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Some Remarks on Stochastic H∞ Control of Linear and Nonlinear It-type Differential Systems

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Some Remarks on Stochastic H∞ Control of Linear and Nonline...

第三十届中国控制会议

作者： CHEN bor-Sen Department of Electrical Engineering National Tsing Hua University

This paper studies linear and nonlinear stochastic H control of It?-type stochastic differential systems with all the state,control input and external disturbance-dependent *** general linear stochastic systems with random coefficients,it is shown that the mixed H/H design as well as the sole H design is associated with the solvability of some coupled backward stochastic differential equations(BSDEs).By means of Hamilton-Jacobi inequalities,the nonlinear stochastic H control with deterministic coefficients and(x,u,v)-dependent noise is extensively investigated.

关键词： Linear stochastic systems Nonlinear stochastic systems H2/H∞ control H∞ control Backward stochastic differential equations

Thoughts of a travelling ecologist *** marriage of invasion biology and social science is preordained

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生物安全学报 2016年第4期25卷 235-237页

作者： Gábor L.LOVEI Institute of Applied Ecology Fujian Agriculture and Forestry UniversityFuzhouFujian 350002China Department of Agroecology Aarhus UniversityFlakkebjerg Research CentreDK-4200 SlagelseDenmark

The human race now declared that it rules the ***'officially'declared the start of a new era in the history of the Earth,the *** Executive Committee of the International Union of Geological Sciences accepted the propo... 详细信息

关键词：生态学家社会科学生物学国际地质科学联合会旅行婚姻入侵人类世

Robust Resource Management Control for CO2 Emission and Reduction of Greenhouse Effect: Stochastic Game Approach

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Journal of Environmental Protection 2011年第9期2卷 1172-1191页

作者： bor-Sen Chen Ying-Po Lin 不详

With the increasingly severe global warming, investments in clean technology, reforestation and political action have been studied to reduce CO2 emission. In this study, a nonlinear stochastic model is proposed to describe the dynamics of CO2 emission with control inputs: clean technology, reforestation and carbon tax, under stochastic uncertainties. For the efficient resources management, a robust tracking control is designed to force resources tracking a desired reference output. The worst-case effect of stochastic parametric fluctuations, external disturbances and uncertain initial conditions on the tracking performance is considered and minimized from the dynamic game theory perspective. This stochastic game problem, in which one player (stochastic uncertainty) maximizes the tracking error and another player (control input) minimizes the tracking error, could be equivalent to a robust minimax tracking problem. To avoid solving the HJI, a fuzzy model is proposed to approximate the nonlinear CO2 emission model. Then the nonlinear stochastic game problem could be easily solved by fuzzy stochastic game approach via LMI technique.

关键词： CO2 Emission System Dynamic Game Theory Greenhouse Effect LMI Resource Management Control Robust Tracking Control T-S Fuzzy Model

解糖微小寄生菌的菌株间差异对其寄生行为的影响

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解糖微小寄生菌的菌株间差异对其寄生行为的影响

第十六次全国牙体牙髓病学学术大会

作者：聂杰 Daniel R·Utter 李永亮王晓燕何雪松 Jeffrey McLean Batbileg bor 北京大学口腔医学院牙体牙髓科 Department of Organismic and Evolutionary Biology Harvard University Department of Periodontics University of Washington

目的:解糖微小寄生菌（Saccharibacteria）专性寄生于宿主细菌表面,形成独特的"细菌-细菌"寄生关系,并可能在牙周炎等口腔疾病中发挥重要作用。作为近年才得以分离培养的新微生物,较少的可培养菌株数量限制了对其寄生行为的深入理解。...

