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Journal of Environmental Sciences 2015年第12期27卷 158-167页

作者： Xanel Vecino Rosa Devesa-Rey Salvador Villagrasa Jose M.Cruz ana b.moldes Chemical Engineering Department School of Industrial Engineering (EEI)University of VigoCampus As Lagoas-Marcosende Defense University Center Naval AcademyUniversity of Vigo Materials Engineering Department School of Industrial Engineering (EEI)University of VigoCampus As Lagoas-Marcosende

In this work a comparative bioadsorption study between a biocomposite consisting of hydrolysed vineyard pruning waste entrapped in calcium alginate spheres and non entrapped vineyard residue was carried *** have demonstrated that the biocomposite based on lignocellulose-calcium alginate spheres removed 77.3% of dyes,while non entrapped lignocellulose eliminated only removed 27.8% of colour *** experimental data were fitted to several kinetic models（pseudo-first order,pseudo-second order,Chien-Clayton model,intraparticle diffusion model and bangham model）; being pseudo-second order the kinetic model that better described the adsorption of dyes onto both *** addition,a morphological study（roughness and shape） of alginate-vineyard biocomposite was established under extreme conditions,observing significant differences between hydrated and dehydrated alginate-vineyard *** techniques used to carry out this morphological study consisted of scanning electron microscopy（SEM）,perfilometry and 3D surface analysis.

关键词： Immobilized alginate-vineyard Dyes Kinetic studies Roughness Spherical shape

Impacts of PI3K/protein kinase b pathway activation in reactive astrocytes: from detrimental effects to protective functions

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Neural Regeneration Research 2025年第4期20卷 1031-1041页

作者： Ramón Pérez-Núñez María Fernanda González ana María Avalos Lisette Leyton Cellular Communication Laboratory Programa de Biología Celular y MolecularCenter for Studies on ExerciseMetabolism and Cancer(CEMC)Instituto de Ciencias Biomédicas(ICBM)Facultad de MedicinaUniversidad de ChileSantiagoChile Advanced Center for Chronic Diseases(ACCDiS) Faculty of Chemical and Pharmaceutical Sciences&Faculty of MedicineUniversidad de ChileSantiagoChile Instituto de Ciencias biomédicas Facultad de Ciencias de la SaludUniversidad Autónoma de ChileSantiagoChile

Astrocytes are the most abundant type of glial cell in the central nervous *** injury and inflammation,astrocytes become reactive and undergo morphological and functional *** on their phenotypic classification as A1 or A2,reactive astrocytes contribute to both neurotoxic and neuroprotective responses,***,this binary classification does not fully capture the diversity of astrocyte responses observed across different diseases and *** analysis has revealed that reactive astrocytes have a complex landscape of gene expression profiles,which emphasizes the heterogeneous nature of their *** actively participate in regulating central nervous system inflammation by interacting with microglia and other cell types,releasing cytokines,and influencing the immune *** phosphoinositide 3-kinase(PI3K)/protein kinase b(AKT)signaling pathway is a central player in astrocyte reactivity and impacts various aspects of astrocyte behavior,as evidenced by in silico,in vitro,and in vivo *** astrocytes,inflammatory cues trigger a cascade of molecular events,where nuclear factor-κb serves as a central mediator of the pro-inflammatory ***,we review the heterogeneity of reactive astrocytes and the molecular mechanisms underlying their *** highlight the involvement of various signaling pathways that regulate astrocyte reactivity,including the PI3K/AKT/mammalian target of rapamycin(mTOR),αvβ3 integrin/PI3K/AKT/connexin 43,and Notch/PI3K/AKT *** targeting the inactivation of the PI3K/AKT cellular signaling pathway to control reactive astrocytes and prevent central nervous system damage,evidence suggests that activating this pathway could also yield beneficial *** dual function of the PI3K/AKT pathway underscores its complexity in astrocyte reactivity and brain function *** review emphasizes the importance of employing astrocyte-exclusive models to underst

关键词： inflammation integrins neuroprotective neurotoxic phosphatidylinositol 3-kinase reactive astrocytes signal transduction Thy-1(CD90)

bendable tube-shaped supercapacitor based on reduced graphene oxide and Prussian blue coated carbon fiber yarns for energy storage

