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基于G-S混合编码的分布式单模光纤测温方法研究
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作者 李昭旭 王宇 +3 位作者 郭欣明 刘昕 白清 靳宝全 《电子测量与仪器学报》 北大核心 2025年第1期244-252,共9页
为了减少分布式单模光纤温度传感系统的测温误差,文中提出了一种基于Golay-Simplex混合编码的单模光纤温度测量方法。首先将4路G码进行S码变换实现了12路G-S混合编码调制,再依次对12路编码输出信号进行S码解码处理与G码解码处理,并采用... 为了减少分布式单模光纤温度传感系统的测温误差,文中提出了一种基于Golay-Simplex混合编码的单模光纤温度测量方法。首先将4路G码进行S码变换实现了12路G-S混合编码调制,再依次对12路编码输出信号进行S码解码处理与G码解码处理,并采用累加平均与小波变换进行了测温曲线降噪,验证了G-S混合编码的编码增益为G码与S码的编码增益乘积。对比实验结果表明,在30 km单模光纤长度、50 ns脉宽与64 bit编码长度的条件下,G-S混合编码测温系统的反斯托克斯信号幅值曲线波动范围较小,且在整个光纤长度内信噪比较大,信噪比高于Golay码编码测温系统和单脉冲测温系统。G-S混合编码的稳态测温误差可从单脉冲系统的±7.3℃优化至±2.5℃,优于Golay编码分布式拉曼光纤测温系统的测温误差±3.9℃。而空间分辨率可保持为5 m,证明了G-S混合编码在长距离单模光纤测温方面的有效性,有望为水利大坝渗漏温变等基础设施状态的融合感知提供有效的技术解决方案。 展开更多
关键词 光纤温度传感 拉曼光时域反射 脉冲编码 g-s混合编码 测温误差
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非Lipschitz条件下G-Brown运动驱动的随机微分方程的数值解
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作者 梁飞 张丽洁 《山东大学学报(理学版)》 北大核心 2026年第2期10-19,25,共11页
针对满足非Lipschitz条件的由G-Brown运动驱动的随机微分方程,运用Euler方法构造出方程的数值解,并证明Euler数值解在均方意义下收敛于解析解。最后通过一个例子验证方法的有效性。
关键词 随机微分方程 g-布朗运动 非LIPSCHITZ条件 EULER方法
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Research on the Impact of Conception Vessel Dredging Therapy Based on the Theory of Shifting Essence and Changing Qi in Inner Canon of Huangdi on Physical and Mental Health
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作者 Yizhou Shen Fengrun Liu 《Journal of Clinical and Nursing Research》 2025年第5期152-158,共7页
This study,based on the theory of shifting essence and changing Qi in Inner Canon of Huangdi,deeply explores the theoretical basis,operation method of Conception Vessel Dredging Therapy and its influence on human heal... This study,based on the theory of shifting essence and changing Qi in Inner Canon of Huangdi,deeply explores the theoretical basis,operation method of Conception Vessel Dredging Therapy and its influence on human health.Through case analysis and the statistical analysis of medical records during the pandemic,it reveals the remarkable effects of this method in regulating the endocrine system,improving metabolism,and relieving physical and mental diseases.It provides a theoretical and practical basis for the application of traditional Chinese medicine anti-aging therapy in the modern health field,and helps to explore new ways to delay aging and improve physical and mental health. 展开更多
关键词 Shifting essence and changing Qi conception vessel dredging therapy Inner canon of Huangdi Endocrine regulation Metabolic improvement Anti-aging Mental health
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人工智能如何更好地促进人类文明发展?——从Image、Concept到Sign的重大跨越
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作者 许晓东 《长沙理工大学学报(社会科学版)》 2026年第2期47-56,共10页
人工智能的爆发式发展本质是现代启蒙理性的极致延伸,其技术演进遵循Image、Concept、Sign的分化逻辑。文章以《启蒙辩证法》为核心理论工具,紧扣理性与权力相互渗透、启蒙双重视角、文明三阶段等核心观点,系统分析人工智能从数据图像... 人工智能的爆发式发展本质是现代启蒙理性的极致延伸,其技术演进遵循Image、Concept、Sign的分化逻辑。文章以《启蒙辩证法》为核心理论工具,紧扣理性与权力相互渗透、启蒙双重视角、文明三阶段等核心观点,系统分析人工智能从数据图像的抽象化、算法概念的工具化,到符号体系的支配化的跨越演进过程。人工智能的发展潜力,既源于启蒙理性对世界的祛魅与重构能力,也内含启蒙自我消解的风险。工具理性的单向强化、权力对技术的裹挟导致图像与符号的彻底分离,技术理性沦为新的支配性意识形态。只有回归《启蒙辩证法》的批判维度,重构理性的双重内涵、消解符号对现实的异化、解构技术权力的垄断格局,才能让人工智能摆脱技术极权主义风险,成为服务人类文明的积极力量。 展开更多
关键词 人工智能 《启蒙辩证法》 Image—concept—Sign 工具理性 技术批判
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Exploration and Practical Research on the Construction Model of the Emergency Care System Based on the Concept of“Linkage”
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作者 Yan Li 《Journal of Clinical and Nursing Research》 2026年第1期138-144,共7页
