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Multi-population particle swarm optimization algorithm for automatic design of steel frames

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Frontiers of Structural and Civil Engineering 2024年第1期18卷 89-103页

作者： Wenchen SHAN Jiepeng LIU yao ding Y.Frank CHEN Junwen ZHOU Institute of Smart City and Intelligent Transportation Southwest Jiaotong UniversityChengdu 610000China School of Civil Engineering Chongqing UniversityChongqing 400045China Department of Civil Engineering the Pennsylvania State UniversityMiddletownPA 17057USA

Steel structures are widely used;however,their traditional design method is a trial-and-error procedure which is neither efficient nor cost ***,a multi-population particle swarm optimization(MPPSO)algorithm is developed to optimize the weight of steel frames according to standard design *** are made to improve the algorithm performances including the constraint-based strategy,piecewise mean learning strategy and multi-population cooperative *** proposed method is tested against the representative frame taken from American standards and against other steel frames matching Chinese design *** related parameter influences on optimization results are *** the representative frame,MPPSO can achieve greater efficiency through reduction of the number of analyses by more than 65% and can obtain frame with the weight for at least 2.4%lighter.A similar trend can also be observed in cases subjected to Chinese design *** addition,a migration interval of 1 and the number of populations as 5 are recommended to obtain better MPPSO *** purpose of the study is to propose a method with high efficiency and robustness that is not confined to structural scales and design *** aims to provide a reference for automatic structural optimization design problems even with dimensional *** proposed method can be easily generalized to the optimization problem of other structural systems.

关键词： steel frame multi-population particle swarm optimization automatic structural optimization design

希腊古代世界的西欧中世纪再现——论拜占庭文化对意大利文艺复兴文学的影响

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国外文学 2024年第1期 75-85页

作者：丁瑶上海交通大学外国语学院

中世纪西欧在经历所谓“蛮族入侵时代”之后,陷入了对希腊文化蒙昧的“黑暗时代”,此时的拜占庭却以回归古希腊为要旨,形成了其独特的文化形态。自6世纪至14世纪,拜占庭文化与西欧文化关系分为三个阶段:分立、碰撞和融合。在此过程中,... 详细信息

中世纪西欧在经历所谓“蛮族入侵时代”之后,陷入了对希腊文化蒙昧的“黑暗时代”,此时的拜占庭却以回归古希腊为要旨,形成了其独特的文化形态。自6世纪至14世纪,拜占庭文化与西欧文化关系分为三个阶段:分立、碰撞和融合。在此过程中,以巴尔拉姆、普勒桑为代表的诸多拜占庭大师西迁意大利,为人文主义者讲授希腊语和希腊文化,极大推动了西欧文艺复兴在意大利的兴起。与此同时,拜占庭文学中对个性的张扬、对个人欲望的肯定以及对“享乐人生”态度的彰显,以意大利为窗口向西欧大陆传播,为后来的欧洲提供了独特的文学思想、创作主张乃至审美方式。可以说,拜占庭在塑造欧洲中世纪文化以及间接塑造现代西方世界文化方面发挥了至关重要的作用。

关键词：拜占庭-希腊文化西欧文学意大利文艺复兴影响研究

Prognostic significance of CDKN2A expression in colon adenocarcinoma: insights from TCGA analysis

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Cancer Advances 2024年第16期7卷 1-10页

作者： Wei Fu yao Wang Qin-Ming Yan Guo-Bin Cheng Lin-Ya Lyu yao ding Department of Gastroenterology 925th Hospital of Joint Logistics Support Force of People’s Liberation Army of ChinaGuiyang 510009China

