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Benefits of a root fungal endophyte on physiological processes and growth of the vulnerable legume tree Prosopis chilensis(Fabaceae)

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Journal of Plant Ecology 2019年第2期12卷 264-271页

作者： Marcia González-Teuber Alejandro Urzúa Andrea Morales Cristian Ibáñez Luisa Bascuñán-Godoy Max Planck Partner Group Departamento de Ciencias del AmbienteUniversidad de Santiago de ChileAv.Libertador Bernardo O'Higgins 3363SantiagoChile Instituto de Investigación Multidisciplinario en Ciencias y Tecnología Universidad de La SerenaAv.Raúl Bitrán 1305La SerenaChile Laboratorio de Química Ecológica Universidad de Santiago de ChileAv.Libertador Bernardo O'Higgins 3363SantiagoChile Departamento de Biología Universidad de La SerenaAv.Raúl Bitrán 1305La SerenaChile Departamento de Botánica Universidad de ConcepciónBarrio Universitario s/nConcepciónChile

Aims Desertification is a major concern in arid and semi-arid regions *** interactions between vulnerable plant spe-cies and associated microbial symbionts may have important appli-cations for conservation and restoration strategies in affected *** In this study,we evaluated the root-associated fungal endophyte community in Prosopis chilensis,a vulnerable and threatened arid-adapted tree of northern *** benefits in terms of physiologi-cal performance and plant growth were also *** fungi were isolated from asymptomatic roots by the culture method for molecular identification of the 18S rRnA *** dominant fungal endophyte(Penicillium sp.)in the community was later used in inoculation experiments to assess its effect on maximum quan-tum efficiency of photosystem II(_(PSII)),(Fv/Fm)actual _(PSII) efficiency(Φ_(PSII)),and non-photochemical quenching(nPQ).Total sugars,starch content,malonaldehyde(MDA),nitrogen content(%)and growth traits were also *** Findings WhereasΦ_(PSII) increased significantly in endophyte-inoculated plants,nPQ was found to *** effect of endophyte inocula-tion on sugars and MDA was detected,but starch content,leaf nitro-gen content,number of leaves and shoot biomass were found to *** revealed that inoculation of endophytic Penicillium fungal isolate can provide significant physiological benefits to the host plant *** presence resulted in greater _(PSII) efficiency and higher leaf nitrogen and carbohydrate content,enhancing host plant *** findings highlight the importance of consider-ing the fungal endophyte community of this vulnerable species as an important tool to the design of further revegetation and conserva-tion programs.

关键词： root endophytic fungi PSII efficiency nitrogen content plant growth promotion starch accumulation arid habitats

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Effect of the chelating agents on bio-sorption of hexavalent chromium using Agave sisalana fibers

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Chinese Journal of Chemical Engineering 2018年第5期26卷 984-992页

作者： H. Bendjeffal A. Djebli H. Mamine T. Metidji M. Dahak n. Rebbani Y. Bouhedja Higher School of Technological Education ENSET-Skikda 21000 Algeria Laboratory of Water Treatment and Valorization of Industrial Wastes Badji-Mokhtar University P.O. Box 12 Annaba 23000 Algeria Centre de Recherche Scientifique et Technique en Analyses Physico-Chimiques BP 384 Siege ex-Pasna Zone Industrielle Bou-Ismail CP 42004 Tipaza Algeria

The current work is focused on the study of the bio-sorption of hexavalent chromium from aqueous solution using sisal natural fiber(Agave sisalana) treated by various chelating agents(ligands) such as urea(UR),thiocarbamide(TC), ethylenediaminetetraacetic acid(EDTA), and diphenyl carbazide(DCZ). The fiber treatments were investigated using Fourier Transform Infrared Spectroscopy(FTIR) and Scanning electron microscope(SEM). The kinetics of chromium bio-sorption was studied in batch presses under the effect of some physicochemical factors such as the nature of chelating agent(F@UR, F@TC, F@DCZ, and F@EDTA),adsorbent dose(2–10 g·L^(-1)), chromium initial concentration(100–500 mg·L^(-1)), solution pH(1–6), and batch temperature(20 ℃–50 ℃). This study resulted in an optimum adsorption at a chromium initial concentration of 100 mg·L^(-1), at pH 2, and at 20 ℃. The obtained results showed clearly that the treatment with chelating agent boosts the adsorptive capacity of A. sisalana fibers Cr(VI) 10.9 mg·g^(-1) to 58.6 mg·g^(-1). The modeling study showed that the adsorption kinetics obey the pseudo-second-order model, with an R2 in the range of 0.991 and 0.999. The bio-sorption isotherms followed the Langmuir model; the maximum uptake capacity of(F@n, F@UR,F@TC, F@DCZ, and F@EDTA) was found to be respectively, 12.3 mg·g^(-1), 25.33 mg·g^(-1), 28.73 mg·g^(-1),42.54 mg·g^(-1), and 61.45 mg·g^(-1). The determined adsorption thermodynamics parameters such as enthalpy,free energy, and entropy showed that the adsorption process is exothermic, spontaneous, and has a stable configuration.