Against the backdrop of continuous social development and growing public health demands,the efficiency and scientific nature of the emergency care system are of paramount importance.This paper focuses on researching t... Against the backdrop of continuous social development and growing public health demands,the efficiency and scientific nature of the emergency care system are of paramount importance.This paper focuses on researching the construction of an emergency care system based on the concept of“linkage”,delving into its theoretical foundations,exploring innovative construction models,and analyzing practical cases.The study indicates that an emergency care system under the“linkage”concept can effectively integrate resources and enhance efficiency,providing new insights for improving the construction of the emergency care system.It aims to promote the development of the emergency care system towards a more scientific,efficient,and collaborative direction. 展开更多
关键词 Linkage concept Emergency care system Construction model Practical cases
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Proposal,Promotion,and Practice and Application of Damage Control Surgery Concept in Trauma Treatment at Grassroots Hospitals
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作者 Jingcheng Chen Yongzhan Chen Jing Xu 《Journal of Clinical and Nursing Research》 2026年第1期366-372,共7页
The concept of Damage Control Surgery(DCS)emphasizes prioritizing hemorrhage control,preventing hypothermia,correcting coagulopathy,and acidosis in trauma treatment.The application of the DCS concept in trauma treatme... The concept of Damage Control Surgery(DCS)emphasizes prioritizing hemorrhage control,preventing hypothermia,correcting coagulopathy,and acidosis in trauma treatment.The application of the DCS concept in trauma treatment at grassroots hospitals faces numerous challenges such as limited resources,high technical difficulty,and insufficient multidisciplinary collaboration.Therefore,DCS strategies need to be adapted to simplified processes to create conditions for subsequent treatment.This paper retrieves relevant literature to discuss the proposal,promotion,and application of the DCS concept,aiming to provide evidence-based basis for optimizing trauma treatment outcomes at grassroots hospitals. 展开更多
关键词 Damage control surgery concept promotion Grassroots hospitals Trauma treatment
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A conceptual analysis of reflective supervision for creating a positive intensive care practice environment
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作者 Mpho Grace Chipu 《International Journal of Nursing Sciences》 2026年第1期88-95,共8页
Objectives This study aimed to explore and clarify the concept of reflective supervision as a professional self-care strategy to create a positive Intensive Care Unit(ICU)practice environment.Methods Walker and Avant... Objectives This study aimed to explore and clarify the concept of reflective supervision as a professional self-care strategy to create a positive Intensive Care Unit(ICU)practice environment.Methods Walker and Avant’s eight-step concept analysis approach was utilized to identify and define the attributes,antecedents,and consequences of reflective supervision in the ICU.An extensive literature search was conducted across various databases,including Google Scholar,CINAHL,PubMed.Articles published from 2005 to 2025 were identified.We followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses(PRISMA)2020 