A novel grating coupling MAGNESIUM W HAWTHORN BERRY scheme with simultaneously broadband and wide-angle efficiency for unidirectionally coupling freely propagating light into a silicon waveguide is proposed and theoretically investigated.The coupling structure is composed of two cascaded subgratings with proper spectral and angular intervals.A semi
Concrete is the most extensively utilized construction material globally and is increasingly used due to industrialization and urbanization.Currently, most scientists worldwide are concentrating their attention on effective strategies to adopt materials from large amounts of waste resources as a partial substitute for cement in concrete production
This paper examines the effect of financial deregulation on economic growth in Nigeria using annual data Throw Blanket from 1986 to 2016.An index was used to capture financial deregulation.The index was generated using Principal Component Analysis from six variables namely: bank denationalisation, restructuring and interest rate liberalisation, pru
We consider conceptual approaches to creation of information systems, learning management school, which uses modern methods of decision-making and simulational modeling, web-technologies.The main criteria for the selection of development tools of the system are: openness, free of charge, easy to use and independence from system software and hardwar
This study investigates variations in the L2 rhetoric across different L1 groups.To do this, the author compared the metadiscourse in English essays composed by 11 Asian learner groups.The multivariate statistical method, namely, the heat map with hierarchical clustering, was applied to clarify differences in metadiscourse among these groups.The re