A5026113586- Advanced DC-DC Converters
- Rheumatoid Arthritis Research and Therapies
- Spondyloarthritis Studies and Treatments
- Multilevel Inverters and Converters
- Global trade and economics
- HVDC Systems and Fault Protection
- Firm Innovation and Growth
- Silicon Carbide Semiconductor Technologies
- Advanced Battery Technologies Research
- Experimental Behavioral Economics Studies
- SARS-CoV-2 and COVID-19 Research
- COVID-19 Clinical Research Studies
- Decision-Making and Behavioral Economics
- Electromagnetic Compatibility and Noise Suppression
- Fibromyalgia and Chronic Fatigue Syndrome Research
- Labor market dynamics and wage inequality
- Microgrid Control and Optimization
- Long-Term Effects of COVID-19
- Banking stability, regulation, efficiency
- Real-time simulation and control systems
- Peripheral Neuropathies and Disorders
- Taxation and Compliance Studies
- Electric and Hybrid Vehicle Technologies
- Psoriasis: Treatment and Pathogenesis
- Economic Theory and Policy
Laboratoire Plasma et Conversion d'Energie
2012-2024
École Nationale Supérieure d'Électrotechnique, d'Électronique, d'Informatique, d'Hydraulique et des Télécommunications
2008-2024
Institut National Polytechnique de Toulouse
2008-2024
Inter-American Development Bank
2024
Université de Toulouse
2010-2023
Centre National de la Recherche Scientifique
2004-2023
Universidad de Los Andes
2010-2022
Université Toulouse III - Paul Sabatier
2010-2022
Universidad de Los Andes
2021-2022
University of Chicago
2021
To describe the safety of vaccines against SARS-CoV-2 in people with inflammatory/autoimmune rheumatic and musculoskeletal disease (I-RMD).Physician-reported registry I-RMD non-inflammatory RMD (NI-RMDs) patients vaccinated SARS-CoV-2. From 5 February 2021 to 27 July 2021, we collected data on demographics, vaccination, diagnosis, activity, immunomodulatory/immunosuppressive treatments, flares, adverse events (AEs) breakthrough infections. Data were analysed descriptively.The study included...
To describe the prevalence of fibromyalgia (FM) in an axial spondyloarthritis (axSpA) population and to confirm that concomitant FM had a negative impact on tumour necrosis factor blockers' (TNFb) response.Prospective observational study with two visits 3 months apart.Adult patients AxSpa initiating TNFb.FM was defined by Fibromyalgia Rapid Screening Tool (FiRST) at baseline also sustained positive FiRST (both visits) fulfilment 1990 American College Rheumatology criteria for FM.Prevalence...
To examine the course of interstitial lung disease associated with rheumatoid arthritis (RA-ILD) in France on treatment Janus kinase inhibitors (JAKis) using MAJIK-SFR registry. Prospective national multicentre observational study identifying patients RA-ILD from Pulmonary assessment data were collected at JAKi initiation and follow-up visits (6 months, 12 months a median 21 postinclusion), including chest high-resolution CT (HRCT), pulmonary function tests (forced vital capacity (FVC)...
Future aircrafts will be composed of high number power converters having always higher density and efficiency. In order to increase performance such converters, a good option is the use silicon carbide (SiC) transistors. Although these components reduce losses when compared their silicon-based counterpart, they switching speed overshoot during commutation, which can cause serious electromagnetic interference issues overvoltages on loads connected converters. For that reason, modules...
In AC rail networks, the new locomotives using four-quadrant rectifiers are responsible for low frequency disturbances on overhead line voltage. recent years, around world, interactions between and power supply have been observed. some sectors of 25kV-50Hz French network, serious affected system operation while flicker was observed upstream electrical network. To prevent such dysfunctions, an analysis method is proposed. Any locomotive or multiple-unit train characterized as admittance...
In the context of aviation, this article looks at replacing a ram air turbine (RAT) with hybrid proton-exchange membrane (PEM) hydrogen/oxygen (H<sub>2</sub>/O<sub>2</sub>) fuel cell and ultracapacitor system, starting from theoretical perspective. The structure we propose has two static power converters: one associated cells other ultracapacitors. energy management principle presented (frequency sharing) enables types control. First, converter manages voltage dc bus, then ultracapacitors...
