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A Multi-strategy Improved Snake Optimizer Assisted with Population Crowding Analysis for Engineering Design Problems

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Journal of Bionic Engineering 2024年第3期21卷 1567-1591页

作者： Lei Peng Zhuoming Yuan guangming Dai Maocai wang Jian Li Zhiming Song Xiaoyu Chen School of Computer Science China University of GeosciencesWuhan430074China Hubei Key Laboratory of Intelligent Geo-Information Processing China University of GeosciencesWuhan430074China China Astronautics Standards Institute Beijing100071China

Snake Optimizer(SO)is a novel Meta-heuristic Algorithm(MA)inspired by the mating behaviour of snakes,which has achieved success in global numerical optimization problems and practical engineering ***,it also has certain drawbacks for the exploration stage and the egg hatch process,resulting in slow convergence speed and inferior solution *** address the above issues,a novel multi-strategy improved SO(MISO)with the assistance of population crowding analysis is proposed in this *** the algorithm,a novel multi-strategy operator is designed for the exploration stage,which not only focuses on using the information of better performing individuals to improve the quality of solution,but also focuses on maintaining population *** boost the efficiency of the egg hatch process,the multi-strategy egg hatch process is proposed to regenerate individuals according to the results of the population crowding *** addition,a local search method is employed to further enhance the convergence speed and the local search *** is first compared with three sets of algorithms in the CEC2020 benchmark functions,including SO with its two recently discussed variants,ten advanced MAs,and six powerful CEC competition *** performance of MISO is then verified on five practical engineering design *** experimental results show that MISO provides a promising performance for the above optimization cases in terms of convergence speed and solution quality.

关键词： Snake optimizer Multi-strategy Population crowding analysis Engineering design problem

食管癌患者放射治疗前控制营养状态评分对放射性肺炎发生的预测价值分析

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肿瘤综合治疗电子杂志 2024年第3期10卷 134-139页

作者：韦士勤王光明刘玉平李璐璐文娟阜阳市肿瘤医院放疗科安徽阜阳236000

目的分析食管癌患者放射治疗(以下简称放疗)前控制营养状态(controlling nutritional status,CONUT)评分对放射性肺炎(radiation pneumonia,RP)发生的预测价值。方法回顾性分析2017年1月至2023年3月阜阳市肿瘤医院收治的106例接受放疗... 详细信息

目的分析食管癌患者放射治疗(以下简称放疗)前控制营养状态(controlling nutritional status,CONUT)评分对放射性肺炎(radiation pneumonia,RP)发生的预测价值。方法回顾性分析2017年1月至2023年3月阜阳市肿瘤医院收治的106例接受放疗的食管癌患者的临床资料,比较CONUT评分≤2分组与CONUT评分≥3分组患者的RP分级结果。比较症状性RP组与无症状性RP组患者的临床资料,采用多因素Logistic回归分析探讨RP发生的独立影响因素。结果106例食管癌患者放疗后180 d内有76例(71.7%)患者出现RP,RP发生的中位时间是放疗后53 d,症状性RP发生率、重度RP发生率、死亡率分别为24.5%、11.3%、0.9%。放疗前CONUT评分≥3分组患者的症状性RP和重度RP的发生率均显著高于CONUT评分≤2分组(均P400、高血压病史、合并肺气肿、胸中段食管癌、>3个疗程的同步化疗的比例均显著高于无症状性RP组(均P3个疗程的同步化疗均是症状性RP发生的独立影响因素(均P<0.05)。结论食管癌患者放疗前的CONUT评分是RP发生的独立影响因素,应关注患者的营养状况,适当给予营养支持。

关键词：食管癌放射性肺炎控制营养状态评分预测价值营养支持

容积旋转调强与调强放疗在宫颈癌放疗中的应用及剂量学、安全性研究

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陕西医学杂志 2024年第2期53卷 194-198页

作者：常娟娟李太平康婉英张飞王光明阜阳市肿瘤医院放疗科安徽阜阳236000

目的:探究容积旋转调强放疗(VMAT)与调强放疗(IMRT)在宫颈癌根治术后放疗中的应用及剂量学、安全性。方法:选取宫颈癌根治后且拟行放疗的患者60例,根据随机数字表法将其分为VMAT组(30例)和IMRT组(30例),分别给予VMAT治疗与IMRT治疗,对... 详细信息

