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基于改进金豺狼优化算法的机器人定位精度提升

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机械设计与研究 2024年第1期40卷 46-50页

作者：劳淞潘亚娟胡义华柳州职业技术学院机电工程学院广西柳州545000 柳州工学院机械工程学院广西柳州545000 广西科技大学国际教育学院广西柳州545616

为提高工业机器人的定位精度,提高其满足工作要求的能力,提出了基于改进金豺狼优化算法(IGJO)的机器人定位精度提升新方法。首先,基于MDH模型建立了机器人运动学参数辨识的误差模型和目标函数。其次,针对金豺狼优化算法(GJO)存在的不足... 详细信息

为提高工业机器人的定位精度,提高其满足工作要求的能力,提出了基于改进金豺狼优化算法(IGJO)的机器人定位精度提升新方法。首先,基于MDH模型建立了机器人运动学参数辨识的误差模型和目标函数。其次,针对金豺狼优化算法(GJO)存在的不足,引入柯西变异策略,提出了IGJO算法,给出了IGJO用于参数变数的步骤。最后,以RB1200-5-0.9型机器人为例,利用IGJO对运动学参数进行辨识切。结果表明:IGJO能够快速完成机器人运动学参数辨识,且绝对定位精度较辨识前和GJO有大幅提高,具有一定的优势。

关键词：机器人运动学参数柯西变异金豺狼优化算法

A Novel Combined Trombe Wall System for Village Houses in Cold Regions of China

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Journal of Thermal Science 2021年第6期30卷 2254-2266页

作者： HEI Shanggang ZHANG Hong pan Wenjia School of Architecture Southeast UniversityNanjing 210096China

Trombe walls have significant energy-saving features and are therefore of great interest to ***,additional research about the Trombe wall is needed to reduce indoor temperature fluctuations and to improve thermal behavior under different climatic conditions.A new Trombe wall system was proposed which uses Venetian blinds and a *** field tests were conducted to compare the thermal performance of four types of rooms:(ⅰ)no Trombe wall(control),(ⅱ)classical Trombe wall(TW),(ⅲ)Trombe wall with Venetian blinds(TW+VB),and(ⅳ)Trombe wall with Venetian blinds and a basement(TW+VB+B).The field measurements were conducted during the winter near Shihezi City in northwest *** objective of this study was(ⅰ)to evaluate the thermal performance of a novel Trombe wall system under different operation conditions,and(ⅱ)to confirm the optimal angle of Venetian blinds during the heating *** results demonstrated that the TW+VB+B system effectively reduced indoor temperature fluctuations after ***,during the daytime,the average air temperatures in the test rooms were 13.6℃higher in the TW+VB+B system than in the *** average temperature at the air outlet in the TW+VB+B system was 4.9℃higher than that in the TW+VB system during the daytime,and the average predicted mean vote(PMV)of the test room was 1.02 units greater in the TW+VB+B system than in the *** thermal efficiency remains in the range of 40%-65%when the Venetian blind angle was set at 45°.In conclusion,the experiment results showed that the TW+VB+B system can not only reduce indoor temperature fluctuations but also improve thermal performance in *** the heating energy consumption in buildings and pollutants emission in the environment were lessened through the application of this passive solar energy-saving ***,this can provide valuable insights for improving the thermal performance of the novel Trombe Wall system in such village houses.

关键词： trombe wall thermal performance predicted mean vote passive solar technology demand-side management

左心室辅助装置置入术后右心衰的预测因素、处理策略和装置应

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中华胸心血管外科杂志 2024年第8期40卷 508-512页

作者：潘晨光姜云飞邱志兵南京医科大学附属南京医院心胸血管外科南京210006

目前,置人左心室辅助装置(left ventricular assist device,LVAD)已成为终末期心力衰竭治疗的重要手段,但LVAD术后右心衰(right ventricular heart-failure,RVF)发生率为5%~44%,而且患者需要右心室机械辅助时,死亡比例最高达50%。因此,... 详细信息

目前,置人左心室辅助装置(left ventricular assist device,LVAD)已成为终末期心力衰竭治疗的重要手段,但LVAD术后右心衰(right ventricular heart-failure,RVF)发生率为5%~44%,而且患者需要右心室机械辅助时,死亡比例最高达50%。因此,如果术前能监测各项相关因素指标进行预测评估并及时干预以及加强围手术期管理,对降低右心室功能障碍、改善预后十分重要。本文对LVAD术后发生RVF的预测因素、处理策略及装置的应用进行综述。

