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Parameter Optimization for Turbine DeH Control System Based on Improved Genetic Algorithm

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Parameter Optimization for Turbine DEH Control System Based ...

2010 Chinese Control and Decision Conference

作者： na Li~1,Lixia Lv~1 1.North China electric Power University,Baoding 071003,China

＜正＞Improved Genetic Algorithm is used for parameter optimization of turbine DeH governing *** algorithm can avoid the premature convergence effectively and improve the global and local search *** optimization results show that such method has the advantages of fast computation,high precision,and better program *** provides a new way for parameter optimization of steam turbine governing system.

关键词： Genetic Algorithm Digital electrical Hydraulic(DeH) control system parameter optimization

Output-feedback Control of a Class of High-Order Nonlinear Systems

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Output-feedback Control of a Class of High-Order Nonlinear S...

2010 Chinese Control and Decision Conference

作者： na Duan,Xue-Jun Xie School of electrical engineering & Automation,Xuzhou Normal University,Xuzhou,Jiangsu Province,221116,China

＜正＞This paper considers a concrete example,and designs an improved output-feedback controller from the viewpoint of reducing the control effort at premise of maintaining the desired control performance（e.g.,asymptotical stability）.By introducing a new rescaling transformation,adopting an effective reduced-order observer,and choosing ingenious Lyapunov function and appropriate design parameters,the output-feedback controller guarantees the globally asymptotical stability of the closed-loop ***,from both the theoretical analysis and a concrete example,the smaller critical values for gain parameter and rescaling transformation parameter are obtained to reduce effectively the control effort and the rate of change of controller than the design of the related *** last,simulations are given to compare the control effort of two control schemes.

关键词： High-order nonlinear systems Control effort reduction Rescaling transformation Output-feedback control

预处理条件及金属离子改性对H-MOR分子筛的DMe羰基化性能影响

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化工学报 2015年第9期66卷 3504-3510页

作者：赵娜牛君阳刘亚华谭猗生李新刚天津大学化工学院天津化学化工协同创新中心天津300072 中国科学院山西煤炭化学研究所煤转化国家重点实验室山西太原030001

详细了考察不同预处理条件及反应温度对丝光沸石(H-MOR)分子筛二甲醚(DMe)羰基化制取醋酸甲酯(MA)的催化活性和稳定性的影响。研究结果表明,在氮气气氛中500℃预处理2 h、反应温度为180℃时H-MOR催化剂的DMe转化率最高,可达20.5%。虽然... 详细信息

详细了考察不同预处理条件及反应温度对丝光沸石(H-MOR)分子筛二甲醚(DMe)羰基化制取醋酸甲酯(MA)的催化活性和稳定性的影响。研究结果表明,在氮气气氛中500℃预处理2 h、反应温度为180℃时H-MOR催化剂的DMe转化率最高,可达20.5%。虽然提高反应温度可以进一步提高催化剂的DMe转化率,但易产生积炭,快速失活。此外,还考察了金属离子改性对H-MOR催化剂DMe羰基化活性的影响。采用离子交换法制备了Cu、Ni、Fe和Co等金属离子交换的H-MOR催化剂,活性测试结果表明:ie-Cu催化剂活性最好,DMe转化率为36.9%;ie-Ni催化剂的活性最稳定,DMe转化率稳定在24.5%。还原温度对ie-Cu催化剂DMe羰基化活性有重要影响,450℃还原后的ie-Cu催化剂活性要明显高于300℃还原的ie-Cu。

关键词：丝光沸石二甲醚羰基化金属离子改性

NOD-like receptors mediated activation of eosinophils interacting with bronchial epithelial cells： a link between innate immunity and allergic asthma

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Cellular & Molecular Immunology 2013年第4期10卷 317-329页

作者： Churl Kwok Wong Shuiqing Hu Karen Ming-Lam Leungt Jie Dong Lan He Yi Jun Chu Ida Miu-Ting Chu Huai-na Qiu Kelly Yan-Ping Liu ChristopherWai-Kei Lam Department of Chemical Pathology The Chinese University of Hong Kong Prince of Wales Hospital Hong Kong China Department of Medicine and Therapeutics The Chinese University of Hong Kong Prince of Wales Hospital Hong Kong China Macao Institute for Applied Research in Medicine and Health Macao University of Science and Technology Taipa Macao China

