Crystal Palace ended their recent good form with a 2-1 defeat at home to Brentford.

Here, we report that by combining the method of crystal doping with “tailor-made” auxiliaries, one may convert nonpolar crystals into polar ones and thus investigate some of their concealed properties ...

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Hydrogen Isotope Research Center, Organization for Promotion of Research, University of Toyama, 3190 Gofuku, Toyama 930-8555, Japan ...

长远来看，国产射频滤波器想要走入高端产品替代，衬底是个难啃也必须啃的“硬骨头”。与此同时，国内也应该迅速完善专利体系，保护高科技厂商的核心价值。 射频滤波器便是这样一个需求够大、替代动力更足的项目。如果一切顺利，这一领域的创业公司们应该已经走过了从0到1的生死期，顺理成章地进入更高端替代领域。