statement to indicate the included articles and extract related data based on relevance.Results Forty articles were included in the analysis.The identified attributes included the supervisor-supervisee relationship,effective communication,teamwork,collaborations,reflection,competencies,feedback,continuous support,and autonomous choice.The identified antecedents included participation,supportive supervision,flexibility,open-door policy,training,and motivation.Consequences impacting the success of reflective supervision were identified as promotion of resiliency,autonomy,work-life balance,self-awareness,increased self-esteem,professional development,critical thinking,increased job satisfaction,and enhanced commitment.Conclusions Reflective supervision is a complex professional self-care strategy that enhances ICU practice,by promoting nurses’well-being,self-awareness,therapeutic skills,and professional development. 展开更多
关键词 concept analysis Intensive Care Unit NURSING Positive environment Reflective supervision
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DriftXMiner: A Resilient Process Intelligence Approach for Safe and Transparent Detection of Incremental Concept Drift in Process Mining
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作者 Puneetha B.H Manoj Kumar M.V +1 位作者 Prashanth B.S. Piyush Kumar Pareek 《Computers, Materials & Continua》 2026年第1期1086-1118,共33页
Processes supported by process-aware information systems are subject to continuous and often subtle changes due to evolving operational,organizational,or regulatory factors.These changes,referred to as incremental con... Processes supported by process-aware information systems are subject to continuous and often subtle changes due to evolving operational,organizational,or regulatory factors.These changes,referred to as incremental concept drift,gradually alter the behavior or structure of processes,making their detection and localization a challenging task.Traditional process mining techniques frequently assume process stationarity and are limited in their ability to detect such drift,particularly from a control-flow perspective.The objective of this research is to develop an interpretable and robust framework capable of detecting and localizing incremental concept drift in event logs,with a specific emphasis on the structural evolution of control-flow semantics in processes.We propose DriftXMiner,a control-flow-aware hybrid framework that combines statistical,machine learning,and process model analysis techniques.The approach comprises three key components:(1)Cumulative Drift Scanner that tracks directional statistical deviations to detect early drift signals;(2)a Temporal Clustering and Drift-Aware Forest Ensemble(DAFE)to capture distributional and classification-level changes in process behavior;and(3)Petri net-based process model reconstruction,which enables the precise localization of structural drift using transition deviation metrics and replay fitness scores.Experimental validation on the BPI Challenge 2017 event log demonstrates that DriftXMiner effectively identifies and localizes gradual and incremental process drift over time.The framework achieves a detection accuracy of 92.5%,a localization precision of 90.3%,and an F1-score of 0.91,outperforming competitive baselines such as CUSUM+Histograms and ADWIN+Alpha Miner.Visual analyses further confirm that identified drift points align with transitions in control-flow models and behavioral cluster structures.DriftXMiner offers a novel and interpretable solution for incremental concept drift detection and localization in dynamic,process-aware systems.By integrating statistical signal accumulation,temporal behavior profiling,and structural process mining,the framework enables finegrained drift explanation and supports adaptive process intelligence in evolving environments.Its modular architecture supports extension to streaming data and real-time monitoring contexts. 展开更多