Key intracytosolic pattern recognition receptors of innate immunity against bacterial infections are nucleotide-binding oligomerization domain （NOD）-Iike receptors （NLRs）. We elucidated the NOD1 and NOD2-mediated activation of human eosinophils, the principal effector cells for allergic inflammation, upon interacting with human bronchial epithelial BeAS-2B cells in allergic asthma. eosinophils constitutively expressed NOD1,2 but exhibited nonsignificant responses to release chemokines upon the stimulation by NOD1 ligand 7-D-glutamyl-meso-diaminopimelic acid （ie-DAP） and NOD2 ligand muramyl dipeptide （MDP）. However, ie-DAP and MDP could significantly upregulate cell surface expression of CD18 and intercellular adhesion molecule （ICAM）-I on eosinophils and ICAM-1 on BeAS-2B cells, as well as induce chemokines CCL2 and CXCL8 release in the coculture system （all P〈0.05）. Both eosinophils and BeAS-2B cells were the main source for CXCL8 and CCL2 release in the coculture system upon ie-DAP or MDP stimulation. Direct interaction between eosinophils and BeAS-2B cells is responsible for CCL2 release, and soluble mediators are implicated in CXCL8 release. eRK and NF-KB play regulatory roles for the expression of adhesion molecules and chemokines in coculture. Treatment with NOD1,2 ligand could induce the subepithelial fibrosis and significantly enhance the serum concentration of total Ige, chemokine CCL5 for eosinophils and T helper type 2 （Th2） cells and asthma Th2 cytokine IL-13 in bronchoalveolar lavage fluid of ovalbumin-sensitized allergic asthmatic mice （all P〈0.05）. This study provides further evidence of bacterial infection-mediated activation of NOD1,2 in triggering allergic asthma via the activation of eosinophils interacting with bronchial epithelial cells at inflammatory airway.

关键词： allergy bronchial epithelial cells chemokines eosinophils signal transduction

小鼠中脑下丘神经元对单、双耳听觉信息突触反应的多样性研究

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听力学及言语疾病杂志 2021年第1期29卷 58-64页

作者：林涛何娜刘秀萍鄢俊广州市第一人民医院麻醉科广州510180 加拿大卡尔加里大学Cumming医学院Hotchkiss脑科研究所生理学与药理学系广州医科大学附属第二医院神经内科

目的研究小鼠中脑下丘单个神经元对单耳对侧、同侧声刺激的突触反应及双侧同时刺激的整合反应,探索其潜在的神经生理学基础与神经环路。方法52只正常C57小鼠,采用声刺激系统记录下丘单个神经元对单耳对侧、单耳同侧声刺激的频率-幅度反... 详细信息

目的研究小鼠中脑下丘单个神经元对单耳对侧、同侧声刺激的突触反应及双侧同时刺激的整合反应,探索其潜在的神经生理学基础与神经环路。方法52只正常C57小鼠,采用声刺激系统记录下丘单个神经元对单耳对侧、单耳同侧声刺激的频率-幅度反应域(frequency-amplitude response areas,FARA),获得神经元的特征频率(characteristic frequency,CF)和最低阈值(minimum threshold,MT)。采用活体全细胞膜片钳技术,在最适声刺激条件下(即声音参数为CF与MT),记录下丘同一个神经元分别对单耳对侧、单耳同侧声刺激的突触反应,以及双侧声音同时刺激时的突触整合反应,对记录到的突触反应及整合反应进行分类分析。结果共记录到146个下丘神经元,CF-对侧与CF-同侧分别为14.9±4.8、14.7±5.0 kHz,两者成直线相关且相关系数为1.0258;MT-对侧为19.3±19.3 dB,显著低于MT-同侧(45.1±18.6 dB),差异有统计学意义(Pexcitation,e)、无反应(no response,O)还是抑制(inhibition,I),可将这146个神经元分成7种不同类型,即ee、eO、eI、II、IO、ie和CM(complex-mode,CM)双耳神经元,分别占66.4%(97/146)、15.8%(23/146)、4.1%(6/146)、6.8%(10/146)、1.4%(2/146)、1.4%(2/146)和4.1%(6/146)。根据双耳整合特性,ee神经元可分成抑制ee/I、易化ee/F和无整合ee/N三种类型,分别占38.1%(37/97)、20.6%(20/97)和41.2%(40/97)。eO和II神经元对双耳信息的整合反应可出现抑制和无整合两种,eI神经元仅表现出抑制的整合反应,而IO和ie神经元则呈双耳无整合效应。结论ee、eO、eI、II、IO、ie和CM这7种不同类型的下丘双耳神经元各自具有不同的双侧突触结构和神经环路。

