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Combination solution method based on the analogy of the generalized-αmethod for rigid-flexible coupling structural dynamics 认领 引用
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作者 Haoxiang Wang Huimin Zhang Yufeng Xing 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2026年第7期424-443,共20页
In this paper,a combination solution method based on the analogy of the generalized-α(AG-α)method is proposed to solve linear rigid-flexible coupling structural dynamic problems,which is termed the G-G(ρ1∞,ρ_(... In this paper,a combination solution method based on the analogy of the generalized-α(AG-α)method is proposed to solve linear rigid-flexible coupling structural dynamic problems,which is termed the G-G(ρ1∞,ρ2∞)combination solution method.In the G-G(ρ1∞,ρ2∞)method,the degrees of freedom of the system are divided into two groups.One group with larger stiffness is solved by using the AG-αmethod with parameters determined by the spectral radiusρ1∞corresponding to the infinite frequency.The other,with smaller stiffness,is solved by using the AG-αmethod with parameters determined byρ2∞.Taking two differential equations of second order as test equations,the amplification matrix of the G-G(ρ1∞,ρ2∞)method has two pairs of principal eigenvalues and two spurious eigenvalues.The percentage amplitude decay and period elongation are defined and investigated with the two algorithmic frequencies and two algorithmic damping ratios.In addition,the accuracy order and stability of the combination method are discussed.Numerical examples show that the G-G(ρ1∞,ρ2∞)method can filter out the high-frequency modes and simultaneously keep the low-frequency modes when solving rigid-flexible coupling structural dynamic problems,and its numerical performances are superior to the AG-αmethod. 展开更多
关键词 Combination solution method Time integration method Rigid-flexible coupling Accuracy order
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The Construction of Exact Solutions of the Two-Dimensional Gardner Equation via the∂¯-Dressing Method 认领 引用
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作者 Binlu FENG Linlin GUI Yufeng ZHANG 《Journal of Mathematical Research with Applications》 CSCD 2025年第6期758-772,共15页
The(2+1)-dimensional integrable generalization of the Gardner(2DG)equation is solved via the inverse scattering transform method in this paper.A kind of general solution of the equation is obtained by introducing long... The(2+1)-dimensional integrable generalization of the Gardner(2DG)equation is solved via the inverse scattering transform method in this paper.A kind of general solution of the equation is obtained by introducing long derivatives Vx,Vy,Vt.Two different constraints on the kernel function K are introduced under the reality of the solution u of the 2DG equation.Then,two classes of exact solutions with constant asymptotic values at infinity u|x2+y2→∞→0 are constructed by means of the∂¯-dressing method for the casesσ=1 andσ=i.The rational and multiple pole solutions of the 2DG equation are obtained with the kernel functions of zero-order and higher-order Dirac delta functions,respectively. 展开更多
关键词 2DG equation kernel function ∂¯-dressing method rational solution multiple pole solution
