Results 31 to 40 of about 45,359 (268)

Does the Tax Cuts Policy Lower Firm Survival Risk? Evidence from China [PDF]

open access: yesE3S Web of Conferences, 2023
This paper examines the effect of tax cuts policy on firm survival risk. We analyze a panel data of China’s listed companies over the period 20082021 based on two different techniques: Kaplan-Meier survival estimator and the Cox proportional hazards ...
Wang Hong   +3 more
doaj   +1 more source

A New Family of Extended Lindley Models: Properties, Estimation and Applications

open access: yesMathematics, 2020
There are many proposed life models in the literature, based on Lindley distribution. In this paper, a unified approach is used to derive a general form for these life models.
Abdulrahman Abouammoh, Mohamed Kayid
doaj   +1 more source

Comparison of maintenance scheme effects on power transformer reliability performance

open access: yesIngeniería e Investigación, 2015
Power transformer failures have a significant impact on electrical systems reliability, as they compromise the electricity delivery. Failures impact the operational cost of electric utilities as they endanger the accomplishment of power commitments ...
Ivan Camilo Duran Tovar   +3 more
doaj   +1 more source

Systematic Effectiveness Assessment Methodology for Fault Current Indicators Deployed in Distribution Systems

open access: yesEnergies, 2018
Fault Current Indicators (FCIs) with communication interfaces have been widely used in distribution systems to reduce fault-finding time. The effectiveness of a Fault Management System (FMS) composed of FCIs greatly depends on the performance of the ...
Jen-Hao Teng   +4 more
doaj   +1 more source

An Efficient Implementation of Fixed Failure-Rate Ratio Test for GNSS Ambiguity Resolution

open access: yesSensors, 2016
Ambiguity Resolution (AR) plays a vital role in precise GNSS positioning. Correctly-fixed integer ambiguities can significantly improve the positioning solution, while incorrectly-fixed integer ambiguities can bring large positioning errors and ...
Yanqing Hou, Sandra Verhagen, Jie Wu
doaj   +1 more source

An Innovative Model of Reliability—The Pseudo-Entropic Model

open access: yesEntropy, 2019
There is an entire field of literature on reliability models. Building reliability models is most frequently done by starting from the failure rate (or hazard rate). Creating a reliability model starts with the specific type of product behavior over time,
Irina-Maria Dragan   +1 more
doaj   +1 more source

Unacceptable failure of osteochondral glenoid allograft for biologic resurfacing of the glenoid

open access: yesJournal of Experimental Orthopaedics, 2021
Purpose Glenohumeral osteoarthritis (OA) represents a challenging problem in young, physically active patients. It was the purpose of this investigation to evaluate the results of a pilot study involving glenoid resurfacing with a glenoid allograft ...
Filippo Familiari   +2 more
doaj   +1 more source

Failure rates in introductory programming [PDF]

open access: yesACM SIGCSE Bulletin, 2007
It is a common conception that CS1 is a very difficult course and that failure rates are high. However, until now there has only been anecdotal evidence for this claim. This article reports on a survey among institutions around the world regarding failure rates in introductory programming courses.
Bennedsen, Jens   +1 more
openaire   +3 more sources

A Proactive Decision-Making Model for Evaluating the Reliability of Infrastructure Assets of a Railway System

open access: yesInformation
Railway infrastructure is generally classified as either fixed or movable infrastructure assets. Failure in any of the assets could lead to the complete shutdown and disruption of the entire system, economic loss, inconvenience to passengers and the ...
Daniel O. Aikhuele, Shahryar Sorooshian
doaj   +1 more source

Failure rate properties of parallel systems [PDF]

open access: yesAdvances in Applied Probability, 2020
AbstractWe study failure rate monotonicity and generalised convex transform stochastic ordering properties of random variables, with an emphasis on applications. We are especially interested in the effect of a tail-weight iteration procedure to define distributions, which is equivalent to the characterisation of moments of the residual lifetime at a ...
Milto Hadjikyriakou   +2 more
openaire   +4 more sources

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