scholarly journals Theory of second optimization for scan experiment

2015 ◽  
Vol 30 (26) ◽  
pp. 1550149 ◽  
Author(s):  
X. H. Mo

In many high energy experiments, the physics quantities are obtained by measuring the cross-sections at a few energy points over an energy region. This was referred to as scan experiment. The optimal design of the scan experiment (how many energy points, what the energies are, and what is the luminosity at each energy point) is of great significance both for scientific research and from economical viewpoint. Two approaches, one has recourse to the sampling technique and the other resorts to the analytical proof, are adopted to figure out the optimized scan scheme for the relevant parameters. The final results indicate that for [Formula: see text] parameters scan experiment, [Formula: see text] energy points are necessary and sufficient for optimal determination of these [Formula: see text] parameters; each optimal position can be acquired by single parameter scan (sampling method), or by analysis of auxiliary function (analytic method); the luminosity allocation among the points can be determined analytically with respect to the relative importance between parameters. By virtue of the second optimization theory established in this paper, it is feasible to accommodate the perfectly optimal scheme for any scan experiment.

Author(s):  
M. Noor Salim ◽  
Andreas Latuperissa

The purpose of this study is: 1) To analyze how the different ways of determining impairment losses reserve will affect the interest earned 2) To make recommendation on the best way to determine the impairment losses reserve. This research method uses a quantitative approach based on time series data and cross sections. The population in this study is PT. Bank Mandiri (Persero) Tbk. In this study the sampling technique used probability sampling method. Determination of the sample using the simple random sampling method. Data analysis method in this study uses multiple regression analysis with the help of SPSS version 24.00. The results of the study show some conclusions as follows: 1) Delay in debt payment obligations (PKPU) is proven to have an influence on allowance for impairment losses (CKPN) with a positive relationship. 2) Credit quality (KK) is proven to have an influence on allowance for impairment losses (CKPN) in a negative direction. 3) Delayed debt payment obligations (PKPU) have been proven to influence interest earned with a negative relationship. 4) Credit quality (KK) is proven to have an influence on interest earned and 5) Allowance for impairment losses (CKPN) is proven to have an influence on interest earned with a negative relationship.


2020 ◽  
Vol 27 ◽  
pp. 106
Author(s):  
Sotirios Chasapoglou ◽  
A. Tsantiri ◽  
A. Kalamara ◽  
M. Kokkoris ◽  
V. Michalopoulou ◽  
...  

The accurate knowledge of neutron-induced fission cross sections in actinides, is of great importance when it comes to the design of fast nuclear reactors, as well as accelerator driven systems. Specifically for the 232Th(n,f) case, the existing experimental datasets are quite discrepant in both the low and high energy MeV regions, thus leading to poor evaluations, a fact that in turn implies the need for more accurate measurements.In the present work, the total cross section of the 232Th(n,f) reaction has been measured relative to the 235U(n,f) and 238U(n,f) ones, at incident energies of 7.2, 8.4, 9.9 MeV and 14.8, 16.5, 17.8 MeV utilizing the 2H(d,n) and 3H(d,n) reactions respectively, which generally yield quasi-monoenergetic neutron beams. The experiments were performed at the 5.5 MV Tandem accelerator laboratory of N.C.S.R. “Demokritos”, using a Micromegas detector assembly and an ultra thin ThO2 target, especially prepared for fission measurements at n_ToF, CERN during its first phase of operations, using the painting technique. The masses of all actinide samples were determined via α-spectroscopy. The produced fission yields along with the results obtained from activation foils were studied in parallel, using both the NeusDesc [1] and MCNP5 [2] codes, taking into consideration competing nuclear reactions (e.g. deuteron break up), along with neutron elastic and inelastic scattering with the beam line, detector housing and experimental hall materials. Since the 232Th(n,f) reaction has a relatively low energy threshold and can thus be affected by parasitic neutrons originating from a variety of sources, the thorough characterization of the neutron flux impinging on the targets is a prerequisite for accurate cross-section measurements, especially in the absence of time-of-flight capabilities. Additional Monte-Carlo simulations were also performed coupling both GEF [3] and FLUKA [4] codes for the determination of the detection efficiency.