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Computational method for analytical solution with finite elements(CMAS-FE):Deriving approximate analytical solution for an isotropic homogeneous elastic medium with linear finite element method 认领 引用
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作者 Jiajia Yue Zifeng Yuan 《Theoretical & Applied Mechanics Letters》 EI CAS CSCD 2025年第6期540-550,共11页
This study presents a novel methodology to obtain an approximate analytical solution for an isotropic homo-geneous elastic medium with displacement and traction boundary conditions.The solution is derived through solv... This study presents a novel methodology to obtain an approximate analytical solution for an isotropic homo-geneous elastic medium with displacement and traction boundary conditions.The solution is derived through solving a specific numerical problem under the scope of the linear finite element method(LFEM),so the method is termed computational method for analytical solutions with finite elements(CMAS-FE).The primary objective of the CMAS-FE is to construct analytical expressions for displacements and reaction forces at nodes,as well as for strains and stresses at elemental quadrature points,all of which are formulated as infinite series solutions of various orders of Poisson’s ratios.Like the conventional LFEM,the CMAS-FE forms global sparse linear equations,but the Young’s modulus and Poisson’s ratio remain variables(or symbols).By employing a direct inverse method to solve these symbolic linear systems,an analytical expression of the displacement field can be constructed.The CMAS-FE is validated via patch and bending tests,which demonstrate convergence with mesh and term refine-ment.Furthermore,the CMAS-FE is applied to obtain the bending stiffness of a beam structure and to estimate an approximate stress intensity factor for a straight crack within a square-shaped plate. 展开更多
关键词 CMAS-FE Finite element method Linear elastic problem Analytical solution
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基于AHM-TOPSIS法的奥赛利定临床合理用药评价标准的建立与应用 认领 引用 被引量：1
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作者 韩俊萍 吕波 +2 位作者 苏存锦 沈珠 潘杰 《中国现代应用药学》 CAS CSCD 北大核心 2026年第6期957-963,共7页
目的基于属性层次模型(attribute hierarchy model,AHM)和逼近理想值排序(technique for order preference by similarity to an ideal solution,TOPSIS)法评价奥赛利定的临床用药合理性,为临床奥赛利定的合理使用和科学管理提供参考。... 目的基于属性层次模型(attribute hierarchy model,AHM)和逼近理想值排序(technique for order preference by similarity to an ideal solution,TOPSIS)法评价奥赛利定的临床用药合理性,为临床奥赛利定的合理使用和科学管理提供参考。方法以富马酸奥赛利定注射液说明书为基础,结合相关指南、专家共识及文献,建立奥赛利定合理用药评价标准。通过AHM法确立各评价指标的相对权重,采用TOPSIS法对2024年10月—2025年9月苏州大学附属第二医院开具的260份含奥赛利定的处方进行回顾性评价,根据相对接近程度(Ci)将评价结果分为用药合理、用药基本合理、用药不合理3个层次。结果奥赛利定合理用药评价标准中评价指标按相对权重排名,位列前3的分别为适应证(权重为0.1635)、用法用量(权重为0.1472)和给药途径(权重为0.1361)。260份处方按奥赛利定合理用药评价标准进行评价,各评价指标不合理率从高到低依次为经济性、合并用药、用法用量、疗效评价、特殊人群、药物不良反应处理和禁忌证;利用加权TOPSIS法评价,用药合理(Ci≥80%)的有55份,占21.15%;用药基本合理(60%≤Ci<80%)的有11份,占4.23%;用药不合理(Ci<60%)的有194份,占74.62%。结论通过AHM-TOPSIS法建立了奥赛利定临床应用的合理性评价标准,该法所得评价结果可量化、科学可信。该药在苏州大学附属第二医院的不合理使用现象较为普遍,临床应用时应加强管理。 展开更多
关键词 奥赛利定 属性层次模型 逼近理想值排序 评价标准 合理用药
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基于指纹图谱、化学计量学与多成分定量结合熵权-TOPSIS模型的健脾清化散瘀饮质量评价 认领 引用 被引量：1
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作者 郑文炜 周季萱 +2 位作者 沈毅 张宽 严锦贤 《中国医院药学杂志》 CAS 北大核心 2026年第6期607-614,共8页
