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| 1 | Horizontal-Based Orchestration for Multi-Domain SFC in SDN/NFV-Enabled Satellite/Terrestrial Networks显示文摘It's promising to use Software-Defined Networking(SDN) and Network Functions Virtualization(NFV) to integrate satellite and terrestrial networks. To construct network service function chains in such a multi-domain environment, we propose a horizontal-based Multi-domain Service Function Chaining(Md-SFC) orchestration framework. In this framework, multi-domain orchestrators can coordinate with each other to guarantee the end-to-end service quality. Intra-domain orchestrators also coordinate SDN controllers and NFV management components to implement intra-domain service function chains. Based on this, we further propose a heuristic SFC mapping algorithm with a cooperative inter-domain path calculation method to map service function chains to infrastructures. In this method, master multi-domain orchestrator and intra-domain orchestrators coordinate to select proper inter-domain links. We compare the cooperative method with a naive uncooperative way that domains' topology information is provided to the master multi-domain orchestrator and it calculates the shortest inter-domain path between intra-domain service function chains directly. Simulation results demonstrate that our solution is feasible. It is able to construct end-to-end performance guaranteed service function chain by horizontal-based cooperation. The cooperative inter-domain path calculation method decreasesthe mapping load for the master orchestrator and gets the same end-to-end performance. | Guanglei Li Huachun Zhou Bohao Feng Guanwen Li Qi Xu | 2018 | China Communications2018，15，5： | 11 |
| 2 | Comparing the adsorption behaviors of Cd, Cu and Pb from water onto Fe-Mn binary oxide, MnO2 and FeOOH显示文摘FMBO 的吸附潜力, FeOOH , MnO <潜水艇class=“ a-plus-plus ”>为 Cd 的移动的 2 <啜class=“ a-plus-plus ”>2+, Cu <啜class=“ a-plus-plus ”>2+和 Pb <啜class=“ a-plus-plus ”>在水的系统的2+在这研究被调查。比作 FMBO 和 FeOOH, MnO < 潜水艇 class= “ a-plus-plus ” > 2 向三个金属离子为高得多的移动提供了能力。 MnO 的最大的吸附能力<潜水艇class=“ a-plus-plus ”>为 Cd 的 2 <啜class=“ a-plus-plus ”>2+, Cu <啜class=“ a-plus-plus ”>2+和 Pb <啜class=“ a-plus-plus ”>2+是 1.23 , 2.25 和 2.60 mmol ???????剕偅??????????????????????￡?? 蓈 ?? | Wei XU Huachun LAN Hongjie WANG Hongming LIU Jiuhui QU | 2015 | Frontiers of Environmental Science & Engineering2015，9，3： | 4 |
| 3 | Service Function Chain in Small Satellite-Based Software Defined Satellite Networks显示文摘Software Defined Satellite Networks(SDSN) are proposed to solve the problems in traditional satellite networks, such as time-consuming configuration and inflexible traffic scheduling. The emerging application of small satellite and research of SDSN make it possible for satellite networks to provide flexible network services. Service Function Chain(SFC) can satisfy this need. In this paper, we are motivated to investigate applying SFC in the small satellite-based SDSN for service delivery. We introduce the structure of the multi-layer constellation-based SDSN. Then, we describe two deployment patterns of SFC in SDSN, the Multi-Domain(MD) pattern and the Satellite Formation(SF) pattern. We propose two algorithms, SFP-MD, and SFP-SF, to calculate the Service Function Path(SFP). We implement the algorithms and conduct contrast experiments in our prototype. Finally, we summarize the applicable conditions of two deployment patterns according to the experimental results in terms of hops, delay, and packet loss rate. | Taixin Li Huachun Zhou Hongbin Luo Qi Xu Si Hua Bohao Feng | 2018 | China Communications2018，15，3： | 2 |
| 4 | Analysis and Optimisation of Halomonas Growth Factors Based on PCA and RSM显示文摘The biomass of petroleum-degrading bacteria, such as Halomonas spp., is crucial to the alleviation of severe oil spills through bioremediation. In this paper, the bacterium(HDMP1) was isolated and identified. Growth factors were analysed and optimised through the single-factor experiments, the factor analysis(FA), the principal component analysis(PCA), and the response surface methodology(RSM). Results indicated that HDMP1 was identified as genus Halomonas. In the single-factor experiments, the range of suitable growth conditions for HDMP1 covered: a salt concentration of 2%-4%, a medium pH value of approximately 9, an inoculum concentration of 1.0%, a substrate concentration of 1.0%-1.4%, and a rotation rate of 140 r/min. The evaluation by FA and PCA indicated that three significant growth factors were the salt concentration, the pH value, and the rotation rate. A maximum biomass of HDMP1 was obtained under the conditions covering a salt concentration of 3.5%, a medium pH of 8, and a rotation rate of 151 r/min by optimization. | Shi Ke Huang Guofu Xu Huachun Xue Jianliang Sun Jingkuan Xiao Xinfeng Li Lin | 2019 | China Petroleum Processing & Petrochemical Technology2019，21，4： | 1 |
