The most obvious difference between even-firing and odd-firing engines is their sound. But before we dive into that, let's understand what odd- and even-firing means. In a four-stroke engine, one ...

Going without sleep can become dangerous quickly, with symptoms like cognitive impairment and hallucinations appearing after just a few nights. After 24, 36, 48, and 72 hours without sleep, problems ...

Dry skin, also called xerosis, can feel tight, rough, scaly, or itchy even when you moisturize regularly. It becomes more common with age. Oily buildup, harsh cleansers, overwashing, hot showers, ...

Americans seem to carry bottled water everywhere they go these days. In fact, it has become the second most popular drink (behind soft drinks). But water lovers got a jolt recently when we heard that ...

Abstract: A novel null scanning patch antenna operating at 2.4 GHz is presented. Unlike the existing reconfigurable techniques, the even and odd modes of a shorted patch are adopted to first achieve a ...

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Estimated annual Iowa production cost budgets for the following crops are presented in this file. These budget tables are presented in the accompanying "pdf" file that you can access by clicking here ...

Abstract: We present two approaches for mode conversion in photonic crystal. Waveguide with cavity design achieves 35 dB unidirectionality and > 90% forward transmission. Pure waveguide design with ...

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