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Resilience-Driven Road Network Retrofit optimization Subject to Tropical cyclones Induced Roadside Tree Blowdown

International Journal of Disaster Risk Science 2021年第1期12卷 72-89页

作者： Fuyu Hu Saini Yang Russell g.Thompson Theoretical Division Los Alamos National LaboratoryLos AlamosNM 87545USA Key Laboratory of Environmental change and Natural Disaster Ministry of EducationBeijing Normal UniversityBeijing 100875China State Key Laboratory of Earth Surface Processes and Resource Ecology Beijing Normal UniversityBeijing 100875China Academy of Disaster Reduction and Emergency Management Ministry of Civil Affairs&Ministry of EducationBeijing Normal UniversityBeijing 100875China Faculty of geographical Science Beijing Normal UniversityBeijing 100875China School of Engineering The University of MelbourneMelbourne 3052Australia

This article focuses on decision making for retrofit investment of road networks in order to alleviate severe consequences of roadside tree blowdown during tropical *** consequences include both the physical damage associated with roadside trees and the functional degradation associated with road networks.A trilevel,two-stage,and multiobjective stochastic mathematical model was developed to dispatch limited resources to retrofit the roadside trees of a road *** the model,a new metric was designed to evaluate the performance of a road network;resilience was considered from robustness and recovery efficiency of a road *** proposed model is at least a nondeterministic polynomialtime hardness(NP-hard)problem,which is unlikely to be solved by a polynomial time ***-optimal solutions for this problem can be obtained by a proposed trilevel *** random forest method was employed to transform the trilevel algorithm into a singlelevel algorithm in order to decrease the computation *** tree retrofit of a provincial highway network on Hainan Island,china was selected as a case area because it suffers severely from tropical cyclones every year,where there is an urgency to upgrade roadside trees against tropical *** found that roadside tree retrofit investment significantly alleviates the expected economic losses of roadside tree blowdown,at the same time that it promotes robustness and expected recovery efficiency of the road network.

关键词： Hainan Island Nondominated sorting genetic algorithm II(NSgA II) Random forest method Road network resilience Roadside tree retrofit Tropical cyclones

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Electric-Arc Plasma Installation for Preparing Nanodispersed carbon Structures

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Plasma Science and Technology 2008年第4期10卷 484-490页

作者： P.STEFANoV D.gARLANoV g.VISSoKoV ISMA Ltd.Samokovsko chaussee Str. 1738 SofiaBulgaria Institute of catalysis Bulgarian Academy of Sciences1113 SofiaBulgaria

An electric-arc plasma installation operated in the hidden anode arrangement is constructed and used for the preparation of carbon nanostructures. A contracted plasma arc generated by a plasma torch using an inert gas is used as heat source. The average mass temperature of arc is higher than 10^4 K, while its power density, which is directly transferred onto the electrode （anode）, is - 2 kW/mm^2. The anode contact area formed on the electrode moves against the arc by way of shifting the electrode and is hidden completely in the interior of plasma gas stream moving towards it. As a result of both the direct plasma attack and the opposite movement of streams in the hidden anode contact area, a temperature higher than 6000 K is reached. Thus, intensive vaporization takes place, which forms a saturated plasma-gas-aerosol phase of the initial material of electrode （anode）. This gas phase is mixed in and carried by the plasma stream. over that mixed plasma stream, a controlled process of quenching （fixation） is carried out by twisted turbulent fluid streams. After the fixation, the resultant carbon nano-structures are caught by a filter and collected in a bunker.

