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Nomogram for predicting the risk of anxiety and depression in patients with non-mild burns

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World Journal of Psychiatry 2024年第8期14卷 1233-1243页

作者： Jie Chen Jian-Fei Zhang xia xiao Yu-jun Tang He-jin Huang Wen-Wen xi Li-Na Liu Zheng-Zhou Shen Jian-Hua Tan Feng Yang Department of Burns and Plastic Surgery The Second Affiliated HospitalHengyang Medical SchoolUniversity of South ChinaHengyang 421001Hunan ProvinceChina Department of Beauty Surgery Nantong Shenmei Medical Beauty ClinicNantong 226001Jiangsu ProvinceChina Department of Respiratory and Critical Care Medicine The Second Affiliated HospitalHengyang Medical SchoolUniversity of South ChinaHengyang 421001Hunan ProvinceChina

BACKGROUND Post-burn anxiety and depression affect considerably the quality of life and recovery of patients;however,limited research has demonstrated risk factors associated with the development of these *** To predict the risk of developing post-burn anxiety and depression in patients with non-mild burns using a nomogram *** We enrolled 675 patients with burns who were admitted to The Second Affiliated Hospital,Hengyang Medical School,University of South China between January 2019 and January 2023 and met the inclusion *** patients were randomly divided into development(n=450)and validation(n=225)sets in a 2:1 *** and multivariate logistic regression analyses were conducted to identify the risk factors associated with post-burn anxiety and depression dia-gnoses,and a nomogram model was *** Female sex,agexiety and depression in patients with non-mild *** nomogram model demonstrated predictive accuracies of 0.937 and 0.984 for anxiety and 0.884 and 0.923 for depression in the development and validation sets,respectively,and good predictive *** and decision curve analyses confirmed the clinical utility of the *** The nomogram model predicted the risk of post-burn anxiety and depression in patients with non-mild burns,facilitating the early identification of high-risk patients for intervention and treatment.

关键词： Burn Post-burn anxiety Depression Risk prediction Nomogram model

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符号互动:品牌数字传播的社会认同建构

新闻与传播评论 2024年第4期77卷 96-107页

作者：姚曦姚俊武汉大学媒体发展研究中心、武汉大学新闻与传播学院湖北武汉430072 武汉大学新闻与传播学院

网络化个体主义是推动品牌社会认同加速离散的重要力量,由此造成品牌社会认同的危机,然而,网络个体的重新聚集也成为品牌构建新社会认同的契机。因此,探索全新的品牌数字传播对社会认同的建构理路,对于理解广告品牌研究的理论与实践具... 详细信息

网络化个体主义是推动品牌社会认同加速离散的重要力量,由此造成品牌社会认同的危机,然而,网络个体的重新聚集也成为品牌构建新社会认同的契机。因此,探索全新的品牌数字传播对社会认同的建构理路,对于理解广告品牌研究的理论与实践具有重要意义。研究基于符号互动理论,对“后浪现象”这一数字传播典型案例进行探讨,从个体、群际和社会三重互动情境着手分析,提炼出品牌数字传播构建社会认同的两个关键环节:“情感化的符号生产”与“仪式化的公众文本创作”。在个体间情感认同形成层面,符号的生产促成情感心理空间的连接和扩大,其是形成情感认同的中间纽带;在群际间层面,人们通过互动仪式链参与公众文本创作,促进群际间的意义生产,突破圈层的意义边界,助力群际间认同。

关键词：网络社会品牌传播符号互动论 “后浪现象” 社会认同

Tunable spectral continuous shift of high-order harmonic generation in atoms by a plasmon-assisted shaping pulse

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Chinese Physics B 2024年第3期33卷 433-440页

作者：王源李玉龙乔月高娜郭福明陈洲赫兰海杨玉军赵曦王俊 Institute of Atomic and Molecular Physics Jilin UniversityChangchun 130012China Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy Jilin UniversityChangchun 130012China Beijing Institute of Space Launch Technology Beijing 100076China School of Physics and Information Technology Shaanxi Normal UniversityXi'an 710062China

