Proyecto básico del ramal de la estación de Rózyniec a la planta industrial de Osla (Polonia)

[ES] Se plantea el diseño general del ramal desde la estación en Rózyniez a una planta industrial que se va a construir en Osla (Polonia). Se trata tanto de definir el trazado en planta y en alzado, como el esquema de vías de la planta industrial para el estacionamiento y clasificación de vagones. Para el diseño del esquema de vías, se hará un estudio de los movimientos necesarios de los trenes para que las maniobras se realicen de manera óptima. El trabajo se plantea como proyecto básico, por lo que incluye el diseño general del ramal (planta, alzado y secciones transversales singulares), como distribución de la playa de vías precia a la planta industrial, distribución de las vías en el interior de la planta industrial y un diagrama de maniobras. No se consideran las instalaciones fijas de electrificación y señalización.[EN] This document intends to do a general design of a siding from a station in Rózyniec to a industrial plant in Osla (Poland). It developes the vertical and horizontal geometry, as well as the marshalling yard for storaging and classifying wagons, and the track layout inside the industrial plant. For this last part it has also been developed a shunting work harmonogram, representing in a diargam all the maneuvers a train must do.Just Martínez, V. (2019). Proyecto básico del ramal de la estación de Rózyniec a la planta industrial de Osla (Polonia). http://hdl.handle.net/10251/135654TFG

Implementation of a Low-Cost Data Acquisition System on an E-Scooter for Micromobility Research

[EN] In recent years, cities are experiencing changes in the ways of moving around, increasing the use of micromobility vehicles. Bicycles are the most widespread transport mode and, therefore, cyclists¿ behaviour, safety, and comfort have been widely studied. However, the use of other personal mobility vehicles is increasing, especially e-scooters, and related studies are scarce. This paper proposes a low-cost open-source data acquisition system to be installed on an e-scooter. This system is based on Raspberry Pi and allows collecting speed, acceleration, and position of the e-scooter, the lateral clearance during meeting and overtaking manoeuvres, and the vibrations experienced by the micromobility users when riding on a bike lane. The system has been evaluated and tested on a bike lane segment to ensure the accuracy and reliability of the collected data. As a result, the use of the proposed system allows highway engineers and urban mobility planners to analyse the behaviour, safety, and comfort of the users of e-scooters. Additionally, the system can be easily adapted to another micromobility vehicle and used to assess pavement condition and micromobility users¿ riding comfort on a cycling network when the budget is limited.This research was funded by MCIN/AEI/10.13039/501100011033, grant number PID2019-111744RB-I00.Pérez Zuriaga, AM.; Llopis-Castelló, D.; Just-Martínez, V.; Fonseca-Cabrera, AS.; Alonso-Troyano, C.; García García, A. (2022). Implementation of a Low-Cost Data Acquisition System on an E-Scooter for Micromobility Research. Sensors. 22(21):1-18. https://doi.org/10.3390/s22218215118222

Lack of robustness of textural measures obtained from 3D brain tumor MRIs impose a need for standardization

Purpose Textural measures have been widely explored as imaging biomarkers in cancer. However, their robustness under dynamic range and spatial resolution changes in brain 3D magnetic resonance images (MRI) has not been assessed. The aim of this work was to study potential variations of textural measures due to changes in MRI protocols. Materials and methods Twenty patients harboring glioblastoma with pretreatment 3D T1-weighted MRIs were included in the study. Four different spatial resolution combinations and three dynamic ranges were studied for each patient. Sixteen three-dimensional textural heterogeneity measures were computed for each patient and configuration including co-occurrence matrices (CM) features and run-length matrices (RLM) features. The coefficient of variation was used to assess the robustness of the measures in two series of experiments corresponding to (i) changing the dynamic range and (ii) changing the matrix size. Results No textural measures were robust under dynamic range changes. Entropy was the only textural feature robust under spatial resolution changes (coefficient of variation under 10% in all cases). Conclusion Textural measures of three-dimensional brain tumor images are not robust neither under dynamic range nor under matrix size changes. Standards should be harmonized to use textural features as imaging biomarkers in radiomic-based studies. The implications of this work go beyond the specific tumor type studied here and pose the need for standardization in textural feature calculation of oncological images

Caracterització de la comoditat del paviment per als usuaris de vehicles de mobilitat personal mitjançant l ús d un patinet elèctric instrumentat amb tecnologia Raspberry Pi. Aplicació pràctica en el districte Pla del Real de la ciutat de València.

