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Tungsten 2025年第1期7卷 120-136页

作者： Zao-Ming Wu lin he lin-Sen Ye Xiao-Feng Yang Jia-Jia Zhang Hong-Bo Lei Institute of Materials China Academy of Engineering Physics

High-density uniform microstructure nanocrystalline W-10wt.% Cr-5wt.% Y（W-10Cr-5Y） alloy with an average grain size of 85 nm and a relative density of 99.8% was successfully prepared.W-Cr-Y alloys with different amounts of second-phase particles were prepared by high-energy ball milling and hot isostatic pressing *** effects of composition design,ball milling parameters,and sintering parameters on the microstructure of W-Cr-Y alloys were studied.A feasible technology for controlling the synthesis of high-density nanocrystalline W-based alloys has been *** microstructure analysis of nanocrystalline W-10Cr-5Y alloy shows that there are two types of doping in the second phase:intergranular doping and intragranular *** "uniform distribution YOx-rich particles" effectively suppresses the grain growth of W and leads to the formation of nanocrystalline W-10Cr-5Y alloy.W-10Cr-5Y has an ultra-high hardness,with a Vickers hardness of 1312±12 kgf·***-temperature annealing treatment shows that W-10Cr-5Y has good thermal stability at 1000 and1100℃,as demonstrated by the comparison of Vickers hardness and grain size between annealed and unannealed alloys.

关键词： Hot isostatic pressing Microstructure Nanocrystalline tungsten Thermal stability Vickers hardness

基于二元介质简化模型的滇池湖相沉积典型冻结泥炭质土力学特性研究

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岩土力学 2025年第1期46卷 233-243页

作者：屈俊童王文彬屈林河云南大学建筑与规划学院云南昆明650504 云南省城乡规划设计研究院云南昆明650228

为研究滇池湖相沉积典型冻结泥炭质土力学特性,利用改进的TSZ-2型全自动应变控制仪对滇池湖相沉积的泥炭质土进行不同影响因素下的低温三轴剪切试验,讨论不同温度、围压、含水率下冻结泥炭质土的力学特性,并引入二元介质模型理论对冻土... 详细信息

为研究滇池湖相沉积典型冻结泥炭质土力学特性,利用改进的TSZ-2型全自动应变控制仪对滇池湖相沉积的泥炭质土进行不同影响因素下的低温三轴剪切试验,讨论不同温度、围压、含水率下冻结泥炭质土的力学特性,并引入二元介质模型理论对冻土的偏应力-应变关系进行分析。试验结果表明:随着应变的增加,偏应力-应变曲线可以划分为线弹性阶段、弹塑性阶段和基本稳定阶段,体积变形主要表现为体胀形态,冻土的变形特征均可用二元介质模型理论进行解释;在不同影响因素下,冻结泥炭质土峰值强度与围压、含水率呈正相关,与温度呈负相关;在试验条件内,围压对强度的影响先增后减,而含水率对强度表现出较高的敏感性,黏聚力随着温度的降低而增大,内摩擦角在20.56°~24.89°范围内波动。基于二元介质简化模型,构建适合冻结泥炭质土方程,并对结果进行验证,具有较好的适用性。

关键词：冻结泥炭质土低温三轴试验二元介质简化模型

国际组织场域下国家话语权影响因素与提升路径研究

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陕西师范大学学报(哲学社会科学版) 2025年第1期54卷 154-163页

作者：赫琳冉路瀚武汉大学文学院/中国语情与社会发展研究中心湖北武汉430072

国际组织是新兴发展中国家进入国际话语场域的关键平台,识别该场域内国家话语权形成的影响因素和作用机理对我国国际话语权提升有重要意义。运用定性综合集成方法提炼影响国际组织成员国话语权的因素有22项。根据话语流动机制可构建出... 详细信息