关键词：左心室辅助装置围手术期管理右心衰预测因素处理策略因素指标右心室死亡比例

Predictive Event-Triggered Control for Disturbanced Wireless Networked Control Systems

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Journal of Systems Science & Complexity 2021年第3期34卷 1028-1043页

作者： ZHAO Yunbo pan Xiaokang YU Shiming College of Information Engineering Zhejiang University of TechnologyHangzhou 310023China

The control and scheduling for wireless networked control system with packet dropout and disturbance are investigated.A prediction based event triggered control is proposed to reduce data transmissions while preserving the robustness against external ***,a trigger threshold is especially designed to maintain the difference of the estimated and actual states below a proper boundary when system suffers from packet *** a predictive controller is designed to compensate for packet dropouts by utilizing the packet-based control *** sufficient conditions to ensure the closed-loop system being uniformly ultimately bounded are derived,with consequently the controller gain *** examples illustrate the effectiveness of the proposed approach.

关键词： Event-trigger packet-based control wireless networked control systems

Predicting Microbe-Disease Association Based on Heterogeneous Network and Global Graph Feature Learning

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Chinese Journal of Electronics 2022年第2期31卷 345-353页

作者： WANG Yueyue LEI Xiujuan pan Yi School of Computer Science Shaanxi Normal University Department of Computer Science Georgia State University Faculty of Computer Science and Control Engineering Shenzhen Institute of Advanced TechnologyChinese Academy of Sciences

Numerous microbes inhabit human body,making a vast difference in human health. Hence, discovering associations between microbes and diseases is beneficial to disease prevention and treatment. In this study,we develop a prediction method by learning global graph feature on the heterogeneous network(called HNGFL).Firstly, a heterogeneous network is integrated by known microbe-disease associations and multiple *** on microbe Gaussian interaction profile(GIP) kernel similarity, we consider different effects of these microbes on organs in the human body to further improve microbe similarity. For disease similarity network, we combine GIP kernel similarity, disease semantic similarity and disease-symptom similarity. And then, an embedding algorithm called GraRep is used to learn global structural information for this network. According to vector feature of every node, we utilize support vector machine classifier to calculate the score for each microbe-disease pair. HNGFL achieves a reliable performance in cross validation, outperforming the compared methods. In addition, we carry out case studies of three diseases. Results show that HNGFL can be considered as a reliable method for microbe-disease association prediction.

关键词： diseases global structural information disease-symptom similarity patient diagnosis support vector machine classifier Gaussian processes heterogeneous network microorganisms microbe Gaussian interaction profile kernel similarity global graph feature learning microbe-disease association prediction GIP kernel similarity learning (artificial intelligence) GraRep pattern classification disease semantic similarity bioinformatics HNGFL support vector machines graph theory

Site occupation and energy transfer in full color emitting phosphor Ba2Ca(BO3)2:Ce3+(K+),Eu^(2+),Mn2+

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Journal of Rare Earths 2022年第11期40卷 1691-1698,I0002页

作者： Qingsong Hu Zaifa pan Guijie Liang Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices Hubei University of Arts and ScienceXiangyang 441053China College of Chemical Engineering Zhejiang University of TechnologyHangzhou 310014China

White light-emitting diodes(WLEDs)fabricated by single-phase full color emitting phosphor are an emerging solution for health *** crystallographic site occupation of activators in a proper host lattice is crucial for sophisticated design of such ***,we report a high quality white lightemitting phosphor Ba_(2)Ca(BO_(3))_(2):Ce^(3+)(K^(+)),Eu^(2+),Mn^(2+)with spectral distribution covering whole visible *** light emission originates from Ce3+ions occupying preferentially Ba^(2+)site by controlling synthesis *** and red lights are obtained from Eu^(2+)occupying Ba2+(and Ca)site and Mn2+occupying Casite,*** this triple-doped phosphor,strong red emission with a low concentration of Mn2+is realized by the efficient energy transfer from Ce3+and Euto ***,high quality white light is accomplished by properly tuning the relative doping amount of Ce^(3+)(K^(+))/Eu^(2+)/Mn^(2+)based on efficient simultaneous energy *** results indicate that Ba_(2)Ca(BO_(3))_(2):Ce^(3+)(K^(+)),Eu^(2+),Mn^(2+)is a promising white light-emitting phosphor in WLEDs application.

