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International Journal of Minerals,Metallurgy and Materials 2024年第8期31卷 1890-1899页

作者： Zongan Luo Xin Zhang Zhaosong Liu hongyu Zhou Mingkun Wang Guangming xie State Key Laboratory of Rolling and Automation Northeastern UniversityShenyang 110819China

This work aims to investigate the mechanical properties and interfacial characteristics of 6061 Al alloy plates fabricated by hotroll bonding(HRB)based on friction stir *** results showed that ultimate tensile strength and total elongation of the hot-rolled and aged joints increased with the packaging vacuum,and the tensile specimens fractured at the matrix after exceeding 1 ***-equilibrium grain boundaries were formed at the hot-rolled interface,and a large amount of Mg_(2)Si particles were linearly precipitated along the interfacial grain boundaries(IGBs).During subsequent heat treatment,Mg_(2)Si particles dissolved back into the matrix,and Al_(2)O_(3) film remaining at the interface eventually evolved into *** addition,the local IGBs underwent staged elimination during HRB,which facilitated the interface healing due to the fusion of grains at the *** process was achieved by the dissociation,emission,and annihilation of dislocations on the IGBs.

关键词： 6061 Al alloy hot-roll bonding vacuum mechanical properties interfacial grain boundaries

Refined acoustic holography via nonlocal metasurfaces

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Science China(Physics,Mechanics & Astronomy) 2024年第7期67卷 113-123页

作者： Shuhuan xie hongyu Ma Junmei Cao Fangshuo Mo Qian Cheng Yong Li Tong Hao Institute of Acoustics School of Physics Science and EngineeringTongji UniversityShanghai 200092China Center for Spatial Information Science and Sustainable Development Applications Tongji UniversityShanghai 200092China College of Surveying and Geo-Informatics Tongji UniversityShanghai 200092China

Holography can provide the desired wavefront phase and/or amplitude for imaging,particle manipulation,bacteria trapping,and cell patterning in optics and ***,previous work on acoustic holography is mostly based on local design optimization,either using active control of the sound source or relying on the structural design to provide the desired *** precise control over the acoustic field remains a significant ***,we realize refined single-plane symmetric binary amplitude,asymmetric intensity gradient amplitude,and bi-objective hologram through the non-local holographic imaging theory that considers the acoustic coupling of structural units in *** taking into account the self-radiation and mutual radiation between many small units on a plate of well-designed thickness,as well as the transmission through the plate's apertures,we can effectively regulate the sound field behind the *** demonstrate the effectiveness of our approach through numerical simulations and experiments,showcasing a circle,a black hole,and a bi-objective with a circle and a square ***,the acoustic black hole hologram precisely reconstructs the intensity gradient distribution at two bright *** non-local holographic imaging theory is valuable for the fine-intensity regulation of the sound field and is expected to be applied in ultrasound diagnosis and treatment,medical imaging,and other fields.

关键词： acoustic holograms non-local interactions fine intensity modulation acoustic metasurfaces

化瘀通络灸联合低频重复经颅磁刺激对脑卒中后轻、中度抑郁患者的影响

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康复学报 2024年第4期34卷 390-395,401页

作者：沈蓉袁爱红唐友斌高志群解鸿宇朱少全刘友祥安徽中医药大学第一附属医院安徽合肥230031

目的观察化瘀通络灸联合低频重复经颅磁刺激(rTMS)对于轻、中度脑卒中后抑郁(PSD)患者抑郁、神经功能缺损及睡眠效率的影响。方法选择2022年1月—2023年10月在安徽中医药大学第一附属医院治疗的轻、中度PSD患者40例,按照随机数字表法分... 详细信息

目的观察化瘀通络灸联合低频重复经颅磁刺激(rTMS)对于轻、中度脑卒中后抑郁(PSD)患者抑郁、神经功能缺损及睡眠效率的影响。方法选择2022年1月—2023年10月在安徽中医药大学第一附属医院治疗的轻、中度PSD患者40例,按照随机数字表法分为对照组和观察组,每组20例。2组均接受常规治疗和康复训练。对照组在常规治疗和康复训练基础上接受低频rTMS治疗,刺激频率1 Hz,刺激强度为80%运动阈值(MT),刺激时间10 s,间歇时间2 s,脉冲总数1000个;观察组在对照组基础上接受化瘀通络灸法治疗(百会穴压灸和神庭穴、大椎穴悬起灸)。2组均治疗1次/d,5次/周,共持续3周。分别于治疗前后采用汉密尔顿抑郁量表(HAMD)评分、患者健康问卷抑郁量表9(PHQ-9)评分和事件相关电位P300潜伏期及波幅评估患者抑郁症状与程度;采用美国国立卫生院卒中量表(NIHSS)评分评估患者神经功能缺损程度;采用匹兹堡睡眠质量指数量表(PSQI)评估患者睡眠效率;比较2组不良反应的差异。结果(1)抑郁症状与程度:与治疗前比较,2组治疗后HAMD、PHQ-9评分均明显降低,事件相关电位P300潜伏期明显缩短、波幅明显升高,差异均具有统计学意义(P0.05)。(4)不良反应:2组均未发生不良反应。结论化瘀通络灸联合低频rTMS可有效改善轻、中度PSD患者抑郁症状、神经功能缺损程度和睡眠效率,值得临床推广应用。