国际组织是新兴发展中国家进入国际话语场域的关键平台,识别该场域内国家话语权形成的影响因素和作用机理对我国国际话语权提升有重要意义。运用定性综合集成方法提炼影响国际组织成员国话语权的因素有22项。根据话语流动机制可构建出涵盖话语生产力、话语塑造力、话语传播力以及话语感召力的话语权影响因素作用机理模型。国家政治经济硬实力是话语权形成的关键因素,通过政策支持、机制创新、平台建设、话语调试等多维设计可以有效提升成员国在国际事务中的话语权。进一步夯实软实力基础,可以提高话语生产力;推进全球治理,可增强话语塑造力;创新方式策略,可以提升话语传播力;打造话语共同体,能加强话语感召力。

关键词：国际组织话语场域话语权话语生产力话语传播力话语塑造力

化疗期肿瘤患者全链式随访系统的开发及可行性研究

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中华护理杂志 2025年第2期60卷 177-184页

作者：谭琳钟晓莉吴际军蒋福荣刘瑶何琳四川省德阳市人民医院泌尿外科 618000 四川省德阳市人民医院护理部 618000 四川省德阳市人民医院心血管内科 618000 四川省德阳市人民医院呼吸与危重症医学科 618000 四川省德阳市人民医院神经外科 618000 四川省德阳市人民医院医院办公室 618000

目的构建化疗期肿瘤患者全链式随访系统,并评价其应用效果。方法基于患者实际需求,构建化疗期肿瘤患者全链式随访系统,包括健康档案、随访计划、风险识别与异常提醒、医护患在线咨询与交互、数据可视化分析及统计智能化管理5个模块。采... 详细信息

目的构建化疗期肿瘤患者全链式随访系统,并评价其应用效果。方法基于患者实际需求,构建化疗期肿瘤患者全链式随访系统,包括健康档案、随访计划、风险识别与异常提醒、医护患在线咨询与交互、数据可视化分析及统计智能化管理5个模块。采用便利抽样法,选取2023年2月—6月在四川省德阳市某三级甲等医院就诊的96例化疗期肿瘤患者作为试验组,应用全链式随访系统进行随访;将2022年2月—6月就诊的93例化疗期肿瘤患者作为对照组,实施常规随访护理。系统应用前后对两组自我管理能力、生活质量及随访服务满意度指标进行比较。结果试验组94例、对照组92例完成研究。系统应用后,试验组癌症患者自我管理测评量表得分为(169.44±11.96)分,高于对照组的(150.76±13.44)分;癌症患者生命质量测定量表得分为(65.50±7.90)分,高于对照组的(59.81±7.27)分;随访服务满意度调查问卷得分为(52.00±3.30)分,高于对照组的(48.89±3.54)分,两组比较,差异均具有统计学意义(P<0.001)。结论全链式随访系统的应用满足了化疗期肿瘤患者多样化、多层次的随访需求,实现了精准化、专业化、智能化的护理随访服务,有效提升了患者的症状自我管理能力和生活质量,提高了对护理服务的满意度。

关键词：化疗期人工智能全链式随访系统延续性护理肿瘤护理

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织物增强橡胶基复合材料本构模型及其应用

纺织学报 2025年第1期46卷 95-102页

作者：孙戬王彤陈云辉林何刘晖成小乐西安工程大学机电工程学院陕西西安710048 西安市现代智能纺织装备重点实验室陕西西安710048

为更准确地表征织物增强橡胶基复合材料在受力变形过程中的力学性能,针对二维编织物结构,基于连续介质力学将织物增强橡胶基复合材料应变能解耦为橡胶基体应变能、纤维拉伸应变能以及纤维之间相互作用引起的剪切应变能,结合橡胶、织物... 详细信息

为更准确地表征织物增强橡胶基复合材料在受力变形过程中的力学性能,针对二维编织物结构,基于连续介质力学将织物增强橡胶基复合材料应变能解耦为橡胶基体应变能、纤维拉伸应变能以及纤维之间相互作用引起的剪切应变能,结合橡胶、织物增强复合材料的单轴拉伸及镜框剪切实验数据拟合得到本构模型参数。通过对织物增强密封带压缩仿真结果与实验数据进行比较,验证了所建立的舱门密封有限元模型的有效性,随后将织物增强橡胶基复合材料超弹性本构模型应用于飞机舱门压缩过程的模拟分析。结果表明:超弹性本构模型能够用于表征织物增强复合材料的各向异性非线性材料行为;经向/纬向纤维与密封带轴向呈0°角铺设方式的密封性能优于45°角铺设,舱门的密封性能与门框的加载量成正比关系。

