Descripcion de todas las provincias, reynos, estados, y ciudades principales del mundo [Texto impreso] : sacada de las relaciones toscanas de Juan Botero Benes en que se trata de las costumbres, industria ... de Europa, Asia, Africa ...

Existe una ed. con el mismo pie de imp., pero con diferente signaturización tipográficaSign.: [cristus]6, A-Z8, Aa-Ee8, Ff4Port. con orla tip. y grab. xil.Frisos, capitales y viñetas xil.Reclamo

Título: Relationi universali di Giovanni Botero Benese

Hay un ejemplar encuadernado con: Relationi universali (XVI/512).Marca tip. en portSign.: A4, A-G8Capitales xil

Relaciones toscanas

Sign.: ¶2, 2¶4, A-Z4, 2A-2Z4, 3A-3L4.Portada con orla tipográfica y grabado xilográfico

Modelación numérica y experimental de un tanque de almacenamiento de agua como amortiguador pasivo

Un amortiguador pasivo, es un mecanismo que reduce las oscilaciones horizontales de estructuras de gran variedad, sin requerir de fuentes de energía externa. Estos amortiguadores reciben el nombre genérico de TMD (Tuned Mass Damper), cuyo componente amortiguador lo conforma una masa sólida, que se mueve en dirección contraria al movimiento de la estructura; si la masa componente es líquida recibe el nombre de TLD (Tuned Liquid Damper). En este artículo, se analiza los TMD genéricos y experimentalmente una variedad de los TLD, los TLCD, modelo que consiste en un sistema de amortiguación mediante el movimiento de masa líquida, a lo largo de un tanque en forma de U. ABSTRACT A passive absorber is a mechanism that reduces the horizontal oscillations of structures of great variety, without needing of sources of external energy. These absorbers receive the generic name TMD (Tuned Mass Damper), which absorber component is composed by a solid mass, which moves in the opposite direction to the movement of the structure; if the mass component is liquid it is called TLD (Tuned Liquid Damper). In this paper, the generic TMD are analyzed and experimentally a variety of the TLD, the TLCD, model who consists of a system of damper by means of the movement of liquid mass, along a U-shaped tan

The atomistic origin of the extraordinary oxygen reduction activity of Pt_3Ni_7 fuel cell catalysts

Recently Debe et al. reported that Pt_3Ni_7 leads to extraordinary Oxygen Reduction Reaction (ORR) activity. However, several reports show that hardly any Ni remains in the layers of the catalysts close to the surface (“Pt-skin effect”). This paradox that Ni is essential to the high catalytic activity with the peak ORR activity at Pt_3Ni_7 while little or no Ni remains close to the surface is explained here using large-scale first-principles-based simulations. We make the radical assumption that processing Pt–Ni catalysts under ORR conditions would leach out all Ni accessible to the solvent. To simulate this process we use the ReaxFF reactive force field, starting with random alloy particles ranging from 50% Ni to 90% Ni and containing up to ~300 000 atoms, deleting the Ni atoms, and equilibrating the resulting structures. We find that the Pt_3Ni_7 case and a final particle radius around 7.5 nm lead to internal voids in communication with the exterior, doubling the external surface footprint, in fair agreement with experiment. Then we examine the surface character of these nanoporous systems and find that a prominent feature in the surface of the de-alloyed particles is a rhombic structure involving 4 surface atoms which is crystalline-like but under-coordinated. Using density-functional theory, we calculate the energy barriers of ORR steps on Pt nanoporous catalysts, focusing on the O_(ad)-hydration reaction (O_(ad) + H_2O_(ad) → OH_(ad) + OH_(ad)) but including the barriers of O_2 dissociation (O_(2ad) → O_(ad) + O_(ad)) and water formation (OH_(ad) + H_(ad) → H_2O_(ad)). We find that the reaction barrier for the O_(ad)-hydration rate-determining-step is reduced significantly on the de-alloyed surface sites compared to Pt(111). Moreover we find that these active sites are prevalent on the surface of particles de-alloyed from a Pt–Ni 30 : 70 initial composition. These simulations explain the peak in surface reactivity at Pt_3Ni_7, and provide a rational guide to use for further optimization of improved catalytic and nanoporous materials

Making data centres fit for demand response: introducing GreenSDA and GreenSLA contracts

The power grid has become a critical infrastructure, which modern society cannot do without. It has always been a challenge to keep power supply and demand in balance; the more so with the recent rise of intermittent renewable energy sources. Demand response schemes are one of the counter measures, traditionally employed with large industrial plants. This paper suggests to consider data centres as candidates for demand response as they are large energy consumers and as they are able to adapt their power profile sufficiently well. To unlock this potential, we suggest a system of contracts that regulate collaboration and economic incentives between the data centre and its energy supplier (GreenSDA) as well as between the data centre and its customers (GreenSLA). Several presented use cases serve to validate the suitability of data centers for demand response schemes.Peer ReviewedPostprint (author's final draft

Relaciones universales del mundo

Sign.: []3, A6, B-Z8, 2a-2b8, 2c6, A-N8, O6, [calderón]-4[calderón]6En el colofón de la Parte Segunda: impresso en Valladolid : por Diego Fernández de Cordova y Oviedo, 1599Texto a dos col.Error en la pag. 293 [i.e. 193]Copia digital. Valladolid : Junta de Castilla y León. Consejería de Cultura y Turismo, 2009-201

La terza parte delle Relationi vniuersali /

BHR/A-035-248 (1)(BIB LVL) w-FONDO ANTIGUO(ES-GrU)b20314917-34cbua_ugrUGRBRZ-LALBotero, GiovanniLa terza parte delle Relationi vniuersali /In Bergamo :[16], 310 [i.e. 312] p.Marca tip. en port.Error de pág.: las p. 292-293 repetidasEnc. junto con: "La quarta parte delle Relationi vniuersali di Giouanni Botero benese..."Esta digitalización se ha realizado con fondos del Ministerio de Cultura y Deport

Ecología del Dacnis Turquesa (dacnis hartlaubi) en la zona cafetera de Támesis, Antioquia

El Dacnis Turquesa es una especie endémica de Colombia (Hilty y Brown 1996, Stiles 1998), cuya distribución es aparentemente muy restringida y fragmentada (Collar et al. 1992, Hilty y Brown 1996, Botero y Verhelst 2001).BogotáPrograma de Becas para la Conservación de Especies de Fauna y Flor

Infectious Diseases, Social, Economic and Political Crises, Anthropogenic Disasters and Beyond: Venezuela 2019 – Implications for Public Health and Travel Medicine

During last months, there have been a significant increase in the evidences showing the catastrophic health situation in Venezuela. There are multiple epidemics, increase in emerging and reemerging infectious, tropical and parasitic diseases as consequences of the social, economic and political crises, which would be considered today a clearly anthropogenic disaster. Venezuela is facing in 2019, the worse sanitary conditions, with multiple implications for public health and travel medicine. So far, from a global perspective, this situation will be an impediment for the achievement of the sustainable development goals (SDG) in 2030. In this multiauthor review, there is a comprehensive analysis of the situation for infectious diseases, non-communicable diseases, their impact in the Americas region, given the migration crisis as well as the comparative status of the SDG 2030. This discussion can provide input for prioritizing emerging health problems and establish a future agenda