目的:建立健脾清化散瘀饮(Jianpi Qinghua Sanyu Decoction,JQSD)高效液相色谱(HPLC)指纹图谱及11个成分含量测定方法,并结合化学计量学与熵权-逼近理想解排序法(TOPSIS)构建其综合质量评价体系。方法:采用WATERS XBridge®C_(18... 目的:建立健脾清化散瘀饮(Jianpi Qinghua Sanyu Decoction,JQSD)高效液相色谱(HPLC)指纹图谱及11个成分含量测定方法,并结合化学计量学与熵权-逼近理想解排序法(TOPSIS)构建其综合质量评价体系。方法:采用WATERS XBridge®C18色谱柱(4.6 mm×250 mm,5μm),柱温25℃,流动相为乙腈-0.3%磷酸水溶液,梯度洗脱,流速1.0 mL·min-1,检测波长280 nm,进样量5μL。建立JQSD指纹图谱并开发验证11个成分的定量分析方法,结合聚类分析(hierarchical cluster analysis,HCA)、主成分分析(principal component analysis,PCA)、正交偏最小二乘判别分析(orthogonal partial least squaresdiscrimination analysis,OPLS-DA)与熵权-TOPSIS模型,对15批样品进行质量评价。结果:指纹图谱与含量测定的方法学验证均良好,15批JQSD相似度均大于0.98,共标定出52个共有峰,经对照品比对确认11个色谱峰。HCA、PCA与OPLS-DA结果一致,15批JQSD样品主要聚为3类,以投影变量重要性(variable importance for the projection,VIP)>1为依据共筛选出11个潜在的差异标志成分,含量测定的11个成分(丹参素、甘草苷、橙皮苷、党参炔苷、紫草酸、盐酸小檗碱、丹酚酸B、丹酚酸A、甘草酸、和厚朴酚、厚朴酚)平均含量范围为0.0071~1.0381 mg·mL-1;熵权-TOPSIS模型评价表明S8批次样品质量最佳。结论:建立的指纹图谱与11个成分含量测定方法准确、可靠,结合化学计量学与熵权-TOPSIS模型可整体评价JQSD的质量,为其质量控制及标准制定提供科学依据。 展开更多
关键词 健脾清化散瘀饮 指纹图谱 化学计量学 含量测定 熵权-TOPSIS模型
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甘肃省14家中心血站实验室基于熵权-TOPSIS法的质量管理能力评价分析 认领 引用 被引量：1
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作者 冯惟萍 潘登 +12 位作者 杨静 车玉盒 杨悦 韩明 程富玲 李建华 韩彩凤 黎小刚 韩银 杨俊鹏 张飞燕 侯占红 高强 《现代检验医学杂志》 CAS 2026年第1期190-194,共5页
目的系统评价甘肃省14家血站实验室质量管理能力区域差异及核心驱动因素,为实验室标准化建设提供依据。方法基于熵权-TOPSIS法构建评价体系,包含人员管理、设备管理等6个一级指标及12个二级指标;利用2024年度质量指标数据,通过熵权法确... 目的系统评价甘肃省14家血站实验室质量管理能力区域差异及核心驱动因素,为实验室标准化建设提供依据。方法基于熵权-TOPSIS法构建评价体系,包含人员管理、设备管理等6个一级指标及12个二级指标;利用2024年度质量指标数据,通过熵权法确定指标权重,TOPSIS法计算综合得分并排序。结果权重分配中,年度自查次数(c10,28.571%)、应急预案种类(c8,18.654%)、单位质管巡查次数(c11,12.146%)为前三大核心驱动指标,累计权重59.371%。能力排名前三为实验室A(0.895)、I(0.602)和B(0.536),后三为M(0.354)、K(0.365)和H(0.367),最优与最差实验室综合得分相差2.5倍(t=6.72,P<0.05)。关键差异体现在管理机制、资源配置及执行规范维度,其中自查频次与问题整改率呈显著正相关(r=0.73,P<0.01)。结论需围绕自查频次、应急预案等核心指标,通过规范设备管理、强化人员培训等分级措施,推进血站实验室标准化建设,保障临床用血安全。 展开更多
关键词 血站实验室 质量管理能力 熵权-TOPSIS法 优化策略
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基于犹豫模糊多属性关联的TOPSIS改进方法 认领 引用 被引量：2
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作者 江文奇 陶瑞 《系统工程与电子技术》 EI CSCD 北大核心 2026年第5期1615-1621,共7页
属性关联性对犹豫模糊型多属性决策结果产生影响,如何刻画属性关联性测度并厘清其对决策结果的影响尤为重要。通过引入2-可加Choquet积分并利用2-可加模糊测度刻画属性关联性,探索其对逼近理想解排序法(technique for order preference ... 属性关联性对犹豫模糊型多属性决策结果产生影响,如何刻画属性关联性测度并厘清其对决策结果的影响尤为重要。通过引入2-可加Choquet积分并利用2-可加模糊测度刻画属性关联性,探索其对逼近理想解排序法(technique for order preference by similarity to ideal solution,TOPSIS)中正负理想点的影响规律;采用Zhenyuan积分全面刻画多个属性关联情形,设计一种改进的TOPSIS方法。结果显示,属性相互替代时方案与正负理想解距离比属性独立时距离偏小;属性相互互补时偏大;属性关联下方案与正负理想解的距离单调递增。证明了所提方法在刻画犹豫模糊属性关联性以及改进决策结果方面的有效性和准确性。 展开更多
关键词 多属性决策 犹豫模糊集 属性关联 逼近理想解排序法
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The order of accuracy related to the error from source approximation in the method of characteristics for purely absorbing materials in planar geometry 认领 引用
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作者 Ji-Pu Wang Zhen-Wen Wei +5 位作者 Can Huang William Martin Brendan Kochunas Qi-Cang Shen Si-Juan Chen Martin Pilch 《Nuclear Science and Techniques》 SCIE EI CAS CSCD 2026年第6期257-270,共14页
