Numerous methods have been proposed to integrate real-time and non-real-time services of the timed-token medium access control (MAC) protocol. One of the key issues in tailoring the timed-token protocol for real-time applications is the synchronous band-width allocation (SBA) problem whose objective is to meet both the protocol and deadline constraints. Several non-optimal local SBA schemes and...

grinding (solvent-free) method was used as a superior technique to prepare mesoporous photocatalysts of zno, zns, zno / zns, cdo, cds and cdo / cds-sba-15. in this technique, the nitrate, acetate and chloride salts of zinc and/or cadmium were grinded with as-synthesized sba-15 as a mesoporous material. the controllable sulfurationis was used to prepare zns, zno/zns, cds and cdo/cds-sba-15 at te...

Links [1] http://www.sba.unipi.it/it/sba/organizzazione/segreteria-amministrativa [2] http://www.sba.unipi.it/it/sba/personale/tacchi-franca [3] mailto:franca&# 46;tacchi@sba.un&#105 ;pi.it [4] http://www.sba.unipi.it/it/sba/personale/bertela-pier-carla [...

Links [1] http://www.sba.unipi.it/it/sba/organizzazione/segreteria-amministrativa [2] http://www.sba.unipi.it/it/sba/personale/tacchi-franca [3] mailto:franca&# 46;tacchi@sba.un&#105 ;pi.it [4] http://www.sba.unipi.it/it/sba/personale/bertela-pier-carla [...

Polyaniline (PANI), an attractive conductive polymer, has been successfully applied in fabricating various types of enzyme-based biosensors. In this study, we have employed mesoporous silica SBA-15 to stably entrap horseradish peroxidase (HRP), and then deposited the loaded SBA-15 on the PANI modified platinum electrode to construct a GA/SBA-15(HRP)/PANI/Pt biosensor. The mesoporous structures ...

The removal of the surfactant (EO(20)PO(70)EO(20)) by washing before final calcination is a critical step in the synthesis of silica SBA-15. In contrast to washing with pure water or ethanol, washing with water and ethanol may, depending on the quantity of solvent used, alter the homogeneity and order of the pores, but also lead to an increase of the surface area of SBA-15. A reduction of solve...

Healthy volunteers received a single dose of gatifloxacin and moxifloxacin (400 mg each), and serum samples were obtained from these volunteers over a 24-h period. Prolonged (> or =12 h) serum bactericidal activity (SBA) was observed for both agents against staphylococcal isolates with minimum inhibitory concentrations (MICs) of gatifloxacin of < or =0.5 mug/mL. In strains with gatifloxacin MIC...

The feasible, reliable and selective multi-template molecularly imprinted polymers (MT-MIPs) based on SBA-15 (SBA-15@MT-MIPs) for the selective separation and determination of the trace level of ginsenoside Rb1 (Rb1), ginsenoside Rg1 (Rg1) and notoginsenoside R1 (R1) simultaneously from biological samples were developed. The polymers were constructed by SBA-15 as support, Rb1, Rg1, R1 as multi-...

Timed token networks such as FDDI networks have been widely deployed to support real-time traffic such as voice and video communications. However the medium access control (MAC) protocol of FDDI allows transmission of synchronous messages up to at most one half of the total bandwidth of the network. Shin and Zheng has proposed a modification to the FDDI MAC protocol, called FDDI-M, which can do...

SiO(2) mesoporous molecular sieve SBA-15 with the incorporation of erbium ions is studied as a novel type of nanoscopic composite photoluminescent material in this paper. To enhance the photoluminescence efficiency, two schemes have been used for the incorporation of Er(3+) where (1) Er(3+) is ligated with bis-(perfluoromethylsulfonyl)-aminate (PMS) forming Er(PMS)(x)-SBA-15 and (2) Yb(3+) is c...