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智能制造时代下圆竹家具的艺术传承和消费启迪

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林产工业 2024年第5期61卷 87-92页

作者：李言宋莎莎费本华王雪花北京林业大学木质材料科学与应用教育部重点实验室北京100083 北京林业大学木材科学与工程北京市重点实验室北京100083 国际竹藤中心国家林业和草原局/北京市共建竹藤科学与技术重点实验室北京100102 南京林业大学家居与工业设计学院江苏南京210037

圆竹家具是中国传统文化的重要载体,为了推广圆竹家具,营造传统文化生活环境,本文梳理了传统圆竹家具的文化传承和发展脉络,分析归纳了圆竹家具设计的原则和共性,总结出传统圆竹家具的艺术传承和文化特质。同时,探讨了圆竹家具中的文化... 详细信息

圆竹家具是中国传统文化的重要载体,为了推广圆竹家具,营造传统文化生活环境,本文梳理了传统圆竹家具的文化传承和发展脉络,分析归纳了圆竹家具设计的原则和共性,总结出传统圆竹家具的艺术传承和文化特质。同时,探讨了圆竹家具中的文化现象,对圆竹家具的文化符号进行了挖掘。在此基础上,分析了现代圆竹家具的消费倾向,得出了文化导向、环保导向、设计导向、工艺导向共同作用影响消费者决策的结论。此外,对现代圆竹家具的智造创新进行了分析,提出了生产标准化、连接方式五金化、部件模块化的圆竹家具智能制造发展路径。最后,从设计、制造、管理、服务四个角度阐述了圆竹家具智能制造的发展前景。

关键词：圆竹家具传统技艺艺术传承文化特质文化符号

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油电混合动力船舶动力系统研究

舰船科学技术 2024年第9期46卷 111-116页

作者：安伟张庆范赵建平宋莎莎吴翌丹高迪驹中海油能源发展股份有限公司安全环保分公司天津300452 上海海事大学航运技术与控制工程交通运输行业重点实验室上海201306

为了响应国家对航运业绿色可持续发展的需求,以某小型油电混合动力客船为研究对象,进行动力系统研究。根据船舶基本参数与设计指标,给出混合动力系统总成方案。在满足船舶动力性指标要求的前提下,对船舶混合动力系统进行参数匹配;并进... 详细信息

为了响应国家对航运业绿色可持续发展的需求,以某小型油电混合动力客船为研究对象,进行动力系统研究。根据船舶基本参数与设计指标,给出混合动力系统总成方案。在满足船舶动力性指标要求的前提下,对船舶混合动力系统进行参数匹配;并进一步提出了油电混合动力船舶能量控制策略,最后在混合动力实验平台上进行仿真试验验证。实验结果表明,相同工况下,混合动力船舶会比柴油发动机作为主机的船舶消耗更少的燃料,可以有效提高船舶的经济性并改善其排放性能。

关键词：油电混合系统参数匹配电力推进控制策略

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某重型专用车进气系统设计开发

机械研究与应用 2024年第2期37卷 94-96页

作者：宋莎莎沈昆鹏姚远征方松源崔铭辉陕西重型汽车有限公司陕西西安710200

文章以某重型专用车进气系统为研究对象,利用有限元分析软件对空滤器及底座支架进行静强度和模态分析。基于频域加速方法,在电磁振动台上进行振动试验,通过台架试验验证了新设计支架的可靠性;同时,在实验室进行振动前后空滤器总成性能... 详细信息

文章以某重型专用车进气系统为研究对象,利用有限元分析软件对空滤器及底座支架进行静强度和模态分析。基于频域加速方法,在电磁振动台上进行振动试验,通过台架试验验证了新设计支架的可靠性;同时,在实验室进行振动前后空滤器总成性能指标的验证,确保满足产品性能要求。综上所述,新的设计结构在满足设计要求的同时,还验证了仿真分析的准确性,缩短了整车开发周期和成本。为后续新产品研发积累经验并提供参考依据。

关键词：进气系统空气滤清器支架强度分析频域加速振动试验

强迫症患者心理社会功能的多维受损及其影响因素的初步分析

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临床精神医学杂志 2024年第2期34卷 136-141页

作者：谢民耀柳娜陈豪诚宋莎莎张宁南京医科大学附属脑科医院 210029

目的:探索强迫症(OCD)患者心理社会功能的损伤及影响因素。方法:研究纳入2021年4月至2022年6月在南京脑科医院门诊就诊的OCD患者153例,使用耶鲁布朗强迫量表(Y-BOCS)评估强迫症严重程度,强迫症症状分类量表修订版(OCI-R)、贝克焦虑量表(... 详细信息

