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小肠之“火”新解

中华中医药杂志 2024年第4期39卷 1793-1796页

作者：韦汉卿胡佳何斌庞栋君邓雯蔡定均成都中医药大学针灸推拿学院成都610075 江西中医药大学中医基础理论分化发展研究中心南昌330004

小肠者,与心相合,惟小肠之“火”可代心火行令,具有重要的生理作用。但是脾胃论的发展将大肠与小肠功能统归于胃,小肠开始失去其独立性,逐渐被中医体系边缘化。当前中医学对小肠的认识较为局限,更多侧重于小肠之“火”的病理状态,而忽... 详细信息

小肠者,与心相合,惟小肠之“火”可代心火行令,具有重要的生理作用。但是脾胃论的发展将大肠与小肠功能统归于胃,小肠开始失去其独立性,逐渐被中医体系边缘化。当前中医学对小肠的认识较为局限,更多侧重于小肠之“火”的病理状态,而忽视其所具有的更多的生理作用。文章旨在重新阐述小肠之“火”的内涵,探析其与五脏六腑之间可能存在的联系,以期为未来临床上诊疗疾病提供新的思路。

关键词：小肠小肠之“火” 内涵生理作用

基于改进鲸鱼优化算法的分布式电源接入配电网继电保护的整定优化研究

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电力科学与技术学报 2024年第2期39卷 74-79页

作者：樊群才胡笳廖艳萍杨爱红国网山西省电力公司运城供电公司山西运城044000

分布式电源因为具有灵活性高、成本低、绿色低碳等优点而被越来越多地接入配电网,但是由于其改变了原有配电网的潮流拓扑结构,也给传统的电流差动保护提出了新的要求。首先分析大量分布式电源的接入对配电网继电保护的影响;随后考虑到... 详细信息

分布式电源因为具有灵活性高、成本低、绿色低碳等优点而被越来越多地接入配电网,但是由于其改变了原有配电网的潮流拓扑结构,也给传统的电流差动保护提出了新的要求。首先分析大量分布式电源的接入对配电网继电保护的影响;随后考虑到继保的速动性、灵敏性要求,引入收敛速度较快的鲸鱼优化算法,并引入列文伯格马奎特(Levenberg-Marquadt,LM)算法对其进行改进;最后对分布式电源接入配电网时的电流保护整定值进行优化,用收敛速度较快的鲸鱼优化算法进行全局寻优,为避免陷入局部最优而转入LM算法进一步求解。实验分析结果表明,LM算法改进的鲸鱼优化算法的引入可以加快收敛速度,提高继保装置的速动性,适用于分布式电源接入配电网时的继保整定优化。

关键词：分布式电源配电网继电保护鲸鱼优化算法

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Relationship between rheological behavior and flotation rate in slurry with different chalcopyrite and lizardite concentration

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Journal of Central South University 2022年第5期29卷 1479-1487页

作者： hu jia-cheng SHI Qing School of Minerals Processing and Bioengineering Central South UniversityChangsha 410083China Key Laboratory of hunan Province for Clean and Efficient Utilization of Strategic Calcium-Containing Mineral Resources Central South UniversityChangsha 410083China

The relationship between viscosity/yield stress and flotation rate in different chalcopyrite and lizardite concentrations was investigated by zeta potential measurements,rheological tests,flotation experiments,and DerjguinLandau-Verwey-Overbeek theoretical *** indicated that the concentration of minerals would affect the viscosity and yield stress of the *** is,the viscosity/yield stress in the slurry rises accordingly when the concentration of minerals *** increase in viscosity/yield stress in slurry is also unfavorable to the enrichment of chalcopyrite but is conducive to the entrainment of lizardite in either single or binary ***,the flotation rate of chalcopyrite decreases while that of lizardite increases with the rise in viscosity/yield stress.

关键词： chalcopyrite lizardite rheology flotation rate

A Symmetric Linearized Alternating Direction Method of Multipliers for a Class of Stochastic Optimization Problems

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Journal of Systems Science and Information 2023年第1期11卷 58-77页

作者： jia hu Qimin hu Networked Supporting Software International S&T Cooperation Base of China Jiangxi Normal UniversityNanchang 330022China

Alternating direction method of multipliers(ADMM)receives much attention in the recent years due to various demands from machine learning and big data related *** 2013,Ouyang et *** the ADMM to the stochastic setting for solving some stochastic optimization problems,inspired by the structural risk minimization *** this paper,we consider a stochastic variant of symmetric ADMM,named symmetric stochastic linearized ADMM(SSL-ADMM).In particular,using the framework of variational inequality,we analyze the convergence properties of ***,we show that,with high probability,SSL-ADMM has O((ln N)·N^(-1/2))constraint violation bound and objective error bound for convex problems,and has O((ln N)^(2)·N^(-1))constraint violation bound and objective error bound for strongly convex problems,where N is the iteration *** ADMM can improve the algorithmic performance compared to classical ADMM,numerical experiments for statistical machine learning show that such an improvement is also present in the stochastic setting.