关键词：机织物橡胶织物增强复合材料橡胶密封件本构模型舱门密封带密封性有限元法

An algorithm-hybrid observer combining proportional-integral with Kalman filter for state-of-charge estimation of lithium-ion battery

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Science China Technological Sciences 2025年第3期68卷 302-313页

作者： Guangwei YIN Hua WANG lin he Xiaofei LIU Guoqiang WANG Jichao LIU School of Automotive and Transportation Engineering Hefei University of Technology Laboratory of Automotive Intelligence and Electrification Hefei University of Technology College of Foreign Languages Shandong University of Science and Technology XCMG Construction Machinery Research Institute

Estimating the state-of-charge(SOC) of lithium-ion batteries faces three main challenges at present: ensuring accuracy, achieving smooth output, and maintaining low computational complexity. To tackle these issues, this study introduces a hybrid algorithm observer. This approach combines the proportional-integral(PI) principle with the Kalman filter, utilizing a state-of-charge dynamics model and a current dynamics model. The SOC dynamics model, described by a differential equation,is developed to improve estimation accuracy. Meanwhile, the current dynamics model supports the design of a PI observer,which offers a low-complexity solution for SOC estimation. To address the issue of white noise in measurement signals, a onedimensional Kalman filter is applied. This filter smooths the output signal and enhances accuracy by addressing the limitations of the PI observer. In addition, the system incorporates parameter observation to estimate key battery parameters. The hybrid observer was tested in a real vehicle to validate its effectiveness. Experimental results and statistical analysis demonstrate that this algorithm is a strong candidate for accurately estimating SOC in lithium-ion batteries.

关键词： battery charge characteristics current-integral method battery parameters observation current dynamics model state-of-charge dynamics model

基于UCTransNet的建筑损害评估模型

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计算机工程与设计 2025年第1期46卷 44-51页

作者：谢国波张文亮何林林志毅广东工业大学计算机学院广东广州510006

为提高建筑损害的评估精度,提出一种基于UCTransNet的双阶段灾后建筑损害评估模型(MGDLNet)。阶段一使用UCTransNet完成建筑分割。阶段二使用改进后的DM-UCTransNet进行建筑损害评估,通过差异特征提取模块充分融合多尺度的建筑损害特征... 详细信息

为提高建筑损害的评估精度,提出一种基于UCTransNet的双阶段灾后建筑损害评估模型(MGDLNet)。阶段一使用UCTransNet完成建筑分割。阶段二使用改进后的DM-UCTransNet进行建筑损害评估,通过差异特征提取模块充分融合多尺度的建筑损害特征,嵌入空间金字塔更好捕捉小目标建筑及边缘特征,引入深度监督机制和改进损失函数加强浅层特征学习并平衡样本。实验结果表明,MGDLNet在目标数据集有较大优势,其加权F1得分相较于SegNet、UNet、DeeplabV3+、TransUNet和UCTransNet分别提高了8.6%、1.9%、5.0%、2.7%和1.4%。

关键词：建筑损害评估 UCTransNet 双阶段差异特征空间金字塔深度监督损失函数

Simplified Calculation Methods for All-Vertical-Piled Wharf in Offshore Deep Water

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China Ocean Engineering 2017年第2期31卷 182-191页

作者： WANG Yuan-zhan he lin-lin State Key Laboratory for Simulation & Safety of Hydraulic Engineering Tianjin Key Laboratory of Harbor & Ocean EngineeringTianjin University College of River and Ocean Engineering Key Laboratory of Regulation Technology for Inland Waterway in Transportation IndustryKey Laboratory of Hydraulic and Waterway Engineering of Ministry of EducationChongqing Jiaotong University