2019 ◽  
pp. 651
Author(s):  
I Gusti Diah Agung Prabawati Suteja ◽  
Ni Luh Sari Widhiyani

This study aims to determine the effect of time budget pressure (TBP) and professionalism on audit quality with auditor experience and job satisfaction as moderating in KAP in Bali. The population in this study were all auditors who worked in KAP in Bali, amounting to 77 auditors. Determination of samples in this study using non probability sampling method with purposive sampling technique. The sample amounted to 42 auditors. The results of this research questionnaire were measured using a Likert scale. The data analysis technique used is Moderated Regression Analysis. The results of this study indicate that time budget pressure has a negative and significant effect on audit quality; professionalism has a positive and significant effect on audit quality; auditor experience weakens the effect of time budget pressure on audit quality, and strengthens the influence of professionalism on audit quality; and job satisfaction weakens the effect of time budget pressure on audit quality, and strengthens the influence of professionalism on audit quality. Keywords: time budget pressure, professionalism, auditor experience, job satisfaction, audit quality


ZOOTEC ◽  
2020 ◽  
Vol 40 (2) ◽  
pp. 471
Author(s):  
Yudi P Sinulingga ◽  
N M Santa ◽  
L S Kalangi ◽  
M A.V Manese

ANALYSIS OF PIG LIVESTOCK BUSINESS INCOME IN TOMBULU DISTRICT MINAHASA REGENCY. The study was conducted in the Tombulu District of Minahasa Regency for one month from January 2020 to February 2020.The data used in this study were primary data and secondary data. The puposive sampling method was applied to determine the sample location in Tombulu District with the number of breeders in Tombulu District were 30 breeders. Therefore, the determination of the sample applied Total Quota Sampling technique. Pigs livestock business models run by breeders were breeding, fattening, combination, and swine pigs. The result showed models that the dominant pig livestock business in Tombulu District was a combination of breeding and fattening. The income earned from the pig livestock business is Rp.39,207,785 / period or Rp3,920,778 / month. The amount of production, feed costs, and social costs are factors that were very influential on the business income of pig livestock.


2020 ◽  
Vol 18 (2) ◽  
pp. 82
Author(s):  
Rosa Dwi Agsari

This study was conducted to examine the effect of Managerial Ownership, Profitability, Solvency and Company Size variables on Profit Management partially on property and real estate companies listed on the Indonesia Stock Exchange in the period 2013-2017. In addition, to examine the feasibility of a regression model of the influence of variable ownership variables Managerial, Profitability, Solvency and Company Size Management simultaneously on property and real estate companies listed on the Indonesia Stock Exchange in the period 2013-2017. This research was conducted on property and real estate companies on the Indonesia Stock Exchange for the period 2013-2017. The determination of the sample in this study uses a non-probability sampling method with a purposive sampling technique in order to obtain a total sample of 8 companies and a total of 40 observations. The data in this study were analyzed using panel data analysis techniques. The results showed that Managerial Ownership, Solvency and Company Size had no effect on Profit Management. Another variable in this study is that profitability has a positive and significant effect on earnings management. Simultaneously Managerial Ownership, Profitability, Solvency and Company Size Towards Profit Management. The predictive ability of the four variables on Profit Management is 22.84% as shown by the amount of Adjusted R-squared of 0.2284 while the remaining 77.16% is influenced by other factors not included in the research model.


2020 ◽  
Vol 4 (1) ◽  
pp. 64-76
Author(s):  
Atika Rosifa ◽  
Lia Suprihartini ◽  
Roni Kurniawan

This study aims to determine the effect of customer value on visitor satisfaction through visiting decisions, the influence of electronic word of mouth on visitor satisfaction through visiting decisions, the effect of customer value and electronic word of mouth partially on visiting decisions, the influence of customer value and electronic word of mouth partial to visitor satisfaction and the effect of visiting decisions on visitor satisfaction. Determination of the sample using the incidental sampling method, with the sampling technique using the Slovin formula to obtain 96 respondents. The analysis method used in this research is descriptive test, data quality test, classic assumption test, path analysis, and hypothesis testing. The results of the analysis in this study indicate that customer value partially has a significant effect on visitor satisfaction. Partially, electronic word of mouth has a significant effect on visitor satisfaction. Customer value partially has a significant effect on visiting decisions. Partially, electronic word of mouth has no significant effect on visiting decisions. The decision to visit is not able to mediate between customer value and visitor satisfaction and the decision to visit is also unable to mediate between electronic word of mouth and visitor satisfaction. Based on the research results, it is hoped that the new marjoly beach and resort can maintain and increase visitor satisfaction by paying attention to what factors can support customer value and electronic word of mouth.


