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Polygeneration Study of Low-to-medium Enthalpy Geothermal Reservoirs in mexico

Journal of Thermal Science 2021年第3期30卷 1077-1087页

作者： CHÁVEZ Oscar GODÍNEZ francisco Tecnológico Nacional de méxico/I.T.Chihuahua.Av.Tecnológico 2909 C.P.31310ChihuahuaChihuahuaMéxico Instituto de Ingeniería Universidad Nacional Autónoma de MéxicoUNAMC.U.Ciudad de MéxicoC.P.04510México Polo Universitario de Tecnología Avanzada Universidad Nacional Autónoma de MéxicoVía de la Innovación No.410Autopista Monterrey-Aeropuertokm.10 PIITC.P.66629Apodaca Nuevo LeónMéxico

This study combines the thermodynamic analysis of a polygeneration system along with the numerical modelling of the thermal behavior of geothermal reservoirs in mexico to exploit their *** reservoir was modeled as a porous medium assuming a five-spot well configuration and local thermal *** heat conduction-convection along with the Laplace equations were solved to compute temperature distributions,the useful life and the optimum distance between injection-extraction *** predicted temperature and pressure of the geothermal fluid at the outlet of the reservoir were exploited in the polygeneration system consisting of:(1)a Rankine cycle,(2)an absorption refrigeration cycle,and(3)a heat *** developed approach allows calculating both the optimal distance between injection-extraction wells and the global(utilization)efficiency of six arrangements(each composed by a reservoir connected to a polygeneration system)by assuming that reservoirs have a lifespan of 30 *** also show that:(a)due to the low efficiency of the Rankine cycle,very little thermal energy is converted into electrical one;(b)not only the temperature and the size are important when evaluating the power production performance of reservoirs,but also the permeability plays a fundamental role;(c)the first law efficiency of the polygeneration system ranges from 41.9%to 43.7%;(d)the utilization efficiency of the six arrangements lies in the range between 25.8%and 31%.

关键词： polygeneration system geothermal reservoir local thermal equilibrium low-to-medium enthalpy

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In search for the “idyllic” animal model to evaluate ocular pathologies and translate new therapies to improve human health

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Neural Regeneration Research 2022年第12期17卷 2697-2699页

作者： francisco m.Nadal-Nicolás Kiyoharu J.miyagishima Wei Li Retinal Neurophysiology Section National Eye InstituteNational Institutes of HealthBethesdaMDUSA

The retina is a highly specialized neural tissue that encodes information of vision,a vital sensory modality for most *** the retina also contributes to other non‐image‐forming signals(*** of circadian clocks),vision chiefly enables animals to interpret and navigate their environment(despite the diverse variety of species and lifestyles;Baden et al.,2020)and also to interact with other ***,features such as high visual resolution and color discrimination are important for interactive behaviors like prey capture and also for social animals,including primates,that establish a dominance *** vertebrates,the laminar structure of the retina is notably *** photoreceptor layer(rods and cones)initiates the process of converting light energy into nerve impulses by absorbing photons and transferring the signals to interneurons.

关键词： laminar enable absorbing

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A Note on Residue Formulas for the Euler Class of Sphere Fibrations

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Chinese Annals of mathematics,Series B 2011年第4期32卷 615-618页

作者： francisco Gómez RUIZ Departamento de Algebra Geometría y Topología Universidad de Málaga Campus Universitario de Teatinos 29071 Málaga Spain

This paper presents a definition of residue formulas for the Euler class ot eohomology-oriented sphere fibrations ε. If the base of ε is a topological manifold, a Hopf index theorem can be obtained and, for the smoo... 详细信息

关键词： Euler class Sphere fibration Hopf index theorem Residue formulas

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Plant peroxisomes at the crossroad of NO and H2O2 metabolism

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Journal of Integrative Plant Biology 2019年第7期61卷 803-816页

作者： francisco J.Corpas Luis A.del Río José m.Palma Group of Antioxidants Free Radicals and Nitric Oxide in Biotechnology Food and Agriculture Department of Biochemistry Cell and Molecular Biology of Plants Estación Experimental del Zaidín CSIC

Plant peroxisomes are subcellular compartments involved in many biochemical pathways during the life cycle of a plant but also in the mechanism of response against adverse environmental *** organelles have an active nitro-oxidative metabolism under physiological conditions but this could be exacerbated under stress ***,peroxisomes have the capacity to proliferateand also undergo biochemical adaptations depending on the surrounding cellular *** important characteristic of peroxisomes is that they have a dynamic metabolism of reactive nitrogen and oxygen species(RNS and ROS)which generates two key molecules,nitric oxide(NO)and hydrogen peroxide(H2O2).These molecules can exert signaling functions by means of post-translational modifications that affect the functionality of target molecules like proteins,peptides or fatty *** review provides an overview of the endogenous metabolism of ROS and RNS in peroxisomes with special emphasis on polyamine and uric acid metabolism as well as the possibility that these organelles could be a source of signal molecules involved in the functional interconnection with other subcellular compartments.

