Search results for "DUI"

Study of economic availability related to rare metals in the context of the energy transition

2014

A growing number of academic studies and international organizations reports have noticed an increasing dependency of new energy technologies on a specific class of natural resources often called minor metals. For several years, worries about economic availability of these metals in order to realize the energy transition have appeared. This thesis aims at underline the broader risks and constraints involved by general use of these metals in new energy technologies. A first part of this thesis is devoted to theories and indicators related to the depletion of non renewable resources. This part also shows that minor metals share many characteristics and that they can form a group of metal cons…

La vie personnelle du salarié à nouveau sous l'emprise de sa vie professionnelle

2004

International audience

Participation des facteurs nutritionnels et environnementaux au vieillissement de la rétine et aux rétinopathies liées à l’âge

2012

Aging is defined by all the physiological processes that alter the structure and functions of the body. With advanced age, aging of the human retina can evolve into pathological forms, agerelated macular degeneration (AMD) or diabetic retinopathy (DR). The mechanisms involved in the transition from normal aging to a pathologic state are poorly understood. Oxidative stress and advanced glycation end-products are promoting factors for aging of the retina. Meanwhile, epidemiological studies suggest that a diet rich in long-chain omega-3 polyunsaturated fatty acids (LC-PUFA) such as EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid), potentially protects against the development of AMD a…

Simulation d’un Affichage Tête Haute - Réalité Augmentée pour l’aide visuelle à la conduite automobile

2016

Head-Up Display is the emerging solution for visual aid while driving a car, especially during reduced visibility conditions, such as bad weather or when the road is poorly lighted. The HUD device allows to project virtual information in the central field of view of the driving scene, enabling the driver to keep his attention on the road. The visual perception of the driver is therefore augmented, with a coexistence between the real and virtual world. However, it is necessary to ensure an optimal setting in order to guarantee the good perception of the virtual information, and allow drivers to take appropriate actions at the right moment. This thesis project is dedicated to study three impo…

Rice cooking and sensory quality

2019

International audience; This chapter provides a state-of-the-art review of the diversity and dynamics of consumer demand with respect to the eating quality of rice worldwide. Quality includes both tangible measurable factors (rice characteristics) and the context of consumption. The main sensory attributes evaluated around the world are described, and their relationship with the diversity of consumer demand is discussed. Instrumental methods for predicting quality measured on either raw or cooked grains are reviewed. The changes that occur in the rice grain during cooking are described along with a modeling approach able to predict the changes and their spatial distribution in the rice grai…

Effects of garlic powders with varying alliin contents on hepatic drug metabolizing enzymes in rats

2003

International audience; The anticarcinogenic effect of garlic has been demonstrated in both epidemiologic and experimental studies. In this study, possible mechanisms involved in the anticarcinogenic effect of garlic consumption were assessed by determining its capacity to alter drug metabolizing enzymes, in relation with its alliin content. Rats were fed a diet for 2 weeks containing 5% garlic powders produced from bulbs grown on soils with different levels of sulfate fertilization and therefore containing differing amounts of alliin. Activities of several hepatic enzymes, which are important in carcinogen metabolism such cytochromes P450 (CYP) and phase II enzymes, were determined. Garlic…

Assessment wine aroma persistence by using an in vivo PTR-ToF-MS approach and its relationship with salivary parameters

2019

To better understand wine aroma persistence, the nasal cavity of nine volunteers was monitored by Proton Transfer Reaction-Time of Flight-Mass Spectrometry (PTR-ToF-MS) after they rinsed their mouths with three rosé wines (one control and the same wine supplemented with two tannin extracts) during four minutes. Wines were aromatised with a mixture of five target aroma compounds. Results showed that wine aroma persistence was highly compound-dependent: while esters disappeared very fast, other compounds such as linalool remained in the oral cavity for longer times after wine expectoration. A low effect of tannins (at 50 mg/L) on nasal cavity parameters was observed, with the exception for th…

Santé et commerce international. Contribution à l'étude de la protection des valeurs non marchandes par le droit du commerce international

2006

Polybutylene succinate artificial scaffold for peripheral nerve regeneration

2021

Regeneration and recovery of nerve tissues are a great challenge for medicine, and positively affect the quality of life of patients. The development of tissue engineering offers a new approach to the problem with the creation of multifunctional artificial scaffolds that act on various levels in the damaged tissue, providing physical and biochemical support for the growth of nerve cells. In this study, the effects of the use of a tubular scaffold made of polybutylene succinate (PBS), surgically positioned at the level of a sciatic nerve injured in rat, between the proximal stump and the distal one, was investigated. Scaffolds characterization was carried out by scanning electron microscopy …

Dynamic reconfiguration of electrical connections for partially shaded PV modules: Technical and economical performances of an Arduino-based prototype

2018

The partial shading phenomenon is a well known problem of photovoltaic plants. Partial shading leads to undesirable effects such the electrical mismatch, the generation of hot spots, and generally the decrease of production of electric energy. To mitigate the last effect, a dynamic reconfiguration of the electrical connections between modules was taken into account. In this paper, starting from an already developed system for a small-scale photovoltaic plant reconfiguration, the study of the economical benefits of the employment of a reconfigurator are traced. Five different incentive policies of diverse Countries have been considered to evaluate the increase of Net Present Value of system …