Parameters of the eigenellipsoid for separated sector cyclotron

http://accelconf.web.cern.ch/AccelConf/c89/papers/g1-09.pdfInternational audienc

Evaluación mediante simulación de nuevos sistemas para mantener la separación de a bordo en vuelo de crucero en forma automática o asistida

Para no comprometer la seguridad operacional, son importantes los sistemas con corrección automáticos de vigilancia embarcados, minimizando riesgos en el “control de tráfico aéreo”, facilitando así a las tripulaciones, información actualizada, permanente con correcciones automáticas en tiempo real. Este trabajo presenta el modelo, el simulador y los estudios realizados para evaluar la adaptabilidad de las tripulaciones ante un sistema totalmente automatizado, mediante el “piloto automático”, realizando las maniobras requeridas evitando conflictos con los tráficos circundantes y mantener la separación en vuelo crucero.To avoid compromising safety, on board automatic correction systems are important, minimizing risks in air traffic control, providing crews with updated information, permanent with real-time automatic corrections. This paper presents the model, the simulator and studies to evaluate the adaptability of the crews to a fully automated system, using the "automatic pilot", performing the required maneuvers avoiding conflicts with surrounding traffic and maintaining separation in cruising flight.Grupo de Transporte Aéreo - Grupo de Ingeniería Aplicada a la Industri

Estudio de la adaptabilidad de tripulaciones a un nuevo sistema automático inteligente para mantener separación de a bordo, en vuelo crucero, mediante el uso de simulacion

En la seguridad operacional son importantes los sistemas embarcados para la vigilancia y resolución de conflictos, con correcciones automáticas para mantener la separación de a bordo minimizando los riesgos en el “control de tráfico aéreo”, brindando a las tripulaciones información en tiempo real. OACI (Organización Internacional de Aviación Civil), definió el ASAS (sistema de asistencia de separación de a bordo), como: un sistema de aeronave para la vigilancia de a bordo, asistiendo a la tripulación en vuelo para mantener la separación de su aeronave con respecto a otras del entorno; permitiendo vigilancia de a bordo, sustentada por la ADS-B (automatic dependent surveillancebroadcast.), la TIS-B (traffic information services-broadcast), y el TCAS (sistema anticolisión de alerta de tráfico). Esta vigilancia es realizada por un nuevo sistema automatizado, denominado “Sim CDTI” (simulator CDTI). El A/P (autopilot), realiza las maniobras para mantener la separación horizontal y vertical, evitando predictivamente conflictos. Se presentan las evaluaciones de adaptabilidad de las tripulaciones ante un sistema automatizado, donde el A/P ejecuta maniobras adecuadas para mantener la separación y evitar conflictos. Se evalúa que la seguridad operacional no es infringida con este sistema, presentándose el desarrollo de un simulador para tal fin.Facultad de Ingenierí

Preliminary design of a new high intensity injection system for GANIL.

http://accelconf.web.cern.ch/AccelConf/c89/papers/f6-12.pdfInternational audienc

Midlatitude stratosphere - troposphere exchange as diagnosed by MLS O3 and MOPITT CO assimilated fields

