Abstract: In this paper, we introduced response analysis and controlling the nonlinear vibration of van der pol duffing oscillator subject to parametric and external excitations by connecting the ...

Indicator species are living organisms that tell us that something has changed or is going to change in their environment. They can be easily observed, and studying them is considered a cost-effective ...

From the Department of Bizarre Anomalies: Microsoft has suppressed an unexplained anomaly on its network that was routing traffic destined to example.com—a domain reserved for testing purposes—to a ...

Nathan Reiff has been writing expert articles and news about financial topics such as investing and trading, cryptocurrency, ETFs, and alternative investments on Investopedia since 2016. Robert Kelly ...

In Sarah Yuska’s sixth-grade science class at Monocacy Middle School in Frederick, Maryland, students are just finishing up learning about body systems—respiratory, circulatory, skeletal, and so on.

Capital includes assets like cash, machinery, and patents used to create value. Businesses acquire capital through equity, debt, or retaining earnings. Capital investment decisions are based on the ...

Anna Nordseth is an ecology writer and Duke University Ph.D. candidate specializing in tropical forest ecology, conservation research, and biodiversity. Boreal forests, or taiga, are found between 50 ...

The investigated integrators will be as follows: ode45 for a nonstiff example, and ode15s for a stiff example. Finally, a 3D animation will be included to aid in analyzing each simulation. Any ...

Imagine this: You’re a writer working on a script or—better yet—you’ve just finished your latest draft. You’ve spent months crafting characters, structuring plot, and developing story. You put the ...

Around the time you receive your patient billing statement, you will also receive an explanation of benefits (EOB) from your insurance provider. An explanation of benefits is a document that explains ...