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Context-Based Intelligent Scheduling and Knowledge Push Algorithms for AR-Assist Communication Network Maintenance

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Computer Modeling in Engineering & Sciences 2019年第2期118卷 291-315页

作者： Lanlan Rui Yabin Qin biyao li Zhipeng Gao State Key Laboratory of Networking and Switching Technology Beijing University of Posts and TelecommunicationsBeijing100876China

Maintenance is an important aspect in the lifecycle of communication network *** problems in the maintenance of communication networks include inconvenient data carrying and sub-optimal scheduling of work orders,which significantly restrict the efficiency of maintenance ***,most maintenance systems are still based on cloud architectures that slow down data *** a focus on the completion time,quality,and load balancing of maintenance work,we propose in this paper a learning-based virus evolutionary genetic algorithm with multiple quality-ofservice(QoS)constraints to implement intelligent scheduling in an edge *** algorithm maintains the diversity of the population and improves the speed of convergence using a fitness function and a learning-based population generation *** test results demonstrate that the algorithm delivers good performance in terms of load balancing and QoS *** also propose a knowledge push algorithm based on a context model for intelligently pushing relevant knowledge according to the given *** simulation results demonstrate that our scheme can improve the efficiency of on-site maintenance.

关键词： Internet of things(IoT) edge computing Augmented Reality(AR) maintenance communication network.

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赤峰学院学报（哲学社会科学版） 2015年第1期36卷 19-23页

作者：陈俊达李碧瑶吉林大学文学院历史系吉林长春130012 东北师范大学外国语学院吉林长春130024

胡宝华先生的《20世纪以来日本中国史学著作编年》一书,2012年由中华书局正式出版。该书共收录了近百年来日本学界关于中国古代史研究的相关学术著作1200余部。作者在书中以"章目提要"的方式介绍了20世纪以来日本中国史研究的成果,为我... 详细信息

胡宝华先生的《20世纪以来日本中国史学著作编年》一书,2012年由中华书局正式出版。该书共收录了近百年来日本学界关于中国古代史研究的相关学术著作1200余部。作者在书中以"章目提要"的方式介绍了20世纪以来日本中国史研究的成果,为我们客观掌握原著的基本信息提供了可能。同时作者在编写此书时,审慎参考了大量相关书评,为入选著作的学术价值提供了可靠的保证。据笔者统计,书中共收录辽金史相关日本中国史研究著作81种,对于我们全面了解日本学界关于辽金史研究的整体发展大有裨益。

关键词：日本中国史辽金史研究著作

Effect on ion-trap quantum computers from the quantum nature of the driving field

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Science China(Information Sciences) 2020年第10期63卷 219-233页

作者： biyao YANG li YANG State Key Laboratory of Information Security Institute of Information EngineeringChinese Academy of Sciences State Key Laboratory of Cryptology School of Cyber Security University of Chinese Academy of Sciences

In this study, we evaluate the effect on ion-trap quantum computers（QCs） from the quantum nature of the driving field, and propose a theoretical limit for ion-trap QCs that may impact the design of quantum algorithms and realization of practical QCs. We obtain, for the first time, the permitted depth of logical operation for fault-tolerant ion-trap QCs. Physically, we provide an exact（full-quantum） description of the QC system, and present for the first time its time evolution after gate operations; mathematically,we solve problems such as certain summations of trigonometric series with any given precision. Comparing the actual state after CNOT gates driven by a quantized field with the expected state, we obtain the failure probability and estimate that the number of CNOT gates on the same pair of physical qubits is not more than 10;in one error-correction period, which is a physical limit that cannot be easily overcome. The conclusion can help determine the number of CNOT operations between coding and decoding in one error-correction period and can be used as a reference for quantum algorithm design.

