statistical equation
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2020 ◽  
Vol 7 (1) ◽  
pp. 54-64
Author(s):  
Bhakti Helvi Rambe

The purpose of this study was to analyze the Free Cash Flow (FCF) Firm Size and the Debt to Equity Ratio on Financial Performance of Manufacturing Companies on the Indonesia Stock Exchange. This research is causal. The data taken as this research are Manufacturing Companies listed on the Indonesia Stock Exchange in 2017-2018. The population in the study was 146 companies, with a sample of 30 companies using the purposive sampling method, so that the number of observations was 60 units of observation. The data analysis method in this research is multiple linear regression. R Square Testing Results of 0.162 means that the independent variable is X1Firm Size x2 Free Cash Flow (FCF), x3 Debt to Equty Ratio simultaneously affects Financial Performance by 16.2% and the remaining 83.8% is influenced by other factors. Research Results Partially understood that the Firm Size variable has no negative effect and is not significant on Financial Performance. According to the data in table 5. Results of the statistical equation test that the value of Sig. Firm  Size variable x1 0.872> 0.05 does not affect and is not significant to the dependent variable Y Financial Performance then the hypothesis is rejected. The results of the study are partially understood that the Free Cash Flow (FCF) variable has a positive and significant effect on financial performance. According to the data in table 5. Results of the statistical equation test that the value of Sig. variable Free Cash Flow (FCF) x2 0.043 <0.05 significant effect on the dependent variable Y Financial Performance. Then the variable Free Cash Flow (FCF) hypothesis has a positive effect on the Financial Performance of Manufacturing Companies in the Indonesia Stock Exchange. The research results are partially known that the Debt to Equity Ratio variable has a positive and significant effect on Financial Performance. Sig value. Debt to Equity Ratio Variable x3 0.018 <0.05 has a significant effect on the dependent variable Y Financial Performance of manufacturing companies on the Indonesia Stock Exchange. Then the hypothesis of Debt to Equity Ratio Variables has a positive effect on the Financial Performance of Manufacturing Companies on the Indonesia Stock Exchange. It is simultaneously significant. Where the probability value (Sig.) 0.018 <0.05, the influence of the free variable consists of the variable Company Size x1, Free Cash Flow (FCF) variable x2, Debt to Equity Ratio Variable x3 Against the Bound Variable Financial Performance variable Y in Manufacturing Companies listed on Indonesia stock exchange.


Author(s):  
Hazem Sabbagh ◽  
Samer Hussein Al Ali ◽  
Mohd Zobir Hussein ◽  
Zead Abudayeh ◽  
Rami Ayoub ◽  
...  

The purpose of this study was to investigate the effect of chitosan (CS) and Alginate (Alg) polymers concentrations and CaCl2 concentration on metronidazole (MET) drug loading (LE), size particles and zeta potential. Nanocomposites were prepared by ionotropic pregelation method. A (21 *31 *21) *3= 36 full factorial design (FFD) was used to predict statistical equation and responses. The MET-CS-AlgNPs nanocomposites were characterized by X-ray diffraction, Fourier-transform infrared spectroscopy, thermal gravimetric analysis, scanning electron microscope and in vitro drug release studies. All data indicated the presence of drug into MET-CS-AlgNPs nanocomposites. The release profile of MET-CS-AlgNPs nanocomposites was found to be sustained


In this research work, a design has been proposed for the Health Monitoring system that works with statistical equation models. The key advantage of this method is that it can work with different number of health parameters to through light on the health status of a person. The selection of the variables that will form the health monitoring model was done on the basis of three (Pearson, Kendall,spearman) correlation metrics. The root cause analysis based on OLS regression method confirms the mathematical relationship between the health indicators variables. It was found that visceral fat, as health indicator and as a dependent variable can act as function of seven other variables for knowing the health condition of a person. The validation of the model is done on the basis of multiple statistical tests.


Enfoque UTE ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 197-204
Author(s):  
Francisco Rodríguez ◽  
Andrea Castro ◽  
Freddy Marín ◽  
Gloria Roldán ◽  
Fausto Viteri Moya

The typical meteorological year (TMY) based on daily rainfall data was calculated in the parish of Nanegalito; 12 years were considered, from 2004 to 2015, including both years. For the establishment of the TMY, the Finkelstein-Schafer (FS) statistical equation was chosen, together with the calculation of the cumulative distribution function for each month of each year considered. The weighted sum, calculated from the FS values, was used to finally choose the months that best represent the climatic characteristics of the period analyzed by applying the root mean square deviation (RMSD). Once these values were obtained, the TMY of Nanegalito was estimated based on the precipitation. The determination of Nanegalito TMY may be useful for the management of several processes, in this and other surrounding parishes, as an example, Pacto, such as irrigation planning in crops, analysis in drought risk scenarios, and if other variables are analyzed in the future, they could serve as tools for the study of possible renewable energies.


2019 ◽  
Vol 865 ◽  
pp. 247-280
Author(s):  
Yohei Onuki ◽  
Toshiyuki Hibiya

Parametric subharmonic instability arising in a narrow-band wave spectrum is investigated. Using a statistical equation that describes weakly nonlinear interactions in a random wave field, we perform analytical and numerical stability analyses for a modulating wave train. The analytically obtained growth rate $\unicode[STIX]{x1D706}=(-\unicode[STIX]{x1D707}+\sqrt{\unicode[STIX]{x1D707}^{2}+4CE_{B}})/2$ agrees favourably with the results from direct numerical experiments, where $\unicode[STIX]{x1D707}$ is the half-value width of the background wave frequency spectrum, $E_{B}$ is the background wave energy density, and $C$ is a constant. This expression has two asymptotic limits: $\unicode[STIX]{x1D706}\sim \sqrt{CE_{B}}$ for $\unicode[STIX]{x1D707}\ll \sqrt{CE_{B}}$ and $\unicode[STIX]{x1D706}\sim CE_{B}/\unicode[STIX]{x1D707}$ for $\unicode[STIX]{x1D707}\gg \sqrt{CE_{B}}$. In the terms of weak turbulence, these two growth rates correspond to the ones occurring in the dynamic and kinetic time scales. In this way, our formulation successfully unifies the two conventional types of parametric subharmonic instability and offers a new criterion to determine the applicability of the classical kinetic equation in three-wave systems.


2011 ◽  
Vol 68 (1-2) ◽  
pp. 63-75 ◽  
Author(s):  
Claudio Maccone
Keyword(s):  

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