[ES] Este Trabajo Final de Máster tiene como principal objetivo analizar las vibraciones producidas por diferentes tipos de pavimentos para conocer la comodidad de las personas que utilizan Vehículos de Movilidad Personal (VMP) en la ciudad de Valencia a través de toma de datos mediante vehículos instrumentados. Para ello, se diseñará la instrumentalización de un patinete eléctrico mediante una unidad inercial de medida (IMU) y GPS conectados a una Raspberry Pi y programados con Python. Las variables a estudiar son: el estado y tipología del pavimento de la vía ciclista, la velocidad de circulación y la localización continua. Tomando como base los resultados de este estudio se analizará el pavimento de los carriles bici del distrito de Pla del Real de Valencia y se propondrán medidas de mejora.[EN] This Master Thesis aims to analyse the vibrations generated by different kind of pavements in order to assess e-scooter users' confort in the city of Valencia by gathering data with an instrumented vehicle. Thus, the design of the instrumentation of an electric scooter should be done using an Inertial Measurement Unit (IMU) and a GPS connected to a Raspberry Py and programmed on Python. The studied variables are both the material and the status of the pavement on the cycling infrastructure, the riding speed and continuous location. Taking into account the results of this investigation, an analysis of the cycling infrastructure on the district Pla del Real will be carried out before proposing improving measures.Just Martínez, V. (2022). Caracterización de la comodidad del pavimento para los usuarios de vehículos de movilidad personal mediante el uso de un patinete eléctrico instrumentado con tecnología Raspberry Pi. Aplicación práctica en el distrito Pla del Real de la ciudad de Valencia. Universitat Politècnica de València. http://hdl.handle.net/10251/18918

NEOTROPICAL CARNIVORES: a data set on carnivore distribution in the Neotropics

Mammalian carnivores are considered a key group in maintaining ecological health and can indicate potential ecological integrity in landscapes where they occur. Carnivores also hold high conservation value and their habitat requirements can guide management and conservation plans. The order Carnivora has 84 species from 8 families in the Neotropical region: Canidae; Felidae; Mephitidae; Mustelidae; Otariidae; Phocidae; Procyonidae; and Ursidae. Herein, we include published and unpublished data on native terrestrial Neotropical carnivores (Canidae; Felidae; Mephitidae; Mustelidae; Procyonidae; and Ursidae). NEOTROPICAL CARNIVORES is a publicly available data set that includes 99,605 data entries from 35,511 unique georeferenced coordinates. Detection/non-detection and quantitative data were obtained from 1818 to 2018 by researchers, governmental agencies, non-governmental organizations, and private consultants. Data were collected using several methods including camera trapping, museum collections, roadkill, line transect, and opportunistic records. Literature (peer-reviewed and grey literature) from Portuguese, Spanish and English were incorporated in this compilation. Most of the data set consists of detection data entries (n = 79,343; 79.7%) but also includes non-detection data (n = 20,262; 20.3%). Of those, 43.3% also include count data (n = 43,151). The information available in NEOTROPICAL CARNIVORES will contribute to macroecological, ecological, and conservation questions in multiple spatio-temporal perspectives. As carnivores play key roles in trophic interactions, a better understanding of their distribution and habitat requirements are essential to establish conservation management plans and safeguard the future ecological health of Neotropical ecosystems. Our data paper, combined with other large-scale data sets, has great potential to clarify species distribution and related ecological processes within the Neotropics. There are no copyright restrictions and no restriction for using data from this data paper, as long as the data paper is cited as the source of the information used. We also request that users inform us of how they intend to use the data