Fuzzy functional dependency (FFD) is a kind of semantic knowledge and can be discovered from a large volume of business data. Sectional FFD and Attribute FFD are discussed so as to reflect semantics of the business world and express useful information that is natural for people to comprehend. The experimental results on an insurance data set show that the proposed method can extract knowledge e...

This study discusses the deformation mechanisms active during high temperature compression tests of Ni-base superalloy ATI 718Plus®. Deformation twins were observed in deformed grains across a range temperatures and strain rates by use transmission electron microscopes (TEM). Even at as low 0.01 s?1 up to 1025?C microstructure contained which twinning. It was concluded that stacking fault energ...

Let $D=(V,A)$ be a finite simple directed graph. A function$f:Vlongrightarrow {-1,0,1}$ is called a twin minus dominatingfunction (TMDF) if $f(N^-[v])ge 1$ and $f(N^+[v])ge 1$ for eachvertex $vin V$. The twin minus domination number of $D$ is$gamma_{-}^*(D)=min{w(f)mid f mbox{ is a TMDF of } D}$. Inthis paper, we initiate the study of twin minus domination numbersin digraphs and present some lo...

Understanding the grain boundary deformation dynamics is very crucial to designing materials with stable microstructures. With this quest, behavior of coherent twin under cyclic shear loading has been studied in α-Fe using molecular simulations understand influence strain amplitude and temperature. Twin exhibited coupled migration along irreversibility character at lower temperatures gained alm...

Abstract Twin-wall structures can be cooled both externally and internally, raising great potential for use in high-temperature applications. However, their increased geometric complexity imposes a range of failure mechanisms consideration design. The primary aim this study is to identify the nature such by constructing Bree type interaction diagrams idealized double-wall systems under cyclic t...

twin reversed arterial perfusion (trap) sequence is a syndrome with poor prognosis, seen only in monochorionic monozygotic twin pregnancies. the incidence is one in 35.000 births and one in 100 monozygotic twin pregnancies. it is characterized with a recipient fetus exhibiting lethal anomalies including acardia and a pump fetus. mortality is usually due to heart failure or premature labor cause...