All-vertical-piled wharf is a kind of high-piled wharf, but it is extremely different from the traditional ones in some aspects, such as the structural property, bearing characteristics, failure mechanism, and static or dynamic calculation methods. In this paper, the finite element method （FEM） and theoretical analysis method are combined to analyze the structural property, bearing behavior and failure mode of the all-vertical-piled wharf in offshore deep water, and to establish simplified calculation methods determining the horizontal static ultimate bearing capacity and the dynamic response for the all-vertical-piled wharf. Firstly, the bearing capability and failure mechanism for all-vertical-piled wharf are studied by use of FEM, and the failure criterion is put forward for all-vertical-piled wharf based on the ＇plastic hinge＇. According to the failure criterion and P-Y curve method, the simplified calculation method of the horizontal static ultimate bearing capacity for all-vertical-piled wharf is proposed, and it is verified that the simplified method is reasonable by comparison with the FEM. Secondly, the displacement dynamic magnification factor for the all-vertical-piled wharf under wave cyclic loads and ship impact loads is calculated by the FEM and the theory formula based on the single degree of freedom （SDOF） system. The results obtained by the two methods are in good agreement with each other, and the simplified calculation method of the displacement dynamic magnification factor for all-vertical-piled wharf under dynamic loads is proposed. Then the simplified calculation method determining the dynamic response for the all-vertical-piled wharf is proposed in combination with P-Y curve method. That is, the dynamic response of the structure can be obtained through the static calculation results of P-Y curve method multiplied by the displacement dynamic magnification factor. The feasibility of the simplified dynamic response method is verified by compariso

关键词： all-vertical-piled wharf failure criterion plastic hinge dynamic amplification coefficient simplified calculation methods

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达格列净致溶血性贫血伴黄疸1例

医药导报 2025年第3期44卷 484-485页

作者：王兰何琳边原王双梅成都市金牛区人民医院西药剂科成都610036 四川省医学科学院·四川省人民医院电子科技大学附属医院药学部成都610072

1例69岁男性患者,因2型糖尿病给予达格列净片10 mg口服,qd,约7 d后出现溶血性贫血伴黄疸。该文通过回顾性分析该药物不良反应发生、诊疗及随访过程,对达格列净与药物不良反应的发生进行了关联性评价,结合相关文献分析了药物不良反应的... 详细信息

1例69岁男性患者,因2型糖尿病给予达格列净片10 mg口服,qd,约7 d后出现溶血性贫血伴黄疸。该文通过回顾性分析该药物不良反应发生、诊疗及随访过程,对达格列净与药物不良反应的发生进行了关联性评价,结合相关文献分析了药物不良反应的可能机制。该例不良反应罕见,建议临床使用达格列净时加强对血液系统不良反应的监护。

关键词：达格列净溶血性贫血黄疸药品不良反应

A Broadband Geoacoustic Inversion Scheme

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Chinese Physics Letters 2004年第6期21卷 1100-1103页

作者： LIZheng-lin ZHANGRen-he NationalLaboratoryofAcoustics InstituteofAcousticsChineseAcademyofSciencesBeijing100080

A geoacoustic inversion scheme, which combines several inversion methods together to invert for the bottom parameters, has been proposed based on the fact that the bottom acoustic parameters have different sensitivities to the different physical parameters of acoustic field. Firstly, the characteristic impedance of the bottom is inverted by measuring the vertical bottom reflective coefficients. Secondly, the derived bottom characteristic impedance is used as a constrained condition in another inversion procedure, which is very sensitive to the bottom sound speed but less sensitive to the attenuation, to inverse the bottom sound speed and bottom density. Lastly, the bottom attenuation can be estimated from methods such as transmission loss data, the vertical correlation of propagation data, and the normal mode attenuation. To obtain the characteristic impedance of the bottom accurately, vacuum glass spheres (VGS) are used as broadband sound sources, and a special mechanism is designed to trigger the VGS imploded at the preset depth. The inversion scheme has been successfully used for a set of sea experimental data. It shows that the inverted bottom parameters could distinguish the atlas marked bottom type quite well. The excellent comparison of the numerical results with the experimental data shows the validity of the inverted parameters.

关键词： Sound velocity mode attenuation Characteristic impedance Propagation losses Geoacoustic inversion broadband