关键词：脑卒中抑郁化瘀通络灸低频重复经颅磁刺激神经功能睡眠效率

舌三针联合间歇性θ爆发刺激对脑卒中后吞咽障碍患者吞咽功能及表面肌电的影响

同方期刊数据库博看期刊评论

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安徽中医药大学学报 2024年第1期43卷 62-66页

作者：袁飞袁爱红童宏梅解鸿宇刘友祥沈蓉朱少全安徽中医药大学第一附属医院安徽合肥230031

目的观察舌三针联合间歇性θ爆发刺激(intermittent theta burst stimulation,iTBS)对脑卒中后吞咽障碍患者吞咽功能及表面肌电(surface electromyography,sEMG)的影响。方法将40例脑卒中后吞咽障碍患者随机分为对照组和观察组,每组20例... 详细信息

目的观察舌三针联合间歇性θ爆发刺激(intermittent theta burst stimulation,iTBS)对脑卒中后吞咽障碍患者吞咽功能及表面肌电(surface electromyography,sEMG)的影响。方法将40例脑卒中后吞咽障碍患者随机分为对照组和观察组,每组20例;两组患者均进行常规吞咽训练,对照组在此基础上行舌三针治疗,观察组在对照组治疗基础上增加iTBS治疗,疗程均为4周;观察和比较两组患者治疗前后洼田饮水试验(water swallowing test,WST)评分、标准吞咽功能评估(standardized swallowing assessment,SSA)量表评分、吞咽生活质量(swallowing quality of life,SWAL-QOL)量表评分、sEMG最大波幅值及吞咽时程。结果治疗后两组患者WST评分、SSA量表评分、吞咽时程均较治疗前显著减少(P<0.05),SWAL-QOL量表评分、sEMG最大波幅值均较治疗前显著增加(P<0.05);且观察组WST评分、SSA量表评分、吞咽时程减少程度,SWAL-QOL量表评分、sEMG最大波幅值增加程度均显著大于对照组(P<0.05)。结论舌三针联合iTBS治疗可显著改善脑卒中后吞咽障碍患者吞咽功能并提高生活质量。

关键词：脑卒中后吞咽障碍舌三针间歇性θ爆发刺激表面肌电

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袁爱红针刺治疗糖尿病视网膜病变经验

山西中医药大学学报 2024年第6期25卷 666-670,675页

作者：李飞跃解鸿宇叶敏叶盛李群威张乐乐韦艳袁爱红安徽中医药大学第一临床医学院安徽合肥230031 安徽中医药大学第一附属医院针灸康复二科安徽合肥230031

糖尿病视网膜病变(DR)以视网膜血管渗漏、新生血管形成和纤维增生为特征,随病情进展可出现视力减退、视野缺损、眼前黑影、失明等视觉功能障碍,是糖尿病最常见的血管并发症之一。袁爱红主任遵循先人理论,结合多年针灸治疗内分泌代谢性... 详细信息

糖尿病视网膜病变(DR)以视网膜血管渗漏、新生血管形成和纤维增生为特征,随病情进展可出现视力减退、视野缺损、眼前黑影、失明等视觉功能障碍,是糖尿病最常见的血管并发症之一。袁爱红主任遵循先人理论,结合多年针灸治疗内分泌代谢性疾病的临床经验,提出DR病位在眼,气阴两虚为病之根本,目络热瘀是病之关键;强调治病必求于本,以益气养阴为治则,气阴同调,从瘀论治。临床注重近部取穴、远部取穴、辨证取穴的原则,常用穴位包括睛明、视区、百会、攒竹、项五针、光明。针刺治疗DR时重用输刺,气至病所;善用头针,辅以电针;注重既病防变,瘥后防复思想;能有效改善DR患者生活质量、提高或维持视力、延缓DR病变。

关键词：糖尿病视网膜病变针刺名医经验袁爱红

工业遗产与地缘政治中的“东北接收”(1945—1948年)对国共两党组织体制的比较分析

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社会 2023年第2期43卷 54-95页

作者：解鸿宇北京大学社会学系

本文从国共两党对战后东北接收方案的比较入手,通过考察双方对区域工业遗产作出回应的具体策略及过程,揭示两党在接收中的不同组织困境以及各自的克服之策。复员和动员分别是国共两党在各自区域内的基本组织逻辑,而“条”“块”间的冲... 详细信息