关键词： Plant peroxisomes NO H2O2 metabolism

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Resveratrol attenuates metabolic,sperm,and testicular changes in adult Wistar rats fed a diet rich in lipids and simple carbohydrates

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Asian Journal of Andrology 2019年第2期21卷 201-207页

作者： Fabiana A de Oliveira Waldemar S Costa francisco J B Sampaio Bianca m Gregorio Urogenital Research Unit Biomedical CenterState University of Rio de JaneiroRio de Janeiro 20551-030Brazil

High-fat diets affect male reproduction and sexual ***,we evaluated the effects of prolonged resveratrol administration on the metabolic,sperm,and testicular parameters of rats fed a cafeteria *** Wistar rats were divided at weaning into control(Cv n=20)and cafeteria(CAF,n=16)*** 3 months,half of them were given daily supplementations of resveratrol(C-R,n=10;CAF-R,n=8)at a dosage of 30 mg kg-1 body mass for 2 *** were killed at 5 months of age,and blood,spermatozoa,and testes were collected for further *** were analyzed by one-way ANOVA,and Pmoted hyperglycemia(Pment with resveratrol reversed this condition(Pm viability and motility,while resveratrol improved these parameters(Fmorphology,the height of the seminiferous epithelium was reduced in the CAF group compared with that of the C group(P=0.0007).Spermatogenic cell proliferation was also reduced in the CAF group compared with that of the C ***,the CAF-R showed an increase in cell proliferation rate compared with that of the untreated CAF group(P=0.0024).Although it did not modify body mass,the consumption of a CAF diet promoted hyperglycemia,adverse testicular morphology remodeling,and abnormal sperm,which were attenuated by treatment with resveratrol,thus suggesting a protective effect of this antioxidant on spermatogenesis.

关键词： cafeteria diet morphology resveratrol spermatozoa testicle

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macular atrophy after combined intravitreal triamcinolone and photodynamic therapy to treat choroidal neovascularization

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International Journal of Ophthalmology(English edition) 2010年第2期3卷 161-163页

作者： Jose m Ruiz-moreno Javier A montero Pedro Amat francisco Lugo Department of Ophthalmology Albacete Medical SchoolUniversity of Castilla La ManchaSpain Alicante Institute of Ophthalmology Vitreo-Retinal Unit.Spain Pio del Rio Hortega University Hospital Ophthalmology UnitValladolidSpain

AImTo report the appearance of choriocapillaris atrophy after combined high dose intravitreal triamcinolone acetonide (TA) and photodynamic therapy (PDT) to treat choroidal neovascularization (CNV) associated with age... 详细信息

关键词： age related macular degeneration choriocapillaris atrophy intravitreous triamcinolone photodynamic therapy retinal pigment epithelium atrophy

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Control of APN/CD13 and NEP/CD10 on sperm motility

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Asian Journal of Andrology 2010年第6期12卷 899-902页

作者： Nerea Subiran francisco m. Pinto Ekaitz Agirregoitia Luz Candenas Jon Irazusta Department of Physiology Faculty of Medicine and Dentistry University of the Basque Country Leioa Bizkaia 48940 Spain Chemical Research Institute - CSiC University of Seville Seville 41092 Spain

Aminopeptidase N （APN/CD13） and neutral endopeptidase （NEP/CD10） are enzymes present in human sperm cells and involved in regulation of sperm motility of noncapacitated spermatozoa. We investigated the involvement of APN/CD 13 and NEP/CD 10 in motility and in kinematic parameters of human capacitated spermatozoa. Sperm cells isolated by a discontinuous Percoll gradient （40%-80%） followed up by swim-up techniques were incubated with the APN/CD 13 -specific inhibitor, leuhistin （100 μmol L^-1）, and the NEP/CD 10-specific inhibitor, thiorphan （1 μmol L^-1）. The complete inhibition of both APN/CD 13 and NEP/CD 10 improved sperm motility. Spermatozoa incubated with the APN/CD13-specific inhibitor lenhistin showed asymmetrical trajectories, whereas sperm trajectories were more regular after treatment with the NEP/CD 10-specific inhibitor thiorphan. In conclusion, APN/CD 13 and NEP/CD 10 modulate the motility of capacitated spermatozoa, although each of the enzymes seems to participate in the control of different aspects of sperm motility. Therefore, both inhibitors may be useful for sperm activation at different functional stages of spermatozoa.

