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Xiaoshuang Liu,Jianfeng Li,Guixia Kang 한국산학기술학회 2015 SmartCR Vol.5 No.6
The exploitation of an energy-efficiency deployment scheme for green wireless sensor networks (WSNs) is a challenging issue since WSNs have become more complex and have achieved a larger scale. Meanwhile, most of the current deployment schemes cannot be transferred directly into complex networks. Therefore, this paper presents a deployment scheme to address this question and achieve green, networked WSNs. First, a hierarchical structure is proposed to deploy WSNs generally. Then, based on this structure, an energy optimization problem is constructed to realize green WSNs. Next, the question is solved by an optimal path and minimal energy consumption algorithm (OPMECA). Extensive simulations demonstrate that our energy-efficiency deployment scheme is applicable to green WSN deployment through the network lifetime and energy consumption in comparison with other algorithms.
Xiaoshuang Zhou,Peixin Zhao,Lu Lin 한국통계학회 2014 Journal of the Korean Statistical Society Vol.43 No.1
Empirical likelihood inferences for the parameter component in an additive partially linearerrors-in-variables model with longitudinal data are investigated in this article. Acorrected-attenuation block empirical likelihood procedure is used to estimate the regressioncoefficients, a corrected-attenuation block empirical log-likelihood ratio statistic issuggested and its asymptotic distribution is obtained. Compared with the method based onnormal approximations, our proposed method does not require any consistent estimatorfor the asymptotic variance and bias. Simulation studies indicate that our proposed methodperforms better than the method based on normal approximations in terms of relativelyhigher coverage probabilities and smaller confidence regions. Furthermore, an example ofan air pollution and health data set is used to illustrate the performance of the proposedmethod.
Xiaoshuang Luo,Haitao Duan,Jian Li,Shengpeng Zhan,Dan Jia,Jiesong Tu,Yinhua Li,Yaping Chen 대한금속·재료학회 2022 METALS AND MATERIALS International Vol.28 No.4
This study emphasizes the effect of ultrasonic surface rolling (USR) on the surface roughness, hardness, and tribologicalproperties of ductile iron under different normal loads. Results revealed that surface roughness was reduced by 96% andsurface hardness increased by 37.8% after USR treatment. By increasing normal load, the average friction coefficient of theUSR-treated specimens decreased, but the wear rate of both USR-treated and untreated specimens increased, mainly becausethe dominant wear mechanism changed. The average friction coefficient of the untreated specimen (~ 0.32) was much higherthan the USR-treated specimen (~ 0.24) when the normal load was 30 N. However, the wear rate of the USR-treated specimenwas larger than that of the untreated specimen when the normal load was greater than 20 N because the higher hardnessabrasive particles on the worn surface of the USR-treated specimen not only accelerated abrasive particle wear, but alsocaused more severe adhesive wear.
Percolation Theory-Based Exposure-Path Prevention for 3D-Wireless Sensor Networks Coverage
( Xiaoshuang Liu ),( Guixia Kang ),( Ningbo Zhang ) 한국인터넷정보학회 2015 KSII Transactions on Internet and Information Syst Vol.9 No.1
Different from the existing works on coverage problems in wireless sensor networks (WSNs), this paper considers the exposure-path prevention problem by using the percolation theory in three dimensional (3D) WSNs, which can be implemented in intruder detecting applications. In this paper, to avoid the loose bounds of critical density, a bond percolation-based scheme is proposed to put the exposure-path problem into a 3D uniform lattice. Within this scheme, the tighter bonds of critical density for omnidirectional and directional sensor networks under random sensor deployment―a 3D Poisson process are derived. Extensive simulation results show that our scheme generates tighter bounds of critical density with no exposure path in 3D WSNs.