The method of characteristics(MoC)is a well-established tool for lattice physics calculations,offering advantages such as accurate representation of both lattice geometry and boundary conditions.The flat source(FS)app... The method of characteristics(MoC)is a well-established tool for lattice physics calculations,offering advantages such as accurate representation of both lattice geometry and boundary conditions.The flat source(FS)approximation is the most commonly used approach,whereas the linear source(LS)approximation enhances the accuracy by preserving the higherorder spatial moments of the neutron source.However,determining the order of accuracy(OoA)for spatial discretization in the MoC is challenging,particularly for the LS approximation.This complexity arises because MoC employs two spatial meshes:the fission source region(FSR)mesh and a set of characteristic rays used to integrate the transport equation over the FSR mesh.In this study,we analyzed the spatial order of accuracy of the MoC in planar geometry for both FS and LS approximations in relation to the distributed source.Our theoretical predictions are consistent with the numerical results obtained using the Method of Manufactured Solutions(MMS).The results demonstrate that the FS approximation achieves second-order accuracy,whereas the LS approximation attains fourth-order accuracy. 展开更多
关键词 Method of characteristics Order of accuracy Flat source approximation Linear source approximation Method of manufactured solutions
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Symplectic electrothermomechanical buckling solutions for two-dimensional decagonal piezoelectric quasicrystal cylindrical shells 认领 引用
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作者 Xin SU Yuhang LI +3 位作者 Jufang JIA Xinsheng XU Andi LAI Zhenhuan ZHOU 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI CSCD 2026年第7期1549-1568,共20页
Piezoelectric quasicrystals(PQCs),characterized by unique phonon-phason coupling and piezoelectric effects,exhibit significant potential for use in next-generation smart structural devices.However,their complex electr... Piezoelectric quasicrystals(PQCs),characterized by unique phonon-phason coupling and piezoelectric effects,exhibit significant potential for use in next-generation smart structural devices.However,their complex electrothermomechanical buckling behavior remains a challenging analytical problem.This paper presents a symplectic electrothermomechanical buckling model for two-dimensional(2D)decagonal PQC cylindrical shells.By using the symplectic mathematics and Donnell's thin shell theory,the governing buckling equations for axially compressed PQC cylindrical shells are reformulated into a Hamiltonian system.Consequently,the original buckling problem is transformed into a symplectic eigenproblem that can be solved directly,obviating the necessity of trial functions.By use of the symplectic eigenfunction expansion,analytical symplectic buckling equations are obtained,allowing the critical buckling loads and buckling mode shapes to be solved simultaneously.The results indicate that,in addition to the geometry,voltage,and temperature,the phonon-phason-electric coupling inherent in PQC materials significantly influences the critical buckling loads.These analytical results provide a reliable reference for validating other computational approaches. 展开更多
关键词 piezoelectric quasicrystal(PQC)cylindrical shell buckling symplectic method analytical solution
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Design and optimization of the RGB beam combiner in micro display using entropy weight-TOPSIS method 认领 引用 被引量：2
