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A QoT prediction technique based on machine learning and NLSE for QoS and new lightpaths in optical communication networks

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Frontiers of Optoelectronics 2021年第4期14卷 513-521页

作者： Yongfeng FU Jing CHEN weiming wu Yu HUANG Jie HONG Long CHEN Zhongbin LI Hainan Power Grid Co. Ltd.Haikou 570100China Power Dispatching Control Center of China Southern Power GridShenzhen 5180008China China Southern Power Grid Digital Power Grid Research Institute Co. Ltd.Guangzhou 511458China

In this paper,we proposed a quality of transmission(QoT)prediction technique for the quality of service(QoS)link setup based on machine learning classifiers,with synthetic data generated using the transmission equations instead of the Gaussian noise(GN)*** proposed technique uses some link and signal characteristics as input *** bit error rate(BER)of the signals was compared with the forward error correction threshold BER,and the comparison results were employed as *** transmission equations approach is a better alternative to the GN model(or other similar margin-based models)in the absence of real data(i.e.,at the deployment stage of a network)or the case that real data are scarce(i.e.,for enriching the dataset/reducing probing lightpaths);furthermore,the three classifiers trained using the data of the transmission equations are more reliable and practical than those trained using the data of the GN ***,we noted that the priority of the three classifiers should be support vector machine(SVM)>K nearest neighbor(KNN)>logistic regression(LR)as shown in the results obtained by the transmission equations,instead of SVM>LR>KNN as in the results of the GN model.

关键词： optical networks quality of transmission(QoT) quality of service(QoS) link establishment physical performances bit error rate(BER) machine learning

Inhibitory Effect of Bergenin on TLR-4/NF-κB Signal Pathway in Reducing Allergic Rhinitis in Mice

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Medicinal Plant 2021年第5期12卷 56-59页

作者： weiming wu Pengfei GE Jianqiao LI Yuefeng WANG Guangxi wuzhou Red Cross Hospital Wuzhou 543002 China The Second Affiliated Hospital of Guilin Medical University Guilin 541004 China Guilin Medical University Guilin 541199 China

[Objectives]To explore the effect and possible mechanism of bergenin in relieving allergic rhinitis(AR)in mice.[Methods]50 C57/BL6 mice were randomly divided into blank group(n=10),model group(n=10)and high(100 mg/kg),medium(50 mg/kg)and low(25 mg/kg)dose bergenin groups with 10 mice in each *** for the blank group,the other mice were sensitized by basic ways combined with attack to replicate the AR *** the 15th d of modeling(from the second d after the end of the basic modeling),the drug group was given bergenin orally for 15 d,and the blank group and model group were given the same volume of normal saline once a day.24 h after the last establishment of the model,the content of interleukin 4(IL-4),IL-6,TNF-αand IL-1βin nasal lavage fluid and serum of mice in each group was detected by *** expression of TLR-4,NF-κB and p-NF-κB in nasal mucosa of mice was detected by Western blot.[Results]Compared with the blank group,the content of inflammatory factors IL-4,IL-6,TNF-αand IL-1βin nasal lavage fluid and serum of model group was significantly increased,and the protein expression of TLR-4 and p-NF-κB was significantly *** the intervention of bergenin,the content of IL-4,IL-6,TNF-αand IL-1βin nasal lavage fluid and serum and TLR-4 and p-NF-κB protein in tissue was significantly inhibited in bergenin group.[Conclusions]Bergenin can effectively reduce allergic inflammation in AR model mice,and its mechanism may be related to inhibition of inflammation and down-regulation of TLR-4/NF-κB signal pathway.

