Temperature as a Reliability Factor

2020 ◽  
pp. 1-12
Author(s):  
Pradeep Lall ◽  
Michael G. Pecht ◽  
Edward B. Hakim
Keyword(s):  
Reliability Factor

Development and Psychometric Evaluation of a Revised Sense of Coherence Scale

2018 ◽  
Vol 34 (3) ◽  
pp. 206-215 ◽  
Author(s):  
Rahel Bachem ◽  
Andreas Maercker
Keyword(s):  
Posttraumatic Growth ◽  
Factor Structure ◽  
Sense Of Coherence ◽  
Psychological Health ◽  
Psychometric Evaluation ◽  
Health Indicators ◽  
Structure Stability ◽  
Confirmatory Factor Analyses ◽  
Reliability Factor ◽  
Two Samples

Abstract. The present study introduces a revised Sense of Coherence (SOC) scale, a new conceptualization and operationalization of the resilience indicator SOC. It outlines the scale development and aims for testing its reliability, factor structure, and validity. Literature on Antonovsky’s SOC (SOC-A) was critically reviewed to identify needs for improving the scale. The scale was investigated in two samples. Sample 1 consisted of 334 bereaved participants, Sample 2 of 157 healthy controls. The revised SOC Scale, SOC-A, and theoretically relevant questionnaires were applied. Explorative and confirmatory factor analyses established a three-factor structure in both samples. The revised SOC Scale showed significant but discriminative associations with related constructs, including self-efficacy, posttraumatic growth, and neuroticism. The revised measure was significantly associated with psychological health indicators, including persistent grief, depression, and anxiety, but not to the extent as the previous SOC-A. Stability over time was sufficient. The study provides psychometric support for the revised SOC conceptualization and scale. It has several advantages over the previous SOC-A scale (unique variance, distinct factor structure, stability). The scale could be used for clinical and health psychological testing or research into the growing field of studies on resilience over the life span.

scholarly journals Fault Coverage-Aware Metrics for Evaluating the Reliability Factor of Solar Tracking Systems

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 1074
Author(s):  
Raul Rotar ◽  
Sorin Liviu Jurj ◽  
Flavius Opritoiu ◽  
Mircea Vladutiu
Keyword(s):  
High Performance ◽  
Computation Time ◽  
Fault Coverage ◽  
Programming Environment ◽  
Tracking Systems ◽  
Circuit Testing ◽  
Reliability Factor ◽  
Solar Tracking ◽  
Mathcad Software ◽  
Python Programming

This paper presents a mathematical approach for determining the reliability of solar tracking systems based on three fault coverage-aware metrics which use system error data from hardware, software as well as in-circuit testing (ICT) techniques, to calculate a solar test factor (STF). Using Euler’s named constant, the solar reliability factor (SRF) is computed to define the robustness and availability of modern, high-performance solar tracking systems. The experimental cases which were run in the Mathcad software suite and the Python programming environment show that the fault coverage-aware metrics greatly change the test and reliability factor curve of solar tracking systems, achieving significantly reduced calculation steps and computation time.

Structures and Phase Transitions of the A 7PSe6 (A = Ag, Cu) Argyrodite-Type Ionic Conductors. I. Ag7PSe6

1998 ◽  
Vol 54 (4) ◽  
pp. 376-383 ◽  
Author(s):  
M. Evain ◽  
E. Gaudin ◽  
F. Boucher ◽  
V. Petricek ◽  
F. Taulelle
Keyword(s):  
Phase Transition ◽  
Atomic Displacement ◽  
Ionic Conductors ◽  
Reliability Factor ◽  
Conducting Phase ◽  
Cubic Symmetry ◽  
Space Group ◽  
Ionic Conducting ◽  
Jahn Teller ◽  
Diffusion Paths

