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On Multiplicative Generators of n-Dimensional Overlap Functions 被引量:1
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作者 Hai Xie 《Applied Mathematics》 2020年第11期1061-1069,共9页
In this paper, inspired by the multiplicative generators of overlap functions, we mainly propose the concepts of multiplicative generator pairs of n-dimensional overlap functions, in order to extend the dimensionality... In this paper, inspired by the multiplicative generators of overlap functions, we mainly propose the concepts of multiplicative generator pairs of n-dimensional overlap functions, in order to extend the dimensionality of overlap functions from 2 to n. We present the condition under which the pair (g, h) can multiplicatively generate an n-dimensional overlap function O<sub>g,h</sub>. we focus on the homogeneity and idempotency property on multiplicatively generated n-dimensional overlap functions. 展开更多
关键词 n-dimensional overlap functions overlap functions Multiplicative Generators
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Innovative Aczel Alsina Group Overlap Functions for AI-Based Criminal Justice Policy Selection under Intuitionistic Fuzzy Set
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作者 Ikhtesham Ullah Muhammad Sajjad Ali Khan +3 位作者 Fawad Hussain Madad Khan Kamran Ioan-Lucian Popa 《Computer Modeling in Engineering & Sciences》 2025年第8期2123-2164,共42页
Multi-criteria decision-making(MCDM)is essential for handling complex decision problems under uncertainty,especially in fields such as criminal justice,healthcare,and environmental management.Traditional fuzzy MCDM te... Multi-criteria decision-making(MCDM)is essential for handling complex decision problems under uncertainty,especially in fields such as criminal justice,healthcare,and environmental management.Traditional fuzzy MCDM techniques have failed to deal with problems where uncertainty or vagueness is involved.To address this issue,we propose a novel framework that integrates group and overlap functions with Aczel-Alsina(AA)operational laws in the intuitionistic fuzzy set(IFS)environment.Overlap functions capture the degree to which two inputs share common features and are used to find how closely two values or criteria match in uncertain environments,while the Group functions are used to combine different expert opinions into a single collective result.This study introduces four new aggregation operators:Group Overlap function-based intuitionistic fuzzy Aczel-Alsina(GOF-IFAA)Weighted Averaging(GOF-IFAAWA)operator,intuitionistic fuzzy Aczel-Alsina(GOF-IFAA)Weighted Geometric(GOF-IFAAWG),intuitionistic fuzzy Aczel-Alsina(GOF-IFAA)OrderedWeighted Averaging(GOF-IFAAOWA),and intuitionistic fuzzy Aczel-Alsina(GOF-IFAA)Ordered Weighted Geometric(GOF-IFAAOWG),which are rigorously defined and mathematically analyzed and offer improved flexibility in managing overlapping,uncertain,and hesitant information.The properties of these operators are discussed in detail.Further,the effectiveness,validity,activeness,and ability to capture the uncertain information,the developed operators are applied to the AI-based Criminal Justice Policy Selection problem.At last,the comparison analysis between prior and proposed studies has been displayed,and then followed by the conclusion of the result. 展开更多
