31 research outputs found

    Vegetal fibers in polymeric composites: a review

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    Complex Numbers and Rhythmic Changes

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    The concept of complex numbers (CNs) is used in many disciplines. In many cases, students find it difficult to understand the logic behind CNs. Rotations, vibrations, and oscillations result in sine or cosine waves. Mathematical representation of rotation/vibration/oscillation is done in two ways—trigonometry and complex numbers. But the algebraic calculation is easier if CNs are used instead of trigonometric functions. The use of CNs as an effective representation of sinusoidal variations is discussed in this article

    Why does a rubber ball bounce?

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    An Effective EMI Shielding Material Based on Poly (trimethylene terephthalate) Blend Nanocomposites with Multiwalled Carbon Nanotubes

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    Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала
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