Highly resolved solutions of partial differential equations are important in many areas of science and technology nowadays. Only adaptive mesh refinement methods reduce the necessary work sufficiently allowing the calculation of realistic problems. Blockstructured SAMR methods are well-suited for the time-explicit computation of large-scale dynamical problems, but still require parallelization ...

This Paper presents the orientation procedure for diagnosing the power quality problems in different fault occurring conditions by using Distribution STATCOM (DSTATCOM) with linear loads. Here the resistance switching is used to get the pure sinusoidal voltage compensation. This modelling and simulation of D-STATCOM is achieved by using pure sinusoidal Pulse Width Modulation Technique. The majo...

BACKGROUND In epidemiological studies on physical workloads and back complaints, among the important features in modelling dose-response relations are the measurement strategy of the exposure and the nature of the dose-response relation that is assumed. AIM To evaluate the effect of these two features on the strength of the dose-response relation between physical load and severe low back pain...

impact of the load representation upon a power system security assessment. This is done according to two important aspects: the adopted direction for the load increment and the dynamic models used to represent its behavior. The first aspect is tackled through an evaluation of contingencies, which is based on the system's load flow model for two load increment directions: the " traditional " app...

Introduction: Many different numerical approaches have been investigated in the past that are related to the topic of this research [1], but there seems to be an ever increasing need to model RF coils in real time, to better understand the field behaviour when an imaging sample is present. In this work the discrete numerical solution to Maxwell’s equation is investigated, with the aim of modell...

Abstract A rock bolt is a tendon which can be either rod or strand, installed in borehole to reinforce the surround mass and soil.

Abstract With the vigorous promotion of electric vehicles, burden brought by irregular charging large-scale loads to power grid is becoming increasingly prominent. Therefore, it necessary study orderly strategy vehicles. This paper briefly describes advantages introduces several types calculation methods loads, summarizes different scheduling strategies and their disadvantages, finally puts for...

The power generation with non-renewable energy sources has very harmful effects on the environment as well as these sources are depleting. On the other side the renewable energy sources are quite unpredictable source of power. The best trade-off is to use the combination of both kind of sources to make a hybrid system so that their individual power generation constraints can be overcome. The hy...

The difference in timing of point and diffuse phosphorus (P) delivery to a river produces clear differences in the P concentration-flow relationship. Point inputs decrease in concentration with increasing river flow, due to dilution of a relatively constant input, whereas diffuse (non-point) load usually increases with river flow. This study developed a simple model, based on this fundamental d...