关键词： APN/CD13 human hypcractivation kinematic motility NEP/CD10 sperm

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Impact of ZnSO_(4)^(-)and ZnO Nanoparticles on Seed Germination and Seedling Growth of Lettuce

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Phyton-International Journal of Experimental Botany 2023年第6期92卷 1831-1840页

作者： adalberto Benavides-mendoza Rebeca Betancourt-Galindo Nazario francisco-francisco Departamento de Horticultura Universidad Autónoma Agraria Antonio NarroSaltillo25315México Departamento de materiales Avanzados Centro de Investigación en Química AplicadaSaltillo25294México Departamento de Agricultura Sustentable y Protegida Universidad Tecnológica de TehuacánTehuacán75859México

micronutrient nanoparticles(NPs)are currently an option for chemical fertilization and biostimulation in ***,there is little information on the phytotoxic or biostimulatory effects of NPs at low concentrations of some elements,such as *** this study,the effect of low concentrations of Zn oxide(ZnO)NPs on germination,growth variables,and nutritional attributes of lettuce(Lactuca sativa L.)was evaluated in comparison to Zn *** lettuce seeds were treated with ZnSO_(4)^(-)×7H_(2)O and ZnO NPs at Zn molar concentrations of 1×10^(−3),5×10^(−3),1×10^(−4),5×10^(−4),1×10^(−5),5×10^(−5),1×10^(−6),and 5×10^(−6).The seeds treated with ZnSO4−at 5×10^(−6)registered the highest radicle length,73%more than the control *** seeds treated with ZnSO4−at 5×10^(−3)registered the lowest values,with 50%less than the control *** NPs at 5×10^(−6)significantly increased content of chlorophyll A and B and total *** results indicate the possible existence of a mechanism related to the intrinsic nanoparticle properties,especially at low concentrations.

关键词： micronutrients biostimulation nanotechnology nanofertilizers germination chlorophyll total phenols

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The quest for selective Cs^(+) transport in plants

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molecular Plant 2021年第4期14卷 552-554页

作者： manuel Nieves-Cordones francisco Rubio Departamento de Nutricion Vegetal Centro de Edafologia y Biologia Aplicada del Segura-CSICCampus de Espinardo30100 MurciaSpain

Nuclear accidents have led to the release to the environment of radioactive isotopes,mainly radioactive cesium(Cs^(+)),contaminating large areas of soil for very long periods of time(Burger and Lichtscheidl,2018).These contaminated soils contain^(134)Cs^(+)and^(137)Cs^(+)radioisotopes that are readily accumulated into plants and that,through the food chain,are transferred to animals and humans,causing important health problems(Burger and Lichtscheidl,2018).

关键词： readily release transport

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SPLITTING SCHEmES FOR A NAVIER-STOKES-CAHN-HILLIARD mODEL FOR TWO FLUIDS WITH DIFFERENT DENSITIES

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Journal of Computational mathematics 2014年第6期32卷 643-664页

作者： francisco Guillen-Gonzalez Giordano Tierra Departamento de Ecuaciones Diferenciales y Andlisis Numgrico and ImUS Universidad de Sevilla 41012 Seville Spain Department of Applied and Computational mathematics and Statistics University of Notre Dame Notre Dame IN 46556 USA

In this work, we focus on designing efficient numerical schemes to approximate a ther- modynamically consistent Navier-Stokes/Cahn-Hilliard problem given in [3] modeling the mixture of two incompressible fluids with different densities. The model is based on a diffuse-interface phase-field approach that is able to describe topological transitions like droplet coalescense or droplet break-up in a natural way. We present a splitting scheme, decoupling computations of the Navier-Stokes part from the Cahn-Hilliard one, which is unconditionally energy-stable up to the choice of the potential approximation. Some nu- merical experiments are carried out to validate the correctness and the accuracy of the scheme, and to study the sensitivity of the scheme with respect to different physical pa- rameters.

关键词： Two-phase flow Diffuse-interface phase-field Cahn-Hilliard Navier-Stokes,Energy stability Variable density mixed finite element Splitting scheme.

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