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Predicting the optical observables for nucleon scattering on even-even actinides

Chinese Physics C 2017年第9期41卷 123-128页

作者： D. S. Martyanov E. Sh. Soukhovitskii r. Capote j. M. Quesada S. Chiba joint Institute for Energy and nuclear research 220109 Minsk-Sosny Belarus nAPC-nuclear Data Section International Atomic Energy Agency Vienna A-1400 Austria Departamento de Fisica Atomica Molecular y Nuclear Universidad de Seviha Ap.1065 E-4i080 Sevilla Spain research Laboratory for nuclear reactors Tokyo Institute of Technology 2-12-1-N1-90okuyama Meguro-ku Tokyo 152-8550 Japan

The previously derived Lane consistent dispersive coupled-channel optical model for nucleon scattering on 232Th and 23Su nuclei is extended to describe scattering on even-even actinides with Z=90-98. A soft-rotator- model （SrM） description of the low-lying nuclear structure is used, where the SrM Hamiltonian parameters are adjusted to the observed collective levels of the target nucleus. SrM nuclear wave functions （mixed in K quantum number） have been used to calculate the coupling matrix elements of the generalized optical model. The ＂effective＂ deformations that define inter-band couplings are derived from the SrM Hamiltonian parameters. Conservation of nuclear volume is enforced by introducing a dynamic monopolar term to the deformed potential, leading to additional couplings between rotational bands. The fitted static deformation parameters are in very good agreement with those derived by Wang and collaborators using the Weizs^cker-Skyrme global mass model （WS4）, allowing use of the latter to predict cross sections for nuclei without experimental data. A good description of the scarce ＂optical＇experimental database is achieved. SrM couplings and volume conservation allow a precise calculation of the compound-nucleus formation cross sections, which is significantly different from that calculated with rigid-rotor potentials coupling the ground-state rotational band. The derived parameters can be used to describe both neutron- and proton-induced reactions.

关键词： optical model soft-rotator model FrDM deformations WS4 deformations even-even actinides

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Phytochemistry and biological activities of Heracleum persicum: a review

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journal of Integrative Medicine 2018年第4期16卷 223-235页

作者： Zahra Majidi S.n.Sadati Lamardi Department of Traditional Pharmacy School of Traditional Medicine Tehran University of Medical Sciences

Heracleum persicum Desf. ex Fisch is used in Iranian traditional medicines, for the treatment of various diseases including neurological, gastrointestinal, respiratory, rheumatological and urinary tract diseases. In phytochemical analysis of H. persicum, several classes of natural chemicals including volatile （aliphatic esters, carbonyls, phenyl propenes and terpenes） and nonvolatile （flavonoids, furanocoumarins, tannins and alkaloids） constituents as well as different minerals have been identified. Scientific studies on H. persicum proved that it has a wide range of biological and pharmacological activities. This article has provided comprehensive information on Iranian traditional uses, phytochemistry and pharmacolog- ical activities of H. persicum.

关键词： Colpar heracleum persicum Pharmacology phytochemistry

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污水灌溉系统中氮磷转化运移的试验研究

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水利学报 2004年第4期35卷 72-79页

作者：杨金忠 n.jayawardane j.Blackwell 陆垂裕水资源与水电工程科学国家重点实验室(武汉大学) 湖北武汉430072 澳大利亚科学与工业组织土地与水研究所

本文详细介绍了污水处理和回用相结合系统的野外试验,讨论了试验系统的设计、安装和资料收集,分析了试验过程中的水分平衡、污水灌溉过程中各种污染物的变化、积累和运动,为进一步优化利用此类系统提供了基础数据。研究结果表明,文中所... 详细信息

本文详细介绍了污水处理和回用相结合系统的野外试验,讨论了试验系统的设计、安装和资料收集,分析了试验过程中的水分平衡、污水灌溉过程中各种污染物的变化、积累和运动,为进一步优化利用此类系统提供了基础数据。研究结果表明,文中所提出的污水回用与污水处理相结合的系统,结合高强度的作物种植,可以处理高负荷的污水,排水中氮磷的浓度明显减少。

关键词：污水灌溉铵态氮硝态氮 FILTEr系统

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The effect of electric vehicle energy storage on the transition to renewable energy