The crystal structures of the two polymorphic forms of the argyrodite Ag7PSe6 compound are analysed by means of single-crystal X-ray diffraction. Above the phase transition at 453 K leading to the ionic conducting phase, γ-Ag7PSe6 crystallizes in cubic symmetry, space group F4¯3m, with a = 10.838 (3) Å, V = 1273.1 (12) Å3 and Z = 4 at 473 K. The refinement of the 473 K structure leads to a reliability factor of R = 0.0326 for 192 independent reflections and 33 variables. Diffusion paths for silver d 10 ions are evidenced by means of a combination of a Gram–Charlier development of the atomic displacement factors and a split model. Below the phase transition β-Ag7PSe6 crystallizes again in cubic symmetry, but with the space group P213 and a = 10.772 (2) Å, V = 1250.1 (6) Å3 and Z = 4 at room temperature. The refinement of the 293 K structure leads to a reliability factor of R = 0.0267 for 1125 independent reflections and 68 variables. In the β-Ag7PSe6 ordered phase the silver cations are found in various sites corresponding to the most pronounced probability density locations of the high-temperature diffusion paths. Those positions correspond to low coordination (2, 3 and 4) sites, in agreement with the silver preference for such environments. In addition, the Ag atoms are found slightly displaced from the true linear, triangular or tetrahedral coordination, as expected from second-order Jahn–Teller effects.

ANALISIS KEPUASAN KONSUMEN PT. KALTRABU INDAH BANJARMASIN

2020 ◽  
Vol 4 (4) ◽  
pp. 523-537
Author(s):  
Rahmat Hilmi ◽  
Anthonius Karsudjono
Keyword(s):  
Customer Satisfaction ◽  
Consumer Satisfaction ◽  
Sample Selection ◽  
Reliability Factor ◽  
Physical Evidence ◽  
Decision Variables ◽  
The Social ◽  
Independent Variable ◽  
Influential Variable ◽  
Processing Techniques

The purpose of this study was to determine the effect of the independent variable Service Quality consisting of Physical Evidence, Reliability, Responsiveness, Assurance and Empathy both simultaneously and partially on the dependent variable Consumer Satisfaction. And want to know the dominant variables that affect Consumer Satisfaction. The data used is the result of distributing questionnaires to respondents who used the services of PT. Kaltrabu Indah Banjarmasin. The sample selection technique is Accindental Sampling with a total of 60 consumers. Data processing techniques using SPSS (Statistical Package for the Social Sciences). The results showed that simultaneously the variables Physical Evidence, Reliability, Responsiveness, Assurance and Empathy had a significant effect on the purchasing decision variables of PT. Kaltrabu Indah Banjarmasin Branch of 25,515. Partially only the Reliability variable 3,177 (Sig.0,002), Guarantee 2,340 (Sig. 0,023) and Empathy 2,661 (0,010) affect the customer satisfaction of PT. Kaltrabu Indah Banjarmasin. While the Physical Evidence variable 1.983 (Sig. 0.053) and Responsiveness 0.901 (Sig.0.372) did not significantly influence the consumer satisfaction of PT. Kaltrabu Indah Banjarmasin. The dominant influential variable is Reliability with a Standardized Coefficients Beta value of 0.415, meaning that according to consumers' perception the reliability factor becomes something that is considered very important in an effort to create customer satisfaction when using the services of PT. Kaltrabu Indah Banjarmasin. Referring to the terminated Coefficient (R Square) of 0.703, the customer satisfaction of PT. Kaltrabu Indah Banjarmasin of 70.3% is influenced by physical evidence, reliability, responsiveness, assurance and empathy variables. While the remaining 29.7% of customer satisfaction is influenced by other variables not included in this study.

scholarly journals Highly Reliable Decision-Making Using Reliability Factor Feedback for Factory Condition Monitoring via WSNs

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Zafar Iqbal ◽  
Heung-No Lee ◽  
Saeid Nooshabadi
Keyword(s):  
Decision Making ◽  
Power Consumption ◽  
Cluster Head ◽  
Base Station ◽  
False Alarms ◽  
Delivery Ratio ◽  
Probability Of Error ◽  
Reliability Factor ◽  
Packet Delivery ◽  
Low Level

