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In this paper, a series of BaTiO3-SiO2 composites were fabricated by using a combined process of SiO2 wet chemical coating and conventional ceramic process, and the effects of SiO2 coating on microstructures, dielectric and ferroelectric properties were investigated. XRD diffraction patterns illustrated a typical perovskite structure of the SiO2 coated BaTiO3 particles, which confirmed an amorphous...
The evolution of nanogratings in a porous glass was directly observed, revealing that the nanogratings origin from the standing plasma waves at the interfaces excited by femtosecond laser pulses.
We report on controllable production of 3D high-aspect-ratio (length to width ratio > 1,000) nanochannel with a width of ∼40 nm in glass by femtosecond laser direct writing, and demonstrate its applicability for DNA analysis.
Terahertz time-domain spectroscopy is used to measure the temperature-dependent refractive index of heavy oils down to 80 K. Evidence for a glass transition is observed, providing insight into the viscosity-temperature behavior of heavy oils.
In this paper, the development of a portable polymerase chain reaction (PCR) device is presented. The fully integrated self-contained system consists of four major parts: a disposable chamber chip with micro-channels and pumping membranes, a heater chip with micro-heaters and temperature sensors, a linear array of electromagnetic actuators, and a control/sensing circuit. The system can be fully operated...
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