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Plasma Science and Technology 2020年第8期22卷 63-70页

作者： J COSFELD P DREWS b bLACKWELL M JAKubOWSKI H NIEMANN D ZHANG Y FENG the Wendelstein-X Team Forschungszentrum Jülich GmbH Institut für Energie-und Klimaforschung-PlasmaphysikPartner of the Trilateral Euregio Cluster(TEC)52425 JülichGermany JARA-HPC Jülich Supercomputing CentreForschungszentrum Jülich GmbH52425 JülichGermany Australian National university Acton ACT2601 CanberraAustralia Max-Plank-Insitut für Plasmaphysik 17491 Greifswald/85748 GarchingGermany

The recently modified EMC3-EIRENE code package has been widely applied as an edge-plasma analysis tool and resulted in successful validation against various measured trends seen in stellarator and tokamak plasma *** has been shown that the code package applied for Wendelstein 7-X(W7-X)discharges in the interpretive mode can assess the impact of impurity effects on the electron density,measured by a set of Langmuir *** particular the spatial quantification of impurities and effects from the effective charge state Zeff and effective mass meff,which are non-trivial to record by diagnostics,were *** results showed that earlier assumptions of the effective charge-state distribution and effective mass for reported Langmuir probe measurements must be ***,reprocessing these measurements with code-interpreted spatial profiles of the effective charge state and effective mass led to an overall improved physical consistency.

关键词： Wendelstein 7-X plasma-wall interaction numerical-diagnostics EMC3-EIRENE

La2O3-Al2O3-SiO2 glass-infiltrated 3Y-TZP all-ceramic composite for the dental restorative application

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Progress in Natural Science:Materials International 2012年第3期22卷 224-230页

作者： Shenyong Shi a, Qinghong Zhang b, Hongzhi Wang a, Yaogang Li b a State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua university, Shanghai 201620, PR China b Engineering Research Center of Advanced Glasses Manufacturing Technology, MOE, Donghua university, Shanghai 201620, PR China [a] State Key Laboratory for Modi?cation of Chemical Fibers and Polymer Materials Donghua University Shanghai 201620 PR China [b] Engineering Research Center of Advanced Glasses Manufacturing Technology MOE Donghua University Shanghai 201620 PR China

The 3 mol% yttria stabilized tetragonal zirconia polycrystals (3Y-TZP) powder had three particle size distributions, while the fine one was lower than 100 nm. The 3Y-TZP compact was prepared by dry-pressing under pressures ranged from 10 to 30 MPa and then presintered at 1250 ℃ for 2 h. The matrix dry-pressed under the pressure of 20 MPa had a porosity of 16.7% and could be easily processed by computer aided design and computer aided manufacturing (CAD/ CAM), and which had been infiltrated by the La2O3-Al2O3-SiO2 glass at 1200 ℃ for 4 h. The flexural strength and fracture toughness of the composite were 710.7 MPa and 6.51 MPa m1/2, respectively. The low shrinkage (0.3%) of the composite can satisfy the net-shape fabrication standard. XRD results illustrated that zirconia in the La2O3-Al2O3-SiO2 glass-infiltrated 3Y-TZP all-ceramic composite was mainly in the tetragonal phase. SEM and EDS results indicated that the pores of the matrix were almost filled by the La2O3-Al2O3-SiO2 glass.

关键词： 3Y-TZP Glass-infiltrated Composite Mechanical properties

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波长为515nm的氩离子激光器的频率稳定

量子电子学 1991年第2期8卷 281-283页

作者：刘玲玲 u.brand 中国计量科学研究院长度处北京100013 布伦瑞克联邦德国技术物理所

用声光晶体对氩离子激光作频率调制,获得了碘分子的差拍饱和吸收信号。将得到的斜率极陡的—阶微商形式的饱和吸收信号作为鉴频曲线把氩离子频率激光稳定到^(127)I_2分子的p(13)43—0的a_3超精细分量上。通过与一稳定到相同精细分量的... 详细信息

用声光晶体对氩离子激光作频率调制,获得了碘分子的差拍饱和吸收信号。将得到的斜率极陡的—阶微商形式的饱和吸收信号作为鉴频曲线把氩离子频率激光稳定到^(127)I_2分子的p(13)43—0的a_3超精细分量上。通过与一稳定到相同精细分量的稳频氩离子激光拍频,给出激光频率稳定性优于±6.5×10^(-12),重复性优于±3.4×10^(-11)。

