In this paper, ultrasonic vibration–assisted electrical discharge machining (UEDM) is used to process SiCp/Al composite materials in order achieve a higher material removal rate (MRR) and lower surface roughness, width overcut, relative tool wear (RTWR). On the basis of studying erosion mechanism EDM material, flow field simulation study was carried out using FLUENT software. The results gap sh...

Many, if not most network analysis algorithms have been designed specifically for single-relational networks; that is, networks in which all edges are of the same type. For example, edges may either represent “friendship,” “kinship,” or “collaboration,” but not all of them together. In contrast, a multi-relational network is a network with a heterogeneous set of edge labels which can represent ...

the vehicle braking system is considered to be one of the most fundamental safety-critical systems in modern vehicles, as its main purpose is to stop or decelerate the vehicle. the frictional heat generated during braking application can cause numerous negative effects on the brake assembly, such as brake fade, premature wear, thermal cracks and disc thickness variation. in the past, surface ro...

the purpose of this study is to survey cross section changes of the animal brain samples during the tension and compression tests and comparison of the experimental results for three animals: bovine, sheep, and rabbit. a linear elastic theory with considering the necking in tension and barreling in compression has been considered for brain tissue. bridgman method for tension and cross section u...

In recent years, with the increasing impact of extreme weather events on energy security, vulnerability has increased significantly, and more international institutions departments have begun to incorporate resilience governance into security. This paper focuses China’s inter-provincial security assessment. Compared existing relevant research, significant features our work are (i) introducing c...

Programs in hard real-time systems have to satisfy non-functional constraints, such as timing constraints, beyond their functional requirements. The static analysis that derives bounds on the execution times has to take into account the components of the underlying hardware platform, such as caches and pipelines, in order to derive tight bounds on the execution times. Static cache analysis clas...

Relational discriminant analysis is based on a proximity description of the data. Instead of features, the similarities to a subset of the objects in the training data are used for representation. In this paper we will show that this subset might be small and that its exact choice is of minor importance. Moreover, it is shown that linear or non-linear methods for feature extraction based on mul...

Given a binary relation R, we look for partitions of its row set and its column set, respectively, that behave well with respect to selected algebraic properties, i.e., correspond to congruences related to R. Permutations are derived from these congruences that allow to rearrange R visualizing the decomposition.

In service-oriented computing, correlations are used to determine links between service providers and users. A correlation contains values for some variables received in a communication. Subsequent messages will only be received when they match the values of the correlation. Correlations allow for the implementation of sessions, local shared memory, gradually provided input, or input provided i...