International audienceThis paper presents a comprehensive characterization of a very deep stratospheric intrusion which occurred over the British Isles on 15 August 2007. The signature of this event is diagnosed using ozonesonde measurements over Lerwick, UK (60.14 N, 1.19 W) and is also well characterized using meteorological analyses from the global operational weather prediction model of Météo-France, ARPEGE. Modelled as well as assimilated fields of both ozone (O3) and carbon monoxide (CO) have been used in order to better document this event. O3 and CO from Aura/MLS and Terra/MOPITT instruments, respectively, are assimilated into the three-dimensional chemical transport model MOCAGE of Météo-France using a variational 3-DFGAT (First Guess at Appropriate Time) method. The validation of O3 and CO assimilated fields is done using selfconsistency diagnostics and by comparison with independent observations such as MOZAIC (O3 and CO), AIRS (CO) and OMI (O3). It particularly shows in the upper troposphere and lower stratosphere region that the assimilated fields are closer to MOZAIC than the free model run. The O3 bias between MOZAIC and the analyses is −11.5 ppbv with a RMS of 22.4 ppbv and a correlation coefficient of 0.93, whereas between MOZAIC and the free model run, the corresponding values are 33 ppbv, 38.5 ppbv and 0.83, respectively. In the same way, for CO, the bias, RMS and correlation coefficient between MOZAIC and the analyses are −3.16 ppbv, 13 ppbv and 0.79, respectively, whereas between MOZAIC and the free model run, the corresponding values are 33 ppbv, 38.5 ppbv and 0.83, respectively. In the same way, for CO, the bias, RMS and correlation coefficient between MOZAIC and the analyses are −3.16 ppbv, 13 ppbv and 0.79, respectively, whereas between MOZAIC and the free model they are 6.3 ppbv, 16.6 ppbv and 0.71, respectively. The paper also presents a demonstration of the capability of O3 and CO assimilated fields to better describe a stratosphere-troposphere exchange (STE) event in comparison with the free run modelled O3 and CO fields. Although the assimilation of MLS data improves the distribution of O3 above the tropopause compared to the free model run, it is not sufficient to reproduce the STE event well. Assimilated MOPITT CO allows a better qualitative description of the stratospheric intrusion event. The MOPITT CO analyses appear more promising than the MLS O3 analyses in terms of their ability to capture a deep STE event. Therefore, the results of this study open the perspectives for using MOPITT CO in the STE studies

Site testing for submillimetre astronomy at Dome C, Antarctica

Over the past few years a major effort has been put into the exploration of potential sites for the deployment of submillimetre astronomical facilities. Amongst the most important sites are Dome C and Dome A on the Antarctic Plateau, and the Chajnantor area in Chile. In this context, we report on measurements of the sky opacity at 200 um over a period of three years at the French-Italian station, Concordia, at Dome C, Antarctica. We also present some solutions to the challenges of operating in the harsh polar environ- ment. Dome C offers exceptional conditions in terms of absolute atmospheric transmission and stability for submillimetre astron- omy. Over the austral winter the PWV exhibits long periods during which it is stable and at a very low level (0.1 to 0.3 mm). Higher values (0.2 to 0.8 mm) of PWV are observed during the short summer period. Based on observations over three years, a transmission of around 50% at 350 um is achieved for 75% of the time. The 200-um window opens with a typical transmission of 10% to 15% for 25% of the time. Dome C is one of the best accessible sites on Earth for submillimetre astronomy. Observations at 350 or 450 {\mu}m are possible all year round, and the 200-um window opens long enough and with a sufficient transparency to be useful. Although the polar environment severely constrains hardware design, a permanent observatory with appropriate technical capabilities is feasible. Because of the very good astronomical conditions, high angular resolution and time series (multi-year) observations at Dome C with a medium size single dish telescope would enable unique studies to be conducted, some of which are not otherwise feasible even from space

The effectiveness of virtual environments in developing collaborative strategies between industrial robots and humans

Testing and implementation of Human-Robot Collaboration (HRC) could be dangerous due to the high-speed movements and massive forces generated by industrial robots. Wherever humans and industrial robots share a common workplace, accidents are likely to happen and always unpredictable. This has hindered the development of human robot collaborative strategies as well as the ability of authorities to pass regulations on how humans and robots should work together in close proximities. This paper presents the use of a Virtual Reality digital twin of a physical layout as a mechanism to understand human reactions to both predictable and unpredictable robot motions. A set of established metrics as well as a newly developed Kinetic Energy Ratio metric are used to analyse human reactions and validate the effectiveness of the Virtual Reality environment. It is the aim that Virtual Reality digital twins could inform the safe implementation of Human-Robot Collaborative strategies in factories of the future

Increased Secretion and Expression of Myostatin in Skeletal Muscle From Extremely Obese Women

OBJECTIVE—Obesity is associated with endocrine abnormalities that predict the progression of insulin resistance to type 2 diabetes. Because skeletal muscle has been shown to secrete proteins that could be used as biomarkers, we characterized the secreted protein profile of muscle cells derived from extremely obese (BMI 48.8 ± 14.8 kg/m2; homeostasis model assessment [HOMA] 3.6 ± 1.0) relative to lean healthy subjects (BMI 25.7 ± 3.2 kg/m2; HOMA 0.8 ± 0.2)