Predicting Tire Tread Performance from Composition. I

1970 ◽  
Vol 43 (5) ◽  
pp. 1070-1081 ◽  
Author(s):  
J. H. Lane ◽  
C. A. McCall ◽  
P. F. Gunberg
Keyword(s):  
Wear Resistance ◽  
Regression Analysis ◽  
Experimental Program ◽  
Skid Resistance ◽  
Test Results ◽  
Independent Variables ◽  
Test Conditions ◽  
Composition I ◽  
Heat Buildup ◽  
Wet Skid Resistance

Abstract Wet skid resistance of tread compounds, as measured by the British Portable Tester, and heat buildup, as measured by the Goodrich Flexometer, can be predicted accurately from a knowledge of composition and modulus, while wear resistance, as measured by the Pico Abrader, can be predicted with only fair accuracy. The predicting relations were developed using multiple regression analysis from data obtained in a designed experimental program. Independent variables included four polymers (emulsion SBR's of 0, 23.5, and 40% bound styrene and cis-polybutadiene), extender level, carbon black N−285 loading, and modulus. Field test results are presented for compounds selected to show improved wet skid resistance while maintaining wear and groove cracking resistance at present-day levels. Test conditions influencing tire wet skid testing results, particularly the phenomenon of partial hydroplaning, are discussed.

PENGARUH KARAKTERISTIK PEMERINTAHAN TERHADAP AUDIT DELAY LAPORAN KEUANGAN PEMERINTAH DAERAH

2015 ◽  
Vol 11 (2) ◽  
pp. 89
Author(s):  
Baldric Siregar
Keyword(s):  
Regression Analysis ◽  
Financial Statements ◽  
Test Results ◽  
Size Of Government ◽  
Financial Reports ◽  
Financial Report ◽  
Independent Variables ◽  
Central Java ◽  
Sample Data ◽  
Special Region

Financial statements that were not provided on time may cause those report loses their capacity toinfluence decisions. This study aimed to examine the effects of local government characteristics onaudit delay of government financial reports of Yogyakarta Special Region and Central Java. Thisstudy uses 40 districs and cities as the study sample. Data were obtained from the Supreme AuditAgency and the Central Bureau of Statistics. The dependent variable of this research is audit delay.While the independent variables include the size of government, the value of the budget, and leverage.Multiple regression analysis was used to test the hypothesis. The test results showed that the size ofgovernment and the level of leverage negatively affect audit delay. Budgets value does notsignificantly affect audit delay.Keywords: audit delay, financial report, governmental size, budget value, and leverage

Wear resistance and wet skid resistance of composite bionic tire tread compounds with pit structure

2019 ◽  
Vol 6 (8) ◽  
pp. 085331
Author(s):  
Chunyu Mao ◽  
Yunhai Ma ◽  
Siyang Wu ◽  
Yintao Wei ◽  
Junwei Li
Keyword(s):  
Wear Resistance ◽  
Skid Resistance ◽  
Wet Skid Resistance

scholarly journals Promotion Mix to Increase Revenue in The Capital Hotel and Resort Restaurant in Badung Bali District

2020 ◽  
Vol 1 (5) ◽  
pp. 329-340
Author(s):  
Ida Ayu Komang Juniansih ◽  
Komang Feby Kristiawan ◽  
Tettie Setiyarti ◽  
Ida Bagus Radendra Suastama
Keyword(s):  
Regression Analysis ◽  
Linear Regression Analysis ◽  
Multiple Linear Regression Analysis ◽  
T Test ◽  
Test Results ◽  
F Test ◽  
Independent Variables ◽  
Analysis Technique ◽  
Positive Effect ◽  
Dominant Influence

This study aims to determine the effect of the promotion mix and the variables that have a dominant influence on the income of The Capital Hotel and Resort restaurant for the period 2019. The sample of this study uses income from restaurants in The Capital Hotel and Resort and promotional costs for the period 2019. The data analysis technique used is  multiple linear regression analysis, coefficient determination, F test and t test. The results showed that the results of the coefficient determination were 0.990, it could be said that the five independent variables contributed 99% to the income value, the F test results showed F count> F table (113.135> 3.97), which means that the five independent variables simultaneously had a positive effect and significant to the dependent variable. The t test results show t count (17,779)> t table (2,447) and its effect on the dependent variable (0,000 <0.005), stating that advertising (X1) is the variable that has the most dominant influence on income.