关键词 Fuzzy sets(FS) intuitionistic fuzzy set(IFS) group function(GF) overlap function(OF) aczel alsina(AA)operators multi-criteria decision making problem(MCDM)
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Multi-omics analysis reveals gut microbiota-metabolite interactions and their association with liver function in autoimmune overlap syndrome
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作者 Qi Wang Li-Na Sun +7 位作者 Han Shi Xin-Yue Ma Wen Gao Bin Xu Xiao Lin Yan-Min Liu Chun-Yang Huang Rong-Hua Jin 《World Journal of Gastroenterology》 2025年第25期26-44,共19页
BACKGROUND Autoimmune liver diseases,including primary biliary cholangitis(PBC),autoi-mmune hepatitis(AIH),and their overlap syndrome(OS),involve immune-mediated liver injury,with OS occurring in 1.2%-25%of PBC patien... BACKGROUND Autoimmune liver diseases,including primary biliary cholangitis(PBC),autoi-mmune hepatitis(AIH),and their overlap syndrome(OS),involve immune-mediated liver injury,with OS occurring in 1.2%-25%of PBC patients.OS carries a higher risk of cirrhosis,hepatocellular carcinoma,and reduced survival.While its pathogenesis remains unclear,gut microbiota dysbiosis and serum metabolite alterations may play key roles.This study uses 16S rRNA sequencing and liquid chromatography-mass spec-trometry(LC-MS)metabolomics to compare gut microbiota and serum metabolites among PBC,AIH,and OS patients,and explores their associations with liver function.AIM To differentiate OS from PBC and AIH based on gut microbiota,serum metabolites,and liver function.METHODS Gut microbiota profiles were analyzed using 16S rRNA sequencing,while untargeted serum metabolomics was conducted via LC-MS.Comparative analyses were performed to identify differences in microbial composition and serum metabolite levels among PBC,AIH,and OS groups.Correlation analyses and network visualization tech-niques were applied to elucidate the interactions among liver function parameters,gut microbiota,and serum metabolites in OS patients.RESULTS Compared to patients with PBC or AIH,OS patients demonstrated significantly reduced microbial diversity and richness.Notable taxonomic shifts included decreased abundances of Firmicutes,Bacteroidetes,and Actinobacteria,alongside increased levels of Proteobacteria and Verrucomicrobia.Distinct serum metabolites,such as pentadecanoic acid and aminoimidazole carboxamide ribonucleotide,were identified in OS patients.Correlation analysis revealed that aspartate aminotransferase(AST)levels were negatively associated with the bacterial genus Fusicatenibacter and the metabolite L-Tyrosine.A microbial-metabolite network diagram further confirmed a strong association between Fusicatenibacter and L-Tyrosine in OS patients.CONCLUSION OS patients show decreased gut microbiota diversity and unique serum metabolites.Multi-omics linked AST,Fusicatenibacter,and L-Tyrosine,revealing OS mechanisms and diagnostic potential. 展开更多
