检索结果-南通市图书馆

A regionalized IO-model to value seasonal recreational ecosystem services in a mountain National Park in Spain

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Mountain Science 2022年第1期19卷 211-227页

作者： Víctor martin BARROSO Mónica de CASTRO-PARDO Pascual FERNÁNDEZ MARTÍNEZ João C.AZEVEDO Department of Applied Economics I and history and economic institutions Faculty of Law and Social SciencesUniversidad Rey Juan CarlosCampus of VicálvaroTulipanMóstoles 28933Spain Department of Financial and Actuarial Economics and Statistics-Statistics and Operational Research Complutense University of MadridCampus of SomosaguasPozuelo de Alarcon 28223Spain Centro de Investigação de Montanha Instituto Politécnico de BragançaCampus de Santa ApolóniaBragança 5300-253Portugal

Recreational Ecosystem Services(RES)are among the most frequently evaluated ecosystem *** are seen as a major opportunity for sustainable development in areas of high ecological value resulting from the presence of emblematic species,habitats or scenery,often integrated in conservation areas,in particular in mountain areas affected by depopulation,rising environmental risks and ***,the assessment of RES has been based on Contingent Valuation and Choice Experiments,methods with limitations related to their ***,Input-Output(IO)models provide a very accurate and effective way of valuation of RES with regional information regarding interindustry *** data on nature tourist expenditure may be only available annually,tourism inflows have a strong seasonal behavior,which impacts the profitability of several local economic *** this paper,we firstly constructed a novel regionalized IO-model based on Cross-Industry Location Quotients using employment data and,secondly,based on Monte Carlo simulation,we estimated nature tourist expenditure monthly using data on nature tourism *** method allowed for a more precise RES evaluation,estimating direct,indirect and induced monthly economic impacts of nature-based *** method was applied to the Ordesa and Monte Perdido(OMP)National Park in the Spanish *** estimate the average tourist expenditure,we collected and analyzed spending on commerce,hospitality and restaurants,leisure,and transport of 385 *** suggest that using a regionalized IO model leads to a considerable reduction of over-estimation of the economic impact of tourist expenditure estimated by conventional *** into consideration the direct,indirect and induced effects of tourist expenditure in 2016-2018,the total annual output effect in the OMP National Park amounted to€208.8 million,while the total income effect amounted to€86.29 ***,a total of

关键词： Input-Output Monte Carlo Simulation Location quotients Recreational Ecosystem Services Nature tourism Sustainable mountain development

Parametric Modeling of Static Three-Dimensional Problem of Buried Pipeline through the Coupling between a Finite Cylindrical Shell Element and Special Boundary Elements

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Journal of Civil Engineering and Architecture 2015年第6期9卷 701-714页

作者： Raimundo A. Menezes Junior Moises M. Salvino carlos L. dos Santos Allan R. Albuquerque Jailson M.Ferreira Dawy Keyson Carlo R. Lima martin Alternative and Renewable Energy Center Federal University of Paraiba Joao Pessoa 58051-900 Brazil Technology Center Federal University of Paraiba Joao Pessoa 58051-900 Brazil Federal Institute of Education Science and Technology of Paraiba Joao Pessoa 58051-900 Brazil Education Center Federal University of Paraiba Joao Pessoa 58051-900 Brazil

This work deals with an application in parametric modeling of problems regarding pipelines buried in static system, written in C＋＋ using ObjectARX functions. The application is fully integrated with AutoCAD through *** and *** libraries where the stages of pre-processing, processing and post-processing are done in AutoCAD sotlware environment itself without having to export data to another processing environment. The analysis processing is done by functions whose algorithms are based on the solution of the coupling between the FEM （finite element method） and the BEM （boundary element method）. The representation of the homogeneous pipeline is made by the FEM using a finite element in the form of a cylindrical panel called CYS （cylindrical shell）, developed from the homogeneous isotropic model proposed initially by Djoudi Bahai, who uses the philosophy of the assumed deformation model （assumed strain based model）. The soil is taken to be a continuum infinite or semi-infinite elastic solid patterned by BEM where special boundary elements are proposed with curved surface or curved edges to represent the soil-structure interaction mainly in the areas of contact with the pipeline.

