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Zhao, Fang-Hui,Tiggelaar, Sarah M.,Hu, Shang-Ying,Zhao, Na,Hong, Ying,Niyazi, Mayinuer,Gao, Xiao-Hong,Ju, Li-Rong,Zhang, Li-Qin,Feng, Xiang-Xian,Duan, Xian-Zhi,Song, Xiu-Ling,Wang, Jing,Yang, Yun,Li, Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.5
Objectives: To assess knowledge of HPV and attitudes towards HPV vaccination among the general female population, government officials, and healthcare providers in China to assist the development of an effective national HPV vaccination program. Methods: A cross-sectional epidemiologic survey was conducted across 21 urban and rural sites in China using a short questionnaire. 763 government officials, 760 healthcare providers, and 11,681 women aged 15-59 years were included in the final analysis. Data were analyzed using standard descriptive statistics and logistic regression. Results: Knowledge of HPV among the general female population was low; only 24% had heard of HPV. Less than 20% of healthcare providers recognized sexually na$\ddot{i}$ve women as the most appropriate population for HPV vaccination. There was high acceptance of the HPV vaccine for all categories of respondents. Only 6% of women were willing to pay more than US $300 for the vaccine. Conclusions: Aggressive education is necessary to increase knowledge of HPV and its vaccine. Further proof of vaccine safety and efficacy and government subsidies combined with increased awareness could facilitate development and implementation of HPV vaccination in China.
Xiao-Na Song,Renzhi Zhang,Mi Wang,Junwei Lu 제어·로봇·시스템학회 2021 International Journal of Control, Automation, and Vol.19 No.3
This paper focuses on the synchronization of reaction-diffusion complex dynamical networks with coupling delay. In order to reflect the uncertainties of the controller, the nonfragile problem is considered. Furthermore, we also take into account the dissipativity analysis problem, which contains the H∞ performance and passivity performance in a unified framework. By utilizing the Lyapunov functional method, two sufficient delay-dependent conditions, which ensure the considered system is globally asymptotically synchronized onto the unforced node and strictly dissipative, are established in terms of linear matrix inequality. Finally, three numerical examples are employed to demonstrate the effectiveness of the design methods.
Xiao Xie,Qian Yang,Qiong Sun,Na Song,Liyan Yu,Lifeng Dong 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.113 No.-
Low water flux and poor chlorine resistance have become barriers to the applications of polyamidereverse osmosis (RO) membranes. Here, we design and develop a novel RO membrane with high permeabilityand self-healing chlorine resistance capability by doping alkaline-responsive polymer nanocontainersinto the polyamide layer. The nanocontainer is prepared through chemical adsorption andelectrostatic self-assembly with titanium dioxide (TiO2) as the core, calcium alginate (CA) and chitosan(CS) as the repair materials, and polyaspartic acid (PASP) as the responsive shell. In addition to increasingwater transport through the channels, the PASP shell of the nanocontainer reacts with alkali during conventionalalkaline cleaning and thereby the CA and CS are released to precisely repair the chlorinatedpolyamide and restore the NaCl rejection of the RO membrane. Upon release of the nanocontainer,TiO2 is also exposed to make the membrane antibacterial. The nanocontainer doping significantlyenhances surface roughness of the RO membrane, and the water permeability of the thin-film nanocompositemembrane doped with 0.005 wt% nanocontainers is increased by 43.71% to 5.03 L/m2 h bar comparedwith the blank membrane, while performing an excellent NaCl rejection of 98.02% and maintaining95.95% after 8000 ppm h active chlorine treatment and alkaline cleaning process.
