CONCERNING CAUSES OF FAILURE OF MULTIJET SPRAYERS

2020 ◽  
Vol 4 (67) ◽  
pp. 122-128
Author(s):  
Vladimir D. Burdykin ◽  
◽  
Viktor V. Sheredekin ◽  
Valeriy V. Ostrikov ◽  
Sergey N. Sazonov ◽  
...  
Keyword(s):  
1906 ◽  
Vol 61 (1578supp) ◽  
pp. 25282-25283
Author(s):  
O. U. Miracle

1995 ◽  
Vol 109 (8) ◽  
pp. 710-712 ◽  
Author(s):  
T. R. Kapur

AbstractForty cases of failed combined approach tympanoplasty were analysed. The commonest cause of failure was adhesions between the facial ridge and the tympanic membrane, causing segmental attico-mastoid malaeration in 51.3 per cent of cases followed-up continually. Other causes were, large dermoids, incomplete removal of squamous epithelium, and eustachian tube obstruction. Eustachian tube dysfunction did not appear to be a major cause of failure.


Author(s):  
Tilahun Y ◽  
◽  
Mesfin G ◽  

Aluminum is a metal matrix material which is widely used in different industrial as well as engineering applications.it has a great advantage due to its remarkable properties like less density, formability, and light in weight, recyclability and other properties. but, failure of aluminum matrix materials are the main problems in aluminum industries now a days.in this review role of aluminum and its alloys as matrix materials, their failure modes, causes of failure and optimization techniques to minimize this failure modes and causes of failure are discussed. Sources are reviewed which are from 2005 to recent one. Consequently, most modes of failure, causes of failure and most optimization techniques of aluminum and its alloy matrix materials are found. most modes of failure are mechanical related like fatigue failure, surface cracking, ductile failure, porosity formation, and stress related like stress corrosion cracking, surface weakness due to repeated stresses and other factors are summarized.in causes of failure mostly like corrosion formation, wear formation and poor mechanical properties are discussed.


2021 ◽  
pp. 096228022110370
Author(s):  
Seungbong Han ◽  
Kam-Wah Tsui ◽  
Hui Zhang ◽  
Gi-Ae Kim ◽  
Young-Suk Lim ◽  
...  

Propensity score matching is widely used to determine the effects of treatments in observational studies. Competing risk survival data are common to medical research. However, there is a paucity of propensity score matching studies related to competing risk survival data with missing causes of failure. In this study, we provide guidelines for estimating the treatment effect on the cumulative incidence function when using propensity score matching on competing risk survival data with missing causes of failure. We examined the performances of different methods for imputing the data with missing causes. We then evaluated the gain from the missing cause imputation in an extensive simulation study and applied the proposed data imputation method to the data from a study on the risk of hepatocellular carcinoma in patients with chronic hepatitis B and chronic hepatitis C.


1969 ◽  
Vol 3 (3) ◽  
pp. 3-19
Author(s):  
Chaim Adler

This article deals with the issue of educational versus social integration. It attempts to analyze the historic and social motives of the Israeli elite in delegating to education an important role in the social integration of ethnically different groups. A distinction between two main groups of factors responsible for these students’ failure in school are made: (1) causes of failure directly related to a state of disadvantage; (2) causes of failure stemming from the nature of modern school. The article concludes with a discussion of the measures employed by the Israeli school system to reduce this failure and offers a set of additional measures.


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