Local defect detection in bearings in the presence of impulsive noise and spectral overlapping of informative and non-informative impulses

Predictive maintenance has been pointed out as one of the key elements of industry 4.0 philosophy. Measurement of diagnostic signals and advanced analytics allow to detect damage, identify its type, localize it in the machine, and even make some prognosis of remaining life. The efficiency of diagnostic procedures depends on […]

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Relaxation-oscillations in a conceptual climate model

Conceptual climate models are relatively simple mathematical constructs that can capture essential features of the nonlinear nature of the climate. They usually focus only on several ingredients of the physical description and model their interplay. As can be easily noticed, due to their simplicity, they cannot be used as computation […]

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Approximate solutions and numerical analysis of a spring-mass running model

My name is Zosia Wróblewska and I have just got a master’s degree in Applied Mathematics at Wrocław University of Science and Technology. My speciality is Mathematics for Industry and Commerce. During my studies I had a one semester exchange in Portugal at Técnico Lisboa as an Erasmus student. I chose […]

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Impact of solar activity on precipitation in the United States

For many years scientists have tried to understand the complicated mechanisms governing Earth’s climate. It is known to have always been changing under influence of multiple endogenous processes (e.g. volcanic activity) and exogenous factors (e.g. human influence). Astrophysicists hypothesise that some of the patterns noticed in climatological data can be […]

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Bifurcations and destabilising feedback loops in multiple-scale switched control systems

Dynamical systems which are characterized by switchings between a number of distinct differentiable vector fields, with the switching law that depends on the value of some state variable, are common in applications. For example, some mathematical models and investgations of the character of neuromuscular control during tasks such as quiet […]

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Joint meeting of the Italian Mathematical Union, the Italian Society of Industrial and Applied Mathematics and the Polish Mathematical Society

Joint meeting of the Italian Mathematical Union, the Italian Society of Industrial and Applied Mathematics and the Polish Mathematical Society (http://umi-simai.ptm.org.pl/) was held at the University of Wroclaw and Wroclaw University of Science and Technology on 17-20 September 2018. The conference was the next of a series of bilateral meetings […]

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Local damage detection related to a gearbox operating in industrial conditions

The problem of local damage detection is widely discussed in the literature. There are many methods which can be applied, however there is still a need for new techniques addressing specific diagnostic issues. In particular, the case of complex multiple-component vibration signal is a challenging problem. In this case we […]

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One million electric vehicles in Poland – insights from an agent-based model

In agent-based modeling (ABM), a (usually) complex system is modeled as a collection of autonomous entities called agents. Agents interact with each other and their environment, asses their situation and make decisions based on some given set of rules. Those decisions may then trigger different actions of the entities. In […]

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One million electric vehicles in Poland – insights from an agent-based model

In agent-based modeling (ABM), a (usually) complex system is modeled as a collection of autonomous entities called agents. Agents interact with each other and their environment, asses their situation and make decisions based on some given set of rules. Those decisions may then trigger different actions of the entities. In […]

Read more

Local damage detection related to a gearbox operating in industrial conditions

The problem of local damage detection is widely discussed in the literature. There are many methods which can be applied, however there is still a need for new techniques addressing specific diagnostic issues. In particular, the case of complex multiple-component vibration signal is a challenging problem. In this case we […]

Read more
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