目的:探究容积旋转调强放疗(VMAT)与调强放疗(IMRT)在宫颈癌根治术后放疗中的应用及剂量学、安全性。方法:选取宫颈癌根治后且拟行放疗的患者60例,根据随机数字表法将其分为VMAT组(30例)和IMRT组(30例),分别给予VMAT治疗与IMRT治疗,对比两组机器跳数、治疗计划执行时间、靶区适形度(CI)和均匀性指数(HI)、危及器官的剂量差异及不良反应等。结果:VMAT组在计划控制点多于IMRT组的情况下,其治疗时间仍短于IMRT组。通过Delta验证,VAMT组患者的3%/3 mm和4%/4 mmγ通过率低于IMRT组(均P0.05),但与IMRT组相比,VAMT组的HI更接近于1,差异有统计学意义(P0.05)。两组疗效及随访期内复发或转移情况对比均无统计学差异(均P>0.05)。结论:在宫颈癌根治术后放疗时,VMAT治疗可时间缩短,且治疗效率及剂量学参数优于IMRT,可有效保护骨盆、直肠和膀胱,安全性好。

关键词：宫颈癌容积旋转调强调强放疗剂量危及器官安全性

Evaluation of the effects of EPS composite soil replacement on the dynamic performance of caisson structure using shaking table tests

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Earthquake Engineering and Engineering Vibration 2024年第4期23卷 829-843页

作者： Gao Hongmei Ji Zhanpeng Zhang Xinlei Zhang Shushan wang Zhihua Shen guangming Research Center of Urban Underground Space Nanjing Tech UniversityNanjing 211816China Institute of Geotechnical Engineering Nanjing Tech UniversityNanjing 211816China

The seismic performance of a caisson structure under two types of models with a saturated sandy foundation(CSS)and an expanded polystyrene(EPS)composite soil foundation(CES)are studied using shaking table *** macro phenomena of the two different foundation models are described and *** effects of the replacement of EPS composite soil on seismic-induced liquefaction of backfill and the dynamic performance of a caisson structure are evaluated in *** results show that the excess pore water pressure generation in the CES is significantly slower than that in the CSS during the *** dynamic earth pressure acting on the caisson has a triangular *** response of horizontal acceleration,displacement,settlement,and rotation angle of the caisson in the CES is smaller than that in the CSS,which means the caisson in the CES has a better seismic ***,the out-of-phase phenomenon between dynamic earth thrust and inertial force in the CES is more obvious than that in the CSS,which is beneficial to reduce the lateral force and improve the stability of the caisson structure.

关键词： EPS composite soil foundation Caisson-type quay wall shaking table test phase difference rotation angle

SOD3表达在非诺贝特治疗小鼠脑缺血再灌注损伤中的作用机制

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脑与神经疾病杂志 2024年第7期32卷 419-423页

作者：马江磊张晨芳杨锡彤程建杰王光明大理大学临床医学院云南671000 大理大学第一附属医院基因检测中心烟台毓璜顶医院神经内科

目的探究SOD3的表达在非诺贝特治疗缺血再灌注(I/R)机制中的作用。方法使用基因敲除技术构建SOD3基因敲除的小鼠,通过PCR技术和DNA测序技术鉴定SOD3小鼠的基因分型,蛋白印迹法检测SOD3蛋白的表达。将野生型和SOD3^(-/-)型小鼠随机分为4... 详细信息