关键词：下丘兴奋性突触后电位抑制性突触后电位双耳整合

实时三维经食管超声心动图测定房间隔缺损最大径的价值评估

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中国临床医学 2016年第6期23卷 749-753页

作者：郭丽娜吴卫华马兰陆静宫霞谢晓奕上海交通大学附属胸科医院超声科上海200030

目的:探讨实时三维经食管超声心动图(real-time three-dimensional transesophageal echocardiography,RT3DTee)在测量房间隔缺损(atrial septal defect,ASD)最大径中的应用价值。方法:前瞻性分析2011年1月至2014年6月单中心筛查的继发孔中央型单孔ASD并接受封堵术患者的临床资料。比较RT3D-Tee、二维经胸超声心动图(two-dimensional transthoracic echocardiography,2D-TTe)、二维经食管超声心动图(two-dimensional transesophageal echocardiography,2DTee)测得的ASD最大径,并将三者与封堵器释放后的实际腰部直径进行相关性分析。结果:共31例患者入选,经RT3DTee[(21.81±8.57)mm]、2D-Tee[(20.31±8.50)mm]、2D-TTe[(23.08±10.89)mm]测得的缺损最大径与封堵器释放后实际腰部直径[(20.99±8.15)mm]比较,差异均无统计学意义。经RT3D-Tee、2D-Tee、2D-TTe测得的缺损最大径与实际腰部直径均高度相关,相关系数(r值)分别为0.902、0.981、0.897(P=0.000)。结论:RT3D-Tee在测定ASD最大径方面较二维超声并无明显优势。

关键词：实时三维经食管超声心动图房间隔缺损最大径封堵器

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难治性癫的病理学研究进展

中国实用儿科杂志 2007年第3期22卷 225-227页

作者：蔡淑英任榕娜福建医科大学福建福州350004 南京军区福州总医院儿科福建福州350025

难治性癫(癎)(ie)是指频繁的癫(癎)发作,至少每月4次以上,用适当的一线抗癫(癎)药物(antiepileptic drug,AeD)正规治疗且药物血药浓度在有效范围内,至少观察2年,仍不能控制且影响正常生活,包括耐药性癫(癎)、顽固性癫(癎)、慢性癫(癎)... 详细信息

难治性癫(癎)(ie)是指频繁的癫(癎)发作,至少每月4次以上,用适当的一线抗癫(癎)药物(antiepileptic drug,AeD)正规治疗且药物血药浓度在有效范围内,至少观察2年,仍不能控制且影响正常生活,包括耐药性癫(癎)、顽固性癫(癎)、慢性癫(癎)或治疗困难性癫(癎)等.

关键词：难治性癫痫病理学抗癫痫药物正规治疗耐药性癫痫顽固性癫痫癫痫发作 drug

Simulation-based optimization methods for caster operation under time confliction condition in steelmaking plant

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Simulation-based optimization methods for caster operation u...

2011 Chinese Control and Decision Conference（CCDC）

作者： Xiaochuan Luo,Chongzheng na, are with Key Laboratory of Integrated Automation of Process Industry,Ministry of education,Northeastern University,110004 Shenyang,China Rujiu Liu

In steelmaking process,the process times of machines,such as LD Converter and Refinery *** often different with the process time of them in the schedule for the reason of Metallurgical Processes *** those process time change,caster operator must increase/decrease the speed of caster machine to prevent the shutdown of caster *** the same time,caster operator must also give the cooling water flow rates of cooling system according to the *** to now,caster operator sets the speed and flow rates by personal experience *** paper present a simulation-based methods for caster operation under time confiiction condition in steelmaking *** experiments illustrate the efficiency of the simulation-based methods.

关键词： Operation Optimization Continues caster steelmaking process

Application of antenna diversity technique on Wireless Sensor Network localization

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Application of antenna diversity technique on Wireless Senso...

2010 Chinese Control and Decision Conference

作者： Lifeng Wei,na Liu,Yujun Pang,Qinghui Wang,Xiaomei Liu School of Information engineering,Shenyang Institute of Chemical Technology,Shenyang,110142,

＜正＞Node localization is becoming a hotspot in international research of WSN（Wireless Sensor Network） *** measuring,as the core of all location algorithms,may cause large range ***（Received Signal Strength Indication）,one of the common methods of distance measuring in WSN node localization,is very sensitive to the environment,thereby it causes great range *** antenna diversity technique,mostly used to enlarge the capacity of channels and expand the cover range of the signal in order to improve the quality of the transmission signal,is applied in the WSN node *** with the traditional RSSI distance measuring,the location accuracy is effectively improved.

关键词： RSSI WSN node localization antenna diversity