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基于多因素的新能源商用车续驶里程与能量的仿真研究

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汽车电器 2024年第3期 1-4,7页

作者：唐瑜亮湖南三一工业职业技术学院湖南长沙410100

以一款换电式纯电动自卸式新能源商用汽车为例,首先进行电动汽车续驶里程影响因素的分析,其次建立电动汽车等速行驶续驶里程与动力电池能量的数学模型,选取滚动阻力系数计算公式。在此基础上,进行等速行驶续驶里程的仿真计算与深入分析... 详细信息

以一款换电式纯电动自卸式新能源商用汽车为例,首先进行电动汽车续驶里程影响因素的分析,其次建立电动汽车等速行驶续驶里程与动力电池能量的数学模型,选取滚动阻力系数计算公式。在此基础上,进行等速行驶续驶里程的仿真计算与深入分析。最后将MATLAB仿真的结果与实车测试的里程数据进行对比,以验证该续驶里程计算方法的准确性和符合整车设计要求的效果。

关键词：纯电动自卸汽车续驶里程等速行驶阻力系数

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数据加密技术在计算机网络通信工程中的应用

移动信息 2024年第7期46卷 242-244页

作者：汤玉良合肥格讯信息技术有限公司合肥230000

科技的发展进一步提高了信息传递速度,用户数据的安全性问题也引发了人们的普遍关注。文中以用户数据安全为切入点,详细梳理了数据加密技术的类别,并从网络安全防御的角度探讨了如何将数据加密技术应用到社会实践之中,以促进两者的高效... 详细信息

科技的发展进一步提高了信息传递速度,用户数据的安全性问题也引发了人们的普遍关注。文中以用户数据安全为切入点,详细梳理了数据加密技术的类别,并从网络安全防御的角度探讨了如何将数据加密技术应用到社会实践之中,以促进两者的高效融合,营造更加安全的网络环境。

关键词：计算机网络通信安全数据加密技术应用研究

Applications of self-consistent field theory in polymer systems

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Science China Chemistry 2006年第1期49卷 21-43页

作者： YANG yuliang QIU Feng tang Ping ZHANG Hongdong The Key Laboratory of Molecular Engineering of Polymers of Ministry of Education of China Department of Macromolecular Science Fudan University Shanghai 200433 China The Key Laboratory of Molecular Engineering of Polymers of Ministry of Education of China Department of Macromolecular Science Fudan University Shanghai 200433 China The Key Laboratory of Molecular Engineering of Polymers of Ministry of Education of China Department of Macromolecular Science Fudan University Shanghai 200433 China The Key Laboratory of Molecular Engineering of Polymers of Ministry of Education of China Department of Macromolecular Science Fudan University Shanghai 200433 China

The self-consistent field theory (SCFT) based upon coarse-grained model is especially suitable for investigating thermodynamic equilibrium morphology and the phase diagram of inhomo-geneous polymer systems subjected to phase separation. The advantage of this model is that the details of the chain such as the architecture of the chain and the sequence of blocks can be consid-ered. We present here an overview of SCFT approach and its applications in polymeric systems. In particular, we wish to focus on our group’s achievements in applications of SCFT in such fields: simulation of microphase separation morphologies of multiblock copolymers with a complex molecular architecture, interactions between brush-coated sheets in a polymer matrix, mixtures of flexible poly-mers and small molecular liquid crystals at the interface, shapes of polymer-chain-anchored fluid vesicles, self-assembled morphologies of block copolymers in dilute solution, and so on. Finally, the further developments as well as the perspective applications of SCFT are discussed.

关键词： self-consistent field theory, block copolymer, microphase separation.

Multi-Hop Transmission Method of 5G Millimeter Wave Relay Based on Network Coding

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China Communications 2022年第12期19卷 14-26页

作者： Yilin Wang Weisheng He Xuwei Fan Lianfen Huang Jie Yang yuliang tang School of Information Xiamen UniversityXiamen 361005China Department of Software Engineering Xiamen Institute of Software TechnologyXiamen 361005China

With the rapid development of the Internet technology,millimeter wave(mmWave)will be used as a supplement to 5G low frequency bands to meet the extremely high system capacity requirements of 5G in hot *** 5G mmWave communication can adapt to the needs of 5G network and carry a large amount of transmitted data,transmission stability has become one of the key technical issues of 5G network mmWave communication due to problems such as strong attenuation and poor penetration of *** order to improve the efficiency of the mmWave multi-hop transmission,we propose a 5G mmWave multi-hop transmission method based on network coding,which can adapt to the current wireless network environment,improve spectrum efficiency and increase network *** on MATLAB simulation experiments,it is verified that the proposed method can greatly improve the transmission efficiency and reduce the signal loss under the premise of ensuring the accurate signal transmission.

