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A Summary of the Large-Scale Access Convergence Network Structure

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China Communications 2016年第S1期13卷 1-5页

作者： LAN Julong ZHANG Xiaohui SHEN Juan HU Yuxiang wang Xiang MAO Zhenshan wang lingqiang LIANG Dong National Digital Switching System Engineering & Technological Research Center Zhongxing Telecommunication Equipment Corporation Henan Cable TV Network Group Co. Ltd

Under the requirement of everything over IP, network service shows the following characteristics:(1) network service increases its richness;(2) broadband streaming media becomes the mainstream. To achieve unified multi-service bearing in the IP network, the largescale access convergence network architecture is proposed. This flat access convergence structure with ultra-small hops, which shortens the service transmission path, reduces the complexity of the edge of the network, and achieves IP strong waist model with the integration of computation, storage and transmission. The key technologies are also introduced in this paper, including endto-end performance guarantee for real time interactive services, fog storing mechanism, and built-in safety transmission with integration of aggregation and control.

关键词： network architecture large-scale access convergence flat structure ultra-small hops

SOPA:Source Routing Based Packet-Level Multi-Path Routing in Data Center Networks

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ZTE Communications 2018年第2期16卷 42-54页

作者： LI Dan LIN Du JIANG Changlin wang lingqiang Department of Computer Science and Technology Tsinghua UniversityBeijing 100084China Pre⁃Research&Standard Department Wireline R&D InstituteZTE CorporationBeijing 100084China

Many ＂rich - connected＂ topologies with multiple parallel paths between smwers have been proposed for data center networks recently to provide high bisection bandwidth, but it re mains challenging to fully utilize the high network capacity by appropriate multi- path routing algorithms. As flow-level path splitting may lead to trafl＇ic imbalance between paths due to flow- size difference, packet-level path splitting attracts more attention lately, which spreads packets from flows into multiple available paths and significantly improves link utilizations. However, it may cause packet reordering, confusing the TCP congestion control algorithm and lowering the throughput of flows. In this paper, we design a novel packetlevel multi-path routing scheme called SOPA, which leverag- es OpenFlow to perform packet-level path splitting in a round- robin fashion, and hence significantly mitigates the packet reordering problem and improves the network throughput. Moreover, SOPA leverages the topological feature of data center networks to encode a very small number of switches along the path into the packet header, resulting in very light overhead. Compared with random packet spraying （RPS）, Hedera and equal-cost multi-path routing （ECMP）, our simulations demonstrate that SOPA achieves 29.87%, 50.41% and 77.74% higher network throughput respectively under permutation workload, and reduces average data transfer completion time by 53.65%, 343.31% and 348.25% respectively under production workload.

关键词： data center networks multi-path routing path splitting

GL3.3, a Novel QTL Encoding a GSK3/SHAGGY- like Kinase, Epistatically Interacts with GS3 to Produce Extra-long Grains in Rice

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Molecular Plant 2018年第5期11卷 754-756页

作者： Duo Xia Nao Zhou Rongjia Liu Wenhan Dan Pingbo Li Bian Wu Junxiao Chen lingqiang wang Guanjun Gao Qinglu Zhang Yuqing He Nationai Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research (Wuhan) Huazhong Agricultural University Wuhan 430070 China

Dear Editor, Grain size is a major determinant of grain yield and quality in rice （Oryza sativa）, and was therefore an important selective target during domestication and breeding （Fitzgerald et al., 2009）（Takano-Kai et al., 2009）. In the past few decades, a dozen grain size-related QTLs/genes have been cloned （Huang et al., 2013; Zuo and Li, 2014）. Pyramiding grain size QTLs to breed high-yielding and high-quality rice varieties has proved to be a great success. For example, by pyramiding the nonfunctional alleles gs3 and gw8 in line HJX74.

关键词：

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薪酬激励、宕账制度与上海钱庄业投机行为

中国经济史研究 2021年第4期 169-180页

作者：王玲强复旦大学经济学院上海200433

钱庄与票号同为旧式金融机构的代表,然而钱庄的投机性却比票号严重得多。本文从上海钱庄业所有权与经营权相分离的特点出发,运用委托代理理论从薪酬激励的角度来分析钱庄经理与职员的投机行为,特别是通过对钱庄与票号薪酬制度的对比,辅... 详细信息