关键词 overlap syndrome Multi-omics Gut microbiomes METABOLITES Liver function
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Pseudo-Semi-Overlap Functions-Based Fuzzy Rough Sets Applied to Image Edge Extraction
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作者 Ran Yin Minge Chen +2 位作者 Yu Liu Yafei Zhao Jianwei Li 《Journal of Applied Mathematics and Physics》 2024年第7期2347-2366,共20页
As an extension of overlap functions, pseudo-semi-overlap functions are a crucial class of aggregation functions. Therefore, (I, PSO)-fuzzy rough sets are introduced, utilizing pseudo-semi-overlap functions, and furth... As an extension of overlap functions, pseudo-semi-overlap functions are a crucial class of aggregation functions. Therefore, (I, PSO)-fuzzy rough sets are introduced, utilizing pseudo-semi-overlap functions, and further extended for applications in image edge extraction. Firstly, a new clustering function, the pseudo-semi-overlap function, is introduced by eliminating the symmetry and right continuity present in the overlap function. The relaxed nature of this function enhances its applicability in image edge extraction. Secondly, the definitions of (I, PSO)-fuzzy rough sets are provided, using (I, PSO)-fuzzy rough sets, a pair of new fuzzy mathematical morphological operators (IPSOFMM operators) is proposed. Finally, by combining the fuzzy C-means algorithm and IPSOFMM operators, a novel image edge extraction algorithm (FCM-IPSO algorithm) is proposed and implemented. Compared to existing algorithms, the FCM-IPSO algorithm exhibits more image edges and a 73.81% decrease in the noise introduction rate. The outstanding performance of (I, PSO)-fuzzy rough sets in image edge extraction demonstrates their practical application value. 展开更多
关键词 Pseudo-Semi-overlap functions Fuzzy Rough Set Fuzzy Mathematical Morphology Image Edge Extraction
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The Additive Generators of <i>n</i>-Dimensional Overlap Functions
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作者 Hai Xie 《Journal of Applied Mathematics and Physics》 2021年第8期2159-2169,共11页
In this paper, we introduce the concepts of additive generators and additive generator pair of <em>n</em>-dimensional overlap functions, in order to extend the dimensionality of overlap functions from 2 to... In this paper, we introduce the concepts of additive generators and additive generator pair of <em>n</em>-dimensional overlap functions, in order to extend the dimensionality of overlap functions from 2 to <em>n</em>. We mainly discuss the conditions under which an <em>n</em>-dimensional overlap function can be expressed in terms of its generator pair. 展开更多