scholarly journals PENGARUH MOTIVASI DAN DISIPLIN KERJA TERHADAP KINERJAPEGAWAI PADA DINAS PERTANIAN KABUPATEN SUPIORI

2016 ◽  
Vol 12 (3A) ◽  
pp. 27
Author(s):  
Johanes Eliezer Ayer ◽  
Lyndon R.J. Pangemanan ◽  
Yolanda P. I. Rori
Keyword(s):  
Regression Analysis ◽  
Employee Performance ◽  
Secondary Data ◽  
Sampling Technique ◽  
Primary Data ◽  
Reliability Test ◽  
Measuring Instrument ◽  
Test Results ◽  
Independent Variables ◽  
Labor Discipline

This study aims to identify and analyze whether there is influence of motivation and discipline ito the performance of employees in the Agriculture Office of Supiori District, Papua Province. This research is classified as causal research associative quantitative approach to the instrument in the form of a questionnaire. The population in this study were all employees of the District Agriculture Office Supiori as many as 80 people. The sampling technique by means of saturated or census sampling technique. The sample in this research is to take the population, or as many as 80 samples. The data used in this study are primary data obtained through questionnaires and secondary data related agencies and journals to support this research. Test the validity of the instrument using bivariate Correclation formula, while the reliability test using Cronbach Alpha. Measuring instrument proved valid and reliable for research instruments. Multiple regression analysis used to test hypotheses of this study. The results showed that: motivation (X1) positive and significant impact on employee performance of Agriculture Office in Supiori District () 0.413 with significantly 0,01. Labor discipline (X2) positive and significant impact on employee performance Supiori of Agriculture Office () 0.741 with significantly by 0,00. And based on the test results both independent variables were tested individually dominant in influencing the performance of employees in Supiori District Agriculture Office is working discipline (with a coefficient of 0.489). It can be concluded that in this study the discipline of work (X2) partially are factors that significantly affect performance (Y).

scholarly journals Analysis of the Influence of Product Quality and Promotion of Consumer Decisions to Subscribe to Mnc Vision (Case Study at pt. Mnc Sky Vision Palembang)

2019 ◽  
Vol 3 (12) ◽  
pp. 14-18
Keyword(s):  
Regression Analysis ◽  
Research Method ◽  
Linear Regression Analysis ◽  
Multiple Linear Regression Analysis ◽  
Test Results ◽  
Quality Research ◽  
Consumer Decisions ◽  
Independent Variables ◽  
Study Population

This study aims to look at consumer decisions in subscribing to MNC Vision at PT. MNC Sky Vision Palembang with independent variables of quality research and promotion. The study population was 540 MNC Vision customers in Palembang in 2018. As for the sample, there were 100 customers at the MNC Vision Palembang. This study uses the research method of multiple linear regression analysis. Based on the test results it was found that there was a positive and significant influence on the quality and promotion of consumer decisions in influencing consumer decisions to subscribe to MNC Vision.

THE INFLUENCE OF PROMOTIONAL COST AGAINTS SALES VOLUME PRODUCT BATIK JAMBI SELARAS PINANG MASAK IN JAMBI CITY

2018 ◽  
Vol 1 (2) ◽  
pp. 52-55
Author(s):  
MUHAMMAD IHSAN ◽  
ADE PERDANA SIREGAR
Keyword(s):  
Regression Analysis ◽  
Variable Cost ◽  
Sales Volume ◽  
Test Results ◽  
Sales Promotions ◽  
Independent Variables ◽  
Personnel Costs ◽  
Volume Product ◽  
The Cost ◽  
Analytical Tools

The purpose of this study are: (1) Identify the influence between the promotional cost against sales volume products batik local craft. (2) Identify the variable costs of the dominant promotion affects the sales volumes of local handicraft products batik. Analytical tools used in this research is to test assumptions, multiple regression analysis, T test and F test. The location of the research on Selaras Pinang Masak on JL. KH. Jakfar RT. 01 Mudung Laut, Peelayangan in Jambi City. Based on the test results proved that partially variable cost of sales promotions and personnel costs selling that can provide significant effects against the volume of sales of products batik on Selaras Pinang Masak in Jambi City, while variable costs of advertising and the cost of publicity does not influence significantly to sales volumes of products batik on Selaras Pinang Masak in Jambi City. Based on the results of the calculations found that the variable cost of sales promotions and personnel costs selling that has significant influence against the volume of sales of products batik on Saanggar Selaras Pinang Masak in Jambi City, in the study the independent variables that influence the dependent variable was dominant against the cost of sales promotions

Wet Skid Resistance of Car and Truck Tires

1974 ◽  
Vol 2 (2) ◽  
pp. 102-116 ◽  
Author(s):  
A. Dijks
Keyword(s):  
Surface Texture ◽  
Road Surface ◽  
Skid Resistance ◽  
Test Results ◽  
Side Force ◽  
Force Coefficients ◽  
Truck Tires ◽  
Braking Force ◽  
Wet Skid Resistance

Abstract Two test trailers for measuring tire characteristics are described. One of the trailers is specially built for testing car tires and can steer, camber, and brake the test tire. This trailer is provided with a five component measuring hub. The second trailer, for testing truck tires, is restricted to braking only. Braking forces are measured with a dynamometer. The determination of peak and locked wheel braking force coefficients is discussed. In addition, for car tires, a method for obtaining side force coefficients is given. Test results are given for both car and truck tires showing the influence of road surface texture, speed, and tread depth on skid resistance, and the results are compared.

