scholarly journals Proposal of new correlation equation between screw weight sounding (SWS) test results and N values / su values

2021 ◽  
Vol 16 (4) ◽  
pp. 319-331
Author(s):  
Akira FUKAI ◽  
Akihiko OSHIMA ◽  
Kengo YASUDA ◽  
Syougo NAKANO ◽  
Yudai HAGIHARA ◽  
...  
Keyword(s):  
Correlation Equation ◽  
Test Results ◽  
New Correlation

scholarly journals A Three-Step Approach to Estimation of Reduction Potentials of Natural Mixtures of Antioxidants Based on DPPH Test; Illustration for Catechins and Cocoa

Proceedings ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 4 ◽  
Author(s):  
Barbara Kusznierewicz ◽  
Monika Baranowska ◽  
Klaudia Suliborska ◽  
Wojciech Chrzanowski ◽  
Agnieszka Bartoszek
Keyword(s):  
Electrochemical Properties ◽  
Plant Extracts ◽  
Reduction Potential ◽  
Correlation Equation ◽  
Complex Mixtures ◽  
Test Results ◽  
Reduction Potentials ◽  
Dpph Test

The aim of this study is to propose a methodology to assess electrochemical properties of complex mixtures of antioxidants, such as plant extracts, based on the results of simple and popular DPPH test. The first, most difficult step, involves determinations of standard reduction potentials (E0) for the series of purified compounds (here catechins). The next step is the calculation of stoichiometric values (n10) based on the results of DPPH test for the same compounds. Finally, a correlation equation is formulated, which is then employed to estimate “cumulative reduction potential” (Ec) for the mixture of interest (here cocoa) using DPPH test results.

Study on Reliability Test Method of Heavy Duty Vehicle Based on Proving Ground

2012 ◽  
Vol 614-615 ◽  
pp. 460-463
Author(s):  
Yu Zhuo Men ◽  
Hai Bo Yu ◽  
Xin Pan
Keyword(s):  
Load Distribution ◽  
Correlation Equation ◽  
Test Method ◽  
Reliability Test ◽  
Test Results ◽  
Heavy Duty ◽  
Test Specifications ◽  
Heavy Duty Vehicle ◽  
Load Carrying ◽  
Cumulative Fatigue Damage

A new method for correlation test was presented to study the reliability of a heavy duty vehicle, and the method can combine the real customer usage with the enhancement test on proving ground, and avoid the test blindness. Aiming at the data that were tested on the typical pavements of the customer and enhancement roads of proving ground, the rain-flow counting method was used to obtain the load distribution matrixes , according to the correlation equation, the cumulative fatigue damage and loading spectrums of the 90% customer and proving ground were optimized and calculated. Through the correlation analysis, the pavements enhancement coefficient and the reliability test specifications were obtained. The test results indicate that the new specifications can predict the potential failures of the load carrying structures quickly, shorten the test cycles.

scholarly journals Study the correlation between Sunspot Number and Solar Flux during Solar Cycle 24.

2019 ◽  
Vol 17 (42) ◽  
pp. 56-64
Author(s):  
Zeinab F Hussien
Keyword(s):  
Solar Cycle ◽  
Sunspot Number ◽  
Correlation Equation ◽  
Solar Flux ◽  
Test Results ◽  
Linear Regression Equation ◽  
Mutual Correlation ◽  
Solar Cycle 24 ◽  
Cycle 24 ◽  
Annual Time

Abstract      In this research, a study of the behavior and correlation between sunspot number (SSN) and solar flux (F10.7) have been suggested. The annual time of the years (2008-2017) of solar cycle 24 has been adopted to make the investigation in order to get the mutual correlation between (SSN) and (F10.7). The test results of the annual correlation between SSN & F10.7 is simple and can be represented by a linear regression equation. The results of the conducted study showed that there was a good fit between SSN and F10.7 values that have been generated using the suggested mutual correlation equation and the observed data.