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Journal of Energy Chemistry 2018年第3期27卷 866-873页

作者： Mohd.Khalid ana M.b.Honorato Department of Macromolecular Science and Engineering Case Western Reserve University

Carbon fiber yarns（CFY） are promising as a new type of flexible building blocks for the construction of flexible architectures for the energy storage applications. The main hurdle with CFY is how to make them high energy and power capable by using economically and environmentally viable materials. Here,we report reduced graphene oxide（r GO） and Prussian blue（Pb） coated CFY, derived from a facile electrochemical process at room temperature for supercapacitor electrodes. The Pb coated CFY and r GO coated CFY electrodes exhibit the excellent gravimetric capacitance of 339 F/g and 160.2 F/g, respectively, in aqueous KCl electrolyte in three-electrode cell configuration. When we coupled these electrodes inside the flexible plastic tube and separated by the electrolyte wet filter paper in order to construct flexible architecture, the resulting device delivers excellent specific energy of 52.1 Wh/kg and 26.5 Wh/kg with offering specific power of 3100 W/kg and 14400 W/kg respectively, under a wide operating potential of1.8 V with excellent rate capability. The device shows high tolerance towards bending, and retained its efficiency to the capacitance after being bent at an angle of 360° for 200 bending cycles.

关键词： Carbon fiber yarns bendable supercapacitor Energy density Power density

Ni/Al Intermetallics Plasma Transferred Arc Processing

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材料热处理学报 2004年第05B期25卷 948-951页

作者： Veronica A. b. Almeida ana Sofia C. M. D'Oliveira Master student - PIPE Federal University of Parana Curitiba/BrazilMechanical Engineering Department Federal University of Parana Curitiba/Brazil

In-situ alloy development during surface processing allows for a limitless materials selection to protect components exposed to severe service conditions. In fact surface alloying offers the possibility to strengthen surface components with alloys that would not be possible to process otherwise. This work used Plasma transferred arc (PTA) hardfacing for surface alloying. Different amounts of aluminium powder, 5-25%, were added to a Ni based superalloy, from Hastealloy C family, in the atomized form. The mixture was homogeneized in a ball mill and PTA deposited on carbon steel substrate. The influence of different processing parameters on the final surface alloy was evaluated as current intensity and depositing velocity were varied. Coatings were characterized by optical and scanning electronic microscopy, X-ray diffraction and Vickers microhardness profiles, under a 500g load. Results showed that PTA hardfacing is an adequate surface alloying. For the conditions tested increasing hardness was obtained by solid solution for the lower amounts of Al added and due to the new intermetallic phases for the richer Al mixture.

关键词： PTA合金等离子转移电弧 Ni/Al金属互化物表面处理

Clinical outcomes with a new microincisional diffractive multifocal IOL

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Eye and Vision 2015年第1期2卷 7-15页

作者： Jorge L Alió Alfredo Vega-Estrada ana b Plaza-Puche Vissum Corporation AlicanteSpain Division of Ophthalmology Universidad Miguel HernándezAlicanteSpain Avda de Denia s/n Edificio Vissum03016 AlicanteSpain

background:To evaluate the refractive outcomes and the optical performance as well as the quality of life in patients implanted with a new diffractive multifocal intraocular lens(IOL).Methods:Prospective,clinical study including 41 cases of patients who underwent cataract surgery and were divided in two groups:group 1,including 20 eyes implanted with the multifocal IOL SeeLens MF(Hanita Lenses,Israel);group 2,21 eyes implanted with the Acrysof SA60AT *** acuity,defocus curve,intraocular aberrations,contrast sensitivity function and quality of life were assessed during a follow up period of 6 ***:Significant improvement was observed in the uncorrected distance visual acuity(UDVA)and corrected distance visual acuity(CDVA)in both groups(pbetter results in terms of uncorrected near visual acuity(UNVA)and distance-corrected near visual acuity(DCNVA)(pboth groups showed better visual acuities for the multifocal IOL group in defocus levels from-3.0 D to-1.50 D(p≤0.01).At 6 months,there was a significant reduction of the internal higher order aberrations(p≤0.04).A significant increase in scotopic contrast sensitivity was detected for 6 cycles/°spatial frequency during follow up(p=0.04),but no significant changes were observed for the rest of spatial frequencies(p≥0.06).Visual Functioning Index(VF-14)questionnaire showed that patients reported high levels of satisfaction when performing daily ***:The SeeLens MF IOL is able to successfully restore distance,near and intermediate visions after cataract *** also provides functional intermediate vision with optimal intraocular optical quality.

