High-performance Architecture of Network Intrusion Prevention Systems

Software-based Network Intrusion Prevention Systems have difficulty in handling high speed links. Network processor (NP) is an emerging field of programmable processors that are optimized to implement network data. In this paper, a novel Network Intrusion Prevention scheme is designed based on a heterogeneous multi-core processing architecture where its NP devices complement genera purpose multi-core processors to improve the performance of packet processing. We use Netronome’s network processor to process network traffic at the data link (Ethernet), network (IP), and transport/control layers. A set of network-based anomaly Intrusion Detection sensors is used in processing network traffic. Experimental results show our enhancements can reduce the processing load of the Intrusion Detection sensors. The load balancing by the protocol is better then other previous work

Scale Effect on the Interface Reaction between PDMS‑E Emulsion Droplets and Gelatin

In this study, the scale effect on the interface reaction between PDMS-E emulsion droplets and gelatin was studied systematically. The monodisperse α-[3-(2,3-epoxy-propoxy)­propyl]-ω-butyl-poly­di­methyl­siloxane (PDMS-E) emulsion droplets on different scales were prepared using a Shirasu porous glass (SPG) membrane with a 0.5 μm pore size. The zeta potential results showed that the surface charge density of PDMS-E droplets decreased with the droplet scale, and the variation went through three stages, which corresponded to the diameter ranges of 100–450, 450–680, and 670–800 nm, respectively. The results of Raman spectra indicated that the distribution concentration of head groups in surfactants decreased but the polar epoxy groups tend to be exposed on the interface with the increase in the droplet scale. This was conducive to the nucleophilic attack of amino groups in gelatin on the epoxy group. Thus, the conversion of amino groups was related to the scale of the PDMS-E droplet. This study might provide a proper way to control the rate of interfacial reaction between immiscible macromolecule monomers

[en] BRAZILIANS APARTMENT AND FURNITURE OF 1950S DECADE: LOOKING FOR MODERNISM

Chronic hepatitis B (CHB) is a major global health issue. The role of rare genetic variants in CHB has not been elucidated. We aimed to identify rare allelic variants predisposing to CHB. We performed exome sequencing in 50 CHB patients who had no identifiable risk factors for CHB and 40 controls who were healthy and hepatitis B surface antibody-positive, but had never received hepatitis B vaccination. We selected six rare variant alleles and followed up their association with disease status by Sanger sequencing in a case-control study comprising 1,728 CHB patients and 1,636 healthy controls. The latter had either not been immunized with hepatitis B vaccine or had uncertain vaccination status. Our results showed that transmembrane protein 2 p.Ser1254Asn, interferon alpha 2 p.Ala120Thr, its regulator NLR family member X1 p.Arg707Cys, and complement component 2 p.Glu318Asp were associated with CHB, with P values of <1.0 × 10 -7, 2.76 × 10 -5, 5.08 × 10 -5, 2.78 × 10 -4 and odds ratios (ORs) of 2.45, 4.08, 2.34, and 1.97, respectively. The combined P value was <2.0 × 10 -16. As there has been no indication of immunological functions for the associated gene, transmembrane protein 2, we further studied its expression by immunohistochemistry, real-time polymerase chain reaction, and western blotting. Our results showed that it was strongly expressed by healthy hepatocytes, but its expression was reduced in liver tissues with CHB, hepatitis B viral (HBV) genome-containing HepG2.2.15 cells, as compared with healthy liver tissues and non-HBV genome-containing HepG2 cells (P = 0.022 and 0.0036, respectively). Conclusion: We identified four missense mutations associated with CHB, our results providing evidence for rare inborn genetic defects that contribute to increased host susceptibility to CHB. © 2012 American Association for the Study of Liver Diseases.link_to_OA_fulltex

Progress of Jinping Underground laboratory for Nuclear Astrophysics (JUNA)

Jinping Underground lab for Nuclear Astrophysics (JUNA) will take the advantage of the ultralow background in Jinping underground lab, high current accelerator based on an ECR source and highly sensitive detector to study directly a number of crucial reactions to the hydrostatic stellar evolution for the first time at their relevant stellar energies. In its first phase, JUNA aims at the direct measurements of 25Mg(p,γ)26Al, 19F(p,α)16O, 13C(α,n)16O and 12C(α,γ)16O. The experimental setup, which include the accelerator system with high stability and high intensity, the detector system, and the shielding material with low background, will be established during the above research. The current progress of JUNA will be given

Progress of Jinping Underground laboratory for Nuclear Astrophysics (JUNA)

Jinping Underground lab for Nuclear Astrophysics (JUNA) will take the advantage of the ultralow background in Jinping underground lab, high current accelerator based on an ECR source and highly sensitive detector to study directly a number of crucial reactions to the hydrostatic stellar evolution for the first time at their relevant stellar energies. In its first phase, JUNA aims at the direct measurements of 25Mg(p,γ)26Al, 19F(p,α)16O, 13C(α,n)16O and 12C(α,γ)16O. The experimental setup, which include the accelerator system with high stability and high intensity, the detector system, and the shielding material with low background, will be established during the above research. The current progress of JUNA will be given