A family of new mechanical presses is invented. This type of presess is programmable (including its stroke, speed and acceleration) and energy-efficient (it uses a flywheel to ease the peak energy). Mechanically, it is a 2 degree-of-freedom punching mechanism driven by two different motors (a commo.....
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It had been a very long dream in polymer science to synthesize long multi-block heteropolymer chains with an ordered sequence and controllable block lengths. Using ionic or living free radical polymerization, one can prepare copolymers with few blocks, such as diblock and triblock copolymers. The .....
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The invention makes the generation of a low frequency error clock source for backscatter link frequency possible. The power consumption of the invention is very low such that the reading distance of a passive transponder is not harmed. Also the clock calibration process continuously conducted in t.....
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According to the International Technology Roadmap for Semiconductors, the introduction of a high-k material within the gate stack in complementary metal-oxide semiconductor (CMOS) baseline is mandatory in the near future for any kind of applications. Previous efforts in seek of high-k materials hav.....
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Osteoporosis, a silent disease, is a skeletal disorder characterized by compromised bone strength predisposing to an increased risk of fractures. The global burden of osteoporosis is significant nowadays – over 200 million people worldwide and approximately 30% of all postmenopausal women in the USA.....
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