关键词： quantum computing ion-trap quantum algorithm fault-tolerant quantum computation threshold theorem permitted depth of logical operation

施用不同草菇菌渣对生菜产量、品质及土壤理化性质的影响

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河南农业大学学报 2015年第2期49卷 203-207页

作者：田平平何铭烽李碧瑶方晓君王杰华南农业大学食品学院广东广州510642

利用堆置发酵后的草菇菌渣作为有机肥料,选择生菜为供试作物,以常规施肥和空白对照作为对比,对生菜的产量、品质等指标进行分析,并测定土壤有机质含量、孔隙度、保水性等理化性质,评价草菇菌渣的肥效及其对土壤理化性质的影响。结果表明... 详细信息

利用堆置发酵后的草菇菌渣作为有机肥料,选择生菜为供试作物,以常规施肥和空白对照作为对比,对生菜的产量、品质等指标进行分析,并测定土壤有机质含量、孔隙度、保水性等理化性质,评价草菇菌渣的肥效及其对土壤理化性质的影响。结果表明,菌渣处理能提高生菜产量,降低生菜中的硝酸盐、亚硝酸盐含量,提高Vc含量,且以油茶壳菌渣效果最好。菌渣处理后土壤的有机质含量显著提高,全氮含量略高于空白对照,但显著低于常规施肥。碱解氮、速效磷等含量显著低于常规施肥,速效钾变化不显著。与常规复合肥相比,施用草菇菌渣土壤肥效仍较低;菌渣处理能降低土壤比重和容重,提高总孔隙度,毛管孔隙度没有明显差别,非毛管孔隙度差别增加。

关键词：草菇菌渣肥效土壤理化性质

High resolution and high signal-to-noise ratio imaging with nearfield high-order optical signals

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Nano Research 2022年第9期15卷 8345-8350页

作者： Fei Wang Shuming Yang Shaobo li Shuhao Zhao biyao Cheng Chengsheng Xia State Key Laboratory for Manufacturing Systems Engineering International Joint Laboratory for Micro/Nano Manufacturing and Measurement TechnologiesXi’an Jiaotong UniversityXi’an 710049China School of Mechanical Engineering Xi’an Jiaotong UniversityXi’an 710049China

The properties of near-field optics have always been the focus of nano-measurement *** 11th order effective nearfield optical signal with an incident laser wavelength of 1,550 nm is obtained using a platinum-coated optical probe(Pt–Si probe).The experimental results show that the local electric field intensity of the Pt–Si probe is nearly 30 times higher than that of silicon probe(Si probe).Therefore,the highest 7th order near-field optical imaging results are obtained with the Pt–Si ***,near-field optical imaging is performed on samples such as gold grids and carbon nanotubes using the Pt–Si *** measurement results show that the high-order signal has the characteristics of less background,higher signal-to-noise ratio,and resolution up to 5.7 nm.

关键词： high-order optical signal local electric field enhancement high resolution optical probe

Preparation and characteristics of TEMPO-oxidized cellulose nanofibrils from bamboo pulp and their oxygen-barrier application in PLA films

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Frontiers of Chemical Science and Engineering 2017年第4期11卷 554-563页

作者： Wu, Bozhen Geng, biyao Chen, Yufei liu, Hongzhi Wu, Qiang li, Guangyao Zhejiang Univ Technol Coll Mat Sci & Engn Hangzhou 310014 Zhejiang Peoples R China Zhejiang Prov Collaborat Innovat Ctr Bamboo Resou Hangzhou 311300 Zhejiang Peoples R China Zhejiang Agr & Forestry Univ Sch Engn Hangzhou 311300 Zhejiang Peoples R China

Bleached bamboo kraft pulp was pretreated by 2,2,6,6-tetramethylpiperidine-l-oxy radical （TEMPO）- mediated oxidation using a TEMPO/NaBr/NaC10 system at pH = 10 in water to facilitate mechanical disintegration into TEMPO-oxidized cellulose nanofibrils （TO-CNs）. A series of TO-CNs with different carboxylate contents were obtained by varying amounts of added NaC10. An increase in carboxylate contents results in aqueous TO-CN dispersions with higher yield, zeta potential values, and optical transparency. When carboxylate groups are introduced, the DPv value of the TO-CNs remarkably decreases and then levels off. And the presence of hemicellulose in the pulp is favorable to TEMPO oxidization. After the oxidization, the native cellulose I crystalline structure and crystal size of bamboo pulp are almost maintained. TEM micrographs revealed that the degree of nanofibrillation is directly proportional to the carboxylate contents. With increasing carboxylate con- tents, the free-standing TO-CN films becomes more transparent and mechanically stronger. The oxygen permeability of PLA films drastically decreases from 355 for neat PLA to 8.4 mL-1 m a. d-1 after coating a thin layer of TO-CN with a carboxylate content of 1.8 mmol.g1. Therefore, inexpensive and abundant bamboo pulp would be a promising starting material to isolate cellulose nanfibrils for oxygen-barrier applications.