关键词 overlap functions n-Dimensional overlap functions Additive Generators Additive Generator Pair
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Constructions of <i>n</i>-Dimensional Overlap Functions Based on Bivariate Overlap Functions
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作者 Hai Xie 《Journal of Applied Mathematics and Physics》 2021年第11期2757-2764,共8页
In this paper, we firstly introduce some new results on overlap functions and <em>n</em>-dimensional overlap functions. On the other hand, in a previous study, Gómez <em>et al</em>. presen... In this paper, we firstly introduce some new results on overlap functions and <em>n</em>-dimensional overlap functions. On the other hand, in a previous study, Gómez <em>et al</em>. presented some open problems. One of these open problems is “to search the construction of <em>n</em>-dimensional overlapping functions based on bi-dimensional overlapping functions”. To answer this open problem, in this paper, we mainly introduce one construction method of <em>n</em>-dimensional overlap functions based on bivariate overlap functions. We mainly use the conjunction operator ∧ to construct <em>n</em>-dimensional overlap functions <img src="Edit_0e82dd84-0f25-4b14-8f26-ae9532b10190.bmp" alt="" /> based on bivariate overlap functions and study their basic properties. 展开更多
关键词 overlap functions n-Dimensional overlap functions Conjunction Operator
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Lipschitz Estimates for Commutators of N-dimensional Fractional Hardy Operators 被引量:8
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作者 ZHENG QING-YU Fu ZUN-WEI 《Communications in Mathematical Research》 CSCD 2009年第3期241-245,共5页
In this paper, it is proved that the commutator Hβ,b which is generated by the n-dimensional fractional Hardy operator Hβ and b ∈λα (R^n) is bounded from L^p(R^n) to L^q(R^n), where 0 〈 α 〈 1, 1 〈 p, q ... In this paper, it is proved that the commutator Hβ,b which is generated by the n-dimensional fractional Hardy operator Hβ and b ∈λα (R^n) is bounded from L^p(R^n) to L^q(R^n), where 0 〈 α 〈 1, 1 〈 p, q 〈 ∞ and 1/P - 1/q = (α+β)/n. Furthermore, the boundedness of Hβ,b on the homogenous Herz space Kq^α,p(R^n) is obtained. 展开更多
关键词 COMMUTATOR n-dimensional fractional Hardy operator Lipschitz function Herz space
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Management of Overlap Syndrome between Functional Dyspepsia and Irritable Bowel Syndrome by Western and Traditional Chinese Medicine
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作者 Fan Chen 《Yangtze Medicine》 2017年第2期117-126,共10页