A Correlation Between Rolling Tire Contact Friction Energy and Indoor Tread Wear

2002 ◽  
Vol 30 (2) ◽  
pp. 83-99 ◽  
Author(s):  
S. Knisley
Keyword(s):  
Wear Test ◽  
Correlation Equation ◽  
Rolling Contact ◽  
Contact Friction ◽  
Test Results ◽  
Tire Industry ◽  
Laser Measurements ◽  
Tire Wear ◽  
Friction Energy ◽  
Global And Local

Abstract In an effort to reduce tire development time and cost, tire companies have developed accelerated indoor wear test technology and are developing modeling methods to conduct tire wear evaluations in a “virtual” sense. Much automotive and tire industry expertise has been devoted to establishing a relationship between outdoor and indoor wear test results. The development of modeling techniques has focused on the prediction of friction energy in rolling tire contact. A successful “virtual” wear test based on this technique requires an objective link between rolling tire contact friction energy and tire wear. In this paper, a correlation equation using experimentally measured rolling contact friction energy and indoor tread wear is obtained for a specific passenger tire construction. Test equipment and methods for rolling contact measurements and indoor tread wear are described. Laser measurements of tread loss are compared to friction energy results for combined straight-ahead rolling and cornering conditions to establish a reasonable correlation between contact friction energy and tire tread loss on a global and local scale across loading conditions representative of a realistic outdoor wear course.

Study on Condensation Heat Transfer Under High-Temperature, High-Pressure Conditions

2008 ◽  
Author(s):  
H. Yuasa ◽  
N. Abe ◽  
H. Ono ◽  
K. Shirakawa ◽  
S. Morooka
Keyword(s):  
Heat Transfer ◽  
High Pressure ◽  
High Temperature ◽  
Vapor Condensation ◽  
Condensation Heat Transfer ◽  
Vapor Flow ◽  
Test Results ◽  
New Correlation ◽  
High Pressure High Temperature ◽  
Condensation Effect

Knowing the predicted overpressure rate under anticipated operational occurrences (AOOs) is very important when evaluating the integrity of a BWR reactor pressure vessel. One of the factors that influence the overpressure rate is the wall condensing performance. Many condensing studies have been done under low-pressure conditions without vapor flow, but few condensing test results under BWR conditions have been reported. Therefore, the purposes of this study were to extend the vapor condensing data base for high-pressure, high-temperature conditions, to improve the heat transfer correlation and to evaluate the condensing effect on the overpressure rate. Condensation heat transfer tests have been performed with the pressure range from 0.5 to 8 MPa under upward and downward vapor flow. The test section consisted of a condensing tube and a water-cooling jacket. The condensing tube was a circular tube. The test results showed that the condensation heat transfer coefficient increased with the velocity of vapor flow due to enhancement of heat transfer caused by turbulence of the liquid film. We obtained a new correlation for condensation heat transfer that considered vapor shear force and condensate film Reynolds number. This new correlation agreed well with experimental data over a wide range of pressure. New correlation was incorporated into TRACG02modT1 code. When the condensation heat transfer tests were analyzed using this modified TRACG02modT1 code, the calculated condensation heat transfer coefficients were found to be in considerable agreement with the measured data. Furthermore, when the main steam isolation valve AOO (safety relief valve capacity design) of the BWR plant was evaluated by this modified TRACG02modT1 code, we found that the vapor condensation effect appeared under relatively high-pressure conditions and the pressure with improved condensation model was lower than that without vapor condensation. In summary, the condensation heat transfer model of TRACG02modT1 code has been improved based on high-pressure, high-temperature condensation test data with vapor flow. The vapor condensation effect was found to be strong, especially in the pressure increase AOO of the actual plant.

