Proyecto de aprovechamiento forestal (18,92 hectáreas) y restauración de la ribera del río Trema, en el término municipal de Torme (Burgos).

El presente proyecto consiste en un aprovechamiento forestal y en una restauración de ribera, en el pueblo de Torme, al norte de la provincia de Burgos. Por medio de la superficie a repoblar pasa el río Trema, afluente del río Nela. En el lugar en el que se va a realizar la repoblación para el aprovechamiento, actualmente, existe una chopera, la cuál va a ser cortada. Los diámetros de los chopos actuales, no son los esperados, por tanto, el nuevo aprovechamiento no será de chopos. El río en una de sus curvas está erosionando el talud, esto afectará a la nueva repoblación pudiendo arrasar con los árboles plantados cerca del río, como solución, la restauración de la ribera.Grado en Ingeniería Forestal y del Medio Natura

Electrical installation of the extensión building of a school with residence

Diseño de la instalación eléctrica de un nuevo edificio de ampliación de un colegio, el cual incluye zonas con aulas, una residencia, un comedor cuya cocina esta equipada con un horno y una cámara frigorífica, un pabellón, y un templo, así como una pequeña lavandería con lavadoras y secadoras, 2 aulas de informática con 24 ordenadores cada una y una bomba de calor, que junto con una caldera de gas se encargarán de la calefacción y producción de ACS del edificio. La previsión de carga total es de unos 370 kW. Además, se ejecutará un estudio alternativo con energías renovables (Paneles solares). Así mismo, se realizará el cálculo de las protecciones correspondientes siguiendo en todo momento el Reglamento Electrotécnico de Baja Tensión, así como las normas, tanto generales como particulares, de la empresa eléctrica suministradoraDesign of the electrical installation of a new school expansion building, which includes areas with classrooms, a residence, a dining room whose kitchen is equipped with an oven and a cold room, a pavilion, and a temple, as well as a small laundry with washing machines and dryers, 2 computer rooms with 24 computers each and a heat pump, which together with a gas boiler will be responsible for the heating and DHW production of the building. The total load forecast is about 370 kW. In addition, an alternative study will be carried out with renewable energies (solar panels). Likewise, the calculation of the corresponding protections will be carried out following the Low Voltage Electrotechnical Regulations, as well as the regulations, both general and specific, of the supplying electrical companyGrado en Ingeniería en Tecnologías Industriale

Effect of hard and soft re-coater blade on porosity and processability of thin walls and overhangs in laser powder bed fusion additive manufacturing

Spreading powder into thin layers is a fundamental step in the laser powder bed fusion (PBF-LB) additive manufacturing process. This step is called re-coating and it is typically performed using either a hard, soft or brush-type re-coater blade or a rotating roller, depending on the machine brand and model. With such variety in powder spreading approaches, the question arises whether the used re-coater type has a significant effect on the quality of parts produced? In this study, an industrial contact image sensor integrated to the re-coater of a PBF-LB system was used for powder bed quality monitoring. Powder bed images at 21 µm/pixel resolution, 184 mm scanning width and 95 mm/s re-coating speed were acquired. With this, the effect of using either soft (rubber) or hard (steel) re-coater blade on the processability of challenging features such as thin walls and steep overhangs was studied. In addition, porosity and dimensional accuracy of parts produced using either the soft or hard blade was analyzed with X-ray computed tomography. It is shown that when building bulk material without any complex features, both the hard and soft re-coating blade results in extremely low porosity ≤ 0.001% without any issues in the processability. However, when thin walls and overhangs are produced, differences in processability, porosity and dimensional accuracy are observed as a function of re-coater blade and part orientation. This is an important factor in understanding all the significant sources contributing to the variability on quality of parts produced using different PBF-LB machines

La caza de vicuñas en tebenquiche chico (dpto. Antofagasta de la sierra, catamarca). : Un acercamiento de larga duración

La caza de vicuñas, en el marco de la historia social de la Puna meridional argentina, ha sido una práctica recurrente y relevante dentro de las estrategias sociales, políticas y económicas de las poblaciones humanas que ocuparon el área. En este trabajo mostramos, a partir del registro arqueofaunístico de dos compuestos domésticos (TC1 y TC2) de la Quebrada de Tebenquiche Chico (Dpto. Antofagasta de la Sierra, Provincia de Catamarca), la representación diferencial de camélidos silvestres y domesticados, resaltando la importancia de esta particular práctica de apropiación en el largo término de ocupación de la quebrada entre los siglos III y XVII d.C. Asimismo, recurrimos a una serie de elementos de la cultura material como, por ejemplo, restos de fanéreos, puntas de proyectil y estructuras de caza (parapetos), para fundamentar nuestra interpretación.The hunting of vicuña, in the framework of the social history of the southern Argentinian Puna, has been a recurrent and relevant practice within the social, political, and economic strategies of the human populations which occupied the area. In this paper we show, on the basis of the archaeofaunal records of two domestic compounds (TC1 and TC2) of the Tebenquiche Chico Ravine (Antofagasta de la Sierra County, Province of Catamarca), the differential representation of wild and domesticated camelids, highlighting the importance of this particular appropriation practice during the long term occupation of the ravine between the 3rd and 17th century a.D. We also discuss a series of material culture elements, for example, wool remains, projectile points, and hunting structures (parapets), in order to reinforce our interpretation.Sociedad Argentina de Antropologí