| 5 | Graphene-modified Pd/C cathode and Pd/GAC particles for enhanced electrocatalytic removal of bromate in a continuous threedimensional electrochemical reactor显示文摘 | Mao Ran Zhao Xu Lan Huachun | 2015 | Water Research2015，77，2： | 1 |
| 6 | Immediate and long-term outcomes after treat-all among people living with HIV in China:an interrupted time series analysis显示文摘Background In 2003,China implemented free antiretroviral therapy(ART)for people living with HIV(PLHIV),establishing an eligibility threshold of CD4<200 cells/μl.Subsequently,the entry criteria were revised in 2012(eligibility threshold:CD4≤350 cells/μl),2014(CD4≤500 cells/μl),and 2016(treat-all).However,the impact of treat-all policy on HIV care and treatment indicators in China is unknown.We aimed to elucidate the immediate and long-term impact of the implementation of treat-all policy in China.Methods Anonymized programmatic data on ART initiation and collection in PLHIV who newly started ART were retrieved between 1 January 2015 and 31 December 2019,from two provincial and municipal Centers for Disease Control and Prevention and ten major infectious disease hospitals specialized in HIV care in China.We used Poisson and quasi-Poisson segmented regression models to estimate the immediate and long-term impact of treat-all on three key indicators:monthly proportion of 30-day ART initiation,mean CD4 counts(cells/μl)at ART initiation,and mean estimated time from infection to diagnosis(year).We built separate models according to gender,age,route of transmission and region.Results Monthly data on ART initiation and collection were available for 75,516 individuals[gender:83.8%males;age:median 39 years,interquartile range(IQR):28-53;region:18.5%Northern China,10.9%Northeastern China,17.5%Southern China,49.2%Southwestern China].In the first month of treat-all,compared with the contemporaneous counterfactual,there was a significant increase in proportion of 30-day ART initiation[+12.6%,incidence rate ratio(IRR)=1.126,95%CI:1.033-1.229;P=0.007]and mean estimated time from infection to diagnosis(+7.0%,IRR=1.070,95%CI:1.021-1.120;P=0.004),while there was no significant change in mean CD4 at ART initiation(IRR=0.990,95%CI:0.956-1.026;P=0.585).By December 2019,the three outcomes were not significantly different from expected levels.In the stratified analysis,compared with the contemporaneous counterfactual,mean CD4 at ART initiation showed significant increases in Northern China(+3.3%,IRR=1.033,95%CI:1.001-1.065;P=0.041)and Northeastern China(+8.0%,IRR=1.080,95%CI:1.003-1.164;P=0.042)in the first month of treat-all;mean estimated time from infection to diagnosis showed significant increases in male(+5.6%,IRR=1.056,95%CI:1.010-1.104;P=0.016),female(+14.8%,IRR=1.148,95%CI:1.062-1.240;P<0.001),aged 26-35(+5.3%,IRR=1.053,95%CI:1.001-1.109;P=0.048)and>50(+7.8%,IRR=1.078,95%CI:1.000-1.161;P=0.046),heterosexual transmission(+12.4%,IRR=1.124,95%CI:1.042-1.213;P=0.002)and Southwestern China(+12.9%,IRR=1.129,95%CI:1.055-1.208;P<0.001)in the first month of treat-all.Conclusions The implementation of treat-all policy in China was associated with a positive effect on HIV care and treatment outcomes.To advance the work of rapid ART,efforts should be made to streamline the testing and ART initiation process,provide comprehensive support services,and address the issue of uneven distribution of medical resources. | Xinsheng Wu Guohui Wu Ping Ma Rugang Wang Linghua Li Yinghui Sun Junjie Xu Yuwei Li Tong Zhang Quanmin Li Yuecheng Yang Lijing Wang Xiaoli Xin Ying Qiao Bingxue Fang Zhen Lu Xinyi Zhou Yuanyi Chen Qi Liu Gengfeng Fu Hongxia Wei Xiaojie Huang Bin Su Hui Wang Huachun Zou | 2023 | Infectious Diseases of Poverty2023，12，4： | 0 |
| 7 | Safety and Immunogenicity of SARS-CoV-2 Vaccines in People Living With HIV:A Systematic Review and Meta-analysis of Real-World Studies显示文摘The safety and immunogenicity of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)vaccines in people living with HIV(PLWH)in real-world studies remain controversial.Thus,we conducted a comprehensive systematic review and meta-analysis to address this issue.Data search were conducted from PubMed,Web of Science and EMBASE.Adverse events following vaccination,the risk ratio(RR)of SARS-CoV-2–specific IgG seroconversion and the level of anti–SARS-CoV-2 neutralizing antibodies were compared between the PLWH group and a healthy control group.A total of 10,582 PLWH from 22 studies