De-RISC: A complete RISC-V based space-grade platform

The H2020 EIC-FTI De-RISC project develops a RISC-V space-grade platform to jointly respond to several emerging, as well as longstanding needs in the space domain such as: (1) higher performance than that of monocore and basic multicore space-grade processors in the market; (2) access to an increasingly rich software ecosystem rather than sticking to the slowly fading SPARC and PowerPC-based ones; (3) freedom (or drastic reduction) of export and license restrictions imposed by commercial ISAs such as Arm; and (4) improved support for the design and validation of safety-related real-time applications, (5) being the platform with software qualified and hardware designed per established space industry standards. De-RISC partners have set up the different layers of the platform during the first phases of the project. However, they have recently boosted integration and assessment activities. This paper introduces the De-RISC space platform, presents recent progress such as enabling virtualization and software qualification, new MPSoC features, and use case deployment and evaluation, including a comparison against other commercial platforms. Finally, this paper introduces the ongoing activities that will lead to the hardware and fully qualified software platform at TRL8 on FPGA by September 2022.This project has received funding from the European Union’s Horizon 2020 Research and Innovation programme under Grant Agreement EIC-FTI 869945. BSC work has also been partially supported by the Spanish Ministry of Science and Innovation under grant PID2019-07255GBC21/AEI/10.13039/501100011033.Peer ReviewedPostprint (author's final draft

Sistema de teleoperación y supervisión de un robot bípedo en tiempo real

Consulta en la Biblioteca ETSI Industriales (5990)[ES] El presente proyecto tiene como objetivo principal el desarrollo de un sistema hardware y software basado en microcontrolador para la teleoperación y supervisión de un robot bípedo de forma inalámbrica. Dicho robot, denominado Yabiro-II, se ha diseñado y construido en el Departamento de Informática de Sistemas y Computadores de la Universidad Politécnica de Valencia. Yabiro-II corresponde a las siglas de Yet Another BIped RObot (del inglés ¿otro robot bípedo más), y actualmente está siendo desarrollado con subvenciones de los proyectos FEDER-CICYT DPI 2002-04434-C04-03 y CTIDIA 2002/21.Nicolau Gallego, V. (2006). Sistema de teleoperación y supervisión de un robot bípedo en tiempo real. http://hdl.handle.net/10251/36890.Archivo delegad

Implementación de un Middleware de Control para Sistemas con Recursos Limitados

Desarrollo de una arquitectura middleware de control, denominada Kertrol, en sistemas con recursos limitados. Dicho núcleo de control es denominado Tiny Middleware. Esta arquitectura ha sido validada en un sistema empotrado aplicado a robótica móvil. Abstract: Development of control middleware architecture, called Kertrol, in systems with restricted resources. This control kernel is called Tiny Middleware. This architecture was validated in embedded systems applied to a mobile robotics.Nicolau Gallego, V. (2008). Implementación de un Middleware de Control para Sistemas con Recursos Limitados. http://hdl.handle.net/10251/12317Archivo delegad

De-RISC – Dependable Real-Time Infrastructure for Safety-Critical Computer Systems

Publicat en accés amb el permís de l'editor / Published in open access with the permission of the publisher.The space domain demands increased performance, reliable and easy to verify and validate platforms tomatch the requirements of highly autonomous missions and systems that need to undergo qualification and certification against safety guidelines, and be commercialized worldwide minimizing export restrictions. Unfortunately, commercial platforms either fail to match domainspecific requirements for space (e.g. safety requirements), are limited by US export regulations, or simply fail both sets of requirements. This paper introduces De-RISC, a novel HW/SW platform meeting space requirements for safety- and mission-critical applications by construction, with explicit support to ease performance validation and diagnosis, and based on the RISC-V instruction set architecture. The De-RISC platform, which builds upon fentISS’ XtratuM hypervisor and a Cobham Gaisler (CG) NOEL-V based MPSoC, will reach commercial maturity in 2022, and will be assessed against a space use case.This project has received funding from the European Union’s Horizon 2020 Research and Innovation programme under Grant Agreement EIC-FTI 869945.Peer ReviewedPostprint (published version