本文从国共两党对战后东北接收方案的比较入手,通过考察双方对区域工业遗产作出回应的具体策略及过程,揭示两党在接收中的不同组织困境以及各自的克服之策。复员和动员分别是国共两党在各自区域内的基本组织逻辑,而“条”“块”间的冲突与“统”“分”间的张力则是二者分别面对的结构性困难。在美苏对抗的地缘政治格局下,国民党坚守城市和铁路线,以技术官僚为主体的接收要员发挥空间受限;中共虽退居农村开展土地改革,但能接续既往的根据地建设经验,并促发军政和财经干部在组织上的创新。对东北的接收方案的差异既是两党利用组织原则应对地缘政治和区域制度遗产的体现,更折射出各自建国方略上的差别。从组织体制上来说,东北的接收恰恰是中国国家建设在20世纪中叶的转折点,其所激发出的政党在组织上的创制提供了由战时走向建政的组织上的转化机制。

关键词：组织体制战后接收东北地区工业遗产地缘政治

Efficient production of ligand-free microscintillators at gram-scale for high-resolution X-ray luminescence imaging

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Chinese Chemical Letters 2024年第3期35卷 554-558页

作者： Hao Jiang Qihao Chen hongyu Wang Tingting Wu Jianwei Gong Zhenzhen Zhang Qiushui Chen Huanghao Yang Lili xie New Cornerstone Science Laboratory MOE Key Laboratory for Analytical Science of Food Safety and BiologyCollege of ChemistryFuzhou UniversityFuzhou 350108China School of Public Health Fujian Medical UniversityFuzhou 350108China Joint School of National University of Singapore and Tianjin University Fuzhou International Campus of Tianjin UniversityFuzhou 350207China Beijing National Laboratory for Molecular Sciences College of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China

The efficient production of high-quality scintillators with long radioluminescence afterglow is crucial for high-performance X-ray luminescence extension ***,scaling-up the synthesis of ligand-free scintillators to fabricate large-area X-ray imaging screens for industrial applications remains a *** this study,we report an efficient method to synthesize ligand-free,lanthanide-doped microscintillators by a one-pot reaction via the concentrated hydrothermal *** as-synthesized microscintillators exhibit prolonged persistent radioluminescence for up to 30 days after X-ray exposure and remain high stability in air or water for more than 18 months without *** Carlo simulations indicate that the size effect is responsible for the excellent afterglow performance of the *** employ these high-quality lanthanide-doped microscintillators to fabricate a large-area X-ray imaging detector using a blade-coating method,a spatial resolution of 24.9 lp/mm for X-ray *** study offers a solution for scaling-up the synthesis of low-cost microscintillators for practical applications.

关键词： Microscintillators NaLuF_(4):Tb^(3+) Afterglow X-ray detector X-ray luminescence imaging

Exploring the hygroscopic behavior of highly energetic oxidizer ammonium dinitramide(ADN)at different temperatures and humidities using an innovative hygroscopic modeling

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Defence Technology（防务技术） 2024年第10期40卷 25-34页

作者： Qiangqiang Lu Ben Liu Zhifang xie Yiwen Hu hongyu Yang Junqing Yang Lei Xiao Fengqi Zhao Hongxu Gao Wei Jiang Gazi Hao National Special Superfine Powder Engineering Research Center of China School of Chemistry and Chemical EngineeringNanjing University of Science and TechnologyNanjing 210094China Xi'an Modern Chemistry Research Institute Xi'an 710065China Shanxi Northern Xingan Chemical Industrial Co. Ltd.Taiyuan 030008China

Ammonium dinitramide(ADN)is a new type of green energetic oxidizer with excellent energy density and low pollution combustion ***,the strong hygroscopicity has a significant impact on its practical *** assist in the research on moisture-proof modification of ADN materials,an innovative hygroscopic modeling approach was proposed to evaluate the hygroscopicity of ADN at various temperatures and *** investigating the diffusion coefficient of water molecules in molecular dynamics processes,a visual insight into the hygroscopic process of ADN was ***,analyzing the non-covalent interactions between ADN and water molecules,the hygroscopicity of ADN could be evaluated qualitatively and *** energy analysis revealed that electrostatic forces play a dominant role in the process of water adsorption by ADN,whereas van der Waals forces impede *** a whole,the simulation results show that ADN presents the following hygroscopic law:At temperatures ranging from 273 K to 373 K and relative humidity(RH)from 10%to 100%,the hygroscopicity of ADN generally shows an increasing trend with the rise in temperature and humidity based on the results of three *** to the non-hygroscopic point(298 K,52%RH)of ADN obtained by experiment in the literature,a non-hygroscopic range of temperature and humidity for ADN can be depicted when the simulation results in relative hygroscopicity is less than or equal to 17%.This study can provide effective strategies for screening anti-hygroscopic modified materials of ADN.

关键词： Ammonium dinitramide Molecular dynamics Hygroscopicity Diffusion coefficient Noncovalent interactions

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五花八门的国外营销术

当代世界 2006年第7期 43-44页

作者：谢洪玉

在激烈的市场竞争中，制定营销策略至关重要。国外许多企业开动脑筋，独辟蹊径，出奇制胜，占领市场。其新颖的营销术值得借鉴。

关键词：营销术外国市场竞争营销策略企业