The overlap syndrome of functional dyspepsia and irritable bowel syndrome (FD-IBS) is very common and difficult to treat. There are many risk factors of FD-IBS. Mental illness of FD-IBS patients is more serious. Funct... The overlap syndrome of functional dyspepsia and irritable bowel syndrome (FD-IBS) is very common and difficult to treat. There are many risk factors of FD-IBS. Mental illness of FD-IBS patients is more serious. Functional dyspepsia and irritable bowel syndrome have some similarities in the aspects of pathophysiology, pathogenesis, and treatment. We should pay attention to two aspects of the treatment of overlap syndrome, one is simplifying medications, the other is using gastrointestinal motility drug with bidirectional regulative function when necessary. Traditional Chinese medicine in this respect shows some advantages. This review addresses the epidemiology, risk factors, clinical features, pathogenesis and management of FD-IBS. 展开更多
关键词 functional DYSPEPSIA IRRITABLE BOWEL SYNDROME overlap SYNDROME
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Feasibility of Tiotropium Bromide Treatment in Patients with Asthma-COPD Overlap Syndrome and its Effect on Lung Function
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作者 Li Sheng 《Journal of Clinical and Nursing Research》 2023年第4期100-104,共5页
Objective:To explore the feasibility of tiotropium bromide therapy and its effect on the lung function of patients with asthma-COPD overlap syndrome(ACOS).Method:The 58 subjects selected in this study were all ACOS pa... Objective:To explore the feasibility of tiotropium bromide therapy and its effect on the lung function of patients with asthma-COPD overlap syndrome(ACOS).Method:The 58 subjects selected in this study were all ACOS patients admitted to our hospital(Hohhot First Hospital)from October 2020 to October 2022.They were grouped according to the random number table method and divided into a control group(29 cases)and an observation group(29 cases).The control group received routine treatment plus salmeterol-fluticasone powder inhalation treatment,and the observation group received tiotropium bromide treatment.The relevant indicators of the two groups were compared.Results:The total clinical effective rate of the observation group was significantly higher than that of the control group.Besides,the forced vital capacity(FVC),forced expiratory volume in 1 second(FEV1)levels,and ACT scores of the two groups increased after treatment,with the observation group having better results than the control group.The residual volume-total lung capacity ratio(RV/TLC),acute exacerbation frequency,and CAT scores all decreased,with the observation group showing smaller values than the control group.The difference between the results of both groups were significant(P<0.05)Conclusion:Tiotropium bromide has a significant clinical effect in the treatment of ACOS patients and can effectively improve the lung function of patients. 展开更多
关键词 Asthma-COPD overlap syndrome Tiotropium bromide Lung function FEASIBILITY
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Overlap吻合术式在腹腔镜结直肠手术重建中的临床研究