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作者 ZHENG Yu ZHAO Yan-bing +4 位作者 ZOU Xin-jie WANG Ji-rong JIANG Xiang LIU Jian-zhe DUAN Ji-an 《Journal of Central South University》 SCIE EI CAS CSCD 2025年第2期483-494,共12页
Red-green-blue(RGB)beam combiners are widely used in scenarios such as augmented reality/virtual reality(AR/VR),laser projection,biochemical detection,and other fields.Optical waveguide combiners have attracted extens... Red-green-blue(RGB)beam combiners are widely used in scenarios such as augmented reality/virtual reality(AR/VR),laser projection,biochemical detection,and other fields.Optical waveguide combiners have attracted extensive attention due to their advantages of small size,high multiplexing efficiency,convenient mass production,and low cost.An RGB beam combiner based on directional couplers is designed,with a core-cladding relative refractive index difference of 0.75%.The RGB beam combiner is optimized from the perspective of parameter optimization.Using the beam propagation method(BPM),the relationship between the performance of the RGB beam combiner and individual parameters is studied,achieving preliminary optimization of the device’s performance.The key parameters of the RGB beam combiner are optimized using the entropy weight-technique for order preference by similarity to an ideal solution TOPSIS method,establishing the optimal parameter scheme and further improving the device’s performance indicators.The results show that after optimization,the multiplexing efficiencies for red,green,and blue lights,as well as the average multiplexing efficiency,reached 99.17%,99.76%,96.63%and 98.52%,respectively.The size of the RGB beam combiner is 4.768 mm×0.062 mm. 展开更多
关键词 optical waveguide combiners red-green-blue beam combiner beam propagation method entropy weight TOPSIS method multiplexing efficiency
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集成HTA-AHP-TOPSIS方法的建筑物料运输机器人设计 认领 引用 被引量：2
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作者 张玉萍 郭玮滢 陆瀚 《机械设计》 CSCD 北大核心 2026年第3期234-240,共7页
为提升建筑工地物料运输自动化水平并推动智慧工地建设,采用分层任务分析法(hierarchical task analysis,HTA)拆解建筑物料运输流程,探寻建筑物料运输机器人行为产生的机制与设计方向,从中提炼设计需求并采用层次分析法(analytic hierar... 为提升建筑工地物料运输自动化水平并推动智慧工地建设,采用分层任务分析法(hierarchical task analysis,HTA)拆解建筑物料运输流程,探寻建筑物料运输机器人行为产生的机制与设计方向,从中提炼设计需求并采用层次分析法(analytic hierarchy process,AHP)进行综合权重排序;结合功能-行为-结构(function-behavior-structure,FBS)模型将设计需求映射为可执行的机器行为与具体结构设计单元,完成建筑物料运输机器人及关联场景的系统设计;采用逼近理想解排序法(technique for order preference by similarity to ideal solution,TOPSIS)客观筛选出最优设计方案。结果表明:设计方案有效将机器行为与任务流程对齐,改善了运输机器人的作业效率与环境适应性,为智能化机器产品的场景自适应设计提供思路借鉴与方向。 展开更多
关键词 建筑物料运输机器人 HTA-AHP-TOPSIS方法 FBS模型 智慧工地
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New multisoliton wave solutions in elastic inhomogeneous fractional-order Murnaghan's rod model with stability analysis 认领 引用
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作者 Ananya Tripathy Subhadarshan Sahoo 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2026年第2期269-285,共17页
