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Journal of Iron and Steel Research International 2013年第10期20卷 1-9页

作者： sun liang-liang WANG Xiu-ying State Key Laboratory of Synthetical Automation for Process Industries Northeastern University

The models, algorithms and implementation results of a computerized scheduling system were introduced for the steelmaking-continuous casting process （SCCP） of a steel plant in China. The scheduling of SCCP in this plant required that each cast plan should be processed on time, the charges in the same cast should be processed con- tinuously on the same caster, and the waiting time of the charges which are in front of each caster cannot exceed the given threshold. At the same time, the processing time of charges cannot be conflicted mutually in the same convert- ers or refining furnaces. Based on the research background, a hybrid optimal scheduling approach and its application were discussed. Aiming at the main equipment scheduling, an optimal scheduling method was proposed which con- sisted of equipment assignment algorithm based on dynamic program （DP） technique and conflict elimination algo rithm based on linear program （LP） technique. The approach guarantees that the charges are continuously processed on the same caster. Meanwhile, the requirement for high temperature ladle can also be satisfied due to the ladle matching function. Numerical results demonstrate solution quality, computational efficiency, and values of the mod els and algorithm.

关键词： schedule steelmaking process continuous casting process dynamic programming ladle scheduling

Steel-Making and Continuous/Ingot Casting Scheduling of Mixed Charging Plan Based on Batch Splitting Policy

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Journal of Iron and Steel Research International 2012年第4期19卷 17-21页

作者： LIU Wei sun liang-liang State Key Laboratory of Synthetical Automation for Process Industries Northeastern UniversityShenyang 110004 Liaoning China

For steel-making and continuous/ingot casting are the key processes of modern iron and steel enterprises, this paper proposes a batch splitting schedule policy to solve continuous and ingot casting schedule of mixed whole/ half charging plan for steel making. First establish the model of continuous and ingot casting schedule of mixed whole/half charging plan according to the complex constraints. Then solve this model by heuristic algorithm. Finally use actual data to prove the proposed algorithmrs validity and analyze the application result in steel plant.

关键词： continuous/ingot casiing whole/half charging batch splitting policy scheduling

直接蛋白沉淀结合串联质谱法用于血浆中5-氟尿嘧啶治疗药物监测应用

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环境化学 2024年第2期43卷 685-688页

作者：金永增孙亮李长坤任彪胡艳艳邯郸市中心医院药学部邯郸056008 岛津企业管理(中国)中国有限公司北京100020

本文建立一种直接蛋白沉淀结合串联质谱法测定血浆中5-氟尿嘧啶浓度的方法.以0.1 mol·L^(-1)硫酸锌作为蛋白沉淀剂处理血浆样品,离心后取上清液直接测定.以5-氟尿嘧啶-^(13)C,^(15)N_(2)为内标标准品,采用Shimadzu Shim-pack GIST-HP C... 详细信息

本文建立一种直接蛋白沉淀结合串联质谱法测定血浆中5-氟尿嘧啶浓度的方法.以0.1 mol·L^(-1)硫酸锌作为蛋白沉淀剂处理血浆样品,离心后取上清液直接测定.以5-氟尿嘧啶-^(13)C,^(15)N_(2)为内标标准品,采用Shimadzu Shim-pack GIST-HP C18-AQ (100 mm×2.1mm I.D.,1.9μm)色谱柱;水(A相)-甲醇(B相)为流动相,梯度洗脱:0—1 min,5%B;1—2 min,5%B→95%B;2—2.5 min,95%B;2.5—2.6 min,95%B→5%B;2.6—5 min,5%B,流速:0.3mL·min-1;柱温:35℃;进样体积:5μL;采用电喷雾离子源,负离子多反应监测模式(MRM)进行质谱定量分析.检测离子对:5-氟尿嘧啶m/z 129.1→42.1,5-氟尿嘧啶-^(13)C,^(15)N_(2)内标标准品m/z 132.1→44.1.该方法校准曲线相关系数大于0.999.质控品测定准确度结果与理论值接近,批内及批间准确度在94.8%—99.0%之间,RSD在0.9%—4.8%之间.5-氟尿嘧啶提取回收率在95.6%—99.8%之间.基质因子在0.92—0.96之间,内标归一化的基质因子在0.99—1.00之间.稳定性各实验条件下每一测定浓度的均值与标示浓度的相对偏差RE均在-5.2%—1.7%之间.该方法前处理简便、分析速度快、灵敏度高、专属性强、稳定性好,可用于5-氟尿嘧啶治疗药物监测.

