Suppression of residual crosstalk is desired in switching a data channel from a multiple-channel frame in optical time division multiplexing (OTDM) network. Using the symmetric MachZehnder (SMZ) switch, it is a possible to obtain the desired data channel with relatively low residual crosstalk induced by the adjacent channels. In this paper we propose a simple and effective method to further sup...

Headwater streams generally comprise the majority of stream area in a watershed and can have a strong influence on downstream food webs. Our objective was to determine the effect of altering streamside management zone (SMZ) configurations on headwater aquatic insect communities. Timber harvests were implemented within six watersheds in eastern Kentucky. The SMZ configurations varied in width, c...

Chondroitin sulfate (CS) carrying proteoglycans (PGs) are widely expressed in the nervous system, and there is increasing evidence that they regulate developmental mechanisms like neurite outgrowth, axonal guidance and neuronal migration. Moreover, they can also act indirectly by organizing and/or modulating growth factors and guidance molecules. We found that chondroitin-4-sulfate is coexpress...

In order to realize the efficient removal of sulfamethazine (SMZ) and overcome recycling difficulty catalysts in a heterogeneous catalytic ozonation process, low-cost natural zeolite loaded with CeO 2 Fe 3 O 4 (FC/HZ) was synthesized by co-precipitation method. The FC/HZ catalyst could completely degrade SMZ 39.6% TOC through ozonation. Moreover, exhibited high activity under wide pH range poss...

As part of the SENTRY Antimicrobial Surveillance Program, a total of 1078 Acinetobacter species and 842 Stenotrophomonas maltophilia isolates were collected between January 1997 and December 1999 from 5 geographic regions (Canada, the United States, Latin America, Europe, and the Asia-Pacific). The frequency of infections (by geographic region and body site), including those due to imipenem-res...

The conventional precursor preparation of metal–organic frameworks (MOFs) for nitrogen-doping carbon materials is divided into the MOFs and mixing nitrogen source, which a complex time-consuming step. In this study, Fe-BTC gel/nitrogen source-derived were synthesized using one or more following raw ingredients: Fe(NO3)3·9H2O, FeCl3·6H2O, Fe2(SO4)3, trimesic acid, melamine dicyandiamide. influen...

The latest results in ultrafast data regeneration and wavelength conversion with SMZ-type all-optical semiconductor switches are reviewed. In these operations, the SMZ-type switch is driven by random data pulses. The fastest bit rate reported to date for such input-data-driven all-optical operation has reached 168 Gb/s. With these all-optical devices, we may be able to build 160-Gb/s OTDM nodes...