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8th International Congress of Information and Communication technology, ICICT 2018

作者： Zhang, Xiaobin Chen, Fucai Huang, ruiyang National Digital Switching System Engineering and Techological R and D Center ZhengZhou450002 China

relation classification plays an important role in the field of natural language processing (NLP). Previous research on relation classification has verified the effectiveness of using convolutional neural network (CNN) and recurrent neural network (rNN). In this paper, we proposed a model that combine the rNN and CNN (rCNN), which will Give full play to their respective advantages: rNN can learn temporal and context features, especially long-term dependency between two entities, while CNN is capable of catching more potential features. We experiment our model on the SemEval-2010 Task 8 dataset1, and the result shows that our method is superior to most of the existing methods. © 2018 The Authors. Published by Elsevier Ltd.

关键词： recurrent neural networks

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QoS-aware traffic classification architecture using machine learning and deep packet inspection in SdNs 8

QoS-aware traffic classification architecture using machine ...

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8th International Congress of Information and Communication technology, ICICT 2018

作者： Yu, Changhe Lan, Julong Xie, JiChao Hu, Yuxiang National Digital Switching System Engineering and Technological R and D Center Zhengzhou450002 China

The QoS-aware traffic classification techniques of SdN networks is the basis for network to provide fine-grained QoS traffic engineering. In this paper, we propose an architecture which combines deep packet detection and semi-supervised machine learning of multi-classifier in SdN. This architecture can classify flows into different QoS categories. Based on this, network can achieve fine-grained adaptive QoS traffic engineering. Moreover, through deep packet detection techniques, network can maintain a dynamic flow database. Classifier can adapt to the rapid emergence of network application and fickle traffic characteristics of current network by periodically re-training with the dynamic flow database. Experiments verify that our classification framework can achieve good classification accuracy. © 2018 The Authors. Published by Elsevier Ltd.

关键词： Network architecture

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Active perceptive dynamic scheduling mechanism based on negative feedback 8

Active perceptive dynamic scheduling mechanism based on nega...

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8th International Congress of Information and Communication technology, ICICT 2018

作者： Lv, Yingying Guo, Yunfei Chen, Qiang Cheng, Guozhen Chen, Yang National Digital Switching System Engineering and Technological R and D Center Zhengzhou Henan450002 China

With the popularization of the Internet, the production and living of people and even the security development of the country have been more and more dependent on cyberspace, the importance of cyberspace has become increasingly prominent. Network security should be paid more and more attention to. Mimicry defense is one of active defense technologies. We focused on the dHr architecture and give a research on mimicry scheduling mechanism based on negative feedback and we have analyzed the feasibility of this method in theory. © 2018 The Authors. Published by Elsevier Ltd.

关键词： Network security

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Tailoring the Electronic Metal-Support Interactions in Supported Silver Catalysts through Al modification for Efficient Ethylene Epoxidation

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Angewandte Chemie 2024年第16期136卷

作者： dr. Hongling Yang dr. Ganggang Li dr. Qinggang Liu dr. Haixia Cheng dr. Xiaoxu Wang Prof. Jie Cheng dr. Guoxia Jiang dr. Fenglian Zhang Prof. Zhongshen Zhang Prof. Zhengping Hao National Engineering Laboratory for VOCs Pollution Control Material & Technology Research Center for Environmental Material and Pollution Control Technology University of the Chinese Academy of Sciences Beijing 101408 China Beijing Key Laboratory for VOCs Pollution Prevention and Treatment Technology and Application of Urban Air Beijing Municipal Research Institute of Eco-Environmental Protection Beijing 100037 China Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China Material Digital R&D Center China Iron & Steel Research Institute Group Beijing 100081 China DP Technology Beijing 100080 China

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Effect of super-fast freezing before rigor mortis on quality of bovine M. longissimus lumborum

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Meat Science 2025年 228卷

作者： Jiqiang Li Huizhen Wang rongrong Liang Yanwei Mao Xiaoyin Yang Xin Luo Lixian Zhu Yimin Zhang Lab of Beef Processing and Quality Control College of Food Science and Engineering Shandong Agricultural University Tai'an Shandong 271018 China National R&D Center for Beef Processing Technology Tai'an Shandong 271018 China International Joint Research Lab (China and Greece) of Digital Transformation as an Enabler for Food Safety and Sustainability Tai'an Shandong 271018 China Shandong Provincial Key Laboratory of Quality Safety Monitoring for Animal Products and Veterinary Drug Innovation Tai'an Shandong 271018 China

In order to explore the effects of super-fast freezing (SFF) on beef quality, conventional chilling (CC, 0 ± 2 °C) and very fast chilling (VFC, hot-boned beef loins chilled at −30 °C...