关键词：氩离子激光器频率稳定激光器

An artificial neural network visible mathematical model for real-time prediction of multiphase flowing bottom-hole pressure in wellbores

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Petroleum Research 2023年第3期8卷 370-385页

作者： Chibuzo Cosmas Nwanwe ugochukwu Ilozurike Duru Charley Anyadiegwu Azunna I.b.Ekejuba Department of Minerals and Petroleum Resources Engineering Technology Federal Polytechnic NekedeOwerriP.M.B.1036OwerriImo StateNigeria Department of Petroleum Engineering Federal University of TechnologyOwerriP.M.B.1526OwerriImo StateNigeria

Accurate prediction of multiphase flowing bottom-hole pressure(FbHP)in wellbores is an important factor required for optimal tubing design and production *** empirical correlations and mechanistic models provide inaccurate FbHP predictions when applied to real-time field datasets because they were developed with laboratory-dependent *** machine learning(ML)models for FbHP prediction are developed with real-time field data but presented as black-box *** addition,these ML models cannot be reproduced by other users because the dataset used for training the machine learning algorithm is not open *** make using the ML models on new datasets *** study presents an artificial neural network(ANN)visible mathematical model for real-time multiphase FbHP prediction in wellbores.A total of 1001 normalized real-time field data points were first used in developing an ANN black-box *** data points were randomly divided into three different sets;70%for training,15%for validation,and the remaining 15%for *** analysis showed that using the Levenberg-Marquardt training optimization algorithm(trainlm),hyperbolic tangent activation function(tansig),and three hidden layers with 20,15 and 15 neurons in the first,second and third hidden layers respectively achieved the best *** trained ANN model was then translated into an ANN visible mathematical model by extracting the tuned weights and *** analysis shows that the new model produced the expected effects of physical attributes on ***,statistical and graphical error analysis results show that the new model outperformed existing empirical correlations,mechanistic models,and an ANN white-box *** of the ANN on a larger dataset containing new data points covering a wider range of each input parameter can broaden the applicability domain of the proposed ANN visible mathematical model.

关键词： Flowing bottom-hole pressure Real-time prediction Artificial neural network Visible mathematical model Levenberg-marquardt optimization algorithm Hyperbolic tangent activation function Empirical correlations Mechanistic models

Microstructure and surface texture driven improvement in in-vitro response of laser surface processed AZ31b magnesium alloy

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Journal of Magnesium and Alloys 2021年第4期9卷 1414-1426页

作者： Tso-Chang Wu Sameehan SJoshi Yee-Hsien Ho Mangesh VPantawane Subhasis Sinha Narendra b.Dahotre Department of Materials Science and Engineering University of North Texas3940 N Elm StDentonTX 76207USA Center for Agile and Adaptive Additive Manufacturing University of North Texas3940 N Elm StDentonTX 76207USA Department of Metallurgical Engineering Indian Institute of Technology(BHU)VaranasiUttar Pradesh 221005India

The present work explored effects of laser surface melting on microstructure and surface topography evolution in AZ31b magnesium *** effects experienced by the material during laser surface melting were simulated using a multiphysics finite element *** and phase evolution were examined using scanning electron microscopy,X-ray diffraction,and electron back scatter *** topography was evaluated using white light *** interaction of surface melted samples with simulated body fluid was monitored by contact angle measurements and immersion studies up to 7 *** surface melting led to formation of a refined microstructure with predominantly basal crystallographic ***,the amount ofβphase(Mg_(17)Al_(12))increased with an increase in the laser fluence.βphase preferentially decorated the cell *** terms of topography,the surface became progressively rougher with an increase in laser *** a result,upon immersion in simulated body fluid,the laser surface melted samples showed an improved wettability,corrosion resistance,and precipitation of mineral having composition closer to the hydroxyapatite bone mineral compared to the untreated sample.

