نتایج جستجو برای: monolithic
تعداد نتایج: 8849 فیلتر نتایج به سال:
A monolithic silica column has recently been widely used for HPLC separation analysis. Compared with the particle−packed column (conventional column), the monolithic silica column eluted the analyte with a smaller retention factor (k), lower pressure and satisfactory separation [1]. However, the monolithic silica column has not been widely used for the HPLC or LC/MS analysis of steroids. These ...
In recent years, the use of zirconia as a high-strength support for all-ceramic restorations has become widely accepted. The failure of zirconia restorations is mainly due to the weakness of veneering porcelain and other factors such as veneering approach. Except conventional hand layering, other methods such as pressing and digital veneering have been recently introduced and used. Meanwhile, t...
Monolithic integrated lumped planar transformers were introduced more than ten years ago. We present a comprehensive review of the electrical characteristics which results in an accurate lumped low-order equivalent model. Amplifiers, mixers and Meissner-type voltage controlled oscillators using monolithic transformers have been published a few years ago. For the first time, integrated transform...
The application of circular aperture frequency selective surface (FSS) for the enhancement of electromagnetic performance of monolithic half-wave radome is presented. The performance parameters of the circular aperture type FSS embedded radome panel are computed based on equivalent transmission line method in conjunction with equivalent circuit method (ECM). The EM analysis shows that the circu...
Rapid change is nothing new in a discipline that only has a lifespan of approximately fifty years. What is unique at the moment however, is the speed at which industry is adopting and then utilising these changes. The Internet is the primary driver in this rapid evolution, and this requires a step change in the thinking behind software evolution. Logically, and financially, it makes sense for t...
Modern science is a main driver of technological innovation. The efficiency of the scientific system is of key importance to ensure the competitiveness of a nation or region. However, the scientific system that we use today was devised centuries ago and is inadequate for our current ICT-based society: the peer review system encourages conservatism, journal publications are monolithic and slow, ...
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