关键词：直接蛋白沉淀串联质谱 5-氟尿嘧啶治疗药物监测

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Nusselt number correlation for turbulent heat transfer of helium-xenon gas mixtures

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Nuclear Science and Techniques 2021年第11期32卷 119-133页

作者： Biao Zhou Yu Ji Jun sun Yu-liang sun Institute of Nuclear and New Energy Technology Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of EducationTsinghua UniversityBeijing 100084China

A gas-cooled nuclear reactor combined with a Brayton cycle shows promise as a technology for highpower space nuclear power ***,a helium-xenon gas mixture with a molecular weight of14.5-40.0 g/mol is adopted as the working fluid to reduce the mass and volume of the *** Prandtl number for helium-xenon mixtures with this recommended mixing ratio may be as low as *** the convective heat transfer is closely related to the Prandtl number,different heat transfer correlations are often needed for fluids with various Prandtl *** studies have established heat transfer correlations for fluids with medium-high Prandtl numbers(such as air and water)and extremely lowPrandtl fluids(such as liquid metals);however,these correlations cannot be directly recommended for such helium-xenon mixtures without *** study initially assessed the applicability of existing Nusselt number correlations,finding that the selected correlations are unsuitable for helium-xenon *** establish a more general heat transfer correlation,a theoretical derivation was conducted using the turbulent boundary layer *** simulations of turbulent heat transfer for helium-xenon mixtures were carried out using Ansys *** on simulated results,the parameters in the derived heat transfer correlation are *** is found that calculations using the new correlation were in good agreement with the experimental data,verifying its applicability to the turbulent heat transfer for helium-xenon *** effect of variable gas properties on turbulent heat transfer was also analyzed,and a modified heat transfer correlation with the temperature ratio was *** on the working conditions adopted in this study,the numerical error of the property-variable heat transfer correlation was almost within 10%.

关键词： Gas-cooled nuclear reactor Space nuclear power Helium–xenon mixtures Convective heat transfer Nusselt number

新经济政策时期列宁的粮食生产观及其现实启示

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新余学院学报 2024年第3期29卷 16-22页

作者：丁珊孙迪亮曲阜师范大学马克思主义学院山东日照276826

新经济政策时期,列宁围绕粮食生产问题提出了一系列重要论述和独到见解,形成了科学的粮食生产观。粮食生产之基础地位论、粮食生产之内源动力论、粮食生产之必要保障论,构成了新经济政策时期列宁粮食生产观的基本内涵。新经济政策时期... 详细信息

新经济政策时期,列宁围绕粮食生产问题提出了一系列重要论述和独到见解,形成了科学的粮食生产观。粮食生产之基础地位论、粮食生产之内源动力论、粮食生产之必要保障论,构成了新经济政策时期列宁粮食生产观的基本内涵。新经济政策时期列宁的粮食生产观,对新时代中国保障国家粮食安全、推进农业现代化、加强农村耕地保护、落实节粮减损工作具有重要的现实启迪与借鉴意义。

关键词：新经济政策列宁粮食生产观

Dynamic weighted voting for multiple classifier fusion:a generalized rough set method

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Journal of Systems Engineering and Electronics 2006年第3期17卷 487-494页

作者： sun liang Han Chongzhao School of Electronic & Information Engineering Xi'an Jiaotong Univ. Xi'an 710049 P. R. China Inst. of Information Science & Technology Zhengzhou 450001 P. R. China

To improve the performance of multiple classifier system, a knowledge discovery based dynamic weighted voting （KD-DWV） is proposed based on knowledge discovery. In the method, all base classifiers may be allowed to operate in different measurement/feature spaces to make the most of diverse classification information. The weights assigned to each output of a base classifier are estimated by the separability of training sample sets in relevant feature space. For this purpose, some decision tables （DTs） are established in terms of the diverse feature sets. And then the uncertainty measures of the separability are induced, in the form of mass functions in Dempster-Shafer theory （DST）, from each DTs based on generalized rough set model. From the mass functions, all the weights are calculated by a modified heuristic fusion function and assigned dynamically to each classifier varying with its output. The comparison experiment is performed on the hyperspectral remote sensing images. And the experimental results show that the performance of the classification can be improved by using the proposed method compared with the plurality voting （PV）.