关键词： Single-phase Full color phosphor Site preference occupation Energy transfer Ba2Ca(BO3)2:Ce3+(K+) Eu^(2+) Mn2+ Rare earths

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论自动投案的时间限制标准认定

新余学院学报 2024年第1期29卷 35-39页

作者：高铭潘纪乐中南大学法学院湖南长沙410083

符合自动投案的时间限制是自动投案成立的前提和关键,但是目前理论界对于自动投案时间的限制并没有形成一个统一的标准,部分满足法律规定的行为却不符合自动投案的实质,有必要确立一个自动投案时限的实质性标准来填补理论上的空缺。当前... 详细信息

符合自动投案的时间限制是自动投案成立的前提和关键,但是目前理论界对于自动投案时间的限制并没有形成一个统一的标准,部分满足法律规定的行为却不符合自动投案的实质,有必要确立一个自动投案时限的实质性标准来填补理论上的空缺。当前,法律规定中的归案标准无法穷尽所有情形,也忽视了抓捕行为对自由意志的影响,致使自动投案的认定存在诸多争议。通过引入控制的概念对归案标准进行明确,以司法机关宣告实施控制作为时限的补充,提出自动投案的时间限制标准。

关键词：自动投案时间限制控制归案标准

麝香通心滴丸与美托洛尔联合治疗老年冠心病心绞痛的效果研究

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中国现代药物应用 2024年第18期18卷 130-132页

作者：潘艳枫王哲山东省军区济南第十一离职干部休养所 250031

目的分析麝香通心滴丸与美托洛尔联合治疗老年冠心病(CHD)心绞痛的效果。方法选取老年CHD心绞痛患者82例,使用随机数字表分为对照组及研究组,每组41例。对照组患者采用美托洛尔治疗,研究组患者在对照组基础上联合麝香通心滴丸治疗。... 详细信息

目的分析麝香通心滴丸与美托洛尔联合治疗老年冠心病(CHD)心绞痛的效果。方法选取老年CHD心绞痛患者82例,使用随机数字表分为对照组及研究组,每组41例。对照组患者采用美托洛尔治疗,研究组患者在对照组基础上联合麝香通心滴丸治疗。比较两组患者的临床疗效,心绞痛发作持续时间与发作频次,不良反应发生情况。结果研究组总有效率95.12%较对照组的78.05%高(P0.05)。结论麝香通心滴丸与美托洛尔联合治疗老年CHD心绞痛效果可靠,能够有效抑制心绞痛发作时间与频次,安全性较为理想。

关键词：麝香通心滴丸美托洛尔冠心病心绞痛老年

General variational solution for seismic and static active earth pressure on rigid walls considering soil tensile strength cut-off

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2023年第5期24卷 432-449页

作者： Shiguo XIAO Yuan QI pan XIA Key Laboratory of High-Speed Railway Engineering Ministry of EducationSouthwest Jiaotong UniversityChengdu 60031China School of Civil Engineering Southwest Jiaotong UniversityChengdu 610031China Department of Geological Engineering Southwest Jiaotong UniversityChengdu 610031China

According to the limit equilibrium state of soils behind rigid walls and the pseudo-static approach,a general closed-form solution to seismic and static active earth pressure on the walls,which considers shear and tension failure of the retained soil,is put forward using a variational calculus *** application point of the active resultant force specified in the proposed method is explained with a clear physical meaning related to possible movement modes of the *** respect of the derived nine dependent equations reflecting the functional characteristics of the earth pressure,the proposed method can be performed easily via an implicit *** are 13 basic factors related to the retained soils,walls,and external loads to be involved in the proposed *** tension crack segment of the slip surface is obviously influenced by these parameters,apart from vertical seismic coefficient and geometric bounds of the surcharge,but the shear slip segment maintains an approximately planar shape almost uninfluenced by these ***,the proposed method quantitatively reflects that the resultant of the active earth pressure is always within a limited range under different possible movements of the same wall.

关键词： Active earth pressure Tensile strength cut-off Variational calculus method Pseudo-static method Strip surcharge