关键词： Agave sisalana Bio-sorption Chelating agent Chromium(VI) Fibers

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Timing of surgery in Crohn’s disease: A key issue in the management

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World Journal of Gastroenterology 2008年第36期14卷 5532-5539页

作者： Rafael Alós Joaquín Hinojosa Servicio de Cirugía General Unidad de Coloproctología Hospital de Sagunto Valencia Spain Unidad de Digestivo Servicio de Medicina Interna Hospital de Sagunto Valencia Spain

The timing of the decision for operation in Crohn’s disease is based on an evaluation of the several factors such as the failure of medical treatment, complications due to the Crohn’s disease or to the farmacological therapy, development of dysplasia or cancer and growth retardation. A complete evaluation of these factors should result in operation timed to the patient’s best advantage, achieving maximal relief of symptoms with improvement of quality of life. Given the complexity and heterogeneity of the disease and the different options for treatment, is difficult to systematize when the optimal moment for the surgery is arrived. A very important factor in the management of Crohn’s disease is the multidisciplinary approach and the patient preference should be a significant factor in determining the choice of therapy. The surgery should be considered such another option in the sequential treatment of Crohn’s disease. We have analyzed the factors that are involved in the decision taking of the surgical treatment regarding to the experience and the published literature. When did the medical therapy fail? when is the appropriate moment to operate on the patient? Or which complications of Crohn’s disease need a surgery? These are some of the questions we will try to answer.

关键词： Crohn's disease Surgical treatment Medical therapy

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Mechanical and Electrical Properties of the Ternary Ag-Sb-Zn System

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Acta Metallurgica Sinica(English Letters) 2014年第1期27卷 47-54页

作者： M.Premovi D.Mini D.Manasijevi Vladan osovi D.Zivkovi I.Dervisevi n.Talijan Faculty of Technical Science University in PristinaKosovska MitrovicaSerbia Technical Faculty University of Belgrade Institute of Chemistry Technology and MetallurgyUniversity of Belgrade

This paper presents comparative review of experimental and thermodynamic assessment of ternary Ag-Sb-Zn system. Isothermal section of the Ag-Sb-Zn system at 300 ~C has been calculated by CALPHAD method using ther- modynamic parameters from literature. Microstructural analysis of a number of alloys was carried out by scanning electron microscopy and optical microscopy, whereas chemical composition of observed phases was analyzed using energy- dispersive X-ray spectroscopy. Hardness of selected alloys from four vertical sections was determined using Brinell hardness test and additionally by micro Vickers hardness test. Electrical conductivity of a number of alloys in the ternary Ag-Sb-Zn system was experimentally determined. Good overall agreement between experimental and calculated values was obtained.

关键词： Ag-Sb-Zn system Isothermal section Microstructure Brinell hardness Micro Vickers hardness: Electrical conductivitv

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Ion emission from warm dense matter produced by irradiation with a soft x-ray free-electron laser

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Matter and Radiation at Extremes 2024年第1期9卷 71-84页

