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2019 International Conference on Industrial Control Network and system engineering research, ICNSEr 2019

作者： Lixin, Miao Qingrang, Liu Xin, Wang National Digital Switching System Engineering R and D Center Zhengzhou Henan China

ISBN: (纸本)9781450366274

With the boom of information technology, heterogeneous networks with various functions emerge in endlessly, heterogeneous fusion network has become the inevitable trend of the development of the next generation network. To realize communication between heterogeneous networks, network forwarding equipment is essential. Traditional forwarding devices only support fixed protocol configuration and lack scalability, so they cannot support new network protocols. In view of this situation, this paper proposes a software defined protocol independent parser based on FPGA. The software defines the parsing process, giving the parser flexible and programmable features. It can analy multiple protocol packets and extract key information needed for protocol conversion without changing hardware devices. We implemented the parser through a high-performance FPGA platform and evaluated hardware resource overhead and performance. Experimental results show that our parser can perform protocol parsing operations that are protocol independent. Although the throughput is slightly lower than other parsers, there is less resource overhead. © 2019 Association for Computing Machinery.

关键词： Heterogeneous networks

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Application of improved feature pre-processing method in prevention and control of electricity charge risk

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International Journal of Performability engineering 2019年第9期15卷 2453-2461页

作者： Wu, Huaiguang Shi, Yongsheng Qian, Shenyi Tao, Hongwei Ma, Jiangtao Zhengzhou University of Light Industry Zhengzhou450001 China National Digital Switching System Engineering and Technological R and D Center Zhengzhou450001 China

With the increase in power data, past data processing technologies cannot meet the needs of rapid processing and intelligent analysis of massive data. In order to solve the problems of current performance bottleneck in the calculation of power big data and recover users' electricity tariff arrears in a timely manner, we use the technology of combining parallel computing with feature expansion to establish a feature expansion method based on Spark distributed computing (FESdC). According to the data generated by the proposed method, we use a parallel logistic regression model to predict the arrears probability of future electricity users, which can effectively prevent and resolve the risk of electricity tariff recovery (ETr). Compared with the data processing method for single process (dPSP), the proposed method not only increased the accuracy of prediction, but also improved the performance of processing data. © 2019 Totem Publisher, Inc. All rights reserved.

关键词： recovery

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research on Network Application of Intelligent Campus Based on SdN technology

Research on Network Application of Intelligent Campus Based ...

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Image Processing and Computer Applications (ICIPCA), IEEE International Conference on

作者： Yunyi Mei Qi Shao Qingzhong Gao Tong Zhao Yanlong Zhang Lingzhi Jing Yang Yu CNPC Engineering Technology R&D Company Limited Beijing China National Engineering Research Center of Oil & Gas Drilling and Completion Technology Beijing China Kunlun Digital Technology Co. Ltd. Beijing China CNPC Great Wall Drilling Company Beijing China

There are some problems in traditional network architecture, such as traffic can not be real-time scheduling, business information can not be visualized, operation and maintenance is complex, and fault location efficiency is low. In order to meet the needs of “digital Petroleum” network infrastructure construction, a company introduced SdN technology into the campus office network, and carried out network optimization management and innovation practice, this paper puts forward a network transformation scheme based on SdN “The network follows the people”, through deploying SdN control server and adjusting the network equipment configuration, the office network can be expanded flexibly and maintained efficiently, to meet the needs of different types of application traffic classification management and intelligent precision scheduling, effectively improve the level of intelligent network management.

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A dual-band Bandpass Filter with The Second Passband Independently Tunable

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Journal of Physics: Conference Series 2022年第1期2187卷

作者： Hong Yang dewei Zhang Yi Zhang Chenge Bian Guanghui Sun China National Digital Switching System Engineering and Technology R&D Center Zhengzhou Henan 450001 China

This article proposes a dual-band bandpass filter (BPF) based on stub-loaded resonator (SLr) with the second passband independently tunable. Varactors loaded on the end of the central stub are employed to independently tune the second passband. Two shunt quarter-wavelength open stubs and source-load (S-L) coupling are applied to generate transmission zeros (TZs) to enhance the selectivity and improve the out-band rejection. For verification, a tunable dual-band BPF is designed, fabricated and tested, which realizes frequency tuning range (FTr) of the second passband from 2.24 to 2.71 GHz with constant fractional bandwidth (CFBW) of 1.5±0.4%. The simulated and measured results are in good accordance.

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Minimally buffered router and deflection routing algorithm for 3d mesh NoC

Minimally buffered router and deflection routing algorithm f...