关键词： alternating direction method of multipliers stochastic approximation expected convergence rate and high probability bound convex optimization machine learning

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融合语义特征的无监督关键词提取算法

计算机与数字工程 2024年第7期52卷 1909-1915,1926页

作者：赵长路刘军胡佳胡宝权兰州理工大学机电工程学院兰州730050 哈尔滨商业大学计算机与信息工程学院哈尔滨150028

针对传统的词图模型的关键词提取算法缺乏文本语义理解的不足,提出一种融合语义特征的无监督关键词提取算法,该方法结合词嵌入技术与词图模型的思想,将文本语义信息和语序信息同时融入到传统的词图模型算法中。首先利用Word2vec和Doc2ve... 详细信息

针对传统的词图模型的关键词提取算法缺乏文本语义理解的不足,提出一种融合语义特征的无监督关键词提取算法,该方法结合词嵌入技术与词图模型的思想,将文本语义信息和语序信息同时融入到传统的词图模型算法中。首先利用Word2vec和Doc2vec模型分别对词和文本进行向量表征,获取文本的语序信息,然后通过词向量计算出候选词与文本之间的语义相似度,进而改进TextRank算法,重新对候选关键词之间的边权值和初始值进行分配,并构建对应的重启概率矩阵和转移概率矩阵用于词图模型迭代计算候选词的分值以及关键词的提取。实验结果表明,有效地融合文本的语义信息和语序信息能够提升关键词提取的准确性。

关键词：提取语义信息语序信息向量表征 TextRank算法

Science Letters:Multi-frequency proportional-resonant (MFPR) current controller for PWM VSC under unbalanced supply conditions

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第10期8卷 1527-1531页

作者： hu jia-bing HE Yi-kang Sehool of Eleetrieal Engineering Zhejiang University Hangzhou 310027 China

This letter presents a multi-frequency proportional-resonant （MFPR） current controller developed for PWM voltage source converter （VSC） under the unbalanced supply voltage conditions. The delta operator is used in place of the shift operator for the implementation of MFPR by using a low-cost fixed-point DSE The experimental results with an alternative control strategy validated the feasibility of the proposed MFPR current controller for the PWM VSC during voltage unbalance.

关键词： PWM VSC Multi-frequency proportional-resonant (MFPR) Voltage unbalance

Antenna Sidelobe Canceller of Kalman Filter

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Wuhan University Journal of Natural Sciences 1999年第2期4卷 82-85页

作者： hu, jia-yuan Wuhan Univ Wuhan China

The adaptive array antenna may be considered as a general sidelobe canceller. Directional interference suppression is based on a recursive state estimation of Kalman filter. For the stationary filter,this leads to an iterative solution of Wiener Hops matrix equation. The performance of sidelobe canceller are studied by computer simulation. The result of simulation shows that the sidelobe canceller may be regarded as a special case of an adaptive array atenna.

关键词： Kalmen filter sidelobe canceller adaptive antenna

Analysis and Prediction Model Reinforced UHPC Shrinkage Property

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Journal of Architectural Research and Development 2024年第2期8卷 99-107页

作者： Shuwen Deng Zhiming huang Hao Chen jia hu hunan Construction Investment Group Changsha 410026China College of Water Resources and Civil Engineering Hunan Agricultural UniversityChangsha 410128China Key Laboratory for Wind and Bridge Engineering of hunan Province School of Civil EngineeringHunan UniversityChangsha 410082China

This paper explores the shrinkage of reinforced UHPC under high-temperature steam curing and natural curing *** results are compared with the existing shrinkage prediction *** results show that the maximum shrinkage strain of reinforced UHPC after steam curing is 164μεand gradually becomes *** for natural curing,the maximum shrinkage strain is 173μεand the value stabilizes on the 10th day after *** indicated that steam curing can significantly reduce shrinkage *** with the plain UHPC tested in the previous literature,the structural reinforcement can significantly inhibit the UHPC shrinkage and greatly reduce the risk of cracking due to *** comparing the results in this paper with the existing models for predicting the shrinkage strain development,it is found that the formula recommended in the French UHPC structural and technical specification is suitable for the shrinkage curve in the present paper.

关键词： Ultra-high performance concrete(UHPC) UHPC shrinkage Reinforced UHPC slab Shrinkage prediction

气候条件对黔北地区辣椒产量的影响与气象产量预测模型研究

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西南农业学报 2024年第6期37卷 1322-1328页

作者：胡家敏潘岑于飞古书鸿贵州省生态与农业气象中心贵阳550002 贵州省山地气候与资源重点实验室贵阳550002 贵州省气象服务中心贵阳550002

【目的】探明影响黔北地区辣椒产量的关键气象因子、关键时段以及气象条件对黔北地区辣椒产量的影响强度,为黔北地区辣椒生产决策、气候影响评估和产量预测提供理论依据。【方法】采用产量分离方法和数理统计对影响黔北地区辣椒产量的... 详细信息

【目的】探明影响黔北地区辣椒产量的关键气象因子、关键时段以及气象条件对黔北地区辣椒产量的影响强度,为黔北地区辣椒生产决策、气候影响评估和产量预测提供理论依据。【方法】采用产量分离方法和数理统计对影响黔北地区辣椒产量的关键气象因子、关键时段以及关系进行研究;并以播州区为研究区,研究辣椒气象产量预测模型。【结果】6月的平均气温和最高气温越高,越不利辣椒产量形成;8月下旬至9月中旬的最低气温为产量的限制性因子,最低气温越高则产量越高。在日较差大于8.5℃的情况下,随着日较差的增大,辣椒产量呈缓慢增加趋势。6月下旬的降水量为辣椒生长的水分限制因子,降水量增多则产量增高。4月中旬至5月上旬、6月中旬至下旬的日照时数与气象产量呈负相关。播州区辣椒气象产量预测模型为Y_(w)=-40.836T_(6月中旬至下旬)+40.644T_(8月上旬)-106.159。【结论】黔北地区气象条件对辣椒产量影响程度达±50%左右。不同区域气象条件对辣椒产量影响的关键时段不同,播州区气候条件影响的关键时段在中后期。辣椒生长中期,温度与辣椒产量呈显著负相关;除播州区6月下旬降水量限制辣椒生长外,大部分县市区降水均能满足辣椒生长需要;日照时数对辣椒产量的影响呈前期为正,后期为负。

关键词：黔北地区辣椒产量气象产量预测模型

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