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作者 孙景毅 张涛 《全科医学临床与教育》 2024年第6期518-521,共4页
目的研究腹腔镜结直肠手术重建中运用侧侧吻合(Overlap)术式的临床价值。方法选择2022年1月至2023年2月期间龙游县人民医院收治的102例结直肠癌患者为研究对象,均行腹腔镜结直肠癌根治术,以吻合术式不同将其分为两组,其中行功能性端端... 目的研究腹腔镜结直肠手术重建中运用侧侧吻合(Overlap)术式的临床价值。方法选择2022年1月至2023年2月期间龙游县人民医院收治的102例结直肠癌患者为研究对象,均行腹腔镜结直肠癌根治术,以吻合术式不同将其分为两组,其中行功能性端端吻合为对照组(n=51),采用Overlap吻合术式则为观察组(n=51),比较两组患者的围术期指标、炎症指标以及术后并发症发生情况,术后随访12个月,评价两组患者生活质量。结果观察组患者的术后住院、进食、手术以及排气时间均短于对照组,差异均有统计学意义(t分别=5.26、3.49、3.43、3.55,P均<0.05);观察组术后3 d的C反应蛋白(CRP)、白细胞介素-6(IL-6)以及肿瘤坏死因子-α(TNF-α)水平均低于对照组,差异均有统计学意义(t分别=13.14、15.79、12.49,P均<0.05);观察组患者的并发症发生率明显低于对照组,差异有统计学意义(χ^(2)=15.86,P<0.05);两组3、6、9、12个月的生活质量评分比较,差异均无统计学意义(t分别=0.19、0.50、0.60、0.62,P均>0.05)。结论在腹腔镜结直肠癌根治术中,通过采用Overlap吻合术式,不仅可以缩短手术时间,恢复胃肠道功能,还可以减少术后并发症,并且对患者生活质量无明显影响,可以作为有效且安全的一种吻合方式。 展开更多
关键词 腹腔镜结直肠癌根治术 侧侧吻合 功能性端端吻合
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基于重叠和群组聚合算子的LR模糊数的扩张算术运算
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作者 张廷海 李文煌 易志洪 《江西师范大学学报(自然科学版)》 北大核心 2025年第4期337-343,共7页
LR模糊数是在模糊数中最常见的一类形式,因其可以通过左右扩张和左右形态函数分别表示不同的模糊组件而能够更真实和灵活地表示现实世界的模糊和不确定性.该文主要是通过两类在图像处理、模糊系统控制和决策等方面具有广泛应用的重叠和... LR模糊数是在模糊数中最常见的一类形式,因其可以通过左右扩张和左右形态函数分别表示不同的模糊组件而能够更真实和灵活地表示现实世界的模糊和不确定性.该文主要是通过两类在图像处理、模糊系统控制和决策等方面具有广泛应用的重叠和群组聚合算子对不同左右形态函数的作用提出了LR模糊数新的扩张算术运算,并重点研究了它们的一些基本运算性质.这极大地扩展和丰富了LR模糊数的构造方式,以适应在现实中各类不确定性场景的表达. 展开更多
关键词 模糊数 重叠函数 群组函数 隶属函数
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度普利尤单抗用于重度支气管哮喘-慢性阻塞性肺疾病重叠的疗效评价
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作者 季红华 纪王斐 朱麒霖 《中国药房》 北大核心 2025年第20期2571-2576,共6页
目的 探讨度普利尤单抗用于重度支气管哮喘-慢性阻塞性肺疾病重叠(ACO)的临床疗效与安全性。方法 回顾性收集2022年1月至2023年12月在南通市第三人民医院接受治疗的150例重度ACO患者的临床资料,按治疗方式的不同将其分为对照组[吸入型... 目的 探讨度普利尤单抗用于重度支气管哮喘-慢性阻塞性肺疾病重叠(ACO)的临床疗效与安全性。方法 回顾性收集2022年1月至2023年12月在南通市第三人民医院接受治疗的150例重度ACO患者的临床资料,按治疗方式的不同将其分为对照组[吸入型糖皮质激素(ICS)+长效β2受体激动剂(LABA)+长效抗胆碱能药(LAMA)常规治疗,90例]和观察组(常规治疗+度普利尤单抗,60例),按1.5∶1的比例进行倾向性评分匹配。比较两组患者治疗前及治疗后1、3、12个月时的症状控制评分[哮喘控制问卷(ACT)、慢性阻塞性肺疾病评估测试(CAT)评分]、肺功能指标[用力肺活量(FVC)、第1秒用力呼气容积(FEV_1)、第1秒用力呼气容积占预计值的百分比(FEV_1%pred)、FEV_1与FVC比值(FEV_1/FVC)、呼气峰流速(PEF)、最大中段呼气流速(MMEF)],以及治疗前及治疗后12个月时的生物标志物[外周血嗜酸性粒细胞(EOS)计数、免疫球蛋白E(IgE)、C反应蛋白(CRP)、呼出气一氧化氮(FeNO)]水平、年度急性加重次数、生活质量评分[哮喘生活质量问卷(AQLQ)、圣乔治呼吸问卷(SGRQ)、简明医学研究健康调查表(SF-36)评分],以及不良反应发生情况。结果 匹配后,共纳入患者120例,其中对照组72例、观察组48例。与治疗前比较,两组患者治疗后1、3、12个月时的ACT评分,治疗后3、12个月时的FVC、FEV_1、FEV_1%pred(对照组治疗后3个月除外)、FEV_1/FVC(对照组治疗后3个月除外)、PEF(对照组治疗后3、12个月除外)、MMEF(还包括观察组治疗后1个月),以及治疗后12个月时的AQLQ、SF-36评分均显著升高(P<0.05);两组患者治疗后1、3、12个月时CAT评分,治疗后12个月时的年度急性加重次数和SGRQ评分,对照组患者治疗后12个月时的FeNO水平,以及观察组患者治疗后12个月时的EOS计数和IgE、CRP、FeNO水平均显著降低(P<0.05);且观察组上述指标的改善大多优于同期对照组(P<0.05)。两组患者总不良反应发生率比较,差异无统计学意义(P>0.05)。结论 与常规治疗方案相比,加用度普利尤单抗在改善重度ACO患者临床症状、肺功能、生活质量和降低相关生物标志物水平方面的效果更优,且安全性与常规治疗方案相当。 展开更多
关键词 度普利尤单抗 支气管哮喘-慢性阻塞性肺疾病重叠 疗效 安全性 肺功能 生活质量
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2型糖尿病肾病患者血清lncRNA MEG3,lncRNA SOX2OT水平表达与肾功能及预后的相关性研究
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作者 鲍楠 张蓬杰 +1 位作者 朱燕亭 闻苗苗 《现代检验医学杂志》 2025年第3期84-90,共7页