Background:The cyclin-dependent kinase inhibitor 2a(CDKN2A)gene,identified as the multiple tumor suppressor gene,functions as a regulatory gene implicated in cancer *** significance lies in its pivotal involvement in the genesis of various tumors;notwithstanding,the precise connection between CDKN2A and c olon adenocarcinoma(COAD)remains ***:The objective of this research was to assess the predictive importance of CDKN2A in COAD by analyzing data from The Cancer Genome Atlas *** regression,signed rank test,Wilcoxon test,and Kruskal-Wallis test were used to examine CDKN2A expression levels and clinicopathological *** and multivariate Cox r egression analyses and Kaplan-Meier analysis found prognostic ***,gene set enrichment analysis identified key CDKN2A expression *** study additionally examined CDKN2A expression with tumor immune infiltration using The Cancer Genome Atlas data and single sample gene set enrichment ***:The results of this investigation indicated a substantial connection between higher CDKN2A expression and negative outcomes in terms of overall survival and disease-related survival among COAD *** set enrichment analysis indicated a tight link between CDKN2A and both the cell cycle and hedgehog signaling *** evaluation employing single sample gene set enrichment analysis demonstrated a positive link between CDKN2A expression with infiltration by iDCs,whereas a negative correlation was detected with infiltration by helper T ***:In conclusion,the present study gives strong data supporting the predictive value of CDKN2A and its possible usefulness as a biomarker for ***,our results show a reasonable link between CDKN2A expression and immune influx in COAD,putting light on the role of CDKN2A in the control of the tumor ***,additional studies are needed to confirm the underlying m

关键词： CDKN2A colon adenocarcinoma immune infiltration prognostic analysis helper T cells

Efficacy of Huangma ding or autologous platelet-rich gel for the diabetic lower extremity arterial disease patients with foot ulcers

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World Journal of Diabetes 2024年第5期15卷 923-934页

作者： Xue-Qin Wang Dan-Lan Pu Wei-Ling Leng Xiao-Tian Lei Jiang Juan Zou La ding yao Jia-Zhuang Xi Li Jian Teng Miao Qi-Nan Wu Endocrinology Department The People’s Hospital of Yubei District of Chongqing CityChongqing 401120China Department of Endocrinology Chongqing Yubei District People’s HospitalChongqing 400030China Endocrinology Department The First Affiliated Hospital of the Army Medical UniversityChongqing 400038China Endocrinology and Nephrology Department Chongqing University Cancer Hospital and Chongqing Cancer Institute and Chongqing Cancer HospitalChongqing 400016China Department of Endocrinology Dazu Hospital of Chongqing Medical UniversityThe People’s Hospital of DazuChongqing 402360China

BACKGROUND Diabetes foot is one of the most serious complications of diabetes and an important cause of death and disability,traditional treatment has poor efficacy and there is an urgent need to develop a practical treatment *** To investigate whether Huangma ding or autologous platelet-rich gel(APG)treatment would benefit diabetic lower extremity arterial disease(LEAD)patients with foot *** A total of 155 diabetic LEAD patients with foot ulcers were enrolled and divided into three groups:Group A(62 patients;basal treatment),Group B(38 patients;basal treatment and APG),and Group C(55 patients;basal treatment and Huangma ding).All patients underwent routine follow-up visits for six *** follow-up,we calculated the changes in all variables from baseline and determined the differences between groups and the relationships between *** The infection status of the three groups before treatment was the ***(PCT)improved after APG and Huangma ding treatment more than after traditional treatment and was significantly greater in Group C than in Group *** regression analysis revealed that PCT was positively correlated with total amputation,primary amputation,and minor amputation *** ankle-brachial pressure and the transcutaneous oxygen pressure in Groups B and C were greater than those in Group *** major amputation rate,minor amputation rate,and total amputation times in Groups B and C were lower than those in Group *** Our research indicated that diabetic foot ulcers(DFUs)lead to major amputation,minor amputation,and total amputation through local infection and poor microcirculation and *** ding and APG were effective attreating *** clinical efficacy of Huangma ding was better than that of autologous platelet gel,which may be related to the better control of local infection by Huangma *** finding suggested that in patients with DFUs combined with coinfection,controll

关键词： Diabetic foot ulcer Huangma ding Autologous platelet-rich gel Ankle-brachial index Transcutaneous oxygen partial pressure

数字检察视域下虚假仲裁法律监督理论拓补与路径构造

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兰州学刊 2024年第5期 120-129页

作者：丁瑶山东大学法学院

虚假仲裁因其高度隐秘性成为当前检察监督的盲区。由于仲裁“依当事人申请”的法院撤销权受限、仲裁机构内部控制动力机制不足等因素,亟需加强虚假仲裁检察监督;而当前检察机关的“间接监督”模式限缩了其对虚假仲裁的规制能力,传统法... 详细信息