作者： Josef Krása Tomás Burian Vera Hájková Jaromír Chalupský Šimon Jelínek Katerina Frantálová Michal Krupka Zuzana Kuglerová Sushil Kumar Singh Vojtech Vozda Ludek Vysín MichalŠmíd Pablo Perez-Martin Marion Kühlman Juan Pintor Jakub Cikhardt Matthias Dreimann Dennis Eckermann Felix Rosenthal Sam M.Vinko Alessandro Forte Thomas Gawne Thomas Campbell Shenyuan Ren YuanFeng Shi Trevor Hutchinson Oliver Humphries Thomas Preston Mikako Makita Motoaki nakatsutsumi Xiayun Pan Alexander Köhler Marion Harmand Sven Toleikis Katerina Falk Libor Juha Department of Radiation and Chemical Physics Institute of PhysicsCzech Academy of SciencesNa Slovance 218221 Prague 8Czech Republic Laser Plasma Department Institute of Plasma PhysicsCzech Academy of SciencesZa Slovankou 318200 Prague 8Czech Republic Department of Surface and Plasma Science Faculty of Mathematics and PhysicsCharles University in PragueV Holesovi ckách 218000 Prague 8Czech Republic Department of Physical Electronics Faculty of Nuclear Science and Engineering PhysicsCzech Technical University in PragueV Holesovi ckách 218000 Prague 8Czech Republic Helmholtz-Zentrum Dresden-Rossendorf Bautzner Landstraße 40001328 DresdenGermany DESY Photon Science Notkestraße 85D-22607 HamburgGermany Institut de Minéralogie de Physique des Matériaux et de CosmochimieUMR 7590–UPMC/CNRS/IRD/MNHNSorbonne Université4 place Jussieu75005 ParisFrance Department of Physics Faculty of Electrical EngineeringCzech Technical University in PragueTechnická216627 Prague 6Czech Republic Center for Soft nanoscience University of MünsterBusso-Peus-Straße 10D-48149 MünsterGermany Department of Physics Clarendon LaboratoryUniversity of OxfordParks RoadOxford OX13PUUnited Kingdom Central Laser Facility STFC Rutherford Appleton LaboratoryDidcot OX110QXUnited Kingdom Lawrence Livermore national Laboratory 7000 East AvenueLivermoreCalifornia 94550USA European XFEL GmbH Holzkoppel 4D-22869 SchenefeldGermany Technische Universität Dresden 01062 DresdenGermany

We report on an experiment performed at the FLASH2 free-electron laser(FEL)aimed at producing warm dense matter via soft x-ray isochoric *** the experiment,we focus on study of the ions emitted during the soft x-ray ablation process using time-of-flight electron multipliers and a shifted Maxwell–Boltzmann velocity distribution *** find that most emitted ions are thermal,but that some impurities chemisorbed on the target surface,such as protons,are accelerated by the electrostatic field created in the plasma by escaped *** morphology of the complex crater structure indicates the presence of several ion groups with varying *** find that the ion sound velocity is controlled by the ion temperature and show how the ion yield depends on the FEL radiation attenuation length in different materials.

关键词： electrostatic emitted chemi

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Some stromatic pyrenomycetous fungi from northern ***,Camillea and Hypoxylon(Xylariaceae)

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Fungal Diversity 2012年第4期55卷 65-76页

作者： L.n.Vasilyeva S.L.Stephenson K.D.Hyde A.H.Bahkali Institute of Biology and Soil Science Far East Branch of the Russian Academy of SciencesVladivostok 690022Russia University of Arkansas FayettevilleAR 72701USA Institute of Excellence in Fungal Research Mae Fah Lung UniversityChiang Rai 57100Thailand School of Science Mae Fah Lung UniversityChiang Rai 57100Thailand Botany and Microbiology Department College of ScienceKing Saud UniversityRiyadh 11442Saudi Arabia

Fourteen species of stromatic pyrenomycetous fungi(family Xylariaceae)collected in northern Thailand are *** of these(Biscogniauxia lithocarpi,Camillea malaysiensis ***,Hypoxylon juventuterubrum,***,***,and ***)are described as taxa new to *** of these taxa are provided,and they are compared with similar taxa known from the Western Hemisphere.

关键词： Ascomycota SE Asia Taxonomy Xylariales

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DYnAMIC AnALYSIS OF A GRADIEnT ELASTIC POLYMERIC FIBER

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Acta Mechanica Solida Sinica 2013年第1期26卷 9-20页

作者： K.Y.Xu K.A.Alnefaie n.H.Abu-Hamdeh K.H.Almitani E.C.Aifantis Department of Mechanics Shanghai University Department of Mechanical Engineering King Abdulaziz University Lab of Mechanics and Materials Polytechnic SchoolAristotle University

A dynamic analysis of an elastic gradient-dependent polymeric fiber subjected to a periodic excitation is considered. A nonlinear gradient elasticity constitutive equation with strain- dependent gradient coefficients is first derived and the dispersive wave propagation properties for its linearized counterpart are briefly discussed. For the linearized problem a variational formulation is also developed to obtain related boundary conditions of both classical （standard） and non-classical （gradient） type. Analytical solutions in the form of Fourier series for the fiber＇s displacement and strain fields are provided. The solutions depend on a dimensionless scale parameter （the diameter to length radio d = D/L） and, therefore, size effects are captured.

