• Title/Summary/Keyword: strong correlation

Search Result 2,036, Processing Time 0.027 seconds

Changes of Physicochemical Quality in Hardy Kiwifruit (Actinidia arguta) during Storage at Different Temperature

  • Park, Youngki;Kim, Chul-Woo
    • Korean Journal of Plant Resources
    • /
    • v.28 no.3
    • /
    • pp.329-332
    • /
    • 2015
  • The effect of storage temperature and the storage period of hardy kiwifruits on the fruit firmness, soluble solids and fruit weight were studied in this work. The investigation was carried out on the Sae-Han cultivar of Actinidia arguta. It has an edible smooth skin and contains high amounts of sugar and vitamin C (ascorbic acid). In this research, the measurement of fruit firmness, soluble solids, and fruit weight were carried out at various temperatures (5, 10, 15, and 20℃) during 14 days. Fruit firmness rapidly decreased and soluble solids content increased at 15 and 20℃. We also investigated the correlation between fruit firmness and soluble solids content. There was a strong correlation between fruit firmness and soluble solids content. That means that fruit firmness affect the soluble solids content of hardy kiwifruit.

Physical Properties of Excavated Rocks in Taegu Area (대구지역 굴착암석의 물리적 특성)

  • 이상호;차완용;김영수;이재호
    • Proceedings of the Korean Society of Agricultural Engineers Conference
    • /
    • 1999.10c
    • /
    • pp.265-270
    • /
    • 1999
  • At this study, we investigated the chemical component and the mineral granular composition of sedimentary rock and others where were distributed in Taegu area and compared correlations with each data through the various physicla and mechanical characteristic test. As the result, d and E, they are kinds of granite, which contain much albite than others were proved to be strong by mechanical tests and the correlation moduli were proved to be more than 0.8 except P wave velocity-Poisson's ration relation when examined Elastic moduluous -Poisson's ration, P, wave velocity-Uniaxial compression strength, Elastic modulous -Uniaxial compression strength and Uniaxial compression strength-Poisson's ration correlation function graph.

  • PDF

A study on Relationship between Pattern wafer and Blanket Wafer for STI-CMP (STI-CMP 공정을 위한 Pattern wafer와 Blanket wafer 사이의 특성 연구)

  • 김상용;이경태;김남훈;서용진;김창일;이우선;장의구
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
    • /
    • 1999.05a
    • /
    • pp.211-213
    • /
    • 1999
  • In this paper, we documented the controlling oxide removal amount on the pattern wafer using removal rate and removal thickness of blanket wafer. There was the strong correlation relationship for both(correlation factor:0.7109). So, we could confirm the repeatability as applying for STI CMP process from the obtained linear formular. As the result of repeatability test, the difference of calculated polishing time and actual polishing time was 3.48 seconds based on total 50 lots. If this time is converted into the thickness, it is from 104$\AA$ to 167$\AA$. It is possible to be ignored because it is under the process margin.

  • PDF

An Acoustical Analysis of /s/ in the Speech of Dysarthric Speakers (후천적 신경손상으로 인한 마비성 구어장애자들의 마찰음 /s/에 대한 음향학적 연구)

  • Park Hee-Jung;Shin Hye-Jung;Jeong Ok-Ran;Seok Dong-Il
    • Proceedings of the KSPS conference
    • /
    • 2003.05a
    • /
    • pp.101-104
    • /
    • 2003
  • The purpose of this study was to compare acoustic differences of fricative /s/ between the dysarthric subjects and normal subjects. In additional, the subjects' speeches were evaluated in terms of word intelligibility containing /s/ and perceptual severity. Acoustic parameters were duration, peak frequency and intensity of /s/. The results showed that the first peak frequency and intensity of /s/ were significantly different between dysarthric subjetcts and normal subjects. Second, peceptual parameters were significantly different between dysarthric subjetcts and normal subjects. The Pearson correlation coefficient was used to determine the relationship between the acoustical and perceptual data. The results showed that there was a strong correlation between perceptual parameters and peak frequency of /s/.

  • PDF

Comparison between Geostrophic Currents and Measured in the Southwestern Part of the East Sea

  • Shin, Chang-Woong;Byun, Sang-Kyung;Kim, Cheol-Soo
    • Journal of the korean society of oceanography
    • /
    • v.31 no.2
    • /
    • pp.89-96
    • /
    • 1996
  • A comparative study between geostrophic currents and directly measured currents was conducted for the upper layer to 200 m depth by using data from eleven observations of CTD and ADCP between March 1992 and November 1993 in the southwestern part of the East Sea. First-order linear relationship was found between calculated geostrophic currents and measured currents with the correlation coefficient of 0.83. On the average, 68.7% of directly measured current can be explained by geostrophic current obtained by dynamic method. The correlation coeflicients increased with total geostrophic transport, which suggests that geostrophic balance is good in areas of strong current.