We delve into the phenomenon of high-order harmonic generation within a helium atom under the influence of a plasmon-assisted shaping *** findings reveal an intriguing manipulation of the frequency peak position in the harmonic emission by adjusting the absolute phase parameter within the frequency domain of the shaping *** phenomenon holds potential significance for experimental setups necessitating precisely tuned single ***,we observe a modulated shift in the created harmonic photon energy,spanning an impressive range of 1.2 *** frequency peak shift is rooted in the asymmetry exhibited by the rising and falling edges of the laser pulse,directly influencing the position of the peak frequency *** study quantifies the dependence of this tuning range and the asymmetry of the laser pulse,offering valuable insights into the underlying mechanisms driving this ***,our investigation uncovers the emergence of semi-integer order harmonics as the phase parameter is *** attribute this discovery to the intricate interference between harmonics generated by the primary and secondary return *** observation introduces an innovative approach for generating semi-integer order harmonics,thus expanding our understanding of high-order harmonic ***,our work contributes to the broader comprehension of complex phenomena in laser-matter interactions and provides a foundation for harnessing these effects in various applications,particularly those involving precise spectral control and the generation of unique harmonic patterns.

关键词： high-order harmonic semi-integer-order spectra shift inhomogeneous field

Observation of spectral lines in the exceptional GRB 221009A

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Science China(Physics,Mechanics & Astronomy) 2024年第8期67卷 187-206页

作者： Yan-Qiu Zhang Shao-Lin xiong Ji-Rong Mao Shuang-Nan Zhang Wang-Chen Xue Chao Zheng Jia-Cong Liu Zhen Zhang xi-Lu Wang Ming-Yu Ge Shu-Xu Yi Li-Ming Song Zheng-Hua An Ce Cai xin-Qiao Li Wen-xi Peng Wen-jun Tan Chen-Wei Wang xiang-Yang Wen Yue Wang Shuo xiao Fan Zhang Peng Zhang Shi-Jie Zheng Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China Yunnan Observatories Chinese Academy of SciencesKunming 650011China Center for Astronomical Mega-Science Chinese Academy of SciencesBeijing 100012China Key Laboratory for the Structure and Evolution of Celestial Objects Chinese Academy of SciencesKunming 650216China College of Physics and Hebei Key Laboratory of Photophysics Research and Application Hebei Normal UniversityShijiazhuang 050024China Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing Guizhou Normal UniversityGuiyang 550001China College of Electronic and Information Engineering Tongji UniversityShanghai 201804China

As the brightest gamma-ray burst ever observed,GRB 221009A provided a precious opportunity to explore spectral line *** this article,we performed a comprehensive spectroscopy analysis of GRB 221009A jointly with GECAM-C and Fermi/GBM data to search for emission and absorption *** the first time we investigated the line feature throughout this GRB including the most bright part where many instruments suffered problems,and identified prominent emission lines in multiple time *** central energy of the Gaussian emission line evolves from about 37 to 6 MeV,with a nearly constant ratio(about 10%)between the line width and central ***,we find that both the central energy and the energy flux of the emission line evolve with time as a power law decay with power law index of–1 and–2,*** suggest that the observed emission lines most likely origin from the blue-shifted electron positron pair annihilation 511 ke V *** find that a standard high latitude emission scenario cannot fully interpret the observation,thus we propose that the emission line comes from some dense clumps with electron positron pairs traveling together with the *** this scenario,we can use the emission line to directly,for the first time,measure the bulk Lorentz factor of the jet(Γ)and reveal its time evolution(i.e.,Γ~t^(-1))during the prompt ***,we find that the flux of the annihilation line in the co-moving frame keeps *** discoveries of the spectral line features shed new and important lights on the physics of GRB and relativistic jet.