Cooperation among sensors in a wireless sensor network, deployed for industrial monitoring in an indoor scenario, is a topic of interest in the smart factory and smart city research. The indoor wireless communication channel is very harsh and the observations of all the sensors cannot be sent reliably to the base station. Failure to transmit correct sensing results to the base station may result in false alarms or missed detection of events. Therefore, we propose a cooperation scheme for the wireless sensors to send the data reliably to the base station. Our aim is to increase the reliability of the received information, reduce the probability of error, lower the overall power consumption, and keep the latency to an acceptable low level. We propose a reliability factor feedback algorithm to adjust the weight of unreliable sensors in the decision-making process. The proposed scheme is analyzed based on its latency, power consumption, and packet delivery ratio. Our results show significant improvement in the reliability of the received data, improved packet delivery, and reduced false alarm ratio for full repetition and cluster head-based cooperation. The power consumption and latency in data transmission are also kept to an acceptable low level.

Validation of the Arabic Version of the Oxford Happiness Inventory Among Undergraduates in Kuwait

2017 ◽  
Vol 41 (S1) ◽  
pp. S255-S255
Author(s):  
B. Alansari ◽  
T. AlAli
Keyword(s):  
Internal Consistency ◽  
Convergent Validity ◽  
Satisfaction With Life ◽  
Satisfaction With Life Scale ◽  
Arabic Version ◽  
Cronbach’S Alpha ◽  
Reliability Factor ◽  
Life Orientation Test ◽  
Cronbach's Alpha ◽  
Oxford Happiness Inventory

IntroductionThe Oxford Happiness Inventory (OHI) 29-Item, each involving the selection of four options that are different for each item. Although there is an Arabic version, it is not identical to the original version in terms of the number of items and response.Objectivesto evaluate the psychometric properties of the Arabic adaptation OHI and its factorial structure in undergraduate sample.MethodsThe participants were 720 first year undergraduate Kuwaitis: 360 males mean age = 20.38 ± 1.60 and 360 females; mean age = 19.71 ± 1.39 (t = 5.87, P < 0.001). The Arabic version of OHI (Argyle, Martin, & Crossland) was administered to participants. The internal consistency reliability, factor structure, and convergent validity of the OHI with Life Orientation Test (LOT-R, Adult Hope Scale (AHS), Satisfaction With Life Scale (SWLS) were assessed as well as divergent validity of the OHI with Beck Depression Inventory-II (BDI-II)ResultsInternal consistency was satisfactory for the OHI (Cronbach's alpha = 0.87) for males and (Cronbach's alpha = 0.86) for females. The results revealed no significant gender differences on happiness (F = 1.77, P > 05). Principal component analyses (PCA) showed that a seven-component solution explains %50.50 of the total variance for males and 51.47% for females. The OHI positively correlates with the following variables: SWLS (r = .52), LOT-R (r = 0.56) AHS (r = .48) while the OHI correlates negatively with BDI-II (r = -54).ConclusionsFindings confirm that the OHI provides satisfactory validation, and thus it can be recommended as a measure of happiness among Arab samples.Disclosure of interestThe authors have not supplied their declaration of competing interest.

scholarly journals Redetermination of the crystal structure of ThI4

IUCrData ◽  
2018 ◽  
Vol 3 (2) ◽  
Author(s):  
H. Lars Deubner ◽  
Florian Kraus
Keyword(s):  
Crystal Structure ◽  
Single Crystals ◽  
Coordination Number ◽  
Coordination Polyhedron ◽  
Lattice Parameters ◽  
Structure Model ◽  
Reliability Factor ◽  
Thorium Dioxide

Single crystals of ThI4, thorium(IV) tetraiodide, were grown from thorium dioxide and aluminium triiodide. In comparison with the structure model reported previously for this compound [Zalkinet al.(1964).Inorg. Chem.3, 639–644], we have determined the lattice parameters and fractional coordinates to a much higher precision, also leading to a better reliability factor (R= 0.029versus0.09). The coordination number of the ThIVatom is eight. Its coordination polyhedron has the shape of an irregular square antiprism. The I atoms each bridge two ThIVatoms, resulting in the formation of infinite layers parallel to (-101) that can be described with the Niggli formula2∞[ThI6/2I2/2].

scholarly journals Preparation and Characterisation of PVdF-LiBOB-Based Solid Polymer Electrolyte