虚假仲裁因其高度隐秘性成为当前检察监督的盲区。由于仲裁“依当事人申请”的法院撤销权受限、仲裁机构内部控制动力机制不足等因素,亟需加强虚假仲裁检察监督;而当前检察机关的“间接监督”模式限缩了其对虚假仲裁的规制能力,传统法律监督方式对虚假仲裁的查处力度相对孱弱。在数字检察背景下,通过数字化法律监督方式应对虚假仲裁成为有效解决路径。同时,数字化检察监督模式亦面临新的挑战,亟需进行理论拓补与制度构建。虚假仲裁数字检察监督的权力基础源于宪法对检察机关法律监督的赋权以及仲裁的准司法性,对虚假仲裁的数字检察监督需树立积极主义法律监督观进行理念调适。应当通过协同治理下虚假仲裁信息源获取、虚假仲裁识别与查明的算法工具辅助、虚假仲裁数字检察监督的限度与规范化等,构建虚假仲裁数字检察监督实现路径。

关键词：虚假仲裁数字检察法律监督权力限度

中国汉族成年人群单不饱和脂肪酸摄入量与非酒精性脂肪性肝病风险关系的回顾性病例对照研究

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中国全科医学 2024年第29期27卷 3623-3628页

作者：付伟程国彬吕麟亚丁瑶王瑶赵俊龙联勤保障部队第925医院消化内科空军军医大学基础医学院医学遗传学与发育生物学系

背景尽管单不饱和脂肪酸（MUFA）摄入与非酒精性脂肪性肝病（NAFLD）的关联已受到关注，但在中国人群中的研究较少。目的探讨中国人群MUFA每日摄入量与NAFLD发病率之间的关联，并确定MUFA摄入量对NAFLD风险的潜在阈值。方法本研究数... 详细信息

背景尽管单不饱和脂肪酸（MUFA）摄入与非酒精性脂肪性肝病（NAFLD）的关联已受到关注，但在中国人群中的研究较少。目的探讨中国人群MUFA每日摄入量与NAFLD发病率之间的关联，并确定MUFA摄入量对NAFLD风险的潜在阈值。方法本研究数据从Dryad数据库获取并严格遵守Dryad的服务条款（https://***/10.5061/dryad.8nn2j46）。选取2015年4月—2017年8月在福建医科大学附属南平第一医院治疗的534例NAFLD患者作为病例组，选取同期534例体检健康者作为对照组。使用半定量食物频率问卷（SQFFQ）收集参与者的典型食物消费信息，并计算MUFA每日摄入量。采用综合分析策略，包括基线特征、多变量统计、非线性关系及亚组探究，探讨MUFA每日摄入量与NAFLD发病率的关联，同时考虑多种混杂因素如年龄、性别、生活方式和其他饮食成分，以确定MUFA对NAFLD风险的潜在阈值。结果在调整模型中，MUFA每日摄入量是NAFLD风险的影响因素（OR=1.04,95%CI=1.02～1.07,P<0.001）。将MUFA每日摄入量转换为分类变量后，在调整模型中，随着MUFA每日摄入量的增加，NAFLD风险呈增加趋势（P趋势<0.001）。非线性分析表明，当MUFA每日摄入量达到39.04 g/d时，其与NAFLD风险的关系发生显著变化（P=0.045）。MUFA每日摄入量<39.04 g/d时，NFALD风险为1.08(95%CI=1.04～1.11,P<0.001)。亚组分析结果显示，性别、年龄、能量每日摄入量与NAFLD风险间存在交互作用（P交互<0.05）。结论增加MUFA每日摄入量与较高的NAFLD风险相关，并在特定阈值（39.04 g/d）后呈现非线性关系。这一发现强调了在NAFLD管理中考虑饮食脂肪的质量和数量的重要性。