目的探究SOD3的表达在非诺贝特治疗缺血再灌注(I/R)机制中的作用。方法使用基因敲除技术构建SOD3基因敲除的小鼠,通过PCR技术和DNA测序技术鉴定SOD3小鼠的基因分型,蛋白印迹法检测SOD3蛋白的表达。将野生型和SOD3^(-/-)型小鼠随机分为4组,野生型对照羟甲基纤维素(CMC)组(6只)、野生型非诺贝特治疗(Feno)组(6只)、SOD3^(-/-)型CMC对照(***)组(5只)、SOD3^(-/-)型非诺贝特治疗(***)组(5只)。使用线栓法制作小鼠大脑中动脉栓塞模型,栓塞90 min后拔出栓线,脑I/R 60 min处死小鼠。手术过程中用脑血流监测仪测局部脑血流,TTC染色后,分析各组脑梗死情况。结果PCR和DNA测序分析显示成功构建SOD3^(-/-)小鼠。I/R后,各组脑血流比较差异无统计学意义(P>0.05)。Feno组较CMC组的脑梗死体积明显缩小(P<0.001);***组较***组梗死体积缩小(P<0.001);***组梗死面积较Feno组显著增加(P<0.05)。结论SOD3的表达是非诺贝特治疗脑I/R损伤的机制之一。

关键词：脑缺血再灌注损伤非诺贝特 SOD3 小鼠

Optimal Portfolio Selection Strategies under Some Constraints

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Wuhan University Journal of Natural Sciences 2009年第4期14卷 281-286页

作者： LUO Kui,wang guangming,HU Yijun School of Mathematics and Statistics,Wuhan University,Wuhan 430072,Hubei,China School of Mathematics and Statistics Wuhan University Wuhan China

A portfolio selection problem for any utility function is introduced, where all the market coefficients are random and the wealth process under any admissible trading strategy is not allowed to be below a benchmark wealth process. The problem is completely solved using a decomposition approach. First, the portfolio selection problem is formulated, and its feasibility is characterized. Then, the problem is decomposed to two steps to solve. After a system of equations for a Lagrange multiplier is solved, the portfolio selection problem is derived as the replicating portfolios of contingent claims. Finally, some simulations are demonstrated.

关键词： portfolio selection Lagrange multiplier stochastic differential equation Monte-Carlo simulation

Cerium Oxide Film Prepared from Molten Salts

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Rare Metals 2001年第2期20卷 95-100页

作者： Xindong wang, guangming Liu, Yanfang Liu, Shuzhen Duan Department of Physical Chemistry, University of Science and Technology Beliing, Beliing 100083. China) 北京科技大学北京 100083.

Cerium oxide film formed on the nickel electrode at 453 K in LiNO3-KNO3 molten salts. The molten salt background and the cathode process of Leeds on the nickel electrode were studied by using cyclic voltammetry. The cathodic reaction mechanism of the molten salt background was: O-2(-)+e O-2(-2); O-2+2NO(3)(-) --> 2NO(2)(-)+2O(2). According to the results of SEM and XPS, cerium oxide film, which is composed of CeO2, can form on the nickel electrode at - 1.850 V vs. Ag/AgNO3 (0.1 mol/L) reference electrode.

关键词： cerium oxide low-temperature molten salts film

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补体系统与阿尔茨海默病的相关研究现状

锦州医科大学学报 2024年第3期45卷 109-113页

作者：金朗王光明李梦凡张金彪李振光滨州医学院第二临床学院山东烟台264003 威海市立医院山东威海264200

阿尔茨海默病(alzheimer′s disease, AD)是一种常见的神经变性疾病,其严重危害着老年人群的生活质量。补体系统是先天免疫系统的组成成分之一,其在神经系统炎症和神经变性疾病中起着至关重要的作用,并与阿尔茨海默病的病理过程、临床... 详细信息

阿尔茨海默病(alzheimer′s disease, AD)是一种常见的神经变性疾病,其严重危害着老年人群的生活质量。补体系统是先天免疫系统的组成成分之一,其在神经系统炎症和神经变性疾病中起着至关重要的作用,并与阿尔茨海默病的病理过程、临床诊断、治疗都有密切的关联。本文对补体系统与AD病理机制、生化标志物、治疗方法的相关研究进行综述,以期为AD提供新的研究、诊断和治疗方向。

关键词：阿尔茨海默病补体生化标志物

Civilized Production-One of the Solutions for Antidumping towards Chinese Products

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Civilized Production-One of the Solutions for Antidumping to...