关键词： Finite elements boundary elements AutoCAD

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

加速育种对材性的影响

桉树科技 1988年第1期 38-43页

作者： Yara Kiemi Ikemori Francisco carlos Gilli martin Bruce J.Zobel 李琼初

本文探讨选优和采用插条法繁殖桉树优树,采用高产无性系作为纸浆生产是有可能的, 这一作品叙述优树选择标准和确定木材基本密度和纸浆得率的方法。同时,还讨论母树的材质与其生长在不同土壤类型上的无性系植株的材质之间的关系。强调“... 详细信息

本文探讨选优和采用插条法繁殖桉树优树,采用高产无性系作为纸浆生产是有可能的, 这一作品叙述优树选择标准和确定木材基本密度和纸浆得率的方法。同时,还讨论母树的材质与其生长在不同土壤类型上的无性系植株的材质之间的关系。强调“无性系×土壤”的互相作用,说明这种互相作用是怎样影响材质,以至影响木材消耗率的。简介阿拉克鲁兹林业项目始于1967年。在里约北部,巴西东海岸的伊斯怕里多与圣多州这两个区域营造桉树林。在阿拉克鲁兹境内的林区,面积为5.5万公顷,另一区域在圣马多斯和巴拉两县境内,面积为4.5万公顷。桉树总种植纯面积为7万公顷,其余包括天然林,河湖道路和建筑。其纸浆厂于1978年10月投产,生产能力为45.6万吨/年桉树漂白纸浆。 1967～79年,主要种植种子来自巴西、津巴布韦和南非的巨桉。三年生时我们观察到群体间和群体内存在较大的基因差异,就从这些人工林中我们选择了优树,用作插条繁殖。选优

关键词：纸浆得率基本密度选优克鲁兹木材密度无性系植株蒸煮器纸浆生产木片源株材性

Hidden diversity of marine borderline lichens and a new order of fungi:Collemopsidiales(Dothideomyceta)

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Fungal Diversity 2016年第5期80卷 285-300页

作者： Sergio Pérez-Ortega Isaac Garrido-Benavent martin Grube Rocío Olmo Asunción de los Ríos Museo Nacional de Ciencias Naturales(CSIC) Serrano 115 dpdoE-28006 MadridSpain Real Jardín Botánico de Madrid(CSIC) Plaza Murillo 2E-28014 MadridSpain Institute of Plant Sciences University of GrazHolteigasse 6A-8010 GrazAustria Facultad de Ciencias Ambientales y Bioquímica Universidad de Castilla-La ManchaAvenida de Carlos III s/n45071 ToledoSpain

The fungal genus Collemopsidium comprises species that develop so-called borderline lichen symbioses with algae or *** with morphologically similar pyrenocarpous fungi it has been assigned to the family *** adscription of this family to higher taxonomic ranks remain *** sequence data of five nuclear genomic regions(nuLSU,nuSSU,tef1-α,rpb1 and rpb2)and onemitochondrial locus(mtSSU)we found that the studied representatives of this family are placed in the Dothideomyceta,yet relationships with the classes Dothideomycetes and Arthoniomycetes remain *** describe the new order Collemopsidiales to accommodate the genus Collemopsidium(paraphyletic as currently understood)and the lichenicolous genus *** five fungal fossils as calibrations points,we infer an age of c.230 Mya for the crown of *** on two molecular markers,we also provide insight into the global diversity of marine species of the genus *** to the species delimitation algorithm GMYC,c.26 putative species exist,far more than the six species recognized *** have confirmed this result by comparing the two alternative species models by means of Bayes factors,using path sampling and stepping-stone sampling algorithms to estimate the marginal likelihood of each ***,our observations suggest rock-boring ability evolved in parallel in the different lineages within this group of fungi.

关键词： Borderline lichens Dothideomycetes Endolithics.Lichen-forming fungi Lichenicolous fungi Boring ability Marine fungi Model comparison

Foliar Analysis as an Estimate on the Nutritional State of Conilon Coffee Plantations on Cambisoils

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Life Sciences 2014年第2期8卷 181-187页