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Green Energy and Intelligent Transportation 2023年第1期2卷 16-25页

作者： Efstathios E.Michaelides Viet n.D.nguyen Dimitrios n.Michaelides Department of Engineering TCUFort WorthTX76132USA University Wisconsin-Madison MadisonWIUSA

The most viable path to alleviate the Global Climate Change is the substitution of fossil fuel power plants for electricity generation with renewable energy *** substitution requires the development of very large energy storage capacity,with the inherent thermodynamic irreversibility of the storage-recovery ***,the world experiences a significant growth in the numbers of electric vehicles with large batteries.A fleet of electric vehicles is equivalent to an efficient storage capacity system to supplement the energy storage system of the electricity *** based on the hourly demand-supply data of ErCOT,a very large electricity grid,show that a fleet of electric vehicles cannot provide all the needed capacity and the remaining capacity must be met by *** though the storage capacity of the batteries is close to 1–2%of the needed storage capacity of the grid,the superior round-trip storage efficiency of batteries reduces the energy dissipation associated with the storage and recovery processes by up to 38%and the total hydrogen storage capacity by up to 50%.The study also shows that anticipated improvements in the round-trip efficiencies of batteries are almost three times more effective than improvements in hydrogen storage systems.

关键词： Fossil fuel substitution Decarbonization Electric vehicles Energy storage Vehicle to grid Batteries

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“反介入”战役及制胜要素——《反介入战争》第三章(下)

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兵器 2024年第10期 56-65页

作者： [美]萨姆·j·坦格里迪吴志丹(译) 不详

“反介入”战役的类型要素兰德公司的研究报告《深入龙潭》是战役类型研究方法的代表。其主要研究方法是通过分析中国关于《高技术条件下的局部战争》的著作,得出中国认为目前可能遇到的作战类型。本书中出现的区域战争就是这里所说的... 详细信息

“反介入”战役的类型要素兰德公司的研究报告《深入龙潭》是战役类型研究方法的代表。其主要研究方法是通过分析中国关于《高技术条件下的局部战争》的著作,得出中国认为目前可能遇到的作战类型。本书中出现的区域战争就是这里所说的局部战争。中国人民解放军首要担心的就是地区外力量的介入(例如美国武装部队),因此将其军事发展的重点放在“反介入”能力上。

关键词：兰德公司局部战争中国人民解放军战役第三章介入

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A numerical Study of Temporal Mixing Layer with Three-Dimensional Mortar Spectral Element Method

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Chinese Physics Letters 2011年第6期28卷 187-189页

作者： ZHAnG Xu LIU jin-Hong jonathan W.n Institute of Fluid Physics China Academy of Engineering PhysicsMianyang 621900 Mechanical Department University of WyomingLaramieUSA

We investigate a set of well-posed interface conditions of viscous fluxes of navier–Stokes equations,extend them to three-dimensional navier–Stokes equations and successfully study a temporally turbulent mixing *** evolution of a large vortex structure and the non-dimensional statistical quantities in the mixing layer are numerically *** span-wise energy spectrum of the mixing layer exhibits wide band features,which means that the simulation generates the desired amount of small *** results show that too many small scales are present due to insufficient dissipation and the amount of large scales is low,indicating too much dissipation for large-scale structures.

关键词： layer mixing dissipation

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Microstructure, properties and hot workability of M300 grade maraging steel

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Defence Technology（防务技术） 2018年第1期14卷 51-58页

作者： K.V.A.Chakravarthi n.T.B.n.Koundinya S.V.S.narayana Murty B.nageswara rao Materials and Mechanical Entity Vikram Sarabhai Space Centre research scholar Department of Mechanical Engineering K L University Department of Metallurgical Engineering and Materials Science Indian Institute of Technology Department of Mechanical Engineering K L University

This paper presents isothermal uniaxial compression test results of M300 grade maraging steel over a wide range of temperatures(900 e1200℃) and strain rates(0.001 e100 s^(-1)) to examine hot deformability and concurrent microstructural evolution. Processing map is generated and indicated the optimum processing parameters in the temperature range of 1125℃-1200℃ and strain rate range of 0.001 e0.1 s^(-1). High values of the efficiency of power dissipation, microstructural observations and EBSD results indicate softening mechanism to be the occurrence of dynamic recrystallisation. Material constants in a constitutive relation are evaluated from the flow stress data useful in computer modelling.