关键词 Process mining concept drift gradual drift incremental drift clustering ensemble techniques process model event log
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基于滚环扩增技术的外周血G-四链体检测方法的建立及其在ATRX突变型胶质瘤诊断中的应用研究
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作者 杨华 陈姝雨 +1 位作者 刘秀萍 王宇翔 《复旦学报(医学版)》 北大核心 2026年第2期202-210,216,共10页
目的开发一种基于滚环扩增(rolling circle amplification,RCA)技术的高灵敏度外周血G-四链体(guanine quadruplex,G4)检测方法,建立ATRX突变型脑胶质瘤的无创分子诊断体系,为临床早期筛查提供新型液体活检策略。方法采用shRNA慢病毒感... 目的开发一种基于滚环扩增(rolling circle amplification,RCA)技术的高灵敏度外周血G-四链体(guanine quadruplex,G4)检测方法,建立ATRX突变型脑胶质瘤的无创分子诊断体系,为临床早期筛查提供新型液体活检策略。方法采用shRNA慢病毒感染技术建立ATRX稳定敲低的原代脑胶质瘤细胞株(ATRX KD),通过硫黄素T(thioflavin T,ThT)荧光光谱法检测细胞上清液中G4的形成水平。构建ATRX敲低的原位脑胶质瘤小鼠模型,采用RCA变温扩增技术检测模型组与对照组外周血循环游离DNA(cfDNA)中G4的丰度,并对RCA变温扩增技术的程序进行优化。收集临床确诊的ATRX突变型和野生型胶质瘤患者,以及健康志愿者的血清样本,提取cfDNA后采用优化的RCA方案进行G4定量检测,并再次对检测程序进行优化。结果体外实验显示,ATRX敲低可显著促进G4结构的形成,ATRX KD组细胞上清液中ThT荧光强度较野生型显著增加。建立RCA变温扩增方案检测ATRX突变型胶质瘤小鼠模型外周血cfDNA中G4结构的实验条件:以50 ng cfDNA为起始模板、进行10个循环扩增。临床样本验证显示,优化后的RCA变温扩增方案较传统恒温扩增效率提升,能够有效区分ATRX突变型与野生型胶质瘤患者及健康人群。结论成功建立了基于RCA变温扩增的外周血G4高灵敏度检测方案,该技术首次实现ATRX突变状态的液体活检分子分型,为胶质瘤早期筛查提供具有临床应用前景的无创诊断方法。 展开更多
关键词 ATRX基因突变 胶质瘤 循环游离DNA(cfDNA) g-四链体(G4) 滚环扩增(RCA) 液体活检
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SCAN:Structural Clustering with Adaptive Thresholds for Intelligent and Robust Android Malware Detection under Concept Drift
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作者 Kyoungmin Roh Seungmin Lee +2 位作者 Seong-je Cho Youngsup Hwang Dongjae Kim 《Computer Modeling in Engineering & Sciences》 2026年第3期1124-1163,共40页
Many machine learning-based Android malware detection often suffers from concept drift,where models trained on historical data fail to generalize to evolving threats.This paper proposes SCAN(Structural Clustering with... Many machine learning-based Android malware detection often suffers from concept drift,where models trained on historical data fail to generalize to evolving threats.This paper proposes SCAN(Structural Clustering with Adaptive thresholds for iNtelligent Android malware detection),a hybrid intelligent framework designed to mitigate concept drift without retraining.SCAN integrates Gaussian Mixture Models(GMMs)-based clustering with cluster-wise adaptive thresholding and supervised classifiers tailored to each cluster.A key challenge in clusteringbased malware detection is cluster-wise class imbalance,where clusters contain disproportionate distributions of benign and malicious samples.SCAN addresses this issue through adaptive thresholding,which dynamically adjusts the decision boundary of each cluster according to its malicious-to-benign ratio.In the final training stage,four supervised learning algorithms—Random Forest(RF),Support Vector Machine(SVM),k-NN,and XGBoost—are applied within the GMM-defined clusters.We train SCAN on Android applications collected from 2014-2017 and test it with applications from 2018-2023.Experimental results demonstrate that SCAN combined with RF consistently achieves superior performance,with both average accuracy and average F1-score exceeding 91%.These findings confirm SCAN’s robustness to concept drift and highlight its potential as a sustainable and intelligent solution for long-term Android malware detection in the real world. 展开更多