关键词： multiple classifier fusion dynamic weighted voting generalized rough set hyperspectral.

Ranking approach of cross-efficiency based on improved TOPSIS technique

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Journal of Systems Engineering and Electronics 2011年第4期22卷 604-608页

作者： Jie Wu Jiasen sun Yong Zha liang liang School of Management University of Science and Technology of China Hefei 230026 R R. China

The cross-efficiency evaluation method is reviewed which is developed as a data envelopment analysis （DEA） extensive tool. The cross-efficiency evaluation method is utilized to identify the decision making unit （DMU） with the best practice and to rank the DMUs by their respective cross-efficiency scores. The main drawbacks of the cross-efficiency evaluation method when the ultimate average cross-efficiency scores are used to evalu- ate and rank the DMUs are also pointed out. With the research gap, an improved technique for order preference by similarity to ideal solution （TOPSIS） is introduced to rank the crossfficiency by eliminating the average assumption. Finally, an empirical example is illustrated to examine the validity of the proposed method.

关键词： data envelopment analysis (DEA) cross-efficiency,improved technique for order preference by similarity to ideal solu-tion (TOPSIS) decision making unit (DMU).

绿色经济发展下电气节能中光伏新能源技术分析

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现代工业经济和信息化 2024年第6期14卷 199-201页

作者：孙亮殷淑萍辽宁邮电规划设计院有限公司辽宁沈阳110000

从光伏技术的发展历程、当前技术效率与成本以及光伏技术的研发与应用等方面入手,探讨了光伏系统中电气节能技术的应用,分析了光伏新能源技术在促进绿色经济发展中的作用以及面临的挑战和应对策略,旨在为光伏新能源技术的发展提供理论... 详细信息

从光伏技术的发展历程、当前技术效率与成本以及光伏技术的研发与应用等方面入手,探讨了光伏系统中电气节能技术的应用,分析了光伏新能源技术在促进绿色经济发展中的作用以及面临的挑战和应对策略,旨在为光伏新能源技术的发展提供理论支持和应用指导。

关键词：光伏新能源电气节能绿色经济可持续发展技术创新

Non-negative matrix factorization based modeling and training algorithm for multi-label learning

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Frontiers of Computer Science 2019年第6期13卷 1243-1254页

作者： liang sun Hongwei GE Wenjing KANG College of Computer Science and Technology Dalian University of TechnologyDalian 116024China

Multi-label learning is more complicated than single-label learning since the semantics of the instances are usually overlapped and not *** effectiveness of many algorithms often fails when the correlations in the feature and label space are not fully *** this end,we propose a novel non-negative matrix factorization(NMF)based modeling and training algorithm that learns from both the adjacencies of the instances and the labels of the training *** the modeling process,a set of generators are constructed,and the associations among generators,instances,and labels are set up,with which the label prediction is *** the training process,the parameters involved in the process of modeling are ***,an NMF based algorithm is proposed to determine the associations between generators and instances,and a non-negative least square optimization algorithm is applied to determine the associations between generators and *** proposed algorithm fully takes the advantage of smoothness assumption,so that the labels are properly *** experiments were carried out on six set of *** results demonstrate the effectiveness of the proposed algorithms.

关键词： multi-label learning non-negative least square optimization non-negative matrix factorization smoothness assumption

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“自动控制原理”一流本科课程建设实践

电气电子教学学报 2024年第2期46卷 63-66页

作者：张欣刘宝孙良中国石油大学(华东)控制科学与工程学院青岛266580

为了推进落实教育部一流课程“双万计划”的建设要求,对石油类高校“自动控制原理”课程的各教学环节开展了教学改革与实践。课程秉承石油石化特色,强调以学生为中心,遵从“知识扎实—能力创新—素质全面—思政融教”教学理念,采用混合... 详细信息

为了推进落实教育部一流课程“双万计划”的建设要求,对石油类高校“自动控制原理”课程的各教学环节开展了教学改革与实践。课程秉承石油石化特色,强调以学生为中心,遵从“知识扎实—能力创新—素质全面—思政融教”教学理念,采用混合式教学与探究式教学相融合的教学模式,利用多元化评价方法衡量学生学习效果。课程建设成效显著,为行业特色型高校建设一流本科课程提供了新思路。

关键词：行业特色型高校一流本科课程自动控制原理课程