In this paper,the new solitary wave solutions of the fractional doubly dispersive equation(FDDE)are investigated.These solutions are used in demonstrating wave transmission in elastic inhomogeneous Murnaghan’s rod.A ... In this paper,the new solitary wave solutions of the fractional doubly dispersive equation(FDDE)are investigated.These solutions are used in demonstrating wave transmission in elastic inhomogeneous Murnaghan’s rod.A very effective method,known as the unified method,is used here to obtain these solutions.In different conditions,the obtained solutions exhibit different pulse patterns including bright,periodic,combined bright-dark,two-soliton interaction,three-soliton interaction,five-soliton interaction,w-shaped,m-shaped,and u-shaped solutions.These physical characteristics are thoroughly investigated by the graphical representation under different values of the parameters which shows the reliability and productivity of the proposed method.In addition,linear stability analysis is applied to analyse the stability of the considered model.The novel aspect of this study is that the investigated model has never been studied by using the proposed method,and the resulting solutions have never been accomplished previously. 展开更多
关键词 fractional doubly dispersive equation(FDDE) the uni ed method solitary wave solutions Caputo's fractional derivative stability analysis
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Weighing and Prioritizing Noise Control Methods Using the Delphi Technique and the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) in an Iranian Tire Manufacturing Factory 认领 引用
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作者 Mohammad Reza Ghotbi-Ravandi Davoud Hassanvand +1 位作者 Sajad Zare Milad Beytollahi 《Sound & Vibration》 EI 2020年第3期201-213,共13页
Undoubtedly,noise has become a major hazardous issue in today’s industrial world,with a lot of people suffering from exposure to excessive noise in their work environments.This study was conducted to weigh and priori... Undoubtedly,noise has become a major hazardous issue in today’s industrial world,with a lot of people suffering from exposure to excessive noise in their work environments.This study was conducted to weigh and prioritize noise control methods in an Iranian tire manufacturing complex in Iran.The Delphi method and the Technique for Order Preference by Similarity and an Ideal Solution(TOPSIS)were utilized for this purpose.This cross-sectional,descriptive study was conducted in the baking hall of an Iranian tire manufacturing factory in 2016.To weigh and prioritize noise control methods,Analytic Hierarchy Process(AHP)and TOPSIS were applied.In total,4 criteria and 8 alternatives were examined.An AHP and TOPSIS questionnaire was then designed to prioritize noise control methods in the light of the objectives,criteria,and alternatives.Then,the collected data were fed into Expert Choise.V.11 and Excel and data analysis was carried out using TOPSIS.The results of data analysis indicated that the inconsistency rate in all the cases was smaller than 10%,hence the consistency of the responses was verified.According to the TOPSIS results and experts’opinions about the criteria,implementation and maintenance cost(with a weight of 0.481)and method effectiveness and efficiency(with a weight of 0.046)had the highest and lowest priority respectively.Based on the weights TOPSIS,the appropriate methods for controlling noise in tire manufacturing are designing and manufacturing silencer,requiring people in charge to quickly fix the leaks and change baking press washers on time. 展开更多