关键词： 5G network millimeter wave relay multihop communication network coding

Space-air-ground integrated vehicular network for connected and automated vehicles:Challenges and solutions

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Intelligent and Converged Networks 2020年第2期1卷 142-169页

作者： Zhisheng Niu Xuemin S.Shen Qinyu Zhang yuliang tang Beijing National Research Center for Information Science and Technology Department of Electronic EngineeringTsinghua UniversityBeijing 100084China Department of Electrical and Computer Engineering University of WaterlooWaterlooN2L 3G1Canada School of Electronic and Information Engineering Harbin Institute of TechnologyShenzhen 518055China Department of Information and Communication Engineering Xiamen UniversityXiamen 361005China

Unlimited and seamless coverage as well as ultra-reliable and low-latency communications are vital for connected vehicles,in particular for new use cases like autonomous driving and vehicle *** this paper,we propose a novel Space-Air-Ground integrated vehicular network(SAGiven)architecture to gracefully integrate the multi-dimensional and multi-scale context-information and network resources from satellites,High-Altitude Platform stations(HAPs),low-altitude Unmanned Aerial Vehicles(UAVs),and terrestrial cellular communication *** of the key features of the SAGiven is the reconfigurability of heterogeneous network functions as well as network *** first give a comprehensive review of the key challenges of this new architecture and then provide some up-to-date solutions on those ***,the solutions will cover the following topics:(1)space-air-ground integrated network reconfiguration under dynamic space resources constraints;(2)multi-dimensional sensing and efficient integration of multi-dimensional context information;(3)real-time,reliable,and secure communications among vehicles and between vehicles and the SAGiven platform;and(4)a holistic integration and demonstration of the ***,it is concluded that the SAGiven can play a key role in future autonomous driving and Internet-of-Vehicles applications.

关键词： space information network vehicular network space-air-ground integrated network autonomous driving context information Internet-of-Vehicles

Development of Mg-Al LDH and LDO as novel protective materials for deacidification of paper-based relics

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Chinese Chemical Letters 2024年第9期35卷 475-480页

作者： Sinong Wang Shanshan Jin Xue Yang Yanyan Huang Peng Liu Yi tang yuliang Yang Institute for Preservation and Conservation of Chinese Ancient Books Fudan University LibraryFudan UniversityShanghai 200433China Department of Chemistry Shanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsCollaborative Innovation Centre of Chemistry for Energy MaterialsFudan UniversityShanghai 200433China State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular ScienceFudan UniversityShanghai 200433China Key Laboratory of Pulp and Paper Science&Technology of Ministry of Education Qilu University of Technology(Shandong Academy of Sciences)Ji’nan 250353China

Acidification of paper-based relics is a common problem,leading to their degradation and eventual *** deacidification is highly dependent on a limited variety of alkaline materials,and the development of new materials that are safe,efficient and easy-to-prepare is highly demanded to ensure a high level of safety and effective protection of paper-based *** study proposes the introduction of layered double hydroxide(LDH)and its calcined product,mixed metal oxide(layered double oxide(LDO)),as innovative protective materials for the deacidification of paper with varying levels of *** results demonstrate that treatment with Mg-Al LDH/LDO can effectively modify the p H of acidic paper(e.g.,pH~4.0–6.4)to a neutral or weakly basic state,maintaining this desirable p H range even under long-term accelerated aging ***,LDH proves to be well-suited for the protection of slightly acidified paper(e.g.,pH>5.5),while LDO serves as an especially option for the deacidification of severely acidified paper(e.g.,pH≤5.5).During aqueous deacidification,due to the memory effect of the LDH-based materials,LDO is converted to rehydrated LDH,which creates a mild and appropriate alkaline retention in the paper,avoiding damage caused by strong alkalinity such as cellulose degradation and pigment fading during subsequent long-term natural preservation of the ***,Mg-Al LDH/LDO materials also exhibit flame-retardant and bacteriostatic *** opens up opportunities for the safe,efficient and multifunctional protection of acidified paper-based relics.