关键词： Allergic rhinitis Bergenin Inflammatory response TLR-4/NF-κB signal pathway

Research of Lightweight Authentication Based on TR069

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Research of Lightweight Authentication Based on TR069

促进网络融合，服务经济社会发展——中国通信学会第六届学术年会

作者： Su Meng wu weiming Feng Shuang Institute of Computer Science and Technology Beijing University of Posts and Telecommunications College of Life Science Beijing Normal University

In order to solve the difficult problem of carrying on the long—distance management to the user terminal from the network side,the digital subscriber line(DSL)forum specially formulated the network management agreement named TR-069 used in the terminal *** the construction design,TR069 uses the client/server(C/S)model based on the Hyper Text Transfer Protocol(HTTP),and fully profited from lots of web mature technologies,which make the realization of the agreement relatively simple and has good *** in the application of TR069,security problems are *** article introduces one kind of lightweight audientication mechanism in view of the security problems in TR069.

关键词： TR069 Http digest authentication SSL/TLS shared key security

New Results on Deterministic Learning of Sampled-data Nonlinear Systems

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New Results on Deterministic Learning of Sampled-data Nonlin...

第37届中国控制会议

作者： weiming wu Cong Wang Chengzhi Yuan College of Automation and the Center for Control and Optimization South China University of Technology Department of Mechanical Industrial and Systems EngineeringUniversity of Rhode Island

In this paper,our main concern is to establish new exponential stability-based identification results for a class of Euler nonlinear sampled-data systems using deterministic *** first,a new deterministic learning law is designed based on the Lyapunov function *** analysis is provided to show that the resulting closed-loop linear time-varying（LTV）systems（containing tracking errors and parameter estimation errors） is exponentially *** the states of the closed-loop system converge to a small neighborhood around the origin ***,locally-accurate identification performance can be achieved under the new deterministic learning ***,simulation results on Duffing oscillator system are given to show the effectiveness of the proposed method.

关键词： PE condition Deterministic learning Exponential Stability Sampled-data systems Identification

Research of Centralized Power Equipment and Environment Monitoring System on Energy Saving and Emission Reduction

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Research of Centralized Power Equipment and Environment Moni...

促进网络融合，服务经济社会发展——中国通信学会第六届学术年会

作者： Li Xinghua wu weiming Zeng Qingtao School of Computer Beijing University of Posts and Telecommunications

With the continuous development of communication networks and the national slogan of "energy saving and emission reduction",communication enterprises are actively working on ways of saving energy and reducing *** paper briefly introduces and studies the role of Centralized Power Equipment and Environment Monitoring System in communication networks,also summarizes the characterized functions and application situation of the *** paper focuses on the analysis of the development of air- conditioning and switch power equipment for energy saving and emission reduction in the system,some directions of improving the performance of the equipments are also pointed *** last,the trend of from Centralized Power Equipment and Environment Monitoring System to Integrated Computer Information Platform is also discussed in this paper.

关键词： monitoring system power equipment and environment energy saving emission reduction

Clinical study on concurrent and sequential therapy of intensity modulated radiation therapy (IMRT) combined with NP regimen chemotherapy in the treatment of middle and advanced non-small cell lung cancer

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The Chinese-German Journal of Clinical Oncology 2007年第1期6卷 2-4页

作者： Xiaodong Jiang Da＇an Song weiming Zhang Jin wu Department of Radiotherapy First People＇s Hospital of Lianyungang Lianyungang 222002 China

Objective: To evaluate the clinical effects of concurrent and sequential therapy for middle and advanced stage non-small cell lung cancer (NSCLC) useing IMRT combined with NP regimen chemotherapy. Methods: Eighty patients with middle and advanced stage NSCLC were randomized into two groups. Forty patients were underwent sequential therapy and other 40 patients were underwent concurrent therapy. IMRT was used in radiotherapy and NP regimen of vinorelbine+cispatin (NP) was used in chemotherapy. Results: (1) The overall response (CR+PR) rate was 75% in concurrent group and 45% in sequential group (P<0.05); (2) The treatment courses were 84 days and 140 days for concurrent group and sequential group respectively (P<0.05); (3) One-year survival rate in concurrent group was 72.4% and 52.3% in sequential group respectively; (4) The toxic effects can be tolerable by all of patients. Conclusion: The concurrent chemo-radiotherapy has better overall re- sponse, one-year survival rate and shorter treatment course than the sequential chemo-radiotherapy, so it is a better method for the treatment of middle and advanced stage NSCLC, but the long term survival rate will be studied.