La caza de vicuñas en Tebenquiche Chico (Dpto. Antofagasta de la Sierra, Catamarca) : Un acercamiento de larga duración

La caza de vicuñas, en el marco de la historia social de la Puna meridional argentina, ha sido una práctica recurrente y relevante dentro de las estrategias sociales, políticas y económicas de las poblaciones humanas que ocuparon el área. En este trabajo mostramos, a partir del registro arqueofaunístico de dos compuestos domésticos (TC1 y TC2) de la Quebrada de Tebenquiche Chico (Dpto. Antofagasta de la Sierra, Provincia de Catamarca), la representación diferencial de camélidos silvestres y domesticados, resaltando la importancia de esta particular práctica de apropiación en el largo término de ocupación de la quebrada entre los siglos III y XVII d.C. Asimismo, recurrimos a una serie de elementos de la cultura material como, por ejemplo, restos de fanéreos, puntas de proyectil y estructuras de caza (parapetos), para fundamentar nuestra interpretación.The hunting of vicuña, in the framework of the social history of the southern Argentinian Puna, has been a recurrent and relevant practice within the social, political, and economic strategies of the human populations which occupied the area. In this paper we show, on the basis of the archaeofaunal records of two domestic compounds (TC1 and TC2) of the Tebenquiche Chico Ravine (Antofagasta de la Sierra County, Province of Catamarca), the differential representation of wild and domesticated camelids, highlighting the importance of this particular appropriation practice during the long term occupation of the ravine between the 3rd and 17th century a.D. We also discuss a series of material culture elements, for example, wool remains, projectile points, and hunting structures (parapets), in order to reinforce our interpretation.Sociedad Argentina de Antropologí

La caza de vicuñas en tebenquiche chico (dpto. Antofagasta de la sierra, catamarca). : Un acercamiento de larga duración

La caza de vicuñas, en el marco de la historia social de la Puna meridional argentina, ha sido una práctica recurrente y relevante dentro de las estrategias sociales, políticas y económicas de las poblaciones humanas que ocuparon el área. En este trabajo mostramos, a partir del registro arqueofaunístico de dos compuestos domésticos (TC1 y TC2) de la Quebrada de Tebenquiche Chico (Dpto. Antofagasta de la Sierra, Provincia de Catamarca), la representación diferencial de camélidos silvestres y domesticados, resaltando la importancia de esta particular práctica de apropiación en el largo término de ocupación de la quebrada entre los siglos III y XVII d.C. Asimismo, recurrimos a una serie de elementos de la cultura material como, por ejemplo, restos de fanéreos, puntas de proyectil y estructuras de caza (parapetos), para fundamentar nuestra interpretación.The hunting of vicuña, in the framework of the social history of the southern Argentinian Puna, has been a recurrent and relevant practice within the social, political, and economic strategies of the human populations which occupied the area. In this paper we show, on the basis of the archaeofaunal records of two domestic compounds (TC1 and TC2) of the Tebenquiche Chico Ravine (Antofagasta de la Sierra County, Province of Catamarca), the differential representation of wild and domesticated camelids, highlighting the importance of this particular appropriation practice during the long term occupation of the ravine between the 3rd and 17th century a.D. We also discuss a series of material culture elements, for example, wool remains, projectile points, and hunting structures (parapets), in order to reinforce our interpretation.Sociedad Argentina de Antropologí

Zeolites as reservoirs for Ce(III) as passivating ions in anticorrosion paints

The aim of this paper was to evaluate the performance of two different modified zeolitic minerals as anticorrosion pigments in order to reduce or eliminate zinc phosphate in paints. In the first stage, the selected minerals were characterized and modified with cerium ions to obtain the anticorrosion pigments. Their inhibitive properties were evaluated by means of electrochemical techniques (corrosion potential measurements and polarization curves) employing a steel electrode immersed in the pigments suspensions. In the second stage, solventborne paints, with 30% by volume of the anticorrosion pigment, with respect of the total pigment content, were formulated. The performance of the resulting paints was assessed by accelerated (salt spray and humidity chambers) and electrochemical tests (corrosion potential measurements and electrochemical impedance spectroscopy) and compared with that of a control paint with 30% by volume of zinc phosphate. Results obtained in this research suggested that zeolites can be used as carriers for passivating ions in the manufacture of anticorrosion paints with at least reduced zinc phosphate content.Centro de Investigación y Desarrollo en Tecnología de Pintura