关键词： electric-arc plasma installation nanodispersed carbon structures

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Nano energy for miniaturized systems

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Nano Materials Science 2021年第2期3卷 107-112页

作者： Minshen Zhu Feng Zhu oliver g.Schmidt Institute for Integrative Nanosciences Leibniz IFW Dresden01069DresdenGermany State Key Laboratory of Polymer Physics and chemistry Changchun Institute of Applied ChemistryChinese Academy of Sciences130022ChangchunChina Material Systems for Nanoelectronics Chemnitz University of Technology09107ChemnitzGermany center for Materials Architectures and Integration of Nanomembranes(MAIN)Chemnitz University of Technology09126ChemnitzGermany School of Science Dresden University of TechnologyGermany

Skin mountable electronic devices are in a high-speed development at the crossroads of materials science,electronics,and computer *** functions,such as sensing,actuating,and computing,are integrated into a soft electronic device that can be firmly mounted to any place of human *** advanced electronic devices are capable of yielding abilities for us whenever they are needed and even expanding our abilities beyond their natural *** the great promise of skin mounted electronic devices,they still lack satisfactory power supplies that are safe and *** Perspective discusses the prospects of the development of energy storage devices for the next generation skin mountable electronic devices based on their unique requirements on flexibility and miniaturized size.

关键词： Micro-energy-storage devices Wearability Flexibility Electronics

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A Theoretic Interpretation of Movement of the cusp Equatorward Boundary

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空间科学学报 2005年第5期25卷 412-418页

作者： J. B. cao A. Leonovich g. c. Zhou Z. X. Liu H. Reme I. Dandouras center for Space Science and Applied Research Chinese Academy of Sciences Beijing 100080 China china-Russia Joint Research center on Space Weather Beijing 100080 China centre d＇Etude Spatiale des Rayonnements 31028 Toulouse France

A preliminary model is proposed to describe quantitatively the position and movement of cusp equatorward boundary. This integrated model, consisting of an empirical model of the magnetopause and a compressed dipolar model of open/closed field line, connects quantitatively the solar wind conditions, subsolar magnetopause and cusp equatorward boundary. It is shown that the increasing solar wind dynamic pressure and the increasing southward Interplanetary Magnetic Field (IMF) component drive the magnetopause to move inward and the cusp equatorward. This model is adopted to interpret quantitatively the cusp movement of August 14, 2001 observed by cluster. The results show that the subsolar magnetopause moved earthward from 10.7 Re to 9.0Re during the period of 002300-002800 UT, and correspondingly the cusp equatorward boundary shifted equatorward. The observations of cluster c1 and c4 show the cusp equatorward boundary that cluster c1 and c4 were crossing during same interval moved equatorward by 4.6°. The cusp equatorward boundary velocity computed in the theoretical model (10.7 km/s) is in good agreement with the observed value(9.4km/s) calculated from the data of cIS of cluster c4 and c1.

关键词：太阳风赤道边界线磁场

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Irritable bowel syndrome and small intestinal bacterial overgrowth:Meaningful association or unnecessary hype

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World Journal of gastroenterology 2014年第10期20卷 2482-2491页

作者： Uday c ghoshal Deepakshi Srivastava Department of gastroenterology Sanjay Gandhi Post Graduate Institute of Medical Sciences Lucknow 226104 India

Irritable bowel syndrome (IBS) is a common condition characterized by abdominal pain or discomfort, bloating, and altered stool form and passage. Small intestinal bacterial overgrowth (SIBo) is a condition in which there is overgrowth of bacteria in small bowel in excess of 105 colony forming units per milliliter on culture of the upper gut aspirate. Frequency of SIBo varied from 4%-78% among patients with IBS and from 1%-40% among controls. Higher frequency in some studies might be due to fallacious criteria [post-lactulose breath-hydrogen rise 20 PPM above basal within 90 min (early-peak)]. glucose hydrogen breath test (gHBT) has a low sensitivity to diagnose SIBo. Hence, studies based on gHBT might have under-estimated frequency of SIBo. Therefore, it is important to analyze these studies carefully to evaluate whether the reported association between IBS and SIBo is over or under-projected. This review evaluates studies on association between SIBo and IBS, discordance between different studies, their strength and weakness including methodological issues and evidence on therapeutic manipulation of gut flora on symptoms of IBS.