关键词： Visual visual IOL

Protein glycation:a wolf in sweet sheep’s clothing behind neurodegeneration

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Neural Regeneration Research 2024年第5期19卷 975-976页

作者： ana b.Uceda Francisco Leal-Pérez Miquel Adrover Institut Universitari d’Investigacióen Ciències de la Salut(IUNICS) Institut d’InvestigacióSanitària Illes balears(IdISba) Departament de Química Universitat de les Illes BalearsCtraPalma de MallorcaSpain

At the beginning of the 16th century,Paracelsus coined the maxim:“the dose makes the poison”.This principle can be applied to all living organisms,including organs and *** brain and its glial and neuronal cells are ... 详细信息

关键词： organs sheep sweet

Water balance prediction in stormwater infiltration basins using 2-D modeling:An application to evaluate the clogging process

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International Journal of Sediment Research 2018年第4期33卷 371-384页

作者： Patrice Cannavo anas Coulon Sylvain Charpentier béatrice béchet Laure Vidal-beaudet Agrocampus Ouest Institute for Research on Urban Sciences and Techniques (IRSTV) Research Unit Environmental Physics and Horticulture Research(EPHor) bretagne Loire University French Institute of Science and Technology for Transport Development and Networks (IFSTTAR) IRSTV Geotechnical engineeringEnvironment Natural hazards and Earth sciences Department (GERS) Water and Environment Laboratory (LEE)

Sustainable urban drainage systems are built along roads and in urban areas to collect urban runoff and avoid flooding, and to filter water pollutants. Sediment collected by runoff is deposited in the stormwater basin and progressively reduces water infiltration efficiency, leading to the clogging of the basin. To help stormwater basin managers and stakeholders better understand and predict clogging rates in order to elaborate maintenance plans and schedules, water transport prediction models are necessary. However,because of the heterogeneous sediment hydrodynamic properties inside the stormwater basin, a twodimensional(2-D) water flow model is required to predict water levels and possible overflow as accurately as possible. Saturated hydraulic conductivity(Ks) and sediment water retention curves were measured in the overall sediment layer of the stormwater basin, in addition to sediment layer thickness and organic matter content(11 sampling points). Sediment depth was used to predict organic matter(OM) content, and the OM was used to predict Ks. Water height in the basin was modeled with the HYDRUS-2 D model by taking into account the sediment hydrodynamic properties distribution. The HYDRUS-2 D model gave a satisfactory representation of the measured data. Scenarios of the hydraulic properties of stormwater basin sediment were tested over time, and hydraulic resistance, R, was calculated to assess the stormwater basin performance. Presently, after 20 years of functioning, the stormwater basin still ensures efficient water infiltration, but the first outflow(Hydraulic resistance,R > 24 h)) is expected to appear in the next 5 years, and clogging(R > 47 h) in the next 13 years. This 2-D water balance model makes it possible to integrate the hydrodynamic heterogeneity of a stormwater basin. It gives interesting perspectives to better predict 2-D/3-D contaminant transport.

关键词： 2-D water transport Hydraulic conductivity Sediment water retention Stormwater basin efficiency

The Convex-Set Algebra and Intersection Theory on the Toric Riemann–Zariski Space

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Acta Mathematica Sinica,English Series 2022年第3期38卷 465-486页

作者： ana María bOTERO Institut Für Mathematik Universität RegensburgUniversitätsstr.3193053RegensbergGermany

In previous work of the author,a top intersection product of toric b-divisors on a smooth complete toric variety is *** is shown that a nef toric b-divisor corresponds to a convex set and that its top inetersection number equals the volume of this convex *** goal of this article is to extend this result and define an intersection product of sufficiently positive toric b-classes of arbitrary *** this,we extend the polytope algebra of McMullen to the so called convex-set algebra and we show that it embeds in the toric b-Chow *** this way,the convex-set algebra can be viewed as a ring for an intersection theory for sufficiently positive toric *** an application,we show that some Hodge type inequalities are satisfied for the convex set algebra.