关键词 Ranking noise control methods TOPSIS delphi technique
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基于熵权TOPSIS和RSR法分析贵阳市基层医疗卫生机构服务能力的影响因素 认领 引用 被引量：1
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作者 徐孟群 汪俊华 +6 位作者 李秀玲 罗鹏 陈太好 陈思银 彭晓唯 王群 张江萍 《贵州医科大学学报》 CAS 2026年第1期135-141,共7页
目的分析基层医疗卫生机构服务能力现状及影响因素,为提升基层医疗卫生机构服务能力提供科学依据。方法采用熵权优劣解距离(TOPSIS)法结合秩和比法(RSR)对贵阳市云岩区37所基层医疗机构进行服务能力综合评价与分档,采用有序logistic回... 目的分析基层医疗卫生机构服务能力现状及影响因素,为提升基层医疗卫生机构服务能力提供科学依据。方法采用熵权优劣解距离(TOPSIS)法结合秩和比法(RSR)对贵阳市云岩区37所基层医疗机构进行服务能力综合评价与分档,采用有序logistic回归分析其影响因素。结果不同机构服务能力差异显著,相对接近度Ci值评分>0.3的机构仅占10.81%,Ci值<0.05的机构占40.54%;RSR分档显示,被评为好、中、差的机构分别占16.22%、70.27%、13.51%;logistic回归分析显示,设立中医馆(阁)、签订双向转诊协议能够正向预测基层医疗卫生机构服务能力。结论贵阳市基层医疗卫生机构服务能力整体偏弱且分布不均衡,需通过加大财政投入、强化信息化建设、推进中医馆建设与双向转诊机制等措施,逐步提升其医疗服务能力。 展开更多
关键词 基层医疗卫生机构 医疗服务能力 熵权优劣解距离法 秩和比法 基本功能建设
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基于Kano-TRIZ-TOPSIS的物流运输车创新设计方法 认领 引用 被引量：1
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作者 倪晋挺 郭顺 《黑龙江工程学院学报》 CAS 2026年第3期10-15,共6页
为解决多元化的客户需求,提出一种融合Kano模型、发明问题解决理论(TRIZ)、优劣解距离法(TOPSIS)的产品创新方案优选框架。首先,使用Kano模型对特定环境下的产品进行市场需求分析以获取关键客户需求,并映射为产品的设计特征。其次,使用T... 为解决多元化的客户需求,提出一种融合Kano模型、发明问题解决理论(TRIZ)、优劣解距离法(TOPSIS)的产品创新方案优选框架。首先,使用Kano模型对特定环境下的产品进行市场需求分析以获取关键客户需求,并映射为产品的设计特征。其次,使用TRIZ理论解决产品的功能需求不足问题。再次,根据产品设计特征的设计方法,结合TOPSIS方法输出产品的最佳创新设计方案。最后,以特定场景下物流运输车的驾驶室为例,对其消杀模块进行创新设计的实例研究,案例结果表明融合Kano模型、TRIZ理论与TOPSIS方法的创新设计流程,通过需求映射、矛盾分析及多方案决策,得到最佳创新方案的相对贴进度为0.468。最终确定紫外线消杀装置为特定场景物流运输车驾驶室的最优解决方案。 展开更多
关键词 Kano模型 TRIZ TOPSIS 物流运输车 消杀装置 创新设计方法
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基于SPA-熵权-TOPSIS模型的露天矿边坡岩体风险分级评价及应用 认领 引用
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作者 马聪 金爱兵 +2 位作者 王志凯 陈帅军 郑尤美 《工程科学学报》 EI CAS CSCD 北大核心 2026年第6期1220-1231,共12页
露天矿边坡稳定性受岩体性质以及边坡高度、坡率等多因素共同影响,具有不确定性和复杂性,极限平衡、数值模拟等单一稳定性评价方法难以全面的获取边坡稳定性分析结果.为此,提出一种融合数值模拟与多指标决策理论的综合评价体系,以期更... 露天矿边坡稳定性受岩体性质以及边坡高度、坡率等多因素共同影响,具有不确定性和复杂性,极限平衡、数值模拟等单一稳定性评价方法难以全面的获取边坡稳定性分析结果.为此,提出一种融合数值模拟与多指标决策理论的综合评价体系,以期更好表征边坡稳定性状态.研究结果表明:(1)GSI在SPA-熵权-TOPSIS综合体系中对相对贴近度影响最为显著,边坡高度次之,最后是台阶坡角;(2)最大水平应力、最大位移和塑性区体积占比为评价指标体系的核心关键;(3)针对单一力学指标在稳定性判别上的不一致性,明确了多维度指标协同评价的必要性;(4)构建的SPA-熵权-TOPSIS综合评价体系有效融合了多源数值模拟数据,通过客观赋权纠正了传统评价中的主观偏差.该体系在露天矿边坡稳定性评估中展现出良好的适用性与精准度,为矿山安全分级管控与设计优化提供了量化的科学决策工具. 展开更多
关键词 边坡风险评价 数值模拟 SPA 熵权法 TOPSIS
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基于熵权-TOPSIS法的农业新质生产力评价与障碍分析 认领 引用 被引量：1
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作者 黄和平 许梦园 甘仙女 《中国生态农业学报（中英文）》 CAS CSCD 北大核心 2026年第6期1375-1389,共15页
农业生产力是社会生产力中最传统、最基础,也是最薄弱的部分,因而农业也是发展新质生产力任务最繁重、前景最广阔的领域。为探究农业新质生产力的发展水平,本文从高素质劳动者、高科技含量劳动资料、广范围劳动对象入手构建农业新质生... 农业生产力是社会生产力中最传统、最基础,也是最薄弱的部分,因而农业也是发展新质生产力任务最繁重、前景最广阔的领域。为探究农业新质生产力的发展水平,本文从高素质劳动者、高科技含量劳动资料、广范围劳动对象入手构建农业新质生产力评价指标体系,运用2013—2022年省际面板数据对农业新质生产力展开测度及时空特征分析。研究发现:1)全国农业新质生产力发展在总体上呈现出增长趋势,年均增长率为3.26%,但整体水平偏低,为0.12~0.18;农业新质生产力发展水平表现为东部>中部>东北部>西部。2)2013—2022年农业新质生产力各地区内部不平衡趋势逐渐扩大,尤其是西部和东北地区多极分化明显。3)影响农业新质生产力发展的主要因素依次为产业融合、机械化程度、数字化和农业劳动者教育水平。基于此得出以下政策启示:加强数据监测与评估机制,制定地区发展差异化政策,支持农业农村产业集群发展,推动农业科技创新与人才培养协同发展。 展开更多
关键词 农业新质生产力 熵权-TOPSIS法 Kernel密度估计 障碍因子识别
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基于指纹图谱定性、多成分定量结合化学计量学与熵权-TOPSIS法的健心颗粒质量评价研究 认领 引用
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作者 郑文炜 林雨佳 +3 位作者 郑傲梅 严锦贤 张宽 倪立坚 《中国药学杂志》 CAS CSCD 北大核心 2026年第2期209-218,共10页