关键词： glucose hydrogen breath test Lactulose hydrogen breath test Functional bowel disease Dysbiosis gut flora

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Dissipative free-surface solver for potential flow around hydrofoil distributed with doublets

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Applied Mathematics and Mechanics(English Edition) 2012年第11期33卷 1467-1480页

作者：陈志敏 W. g. PRIcE Ship Science University of Southampton

A doublet integral equation is formulated for the two-dimensional dissipative potential flow around a hydrofoil submerged below a free-water surface. The free-water surface is assumed to involve energy dissipation, and thus it is the source of damping. A doublet panel method is developed from incorporation of the dissipative green function approach and the doublet distributions on the hydrofoil surface. Numerical computations are implemented, and the derived numerical results are in good agreement with analytic solutions and experimental measurements.

关键词： panel method potential flow free-surface wave energy dissipation hydro-foil

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cFD model simulation of bubble surface area flux in flotation column reactor in presence of minerals

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International Journal of Mining Science and Technology 2018年第6期28卷 999-1007页

作者： A.R.Sarhan J.Naser g.Brooks Department of Mechanical and Product Design Engineering Swinburne University of TechnologyHawthornVictoria 3122Australia Department of Mechanical Engineering University of Anbar RamadiAnbar 31001Iraq

Bubble surface area flux(S_b) is one of the main design parameter in flotation column that typically employed to describe the gas dispersion properties, and it has a strong correlation with the flotation rate constant. There is a limited information available in the literature regarding the effect of particle type,density, wettability and concentration on Sb. In this paper, computational fluid dynamics(cFD) simulations are performed to study the gas–liquid–solid three-phase flow dynamics in flotation column by employing the Eulerian–Eulerian formulation with k-e turbulence model. The model is developed by writing Fortran subroutine and incorporating then into the commercial cFD code AVL FIRE, *** paper studies the effects of superficial gas velocities and particle type, density, wettability and concentration on Sband bubble concentration in the flotation column. The model has been validated against published experimental data. It was found that the cFD model was able to predict, where the response variable as indicated by R-Square value of 0.98. These results suggest that the developed cFD model is reasonable to describe the flotation column reactor. From the cFD results, it is also found that Sb decreased with increasing solid concentration and hydrophobicity, but increased with increasing superficial gas velocity. For example, approximately 28% reduction in the surface area flux is observed when coal concentration is increased from 0 to 10%, by volume. While for the same solid concentration and gas flow rate, the bubble surface area flux is approximately increased by 7% in the presences of sphalerite.A possible explanation for this might be that increasing solid concentration and hydrophobicity promotes the bubble coalescence rate leading to the increase in bubble size. Also, it was found that the bubble concentration would decrease with addition of hydrophobic particle(i.e., coal). For instance, under the same operating conditions, approximately 23% reduc

关键词： cFD Froth flotation Bubble surface area flux Solid properties Bubble concentration

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Helicobacter pylori:a foodborne pathogen?

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World Journal of gastroenterology 2018年第31期24卷 3472-3487页

作者： Nicoletta c Quaglia Angela Dambrosio Department of Emergency and organ Transplantation Section of Veterinary Clinic and Animal ProductionUniversity of Bari "Aldo Moro"

Helicobacter pylori(H. pylori) is an organism that is widespread in the human population and is sometimes responsible for some of the most common chronic clinical disorders of the upper gastrointestinal tract in humans, such as chronic-active gastritis, duodenal and gastric ulcer disease, low-grade B-cell mucosa associated lymphoid tissue lymphoma of the stomach, and gastric adenocarcinoma, which is the third leading cause of cancer death worldwide. The routes of infection have not yet been firmly established, and different routes of transmission have been suggested, although the most commonly accepted hypothesis is that infection takes place through the faecal-oral route and that contaminated water and foods might play an important role in transmission of the microorganism to humans. Furthermore, several authors have considered H. pylori to be a foodborne pathogen because of some of its microbiological and epidemiological characteristics. H. pylori has been detected in drinking water, seawater, vegetables and foods of animal origin. H. pylori survives in complex foodstuffs such as milk, vegetables and ready-to-eat foods. This review article presents an overview of the present knowledge on the microbiological aspects in terms of phenotypic characteristics and growth requirements of H. pylori, focusing on the potential role that foodstuffs and water may play in the transmission of the pathogen to humans and the methods successfully used for the detection of this microorganism in foodstuffs and water.