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International Conference on Intelligent Computing, Communication and devices, ICCd 2017

作者： Sun, Meidong Liu, Qinrang Yan, Binghao Wang, Xiaolong National Digital Switching System Engineering & Technological R&D Center Zhengzhou China

ISBN: (纸本)9789811089435

The 3d NoC, which blends 3d IC with NoC, overcomes the performance bottleneck of 2d NoC. However, the conventional buffered routers in 3d NoC have the problem of consuming a large amount of resources. In this paper, we propose 3d minimally buffered router using priority deflection (3d MinBPd). This router is the 3d extension of MinBWd and introduces TSV Buffers at the same time. Then, a priority-based deflection routing algorithm is proposed, which only needs local information to compute the priority of flit. The experimental results show that the performance of the 3d MinBPd is better than the reference objects’ under the network of 8 × 8 × 4, which is similar to the traditional buffered routers’ in the low and medium packet injection rate. © Springer Nature Singapore Pte Ltd. 2019.

关键词： Network-on-chip

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Secure Communication Using WFrFT-dSSS Based on Chaotic Cyclic Shift

Secure Communication Using WFRFT-DSSS Based on Chaotic Cycli...

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IEEE International Conference on Communications in China (ICCC)

作者： Chenxuan Gao Yichen Wu Yu Zhang Department of Electronic Engineering Tsinghua University Beijing P. R. China Key Laboratory of Digital TV System of Shenzhen City Research Institute of Tsinghua University in Shenzhen Shenzhen P. R. China Beijing National Research Center for Information Science and Technology (BNRist)

Space-air-ground-sea integrated communication is expected to be an important research direction in the future to meet the growing demand for efficiency, reliability and coverage. However, due to the open channel of wireless communication, the security of the communication network is facing great challenge. In this paper, a weighted fractional Fourier transform (WFrFT) direct sequence spread spectrum (dSSS) system based on chaotic cyclic shift is proposed. Specifically, a chaotic sequence is generated to control the cyclic shifts of the original spreading sequence and then the shifted sequences are encrypted through WFrFT before spreading the information bits. Simulation results demonstrate the practicability of chaotic cyclic shifted WFrFT (CCS-WFrFT) spreading sequence and the superior security performance of the proposed system.

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Fluorine-Free Paraffin Binder-Based dry Thick Electrodes Toward Sustainable and Efficient Battery Manufacturing

SSRN

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SSrN 2024年

作者： Kim, Min Kyung Yu, Taegyun Jang, Sungbin Lee, Juho Jang, Min Oh, Hyeseong Cha, Hyungyeon Lee, Huiyeol Kang, Joonhee Lee, Seung Min Shim, Hyeongseok Lee, Kwon-Hyung Song, Gyujin Jin, Wooyoung Kim, Tae-Hee Jeong, Kyeong-Min Han, Joong Tark Yoo, Jung-Keun Song, Sanghyun Park, Myoungkeon Seong, Jinwoo Kim, dongoh Choi, Hyunwoo Seong, Minjong Lim, Min Jin Hwang, Wook ryol Nam, Jieun Jo, Sanghoon Kim, Jinsoo Ulsan Advanced Energy Technology R&D Center Korea Institute of Energy Research Ulsan Korea Republic of Department of Nano Fusion Technology Pusan National University Busan Korea Republic of Department of Organic Material Science and Engineering Pusan National University Busan Korea Republic of Ulsan Korea Republic of Changwon Korea Republic of Changwon Korea Republic of Seoul Korea Republic of R&D Center Rechargeable Battery Division Hanwha Momentum Seongnam Korea Republic of School of Mechanical Engineering Gyeongsang National University Jinju Korea Republic of R&D Center Yunsung F&C Co. Ltd. Anseong Korea Republic of Multiphysics Digital Twin Lab Trinity Engineering Seoul Korea Republic of

dry electrodes are being actively developed for sustainable and efficient battery manufacturing. Currently, polytetrafluoroethylene (PTFE) binders dominate dry processes, yet their production contributes to significant CO2 emissions, and concerns persist regarding their high fluorine content, especially considering evolving per- and polyfluorinated substances (PFAS) restrictions. Moreover, the poor adhesion of bare current collectors necessitates a wet coating-based primer layer with this binder. In this study, we introduce an alternative dry processing concept based on a thermoplastic fluorine-free binder with low environmental impact and high productivity. Paraffin, a short-chain family of saturated hydrocarbons known as an n-alkane, is the most stable chemical species owing to its C-H covalent bonds and the wide gap between highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energies. It also has a low melting temperature, allowing facile cohesion of the active materials to be interconnected by mild pressing activation. This novel dry electrode binder provides substantial electrochemical properties based on both NCM811 cathodes over 5 mAh cm−2 for 500 cycles. Furthermore, it implements true solvent-free adhesion without the wet-coating of primers on the current collector. This unique characteristic of paraffin can enable a powder-to-electrode manufacturing strategy with pattern coating, which alters the well-known PTFE-based freestanding electrode concept. This integrated approach bridges the gap between materials and processes, paving the way for sustainable advancements in battery electrode technology. © 2024, The Authors. All rights reserved.