In order to explore the effects of super-fast freezing (SFF) on beef quality, conventional chilling (CC, 0 ± 2 °C) and very fast chilling (VFC, hot-boned beef loins chilled at −30 °C and then stored at 0 ± 2 °C to bring the temperature down to 0 °C within 5 h post-mortem ) were used as controls to investigate the effects of three SFF treatments (−30 °C until the core temperature decreased to −3 °C (SFF–I), −7 °C (SFF–II) and −10 °C (SFF–III), and then stored at 0 ± 2 °C until 24 h post-mortem ) on beef tenderness, meat color, water holding capacity, and other related indicators. The results showed that both SFF and VFC improved the tenderness of beef at the early stage of storage compared with CC, and of these SFF–II and SFF–III were the most effective. The SFF has the potential to reduce the cooking loss but increases the purge loss of beef. In addition, SFF has a negative effect on the meat color, but the a * value is still within the acceptable range of consumers. After being treated by SFF, the rate of beef glycolysis was delayed post-mortem . In addition, SFF treatment did not cause a large degree of shortening of sarcomere, but disrupted the muscle fiber structure, contributing to the improvement of muscle tenderness. The results indicate that pre-rigor beef muscles can be deeply frozen, which will not cause obvious shortening with proper freezing and thawing procedures.

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Extracellular polymeric substance-intercalated MXene membrane for osmotic power generation

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Chemical engineering Journal 2025年 515卷

作者： Cao, da-Qi Tang, Kai Yihuo, Guri Jin, Yan Song, Yi-Xuan Wu, Yun-Feng Zhang, Wen-Yu Zhang, Zhongguo Ma, Ming-Guo Song, Li Hao, Xiao-di Sino-Dutch R&D Centre for Future Wastewater Treatment Technologies/Key Laboratory of Urban Stormwater System and Water Environment Beijing University of Civil Engineering and Architecture Beijing100044 China Beijing Municipal Research Institute of Eco-Environmental Protection Beijing100037 China National Engineering Laboratory of Circular Economy Institute of Resources and Environment Beijing Academy of Science and Technology Beijing100095 China Research Center of Biomass Clean Utilization MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy Beijing Key Laboratory of Lignocellulosic Chemistry College of Materials Science and Technology Beijing Forestry University Beijing100083 China National Synchrotron Radiation Laboratory Chinese Academy of Sciences Center for Excellence in Nanoscience University of Science and Technology of China Anhui Hefei230029 China

Extracellular polymeric substances (EPSs) recycled from excess sludge in wastewater treatment plant are biological macromolecules and high value-added materials, because of containing abundant characteristic functional groups. In this work, using EPSs as an intercalation agent between two-dimensional (2d) transition metal carbide and nitride (MXene) nanosheets, EPS-intercalated MXene (EPS-M) membranes were successfully constructed for reverse electrodialysis (rEd) salinity gradient energy harvesting. The interlayer spacing of MXene nanosheets in the EPS-M membranes was constrained effectively at 1.48 ± 0.02 nm regardless of environmental conditions. For the optimized EPS-M membrane with 10 % EPS mass content, the ultimate strength was 71 MPa, which was 6 times higher than that obtained by pristine MXene membrane. The typical groups such as hydroxyl and carboxyl groups present in EPS enhanced the negative surface charge of EPS-M membranes, resulting in high ion permeability and cation selectivity. The enhanced hydrophilicity induced by EPS contributed to the reduced membrane resistance. A model (0.5 M/0.01 M NaCl solutions) was used to investigate the salinity gradient power generation of sea water/secondary effluent of WWTP in rEd process with EPS-M membrane;and the maximum output power density reached 5.89 W m−2, which was 1.86 times higher than that obtained using the pristine MXene membrane. This study opens a novel application of high value-added recycled EPS, which can be considered as a cost-effective biological composite material to improve MXene 2d membrane performance compared to the macromolecules such as nanofiber and cellulose. © 2025 Elsevier B.V.