关键词： bamboo TEMPO cellulose nanofibrils oxy-gen barrier

Controlled growth of a single carbon nanotube on an AFM probe

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Microsystems & Nanoengineering 2021年第5期7卷 97-103页

作者： biyao Cheng Shuming Yang Wei li Shi li Shareen Shafique Dong Wu Shengyun Ji Yu Sun Zhuangde Jiang State Key Laboratory for Manufacturing Systems Engineering Xi'an Jiaotong UniversityXi'an 710049China National Institute of Metrology Beijing 102200China Department of Precision Machinery and Precision Instrumentation University of Science and Technology of ChinaAnhui 230027China Department of Mechanical and Industrial Engineering University of TorontoTorontoOntario M5S 3G8Canada

Carbon nanotubes(CNTs)can be used as atomic force microscopy(AFM)tips for high-resolution scanning due to their small diameter,high aspect ratio and outstanding wear ***,previous approaches for fabricating CNT probes are complex and poorly *** this paper,we introduce a simple method to selectively fabricate a single CNT on an AFM tip by controlling the trigger threshold to adjust the amount of growth solution attached to the *** yield rate is over 93%.The resulting CNT probes are suitable in length,without the need for a subsequent cutting *** used the CNT probe to scan the complex nanostructure with a high aspect ratio,thereby solving the long-lasting problem of mapping complex nanostructures.

关键词： thereby attached carbon

Inter-and intra-specific phenotypic variation of ecological stoichiometric traits in a mixed-oak secondary forest in China

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Journal of Forestry Research 2021年第6期32卷 2333-2347页

作者： Yueyao Feng Xuan li biyao Zhou Rong Hu Huanchao Zhang Jiading Yang Yanming Fang Co-Innovation Center for Sustainable Forestry in Southern China College of Biology and the EnvironmentKey Laboratory of State Forestry and Grassland Administration on Subtropical Forest Biodiversity ConservationNanjing Forestry UniversityNanjing210037People’s Republic of China College of Forestry Nanjing Forestry UniversityNanjing 210037People’s Republic of China

Ecological stoichiometry provides a framework for the balance and flow of elements between organisms and *** phenotypes have an important influence on the environmental adaptation and ecological evolution of *** have been few reports on inter-and intra-specific phenotypic variations of ecological stoichiometric traits for congeneric species in a mixed forest although such variations are well-documented at the species level at global,regional and local *** this study,total carbon(TC),nitrogen(TN),phosphorus(TP)and potassium(TK)were measured in leaves and the elemental phenotypes were statistically analyzed in four species of oaks—Quercus fabri,*** ***,*** and ***—in a mixed-oak secondary forest in Yushan,Jiangsu,*** average element concentrations in the four oak species were not relatively higher than previously reported for oaks from world and Chinese *** stoichiometry traits were correlated with tree height and diameter at breast height,indicating that phosphorous and potassium were positively correlated with tree size,while carbon was negatively correlated,especially the relationship between oak growth and total carbon or total phosphorus was obvious,and the study concluded that this was because plant growth depended on phosphorus storage and had opposite effects on leaf carbon *** on tree plasticity index and the coefficient of variation,there was medium variation in element *** plasticity index of total carbon levels was the lowest,and that of potassium the *** component analysis and cluster analysis showed that the intra-specific variation among the four oak species was higher than inter-specific *** the perspective of nutrient supply and ecological adaptation,this study creates a foundation for the management of secondary oak forest stands.

关键词： Ecological stoichiometry Quercus Elemental phenotype Intra-specific variation Inter-specific variation Ecological evolution Nutrient supply

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AgSbO3可见光光催化燃油脱氮性能研究

广东化工 2019年第12期46卷 35-35,53页

作者：李碧瑶温林凤朱文君陈芳婷陈佳佳黄仁昆宁德师范学院化学与材料学院

利用光催化技术进行燃油脱氮是目前研究热点话题。本文通过水热法分别以AgAc、AgNO3为前驱体合成AgSbO3,将其应用于可见光光催化模拟燃油脱氮性能研究。经研究发现以AgAc和AgNO3为前驱体合成的AgSbO3都具有可见光光催化活性。

关键词：燃油脱氮 AgSbO3 可见光光催化