PENGARUH LOKASI DAN CITRA MEREK TERHADAP KEPUTUSAN PEMBELIAN KONSUMEN (Studi Kasus Pada Konsumen KFC Dermaga Point Palembang)

JEMBATAN ◽  
2018 ◽  
Vol 15 (1) ◽  
pp. 23-32
Author(s):  
Puspitasari Puspitasari ◽  
Dian Eka ◽  
Welly Nailis
Keyword(s):  
Regression Analysis ◽  
Significant Influence ◽  
Brand Image ◽  
Primary Data ◽  
Purchase Decision ◽  
Test Results ◽  
F Test ◽  
Independent Variables ◽  
Analysis Technique ◽  
Positive Effect

This study was conducted to determine and analyze the effect of Location (X1) and Brand Image (X2) on The Purchase Decision (Y) on the consumer KFC Pier Point Palembang. This study uses primary data obtained through questionnaires, samples taken by 100 respondents using method purposive sampling. The analysis technique used is multiple regression analysis, F test and T test results of research on the F test showed a significant value of 0.000, which means independent variables consisting of Location (X1) and Brand Image(X2) together (simultaneously) the positive effect and significant impact on Purchase Decision (Y) in purchase and consume products in KFC Pier Point Palembang. The study also showed partial that variable Location (X1) and Brand Image (X2) has positive and significant influence on the Purchase Decision (Y) in purchase and consume products in KFC Pier Point Palembang. Keywords : location and brand image, purchase decision

An Attempt to Measure the Logical Consistency of a Theory of Academic Motivation

1974 ◽  
Vol 18 (1) ◽  
pp. 68-78 ◽  
Author(s):  
Elizabeth M. Campbell
Keyword(s):  
Regression Analysis ◽  
Path Analysis ◽  
Academic Motivation ◽  
Empirical Test ◽  
Logical Consistency ◽  
Independent Variables ◽  
Situational Variables ◽  
Test Motivation ◽  
Test Conditions

This paper is concerned with measuring the logical consistency of a theory of academic motivation which involves three classes of phenomena: personality dispositions, values, and situational variables. Two hundred boys and 194 girls completed a motivational exercise under non-test and test conditions, and, by means of path analysis following regression analysis, an attempt was made to assess the consistency of the theory. The model stood up to the empirical test well, but the amount of test motivation that was explained by the independent variables (39.17 per cent) was modest. With the wisdom of hindsight, some suggestions are made for the improvement of the model.

EFFECTS OF BLEND RATIO AND SBR TYPE ON PROPERTIES OF SILICA-FILLED SBR/NR TIRE TREAD COMPOUNDS

2016 ◽  
Vol 89 (2) ◽  
pp. 240-250 ◽  
Author(s):  
Pongdhorn Sae-oui ◽  
Krisda Suchiva ◽  
Uthai Thepsuwan ◽  
Wenussarin Intiya ◽  
Pram Yodjun ◽  
...  
Keyword(s):  
Dynamic Properties ◽  
Rolling Resistance ◽  
Skid Resistance ◽  
Blend Ratio ◽  
Elongation At Break ◽  
Tear Strength ◽  
Cure Time ◽  
Lower Heat ◽  
Heat Buildup ◽  
Wet Skid Resistance

ABSTRACT The influences of blend ratio between SBR and NR and SBR type, emulsion SBR (E-SBR) and solution SBR (S-SBR), on properties of silica-filled passenger car tire tread–based compounds were investigated. Results reveal that, with increasing NR proportion, cure time and most mechanical and dynamic properties, for example, tensile strength, tear strength, modulus, abrasion resistance, and wet skid resistance of the compounds and vulcanizates, are reduced, whereas the improvements in elongation at break and crack growth resistance are observed. The unexpectedly impaired mechanical and dynamic properties identified in the presence of NR are mainly caused by thermal degradation of NR taking place during the mixing process at high temperature. Compared with E-SBR, S-SBR provides superior properties in many aspects, that is, higher modulus and greater abrasion and wet skid resistances as well as lower heat buildup and rolling resistance. However, E-SBR gives greater tear strength than S-SBR.

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