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A method for the separation from fish tissues of the four main glycerophospholipid classes, phosphatidylcholine, phosphatidylethanolamine, phosphatidylinositol and phosphatidylserine, using adsorption high-performance liquid chromatography with ultraviolet detection and consecutive gas chromatographic analysis, based on one injection for their fatty acid(More)
A chemical method for the analysis of naturally occurring vitamin D is proposed. The unsaponifiable matter of oils and tissues is prepared, cholesterol is partly removed by double precipitation at low temperature in methanol. The vitamin D fraction is collected on an adsorption column by high performance liquid chromatography. The fraction is further(More)
– In this paper we introduce a PON mobile access network as a candidate to offer continuous multimedia IP communications to fast moving terminals in a micro-cellular environment. As an alternative to IP micro-mobility protocols we propose a PON access network with FA distributed over all access points connected to the same fiber. All ONU associated with the(More)
This paper introduces our project named MM-MAN (Mobile Multimedia Metropolitan Area Network) aiming to provide high-bit rate packet transfer to fast-moving terminals in a micro-cellular network. One of the advanced services assumed in MM-MAN is a LAN extension to the cellular network. This paper first presents advantages of MM-MAN compared with a mobile(More)