关键词 Android malware detection concept drift intelligent hybrid framework gaussian mixture model(GMM) class imbalance adaptive thresholding
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ZGM95G-ⅡA型中速磨煤机圆柱形转子式煤粉分离器设计与应用
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作者 许海家 《凿岩机械气动工具》 2026年第3期58-60,共3页
ZGM95G-ⅡA型中速磨煤机作为发电厂关键辅机,其配套分离器的分离效率与运行可靠性直接影响锅炉燃烧效率和机组能耗。针对现有分离器存在的空间狭小、分离效率低、轴承故障率高、皮带传动可靠性差等问题,提出圆柱形转子式煤粉分离器创新... ZGM95G-ⅡA型中速磨煤机作为发电厂关键辅机,其配套分离器的分离效率与运行可靠性直接影响锅炉燃烧效率和机组能耗。针对现有分离器存在的空间狭小、分离效率低、轴承故障率高、皮带传动可靠性差等问题,提出圆柱形转子式煤粉分离器创新设计方案。优化转子形状、叶片角度及间距,将传动方式改良为减速机齿轮传动,以实现降低通风阻力、提升分离精准度、减少设备故障次数的目标。应用结果表明,该创新设计可提高煤粉细度与均匀性,降低磨煤机能耗和维护成本,为电厂节能减排与提质增效提供有效的技术支撑。 展开更多
关键词 ZGM95g-ⅡA型中速磨煤机 圆柱形转子 煤粉分离器 齿轮传动 节能减排
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G-S理念下运动训练专业人才培养模式研究——以北方高校为例 被引量:10
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作者 吕吉勇 王丹丹 +2 位作者 蒋湘之 陈伟光 姜昂 《广州体育学院学报》 北大核心 2020年第5期101-105,共5页
当前我国冰雪体育运动发展迅速,冰雪体育方面专业人才的培养也备受关注。三阶段六方向雪花式运动训练专业人才培养模式以当代冰雪体育人才需求为背景,以2018版《高等学校体育类本科专业教学质量国家标准》为坐标,根据G-S理念设计形成。... 当前我国冰雪体育运动发展迅速,冰雪体育方面专业人才的培养也备受关注。三阶段六方向雪花式运动训练专业人才培养模式以当代冰雪体育人才需求为背景,以2018版《高等学校体育类本科专业教学质量国家标准》为坐标,根据G-S理念设计形成。该模式将运动训练专业人才培养三阶段分为基本能力培养阶段、专业能力培养阶段和职业能力培养阶段;在课程设置方面,提出北方高校运动训练专业学生冬季-夏季运动项目双(项)专项课或三(项)专修课(夏季专项、冰上项目专项、学生项目专项)课程设置方向及冰雪体育通才与冰雪体育专才培养的课程设置方案。 展开更多
关键词 g-s理念 北方高校 运动训练专业 人才培养模式 雪花式课程设置
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Application of Aesthetic Value of the World Modern Garden City and Exploration & Design of Its Artistic Conception——Using Chengdu City as a Case Study 被引量:1
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作者 孙大江 陈其兵 +2 位作者 胡庭兴 刘光立 孙大远 《Journal of Landscape Research》 2011年第1期1-3,6,共4页
This study explored the origin and development of modern garden city,by integrating concepts of world modern garden city and characteristics of Chengdu cultures,analyzed the application of its aesthetic value and the ... This study explored the origin and development of modern garden city,by integrating concepts of world modern garden city and characteristics of Chengdu cultures,analyzed the application of its aesthetic value and the design of its artistic conception.It was found that Chengdu City had high aesthetic value such as a large area of green spaces and unique recreational cultures,as well as a great potential of unifying idyllic images and natural cultures.To design Chengdu into a world modern garden city,the planning of its urban green space system should be taken as the foundation,"one group and three districts" as the construction system,urban folk cultures,logistics and traffic,information and other such networks as the support to achieve the "beauty of nature,social equity and urban-rural integration". 展开更多
关键词 GARDEN city AESTHETICS ARTISTIC conception DESIGN
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Effect of electroacupuncture at conception vessel and governor vessel on correlative signals of stress-injury-repair in cerebral ischemia reperfusion rats 被引量:8
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作者 邓容 皮敏 +2 位作者 杨卓欣 林婉珊 于海波 《World Journal of Acupuncture-Moxibustion》 CSCD 2016年第3期22-30,共9页
