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Hengqin:gateway for Going Global

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China Today 2025年第1期74卷 50-53页

作者： ZHU JIE Zhuhai Dahengqin Company Limited

The synergy and complementary strengths between Macao and Hengqin can create an important channel for Chinese companies to *** enterprises have placed much emphasis on going global in recent years,from traditional manufacturing giants to emerging tech unicorns,and from traditional sectors to emerging industries like electric vehicles,lithium batteries,and photovoltaic *** enthusiasm to internationalize reached unprecedented levels in 2024.

关键词： companies gateway lithium

An efficient and practical threshold gateway-oriented password-authenticated key exchange protocol in the standard model

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Science China(Information Sciences) 2017年第7期60卷 130-143页

作者： Fushan WEI Jianfeng MA Ruijie ZHANG Chuangui MA Xuan WANG State Key Laboratory of Integrated Service Networks Xidian University State Key Laboratory of Mathematical Engineering and Advanced Computing The PLA Information Engineering University Engineering University of CAPF

With the assistance of an authentication server, a gateway-oriented password-authenticated key exchange(GPAKE) protocol can establish a common session key shared between a client and a gateway. Unfortunately, a GPAKE protocol becomes totally insecure if an adversary can compromise the authentication server and steal the passwords of the clients. In order to provide resilience against adversaries who can hack into the authentication server, we propose a threshold GPAKE protocol and then present its security proof in the standard model based on the hardness of the decisional Diffie-Hellman(DDH) problem. In our proposal,the password is shared among n authentication servers and is secure unless the adversary corrupts more than t + 1 servers. Our protocol requires n > 3t servers to work. Compared with existing threshold PAKE protocols,our protocol maintains both stronger security and greater efficiency.

关键词： password key exchange gateway threshold provable security

Memory Copy Optimization for Streaming gateway Transcoding:Models and Algorithms

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Chinese Journal of Electronics 2016年第4期25卷 734-739页

作者： LI Mingzhe WANG Jinlin CHEN Xiao YE Xiaozhou National Network New Media Engineering Research Center Institute of AcousticsChinese Academy of Sciences University of Chinese Academy of Sciences

Repeated memory copy during protocol translation inhibits capacity of a streaming media *** existing optimization techniques that rely on platform-specific features,this paper investigates algorithm-level platform-independent strategies.A mathematical concept of the buf-string is proposed to model the protocol transcoding *** on this model three payload extraction algorithms that can reduce memory copy are *** streaming gateway used in the Next-generation broadcasting(NGB) and the Nextgeneration on-demand(NGOD) system is taken as an example to demonstrate and evaluate our *** results from an x86 host and an embedded system prove that our strategies can reduce CPU overhead by 15%to 45%,and optimize the linear space complexity to a constant one.

关键词： Streaming media gateway Memory copy Automata Pattern matching

A Novel Onboard-gateway-based Mechanism to Improve TCP Performance in Aeronautical Satellite Networks

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Chinese Journal of Aeronautics 2007年第3期20卷 260-265页

作者： GU Ming ZHANG Jun School of Electronics and lnformation Engineering Beijing University of Aeronautics and Astronautics Beijing 100083 China

The IP-based networks on aircraft serve to support Intemet services via satellites. However, in aeronautical satellite hybrid networks, the TCP protocol performance often deteriorates due to improper decreases and slow recovery of the congestion window. This paper proposes a window size determination and notification mechanism, onboard-gateway-based mechanism （OGBM）, which is based on the onboard gateway in the networks on aircraft. A cross-layer approach is adopted by the onboard gateway to obtain the satellite link bandwidth information. And then, by the gateway, through changing the receiver＇s advertised window field in ACK packets, TCP sources are notified of the window size of each TCP source calculated on the ground of bandwidth delay product and flow numbers. The mechanism is able to avoid improper changes of TCP window and serve multiple users. Simulation results show that the mechanism with the fairness index close to l improves TCP performance in aeronautical satellite networks.

关键词： congestion control TCP gateway aeronautical satellite network

An Optimal Cluster Head and gateway Node Selection with Fault Tolerance

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Intelligent Automation & Soft Computing 2023年第2期35卷 1595-1609页

作者： P.Rahul B.Kaarthick Coimbatore Institute of Engineering and Technology CoimbatoreThondamuthur641109Tamil NaduIndia