关键词：非酒精性脂肪性肝病单不饱和脂肪酸饮食脂肪风险因素非线性关系

来源：博看期刊

激光清洗工艺对航空铝合金组织及疲劳性能的影响研究

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中国激光 2024年第16期51卷 90-99页

作者：程程余玮琛丁瑶邱太文富双超唐云洋中国商飞上海飞机制造有限公司航空制造技术研究所上海201324 中国商飞上海飞机制造有限公司计量测试中心上海201324

采用脉冲激光器,开展了航空铝合金表面漆层去除试验,通过外观检查、光学显微镜(OM)、扫描电镜(SEM)、原位温度检测、力学性能检测和高周疲劳试验,研究了激光清洗工艺对航空铝合金组织、力学及疲劳性能的影响规律。结果表明:当激光功率... 详细信息

采用脉冲激光器,开展了航空铝合金表面漆层去除试验,通过外观检查、光学显微镜(OM)、扫描电镜(SEM)、原位温度检测、力学性能检测和高周疲劳试验,研究了激光清洗工艺对航空铝合金组织、力学及疲劳性能的影响规律。结果表明:当激光功率和脉冲频率分别为80 W和100 kHz时,可去除铝合金表面环氧底漆涂层,但试样表面仍有漆层残余。当激光功率和脉冲频率分别达到500 W和500 kHz时,表面温度最高不超过115℃,未观察到明显的热影响区,材料表面10μm深度范围内的组织出现部分烧蚀和熔化现象。激光清洗后,材料的硬度增加,并且随着激光功率、频率、能量密度的增加,硬度增幅逐渐减小。拉伸性能结果显示,激光清洗后的试样抗拉强度、屈服强度和延伸率较空白试样均略微下降。高周疲劳试验结果表明,与空白试样相比,激光清洗后的带漆试样的疲劳性能下降11.76%,这主要是激光清洗造成了表面粗糙度增加。经阳极氧化和喷漆处理后,激光清洗去漆不会进一步增加阳极氧化造成的疲劳损伤。

关键词：激光技术激光清洗航空铝合金热影响区力学性能疲劳性能

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改进硫化物沉淀法处理化学镀镍废水实验研究

环保科技 2024年第4期30卷 55-58页

作者：刘霄丁耀贵州省环境科学研究设计院贵阳550081 贵州省水污染控制与资源化技术研究重点实验室贵阳550081 贵州航天电器股份有限公司贵阳550025

化学镀镍废水中含有络合态的镍(Ⅱ)离子,其有效处理对化学镀镍企业废水达标排放至关重要。本研究采用改进硫化物沉淀法处理含有络合态镍(Ⅱ)离子的化学镀镍废水,考察硫化物投加量、助凝剂投加量以及废水最终pH等因素对处理效果的影响。... 详细信息

化学镀镍废水中含有络合态的镍(Ⅱ)离子,其有效处理对化学镀镍企业废水达标排放至关重要。本研究采用改进硫化物沉淀法处理含有络合态镍(Ⅱ)离子的化学镀镍废水,考察硫化物投加量、助凝剂投加量以及废水最终pH等因素对处理效果的影响。结果表明:在常温下Na_(2)S·9H_(2)O(质量浓度为10.0 g/L)投加量为4.8 mL/L,Al_(2)(SO_(4))_(3)·18H_(2)O(质量浓度为4 g/L)5.7 mL/L,废水最终pH为7.0时,出水中镍(Ⅱ)离子的质量浓度为0.27 mg/L,达到《电镀污染物排放标准》(GB 21900-2008)中表2限值(<0.5 mg/L)的要求。

关键词：重金属离子化学沉淀法达标排放

晋汾后记:林徽因、梁思成《晋汾古建筑预查纪略》研究

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建筑史学刊 2024年第3期5卷 37-53页

作者：党晟丁垚天津大学建筑学院

通过文献与田野调查,回顾1934年林徽因、梁思成晋汾古建筑调查的背景与历程,考证部分建筑遗址的位置,报告其遗构与遗物的现状,并对调查报告《晋汾古建筑预查纪略》的写作及学术意义进行简要探讨。

关键词：梁思成与林徽因田野调查汾河流域山西古建筑