关键词： Convex geometry intersection theory toric varieties b-Chow groups Riemann–Zariski spaces

Modeling of biodiesel production: Performance comparison of box–behnken, face central composite and full factorial design

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Chinese Journal of Chemical Engineering 2019年第7期27卷 1690-1698页

作者： Vlada b.Veljkovic ana V. Velickovic Jelena M. Avramovic Olivera S. Stamenkovic University of Nis Faculty of TechnologyBulevar oslobodenja 124Leskovac 16000Serbia Research&Development Center "Alfatec" Bulevar Nikole Tesle 63/5Nis 18000Serbia

The performances of the response surface methodology(RSM)in connection with the box–behnken,face central composite or full factorial design(bbD,FCCD or FFD,respectively)were compared for the use in modeling of the NaOH-catalyzed sunflower oil *** influence of temperature,catalyst loading,and ethanol-to-oil molar ratio(EOMR)on fatty acid ethyl esters(FAEE)content was *** three multivariate strategies were efficient in the statistical modeling and optimization of the influential process variables but bbD and FCCD realization involved less number of experiments,generating smaller costs,requiring less work and consuming shorter time than the corresponding *** three designs resulted in the same optimal catalyst loading(1.25%of oil)and EOMR(12:1).The reduced two-factorinteraction(2 FI)models based on the bbD and FCCD defined a range of optimal reaction temperature(25℃–75℃)and 25℃,respectively while the same model based on the 33 FFD appointed 75℃.The predicted FAEE content of about 97%–98.0%was close to the experimentally obtained FAEE content of about 97.0%–97.6%under the optimal reaction ***,the simpler bbD or FCCD might successfully be applied for statistical modeling of biodiesel production processes instead of the more extensive,more laborious and more expensive FFD.

关键词： biodiesel box-behnken design Model reduction Face central composite design Full factorial design Optimization

Unveiling the controversial mechanism of reversible Na storage in TiO2 nanotube arrays： Amorphous versus anatase TiO2

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Nano Research 2017年第8期10卷 2891-2903页

作者： Federico bella ana b. Munoz-Garcia Giuseppina Meligrana Andrea Lamberti Matteo Destro Michele Pavone Claudio Gerbaldi GAME Lab CHENERGY Group Department of Applied Science and Technology - DISAT Politecnico di Torino Corso Duca degli Abruzzi 24 10129 Torino Italy Department of Chemical Sciences University of Naples Fedefico II Via Cintia 21 University Campus of Monte Sant'Angelo 80126 Napoli Italy MPMNT Group Department of Applied Science and Technology - DISAT Politecnico di Torino Corso Duca degli Abruzzi 24 10129 Torino Italy LITHOPS S.r.l. Strada del Portone 61 10137 Torino Italy

Due to their inherent safety, low cost, and structural stability, TiO2 nanostructures represent a suitable choice as anode materials in sodiumion batteries. In the recent years, various hypotheses have been proposed regarding the actual mechanism of the reversible insertion of sodium ions in the TiO2 structure, and previous reports are often controversial in this respect. Interestingly, when tested as binder- and conducting additive-free electrodes in laboratory-scale sodium cells, amorphous and crystalline （anatase） TiO2 nanotubular arrays obtained by simple anodic oxidation exhibit peculiar and intrinsically different electrochemical responses. In particular, after the initial electrochemical activation, anatase TiO2 shows excellent rate capability and very stable long-term cycling performance with larger specific capacities, and thus a clearly superior response compared with the amorphous counterpart. To obtain deeper insight, the present materials are thoroughly characterized by scanning electron microscopy and ex situ X-ray diffraction, and the insertion of sodium ions in the TiO2 bulk phases is systematically modeled by density functional theory calculations. The present results may contribute to the development of more systematic screening approaches to identify suitable active materials for highly efficient sodium-based energy storage systems.

关键词： sodium battery TiO2 nanotube array anode modeling insertion mechanism