  • PDF

A Study on Sea Trial Test Scenario for Estimation of Hydrodynamic Rotary Derivatives (선수동요 동유체마력 추정을 위한 시운전)

  • Yoon, Hyeon-Kyu
    • Journal of the Society of Naval Architects of Korea
    • /
    • v.43 no.1 s.145
    • /
    • pp.50-58
    • /
    • 2006
  • Free running model tests gives us only maneuvering indices not hydrodynamic derivatives. For this reason, system identification method has been applied to the measured data to identify mathematical model describing hydrodynamic force. However It is difficult to obtain complete set of maneuvering derivatives because of strong correlation of sway velocity and yaw rate. Therefore, in this paper, we assumed that sway velocity related coefficients would be obtained by oblique towing test. and then proposed new procedure to estimate yaw related coefficients. To do this, correlation and regression analyses were carried out to establish modified model and estimate maneuvering derivatives. Also D-optimal rudder input scenario was found based on the modified model and confirmed the validity of its sufficient richness as a input scenario.

Correlation between water temperature and catch at a set net in Yeosu Bay, Korea

  • Choo, Hyosang
    • Fisheries and Aquatic Sciences
    • /
    • v.24 no.1
    • /
    • pp.41-52
    • /
    • 2021
  • Data for fish species composition and the catch of fish species were obtained from the daily trading records for the period between April and December 2016 to 2018 at the set net fishing grounds in Yeosu Bay, Korea. The annual mean total catch was 195.8 tons, and the dominant species was the Spanish mackerel (Scomberomorus niphonius), which accounts for about 55 percent of the total catch. The catch increased in spring and autumn. Increase in spring is caused by not Spanish mackerel but other fish while the increase in autumn by Spanish mackerel. The distinct increase of the catch in summer, 2017 was due to the new recruitment of small-sized Spanish mackerel, which was probably to be from the fish population hatched in spring in the East China Sea. Our results showed a strong correlation between water temperature and catch fluctuation. The catch increases with the increase in water temperatures, and the periodic pattern of the water temperature and catch fluctuation is more consistent in the offshore waters, in which warm current flows, than in the coast waters.

Physicochemical quality, antioxidant compounds, and activity of 'Beta Tiny' and 'TY Nonari' cherry tomatoes during storage

  • Joung, Minji;Shin, Youngjae
    • Korean Journal of Food Science and Technology
    • /
    • v.53 no.1
    • /
    • pp.63-71
    • /
    • 2021
  • In this study, a comparative analysis was carried out between the 'Beta Tiny' and 'TY Nonari' cherry tomato cultivars harvested at the pink and red stages. Samples of the red stage were stored at room temperature for 9 days, during which physicochemical qualities, antioxidant compounds, and activities were measured. As cherry tomato ripening and storage progressed, firmness was reduced, whereas the lycopene content increased. Total phenolic content and antioxidant activity showed no significant changes as ripening and storage progressed; however, total flavonoid content of 'Beta Tiny' showed a significant increase (p<0.05). The main polyphenols in the two cultivars were identified as chlorogenic acid, rutin, and (-)-epigallocatechin gallate, among which chlorogenic acid showed a significant decrease (p<0.05) as ripening and storage progressed. A strong correlation was found between total phenolic and flavonoid content (R=0.744), and ABTS radical scavenging activity (R=0.975). Additionally, a negative correlation was shown by lycopene and chlorogenic acid (R= -0.934).

Assessment of Vertebral Left Atrial Size and C-reactive Protein in Dogs With Myxomatous Mitral Valve Disease

  • Hwang, Sun-Hwee;Song, Kun Ho
    • Journal of Veterinary Clinics
    • /
    • v.38 no.1
    • /
    • pp.16-20
    • /
    • 2021
  • Recently, a new method of evaluating left atrial size called vertebral left atrial size (VLAS) was introduced in dogs. Total 155 dogs were examined at the Veterinary Medical Teaching Hospital of Chungnam National University. In this study, myxomatous mitral valve disease (MMVD) stage and VLAS showed a significant correlation in those dogs. Also, the relationship between C-reactive protein (CRP) and VLAS has yet to be examined. We found a strong positive correlation between VLAS and CRP-a significant increase in CRP was observed with increasing VLAS values. Thus, it would be beneficial to measure VLAS besides employing the current radiological and echocardiographic methods when evaluating heart size. Measuring VLAS could be an additional diagnostic tool for diagnosing MMVD in dogs.

전자산업의 체화기술군 분석에 관한 연구

  • 김일용;임채윤
    • Proceedings of the Technology Innovation Conference
    • /
    • 1996.12a
    • /
    • pp.118-138
    • /
    • 1996
  • This paper identifies a set of appropriate imbedded technology in the Korean electronic industry, and explores a relationship between competitiveness of imbedded technology and technological competitiveness. The results of statistical analyses, based on a survey of manufacturing organizations, show that competitiveness of imbedded technology has a high correlation with technological competitiveness. Especially, the imbedded technology related to management practices is more important to technological competitiveness than other imbedded technology. it is also observed using multiplicate analysis that cross-functional interface and R&D commitment have a strong influence on the competitiveness of imbedded technology.

  • PDF