关键词： Activation energy Constitutive relation Hot deformation M300 grade maraging steel Processing map

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Plant Cover and Soil Biochemical Properties in a Mine Tailing Pond Five Years After Application of Marble Wastes and Organic Amendments

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Pedosphere 2012年第1期22卷 22-32页

作者： r.ZOrnOZA A.FAZ D.M.CArMOnA S.KABAS S.MArTínEZ-MArTíInEZ j.A.ACOSTA Sustainable Use Managementand Reclamation of Soil and Water Research Group.Department of Agrarian Science and Technology.Technical University of Cartagena.Paseo Alfonso XIII5230203 Cartagena.Murcia(Spain) Universidad Pontificia Bolivariana.Environmental research Group.Circular 1a no.70-01.Medelín(Colombia)

Tailing ponds pose environmental hazards, such as toxic metals which can contaminate the surroundings through wind and water erosions and leaching. Various chemical and biochemical properties, together with extractable and soluble metals were measured five years after reclamation of a polluted soil affected by former mining activities. This abandoned mine site contains large amounts of Fe-oxyhydroxides, sulphates, and heavy metals. As a consequence, soils remain bare and the soil organic matter content is low （〈 3 g kg-1）. Marble waste, pig manure and sewage sludge were applied in 2004. Plant cover and richness, and soil chemical, biochemical and biological parameters were analysed five years later. results showed that all soil biochemical properties as well as vegetation cover and richness were higher in treated soils than in the untreated contaminated plots （control）, although organic matter, pH values and extractable metals concentrations were similar among treatments. Soluble cadmium and zinc were lower in the amended plots than in control.

关键词： hydrolase activities metal pollution microbial biomass organic amendments remediation

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Weak-strong uniqueness for the compressible navier-Stokes equations with a hard-sphere pressure law

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Science China Mathematics 2018年第11期61卷 2003-2016页

作者： Eduard Feireisl Yong Lu Antonín novotny Institute of Mathematics Academy of Sciences of the Czech Republic Department of Mathematics Nanjing University IMATH University of Toulon

We consider the navier-Stokes equations with a pressure function satisfying a hard-sphere *** means the pressure,as a function of the density,becomes infinite when the density approaches a finite critical *** some structural constraints imposed on the pressure law,we show a weak-strong uniqueness principle in periodic spatial *** method is based on a modified relative entropy inequality for the *** main difficulty is that the pressure potential associated with the internal energy of the system is largely dominated by the pressure itself in the area close to the critical *** a result,several terms appearing in the relative energy inequality cannot be controlled by the total energy.

关键词： navier-Stokes equations hard-sphere pressure weak-strong uniqueness

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Modular-integrative modeling: a new framework for building brain models that blend biological realism and functional performance

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national Science review 2024年第05期 13-16页

作者： Mario Senden Sacha j.van Albada Giovanni Pezzulo Egidio Falotico Ibrahim Hashim Alexander Kroner Anno C.Kurth Pablo Lanillos Vaishnavi narayanan Cyriel Pennartz Mihai A.Petrovici Lea Steffen Tonio Weidler rainer Goebel Department of Cognitive neuroscience Maastricht University Maastricht Brain Imaging Centre Maastricht University Institute of neuroscience and Medicine(InM-6) and Institute for Advanced Simulation(IAS-6) and jArA-Institut Brain Structure-Function relationships(InM-10) Jülich Research Center Institute of Zoology University of Cologne Institute of Cognitive Sciences and Technologies The Bio robotics Institute Scuola Superiore Sant'Anna rWTH Aachen University Donders Institute for Brain Cognition and BehaviorRadboud University Cognitive and Systems neuroscience Group Swammerdam Institute for Life Sciences University of Amsterdam Department of Physiology University of Bern FZI research Center of Information Technology

To cope with the immense complexity of the brain, neuroscientific research often focuses on isolated brain structures or circumscribed perceptual, cognitive or motor functions [1]. This reductionist approach overlooks the intricate and multifaceted interplay among various structural and functional *** instance, even simple movements require the coordinated activation of numerous neuronal populations across multiple brain regions [2].

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