关键词： GRB GRB 221009A emission line

Systematic study of the synthesis of heavy and superheavy nuclei in 48Ca-induced fusion-evaporation reactions

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Nuclear Science and Techniques 2024年第7期35卷 157-172页

作者： Shi-Hao Zhu Tian-Liang Zhao xiao-jun Bao Department of Physics Collaborative Innovation Center for Quantum EffectsKey Laboratory of Low Dimensional Quantum Structures and Quantum Control of Ministry of EducationHunan Normal UniversityChangsha410081China School of Nuclear Science and Technology Lanzhou UniversityLanzhou730000China School of Physics Xi’an Jiaotong UniversityXi’an710049China

We systematically studied the evaporation residue cross sections of ^(48)Ca-induced reactions on lanthanide and actinide target nuclei under the Dinuclear System(DNS)model framework to check the reliability and applicability of the *** produce new proton-rich Fl and Lv isotopes through hot fusion reactions in the superheavy element region with Z≥104,we utilized the reactions ^(48)Ca+^(236,238,239) Pu and ^(48)Ca+^(242,243,244,250) ***,owing to the detection limit of available equipment(0.1 pb),only 283Fl and 287−289Lv,which have the maximum evaporation residue cross section values of 0.149,0.130,9.522,and 0.309 pb,respectively,can be ***,to produce neutron-deficient isotopes of actinides near the proton drip line with Z=93−100,we attempted to generate the new isotopes(224−227Pu,228−232,237Cm)using the reactions ^(48)Ca+180,182,183 W and ^(48)Ca+^(184,186,187,192) *** maximum evaporation residue cross section values are 0.07,0.06,0.26,and 0.30 nb for the former set of reactions,and 1.96 pb,5.73 pb,12.16 pb,19.39 pb,54.79 pb,and 6.45 nb for the latter,*** results are expected to provide new information for the future synthesis of unknown neutron-deficient isotopes.

关键词： Dinuclear system(DNS)model Evaporation residue cross section Neutron-deficient isotopes

同步辐射X射线衍射技术在残余应力分析中的应用

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材料工程 2024年第7期52卷 120-129页

作者：罗军李楠王曦刘昌奎中国航发北京航空材料研究院北京100095 航空材料检测与评价北京市重点实验室北京100095 中国航空发动机集团材料检测与评价重点实验室北京100095

残余应力贯穿于材料及构件的设计、生产、加工、制造、服役和失效的全生命周期,是影响材料及构件加工精度、尺寸稳定性及疲劳强度的关键因素,如何准确无损表征残余应力具有重要意义。与传统实验室X射线衍射方法相比,同步辐射X射线衍射... 详细信息

残余应力贯穿于材料及构件的设计、生产、加工、制造、服役和失效的全生命周期,是影响材料及构件加工精度、尺寸稳定性及疲劳强度的关键因素,如何准确无损表征残余应力具有重要意义。与传统实验室X射线衍射方法相比,同步辐射X射线衍射技术在亮度、准直、时间分辨率、空间分辨率、穿透深度等方面具有显著优势,是一种无损原位精确表征工程材料和关键构件残余应力有效的方法之一。本文围绕同步辐射X射线衍射技术在材料残余应力中的研究进展,重点阐述增材制造过程中高温合金的残余应力分析、激光喷丸技术对钛合金残余应力的影响、焊接铝合金残余应力评价、热处理参数对结构钢残余应力的影响以及陶瓷涂层的残余应力研究。最后,分析同步辐射X射线衍射技术在工业应用方面的不足,并展望未来的研究及发展方向,包括发展原位测试环境及装置、同步辐射X射线衍射技术与其他无损检测方法相结合等。

关键词：同步辐射X射线衍射残余应力工程材料关键构件

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纳米压痕法测量航空发动机关键材料残余应力的研究进展

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材料导报 2024年第11期38卷 216-228页

作者：罗军李楠王曦刘昌奎中国航发北京航空材料研究院北京100095 航空工业失效分析中心北京100095 航空材料检测与评价北京市重点实验室北京100095 中国航空发动机集团材料检测与评价重点实验室北京100095

