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Xiaoya Zhao,Zhili Li,Xiduo Zeng,Guanqun Zhang,Jianqiang Niu,Baoli Sun,Jingyun Ma 대한수의학회 2017 Journal of Veterinary Science Vol.18 No.2
The spike gene of porcine epidemic diarrhea virus (PEDV) was sequenced from 55 South China field strains isolated from pigs with symptoms of diarrhea. The sequences were compared within the set of field strains as well as with reference strains available in GenBank. Within the 55 South China PEDV field strains, the deduced amino acid sequence identities ranged from 93.8% to 99.9 % and ranged from 90.7% to 99.5% when compared with the foreign reference strains in GenBank. Our phylogenetic analysis showed that 10 of the 55 South China PEDV strains belonged to G1b and 45 belonged to G2b.
AP-SDN: Action Program enabled Software-Defined Networking Architecture
Zheng Zhao,Xiaoya Fan,Xin Xie,Qian Mao,Qi Zhao 한국인터넷정보학회 2023 KSII Transactions on Internet and Information Syst Vol.17 No.7
Software-Defined Networking (SDN) offers several advantages in dynamic routing, flexible programmable control and custom application-driven network management. However, the programmability of the data plane in traditional SDN is limited. A network operator cannot change the ability of the data plane and perform complex packet processing on the data plane, which limits the flexibility and extendibility of SDN. In the paper, AP-SDN (Action Program enabled Software-Defined Networking) architecture is proposed, which extends the action set of SDN data plane. In the proposed architecture, a modified Open vSwitch is utilized in the data plane allowing the execution of action programs at runtime, thus enabling complex packet processing. An example action program is also implemented which transparently encrypts traffic for terminals. At last, a prototype system of AP-SDN is developed and experiments show its effectiveness and performance.
Graphene Supported Li2SnO3 as Anode Material for Lithium-Ion Batteries
Yang Zhao,Ying Huang,Qiufen Wang,XiaoYa Wang,Meng Zong,Haiwei Wu,Wei Zhang 대한금속·재료학회 2013 ELECTRONIC MATERIALS LETTERS Vol.9 No.5
The graphene supported Li2SnO3 composites were prepared via a deoxidation technique. The structure, morphology and electrochemical properties of the composites were detected by means of XRD, SEM, TEM,Raman, TGA and electrochemical measurements. The Li2SnO3 powders could be distributed on the graphene sheets (GNS). The Li2SnO3/GNS composites exhibit good electrochemical performance with high capacity and good cycling stability (582.2 mAh/g after 50 cycles at 60 mA/g). The performance is ascribed to the presence of graphene keeping the structure stable. The composites Li2SnO3/GNS exhibited a better electrochemical property than Li2SnO3 and graphene.
Performance Analysis of NOMA-based Relaying Networks with Transceiver Hardware Impairments
( Chao Deng ),( Xiaoya Zhao ),( Di Zhang ),( Xingwang Li ),( Jingjing Li ),( Charles C. Cavalcante ) 한국인터넷정보학회 2018 KSII Transactions on Internet and Information Syst Vol.12 No.9
In this paper, the performance of non-orthogonal multiple access (NOMA) dual-hop (DH) amplify-and-forward (AF) relaying networks is investigated, where Nakagami-m fading channel is considered. In order to cover more details, in our analysis, the transceiver hardware impairments at source, relay and destination nodes are comprehensively considered. To characterize the effects of hardware impairments brought in NOMA DH AF relaying networks, the analytical closed-form expressions for the exact outage probability and approximate ergodic sum rate are derived. In addition, the asymptotic analysis of the outage probability and ergodic sum rate at high signal-to-noise ratio (SNR) regime are carried out in order to further reveal the insights of the parameters for hardware impairments on the network performance. Simulation results indicate the performance of asymptotic ergodic sum rate are limited by levels of distortion noise.
최현석,Yan Zhao,Haijie Dou,Xiaoya Cai,Mengmeng Gu,Fei Yu 한국원예학회 2018 Horticulture, Environment, and Biotechnology Vol.59 No.3
This study investigates the potential of using biochar as a substrate component to replace pine bark (PB) to produce horticultural crops in containers. Biochar was incorporated in PB at 0, 20, 40, 60, 80 and 100% (by volume) to grow chrysanthemum, tomato, lettuce and basil plants in containers. The responses of plant growth to the percentage of biochar combined in PB mixtures varied among the different crops. Chrysanthemum plants grown in PB mixtures with 80% and 100% biochar had significant higher shoot fresh weight (FW) and dry weight (DW) than plants grown in PB alone, while the same treatments resulted in reduced shoot FW, DW, growth index measured at 19 and 33 days after transplanting and root rating of tomato plants. Growing lettuce plants in 100% biochar reduced the FW of the second crop compared to plants grown in PB substrates supplemented with 0, 20, 40, 60, and 80% biochar. For basil, although biochar alone caused lower root rating, it did not adversely influence the fresh basil yield. Generally, no negative effect on plant growth was observed in PB mixes with biochar as high as 60%, which is probably the outcome of similar physical properties of the biochar to the commonly used PB.
Microcapsules derived from Pickering emulsions as thermal latent curing accelerator for epoxy resins
Bowen Zhang,Yingying Zhao,Xin Sun,Xiaoma Fei,Weiwei Wang,Xiaojie Li,Xiaoya Liu 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.83 No.-
Organic-inorganic hybrid microcapsules encapsulating 2-phenylimidazole (2-PhIm) were prepared byPickering emulsion polymerization of styrene and divinyl benzene using methacryloyloxy silanemodifiedsilica particles as the stabilizer, and served as a thermal latent curing accelerator fordiglycidylether of bisphenol A epoxy/anhydride system. The one-component curing compositioncontaining 5 wt% of the microcapsules exhibited an excellent storage stability. The pot life at roomtemperature was as long as 30 days, while which of 2-PhIm curing system was only 2 days. At elevatedtemperature, the encapsulated 2-PhIm could be released from microcapsules effectively, and instantlyaccelerated the curing reaction. Meanwhile, the addition of microcapsules did not cause an adverse effecton the thermomechanical performance of the epoxy thermosets. In addition, the latency and curingbehavior could be facilely regulated at a wide range of temperature by adjusting monomer ratios of thepolymer matrix, to match different process temperatures. The microcapsules with robust cross-linkedpolystyrene matrix structure also showed good resistance to shearing forces, indicating their feasibilityfor high-speed mixing or kneading process in practical applications. It is suggested that the novel latentcuring accelerator is potential for high-performance one-pot epoxy formulations, particularlyrecommended for application in electronic packagingfields.