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What are the advantages of time recording machine in an office ? Showing up for work punctually, at an official time, became expected behavior toward the end of the 19th century, as more and more people worked for others rather than for…
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Are pp woven bags waterproof? As far as the woven bag itself is concerned, because the woven bag is made of warp and weft tapes, there is only overlap between the tapes, which does not have sealing property. Therefore, the liquid will be left through the…
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Flexible ureteroscopy update: indications, instrumentation and technical advances Retrograde ureteroscopy has recently gained a broadened indication for use from diagnostic to a variety of complex minimally invasive therapies. This review aims to…
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Food additives have been used for thousands of years, ever since people realized salt could keep meat from spoiling. Today, there are more than 10,000 additives approved by the U.S. Food and Drug Administration (FDA) to preserve, package, or modify the…
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What is a Ramadan crescent moon tree? One particular decor element that has taken root – and is quickly gaining ground in the region this year – is the crescent tree. Chances are you’ve come across it yourself: the artificial tree comes in a…
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Tubes and pipes in technical and everyday use In the beginning was the hollowed-out tree trunk, one of the first capillary tube to be crafted by human hand. With a vast array of models in the plant world to inspire him, Homo sapiens had a much easier…
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How are hybrid inverters used in solar projects? This paper proposes a new configuration of a single-phase hybrid inverter with an integrated battery energy storage, which is suitable for residential households to maximize local consumption of…
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Intelligent Mining Technology for an Underground Metal Mine Based on Unmanned Equipment This article presents facts and figures on mining equipment safety and reviews various important aspects of mining equipment safety including quarry accidents,…
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How Cement Mixers Work In addition to the mixing energy applied to the fresh concrete (i.e. shearing during mixing), the shear history after mixing is also important. This applies especially to binder rich concretes like the different types of high…