Objectives To evaluate the prevalence of obstructive sleep apnoea syndrome (OSAS) in a population patients treated for an advanced oropharyngeal cancer (AJCC Stage III or IV), depending on treatment strategy, and to its impact quality life. Design Prospective cohort study. Setting University Teaching Hospital La Conception, Marseille, France. Participants Fifty‐one disease‐free were included. Forty‐one received combined chemoradiotherapy, while 10 by surgery followed chemoradiotherapy. Main...
How much can employers in low and middle-income countries suppress wages below marginal productivity? Using plant customs data from Colombia, we exploit pre- determined variation across plants sales export destination combined with exchange rates to generate plant-specific shocks revenue productivity labor demand. We estimate a firm-level supply elasticity of around 2.5, implying that workers produce about 40% more than their wage level. Our results indicate Colombian US manufacturers have...
Power converters will only be effectively used in future aircrafts if they are compact, efficient and reliable. All these aspects can improved by the use of disruptive technology such as so-called Wide Bandgap (WBG) semiconductors made Silicon Carbide (SiC) or Gallium Nitride (GaN). These components switch much faster than their silicon counterpart, which reduce converter losses also decrease differential mode filter given increase switching frequency. However, a fast commutation increases...
Credit reporting systems have become a widespread tool to assess the creditworthiness of prospective borrowers. This paper studies implications for credit access using them in contexts where exogenous and transitory shocks affect income repayment. Using novel administrative data set with near universe formal loans coffee producers Colombia together from close 1,200 rainfall stations, I show that weather lead lower rates loan repayment, scores, more frequent denials future applications....
This paper highlights shortcomings of standard methods production-function estimation when quality or variety vary at the firm level and develops a new approach that can be applied in such contexts.We take advantage input output quantity data from Colombian producers rubber plastic products.Using constant-elasticity-of-substitution aggregators outputs material inputs level, we derive simple expression showing how choices may bias estimators.Using real exchange rates variation "bite" national...
This paper develops a new method for estimating production-function parameters that can be applied in differentiated-product industries with endogenous quality and variety choice. We take advantage of data on physical quantities outputs inputs from the Colombian manufacturing survey, focusing producers rubber plastic products. Assuming constant elasticities substitution within firms, we aggregate firm-product to firm level show how choices may bias standard estimators. Using real exchange...
Dynamic interactions between AC railway electrification systems and traction unit power converters can result in low frequency oscillation (LFO) of the contact-line voltage amplitude, which lead to a outage substation shutdown train traffic. Several system parameters influence stability system, including length such as transformer leakage inductance, DC-link capacitance, control bandwidths synchronization systems. This paper focuses on these LFO. The methodology is based frequency-domain...
This paper proposes an electric powertrain architecture for future hybrid aircrafts which structure is only composed of permanent magnet synchronous machines both generators (PMSG) and motors (PMSM). The direct connection through AC bus a PMSG with one or several PMSMs involves the suppression power electronics usually embedded in powertrains. idea clearly to simplify significantly reduce weight propulsive device, “weight being prime enemy aeronautics”. However, between generation propulsion...
To investigate the frequency and factors associated with disease flare following vaccination against SARS-CoV-2 in people inflammatory/autoimmune rheumatic musculoskeletal diseases (I-RMDs). Data from European Alliance of Associations for Rheumatology Coronavirus Vaccine physician-reported registry were used. Factors patients I-RMDs investigated using multivariable logistic regression adjusted demographic clinical factors. The study included 7336 I-RMD, 272 (3.7%) experiencing flares 121...
Do agricultural producers forgo otherwise profitable investments due to civil conflict?Answering this question is crucial our understanding of the costs violence, but requires ability measure farmers’ willingness invest and access exogenous variation in conflict intensity. We exploit a unique administrative dataset from Colombia’s largest bank 2016 demobilization agreement between Colombian government insurgent group FARC overcome these challenges. A difference-in-difference analysis yields...