Abstract: In a paper by Willems et al., it was shown that persistently exciting data can be used to represent the input-output behavior of a linear system. Based on this fundamental result, we derive ...

Brittany Brown is a full-time copywriter writing covering real estate and personal finance topics like budgeting, investing, credit cards, and more. She is currently working to become an accredited ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Abstract: Cylindrical magnetic nanowires (NWs) feature unique properties, which make them attractive for fundamental research and novel applications. These 1-D structures introduce a pronounced shape ...

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See yourself as others see you in this cylindrical mirror. A flat mirror will always reflect an image that's right side up and reversed right to left. A cylindrical mirror can produce images that are ...