Search results for "SSAM"
showing 10 items of 78 documents
Sampling Rate in the Dynamic Speckle Analysis
2022
AbstractDynamic laser speckle and its biological version (biospeckle laser) have been used in many areas of knowledge. Its non-invasive approach allows the application in advantage regarding those that need contact or damage the analyzed sample. However, one needs the sharp adjust of the image acquiring and processing. In this article, we show how the variation of sampling rate in a dynamic speckle analysis affects the value of dynamic speckle indexes concerning the absolute value of the differences index, the temporal speckle standard deviation index, and the temporal speckle mean index. We show that the dynamic speckle index value changes its maximum excursion with the variation of sampli…
Importancia de las destrezas de procesamiento de la información en la comprensión de textos científicos
2010
Resumen basado en el de la publicación Se pretende demostrar que algunos obstáculos en la comprensión de las ciencias no están causados por esquemas conceptuales alternativos, sino por deficiencias en los niveles de comprensión lectora y de control de la propia comprensión de los estudiantes. Se miden esos niveles y se controlan las ideas alternativas en dos muestras de estudiantes de cuarto de la ESO. Se pide a los alumnos que lean un texto experimental sobre 'Evolución de las especies' y que respondan a cuestiones consultando el texto a voluntad. Se predicen diferencias claras en las respuestas según los niveles de comprensión lectora y control de la comprensión, pero no debidas a esquema…
Spectral characterization of laser-accelerated protons with CR-39 nuclear track detector
2018
CR-39 nuclear track material is frequently used for the detection of protons accelerated in laser-plasma interactions. The measurement of track densities allows for determination of particle angular distributions, and information on the kinetic energy can be obtained by the use of passive absorbers. We present a precise method of measuring spectral distributions of laser-accelerated protons in a single etching and analysis process. We make use of a one-to-one relation between proton energy and track size and present a precise calibration based on monoenergetic particle beams. While this relation is limited to proton energies below 1 MeV, we show that the range of spectral measurements can b…
ROAD SAFETY PERFORMANCES FROM MICRO-SIMULATION CONSIDERING AUTONOMOUS VEHICLES OPERATIONS
2019
Introduction of Autonomous Vehicles in road traffic will remove the impact of the human factor from the driver’s decision-making process, and will transform the criteria for road network design, road infrastructure administration, traffic modeling and assessment tools for road safety management. The paper presents a microsimulation-based approach for safety performance evaluation of roundabouts where different percentages of Autonomous Vehicles are mixed with Conventional Vehicles. The simulated vehicle trajectories exported from VISSIM were used as a basis to estimate traffic conflicts through the Surrogate Safety Assessment Model (SSAM) for a sample of European roundabouts. In order to be…
Il negativo e la ritrattazione della metafisica. Nota su un libro di Leonardo Samonà
2016
Presentazione e discussione critica del volume di L. Samonà, "Ritrattazioni della metafisica". Si analizza l'uso che viene fatto della nozione di ritrattazione e se ne mette in luce la fecondità e l''interesse ai fini di una rilettura della tradizione della metafisica. Si approfondisce in particolare il nesso strutturale che si istituisce fra i concetti di filosofia e quello di metafisica in riferimento al carattere "negativo" della relazione fra la verità e il pensiero.
Synergistic integration of optical and microwave satellite data for crop yield estimation
2019
Developing accurate models of crop stress, phenology and productivity is of paramount importance, given the increasing need of food. Earth observation (EO) remote sensing data provides a unique source of information to monitor crops in a temporally resolved and spatially explicit way. In this study, we propose the combination of multisensor (optical and microwave) remote sensing data for crop yield estimation and forecasting using two novel approaches. We first propose the lag between Enhanced Vegetation Index (EVI) derived from MODIS and Vegetation Optical Depth (VOD) derived from SMAP as a new joint metric combining the information from the two satellite sensors in a unique feature or des…
The defendant’s guilt beyond a reasonable doubt in the Italian criminal justice system
2021
The criminal law standard of Beyond A Reasonable Doubt (BARD) constitutes an evidentiary and judicial rule, formulated and applied for centuries in common law jurisdictions, which was expressly stated in the Italian Code of Criminal Procedure only about fifteen years ago. Unfortunately, the concept of reasonable doubt is inherently complex and does not easily lend itself to definition or refinement. In this regard, the Author examines especially the various positions and elaborations developed by legal literature and case-law in Italy, proposing a specific interpretation of the BARD rule that enhances and completes the particular procedural connotations of the adversarial system adopted i…
Fusing optical and SAR time series for LAI gap filling with multioutput Gaussian processes
2019
The availability of satellite optical information is often hampered by the natural presence of clouds, which can be problematic for many applications. Persistent clouds over agricultural fields can mask key stages of crop growth, leading to unreliable yield predictions. Synthetic Aperture Radar (SAR) provides all-weather imagery which can potentially overcome this limitation, but given its high and distinct sensitivity to different surface properties, the fusion of SAR and optical data still remains an open challenge. In this work, we propose the use of Multi-Output Gaussian Process (MOGP) regression, a machine learning technique that learns automatically the statistical relationships among…
Jaunu tetratiafulvalēnu atvasinājumu sintēze
2019
Jaunu tetratiafulvalēnu atvasinājumu sintēze. Karpicka D., zinātniskais vadītājs Dr. Chem. Šubins K. Bakalaura darbs, 44 lappuses, 34 attēli, 3 tabulas, 36 literatūras avoti, 1 pielikumi. Latviešu valodā. Literatūras apskatā ir apkopota informācija par tetratiafulvalēnu atvasinājumu sintēzi, izmantojot palādija katalizētas šķērssametināšanas reakcijas, reakciju mehānismiem un visbiežāk izmantotiem reaģentiem. Bakalaura darbs ir veltīts jaunu tetratiafulvalēna atvasinājumu iegūšanai. Ir aprakstīti sintēžu mēginājumi un galvenās problēmas to veikšanā.
Mobile Learning en las Artes Visuales. Un acercamiento a las experiencias educativas artística con smartphones en los últimos años.
2020
La presente aportación hace una referencia inicial a aspectos teóricos sobre la relevancia del aprendi zaje en movilidad como alternativa para el aprendizaje mediante imágenes. Adentrándonos en el tema, exponemos una revisión de experiencias educativas incipientes, desarrolladas en la última década, sobre el uso de dispositivos móviles en las artes visuales, concretamente con teléfonos móviles. Se trata de un momento ciertamente árido en cuanto a publicaciones científicas que supongan aportaciones al bino mio artes y Mobile Learning. Entorno al año 2006, emerge tímidamente alguna actividad de carácter informal en España, y en 2007 los diarios digitales de Argentina registran también alguna …