作者： Alberto Perez Diaz Emesto Castaneda Hidalgo Salvador Lozano Trejo carlos Alberto Bustamante Gonzailez Ramon Antonio Rivera Espinosa Geraldo Rodriguez Ortiz Gloria Martha martin Alonso Cerelino RoblesPerez Guillermo Acosta Coutin Alberto Fernandez Turro Centro de Estudios de Cafe y Cacao Universidad de Guantanamo Guantanamo 95300 Cuba Instituto Tecnologico del Valle de Oaxaca Ex Hacienda de Nazareno Xoxocotlan 712320 Mexico Instituto de Investigaciones Agroforestales UCTB-Tercer Frente Santiago de Cuba 92700 Cuba Instituto Nacional de Ciencias Agricolas San Jose de las Lajas Mayabeque 32700 Cuba Universidad de Ciencias Pedagogicas "Raul Gomez Garcla " Guantanamo 95100 Cuba

The objective of this paper relies on the establishment of the sampling moment and the nutritional state of the species Conilon coffee （Coffea canephora） cultivated in Cambisoils. The effect of different rates of nitrogen fertilization was also studied in the leaves concentrations of N, at randomized complete block designs （N0= 0; N1 = 50; N2 = 100; N3 = 150 and N4 = 200 ***^-1 of N） in presence of P （40 ***^-1 of P2O5） and K （160 ***^-1 of K2O）, with four replicates. The samples were carried out in the months of March （flower blossoming stage）, June （fruits growing stage）, September （grain development） and December （maturation） in all treatments. Foliar analysis carried out in the month of June （fruits growing stage） for the purpose of establishing critical nutrient range values for N, settling down approaches of interpretation of the same one for the Conilon coffee plantations on Cambisoils. The biggest percentages in the yields are obtained with leaves containing N between 2.80% and 3.10%, a value below 2.80% N which they associated with indicative percentages of stable maximum yield that did not surpass the limits of the adequate nutrients supply.

关键词： Nitrogen fertilization critical nitrogen range Conilon coffee leaves concentrations of N.

Infrared fluorescence imaging of infarcted hearts with A@S nanodots

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2019年第4期12卷 749-757页

作者： Dirk H. Ortgies Angel Luis Garcia-Villalon Miriam Granado Sara Amor Emma martin Rodriguez Harrisson DA Santos Jingke Yao Jorge Rubio-Retama Daniel Jaque Nanobiology Group Instituto Ramon y Cajal de Investigacion Sanitaria IRYCIS Ctra. Colmenar km. 9.100 Madrid 28034 Spain Fluorescence Imaging Group Departamento de Fisica de Materiales - Facultad de Ciencias Universidad Autonoma de Madrid C/ Francisco Tomas y Valiente 7 Madrid 28049 Spain Fluorescence Imaging Group Departamento de Fisiologia - Facultad de Medicina Avda. Arzobispo Morcillo 2 Universidad Autonoma de Madrid Madrid 28029 Spain Fluorescence Imaging Group Departamento de Fisica Aplicada - Facultad de Ciencias Universidad Autonoma de Madrid C/ Francisco Tomas y Valiente 7 Madrid 28049 Spain Grupo de Nano-Fotonica e Imagens Instituto de Fisica Universidade Federal de Alagoas Maceio-AL 57072-900 Brazil Departamento de Quimica Fisica en Ciencias Farmaceuticas Facultad de Farmacia Plaza de Ramon y Cajal s/n Universidad Complutense de Madrid Madrid 28040 Spain

Ag2S nano dots have already bee n dem onstrated as promisi ng n ear-i nfrared (NIR-II, 1.0-1.45 pm) emitting nan oprobes with low toxicity, high penetration and high resolution for in vivo imaging of, for example, tumors and vasculature. In this work, we have systematically investigated the pote ntial applicati on of function alized Ag2S nano dots for accurate imaging of damaged myocardium tissues after a myocardial in farction in duced by either partial or global ischemia. Ag2S nano dots surface-function alized with the an giote nsin II peptide (ATI I) have show n over 10-fold enhanced binding efficiency to damaged tissues than non-specifically (PEG) functionalized Ag2S nanodots due to their interaction with the upregulated angiotensin II receptor type I (AT1R). It is demonstrated how the NIR-II images generated by ATII-functionalized Ag2S nanodots contain valuable information about the location and extension of damaged tissue in the myocardium allowing for a proper identification of the occluded artery as well as an in direct evaluati on of the damage level. The pote ntial applicati on of Ag2S nano dots in the n ear future for in vivo imaging of myocardial infarction was also corroborated by performing proof of concept whole body imaging experiments.