SIKAP PADA KOMPENSASI DAN EMPLOYEE ENGAGEMENT TERHADAP ORGANIZATIONAL CITIZENSHIP BEHAVIOR (Studi Pada Karyawan Staf Salah Satu Perusahaan Pertambangan Di Kalimantan)

2020 ◽  
Vol 5 (2) ◽  
pp. 28-35
Author(s):  
Linda Mora ◽  
Arif Rahman Hakim
Keyword(s):  
Employee Engagement ◽  
Organizational Citizenship ◽  
Organizational Citizenship Behavior ◽  
Content Validity ◽  
Quantitative Research ◽  
Sampling Technique ◽  
Correlation Equation ◽  
Citizenship Behavior ◽  
Measuring Instrument ◽  
Test Results

This study aims to determine the influence of attitudes on compensation and employee engagement on Organizational Citizenship Behavior (OCB). This type of quantitative research, with a population and sample that is all employees taff position in mining contracting companies, amounting to 50 employees. The sampling technique in this study used a census with data collection methods using a measuring instrument in the form of a questionnaire with a Likert scale type. Validity in this study uses content validity, with the validity of the ratio of this study using the method of content validity ratio (CVR). Testing the analysis of measuring instrument items was calculated by Pearson's product moment correlation equation and reliability testing by Cronbach's Alpha technique. Data analysis method with multiple analysis techniques. Based on the results of the regression test above, the value obtained by sig. 0.00 <0.05 then H0 is rejected and Ha is accepted, so it can be concluded that there is an influence of attitude towards compensation and employee engagement towards OCB simultaneously. From the determination test results obtained value of 0.325, the contribution of attitudes towards compensation and employee engagement is 32.5% to OCB, and 67.5% is influenced by other variables outside of the variables in this study. Keywords: Attitude toward compensation, employee engagement, organizational citizenship behavior   Penelitian ini bertujuan untuk mengetahui adanya pengaruh sikap pada kompensasi dan employee engagement terhadap Organizational Citizenship Behavior (OCB). Jenis penelitian kuantitatif, dengan populasi dan sampel yaitu seluruh karyawan posisi taff di perusahaan kontraktor pertambangan yang berjumlah 50 orang karyawan. Teknik pengambilan sampel dalam penelitian ini menggunakan sensus dengan metode pengumpulan data menggunakan alat ukur berupa kuesioner dengan jenis skala Likert. Validitas dalam penelitian ini menggunakan validitas isi, dengan validitas rasio penelitian ini menggunakan metode content validity ratio (CVR). Pengujian analisis aitem alat ukur dihitung dengan persamaan korelasi product moment dari Pearson dan uji reliabilitas dengan teknik Alpha Cronbach. Metode analisis data dengan teknik analisis berganda. Berdasarkan hasil uji regresi di atas diperoleh nilai dengan sig. 0,00 < 0,05 maka H0 ditolak dan Ha diterima, sehingga dapat disimpulkan bahwa ada pengaruh sikap terhadap kompensasi dan employee engagement terhadap OCB secara simultan. Dari hasil uji determinasi diperoleh nilai 0,325, maka kontribusi sikap terhadap kompensasi dan employee engagement sebesar 32,5% terhadap OCB, dan 67,5% dipengaruhi oleh variabel lain diluar dari variabel dalam penelitian ini. Kata Kunci: Sikap pada kompensasi, employee engagement, organizational citizenship behavior

Using Conventional Articulation Tests With Highly Unintelligible Children

1992 ◽  
Vol 23 (1) ◽  
pp. 52-60 ◽  
Author(s):  
Pamela G. Garn-Nunn ◽  
Vicki Martin
Keyword(s):  
Test Results ◽  
Phonological Processes ◽  
Rule Based ◽  
Severity Level ◽  
Error Sensitivity ◽  
Conventional Tests ◽  
Severity Levels ◽  
Conventional Test ◽  
Impaired Children

This study explored whether or not standard administration and scoring of conventional articulation tests accurately identified children as phonologically disordered and whether or not information from these tests established severity level and programming needs. Results of standard scoring procedures from the Assessment of Phonological Processes-Revised, the Goldman-Fristoe Test of Articulation, the Photo Articulation Test, and the Weiss Comprehensive Articulation Test were compared for 20 phonologically impaired children. All tests identified the children as phonologically delayed/disordered, but the conventional tests failed to clearly and consistently differentiate varying severity levels. Conventional test results also showed limitations in error sensitivity, ease of computation for scoring procedures, and implications for remediation programming. The use of some type of rule-based analysis for phonologically impaired children is highly recommended.

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