College Student Consumers (대학생소비자의 인터넷탐색가치유형과 인터넷쇼핑에 대한 혜택-위험 지각정도에 관한 연구)

  • 홍은실
    • Journal of the Korean Home Economics Association
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    • v.40 no.2
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    • pp.161-173
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    • 2002
  • This study explored the Internet searching values(utilitarian searching value and hedonic searching value) of college student consumers, typed the Internet searching values to four types, and analysed the level of perception to Internet shopping' benefit-risk according to the Internet searching value types. The subjects were 361 college students. We used Cronbach'$\alpha$, multiple regression, one-way ANOVA, and Scheffe' test as statistical analysis. The results were summarized as follows : 1) According to the Internet searching values, college student consumers were classified into 4 types - high utilitarian/high hedonic type, high utilitarian/low hedonic type, low utilitarian/high hedonic type, and low utilitarian/low hedonic type. 2) Both high utilitarian/high hedonic type and low utilitarian/high hedonic type had high level of perception to Internet shopping' benefit-risk.

The relations between parenting, self-esteem, materialism in adolescents (부모 양육태도 및 청소년 자아존중감과 물질주의 가치관간의 관계)

  • 김유연;박성연
    • Journal of Families and Better Life
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    • v.19 no.4
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    • pp.1-13
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    • 2001
  • The main purpose of this study was to examine factors affecting adolescents materialism and the relations between parenting, materialism and self-esteem in adolescents. The subjects were 439 first-grade high school students in Kang-nam area located in Seoul. The main results were as follows; (1) Material value was not significantly different according to gender, SES and parents education; (2) Adolescents whose parents are permissive or inconsistent have higher material value. On the other hand, adolescents whose parents are affectionate have relatively lower material value. And adolescents who communicate openly with their parents also have lower material value; (3) Lower material value was found for the adolescents whose self-esteem was high; (4) The mediating role of self-esteem was found: Adolescents self-esteem mediate the relations between parenting, parent-child communication style and material value of adolescents.

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Changes of Consumers' Values reflected in Apparel Advertisements - A content analysis of advertisements in men's magazine, 1976~1996- (의복광고에 나타난 소비자 가치의 변화추세 고찰 -1976~1996년 남성월간지 의복광고분석을 중심으로-)

  • 고선영;이은영
    • Journal of the Korean Society of Clothing and Textiles
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    • v.22 no.1
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    • pp.89-99
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    • 1998
  • The purpose of this study was to investigate the change of consumers' values as appeared in advertisements. Advertisements in men's magazine from 1976 to 1996 were classified by VALSI program. The results were as follows. 1. There was a significant trend that advertisements with outer-directed value decreased while the ones with inner-directed value increased. 2. In case of outer-directed group appeared in advertisements, There was a tendency that the hierarchy of needs shifted from emulators to achievers. However, the shift in hierarchy of needs in inner-directed group was not significant. 3. Even though the advertisements with material value were predominant, there was a tendency that the advertisement with material value decreased while the ones with human value increased.

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Online Hedonic-Experiential Value in Internet Shopping: Antecedents and Consequences (온라인 쇼핑에서 헤도닉-경험가치(Hedonic-Experiential Value): 영향변수와 결과변수)

  • Park, Cheol
    • Asia pacific journal of information systems
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    • v.13 no.4
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    • pp.73-96
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    • 2003
  • Shopping is a work and fun for a consumer. Retailers satisfy social and physiological needs through various experiences as well as economic and rational. Do offer online shopping malls fun and hedonic experiences that offline retailers do? This study applied the hedonic-experiential value relating to the consumption dimension of fun and excitement to online shopping. Especially, a model of online hedonic-experiential value, consisted of its antecedents and consequences, was developed and identified through a survey(n=436). As the result, graphic & multi-media, site structure & design, customer services, payment, individualization, product assortment & display, interactivity, dynamic pricing factors influence online hedonic-experiential value. Also, online hedonic-experiential value significantly related to revisiting, purchasing, and word-of mouth intention of the shopping site. The implications for online retailer are discussed and further research is suggested.

Indicators of Customer Value for the National Technology Information Service

  • Lee, Sun-Young;Suh, Sang-Hyuk;Lee, Byeong-Hee
    • Asian Journal of Innovation and Policy
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    • v.3 no.2
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    • pp.245-261
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    • 2014
  • Knowledge, technology and information have special characteristics different from the ones of normal consumer products and services. Especially the value of such information varies according to external elements such as the provided environment, their method of utilization, and the level and purpose, etc. of the user. In this study, the indicators of information customer value are developed and measured to enhance customer-based values with efforts for making new customers and maintaining existing customers. The result is as follows: 14 customer value indicators were developed. Among the indicators, value gained versus effort, reduced time for research idea investigation and savings in time searching for equipment, and tools and materials got the highest score, which means that time-saving effects were the most important. The field study of this paper was conducted from information users in the field of national R&D, and thus future studies could be conducted in various industries in many countries to attain generalized results.