关键词： infrared imaging myocardial infarct Ag2S nanodots biological windows Langendorff heart

Effects of Imazethapyr-Based Herbicide Formulation in the Zebrafish (Danio rerio )Hepatocyte Cell Line (ZF-L): Cytotoxicity and Oxidative Stress

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Airfoil Roof in Buildings

Journal of Environmental Protection（环境保护） 2024年第6期 747页

作者： Edila Maria Kickhöfel Ferrer Milena Mattes Cerveira Pedro Henrique Flores Da Cruz Cleiton Jesus Andrade Pereira Lucas Moraes Berneira Claudio martin Pereira de Pereira Nathalia Stark Pedra Roselia Maria Spanevello Jean carlos Bauer Vieira Clarissa Piccinin Frizzo Mateus Tavares Kütter Janice Luehring Giongo Rodrigo de Almeida Vaucher

来源：博看期刊评论

在线全文

博看期刊

学校读者我要写书评

暂无评论

Journal of Civil Engineering and Architecture 2021年第7期15卷 343-348页

作者： carlos martin Walter Jorge Luis Lässig Faculty of Engineering Universidad Nacional del ComahueNeuquén 8300Argentina

In this paper an airfoil that is used on roofs was analyzed:Circular Arc *** JavaFoil program for the calculation of aerodynamic parameters of the simulated wing airfoil and small AR(aspect ratio)was used.A wing roof scale model was constructed,and it was tested in the wind tunnel of the Laboratory of Environmental Fluid Dynamics,Universidad Nacional del *** the model,the AR was equal to *** of the model was 32%.The tests were conducted at a Reynolds number of 1×10^(5).The curves of the lift coefficient versus angle of attack were obtained,and the pressure coefficient Cp was determined for each *** lift coefficients and the Cp values differ from the theoretical profile;this shows the importance of using the wind tunnel to obtain experimental data to achieve a good structural design.

关键词： Wind tunnel roofs airfoils aerodynamic loads

Effect of a hydrogymnastics program on the serum levels of high-sensitivity C-reactive protein amongst elderly women

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Health 2014年第1期6卷 80-85页

作者： Javier Arturo Hall-López Paulina Yesica Ochoa-Martínez Edgar Ismael Alarcón-Meza Fernando Israel Anaya-Jaramillo Ana María Miranda Botelho Teixeira José Moncada-Jiménez José carlos Ferreira-Reis Estélio Henrique martin Dantas Centre for Research in Human Movement Sciences University of Costa Rica San Jose Costa Rica Euro-American Network of Human Kinetics (REMH) Rio de Janeiro Brazil Laboratory of Human Motricity Biosciences (LABIMH) Federal University of State of Rio de Janeiro Rio de Janeiro Brazil Faculty of Sports Science and Physical Education University of Coimbra Coimbra Portugal School of Sports Autonomous University of Baja California (UABC) Mexicali Mexico Euro-American Network of Human Kinetics (REMH) Rio de Janeiro Brazil School of Sports Autonomous University of Baja California (UABC) Mexicali MexicoEuro-American Network of Human Kinetics (REMH) Rio de Janeiro Brazil

The aim of this study was to evaluate the effect of a hydrogymnastics training program on highsensitivity C-reactive protein in elderly women. The subjects were randomly divided into the experimental group who participates in the hydrogymnastics training program and the control group who was not involved in the training and remained sedentary. The serum levels of highsensitivity C-reactive protein were determined by immunoturbidimetry using C-reactive protein (CRP), the training protocol consisted of hydrogymnastics sessions 5 times per week during 12 weeks of intervention, executed in a pool of 1.3 meters divided into three phases: a 10-minute warm-up, 30 minutes of aerobic exercise at 50%-60% of maximum heart rate (monitored by heart rate monitor) and a 10-minute cool down. As a statistical method to compare the results between groups of variables pre and post training, the analysis of variance (ANOVA) mixed 2 × 2 (group × measurement) test was done using SPSS version 17. The founds showed significant changes in the level of high-sensitivity C-reactive protein, and a greater percentage decrease of hs-CRP (Δ%= -37%, p = 0.001) in the experimental group in relation to the control ***, it can be inferred that a hydrogymnastics program is effective in reducing the metabolic rate of high-sensitivity C-reactive protein amongst elderly women.

关键词： Elderly hs-CRP Hydrogymnastics