Correlation

Ebook Elementary statistics: A step by step approach (Eighth edition) - Part 2 presents the following content: Chapter 8 - hypothesis testing; chapter 9 - testing the difference between two means, two proportions, and two variances; chapter 10 - correlation and regression; chapter 11 - other chi-square tests; chapter 12 - analysis of variance; chapter 13 - nonparametric statistics; chapter 14 - sampling and simulation.

505p runthenight04 04-01-2023 11 3   Download

The general aim of the book is to give a thorough grounding in basic Mathematical and Statistical techniques to students of Business and Professional studies. No prior knowledge of the subject area is assumed. In this "Ebook Business mathematics and statistics (6th ed): Part 1", the following content will be discussed: Part 1 data and their presentation; part 2 statistical measures; part 3 regression and correlation; part 4 time series analysis; part 5 index numbers; part 6 compounding, discounting and annuities.

344p runthenight04 04-01-2023 11 4   Download

We describe the synthesis, characterization and catalytic properties of a series of hybrid materials composed of inorganic plasmonic mono- and bimetallic nanoparticles supported on organic bio-based hydrogel beads. The bimetallic materials showed a localized surface plasmon resonance in the visible region, with a maximum light absorption correlated to the metal composition of the alloyed systems.

10p vihermione 30-12-2022 9 1   Download

We propose a novel approach relied on high-resolution solid-state 13C NMR spectroscopy to quantify the crystallinity index of chitosans (Ch) prepared with variable average degrees of acetylation (DA) from 5% to 60 % and average weight molecular weight (Mw) ranged in 0.15 × 106 g mol− 1 –1.2 × 106 g mol− 1 .

14p viginny 30-12-2022 6 1   Download

Article "The correlation between assessment and teaching in students’ English language proficiency" perspectives on the importance of giving an appropriate assessment based on curriculum content and individual capacity for effectiveness in students’ English using. To achieve language proficiency goals, it is more important to find out strengths and weaknesses that arise from each individual student rather than basing on those of large numbers of students.

6p lieuyeuyeu18 23-12-2022 12 1   Download

The study "Estimation of the electrical characteristics of PIN diode after Proton-Irradiated based on Monte carlo code" describes the correlation between radiation damages and electrical properties of the PIN diode after irradiation of the energy proton. The findings show that the penetration of protons into the PN diode leads to lattice defects in the form of vacancies, defect clusters, and dislocations.

18p lieuyeuyeu18 23-12-2022 3 1   Download

This paper presents an extension to a point kinetics model of fissile solution undergoing a transient through the development and addition of correlations which describe neutronics and thermal parameters and physical models.

9p vironald 15-12-2022 4 1   Download

Many materials used in a wide range of fields consist of polymers that feature great structural complexity. One particularly suitable technique for characterising these complex polymers, that often feature correlated distributions in e.g. microstructure, chemical composition, or molecular weight, is comprehensive two-dimensional liquid chromatography (LC × LC).

10p viginny 23-12-2022 9 1   Download

Comprehensive two-dimensional liquid chromatography (LC × LC) is an attractive separation technique that allows achieving high peak capacities and information on chemical correlations. Unfortunately, its application in industrial practice is still not widespread due to limiting factors such as complex method development, tedious method optimization and solvent-incompatibility.

12p viginny 23-12-2022 11 2   Download

The Tohoku earthquake (Mw9.0) occurred on March 11, 2011 and caused a large tsunami. The Fukushima Daiichi Nuclear Power Plant with six units were overwhelmed by the tsunami and core damage occurred. Authors proposed the concept and method for evaluating core damage frequency (CDF) considering failure correlation at the multi units and sites.

16p vironald 15-12-2022 4 1   Download

Helium is relevant in determining nuclear fuel behaviour. It affects the performance of nuclear fuel both in reactor and in storage conditions. Helium becomes important in reactor conditions when high burnups are targeted or MOX fuel is used, whereas for storage conditions it can represent a threat to the fuel rods integrity.

7p vironald 15-12-2022 6 1   Download

Helium plays an important role in determining nuclear fuel performance both in-pile (especially for MOX fuels and those at high burnup) and in storage conditions. Predictive models of helium behaviour are therefore a fundamental element in fuel performance codes.

5p vironald 15-12-2022 2 1   Download

E′ and Al-hole centres are some of the most common and abundant paramagnetic defects in sedimentary quartz. Here we investigate the dose dependence of these defects before and after exposure to light by electron spin resonance (ESR).

6p vironald 15-12-2022 6 1   Download

Tephras are significant markers in the stratigraphic record and play a key role in establishing paleoenvironmental and paleoclimate histories worldwide. Despite burgeoning research focused on tephra characterization and correlation techniques, there are still few techniques that allow for the direct dating of tephra, particularly below the lower age limit of K/Ar and Ar/Ar dating methods.

11p vironald 15-12-2022 4 1   Download

The present work reports an extended study of anomalous fading (AF) in the TL signal of ten different pure Kfeldspar samples from North Greece. A fading protocol was applied, including a standard series of TL measurements undertaken following a variety of storage times after irradiation, in order to plot the luminescence output as a function of storage time.

7p vironald 15-12-2022 1 1   Download

The 31P MAS NMR spectra of phosphorus-modified chabazite (P-CHA) zeolites have been observed during the hydrothermal treatment to probe the structural changes of phosphorus species in zeolites. Characteristic changes of the spectra were observed in the range of 27 ~ 42 ppm, which correlates to the hydrothermal structure changes in P-CHA zeolite

12p vironald 15-12-2022 4 1   Download

In this study, we present a method for all-optical image compression using all-optical Karhunen-Loeve transform (KLT). The KLT was designed in all-optical domain using only one multimode interference (MMI) coupler. The Karhunen-Loeve transform (KLT) is very attractive for image processing applicaons due to its computing efficiency, residual correlation, and rate distortion criteria benefits.

9p viharry 15-12-2022 3 1   Download

Data processing for obtaining global velocity fields is important in fluid mechanics. This study presents a hybrid algorithm for extracting velocity vectors from particle image velocimetry (PIV) images, which were taken during the experimental process. The hybrid method used both cross-correlation and optical-flow algorithms.

9p viharry 15-12-2022 1 1   Download

Micro-level statistics on child undernutrition are highly prioritized by stakeholders for measuring and monitoring progress on the sustainable development goals. In this regard district-representative data were collected in the Bangladesh Multiple Indicator Cluster Survey 2019 for identifying localised disparities.

21p viferrari 28-11-2022 8 1   Download

Improved knowledge regarding socio-demographic correlates of people with substance use disorders (SUDs) is essential to better plan and provide adequate services for SUD patients and their families, and to improve our understanding of the complex mechanisms underlying progression into and development of various SUDs.

12p viferrari 28-11-2022 3 1   Download