Our knowledge of the scattering interactions in the pion-nucleon system has been developing rapidly during the past few years. For the π + p and π - p systems, total cross-section measurements have been extended upwards in energy to 20 GeV/c laboratory momentum. As Galbraith will report at this meeting, measurements of high precision have recently been carried out for π + p and π - p total cross-sections between 2·5 and 7GeV/c by Citron et al. (1964,1965) at Brookhaven. From these and earlier data, about ten excited nucleon states have become established, with mass values up to about 3200 MeV. These excited nucleon states are listed in table 1. In the resonance energy range, detailed angular distribution measurements have now been made up to the region of the fifth excited state ( N * 1/2 (2190)), and many of these new measurements will be reported at this meeting. The recent use of polarized proton targets has allowed a very direct means for the systematic and accurate study of the polarization properties of pion-nucleon scattering, and this technique has recently been exploited at the Nimrod accelerator of the Rutherford High Energy Laboratory at Chilton by the Murphy-Thresher group (Atkinson et al. 1966) for the determination of the spin and parity of the third and fourth resonance states, N * 1/2 (1688) and N * 1/2 (1920).


2012 ◽  
Vol 82 (20) ◽  
pp. 2099-2105 ◽  
Author(s):  
Urška Rabuza ◽  
Sonja Šostar-Turk ◽  
Sabina Fijan

Detecting microorganisms on textiles is useful for many purposes, for example to determine the bioburden before laundering, assess the reduction in bacterial counts in connection with various laundry processes, or trace transfer routes in infection control investigations. Therefore a validated, reproducible and rational method is needed. For sampling microorganisms on textile surfaces the most commonly used method is the contact plate method using RODAC plates, first described by Hall and Hartnett followed by the swab sampling technique. Both methods can only capture microorganisms on the surface of the textiles while microorganisms that have penetrated into the deeper structure of the material will not be detected. In our research the contact plate method and the swabbing technique were compared with two wash-off methods. For the first wash-off method the destructive elution method was used, where microorganisms were eluted from the fabrics by shaking the fabrics for a certain time in an elution medium. For the fourth sampling method a nondestructive method that included a compact test device called Morapex® was used, which is based on forced desorption by pressing the microorganisms through the fabric without destroying the fabric. In our research, two types of microorganisms were included ( Klebsiella pneumoniae and Staphylococcus aureus) that cause common nosocomial infections. The aim of this study was to compare the efficiency of the four sampling methods for detecting microorganisms on textiles and to determine the lowest concentration, which can still be detected. The percentage of microorganisms that were detected by both elution methods was substantially higher than by sampling of fabrics with the contact plate method or swabbing. It can be concluded that a nondestructive method using a modified Morapex® device can be applied for quick determination of the hygienic condition of textiles.


2003 ◽  
Vol 18 (22) ◽  
pp. 3841-3855 ◽  
Author(s):  
◽  
K. S. McFarland

The NuTeV collaboration has performed precision measurements of the ratio of neutral current to charged current cross-sections in high rate, high energy neutrino and anti-neutrino beams on a dense, primarily steel, target. The separate neutrino and anti-neutrino beams, high statistics, and improved control of other experimental systematics, allow the determination of electroweak parameters with significantly greater precision than past νN scattering experiments. Our null hypothesis test of the standard model prediction measures [Formula: see text], a value which is 3.0σ above the prediction. We discuss possible explanations for and implications of this discrepancy.


2018 ◽  
Vol 23 (3) ◽  
pp. 359
Author(s):  
Liliani Wijaya, Nuryasman MN

This search has a purpose to provide emperical evidence about factors that affect health of banks. The examine factors internal on this research are CAMELS and the examine factor external on this research is Gross Domestic Product (GDP). The sample consist of 29 banks.Object of this study is the commercial banks operating in Indonesia in 2012-2015. Determination of sampling technique using purposive sampling method in which the sample is taken with certain criteria. Because the data is used are secondary datawith a quantitative approach, it is necessary to determine the accuracy of the model on some assumption of hypothesis testing using Stata tools. The result showed a partial variable NPL and IER are significant effect on the level of health. While variable CAR, NPM, ROA, LDR, and GDP insignificant effect of the health of the bank. During the period 2012-2015 there were more than 50% showed a stable bank or banks that are in the tittle of “Fit”. Although they are some banks that have increased and decreased to earn the tittle of “unhealthy” for 4 periods.


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