Objective To explore the effect of electroacupuncture at conception vessel and governor vessel on correlative signals of inflammatory response stressinjury-repair in cerebral ischemia reperfusion rats. Methods A total... Objective To explore the effect of electroacupuncture at conception vessel and governor vessel on correlative signals of inflammatory response stressinjury-repair in cerebral ischemia reperfusion rats. Methods A total of 216 rats were included in the experiment, of which 192 rats were randomly divided into four groups, including sham operation group(group A), model group(group B), governor vessel group(group C), and conception vessel and governor vessel group(group D), 48 rats in each group. The rats in each group were further divided into six sub-groups, including 12 h group, 24 h group, 48 h group, 72 h group, 96 h group and 144 h group. MCAO operation course was simulated in group A, and the common carotid artery, internal carotid artery and external carotid artery on the right side were exposed, without insertion of suture or treatment. After completion of modeling in group B, treatment was not conducted. After completion of modeling in group C, "Shuǐgōu(水沟 GV 26)", "Bǎihuì(百会 GV 20)" and "Dàzhuī(大椎 GV 14)" of governor vessel were selected, and electroacupuncture device was connected with "GV 14" and "GV 20". After completion of modeling in group D, "GV 26", "GV 20" and "GV 14" of governor vessel, and "Qìhǎi(气海 CV 6)", "Guānyuán(关元 CV 4)" and "Chéngjiāng(承浆 CV 24)" of conception vessel were selected; electroacupuncture device was connected with "GV 14" and "GV 20", "CV 4" and "CV 6". Neurological severity score was conducted.Enzyme linked immunosorbent assay(ELISA) was applied to determine the concentration of peripheral serum adrenocorticotropic hormone(ACTH) of rats, and immunohistochemical method was adopted to detect the expression levels of tumor necrosis factor α(TNF-α) and transforming growth factor β1(TGF-β1) in brain tissue of rats. The other 24 rats were also randomly divided into four groups mentioned above, 6 rats in each group, to detect cerebral ischemie volume. Results Compared with group B, the ischemia volume in brain tissue at 144 h after cerebral ischemia reperfusion decreased significantly in group C and group D(P〈0.05), and the ischemia volume in group D was less than that in group C(P〈0.05). The neurological impairment scores of group C and group D at all time points were lower than those of group B, and the differences were statistically significant(all P〈0.05). The scores of group D at all time points were lower than those of group C, and the differences since 24 h were statistically significant(all P〈0.05). Compared with group B, the excessive expression of ACTH was suppressed dynamically and generally in group C and group D(P〈0.05); the expression level of TNF-α was down-regulated and TGF-β1 was up-regulated as well in group C and group D(P〈0.05). The effect in group D was superior to that in group C. Conclusion Electroacupuncture at conception vessel and governor vessel can protect brain through the intervention of the expression of correlative signals of inflammatory response stress-injury-repair of cerebral ischemia reperfusion. 展开更多
关键词 ELECTROACUPUNCTURE conception vessel governor vessel adrenocorticotropic hormone tumor necrosis factor α transforming growth factor β1
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G-S变换的快速算法 被引量:34
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作者 罗延钟 昌彦君 《地球物理学报》 SCIE EI CAS CSCD 北大核心 2000年第5期684-690,共7页