目的 建立健心颗粒指纹图谱与15种成分定量分析方法,并结合化学计量学与熵权-逼近理想解排序法(TOPSIS)对其质量进行综合评价。方法 采用Thermo Scientific AccucoreTM XL C18色谱柱(4.6 mm×250 mm, 4μm),柱温30℃,流动相... 目的 建立健心颗粒指纹图谱与15种成分定量分析方法,并结合化学计量学与熵权-逼近理想解排序法(TOPSIS)对其质量进行综合评价。方法 采用Thermo Scientific AccucoreTM XL C18色谱柱(4.6 mm×250 mm, 4μm),柱温30℃,流动相为乙腈-0.2%磷酸水溶液,梯度洗脱,流速1.0 mL·min-1,检测波长260 nm,进样量10μL。建立了健心颗粒指纹图谱和15种指标成分的定量分析方法,结合聚类分析(hierarchical cluster analysis, HCA)、主成分分析(principal component analysis, PCA)、正交偏最小二乘判别分析(orthogonal partial least squares-discrimination analysis, OPLS-DA)与熵权-TOPSIS法综合评价15批健心颗粒质量。结果 指纹图谱与定量测定的方法学验证均良好,15批健心颗粒相似度均大于0.99,共标定39个共有峰,经对照品比对确认15个色谱峰,HCA、PCA与OPLS-DA结果一致,15批健心颗粒样品主要聚为2类,依据VIP值共筛选出8个差异标志物,定量测定15种成分(丹参素、原儿茶醛、咖啡酸、阿魏酸、毛蕊异黄酮葡萄糖苷、香蒲新苷、异鼠李素3-O-新橙皮苷、紫云英苷、芒柄花苷、紫草酸、丹酚酸B、桂皮醛、毛蕊异黄酮、丹酚酸A、芒柄花素)含量范围分别为0.055 6~0.203 7、0.022 3~0.061 0、0.009 3~0.032 1、0.009 0~0.023 4、0.014 3~0.056 3、0.006 4~0.058 2、0.001 8~0.017 9、0.050 1~0.080 4、0.007 3~0.022 7、0.106 0~0.235 2、1.191 7~3.005 3、0.032 3~0.106 9、0.022 8~0.045 5、0.109 3~0.239 1、0.020 4~0.035 9 mg·g-1;熵权-TOPSIS法评价表明S3批次样品质量最优。结论 建立的指纹图谱与15种成分定量分析的方法准确、高效,结合化学计量学与熵权-TOPSIS法可用于健心颗粒的整体质量评价,为健心颗粒质量控制提升提供参考。 展开更多
关键词 健心颗粒 指纹图谱 化学计量学 含量测定 熵权-TOPSIS 质量评价
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基于主成分分析法和熵权TOPSIS法的黄瓜嫁接砧木综合评价 认领 引用
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作者 谭秀芳 甄俊琦 +4 位作者 陈曦 李新峥 任广乾 马凯 徐鹏亮 《中国瓜菜》 CAS 北大核心 2026年第7期124-134,共11页
为筛选黄瓜嫁接栽培的优良砧木,以7个南瓜砧木品种(Z1~Z7)为试材,博杰616黄瓜自根苗(CK)为对照,系统分析砧木对嫁接黄瓜生长、根系形态、根系活力、氮素同化关键酶活性、果实品质及产量的影响,并采用主成分分析法和熵权TOPSIS法进行综... 为筛选黄瓜嫁接栽培的优良砧木,以7个南瓜砧木品种(Z1~Z7)为试材,博杰616黄瓜自根苗(CK)为对照,系统分析砧木对嫁接黄瓜生长、根系形态、根系活力、氮素同化关键酶活性、果实品质及产量的影响,并采用主成分分析法和熵权TOPSIS法进行综合评价。结果表明,嫁接可显著提高壮苗指数、根系活力、单株结瓜数、产量及谷氨酰胺合成酶(GS)、谷氨酸合酶(GOGAT)和硝酸还原酶(NR)活性,同时促进根长、根表面积、根尖数增加。结合砧木出苗率和果实商品性,对6种砧木进行综合评价,主成分分析法得分排序为Z3>Z1>Z5>Z4>Z2>Z6,Z1、Z3主成分得分分别为1.086和1.398;熵权TOPSIS法得分排序为Z1>Z3>Z2>Z5>Z4>Z6,Z1、Z3相对接近度C值分别为0.651和0.517。综合生长、根系性状、氮素代谢、品质及产量等指标,Z1和Z3性状优良,适宜作为黄瓜嫁接栽培的理想砧木。本研究结果为黄瓜优质高效生产中优良砧木的选择奠定了基础。 展开更多
关键词 黄瓜 砧木 主成分分析法 熵权TOPSIS法 综合评价
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EXISTENCE AND MULTIPLICITY OF NORMALIZED SOLUTIONS FOR THE PLANAR SCHRODINGER-POISSON SYSTEM WITH EXPONENTIAL CRITICAL GROWTH 认领 引用
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作者 Xueqin PENG 《Acta Mathematica Scientia》 SCIE CSCD 2026年第2期529-548,共20页
The paper deals with the following planar Schrödinger-Poisson system{-Δu+λu+φu=f(u), in ℝ2,-Δuφ=u2,in ℝ2,fR2u2dx=a2,u∈H1(ℝ2),where a∈(0,1),λ∈ℝis an undetermined parameter which... The paper deals with the following planar Schrödinger-Poisson system{-Δu+λu+φu=f(u), in ℝ2,-Δuφ=u2,in ℝ2,fR2u2dx=a2,u∈H1(ℝ2),where a∈(0,1),λ∈ℝis an undetermined parameter which appears as a Lagrange multiplier and f satisfies the exponential critical growth.Under suitable conditions on f,we manage to establish such critical points which emerge as a local minimizer or correspond to a mountain pass.Furthermore,by using genus theory,we obtain infinitely many solutions.The proofs are based upon the reduction method by working on a natural constraint,which is introduced by Bartsch and Soave[J Funct Anal,2017,272:4998–5037].Our results complement the results made by Cingolani and Jeanjean[SIAM J Math Anal,2019,51:3533–3568]where handle the Sobolev subcritical case. 展开更多
关键词 Schrödinger-Poisson system normalized solution exponential critical growth variational methods
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