关键词： Wastewater reclamation

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An Aware-Scheduling Security Architecture with Priority-Equal Multi-Controller for SdN

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china Communications 2017年第9期14卷 144-154页

作者： Chao Qi Jiangxing Wu Guozhen Cheng Jianjian Ai Shuo Zhao National Digital Switching System Engineering & Technological R&D Center

Current SdN controllers suffer from a series of potential attacks. For example, malicious flow rules may lead to system disorder by introducing unexpected flow entries. In this paper, we propose Mcad-SA, an aware decision-making security architecture with multiple controllers, which could coordinate heterogeneous controllers internally as a "big" controller. This architecture includes an additional plane, the scheduling plane, which consists of transponder, sensor, decider and scheduler. Meanwhile it achieves the functions of communicating, supervising and scheduling between data and control plane. In this framework, we adopt the vote results from the majority of controllers to determine valid flow rules distributed to switches. Besides, an aware dynamic scheduling(AdS) mechanism is devised in scheduler to intensify security of Mcad-SA further. Combined with perception, AdS takes advantage of heterogeneity and redundancy of controllers to enable the control plane operate in a dynamic, reliable and unsteady state, which results in significant difficulty of probing systems and executing attacks. Simulation results demonstrate the proposed methods indicate better security resilience over traditional architectures as they have lower failure probability when facing attacks.

关键词： multi-controller security architec-ture aware scheduling

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Hardware acceleration resource allocation mechanism for VNF 8

Hardware acceleration resource allocation mechanism for VNF

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8th International Congress of Information and Communication technology, ICICT 2018

作者： Fan, Hongwei Hu, Yuxiang Zhang, Shaojun ren, Quan National Digital Switching System Engineering and Technological R and D Center Kim Street No. 7 Zhengzhou450000 China

Improving the performance for VNF (Virtualized Network Function) by hardware acceleration is a hot research topic in SdN/NFV architecture. After introducing the acceleration resource for VNF, how to implement uniform deployment and allocation of the acceleration resources is an urgent problem to be solved. Thus in this paper, a unified deployment architecture of acceleration resource for VNF is proposed firstly. On the basis of architecture, the problem of acceleration resource allocation is modeled. By analyzing the influence of acceleration resource for VNF on deployment of service chains, we propose the evaluation index of acceleration resource allocation algorithm for VNF. Finally, we design a two-stage acceleration resource allocation algorithm to solve the problem. The experimental results show that the proposed algorithm can rationally allocate acceleration resources to nodes in the entire network and improve the efficiency of acceleration resource utilization. © 2018 The Authors. Published by Elsevier Ltd.

关键词： resource allocation

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Orchestrating Network Functions in Software-defined Networks

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china Communications 2017年第2期14卷 104-117页

作者： Hongchao Hu Lin Pang Zhenpeng Wang Guozhen Cheng National Digital Switching System Engineering & Technological R&D Center Zhengzhou 450002 China

*** networking(SdN) enables *** companies to participate in the network function innovations. A number of instances for one network function will inevitably *** in the network. Although some orchestration architecture has been proposed to chain network functions, rare works are focused on how to optimize this process. In this paper, we propose an optimized model for network function orchestration, function combination model(FCM). Our main contributions are as following. First, network functions are featured with a new abstraction, and are open to external providers. And FCM identifies network functions using unique type, and organizes their instances distributed over the network with the appropriate way. Second, with the specialized demands, we can combine function instances under the global network views, and formulate it into the problem of Boolean linear program(BLP). A simulated annealing algorithm is designed to approach optimal solution for this BLP. Finally, the numerical experiment demonstrates that our model can create outstanding composite schemas efficiently.

关键词： software-defined network network function function orchestrating

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Toward a Scalable SdN Control Mechanism via Switch Migration

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china Communications 2017年第1期14卷 111-123页

作者： Guozhen Cheng Hongchang Chen Hongchao Hu Zhiming Wang National Digital Switching System Engineering & Technological R&D Center Zhengzhou 450002 China

dynamic Controller Provisioning Problem(dCPP) is a key problem for scalable SdN. Previously, the solution to this problem focused on adapting the number of controllers and their locations with changing network conditions, but ignored balancing control loads via switch migration. In this paper, we study a scalable control mechanism to decide which switch and where it should be migrated for more balanced control plane, and we define it as Switch Migration Problem(SMP). The main contributions of this paper are as follows. First, we define a SdN model to describe the relation between controllers and switches from the view of loads. Based on this model, we form SMP as a Network Utility Maximization(NUM) problem with the objective of serving more requests under available control resources. Second, we design a synthesizing distributed algorithm for SMP--- distributed Hopping Algorithm(dHA), by approximating our optimal objective via Log-Sum-Exp function. In dHA, individual controller performs algorithmic procedure independently. With the solution space F, we prove that the optimal gap caused by approximation is at most 1/βlog|F|, and dHA procedure is equal to implementation of a time-reversible Markov Chain process. Finally, the results are corroborated by several numerical simulations.

关键词： software-defined networking scalability switch migrations Markov chain

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