关键词： gradient elasticity polymeric fibers periodic excitations size effects

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Bioinspired membranes for multi-phase liquid and molecule separation

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Science China Chemistry 2019年第1期62卷 14-23页

作者： Jingchong Liu Zhimin Cui Lanlan Hou Dianming Li Yuan Gao Li Shuai Jing Liu Jian Jin nü Wang Yong Zhao Key Laboratory of Bioinspired Smart Interfacial Science and Technology of Ministry of Education Beijing Key Laboratory of Bioinspired Energy Materials and Devices School of Chemistry Beijing Advanced Innovation Center for Biomedical Engineering Beihang University i-Lab CAS Center for Excellence in Nanoscience and CAS Key Laboratory of Nano-Bio Interface Suzhou Institute of Nano-Tech and Nano-Bionics Chinese Academy of Sciences

Water pollution is a serious problem around the world. It causes the lack of clean drinking water and brings risks to human *** technology has become a competitive candidate to treat the contaminated wastewater due to its high separation efficiency and low energy consumption. In this review, we introduce the recent development of several kinds of bioinspired separation membranes, involving the membrane design and applications. We emphasize the multi-phase liquid separation membranes inspired from nature with special wettability applied for oil/water separation, organic liquids mixture separation, and emulsion separation. After separating multi-phase liquids using these membranes, small molecule pollutants still exist in singlephase liquid. Therefore, we also expand the scope to small molecule-scale separation membranes, such as the nacre-like graphene oxide separation membrane and other nanofiltration membranes. Summary and outlook concerning the future development of separation membranes are also introduced briefly.

关键词： bioinspired superhydrophobic superwettability nanofibers separation membrane

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neural network Modeling and Prediction of Surface Roughness in Machining Aluminum Alloys

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Journal of Computer and Communications 2016年第5期4卷 1-9页

作者： n. Fang n. Fang P. Srinivasa Pai n. Edwards College of Engineering Utah State University Logan USA

Artificial neural network is a powerful technique of computational intelligence and has been applied in a variety of fields such as engineering and computer science. This paper deals with the neural network modeling and prediction of surface roughness in machining aluminum alloys using data collected from both force and vibration sensors. Two neural network models, including a Multi-Layer Perceptron (MLP) model and a Radial Basis Function (RBF) model, were developed in the present study. Each model includes eight inputs and five outputs. The eight inputs include the cutting speed, the ratio of the feed rate to the tool-edge radius, cutting forces in three directions, and cutting vibrations in three directions. The five outputs are five surface roughness parameters. Described in detail is how training and test data were generated from real-world machining experiments that covered a wide range of cutting conditions. The results show that the MLP model provides significantly higher accuracy of prediction for surface roughness than does the RBF model.

关键词： Artificial neural network Modeling Prediction Surface Roughness Machining Aluminum Alloys

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new Framework Based on Fusion Information from Multiple Landslide Data Sources and 3D Visualization

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Journal of Earth Science 2020年第1期31卷 159-168页

作者： Fermin Villalpando Jose Tuxpan Jose Alfredo Ramos-Leal Simon Carranco-Lozada Division of Applied Geosciences Scientific and Technological Research Institute of San Luis PotosiSan Luis Potosi 78216Mexico Catedras-COnA CyT National Council for Science and TechnologyCDMX 03940Mexico Centre for Scientific and Technological Studies National Polytechnic InstituteGuanajuato 37358Mexico

Recent monitoring techniques employ multiple sources of information for the characterization of the phenomenon to be studied, being the coupling and adjustment of multi-source data one of the first challenges to consider and solve. The authors propose a new framework of the multi-source and multi-temporal data-oriented fusion for the characterization of landslide events. The main objective is to generate 3D virtual models(in the form of dense point clouds) and feed them back with the characteristic of soil and subsoil information. The scheme consists of three main steps. The first one is on-site data collection(geological characterization, geophysical measurements, GPS measurements, and UAV/drone mapping). The second step is generation of a high-resolution 3D virtual model(~1-inch spatial resolution) from the frames acquired through the UAV using the structure of motion(SfM) processing;the developed virtual model is optimized with GPS measurements to minimize geolocation error and eliminate distortions. The last step is assembling of the acquired data in the field and densified point cloud considering the different nature of the data, re-escalating procedure and the information stacking layer.

关键词： 3D model natural risk geophysical/geological techniques unmanned aerial vehicle fusion data

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