were included.In our analysis,the incidence of local or systemic adverse events after the first SARS-CoV-2 vaccine dose was not statistically different between PLWH and healthy controls.However,there was a statistical difference after the second dose(RR,0.83;95%CI,0.71–0.98).The seroconversion rate of SARS-CoV-2 IgGantibodies in PLWH was significantly lower than that in the healthy control group(RR,0.94;95%CI,0.89–0.98;I2=80%,P<0.01).The anti–SARS-CoV-2 neutralizing antibody titers in PLWH after full immunization were also significantly lower than those in the healthy control group(RR,0.91;95%CI,0.85–0.98;I2=81%,P<0.01).The safety and tolerance of COVID-19 vaccines in PLWHare acceptable.However,their immunogenicitymay be impaired to a certain extent,characterized by a lower IgGseroconversion rate and neutralizing antibody titers compared with healthy individuals.These findings should provide guidance for optimizing future COVID-19 vaccination strategies among PLWH. | Xueying Fan Yangguo Zhao Fan Wu Yue Yuan Bing Lang Di Yin Zhongliang Xu Shiqiang Jiang Huachun Zou Jianhui Yuan Caijun Sun | 2023 | Infectious Microbes & Diseases2023，5，4： | 0 |
| 8 | Transmission risk of asymptomatic SARS-CoV-2 infection:a systematic review and meta-analysis显示文摘Background:Global evidence on the transmission of asymptomatic SARS-CoV-2 infection needs to be synthesized.Methods:A search of 4 electronic databases(PubMed,EMBASE,Cochrane Library,and Web of Science databases)as of January 24,2021 was performed.Preferred Reporting Items for Systematic Reviews and Meta-Analyses(PRISMA)guidelines were followed.Studies which reported the transmission rate among close contacts with asymptomatic SARS-CoV-2 cases were included,and transmission activities occurred were considered.The trans-mission rates were pooled by zero-inflated beta distribution.The risk ratios(RRs)were calculated using random-effects models.Results:Of 4923 records retrieved and reviewed,15 studies including 3917 close contacts with asymptomatic indexes were eligible.The pooled transmission rates were 1.79 per 100 person-days(or 1.79%,95%confidence interval[CI]0.41%-3.16%)by asymptomatic index,which is significantly lower than by presymptomatic(5.02%,95%CI 2.37%-7.66%;p<0.001),and by symptomatic(5.27%,95%CI 2.40%-8.15%;p<0.001).Subgroup anal-yses showed that the household transmission rate of asymptomatic index was(4.22%,95%CI 0.91%-7.52%),four times significantly higher than non-household transmission(1.03%,95%CI 0.73%-1.33%;p=0.03),and the asymptomatic transmission rate in China(1.82%,95%CI 0.11%-3.53%)was lower than in other countries(2.22%,95%CI 0.67%-3.77%;p=0.01).Conclusions:People with asymptomatic SARS-CoV-2 infection are at risk of transmitting the virus to their close contacts,particularly in household settings.The transmission potential of asymptomatic infection is lower than symptomatic and presymptomatic infections.This meta-analysis provides evidence for predict-ing the epidemic trend and promulgating vaccination and other control measures.Registered with PROS-PERO International Prospective Register of Systematic Reviews,CRD42021269446;https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=269446. | Ci Zhang Chao Zhou Wanqing Xu Shimin Zheng Yanxiao Gao Peiqi Li Luojia Deng Xuezhixing Zhang Qianxue Jiang Frank Qian Xianhong Li Honghong Wang Huachun Zou Yinglin Xia Tao Wang Hui Lu Han-Zhu Qian | 2023 | Infectious Medicine2023，2，1： | 0 |
| 9 | Eye Model for Inspecting the Image Quality of IOLs显示文摘Purpose:To inspect and compare the image quality of an aspheric intraocular lens(IQ,Alcon)with those of conventional monofocal silicone and acrylic intraocular lens and multifocal intraocular lens(Array).Methods:The IOLs were tested in the eye model,which was designed to be optically equivalent to the theoretical eye model.The eye model is a combination of a spherical photographic lens with 35 mm focal length(IOL put in a water cell)and a charge coupled device(CCD)camera.The images constructed by the lenses are observed on a monitor of personal computer and the contrasts of the images are analyzed by using commercial image processing software.SHARP value is used to measure and estimate image definition.Results:The images constructed by changing the diameter of aperture stop and IOL.Observed by this eye model,the image definition of aspheric intraocular lens(IQ,Alcon)is better than others.Discussion:The proposed eye model is useful for testing functional vision and for inspecting the differences of intraocular lens. | Zhenping Huang Renfeng Xu Chunyan Xue Yong Wu Huachun Wang Degao Zhao | 2007 | 眼科学报2007，23，3： | 0 |
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