在电磁场瞬变响应的数值计算中 ,常采用G S变换法作逆拉氏变换 .它是纯实数运算 ,而且只需对较少的拉氏变换变量s值作计算 (通常对每一采样时间选用 1 2个s值 ) ,因而是一种计算速度较快的算法 .但是 ,要对大量采样时间作计算 ,其计算... 在电磁场瞬变响应的数值计算中 ,常采用G S变换法作逆拉氏变换 .它是纯实数运算 ,而且只需对较少的拉氏变换变量s值作计算 (通常对每一采样时间选用 1 2个s值 ) ,因而是一种计算速度较快的算法 .但是 ,要对大量采样时间作计算 ,其计算量仍太大 .本文基于拉氏变换的延迟定理 ,建立了一种新的G S变换算法 .数值检验结果表明 ,新算法可成级次地减少对大量采样时间作G S变换的计算量 ,显著提高电磁场瞬变响应的计算速度 . 展开更多
关键词 g-s变换 逆拉氏变换 电磁场瞬变响应 快速算法
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Thinking on the Artistic Conception Creation of Plant Landscaping Design in Chinese Style Garden 被引量:4
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作者 陈晓刚 林辉 罗悦平 《Agricultural Science & Technology》 CAS 2014年第12期2178-2182,共5页
In modern Chinese style garden, the designer could express the emotions in garden creation to produce artistic conception with landscape plants, which could make the sightseers desire to integrate with the nature and ... In modern Chinese style garden, the designer could express the emotions in garden creation to produce artistic conception with landscape plants, which could make the sightseers desire to integrate with the nature and led to sympathizing with the concept, thereby motivating and arousing people's emotion to return to and close to nature. Through the 6 specific characteristics of "shape, color, aroma, shadow, sound and art" of landscape plants, some ways to build artistic conception in Chinese style garden were introduced in this study to provide references for the creation of artistic conception creation through senses in the future landscaping design. 展开更多
关键词 Landscape plants Artistic conception Poetic illusion
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改进G-S零点控制算法在雷达中的应用 被引量:3
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作者 郝亮飞 李勇 +1 位作者 李滔 于超鹏 《探测与控制学报》 CSCD 北大核心 2010年第1期72-76,共5页
针对目前对Gram-Schmidt(G-S)自适应零点控制算法的研究大多只停留在理论研究阶段,还没有将其应用于低截获概率(LPI,Low Probability of Intercept)雷达设计,提出一种改进的G-S自适应零点控制算法应用于连续波(CW,Continuous Wave)体制... 针对目前对Gram-Schmidt(G-S)自适应零点控制算法的研究大多只停留在理论研究阶段,还没有将其应用于低截获概率(LPI,Low Probability of Intercept)雷达设计,提出一种改进的G-S自适应零点控制算法应用于连续波(CW,Continuous Wave)体制LPI雷达。该算法可以把接收信号中的目标信息去除,只留下干扰信号,进而进行正交化处理,从而防止目标信息被当作干扰抑制掉。阵列方向图、零陷深度和误差分析等仿真结果表明:该算法在保证较快的收敛速度和较好的稳定性的基础上,相对于传统的G-S正交法有10 dB以上的零陷加深,从而验证了该算法能有效提升雷达的LPI性能。 展开更多
关键词 低截获概率 自适应零点控制 g-s算法 连续波
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G-S模型下的双边推荐算法 被引量:1
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作者 刘建明 顾凯 徐翔宇 《微电子学与计算机》 CSCD 北大核心 2016年第4期117-120,124,共5页
针对推荐算法忽视供应商偏好,引入Pareto最优的概念,提出一种改进的双边推荐算法.首先比对消费者要求和供应商属性,得出消费者对各个供应商的满意度;其次比对供应商要求和消费者信用属性,得到供应商对潜在消费者的满意度;最后消费者的... 针对推荐算法忽视供应商偏好,引入Pareto最优的概念,提出一种改进的双边推荐算法.首先比对消费者要求和供应商属性,得出消费者对各个供应商的满意度;其次比对供应商要求和消费者信用属性,得到供应商对潜在消费者的满意度;最后消费者的满意值作为G-S算法的输入项,得到消费者、供应商的匹配结果.仿真结果表明,算法提高双方的满意度. 展开更多
关键词 推荐算法 满意值 PARETO最优 g-s算法
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网状纤维G-S染色方法的改进及应用体会 被引量:2
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作者 沈媛 高玉霞 《诊断病理学杂志》 2017年第9期714-715,共2页
在日常病理诊断工作中,经常采用网状纤维特殊染色法显示病变组织网状支架的破坏情况,对于判断病变的性质、程度及其发展与转归具有重要意义。特别是在肿瘤病理诊断中,对于鉴别来源于上皮组织和间叶组织的恶性肿瘤具有重要价值。网状纤... 在日常病理诊断工作中,经常采用网状纤维特殊染色法显示病变组织网状支架的破坏情况,对于判断病变的性质、程度及其发展与转归具有重要意义。特别是在肿瘤病理诊断中,对于鉴别来源于上皮组织和间叶组织的恶性肿瘤具有重要价值。网状纤维染色方法较多,Gordon-Sweet(G-S)法是一种较为常用的特殊染色方法。该法是一种嗜银染色方法,它易受各种因素的干扰,在染色过程中如果操作不当,容易导致染色效果不理想。 展开更多
关键词 网状纤维 g-s染色 方法
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带扰动Lévy风险过程的G-S函数 被引量:2
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作者 赵翔华 董华 《高校应用数学学报(A辑)》 CSCD 北大核心 2008年第2期200-206,共7页
通过对带扰动项的Lévy风险过程的研究得到了其罚金折现期望(G-S)函数满足的更新方程,并给出了它的一个无穷级数表达式.
关键词 Lévy风险过程 罚金折现期望(g-s)函数 更新方程 Laplace指数
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