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Acta Mechanica Solida Sinica 2024年第3期37卷 487-497页

作者： Huifeng Xi Chunqiu Guo jinbiao Yang Xiaogang Wang Bowei Wang Shiqing Huang Zhiwei Wang School of Mechanics and Construction Engineering Jinan UniversityGuangzhou510632China College of Packing Engineering Jinan UniversityZhuhai519070China MOE Key Lab of Disaster Forecast and Control in Engineering Jinan UniversityGuangzhou510632China Foshan Soft Valley Technology Co. Ltd.Foshan528000China

For fragile products,packaging requires cushioning protection to prevent irreversible damage from accidental falls,transportation impacts,and other *** new polyurethane foam(PUF)material demonstrates superior cushioning and vibration isolation performance in practical applications,effectively minimizing damage from *** and vibration experiments were conducted on packages comprising novel PUF,expandable polyethylene,ethylene-vinyl acetate copolymer foam,and *** verify that the new PUF material outperforms in cushioning and vibration isolation,as observed from the acceleration ***,a random vibration analysis of a packaging unit involving different thicknesses of PUF materials and bracelets reveals the enhanced vibration isolation effect within a specific thickness *** vibration results of the bracelet’s outer packaging align closely with finite element simulation results,validating the effectiveness of designing and optimizing the outer *** finite element simulation,deeper understanding and prediction of the bracelet’s vibration response under various conditions is achieved,facilitating optimized packaging design for better protection and vibration damping.

关键词： Flexible polyurethane foam Packaging of fragile goods Nonlinear dynamics Vibration frequency Finite element simulation

Hybrid electromechanical properties of hetero-doped and homogeneously bonded dual-mode pressure sensor for indoor body area network node

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Science China(Information Sciences) 2024年第1期67卷 240-253页

作者： Junbin YU Shuai XIAN jinbiao MU Min WANG Yin WANG Xiaojuan HOU Le ZHANG Jian HE Jiliang MU Xiujian CHOU Science and Technology on Electronic Test and Measurement Laboratory North University of China Sichuan Aerospace Fenghuo Servo Control Technology Corporation

Pressure sensors are considerably important for continuous monitoring of human movement and the surrounding environment to construct a caregiving system for the elderly living *** challenge for pressure sensors that still remains is combining self-driven,comfort,and ***,an all-in-one conformal pressure sensor(ACPS) based on a homogeneous integrated triboelectric-piezoelectric hybrid sensor is *** ACPS has dual-mode sensing properties due to coupling triboelectrification and piezoelectric effect ensuring a stable response to various external ***-coated glass microspheres and polyacrylonitrile were uniformly filleted into the silicone rubber substrate using a hetero-doping method to create a stretchable electrode layer with flexible conformal characteristics and a piezoelectric layer with excellent piezoelectric properties,***,the triboelectric layer was fabricated using the same silicone rubber,allowing ACPS to be homogeneously bonded into an all-in-one structure with reliable *** allowed various functional layers to have outstanding interface characteristics and thus improve the electrical transmission *** developed ACPS had outstanding sensitivity(1.04 V/104Pa),high linearity(about 0.984),a wide measurement range(10–700 k Pa),and can accurately and continuously distinguish multiple ***,using a homemade signal processing circuit,ACPSs can be deployed in the human body and the room as indoor body area network *** successfully applied to the remote tracking of daily dynamic home life and the remote operation of small electrical equipment,these ACPSs can achieve real-time caregiving for the elderly living *** an application area desperately needed by society,this study envisions a caregiving system for the elderly living alone without violating personal privacy.

关键词： dual-mode pressure sensor homogeneous bonding all-in-onestructure indoor body area network node elderly caregiving microsystem

Using Aspen HYSYS to Develop a Custom Molecule-based Reformer Model

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China Petroleum Processing & Petrochemical Technology 2024年第3期26卷 102-108页

作者： Wang Xinlei Hou Zhen Zhou Xiang Zhang Lei Liu Xiaoyu Guo jinbiao SINOPEC Research Institute of Petroleum Processing Co. Ltd.Beijing 100083 Aspen Technology IncResearch&Develop DepartmentBedford MAUSA

A new continuous catalytic reforming model was configured by using a molecule-based reactor module. Themodel was based on the Sinopec Research Institute of Petroleum Processing Co., Ltd. continuous catalytic reformer fullmodel, and was reduced to a size of 157 naphtha molecules (C1−C12) that underwent 764 reactions. The new model inheritedthe advantages of the original model, and had better solving performance and flexibility owing to support by the AspenHYSYS environment. Typical commercial plant data were selected for model validation, which showed advantages in theaccuracy of detailed predictions and the range of its application. In addition, the solving time was reduced from minutes toseconds. Therefore, the simplified model proved to be feasible for industrial application.