目的探讨2型糖尿病肾病(T2DN)患者血清长链非编码RNA母系表达基因3(lncRNA MEG3),长链非编码RNA SRY盒转录因子2重叠转录本(lncRNA SOX2OT)水平表达与肾功能及预后的相关性。方法选取2019年1月~2021年1月陕西省人民医院收治的T2DN患者20... 目的探讨2型糖尿病肾病(T2DN)患者血清长链非编码RNA母系表达基因3(lncRNA MEG3),长链非编码RNA SRY盒转录因子2重叠转录本(lncRNA SOX2OT)水平表达与肾功能及预后的相关性。方法选取2019年1月~2021年1月陕西省人民医院收治的T2DN患者205例(T2DN组),单纯2型糖尿病(T2DM)患者150例(T2DM组)和体检健康者150例(对照组),根据三年预后将T2DN患者分为不良预后组(n=73)和良好预后组(n=132)。检测血清lncRNA MEG3和lncRNA SOX2OT水平;相关性分析采用Pearson分析法;影响因素采用Logistic回归分析;受试者工作特征(ROC)曲线评价预测价值。结果T2DN组血清lncRNA MEG3(2.20±0.32)高于T2DM组(1.49±0.20)和对照组(1.00±0.06),lncRNA SOX2OT(0.50±0.11)低于T2DM组(0.73±0.15)和对照组(1.05±0.16),差异具有统计学意义(t=23.960,45.332;28.745,16.670,均P<0.01)。T2DN患者血清lncRNA MEG3水平与估计肾小球滤过率(eGFR)呈负相关,与尿清蛋白/肌酐比值(UACR)水平呈正相关(r=-0.532,0.485,均P<0.01);血清lncRNA SOX2OT水平与eGFR呈正相关,与UACR呈负相关(r=0.421,-0.517,均P<0.01)。T2DN患者不良预后的危险因素为慢性肾脏病分期4期、UACR和lncRNA MEG3(Waldχ^(2)=6.360,6.678,16.652,均P<0.05),保护因素为eGFR,lncRNA SOX2OT(Waldχ^(2)=5.463,11.797,均P<0.05)。血清lncRNA MEG3联合lncRNA SOX2OT预测的曲线下面积高于lncRNA MEG3,lncRNA SOX2OT单独预测,差异具有统计学意义(Z=3.841,3.337,均P<0.05)。结论血清lncRNA MEG3水平升高和lncRNA SOX2OT水平降低与T2DN患者肾功能降低及不良预后有关,两者联合检测对T2DN患者不良预后有较高预测价值。 展开更多
关键词 2型糖尿病肾病 长链非编码RNA母系表达基因3 长链非编码RNA SRY盒转录因子2重叠转录本 肾功能
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组合式呼吸康复训练联合布地奈德福莫特罗粉吸入剂在哮喘-慢阻肺重叠综合征中的临床应用
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作者 刘东华 王庆春 王望春 《四川生理科学杂志》 2025年第9期1934-1936,1945,共4页
目的:探讨组合式呼吸康复训练联合布地奈德福莫特罗粉吸入剂在哮喘-慢阻肺重叠综合征(ACOS)中的临床应用效果。方法:选取2024年5月~2025年2月我院收治的70例ACOS患者,采用随机数字表法将其分为吸入剂组(n=35,予以布地奈德福莫特罗吸入... 目的:探讨组合式呼吸康复训练联合布地奈德福莫特罗粉吸入剂在哮喘-慢阻肺重叠综合征(ACOS)中的临床应用效果。方法:选取2024年5月~2025年2月我院收治的70例ACOS患者,采用随机数字表法将其分为吸入剂组(n=35,予以布地奈德福莫特罗吸入剂治疗)和康复训练联合组(n=35,在吸入剂组基础上实施组合式呼吸康复训练),治疗结束后,比较两组临床疗效、肺功能指标、炎症因子、血气指标、呼出气一氧化氮(FeNO)、生活质量及不良反应发生情况。结果:康复训练联合组总有效率(94.29%)明显高于吸入剂组(77.14%)(P<0.05)。治疗后,两组用力肺活量(FVC)、第一秒用力呼气容积(FEV_(1))、动脉血氧分压(PaO_(2))、血氧饱和度(SaO_(2))均明显升高(P<0.05),肿瘤坏死因子α(TNF-α)、白介素6(IL-6)、FeNO及慢性阻塞性肺疾病评估测试(CAT)评分均明显降低(P<0.05),且两组间上述指标差异均显著(P<0.05)。结论:在ACOS中应用组合式呼吸康复训练联合布地奈德福莫特罗粉吸入剂效果显著,可有效改善患者肺功能和血气指标,减轻炎症反应,促使生活质量得到明显提升,值得推广使用。 展开更多
关键词 组合式呼吸康复训练 哮喘-慢阻肺重叠综合征 布地奈德福莫特罗粉吸入剂 肺功能 生活质量 应用效果
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X射线光电子能谱(XPS)谱图的分峰拟合 被引量:1
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作者 吴璇 吴正龙 《中国无机分析化学》 北大核心 2025年第1期64-72,共9页
X射线光电子能谱(XPS)分峰拟合是数据结果后处理的常用技术,实际工作中,缺乏XPS分析工作经验的使用者对分峰拟合结果不确定性大。为尽量提高结果的确定度,XPS分峰处理时,需要对样品采集的XPS谱峰进行必要的分析判断、选择正确拟合模型... X射线光电子能谱(XPS)分峰拟合是数据结果后处理的常用技术,实际工作中,缺乏XPS分析工作经验的使用者对分峰拟合结果不确定性大。为尽量提高结果的确定度,XPS分峰处理时,需要对样品采集的XPS谱峰进行必要的分析判断、选择正确拟合模型、合理的参量值或范围、选用适当的谱峰背景扣除方法等。在简述分峰拟合基本理论的基础上,通过列举O 1s的自重叠、C 1s与Ru 3d相互重叠、N 1s与GaLM俄歇峰群重叠的分峰典型案例,由浅入深,分析评估了拟合参量对拟合结果的影响,探索分峰拟合技术,努力提高XPS分峰结果确定性。 展开更多
关键词 X射线光电子能谱(XPS) 谱峰重叠 分峰拟合 Voigt函数
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PTB-YOLOv8s:轻量级离散分布安全装备检测的方法
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作者 张杨 张雪琴 《兵工自动化》 北大核心 2025年第4期37-43,共7页