Shuai Song,Xiao-Na Song,Nimisha Pathak,Ines Tejado Balsera 제어·로봇·시스템학회 2017 International Journal of Control, Automation, and Vol.15 No.4
In this work, we combine the active and adaptive control theories, and propose a novel synchronizationscheme for a class of fractional-order chaotic systems with different structure and different order. Based on the newversion of fractional-order Lyapunov stability theory, we design the adaptive controllers and updating laws of differentswitching. We use the fractional-order Lorenz chaotic system and the fractional-order Chen chaotic system asexamples to analyze the multi-switching synchronization process for fractional-order chaotic systems with differentstructures and different orders. Finally, numerical simulations are also given to illustrate the effectiveness and validationof the proposed method, and the model uncertainties and external disturbances are added to the consideredsystems to verify the robustness of the proposed controllers.
Xingru Li,Xiao-Na Song,Zhaoke Ning,Junwei Lu 제어·로봇·시스템학회 2021 International Journal of Control, Automation, and Vol.19 No.9
This paper is concerned with the quasi-synchronization problem for a class of hybrid coupled neuralnetworks with reaction diffusion, where the mismatched parameter and time-varying delay are considered in thesystem model. At first, a time-space sampled-data control is introduced, which not only effectively saves limitednetwork bandwidth compared to traditional control strategies, but also improves the cyber-security of communications. Next, based on the Lyapunov function method and inequality techniques, some sufficient conditions arederived to guarantee the quasi-synchronization of hybrid coupled neural networks with mismatched parameter andreaction-diffusion, and the convergence region of quasi-synchronization is derived using the improved Halanay’sinequality. Finally, the validity and practicability of the derived criteria are verified by three numerical examplesand an application example, respectively.
Yangchen Zhu,Xiao-Na Song,Mi Wang,Junwei Lu 제어·로봇·시스템학회 2020 International Journal of Control, Automation, and Vol.18 No.2
In this paper, the problem of asynchronous H∞ filtering is discussed for discrete-time Takagi-Sugeno (T-S) fuzzy Markov jump systems (FMJSs) with randomly occurred quantization. The asynchrony refers to the situation that the plant state and the filter state belong to different local state space regions, and the randomly occurred quantization is introduced to describe the quantisation phenomenon appearing in a probabilistic way. The aim of this study is to design an asynchronous H∞ filter for discrete-time T-S FMJSs such that the resulting filtering error system satisfies H∞ disturbance attention performance and finite-time boundedness. Then, the gains of the filter are obtained by solving a set of linear matrix inequalities. Finally, three examples are utilized to illustrate the effectiveness of our proposed approach.
Xunwu Yin,Xiao-Na Song,Mi Wang 제어·로봇·시스템학회 2020 International Journal of Control, Automation, and Vol.18 No.4
This paper is devoted to studying the issue of passive fuzzy controller design for a class of nonlinear distributed parameter systems represented by semi-linear parabolic partial differential equations. The main objective of this paper is to develop two kinds of fuzzy controllers, one is static output feedback controller (SOFC), the other is dynamic output feedback controller (DOFC), which can guarantee both the stability and passivity of the designed closed-loop system. For the purpose of achieving the anticipated target, in this paper, the semi-linear parabolic PDE systems are assumed to be exactly represented by a Takagi-Sugeno (T-S) fuzzy parabolic PDE model. Furthermore, two examples are given to demonstrate the effectiveness of the controller design scheme.
Tianshu Xu,Jianwei Xia,Xiao-Na Song,Zhen Wang,Hua-Sheng Zhang 제어·로봇·시스템학회 2021 International Journal of Control, Automation, and Vol.19 No.2
In this paper, the topic of sampled-data based dissipativity control for Takagi-Sugeno (T-S) fuzzy Markovian jump systems with incomplete transition rates and actuator saturation is addressed. First of all, by constructing an appropriate two-sided closed-loop function that captures the realistic information of sampling pattern, together with the free-matrix-based inequality approach, a sufficient condition is developed to ensure the considered systems to be strictly(Q,S,R)-γ-dissipative. Then, the corresponding mode-dependent sampled-data controllers are designed based on the given dissipativity condition. As a corollary, the controller design is presented for the system without disturbance. Furthermore, an optimization problem is investigated in order to maximize the domain of the attraction. Finally, simulation examples are offered to verify the feasibility of the results.