目的:解糖微小寄生菌（Saccharibacteria）专性寄生于宿主细菌表面,形成独特的"细菌-细菌"寄生关系,并可能在牙周炎等口腔疾病中发挥重要作用。作为近年才得以分离培养的新微生物,较少的可培养菌株数量限制了对其寄生行为的深入理解。本研究通过平行诱饵技术分离解糖微小寄生菌,从株水平比较细菌间差异对其寄生行为的影响,并通过测序技术在基因水平上初步探讨菌株间差异对寄生行为的影响。材料和方法:收集志愿者的非刺激性唾液样本（n=16）置于放线菌选择性培养基中厌氧培养,将分离鉴定得到的不同放线菌保存于96孔板中建立宿主库。收集牙周炎患者的非刺激性唾液（n=16）,离心后使用0.45μm滤网过滤得到含解糖微小寄生菌的菌液。将过滤后的菌液分别加入放线菌宿主库孔板中,微需氧条件下培养得到稳定的解糖微小寄生菌-宿主共培养物,达到分离解糖微小寄生菌的目的。观察不同解糖微小寄生菌的生物学特性及其与不同宿主放线菌（n=15）的结合能力,并选取同一菌种不同菌株的解糖微小寄生菌与放线菌宿主进行"生长-抑制"试验,分析菌株间差异对其寄生行为的影响。之后进行全基因组测序并分析不同菌株的基因特点。结果:通过分离鉴定获得76种不同的放线菌种纳入宿主库。采用平行诱饵技术新发现14株解糖微小寄生菌,其中10株属于HMT-352菌种。HMT-352菌种的10个菌株与宿主的结合能力各不相同,"生长-抑制"试验表明各菌株与放线菌的寄生行为也各不相同。测序分析结果提示编码未知蛋白的GC0000518基因可能在解糖微小寄生菌的寄生行为中发挥关键作用。结论:通过建立放线菌宿主库,使用平行诱饵技术可以高效的分离口腔解糖微小寄生菌。不同菌株表现出不同的宿主结合能力和寄生生长特性,在菌株水平比较解糖微小寄生菌的表型和基因差异更有助于我们进一步探寻寄生行为的内在机制。

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Some Properties of Generalized Lyapunov Equations

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Some Properties of Generalized Lyapunov Equations

2011 Chinese Control and Decision Conference（CCDC）

作者： bor-Sen Chen Department of Electrical Engineering National Tsing Hua University

By means of the spectral analysis method,this paper studies a class of generalized Lyapunov equations （GLEs） arising from stochastic stability.A necessary and sufficient condition is given for the existence and uniqueness of the symmetric/skew-symmetric solutions of such GLEs.A sufficient condition for the GLEs have no and have more than one symmetric/skew-symmetric solution is also presented,respectively.

关键词： Stochastic systems generalized Lyapunov equations operator spectrum symmetric solution skewsymmetric solution

Preliminary analysis on roles of metal–organic compounds in the formation of invisible gold

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Acta Geochimica 2021年第6期40卷 1050-1072页

作者： Medet Junussov Mádai Ferenc Kristály Ferenc Tòth Tivadar Fintor Krisztián Muránszky Gábor Prekob Ádám Hámor-VidóMária Department of Mineralogy and Petrography Institute of Mineralogy and GeologyFaculty of Earth Sciences and EngineeringUniversity of MiskolcMiskolc-Egyetemváros 3515Hungary Institute of Mineralogy and Geology Faculty of Earth Sciences and EngineeringUniversity of MiskolcMiskolc-Egyetemváros 3515Hungary Department of Mineralogy and Geochemistry Faculty of Science and InformaticsUniversity of SzegedAradi vértank tere 1Szeged 6720Hungary Institute of Chemistry Faculty of Material Sciences and EngineeringUniversity of MiskolcMiskolc-Egyetemváros 3515Hungary Department of Geology and Meteorology Institute of Geography and Earth SciencesFaculty of SciencesUniversity of PécsVasvári pál utcaPecs 7622Hungary

The paper comprises new analytical data on the nature and occurrence of gold in solid pyrobitumen,closely associated with the main gold-bearing sulfide arsenic ores of the Bakyrchik gold deposit(Kazakhstan),related to post-collisional magmatic-hydrothermal *** mineralization of the deposit occurs mainly in the form of an“invisible”type of gold in the structures of arsenian pyrite and arsenopyrite,and the form of gold-organic compounds of pyrobitumen in carbonaceous-terrigenous sequences of Carboniferous *** and electron microscopic analysis,Raman and FT-Infrared analysis,mineralogical and three-step sequential extraction analysis(NH2OHHCl,H2O2,HNO3?HCl)has been carried out using 9 ore samples(from 3 different types of ores)for a comprehensive study of pyrobitumen and sulfide arsenic ores focusing mainly on organic *** sequentially extracted precious metal content of pyrobitumen reaches up to 7 ppm gold and other metals like Ag 4 ppm,Pt 31 ppb,and Pd 26 ppb,forming metal–organic compounds,while arsenic sulfide minerals incorporate 11 ppm gold,39 ppm Ag,0.49 ppm *** enrichment of gold associating with organic matter and sulfide ore minerals was confirmed in this *** matter was active in the migration of gold and the capture of gold by ***,the reductive organic matter agent released gold,most likely for the sulfide arsenic ore *** was a decisive factor in the concentration,transportation,and preservation of gold in the deposit.