目的:探索强迫症(OCD)患者心理社会功能的损伤及影响因素。方法:研究纳入2021年4月至2022年6月在南京脑科医院门诊就诊的OCD患者153例,使用耶鲁布朗强迫量表(Y-BOCS)评估强迫症严重程度,强迫症症状分类量表修订版(OCI-R)、贝克焦虑量表(BAI)、贝克抑郁量表(BDI-Ⅱ)、席汉残疾量表(SDS)、心理社会功能问卷评估强迫维度、情绪状态和心理社会功能;采用独立样本t检验、相关分析、多元回归分析探索心理社会功能的影响因素。结果:强迫症患者Y-BOCS、OCI-R强迫思维维度、BAI、BDI-Ⅱ、SDS与心理社会功能存在正相关(r=0.381、0.276、0.221、0.549、0.417,P均<0.05)。多元回归结果显示心理社会功能总分受强迫行为和BDI-Ⅱ影响显著(β=0.151、0.492,P均<0.05);主观幸福感受BDI-Ⅱ和SDS工作/学习维度影响显著(β=0.365、0.225,P均<0.05);心理认知受BDI-Ⅱ影响显著(β=0.510,P<0.05);社会功能受BDI-Ⅱ影响显著(β=0.478,P<0.05)。结论:不同临床特征下强迫症患者的心理社会功能损害不同,抑郁症状是心理社会功能的重要影响因素。

关键词：强迫症心理社会功能症状维度抑郁焦虑

维普期刊数据库博看期刊

The Extended Hybrid Carrier-Based Multiple Access Technology for High Mobility Scenarios

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China Communications 2024年第1期21卷 53-68页

作者： Ge song Xiaojie Fang Xuejun sha School of Electronics and Information Engineering Harbin Institute of TechnologyHarbin 150001China

The hybrid carrier(HC)system rooted in the carrier fusion concept is gradually garnering *** this paper,we study the extended hybrid carrier(EHC)multiple access scheme to ensure reliable wireless *** employing the EHC modulation,a power layered multiplexing framework is realized,which exhibits enhanced interference suppression capability owing to the more uniform energy distribution *** implementation method and advantage mechanism are explicated respectively for the uplink and downlink,and the performance analysis under varying channel conditions is *** addition,considering the connectivity demand,we explore the non-orthogonal multiple access(NOMA)method of the EHC system and develop the EHC sparse code multiple access *** proposed scheme melds the energy spread superiority of EHC with the access capacity of NOMA,facilitating superior support for massive connectivity in high mobility *** results have verified the feasibility and advantages of the proposed *** with existing HC multiple access schemes,the proposed scheme exhibits robust bit error rate performance and can better guarantee multiple access performance in complex scenarios of nextgeneration communications.

关键词： extended hybrid carrier system high mo-Received:Jun.09,2023 Revised:Nov.20,2023 Editor:Yuanwei Liu bility communications multiple access

Alleviating Skin Barrier Disruption,Skin Inflammation,and Pruritus:A Moisturizing Spray Containingβ-Glucan and Panthenol

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International Journal of Dermatology and Venereology 2023年第1期6卷 1-8页

作者： Jia Zhu Yong-Fang Wang sha-sha song Li-Li Wu Yi Chen Xin-Yu Li Mei Ju Department of Pharmacology Hospital for Skin Diseases(Institute of Dermatology)Chinese Academy of Medical Sciences and Peking Union Medical CollegeNanjingJiangsu 210042China Department of Physiotherapy Hospital for Skin Diseases(Institute of Dermatology)Chinese Academy of Medical Sciences and Peking Union Medical CollegeNanjingJiangsu 210042China

Objective:Inflammatory skin diseases were proved to be associated with dry skin-induced ***,the relationship between skin inflammation,skin barrier function,and pruritus remains *** present study aimed to explore this relationship using an acetone-ether-water(AEW)mouse model,and to investigate the anti-itch effects of the combined application ofβ-glucan and panthenol in a moisturizing spray in this mouse ***:A dry skin-induced chronic pruritus mouse model was established by repeated AEW treatment of the *** pruritic behavior,skin barrier function,and expression of molecules related to pruritus and inflammation in topical lesions were *** effects of a spray containingβ-glucan and panthenol were *** test and one-way analysis of variance were used to evaluate differences between ***:AEW treatment triggered spontaneous scratching with significantly increased numbers of scratching bouts,and disrupted the skin barrier with a significant increase in transepidermal water loss values and a significant decrease in filaggrin gene(FLG)expression(allP<0.01).AEW treatment also significantly increased the expression of NOD-like receptor family pyrin domain containing 3,apoptosis-associated speck-like protein containing a CARD,caspase-1,interleukin-1β,and tumor necrosis factor-α,as well as the pruritus-associated molecules nerve growth factor,cathepsin S,and thymic stromal lymphopoietin in the skin(allP<0.01).Application of the spray containingβ-glucan and panthenol significantly alleviated these responses,resulting in a reduced number of scratching bouts in 1 hour,reduced transepidermal water loss values,increased filaggrin mRNA expression,and reduced mRNA levels of NOD-like receptor family pyrin domain containing 3,apoptosis-associated speck-like protein containing a CARD,caspase-1,interleukin-1β,tumor necrosis factor-α,cathepsin S,thymic stromal lymphopoietin,and nerve growth factor in skin lesions(allP<0.05).