关键词： Laser surface melting Magnesium alloy Laser surface engineering biomineralization

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矿田构造的研究历史、现状与发展

地质通报 2011年第4期31卷 461-468页

作者：吴淦国吕承训中国地质大学(北京) 北京100083

矿田构造是指在矿田范围内,控制矿床的形成和分布的地质构造因素的总和。在矿田构造和矿床构造的含义中,既包括构造形迹和岩石组构特征,又包括控矿构造的形成机制和发展历史。近10几年来的矿田矿床研究不仅强调构造对于矿体的形态、分... 详细信息

矿田构造是指在矿田范围内,控制矿床的形成和分布的地质构造因素的总和。在矿田构造和矿床构造的含义中,既包括构造形迹和岩石组构特征,又包括控矿构造的形成机制和发展历史。近10几年来的矿田矿床研究不仅强调构造对于矿体的形态、分布和组合的控制作用,也深入于构造作用对成岩成矿过程的研究。综合分析了矿田构造研究的研究历史、研究内容、研究现状与问题,对矿田构造与找矿研究的发展方向进行了展望。

关键词：矿田构造构造解析构造成矿系列构造岩相构造地球化学界面找矿

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城市与自然之间嘉兴种子艺术中心

室内设计与装修 2024年第2期 24-27页

作者： b.L.u.E.建筑设计事务所 b.L.u.E.建筑设计事务所

种子艺术中心位于嘉兴市南湖区,距离市中心东侧10 km,处在城市与自然的过渡边界。项目定位为地产配套设施,近期作为附近社区的展示中心与零售空间,未来则活用为周边共享的邻里中心。艺术中心周围一半是农场与公园,一半是住宅与商业街,... 详细信息

种子艺术中心位于嘉兴市南湖区,距离市中心东侧10 km,处在城市与自然的过渡边界。项目定位为地产配套设施,近期作为附近社区的展示中心与零售空间,未来则活用为周边共享的邻里中心。艺术中心周围一半是农场与公园,一半是住宅与商业街,不同方位面向不同的景观与氛围,形成多元、生动的场所感。四周道路交会,人流聚集于此,是整个片区最具活力的核心点位。

关键词：邻里中心场所感嘉兴市南湖区配套设施商业街展示中心项目定位零售空间

Structurally Interesting Diarymethane Derivatives from Securidaca inappendiculata

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Chinese Journal of Chemistry 2020年第8期38卷 812-816页

作者： bin Zhou Yan Wu Lishe Gan Seema Dalal Maria b.Cassera Jianmin Yue State Key Laboratory of Drug Research Shanghai Institute of Materia MedicaChinese Academy of Sciences555 Zuchongzhi RoadShanghai 201203China College of Pharmaceutical Sciences Zhejiang UniversityHangzhouZhejiang 310058China Department of biochemistry MC 0308Virginia TechBlacksburgVirginia 24061United States Department of biochemistry and Molecular biology and Center for Tropical and Emerging Global Diseases(CTEGD)University of GeorgiaAthensGeorgia 30602United States

Securines A—E,three dimeric diarymethane derivatives(1-3)and two enantiomeric diarymethane derivative monomers(4 and 5),were isolated and characterized from the medicinal plant Securidaca *** 1 and 2 are a pair of enantiomeric diarymethane derivative dimers,and compound 3 is a mesomeric diarymethane derivative *** structures were determined by a combination of spectroscopic data,X-ray crystallography,electronic circular dichroism(ECD)analysis,and computational ECD *** compounds 1-3 showed moderate antiplasmodial activities with IC50 values of 0.9,1.4,and 1.5μM,respectively.

关键词： methane derivative circular

Neuroendocrine facets of behavior and toxicology

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Aquaculture and Fisheries 2024年第3期9卷 337-338页

作者： Keith b.Tierney balasubramanian Senthilkumaran Department of biological Sciences and the School of Public HealthUniversity of AlbertaEdmontonABT6G 2E9Canada Department of Animal biology School of Life SciencesUniversity of HyderabadP O Central UniversityGachibowliHyderabad500046TelanganaIndia

Professor ***,who I came to know as Senthil,came over to visit the university of Alberta in the summer of 2022 in connection with his Global Ambassador Fellowship program at university of Saskatechewan,***,there was that reason to visit,but there was another one as well,one that tied us *** years before Senthil had been considered for a postdoctoral fellowship with the legend that was Dick ***,it didn’t materialize and then he moved to Japan to do his Post Doc under *** *** had been Dean and a preeminent endocrinologist at the u of A.I came to know Dick near the end of my PhD;he had brought me out to bamfield Marine Sciences Centre to carryout research using their then-new,and very expensive,simulated *** left an incredible mark on all of us that knew him;he represented all that was wonderful and achievable in *** spent time with him was akin to shaking Sinatra’s hand,at least in the world of biology in that *** this common history,Senthil and I were fast friends.

关键词： Canada shaking carry

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