针对电力人工巡检维修工作中,安全帽和高空作业安全带等关键安全装备合规使用的监测效率低等问题,提出一种基于YOLOv8s的检测模型,旨在降低人工成本,提升检测效率。通过设计C2f_PTB特征提取模块,结合Transformer的全局信息捕获和卷积神... 针对电力人工巡检维修工作中,安全帽和高空作业安全带等关键安全装备合规使用的监测效率低等问题,提出一种基于YOLOv8s的检测模型,旨在降低人工成本,提升检测效率。通过设计C2f_PTB特征提取模块,结合Transformer的全局信息捕获和卷积神经网络的局部特征提取能力,提升模型对小尺寸和分散目标的检测效率;引入标准化高斯瓦瑟斯坦距离(normalized Gaussian Wasserstein distance,NGWD)损失函数,增强模型对微小安全装备检测的稳定性与准确性;设计基于StarNet的轻量化主干网络C2f_star模块,降低网络参数。实验结果表明,改进后的模型在电力安全装备数据集上的mAP达到93.7%,相比基准模型检测精度提升5.6%,检测速度提升10帧/秒,证明所提出的方法能够有效提升检测效果。 展开更多
关键词 电力安全 安全装备检测 目标重叠 特征融合 TRANSFORMER 损失函数 主干轻量化
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具有连续基础算子的一致模对重叠函数(分组函数)的分配性
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作者 章捷琼 谢爱芳 《江西师范大学学报(自然科学版)》 北大核心 2025年第4期331-336,共6页
该文讨论了具有连续基础算子的一致模对重叠函数(分组函数)的分配性,着重研究具有严格基础算子的一致模对重叠函数的分配性,所获得的结论与Qiao Junsheng得到的结论一起完善了具有连续阿基米德基础算子的一致模对重叠函数的分配性研究.... 该文讨论了具有连续基础算子的一致模对重叠函数(分组函数)的分配性,着重研究具有严格基础算子的一致模对重叠函数的分配性,所获得的结论与Qiao Junsheng得到的结论一起完善了具有连续阿基米德基础算子的一致模对重叠函数的分配性研究.此外,在一个基础算子是连续阿基米德、另一个基础算子是取小三角模(取大三角余模)的条件下,该文研究了这样的一致模对重叠函数的分配性. 展开更多
关键词 一致模 重叠函数 分组函数 分配性方程
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陕西省蒲城县胶辽官话方言岛的重叠式——兼论方言接触问题
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作者 赵婷婷 《新疆大学学报(哲学社会科学版)》 北大核心 2025年第4期164-172,共9页
文章在简要论述方言岛主要理据的基础上,描写蒲城县胶辽官话方言岛重叠式构成形式、语义特征和语法功能,探讨关中话对方言岛重叠式的影响以及方言接触问题。研究表明,在源方言基础上,通过直接借用或复制关中话的语素、词和结构模式,方言... 文章在简要论述方言岛主要理据的基础上,描写蒲城县胶辽官话方言岛重叠式构成形式、语义特征和语法功能,探讨关中话对方言岛重叠式的影响以及方言接触问题。研究表明,在源方言基础上,通过直接借用或复制关中话的语素、词和结构模式,方言岛AAB重叠式数量增多。名词小称以源方言儿化形式为主,吸收了关中话的重叠手段,在“A儿”基础上形成了“AA儿”重叠式。表程度加深时,除使用源方言的形容词语素重叠式,方言岛还吸收了关中话“很”“太”重叠作补语的结构。方言岛重叠式中的关中方言特征体现了方言接触诱发的语言变异过程,双重语言认同进一步强化了方言岛作为不同于源方言和关中方言独特变体的地位。 展开更多
关键词 胶辽官话方言岛 重叠式 语义特征 语法功能 方言接触
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融合GAT网络的层级标注实体关系联合抽取方法
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作者 蔡阿雨 黄洁 张克 《计算机工程与设计》 北大核心 2025年第5期1378-1386,共9页
为解决实体关系抽取任务中的关系重叠问题,提出一种融合图注意力网络(graph attention networks, GAT)的层级标注联合抽取方法。将关系和词建模为图结构上的节点,通过GAT的“消息传递”机制实现两类语义节点信息传递、融合与更新,实现... 为解决实体关系抽取任务中的关系重叠问题,提出一种融合图注意力网络(graph attention networks, GAT)的层级标注联合抽取方法。将关系和词建模为图结构上的节点,通过GAT的“消息传递”机制实现两类语义节点信息传递、融合与更新,实现两类节点间的完整信息交互,在标注阶段,采用层级标注策略,解决关系重叠问题,使用Focal Loss损失函数对模型进行训练,缓解标注阶段数据不均衡的问题。实验结果表明,该方法具有良好的性能,能够高效抽取出重叠关系三元组。 展开更多
关键词 联合抽取 关系重叠 图结构 图注意力网络 层级标注 消息传递 损失函数
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一种降低开关磁阻电机转矩脉动的新型转矩分配函数控制策略
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作者 黄朝志 肖勇 +1 位作者 肖任全 龚成懿 《科学技术与工程》 北大核心 2025年第10期4136-4144,共9页
由于开关磁阻电机特殊的双凸极结构,导致其在运行过程中会存在较大的转矩脉动,为降低换相期间的峰值电流和转矩脉动,提出了一种新型转矩分配函数(torque sharing function,TSF)控制方法。首先,考虑转矩与电感之间的关系,以电感边界点将... 由于开关磁阻电机特殊的双凸极结构,导致其在运行过程中会存在较大的转矩脉动,为降低换相期间的峰值电流和转矩脉动,提出了一种新型转矩分配函数(torque sharing function,TSF)控制方法。首先,考虑转矩与电感之间的关系,以电感边界点将交换区分为两个子区间,并在不同的区间设计了不同的TSF曲线。其次,随着电机的转速和负载增加,固定的重叠角会降低电机的效率,提出了一种在线重叠角优化控制策略。最后,通过仿真和实验结果表明,与传统立方型转矩分配函数相比,在负载为5 N·m,转速分别为500 r/min、1000 r/min下,本文方法的转矩脉动和电流峰值分别降低了3.6%、12%和1.1 A、3.2 A。所提方法能够有效地减小转矩脉动和电流峰值。 展开更多
关键词 开关磁阻电机 转矩分配函数 转矩脉动抑制 峰值电流 区间分段 重叠角优化
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