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Between February 2011 and February 2012, 985 and 324 samples were collected from diarrheal and healthy pigs, respectively, to detect porcine epidemic diarrhea virus (PEDV), porcine kobuvirus (PKoV), porcine bocavirus (PBoV), porcine group A rotavirus (GARV), and transmissible gastroenteritis virus (TGEV). PEDV and PKoV clearly predominated in diarrheal(More)
In this paper, we present a receiver-based, bandwidth estimation rate control mechanism with content-aware probability retransmission to limit the burden on multimedia transmission congested network. Like the TCP friendly rate control (TFRC) protocol, we compute the sending rate as a function of the loss event rate and round-trip time. Considering the(More)
With the widespread penetration of broadband accesses, many multimedia applications, such as video surveillance, on-demand video streaming, IPTV and news broadcast are emerging. Since video streaming applications on the Internet generally have very high bandwidth requirements and yet are often unresponsive to network congestion. In order to avoid congestion(More)
With the security industry developing rapidly and the number of security systems increasing continuously in recent years, security systems provide a positive effect on society security in China, but many of them became vulnerable or even useless because of the problem of irrational allocation of resources. In order to evaluate security system efficiency to(More)
OBJECTIVE We evaluated the efficacy of the recombinant pertactin (PRN)-specific active or passive immunization against Bordetella bronchiseptica (Bb) in an aerosol challenge model established by using BALB/c mice. METHODS AND RESULTS Mice, immunized subcutaneously with two doses of purified glutathione S-transferase (GST)-PRN protein mixed with an equal(More)
In this paper we introduce Faster-Restart, an optional mechanism for safely improving sender's transmission rate during the restart in a multicast communication. The key challenge in the design of the mechanism lies in utilizing network information before and after idle periods, reasonably controlling rate increment and therefore reaching the balance(More)
The aim of this study was to determine the genetic diversity of Chinese feline calicivirus (FCV) isolates and their phylogenetic relationship with isolates from elsewhere in the world. Phylogenetic analysis was performed based on the partial open reading frame (ORF) 2 sequences (regions B-F) of 21 Chinese FCV isolates and 30 global isolates. The Chinese(More)
OBJECTIVE We developed an indirect ELISA method for detecting Bordetella bronchiseptica (Bb) pertactin antibodies based on the recombinant pertactin protein expressed in Escherichia coli (DE3) strain. METHODS AND RESULTS The prn gene encoding Bb pertactin was fused to the downstream of glutathione S-transferase (GST) of pGEX-KG expression vector,(More)
Bordetella bronchiseptica is a Gram-negative respiratory pathogen responsible for atrophic rhinitis and bronchopneumonia in swine. Several vaccines aimed at preventing B. bronchiseptica have been used, but a safe and efficient live vaccine for use in piglets remains elusive. In this study, we constructed an aroA-deleted B. bronchiseptica strain (QH0814) and(More)
OBJECTIVE Glutamyl tRNA Synthetase (Gts) is a protease which catalyzes esterification between tRNA and glutamine. The immunogenicity of Gts was evaluated through immunization and challenge experiment. METHODS AND RESULTS We cloned gts from the genome of SC19, and inserted it into prokaryotic expression plasmid pET28a-gts. The recombinant vector was(More)