In Mobile Ad Hoc Networks(MANET),Quality of Service(QoS)is an important factor that must be analysed for the showing the better *** Node Quality-based Clustering Algorithm using Fuzzy-Fruit Fly Optimiza-tion for Cluster Head and gateway Selection(NQCAFFFOCHGS)has the best network performance because it uses the Improved Weighted Clustering Algo-rithm(IWCA)to cluster the network and the FFO algorithm,which uses fuzzy-based network metrics to select the best CH and ***,the major drawback of the fuzzy system was to appropriately select the membership ***,the network metrics related to the path or link connectivity were not considered to effectively choose the CH and *** learning fuzzy sets,this algorithm employs a new Continuous Action-set Learning Automata(CALA)approach that correctly modiﬁes and chooses the fuzzy membership *** the fact that it extends the network’s lifespan,it does not assist in the detection of defective nodes in the routing *** of this,a new Fault Tolerance(NQCAEFFFOCHGS-FT)mechanism based on the Distributed Connectivity Restoration(DCR)mechanism is proposed,which allows the net-work to self-heal as a consequence of the algorithm’s self-healing *** of the way this method is designed,node failures may be utilised to rebuild the network topology via the use of cascaded node *** on the fractional network information and topologic overhead related with each node,the DCR is suggested as an alternative to the *** compared to the NQCAFFFOCHGS algorithm,the recreation results display that the proposed NQCAEFFFOCHGS-FT algorithm improves network performance in terms of end-to-end delay,energy consumption,Packet Loss Ratio(PLR),Normalized Routing Overhead(NRO),and Balanced Load Index(BLI).

关键词： Hybrid-manet cluster head gateway node failure fault tolerance distributed connectivity restoration

Nicotine-induced dopamine plasticity: a gateway to neurotransmitter replacement?

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Neural Regeneration Research 2020年第1期15卷 73-74页

作者： I-Chi Lai Davide Dulcis Department of Psychiatry School of Medicine University of California San Diego

Nicotine,the principal neuroactive component of tobacco,acts on the reward systems of smokers,inducing *** evidence indicates that nicotine-induced addiction alters the activity of dopaminergic neurons within reward-processing brain *** effect of developmental nicotine exposure on neuroplasticity of identified reward neurocircuitry in the adult is finally emerging and begins to be understood at the molecular,cellular,and behavioral level(Romoli et al.,2019).

关键词： plasticity smoke gateway

A Formal Model of OSI X.25/FR gateway Based on High Level Petri Net

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High Technology Letters 2001年第3期7卷 33-36页

作者：潘理 Department of Electronic Engineering Shanghai Jiaotong University Shanghai 200030 China

Specification and validation of protocol conversion in a gateway is a difficult problem in protocol engineering. During design and implementation of an OSI X.25/FR gateway, a high level Petri Net called EPr/TN is introduced as a formal specification tool to solve this problem. A formal model of the gateway is constructed by using Epr/TN. Based on this model, the process of protocol conversion and data transmission in the gateway are analyzed and validated. With object oriented techniques, this model is also utilized in the software development of the gateway.

关键词： Internetworking gateway Protocol conversion Petri net

The Key Technologies in Multi-Call Processing of the VoIP gateway

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Wuhan University Journal of Natural Sciences 2005年第3期10卷 511-514页

作者： HUANGYong-feng ZHUMing-fang BAIYi-zhi DepartmentofElectronicEngineering TsinghuaUniversityBeijing100084China

Because gateway serves many users, there are some related problems to besolved, such as the allocation and management of multiple calls, the synchronization of multiplethreads, the state transference and time-out processing. To solve these problems,key technologies inour implementation will be proposed, which are important to the stability and efficiency of thegateway. At last, the test of our gateway is shown and analyzed.

关键词： VoIP gateway multi-call

Unraveling the routes to distant metastases in colorectal cancer:Tumor deposits and lymph node metastases as the gateway

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Cancer Communications 2024年第10期44卷 1209-1213页

作者： Nelleke Pietronella Maria Brouwer Ayse Selcen Oguz Erdogan Shannon van Vliet Natasja Rutgers Nikki Knijn Gesina van Lijnschoten Jessica Juliana Tan Johannes Hendrik Willem de Wilt Niek Hugen Gina Brown Femke Simmer Iris Dionne Nagtegaal Department of Pathology Radboud University Medical CenterNijmegenGelderlandThe Netherlands Department of Pathology PathologyDNAArnhemGelderlandThe Netherlands Department of Pathology Eurofins/Laboratoria voor Pathologie en Medische Microbiologie NederlandEindhovenNoord-BrabantThe Netherlands GI Cancer Imaging Research Unit The Royal Marsden HospitalSuttonLondonUnited Kingdom Department of Surgery Radboud University Medical CenterNijmegenGelderlandThe Netherlands Department of Surgery Netherlands Cancer InstituteAmsterdamNoord-HollandThe Netherlands Department of Surgery Rijnstate HospitalArnhemGelderlandThe Netherlands Imperial College London Hammersmith Campus LondonLondonUnited Kingdom

Currently,lymph node metastases(LNM)are seen as the gateway to distant metastases in CRC and play a crucial role in the Tumor Node Metastasis(TNM)staging system[1,2].Tumor deposits(TD)have been identified as another histological feature with a strong prognostic impact but are currently only deemed clinically relevant in the absence of LNM[2,3].TD are clusters of tumor cells in the fat surrounding the bowel and are often associated with nerves,vessels and lymphatic tissue,giving the cancer cells access to multiple routes of spread[4].

关键词： metastases cancer gateway