关键词： Binders

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Modified PFNF fault-tolerant routing algorithm for WUdN structure

Modified PFNF fault-tolerant routing algorithm for WUDN stru...

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International Conference on Intelligent Computing, Communication and devices, ICCd 2017

作者： Xiaochao, Yin Guodong, Han Zeyu, Gu China National Digital Switching System Engineering & Technological R&D Center Zhenzhou China

ISBN: (纸本)9789811089435

We propose a modified PFNF routing algorithm based on the structure of WUdN, which is an adaptive routing algorithm. The algorithm has the characteristics of simple operation, low complexity, and fast response, and we prove that the algorithm is deadlocks free. The algorithm is simulated in a 16 × 16 network through the discrete time simulator NS-3. Compared with f-cube fault-tolerant routing algorithms, the results show that the modified PFNF algorithm can improve the throughput by 8% and reduce the average delay by 10% under saturated traffic. © Springer Nature Singapore Pte Ltd. 2019.

关键词： routing algorithms

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QOS-Aware Flow Control for Power-Efficient data center Networks with deep reinforcement Learning

QOS-Aware Flow Control for Power-Efficient Data Center Netwo...

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IEEE International Conference on Acoustics, Speech and Signal Processing

作者： Penghao Sun Zehua Guo Sen Liu Julong Lan Yuxiang Hu National Digital Switching System Engineering & Technological R&D Center Beijing Institute of Technology Central South University

ISBN: (数字)9781509066315

ISBN: (纸本)9781509066322

reducing the power consumption and maintaining the Flow Completion Time (FCT) for the Quality of Service (QoS) of applications in data center Networks (dCNs) are two major concerns for data center operators. However, existing works either fail in guaranteeing the QoS due to the neglect of the FCT constraints or achieve a less satisfying power efficiency. In this paper, we propose SmartFCT, which employs Software-defined Networking (SdN) coupled with the deep reinforcement Learning (drL) to improve the power efficiency of dCNs and guarantee the FCT. The drL agent can generate a dynamic policy to consolidate traffic flows into fewer active switches in the dCN for power efficiency, and the policy also leaves different margins in different active links and switches to avoid FCT violation of unexpected short bursts of flows. Simulation results show that with similar FCT guarantee, SmartFCT can save 8% more of the power consumption compared to the state-of-the-art solutions.

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Novel Biodegradable Ca–P/Ti–F Composite Conversion Coatings for Improving the Corrosion resistance of Medical Magnesium Materials

SSRN

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SSrN 2024年

作者： Sun, Ying-Sui Chu, Peng-Wei Cheng, An-Yu You, Jhu-Lin Chang, Tsung-Ming Jian, Shun-Yi Chi, Chun-Shang Liu, Yu-Cheng Chang, Chin-Jou School of Dental Technology College of Oral Medicine Taipei Medical University Taipei Taiwan Department of Engineering and System Science National Tsing Hua University Hsinchu300044 Taiwan Department of Chemical & Materials Engineering Chung Cheng Institute of Technology National Defense University Taoyuan335 Taiwan System Engineering and Technology Program National Chiao Tung University Hsinchu300 Taiwan Department of Material Engineering Ming Chi University of Technology New Taipei City24301 Taiwan Center for Plasma and Thin Film Technology Ming Chi University of Technology New Taipei243303 Taiwan Combination Medical Device Technology Division Medical Devices R&D Service Department Metal Industries Research & Development Centre Kaohsiung802 Taiwan

Mg and its alloys are characterized by favorable biocompatibility and nontoxicity, and these properties have stimulated considerable research interest in their application as degradable biomaterials for medical implants. However, the clinical application of these materials is restricted by their rapid degradation. Therefore, this study designed a surface modification method for Mg and Mg alloys to enable them to satisfy clinical requirements. A two-step conversion coating method was applied to pure Mg. Pure Mg samples were first coated with calcium phosphate (Ca–P), following which they were coated with titanium fluoride (Ti–F), resulting in the production of Mg samples coated with a bioactive Ca–P/Ti–F composite. The composition of the coated samples was investigated through energy-dispersive X-ray spectroscopy with transmission electron microscopy, and their morphology was characterized through scanning electron microscopy. Moreover, hydrogen evolution measurements in simulated body fluid (SBF), electrochemical impedance spectroscopy, and polarization curves were employed to evaluate the samples’ corrosion resistance. The prepared composite conversion coatings had an average thickness of approximately 350 nm, and their corroded area was less than 5% of their total area following their immersion in SBF for 72 h. Thus, the prepared Ca–P/Ti–F composite conversion coatings effectively inhibited Mg corrosion in SBF. Moreover, the attachment and differentiation of MG-63 cells on the prepared coatings were observed. © 2024, The Authors. All rights reserved.

关键词： Energy dispersive spectroscopy

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