关键词： Layered double hydroxide Layered double oxide Structural memory effect Paper protection Deacidification

Photopolymerization Initiated with Bis-[O-(α-Methacryl)]-α,β-Dioximes and Tertiary Amines

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Chemical Research in Chinese Universities 1990年第1期6卷 80-84页

作者： Tong Weida, Sun Meng, Yang yuliang, tang Lijun and Yu Tongyin (Department of Material Science, Fudan University, Shanghai)

Among sensitizing systems, the combination of benzophenone(BP) and tertiary amines(TA) has been deeply studied. Since the structure of O-acyl-oximes is similar to that of BP and their triplet state energies are nearly equal, we want to know whether the behavior of the photopolymerization initiated with O-acyl-oximes—TA system is the same as that of photopolymerization initiated with

关键词： Photopolymerlzation O-acyl oximes Exiplex

Establishment of a transformation system in close relatives of wheat under the assistance of TaWOX5

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Journal of Integrative Agriculture 2024年第6期23卷 1839-1849页

作者： Yanan Chang Junxian Liu Chang Liu Huiyun Liu Huali tang yuliang Qiu Zhishan Lin Ke Wang Yueming Yan Xingguo Ye Institute of Crop Sciences Chinese Academy of Agricultural SciencesBeijing 100081China Beijing Key Laboratory of Plant Gene Resources and Biotechnology for Carbon Reduction and Environment Improvement/College of Life Science Capital Normal UniversityBeijing 100048China College of Agronomy and Biotechnology China Agricultural UniversityBeijing 100193China State Key Laboratory of Plant Cell and Chromosome Engineering/Institute of Genetics and Developmental Biology Chinese Academy of SciencesBeijing 100101China

Species closely related to wheat are important genetic resources for agricultural production,functional genomics studies and wheat *** this study,a wheat gene related to regeneration,TaWOX5,was applied to establish the Agrobacterium-mediated transformation systems of Triticum monococcum,hexaploid triticale,and rye(Secale cereale L.)using their immature *** plants were efficiently *** the transformation process,the Agrobacterium infection efficiency was assessed by histochemical staining forβ-glucuronidase(GUS).Finally,the transgenic nature of regenerated plants was verified by polymerase chain reaction(PCR)-based genotyping for the presence of the GUS and bialaphos resistance(bar)genes,histochemical staining for GUS protein,and the QuickStix strip assay for bar *** transformation efficiency of *** genotype PI428182 was 94.4%;the efficiencies of four hexaploid triticale genotypes Lin456,ZS3297,ZS1257,and ZS3224 were 52.1,41.2,19.4,and 16.0%,respectively;and the transformation efficiency of rye cultivar Lanzhou Heimai was 7.8%.Fluorescence in situ hybridization(FISH)and genomic in situ hybridization(GISH)analyses indicated that the GUS transgenes were integrated into the distal or near centromere(proximal)regions of the chromosomes in transgenic *** and hexaploid triticale *** the transgenic hexaploid triticale plants,the foreign DNA fragment was randomly integrated into the AABB and RR ***,the transgene was almost stably inherited in the next generation by Mendel’s *** findings in this study will promote the genetic improvement of the three plant species for grain or forage production and the improvement of cereal species including wheat for functional genomics studies.

关键词： Triticum monococcum hexaploid triticale rye TaWOX5 Agrobacterium transformation efficiency

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IPv6与IPv4间的SIP通信安全

微计算机信息 2007年第3期23卷 58-60页

作者：苏少辉唐余亮厦门大学电子工程系

SIP是一种在IP网络中建立、修改和终止多媒体会话的应用层控制协议,是下一代网络的一个重要信令协议。当前的因特网主要是基于IPv4的,IPv6被设计来代替IPv4,但是在相当长一段时间内,两者将共存。IPv4与IPv6终端间的互通显得尤为重要。... 详细信息

SIP是一种在IP网络中建立、修改和终止多媒体会话的应用层控制协议,是下一代网络的一个重要信令协议。当前的因特网主要是基于IPv4的,IPv6被设计来代替IPv4,但是在相当长一段时间内,两者将共存。IPv4与IPv6终端间的互通显得尤为重要。本文介绍了IPv4与IPv6终端间的SIP会话,同时对其会话的安全性做了讨论,并针对其安全性提出了一种解决方案。

关键词： SIP NAT-PT IPv4 IPv6 安全