De-RISC: the First RISC-V space-grade platform for safety-critical systems

The increasing needs for performance in the space domain for highly autonomous systems calls for more powerful space MPSoCs and appropriate hypervisors to master them. These platforms must adhere to strict reliability, verifiability and validation requirements since spacecraft for deep space missions are exposed to a harsh environment. Systems must undergo screening and tests against standards for electronic components and software. Unfortunately, currently available space-grade processor components do not meet requirements related to safety that are becoming increasingly important in space applications. This paper presents the De-RISC platform, consisting of Cobham Gaisler’s RISC-V based SoC, and fentISS’ XtratuM Next Generation hypervisor. The platform implements the open RISC-V Instruction Set Architecture, and leverages space SoC IP by Cobham Gaisler, space hypervisor technology by fentISS, multicore interference management solutions by the Barcelona Supercomputing Center, and end user experience and requirement guidance by Thales Research and Technology. At its current state, the platform is already complete and integrated, and starting its validation phase prior to reaching commercial maturity by early 2022. In this paper, we provide details of the platform and some preliminary evidence of its operation.This project has received funding from the European Union’s Horizon 2020 Research and Innovation programme under Grant Agreement EIC-FTI 869945. BSC work has also been partially supported by the Spanish Ministry of Science and Innovation under grant PID2019-107255GB.Peer ReviewedPostprint (author's final draft

Postfire biodiversity database for eastern Iberia

Abstract In the summer of 2012, two fires affected Mediterranean ecosystems in the eastern Iberian Peninsula. The size of these fires was at the extreme of the historical variability (megafires). Animals are traditionally assumed to recolonize from source populations outside of the burned area (exogenous regeneration) while plants recover from endogenous regeneration (resprouting and seeding). However, there is increasing evidence of in situ fire survival in animals. To evaluate the effect of large-scale fires on biodiversity and the mechanism of recovery, in 2013, we set up 12 plots per fire, covering burned vegetation at different distances from the fire perimeter and unburned vegetation. In each plot, we followed the postfire recovery of arthropods, reptiles (including some of their parasites), and plants for 2 to 5 years. Here we present the resulting database (POSTDIV) of taxon abundance. POSTDIV totals 19,906 records for 457 arthropod taxa (113,681 individuals), 12 reptile taxa (503 individuals), 4 reptile parasites (234 individuals), and 518 plant taxa (cover-abundance). We provide examples in the R language to query the database

Efficacy and Safety of Tinzaparin in Prophylactic, Intermediate and Therapeutic Doses in Non-Critically Ill Patients Hospitalized with COVID-19: The PROTHROMCOVID Randomized Controlled Trial

Hospitalized patients with COVID-19 are at increased risk of thrombosis, acute respiratory distress syndrome and death. The optimal dosage of thromboprophylaxis is unknown. The aim was to evaluate the efficacy and safety of tinzaparin in prophylactic, intermediate, and therapeutic doses in non-critical patients admitted for COVID-19 pneumonia. PROTHROMCOVID is a randomized, unblinded, controlled, multicenter trial enrolling non-critical, hospitalized adult patients with COVID-19 pneumonia. Patients were randomized to prophylactic (4500 IU), intermediate (100 IU/kg), or therapeutic (175 IU/kg) groups. All tinzaparin doses were administered once daily during hospitalization, followed by 7 days of prophylactic tinzaparin at discharge. The primary efficacy outcome was a composite endpoint of symptomatic systemic thrombotic events, need for invasive or non-invasive mechanical ventilation, or death within 30 days. The main safety outcome was major bleeding at 30 days. Of the 311 subjects randomized, 300 were included in the prespecified interim analysis (mean [SD] age, 56.7 [14.6] years; males, 182 [60.7%]). The composite endpoint at 30 days from randomization occurred in 58 patients (19.3%) of the total population; 19 (17.1 %) in the prophylactic group, 20 (22.1%) in the intermediate group, and 19 (18.5%) in the therapeutic dose group (p = 0.72). No major bleeding event was reported; non-major bleeding was observed in 3.7% of patients, with no intergroup differences. Due to these results and the futility analysis, the trial was stopped. In non-critically ill COVID-19 patients, intermediate or full-dose tinzaparin compared to standard prophylactic doses did not appear to affect the risk of thrombotic event, non-invasive ventilation, or mechanical ventilation or death. Trial RegistrationClinicalTrials.gov Identifier (NCT04730856). Edura-CT registration number: 2020-004279-42

Update on the Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Guideline of the Brazilian Society of Cardiology-2019

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