关键词： molecular-based model continuous catalytic reformer Aspen HYSYS

Characteristics and genesis of shoal facies reservoir of the Lower Ordovician Tongzi Formation in southeastern Sichuan Basin,China

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Petroleum 2024年第3期10卷 427-439页

作者： Ruiqing Tao Hao Tang Wei Yan Yading Li Qianwen Mo Ling Li Li Zhou Tao Ma jinbiao An Guoliang Xiao Xiucheng Tan Southwest Petroleum University Division of Key Laboratory of Carbonate ReservoirsCNPCChengdu610500China Research Institute of Exploration and Development PetroChina Southwest Oil and Gas Field CompanyChengdu610051China Exploration Division PetroChina Southwest Oil and Gas Field CompanyChengdu610051China College of Geosciences China University of Petroleum(Beijing)Beijing102200China Chuanzhong Oil and Gas Geological Research Institute PetroChina Southwest Oil and Gas Field CompanySuining629000China

The Lower Ordovician Tongzi Formation containing abundant shoal sediments is the most promising stratum for the petroleum exploration in the Sichuan ***,the current studies mainly focus on the central part of the Basin,the systematic analysis of the southeastern part with well-developed shoal facies is *** paper aims to clarify the characteristics and genesis of the Tongzi Formation reservoir in Southeastern Sichuan Basin,following an analysis of sedimentary facies within the sequence stratigraphic *** research shows that the main types of reservoir rocks are oolitic,intraclastic and bioclastic *** the reservoir spaces consist mainly of intergranular(dissolved)pores,intercrystalline(dissolved)pores,intragranular dissolved pores and *** them,intergranular pores account for the highest proportion,which is followed by intragranular dissolved *** addition,most throats are necking and flaky which mainly connect intergranular and intercrystalline pores,*** diagenetic sequence shows that penecontemporaneous karst well improved the porosity of the reservoir in the early-stage although the cementation and compaction reduced parts of *** reservoir formation is associated with the tectonic-depositional settings,diageneses and terrigenous *** and submerged uplifts,forming in the early Ordovician amalgamation between Yangtze and Cathaysia blocks,accumulated shoal sediments as the material basis for the reservoir *** karst forming intragranular dissolved pores and the dolomitization aiding grainstones to resist the pressure solution are the key to increasing porosity and preserving *** absence of terrigenous contamination prevented intergranular pores from being strongly cemented,which resulted in the reservoir difference between the central and southeastern Sichuan *** study can be used as a reference for the further exploration of Ordovician

关键词： Reservoir characteristics Reservoir genesis Tongzi formation Lower ordovician Southeastern Sichuan Basin

Ultrasonic vibration enabled under-liquid forming of metallic glasses

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Science Bulletin 2024年第2期69卷 163-166页

作者： Xin Li Luyao Li Sajad Sohrabi Jia'nan Fu Zhen Li Zhe Chen Rongce Sun Yu Zhang jinbiao Huang Heting Zhang Jian Zhu Xiangyan Chen Kaikai Song Jiang Ma School of Mechanical Electrical&Information EngineeringShandong UniversityWeihai 264209China State Key Laboratory of Radio Frequency Heterogeneous Integration College of Mechatronics and Control EngineeringShenzhen UniversityShenzhen 518060China Department of Mechanics and Aerospace Engineering Southern University of Science and TechnologyShenzhen 518055China Shenzhen Research Institute of Shandong University Shenzhen 518057China

Advancements in forming technology offer significant advantages for the manufacturing industry,including enhanced efficiency,energy conservation,and improved material utilization[1].However,traditional additive manufacturing[2],thermoplastic forming[3],and laser cutting[4]encounter challenges when applied in under-liquid environments,mainly due to difficulties in temperature control and heat source provision.

关键词： glasses liquid metallic

半椭球堵流结构对窄通道流动传热特性的大涡模拟研究

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核动力工程 2024年第3期45卷 116-123页

作者：刘珺瑞熊进标上海交通大学核科学与工程学院上海200240

为研究半椭球堵流结构对窄通道内冷却剂流动传热特性的影响,针对高度为窄边宽1/2的半椭球堵流结构开展了大涡模拟,分析了堵流结构下游的时均速度场、湍动能和温度分布,研究了堵流结构附近的流动传热特征。半椭球堵流结构下游流场有显著... 详细信息