钱庄与票号同为旧式金融机构的代表,然而钱庄的投机性却比票号严重得多。本文从上海钱庄业所有权与经营权相分离的特点出发,运用委托代理理论从薪酬激励的角度来分析钱庄经理与职员的投机行为,特别是通过对钱庄与票号薪酬制度的对比,辅以对顺康钱庄薪酬制度变迁的个案研究,揭示上海钱庄业普遍采用固定薪俸与分红相结合的薪酬激励方式,因固定薪俸过低、分红间隔过久,反而诱发了钱庄经理与职员的投机心理。民国初年,钱业薪酬结构的变动、宕账制度的废除则有效抑制了钱庄业的投机行为。

关键词：钱庄薪酬激励投机

实验能够为经济学提供适当的经验基础吗?——一个基于新实验主义的解读

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社会科学战线 2022年第3期321卷 93-100页

作者：马涛王玲强复旦大学经济学院上海200433

由于演绎方法的运用,经济学长期被视为一门先验的科学。尽管经济学家试图以经验研究实现对经济理论的检验,但由于证伪主义这一检验方式固有的弊病,经验研究几乎是也只能是理论研究的附属品,始终不能为经济理论提供适当的经验基础。作为... 详细信息

由于演绎方法的运用,经济学长期被视为一门先验的科学。尽管经济学家试图以经验研究实现对经济理论的检验,但由于证伪主义这一检验方式固有的弊病,经验研究几乎是也只能是理论研究的附属品,始终不能为经济理论提供适当的经验基础。作为一种特殊的经验研究工具,实验方法的引入带来了经济学方法论的变革,有力破解了经验研究在经济学中的困局。实验活动表明了实验并非单纯为理论提供经验证据,同时也是一种有意识的干预活动,不仅以可控、可重复的特性保证了实验结果的可靠性,还以实验知识建立起理论与实验沟通、对话的桥梁,构筑起经济学累积进步图式。相信实验经济学带来的检验经济理论、探索经验规则的能力在不远的将来终究会引起和促成一场经济学革命。

关键词：实验经济学方法论理论检验经验研究

High-quality genome assemblies for two Australimusa bananas(Musa spp.)and insights into regulatory mechanisms of superior fiber properties

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Plant Communications 2024年第1期5卷 245-261页

作者： Run Zhou Shuo wang Ni Zhan Weidi He Guiming Deng Tongxin Dou Xi-Tong Zhu Wen-Zhao Xie Yu-Yu Zheng Chunhua Hu Fangcheng Bi Huijun Gao Tao Dong Siwen Liu Chunyu Li Qiaosong Yang lingqiang wang Jia-Ming Song Jiangbo Dang Qigao Guo Ganjun Yi Ling-Ling Chen Ou Sheng Institute of Fruit Tree Research Guangdong Academy of Agricultural SciencesKey Laboratory of South Subtropical Fruit Biology and Genetic Resource UtilizationMinistry of Agriculture and Rural AffairsGuangdong Provincial Key Laboratory of Tropical and Subtropical Fruit Tree ResearchGuangzhou 510640China College of Informatics Huazhong Agricultural UniversityWuhan 430070China State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources College of Life Science and TechnologyGuangxi UniversityNanning 530004China College of Horticulture and Landscape Architecture Southwest UniversityChongqing 400715China

Bananas(Musa spp.)are monocotyledonous plants with high genetic diversity in the Musaceae family that are cultivated mainly in tropical and subtropical *** fruits are a popular food,and the plants themselves have diverse *** genetic groups(genomes)are thought to have contributed to current banana cultivars:Musa acuminata(A genome),Musa balbisiana(B genome),Musa schizocarpa(S genome),and species of the Australimusa section(T genome).However,the T genome has not been effectively ***,we present the high-quality TT genomes of two representative accessions,Abaca(Musa textilis),with high-quality naturalfiber,and Utafun(Musa troglodytarum,Fe’i group),with abundant *** the Abaca and Utafun assemblies comprise 10 pseudochromosomes,and their total genome sizes are 613 Mb and 619 Mb,*** genome analysis revealed that the larger size of the T genome is likely attributable to rapid expansion and slow removal of *** with those of Musa AA or BB accessions or sisal(Agava sisalana),Abacafibers exhibit superior mechanical properties,mainly because of their thicker cell walls with a higher content of cellulose,lignin,and *** of MusaCesA cellulose synthesis genes peaks earlier in Abaca than in AA or BB accessions during plant development,potentially leading to earlier cellulose accumulation during secondary cell wall *** Abaca-specific expressed gene MusaMYB26,which is directly regulated by MusaMYB61,may be an important regulator that promotes precocious expression of secondary cell wall ***,MusaWRKY2 and MusaNAC68,which appear to be involved in regulating expression of MusaLAC and MusaCAD,may at least partially explain the high accumulation of lignin in *** work contributes to a better understanding of banana domestica-tion and the diverse genetic resources in the Musaceae family,thus providing resources for Musa genetic improvement.

