نتایج جستجو برای: مدل cd
تعداد نتایج: 167134 فیلتر نتایج به سال:
In order to better understand the chiral recognition mechanisms of positively charged cyclodextrin (CD) derivatives, synthesis, pKa determination by 1H nuclear magnetic resonance (NMR)-pH titration and a comparative capillary electrophoretic (CE) study were performed with two series mono-substituted cationic single isomer CDs. The first selectors mono-(6-N-pyrrolidine-6-deoxy)-β-CD (PYR-β-CD), ...
Descriptions of nutritional deficiencies in literature are mostly based on agricultural crops. As every plant variety reacts very individually on deficiency or excess of nutrients, there is still a large lack of information on horticultural products. For this reason many vegetable and pot plant varieties have been tested on symptoms of nutritional deficiencies by selective fertilisation at the ...
Description of the Gari-Coter project for the development of the necessary linguistic resources in Galician for a multilingual query re-elaborator.
This paper presents an empirical validation of the Abstract Tasks (ATs), which are operational guidelines driving the inspection activities during a usability evaluation. Two groups of inspectors evaluated a multimedia CD-ROM, one group using the ATs, the other group using a list of heuristics. Results demonstrated a better performance of the AT group but raised some issues concerning the accep...
Three MEDLINE-on-CD-ROM interfaces are compared: SPIRS (version 3.11) and WinSPIRS (version 1.0) from SilverPlatter and OVID (version 3.0, DOS and Windows interfaces) from CD Plus Technologies. Though the database is the same, there are substantial differences among the interfaces in the way these data are presented and can be searched. These different approaches are discussed, and a detailed c...
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