Radiation and Dust Sensor for Mars Environmental Dynamic Analyzer Onboard M2020 Rover

32 pags., 26 figs., 3 tabs. -- This article belongs to the Section Remote SensorsThe Radiation and Dust Sensor is one of six sensors of the Mars Environmental Dynamics Analyzer onboard the Perseverance rover from the Mars 2020 NASA mission. Its primary goal is to characterize the airbone dust in the Mars atmosphere, inferring its concentration, shape and optical properties. Thanks to its geometry, the sensor will be capable of studying dust-lifting processes with a high temporal resolution and high spatial coverage. Thanks to its multiwavelength design, it will characterize the solar spectrum from Mars' surface. The present work describes the sensor design from the scientific and technical requirements, the qualification processes to demonstrate its endurance on Mars' surface, the calibration activities to demonstrate its performance, and its validation campaign in a representative Mars analog. As a result of this process, we obtained a very compact sensor, fully digital, with a mass below 1 kg and exceptional power consumption and data budget features.This work has been funded with the help of the Spanish National Research, Development and Innovation Program, through the grants RTI2018-099825-B-C31, ESP2016-80320-C2-1-R and ESP2014-54256-C4-3-R. DT acknowledges the financial support from the Comunidad de Madrid for an “Atracción de Talento Investigador” grant (2018-T2/TIC10500). ASL is supported by Grant PID2019-109467GB-I00 funded by MCIN/AEI/10.13039/501100011033/ and by Grupos Gobierno Vasco IT1366-19. The US co-authors performed their work under sponsorship from NASA’s Mars 2020 project, from the Game Changing Development program within the Space Technology Mission Directorate, and from the Human Exploration and Operations Directorate.Peer reviewe

Les déterminants de la perscription de clonazépam dans la douleur neuropathique (une étude qualitative auprès de 21 médecins généraliste en Hérault)

MONTPELLIER-BU Médecine UPM (341722108) / SudocMONTPELLIER-BU Médecine (341722104) / SudocSudocFranceF

A Bridging Framework for the Modeling of Devices, Users, and Interfaces

This paper presents a bridging framework for combining the results of various models of human-computer interaction. It views a system as a composite of interacting subsystems, and describes how those subsystems must be structured to permit compositions in which responsibility for global behavior can be appropriately ascribed. The paper presents a human-device example (wrist watch) and develops a range of task and device models. The devices and tasks are modeled by colored Petri nets partitioned to cleanly distinguish submodel component visibility and interface affordances. The formality of Petri nets allows for axiomatic validation of isolated and interacting subsystems. KEYWORDS: Petri nets, User Interface Design, System Modeling, Task Modeling INTRODUCTION Research in human-computer interaction abounds in various notations, formalisms and models that aim at capturing one or more aspects of a domain. One underlying problem is that various disciplines relating to HCI are complex in ..