Estimation and inference for additive partially nonlinear models
Xiaoshuang Zhou,Peixin Zhao,Zehui Liu 한국통계학회 2016 Journal of the Korean Statistical Society Vol.45 No.4
In this paper, we extend the additive partially linear model to the additive partially nonlinear model in which the linear part of the additive partially linear model is replaced by a nonlinear function of the covariates. A profile nonlinear least squares estimation procedure for the parameter vector in nonlinear function and the nonparametric functions of the additive partially nonlinear model is proposed and the asymptotic properties of the resulting estimators are established. Furthermore, we apply the empirical likelihood method to the additive partially nonlinear model. An empirical likelihood ratio for the parameter vector and a residual adjusted empirical likelihood ratio for the nonparametric functions have been proposed. Wilks phenomenon is proved and the confidence regions for the parametric vector and the nonparametric functions are constructed. Some simulations have been conducted to assess the performance of the proposed estimating procedures. The results have demonstrated that both the procedures perform well in finite samples. Compared with the results from the empirical likelihood method with those from the profile nonlinear least squares method, the empirical likelihood method performs better in terms of coverage probabilities and average widths of confidence bands.
Cooperative and Competitive Effect in Heterogeneous Networks of Healthcare System
( Xiaoshuang Liu ),( Guixia Kang ),( Ningbo Zhang ),( Yanyan Guo ) 한국인터넷정보학회 2015 KSII Transactions on Internet and Information Syst Vol.9 No.11
Different network provides different service. To maximize the profit, heterogeneous networks form a whole, which may either compete or cooperate with each other. In this paper, the healthcare monitor network architecture is introduced to build the competitive and cooperative mechanisms of heterogeneous networks which contain three networks, namely, cellular network, WLAN and WMAN. This paper considers the natural growth rate of the network with competitive and cooperative effects. Then, the stability of the proposed model and its equilibrium points are analyzed by the ordinary differential principle. Finally, simulation results show that the natural growth rate cannot increase the profit of the network, but effective cooperative among heterogeneous networks can increase the profit of each network, and competitive may decrease the profit of each network.
Proteome Changes in Penicillium expansum Grown in a Medium Derived from Host Plant
( Xiaoshuang Xia ),( Huan Li ),( Fei Liu ),( Ye Zhang ),( Qi Zhang ),( Yun Wang ),( Peiwu Li ) 한국미생물 · 생명공학회 2017 Journal of microbiology and biotechnology Vol.27 No.3
Penicillium expansum causes blue mold rot, a prevalent postharvest disease of pome fruit, and is also the main producer of the patulin. However, knowledge on the molecular mechanisms involved in this pathogen-host interaction remains largely unknown. In this work, a twodimensional gel electrophoresis-based proteomic approach was applied to probe changes in P. expansum 3.3703 cultivated in apple juice medium, which was used to mimic the in planta condition. The results showed that the pH value and reducing sugar content in the apple juice medium decreased whereas the patulin content increased with the growing of P. expansum. A total of 28 protein spots that were up-regulated in P. expansum when grown in apple juice medium were identified. Functional categorization revealed that the identified proteins were mainly related to carbohydrate metabolism, secondary metabolism, protein biosynthesis or degradation, and redox homeostasis. Remarkably, several induced proteins, including glucose dehydrogenase, galactose oxidase, and FAD-binding monooxygenase, which might be responsible for the observed medium acidification and patulin production, were also detected. Overall, the experimental results provide a comprehensive interpretation of the physiological and proteomic responses of P. expansum to the host plant environment, and future functional characterization of the identified proteins will deepen our understanding of fungi-host interactions.