关键词： non-small cell lung cancer (NSCLC) intensity modulated radiation therapy (IMRT) chemotherapy concurrent therapy sequential therapy

脂肪酰胺类缓蚀剂对X65钢抗CO_2腐蚀的机理研究

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金属学报 2006年第5期42卷 533-536页

作者：杜海燕路民旭吴荫顺吴伟明北京科技大学材料科学与工程学院

通过电化学极化及电化学阻抗谱(EIS)测试研究了一种脂肪酰胺类缓蚀剂对X65低碳钢抗CO2腐蚀的机理,结果表明,该类缓蚀剂是一种阳极型缓蚀剂,属于界面吸附型,通过负催化机制产生缓蚀作用,对X65低碳钢抗CO2腐蚀具有良好的效果,其缓蚀效率... 详细信息

通过电化学极化及电化学阻抗谱(EIS)测试研究了一种脂肪酰胺类缓蚀剂对X65低碳钢抗CO2腐蚀的机理,结果表明,该类缓蚀剂是一种阳极型缓蚀剂,属于界面吸附型,通过负催化机制产生缓蚀作用,对X65低碳钢抗CO2腐蚀具有良好的效果,其缓蚀效率随浓度的增加而提高,存在极值现象,在0．5 g／L时达到最大．其阻抗谱有2个时间常数,相应的等效电路的描述码(CDC)为:R(C(R(CR)))．

关键词：低碳钢缓蚀剂 CO2腐蚀电化学极化电化学阻抗谱

电子合同的信息成本分析——基于经济学的立法路径研究

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情报杂志 2006年第12期25卷 18-21页

作者：吴卫明西安交通大学经济与金融学院西安710049

电子合同是合同的一种重要形态,同时又与传统合同具有一定的差异。电子合同在降低信息成本、增加社会效益方面具有优势,但对法律制度环境也更为敏感。应对电子合同进行经济分析,并在此基础上研究立法的路径,以达到立法的社会效益最大化... 详细信息

电子合同是合同的一种重要形态,同时又与传统合同具有一定的差异。电子合同在降低信息成本、增加社会效益方面具有优势,但对法律制度环境也更为敏感。应对电子合同进行经济分析,并在此基础上研究立法的路径,以达到立法的社会效益最大化。通过建立统一的电子认证制度,能够降低电子合同交易主体身份信息的鉴别成本。

关键词：电子合同信息成本交易成本电子认证

Theoretical investigation of InN growth on zirconia（111） substrates

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Theoretical investigation of InN growth on zirconia（111） s...

中国化学会第九届全国无机化学学术会议

作者： Yao Guo weiming wu Shaogang Hou Yongsheng Niu School of Chemistry and Environmental Engineering Anyang Institute of Technology

Indium nitride（In N） is predicted to be a promising material with potential applications in high speed electronics. The growth of high quality In N films suffers from the lack of lattice matched substrates. The cubic zirconia is suggested to be an ideal substrate for the growth of c-plane In N films because it shares the threefold rotational symmetry with the In N（0001） surface and has a lattice mismatch. In this work, the growth mechanism of In N on Ce-doped zirconia（Ce SZ）（111） substrates was investigated using first-principles calculations based on density functional theory. The adsorption energies of indium and nitrogen atoms on Ce SZ（111） surfaces were evaluated. We have found that the energetically favorable arrangement leads to epitaxial relationships between In N（0001）//Ce SZ（111）. Density of state（DOS） analysis revealed that the hybridization effect between the N2 p and Ce4 f orbitals plays a crucial role in determining the interface structure for the growth of In N on Ce SZ（111） surfaces. Furthermore, the stability of In-polar In N and that of N-polar In N on Ce SZ（111） substrates were investigated through the calculation of the adsorption energies of an atom on the first In N layer covering a Ce SZ（111） surface. Preferential formation of In N polarity is advantageous for device fabrication.

关键词： zirconia In N first-principles calculation