关键词： Helicobacter pylori Viable but nonculturable state Foodborne pathogen Food Water Animal reservoirs culture methods Molecular methods

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Eastern Dharwar craton,India:continental lithosphere growth by accretion of diverse plume and arc terranes

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geoscience Frontiers 2012年第3期3卷 225-240页

作者： c.Manikyamba Robert Kerrich National geophysical Research Institute Council of Scientific and Industrial ResearchHyderabad 500 007India Department of geological Sciences University of SaskatchewanSaskatoonSaskatchewan S7N 5E2Canada

Abstract greenstone belts of the eastern Dharwar craton, India are reinterpreted as composite tecto- nostratigraphic terranes of accreted plume-derived and convergent margin-derived magmatic sequences based on new high-precision elemental data. The former are dominated by a komatiite plus Mg-tholeiitic basalt volcanic association, with deep water siliciclastic and banded iron formation （BIF） sedimentary rocks. Plumes melted at 〈90 km under thin rifted continental lithosphere to preserve intrao- ceanic and continental margin aspects. Associated alkaline basalts record subduction-recycling of Me- soarchean oceanic crust, incubated in the asthenosphere, and erupted coevally with Mg basalts from a heterogeneous mantle plume. Together, komatiites-Mg basalts-alkaline basalts plot along the Phanero- zoic mantle array in Th/Yb versus Nb/Yb coordinate space, representing zoned plumes, establishing that these reservoirs were present in the Neoarchean mantle. convergent margin magmatic associations are dominated by tholeiitic to calc-alkaline basalts compo- sitionally similar to recent intraoceanic arcs. As well, boninitic flows sourced in extremely depleted mantle are present, and the association of arc basalts with Mg-andesites-Nb enriched basalts-adakites documented from cenozoic arcs characterized by subduction of young （〈20 Ma）, hot, oceanic litho- sphere. consequently, cenozoic style ＂hot＂ subduction was operating in the Neoarchean. These diverse volcanic associations were assembled to give composite terranes in a subduction-accretion orogen at -2.7 ga, coevally with a global accretionary orogen at -2.7 ga, and associated orogenic gold mineralization.

关键词： continental lithospheregrowth Zoned plume Subduction-accretion Neoarchean mantle geodynamics Eastern Dharwar craton

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A likely role for the PH-domain containing protein, PEPP2/ PLEKHA5, at the membrane-microtubule cytoskeleton interface

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BIocELL 2013年第3期37卷 55-61页

作者： Yi ZoU Timothy c coX School of Molecular Biosciences University of AdelaideAdelaideSouth Australia and Department of Anatomy&Developmental BiologyMonash UniversityClaytonVictoriaAustralia

PH(pleckstrin homology)domains are well known to bind membrane phosphoinositides with different specificities and direct PH domain-containing proteins to discrete subcellular compartments with assistances of alternative binding *** domain-containing proteins have been found to be involved in a wide range of cellular events,including signalling,cytoskeleton rearrangement and vesicular *** we showed that a novel PH domain-containing protein,PEPP2(also known as PLEKHA5),displays moderate phosphoinositide binding *** length PEPP2 was observed to variably associate with both the plasma membrane and *** membrane-associated PEPP2 nucleated at cell-cell contacts and the leading edge of migrating *** of PEPP2 increased membrane microviscosity,indicating a potential role for PEPP2 in regulating function of microtubule-dependent membrane functions.

关键词： microtubule membrane phosphoinositide microviscosity PH domain

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