关键词： skin barrier pruritus β-glucan dry skin NOD-likereceptor family pyrin domain containing 3

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铜片止水一次性成型新工艺设计与应用

广东水利电力职业技术学院学报 2024年第3期22卷 9-13页

作者：张艳杨正策杨韡韡卢文华沙天松李尚元贵州水利水电职业技术学院贵阳551400 贵州水利实业有限公司贵阳550000

混凝土面板堆石坝以上游薄层混凝土面板作为主要防渗结构。铜止水对于控制混凝土面板接缝渗漏起着至关重要的作用,其制作与安装质量直接影响防渗效果。在贵州惠水平寨水库混凝土面板堆石坝施工中,采用自主研发加工设备将铜片加工成型,... 详细信息

混凝土面板堆石坝以上游薄层混凝土面板作为主要防渗结构。铜止水对于控制混凝土面板接缝渗漏起着至关重要的作用,其制作与安装质量直接影响防渗效果。在贵州惠水平寨水库混凝土面板堆石坝施工中,采用自主研发加工设备将铜片加工成型,自动插入橡胶棒,用密封胶固定后将加工好的铜止水快速铺装到堆石坝体的斜坡面上。改进后的止水铜片连续加工工艺显著减少了焊缝,一机可加工多种尺寸,降低了施工和运输成本,加快了施工进度,提高了施工质量,最大限度降低了高坡作业时的事故风险。

关键词：混凝土面板堆石坝止水铜片连续加工技术设计与推广应用

Laser powder bed fusion of NiTiFe shape memory alloy via premixed powder:microstructural evolution,mechanical and functional properties

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Rare Metals 2024年第5期43卷 2300-2316页

作者： Bo Yuan Jin-Guo Ge Liang Zhang Hong-Jun Chen Long-sha Wei Yu-Duo Zhou Run-Hua song Institute of Intelligent Manufacturing Technology Shenzhen PolytechnicShenzhen 518055China School of Mechanical and Electrical Engineering Guilin University of Electronic TechnologyGuilin 541004China Guangdong Advanced Polymer Composite Engineering Technology Research Center Shenzhen Academy of Aerospace TechnologyShenzhen 518057China Jihua Laboratory Testing Center Jihua LaboratoryFoshan 528000China

High-cost pre-alloyed powder is the bottleneck problem that limits the widespread application of additivemanufactured shape memory *** this work,the lowcost ternary NiTiFe shape memory alloy is fabricated by laser powder bed fusion(LPBF)technique via mechanically mixed pre-alloy NiTi powder and varying contents pure Fe powder(1,2,3 wt%).All NiTiFe alloys show a relative density of up to 99.8%by optimizing the LPBF processing *** to the heterogeneous nucleation effect of micron-sized Fe particles,both grain refinement and texture weakening are generated in the NiTiFe alloys,accompanied by the reduction of dislocation *** the room-temperature mechanical properties,the NiTi-3Fe alloy shows the highest microhardness of HV370,but the fracture strength and elongation reduce to1701 MPa and 23%*** evolution of mechanical properties is attributed to the high internal defects,low dislocation density and the incoherent ***,the NiTi-3Fe alloy shows the quasi-linear superelasticity behavior;the superelastic recoverable strain of NiTi-1Fe and NiTi-2Fe decreased with the increase in Fe *** study provided a new-fangled insight for the development of multi-component NiTi-based shape memory alloys by additive manufacturing.

关键词： Additive manufacturing shape memory alloy Metal matrix composite Microstructure Mechanical properties

Creep property and microstructural evolution of DD11 alloy under high temperature and low stress

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Rare Metals 2024年第2期43卷 810-816页

作者： Yan-Fei Liu Jiang-Bo sha Yun-song Zhao Chen-Guang Liu Yuan-Yuan Guo Jian Zhang Yu-Shi Luo School of Materials Science and Engineering Beihang UniversityBeijing100191China Science and Technology on Advanced High Temperature Structural Materials Laboratory Beijing Institute of Aeronautical MaterialsBeijing100095China

In this paper,the interrupted and ruptured creep tests were carried out in a novel second generation single crystal superalloy named DD11 at 1100℃/130 *** alloy exhibited typical creep curve including primary,steady,and tertiary three creep *** microstructural evolution at different stages of the creep were analyzed by scanning electron microscopy(SEM)and transmission electron microscopy(TEM).The results show that theγ′phases transform into rafted structure at the early stage of the steady creep and keep stable during the steady creep *** the creep goes on,the rafted structure further coarsens and the topological inversion *** addition,at the primary creep,the dislocations mainly move in theγmatrix and pile up in theγ/γ′interface since the matrix channels widen *** formation of the regular interfacial dislocation networks occurs at the early stage of the steady *** the low stress,the dominated deformation mechanism during steady creep stage is the climbing of the〈010〉type edge ***,the effect of the deformation mechanism on creep property was discussed in detail.

关键词： DD11 alloy Creep property Interrupted creep test Rafted structure Deformation mechanism