为研究半椭球堵流结构对窄通道内冷却剂流动传热特性的影响,针对高度为窄边宽1/2的半椭球堵流结构开展了大涡模拟,分析了堵流结构下游的时均速度场、湍动能和温度分布,研究了堵流结构附近的流动传热特征。半椭球堵流结构下游流场有显著的三维特性,存在绕流及边界层分离形成的回流区、剪切层、主流区和再发展区等特征区域。结合时均温度场及局部努塞尔数(Nu)的变化规律,研究了堵流结构对窄通道传热的影响机制。分析发现,半椭球底面侧壁面附近回流区及其顶部壁面再发展区内,由于热流体聚集,缺乏主流低温流体冲扫,出现局部Nu极小值和局部高温。总体上看,半椭球堵流结构对窄通道速度场和温度场的展向影响范围为5倍半椭球长半轴范围。

关键词：窄通道半椭球堵流结构流动结构传热不均匀性

贾达群《狂想曲·梨园腔魂》主题构建中的秦腔风格

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中国音乐 2024年第1期 177-187页

作者：原晋彪浙江音乐学院浙江音乐学院继续教育学院

本文以贾达群大型民族器乐协奏套曲《梨园》之末乐章《狂想曲·梨园腔魂》(以下简称《腔魂》)为研究对象,在对秦腔音乐的风格和形式特征进行研究的基础上,从材料动机塑造、音乐主题构成及展衍贯穿三个方面就《腔魂》基于秦腔风格的创作... 详细信息

本文以贾达群大型民族器乐协奏套曲《梨园》之末乐章《狂想曲·梨园腔魂》(以下简称《腔魂》)为研究对象,在对秦腔音乐的风格和形式特征进行研究的基础上,从材料动机塑造、音乐主题构成及展衍贯穿三个方面就《腔魂》基于秦腔风格的创作手法给予了细致的分析,进而揭示出该作品在音高组织过程中保持秦腔风格的呈现方式。

关键词：贾达群秦腔风格主题动机主题发展西北民歌元素

微电解-UASB-改良型两级A/O-序批沉淀工艺处理医药废水

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工业水处理 2024年第3期44卷 190-194页

作者：张金彪上海泓济环保科技股份有限公司上海200433

山东某医药化工厂综合废水包含浓污水、清污水和生活污水,且浓污水具有高COD和高NH3-N的特点,需对其进行分质预处理后再将其处理至达到污水处理厂接收水体的水质标准。首先采用微电解对浓污水进行预处理,之后将预处理后的浓污水与清污... 详细信息

山东某医药化工厂综合废水包含浓污水、清污水和生活污水,且浓污水具有高COD和高NH3-N的特点,需对其进行分质预处理后再将其处理至达到污水处理厂接收水体的水质标准。首先采用微电解对浓污水进行预处理,之后将预处理后的浓污水与清污水及除悬浮物后的生活污水混合后采用UASB-改良型两级A/O-序批沉淀组合工艺进行后续处理。工程实践表明,所采用的工艺对综合废水具有良好的处理效果,且运行稳定,耐冲击负荷高。处理后出水COD、NH3-N、TN分别降至200、3、20 mg/L以下,满足《污水综合排放标准》(GB 8978—1996)表4中的二级标准,达到污水处理厂接收水体的水质要求。

关键词：医药废水 UASB 改良型两级A/O 序批沉淀

基于多项分布的导弹命中精度贝叶斯验收方案设计

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北京航空航天大学学报 2024年第6期50卷 1991-2000页

作者：刘昊邦史宪铭屈金标荣丽卿陆军工程大学装备指挥与管理系石家庄050003

导弹命中精度验收试验是检验导弹命中性能的重要环节。针对现有GJB3400—1998中的二项分布命中精度验收试验方法难以细致描述导弹精度性能问题,考虑点目标区域对其作战效能影响,将命中精度内涵由将目标看作毁伤效果具有同一性的整体,拓... 详细信息

导弹命中精度验收试验是检验导弹命中性能的重要环节。针对现有GJB3400—1998中的二项分布命中精度验收试验方法难以细致描述导弹精度性能问题,考虑点目标区域对其作战效能影响,将命中精度内涵由将目标看作毁伤效果具有同一性的整体,拓展为导弹命中不同区域会产生不同等级毁伤效果的多区域目标,并将导弹命中精度试验采用多项分布表示。同时在验收试验中采用贝叶斯方法并结合Dempster-Shafer(D-S)证据理论可融合多源先验信息,提出一种基于多项分布的导弹命中精度贝叶斯验收方案设计方法。示例结果表明:所提方法相比GJB3400—1998中的方法能够从命中不同重要区域的多个标准检验导弹精度性能,有利于帮助使用方得到命中精度更为可靠的导弹,并充分利用命中精度先验信息,有效降低验收双方风险,为导弹命中精度鉴定和验收设计提供借鉴。

关键词：导弹命中精度验收方案多项分布贝叶斯 Dempster-Shafer证据理论