关键词： Australimusa bananas T genome Musaceae evolution structural variations fiber

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基于改进Unet的小麦茎秆截面参数检测

农业机械学报 2021年第7期52卷 169-176页

作者：陈燕朱成宇胡小春王令强广西大学计算机与电子信息学院南宁530004 广西多媒体通信与网络技术重点实验室南宁530004 广西财经学院信息与统计学院南宁530007 广西大学农学院南宁530004

针对小麦茎秆截面显微图像分割过程的复杂性,融合ResNet50和Unet网络构建维管束和背景区域的语义分割模型ResUnet,搭建对小麦茎秆截面、髓腔、厚壁和背景的语义分割模型Mobile-Unet,可实现对小麦茎秆截面尺寸、髓腔尺寸和维管束面积等... 详细信息

针对小麦茎秆截面显微图像分割过程的复杂性,融合ResNet50和Unet网络构建维管束和背景区域的语义分割模型ResUnet,搭建对小麦茎秆截面、髓腔、厚壁和背景的语义分割模型Mobile-Unet,可实现对小麦茎秆截面尺寸、髓腔尺寸和维管束面积等微观结构参数的检测。针对小麦样本数据集,通过深度学习中迁移学习的共享参数方式,将训练好的ResNet50网络权重应用到茎秆截面切片图像的网络模型上。结果表明,与同类方法相比,相关参数在精度上均有较大提升,全部参数的识别率超过97%,最高可达99.91%,平均每幅图像检测只需21.6 s,与已有图像处理方法(110 s)相比,处理速度提升了80.36%。模型评估的准确率、召回率、F1值和平均交并比均达到90%。本文方法可用于小麦茎秆微观结构的高通量观察和参数测定,为作物抗倒伏研究奠定了技术基础。

关键词：小麦茎秆截面参数显微结构深度学习图像处理语义分割

基于语义分割与实例分割的玉米茎秆截面参数测量方法

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农业机械学报 2023年第6期54卷 214-222页

作者：陈燕李想曹勉胡小春王令强广西大学计算机与电子信息学院南宁530004 广西多媒体通信与网络技术重点实验室南宁530004 广西财经学院大数据与人工智能学院南宁530007 广西大学农学院南宁530004

茎秆微观结构与其力学性能密切相关,影响作物的抗倒伏性能。但作物茎秆微观表型参数难以通过人工方式获取,因此急需自动化的测量方法。本研究以玉米为材料,通过光学显微镜获得玉米茎秆横截面切片图像,基于深度学习架构融合ResNet和Unet... 详细信息

茎秆微观结构与其力学性能密切相关,影响作物的抗倒伏性能。但作物茎秆微观表型参数难以通过人工方式获取,因此急需自动化的测量方法。本研究以玉米为材料,通过光学显微镜获得玉米茎秆横截面切片图像,基于深度学习架构融合ResNet和Unet构建语义分割Res-Unet网络模型,对截面表皮、周皮和髓区3个功能区域进行分割;针对维管束数量多、面积小、密度大的特点,以EfficientDet作为基础网络架构,根据维管束尺寸小的特性,减少双向特征图金字塔(BiFPN)的层数,达到提高推理速度、减少显存占用量的目的,同时添加掩膜分割分支,构造新的网络Eiff-BiFPN实现对维管束的分割。实验结果表明,功能区域分割的平均DICE达到88.17%;维管束分割的AP50和AP50:70分别达到88.78%和72.80%。根据分割结果,可以获得玉米茎秆截面尺寸、各功能区域尺寸和维管束数量、面积等微观结构参数。本文方法具有精确性、实时性和可用性,可用于玉米茎秆微观结构参数的自动化测定,为作物抗倒伏研究提供技术基础。

关键词：玉米茎秆截面参数语义分割实例分割显微结构

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浅谈物联网技术及应用

信息通信 2011年第2期24卷 110-111页

作者：王凌强甘肃工业职业技术学院甘肃天水712100

介绍了物联网的概念、发展与应用前景。以物联网的关键技术为基础,阐述物联网在人们生产生活等领域的典型应用,探究物联网的发展方向。

关键词：物联网关键技术应用