2016 ◽  
Vol 1 (1) ◽  
Author(s):  
Christin Rina Ratri
Keyword(s):  
Polymer Electrolyte ◽  
Solid Polymer Electrolyte ◽  
Lithium Ion ◽  
Solid Polymer ◽  
Liquid Form ◽  
Host Matrix ◽  
Battery System ◽  
Reliability Factor ◽  
Safety And Reliability ◽  
Ft Ir

<p>Electrolyte plays a key role in lithium-ion battery system. Safety and reliability factor was the main background of the development of solid polymer electrolyte as a substitute the conventional electrolyte in liquid form. Preparation and characterisation of a polymer electrolyte system based on lithium bis(oxalato) borate or LiBOB salt and PVdF as the host matrix has been performed. LiBOB salt and PVdF polymer were dissolved in DMAC solvent followed by solid polymer electrolyte forming by means of doctor blade method. The membranes obtained were characterised by FT-IR, XRD, and EIS. It was shown that the electrolyte exhibited higher room ionic conductivity with the increase of salt concentration, with highest conductivity value of 1.22 × 10<sup>-6</sup> Scm<sup>-1</sup> for 70% LiBOB concentration.</p><p><strong> </strong></p>

scholarly journals Service Quality Analysis of Banks in Rajasthan Post Financial Inclusion Program

2021 ◽  
Vol 18 ◽  
pp. 396-401
Author(s):  
Shailja Khanduri
Keyword(s):  
Service Quality ◽  
Service Sector ◽  
Banking Sector ◽  
Financial Inclusion ◽  
Quality Analysis ◽  
Indian Government ◽  
Public And Private ◽  
Reliability Factor ◽  
Indian Banks ◽  
Public And Private Sector

This study applies SERVQUAL analysis to measure the service quality offered by Indian banking sector in the Indian state of Rajasthan. This study was performed 5 years after the launch of national mission for financial inclusion by Indian government. Both the public and private sector banks were incorporated in the study. Respondents are mostly from the urban background spread over various cities in Rajasthan. The dimensions studied are tangibility, reliability, responsiveness, assurance and empathy. The average SERVQUAL score was found to be -0.189 and the results reveal about 95.22% customers’ expectations were met. The empathy factor satisfying customers’ expectations (99.28%) shows the tremendous quality of personal handling in Indian banks service sector, while the lowest score on the reliability factor (89.63%) gives an idea of customer’s concerns regarding reliability of services in Indian banking sector. Overall, the present study finds that Indian urban banks average performance vis-à-vis the five service quality dimensions is quite satisfactory

Structure refinement of an FeCl3 crystal using a thin plate sample

1989 ◽  
Vol 22 (2) ◽  
pp. 173-180 ◽  
Author(s):  
S. Hashimoto ◽  
K. Forster ◽  
S. C. Moss
Keyword(s):  
Thin Plate ◽  
Structure Refinement ◽  
Reliability Factor ◽  
Space Group ◽  
Hexagonal Axis ◽  
Cl Atoms

Positional parameters (x, y, z) and anisotropic Debye–Waller factors B ⊥ (normal to the xy plane) and B|| (parallel to the xy plane) have been determined for the Fe and Cl atoms in FeCl3 within the space group R{\bar 3} with a = 6.065, c = 17.42 Å. These are (0, 0, 1/3), B Fe⊥ = 1.75 and B Fe|| = 1.2 Å2 for the Fe atoms at 6(c) positions in the hexagonal-axis representation, and (0.358, 0, 0.078), B Cl⊥ = 1.6 and B Cl|| = 1.55 Å2 for the Cl atoms at 18(f) positions. In addition to the crystallographic parameters, the observed twinning is discussed using the possible variants of ABC and ACB stacking sequences, each of which has two variants with a 60° rotation of the chlorine lattice. One of the four twin variants is found to be strongly enhanced. The fit for these parameters yields a reliability factor R = \sum_{i} \parallel F^{i}_{\rm cal} \mid - \mid F^{i}_{\rm obs}\parallel / \sum_{i} \mid F^{i}_{\rm obs} \mid = 0.60.

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