메시지 프레이밍과 증거 유형에 따른 중국 청소년 비만예방 메시지 효과
서소상(Xiaoshuang Shu),최유진(Youjin Choi) 한국콘텐츠학회 2018 한국콘텐츠학회논문지 Vol.18 No.3
점차 심각해지고 있는 중국 청소년 비만예방 메시지 개발을 위해 본 연구는 비만 관여도과 메시지 프레이밍 유형 간의 상호작용, 비만 관여도와 증거 유형 간의 상호작용이 비만예방 태도와 행동의도에 미치는 영향을 살펴보았다. 메시지 프레이밍 유형은 이익 프레이밍과 손실 프레이밍으로 구분하였고, 증거는 개인경험을 바탕으로 하는 내러티브와 객관적 수치에 기반한 통계적 형식으로 구분하였다. 중국 청소년 368명이 참여한 연구 분석 결과 수용자의 관여도, 메시지 프레이밍과 증거 유형이 비만예방 태도와 행동의도에 유의미한 영향을 보였다. 관여도가 높은 집단은 손실 프레임과 통계적 증거에 노출되었을 때 더 긍정적 비만예방 태도와 행동의도를 보이는 것으로 나타났다. 관여도가 낮은 집단은 이익 프레임과 내러티브에 노출되었을 때 더 긍정적 비만예방 태도와 행동의도를 보이는 것으로 나타났다. 따라서 관여도가 높은 집단을 설득하기 위해서는 통계에 바탕을 둔 손실프레이밍을, 관여도가 낮은 집단을 설득하기 위해서는 내러티브에 바탕을 둔 이익프레이밍을 제시할 것을 제안한다. To develop prevention messages for increasingly severe adolescent obesity in China. this study tested interaction effects between obesity involvement and message framing, and between obesity involvement and evidence types on obesity prevention attitudes and behavioral intentions. Message framing types are categorized with a gain frame and a loss frame. Evidence types are classified into narratives based on personal experiences and statistics based on objective numerical proofs. Three hundred sixty eight Chinese adolescents participated in the study. Results found that involvement, framing, and evidence types had significant effects on attitudes and behavioral intentions to obesity prevention. Adolescents highly involved in obesity were more likely to show positive attitudes and behavioral intentions when exposed to loss framing and statistical evidence. Those with low involvement showed positive attitudes and behavioral intentions after exposed to gain framing and narratives. Thus, we suggest that loss frames with numerical data should be developed to persuade adolescents with high involvement, and gain frames with narratives should be developed for those with low involvement.
Jiajun Tao,Xiaoshuang Ding 한국중국어교육학회 2022 중국어교육과연구 Vol.- No.37
开展来华研究生学术汉语需求调查研究是构建学术汉语教学与研究体系的起点和基础。本研究采用深度访谈法,对20名来华研究生的学术汉语需求进行了调查。访谈对象包括11名硕士生和9名博士生,所学专业涉及经济学、法学、教育学、文学及管理学等多个学科。访谈结果显示,来华研究生普遍存在学术汉语能力有限、难以胜任学术研究的情况;其对学术汉语存在较大需求,亟需开设相关的学术汉语课程,尤其是学术汉语写作课程。针对留学生的需求以及存在的问题,本文建议完善汉语水平考试(HSK)体系,增设学术类汉语水平考试;鼓励高校分专业开展学术汉语诊断性评估测试;适当增设学术汉语相关课程。
Experimental study on the performance of compensation grouting in structured soil
Zheng, Gang,Zhang, Xiaoshuang,Diao, Yu,Lei, Huayang Techno-Press 2016 Geomechanics & engineering Vol.10 No.3
Most laboratory test research has focused on grouting efficiency in homogeneous reconstituted soft clay. However, the natural sedimentary soils generally behave differently from reconstituted soils due to the effect of soil structure. A series of laboratory grouting tests were conducted to research the effect of soil structure on the performance of compensation grouting. The effects of grouting volume, overlying load and grouting location on the performance of compensation grouting under different soil structures were also studied. Reconstituted soil was altered with added cement to simulate artificial structured soil. The results showed that the final grouting efficiency was positive and significantly increased with the increase of stress ratio within a certain range when grouting in normally consolidated structured clay. However, in the same low yield stress situation, the artificial structured soil had a lower final grouting efficiency than the overconsolidated reconstituted soil. The larger of normalized grouting volume could increase the final grouting efficiency for both reconstituted and artificial structured soils. Whereas, the effect of the overlying load on final grouting efficiencies was unfavourable, and was independent of the stress ratio. As for the layered soil specimens, grouting in the artificial structured soil layer was the most efficient. In addition, the peak grouting pressure was affected by the stress ratio and the overlying load, and it could be predicted with an empirical equation when the overlying load was less than the yield stress. The end time of primary consolidation and the proportion of secondary consolidation settlement varied with the different soil structures, grouting volumes, overlying loads and grouting locations.