关键词： Gold Pyrobitumen Bakyrchik Vitrinite Metal-organic compounds

Encephalic hemodynamic phases in subarachnoid hemorrhage:how to improve the protective effect in patient prognoses

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Neural Regeneration Research 2015年第5期10卷 748-752页

作者： Marcelo de Lima Oliveira Daniel Silva de Azevedo Milena Krajnyk de Azevedo Ricardo de Carvalho Nogueira Manoel Jacobsen Teixeira Edson bor-Seng-Shu Division of Neurological Surgery Hospital das ClinicasSchool of MedicineUniversity of Sao Paulo

Subarachnoid hemorrhage is frequently associated with poor prognoses. Three different hemo- dynamic phases were identified during subarachnoid hemorrhage： oligemia, hyperemia, and vasospasm. Each phase is associated with brain metabolic changes. In this review, we correlated the hemodynamic phases with brain metabolism and potential treatment options in the hopes of improving patient prognoses.

关键词： hemodynamic phases cerebral subarachnoid hemorrhage metabolic crises

Age of the Beishan eclogites and its tectonic implications

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Age of the Beishan eclogites and its tectonic implications

中国矿物岩石地球化学学会第13届学术年会

作者： bor-ming Jahn Department of Geosciences National Taiwan University

＜正＞The Beishan orogen is situated in the southern margin of the Central Asian Orogenic Belt（CAOB）.It is connected with the Tianshan orogen to the west and the Mongolia-Xing’anling orogen to the *** orogen exhibits a well-preserved Neoproterozoic to Late Paleozoic sequence containing ophiolites,accretionary complexes and eclogites.U-Pb zircon dating of eclogites yielded two concordant ages,（886±4） Ma for the cores and（465±10） Ma for the *** zircon cores display bright luminescence with homogeneous or planar/sector zoning,intermediate Th/U ratios（0.17～0.47）,and HREE-enriched patterns with negative Eu anomalies（Eu/Eu* =0.16～0.58）.These features,coupled with their formation temperatures of 680～710℃,suggest that the core age represents the time of an earlier upper amphibolite facies metamorphic *** contrast,the zircon rims

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Partial equilibrium of radiogenic and stable isotope systems in garnet peridotite during ultrahigh-pressure metamorphism

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Partial equilibrium of radiogenic and stable isotope systems...

中国科学院地质与地球物理研究所2003学术年会

作者： bor-MING JAHN Geosciences-Rennes Universite de Rennes 1Campus de Beaulieu35042 Rennes CedexFrance

A critical question in radiometric dating of metamorphic rocks is whether minerals used to define internal isochrons have achieved isotopic equilibrium during a given metamorphic event,followed by preservation of the equilibrium afterward.A garnet peridotite at Zhimafang in the Sulu terrane of eastern China shows incongruent U-Pb,Rb-Sr,and Sm-Nd *** SHRIMP U-Pb dating yielded an isochron age of 224±8 Ma,pointing to zircon growth during Triassic UHP meta-morphism. Two mineral assemblages gave consistent Rb-Sr internal isochron ages of 201±4 and 205±4 Ma,but much older Sm-Nd internal isochron ages of 376±16 and 378±24 ***, the Sm-Nd radiometric system fails to reequilibrate among the dated minerals during the Triassic UHP metamorphic event for the garnet *** result is confirmed by the state of oxygen isotope equilibrium(or disequilibrium) among the constituent minerals in the garnet *** particular,garnet is not in oxygen isotope equilibrium with any other of the analyzed *** degree of oxygen isotope disequilibria among the other minerals varies from pair to *** isotope equilibrium is observed only between orthopyroxene and olivine for both samples and between phlogopite and clinopyroxene for one *** appears that the U-Pb,Rb-Sr,Sm-Nd,and O isotope systems in minerals of the garnet peridotite are in partial equilibrium during UHP metamor-phism, i.e.,equilibrium with respect to some isotopes and minerals,but not *** on available experimental diffusion data,our study of the combined U-Pb,Rb-Sr,Sm-Nd,and O isotope systems in the gamet peridotite demonstrates that the time scale for the UHP metamorphism and subsequent HP eclogite-facies recrystallization is possibly in the range of about 12 to 26 Ma,which was not long enough for the reequilibration of the Sm-Nd and 0 isotope systems,but just long enough for the reequilibration of the Rb-Sr isotope ***,the rate of Sr diffusion in phlogopite (t

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