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Bigger, faster, higher? The appetite for broad-band has clearly fueled the development of mobile cellular networks. On the other hand, the successful deployment of killer applications in the past 20 years has had a major impact on the markets as well: First and foremost, the need for unteth-ered telephony and, with it, wireless real-time voice communication(More)
An acid proteinase from the culture filtrate of Penicillium camemberti was isolated in a two-step purification procedure by cation exchange chromatography and gel filtration. The enzyme is an aspartic proteinase inhibited by pepstatin, DAN, and EPNP, with a molecular mass determined by sodium dodecyl sulfate-polyacrylamide gel electrophoresis of 33.5 kDa.(More)
— LTE and LTE-Advanced have been optimized to deliver high bandwidth pipes to wireless users. The transport mechanisms have been tailored to maximize single cell performance by enforcing strict synchronism and orthogonality within a single cell and within a single contiguous frequency band. Various emerging trends reveal major shortcomings of those design(More)
A proteinase was purified from resting seeds of Cucurbita ficifolia by ammonium sulfate fractionation and successive chromatography on CM-cellulose, Sephacryl S-300 and TSK DEAE-2SW (HPLC) columns. Inhibition by DFP and PMSF suggests that the enzyme is a serine proteinase. The apparent molecular mass of this enzyme is ca. 77 kDa. The optimum activity for(More)
5GNOW ('5th Generation Non-orthogonal Waveforms', FP7 ICT Call 8 project supported by the European Commission) will question the design targets of LTE and LTE-Advanced and the obedience to strict synchronism and orthogonality will be challenged. It will develop new PHY and MAC layer concepts being better suited to meet the upcoming needs with respect to(More)
—This paper reports intermediate transceiver and frame structure concepts and corresponding results from the European FP7 research project 5GNOW. The core is the unified frame structure concept which supports an integrated 5G air interface, capable of dealing both with broadband data services and small packet services within the same band. It is essential(More)
The synthesis of a fluorescent beta-lactamase inhibitor, p-nitrophenyl [(dansylamido)methyl]-phosphonate is described. The compound inactivated the class C beta-lactamase of Enterobacter cloacae P99 with stoichiometric release of p-nitrophenol, presumably, as with other phosphonate inhibitors, by phosphonylation of the active site serine. The inhibited(More)