随着航空发动机的需求日益增加,人们对合金性能的要求也越来越高。在制造和加工过程中引入的残余拉应力会严重影响合金的力学性能,从而缩短发动机的服役寿命。因此,残余应力的测量对发动机的可靠性和安全性起着关键性作用。本文系统归... 详细信息

随着航空发动机的需求日益增加,人们对合金性能的要求也越来越高。在制造和加工过程中引入的残余拉应力会严重影响合金的力学性能,从而缩短发动机的服役寿命。因此,残余应力的测量对发动机的可靠性和安全性起着关键性作用。本文系统归纳了纳米压痕技术的测量原理,包括接触深度、接触刚度、接触面积、硬度以及弹性模量的计算,介绍了纳米压痕测量残余应力计算模型(如Suresh、Lee、Xu、Wang、Kim以及Peng等模型)的分析过程,对比了计算模型之间的优缺点,详细综述了纳米压痕理论在航空发动机关键材料(如不锈钢、铝合金、钛合金、镍基高温合金)残余应力测量中的最新研究进展,总结了残余应力计算模型存在的不足,同时展望了纳米压痕法测量残余应力的发展方向。

关键词：纳米压痕计算模型残余应力航空发动机关键材料

共混GAP基含能热塑性弹性体的氢键行为与力学性能

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火炸药学报 2024年第4期47卷 365-371页

作者：郑梦泽张宁刘双靳鹏张锡铭刘文皓罗运军北京理工大学材料学院北京100081 高能量密度材料教育部重点实验室北京100081

为了改善GAP热塑性弹性体的力学性能,采用了DSC、低场核磁测试、静态力学测试和动态力学测试的方法对两种异氰酸酯固化的弹性体共混体系的氢键行为和力学性能进行分析,建立微观结构与宏观性能的关系。结果表明,由于分子结构原因,HMDI固... 详细信息

为了改善GAP热塑性弹性体的力学性能,采用了DSC、低场核磁测试、静态力学测试和动态力学测试的方法对两种异氰酸酯固化的弹性体共混体系的氢键行为和力学性能进行分析,建立微观结构与宏观性能的关系。结果表明,由于分子结构原因,HMDI固化的GAP热塑性弹性体和IPDI固化的弹性体显示出不同的氢键行为和力学性能,通过物理共混得到了兼具抗拉强度及断裂延伸率的弹性体,50℃下抗拉强度高于1.5MPa,-40℃下延伸率不低于300%,相较于纯HMDI固化的弹性体,低温延伸率提升了约150%,IPDI固化的弹性体高温抗拉强度提升了约1.4MPa,说明通过共混可得到性能更为均衡的含能热塑性弹性体。

关键词：材料力学聚叠氮缩水甘油醚 GAP 热塑性弹性体氢键行为高分子物理共混高低温力学性能

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基于装配式木塑板材的商业展示空间模块设计研究

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林产工业 2024年第3期61卷 59-64页

作者：阮雪君席飞南京机电职业技术学院江苏南京211135 南京财经大学艺术设计学院江苏南京210023

现今商业展示空间更新周期短、材料回收率低,而重新设计又会增加不必要的成本。本文采用模块化设计方法对商业展示空间的传统规划手法进行改进,利用固定模块、活动模块和灵活模块的组合打造不同面积、不同风格的商业展示空间,并具有统... 详细信息

现今商业展示空间更新周期短、材料回收率低,而重新设计又会增加不必要的成本。本文采用模块化设计方法对商业展示空间的传统规划手法进行改进,利用固定模块、活动模块和灵活模块的组合打造不同面积、不同风格的商业展示空间,并具有统一性和唯一性。此外,在展示空间中应用装配式木塑板材,以缩短施工周期,提高材料的利用率,实现空间的快速设计和建立,进而促进商业展示空间的可持续发展。

关键词：模块化装配式木塑板材商业空间室内设计