摘要:
The invention relates in particular to a portable device (1) for testing an alcoholic beverage in an at least partially transparent container (2), comprising a single light source (32) that emits a monochromatic excitation light beam having a wavelength of between 350 and 650 nanometres; a beam splitter (36) oriented at 45° relative to the emission direction of the light source (32) in order to reflect the excitation light beam; a focussing and collecting lens (40); a positioning device (12) making it possible to orient the light beam coming from the light source (32) in a direction substantially normal to the outer surface of the container (2), the positioning device (12) also making it possible to position the outer surface of the container at a predetermined distance from the focussing lens, the predetermined distance between the focussing lens and the container being selected so that the light beam is focussed in the beverage, at a distance of less than 1 millimetre, preferably less than 500 micrometres, from the wall of the container, the positioning device (12) comprising a through-opening for the passage of the light beam coming from the light source; a filtering device (44) for filtering the fluorescent radiation captured by the focussing lens (40) and transmitted by the beam splitter (36) so as to eliminate wavelengths which are less than or equal to the wavelength of the light beam emitted by the light source; a spectrometry module (50) for producing a signal corresponding to the measured spectrum of the fluorescent radiation of the beverage; and an analysis module (62) for comparing the measured spectrum with a reference spectrum.
摘要:
The invention relates to a method for manufacturing a miniaturized electrochemical cell and to a miniaturized electrochemical cell. The method of the invention comprises preparing at least one inner electrode (1) made of an electron conducting or semi-conducting material M 1 , providing a hollow support (4) made of an electrically insulating material M 6 , this support (4) having at least one internal hollow channel, depositing on the external surface of the support (4) a layer of an electrically conducting material M 2 , forming a template (5) of colloidal particles made of an electrically insulating material M 3 , on the layer of electrically conducting material M 2 , depositing a layer of an electrically conducting material M 4 on the layer of electrically conducting material M 2 , depositing a layer L 1 of an electron conducting or semi-conducting material M 5 on the layer of electrically conducting material M 4 , introducing the at least one inner electrode (1) into the at least one internal hollow channel of the obtained structure, stabilizing the obtained structure at its two open ends with an electrically insulating material M 7 , removing the materials M 2 , M 3 , M 4 and M 6 . The invention finds applications in the field of electrochemistry, in particular.
摘要:
The invention pertains to the field of acoustic attenuation devices made from acoustic metamaterial and relates to a porous bead-type acoustic resonator, characterised in that the Young's modulus of the material of said resonator is lower than 1 GPa, the porosity of said resonator is between 20 % and 50 %, the majority of the pores of said resonator is filled with a gas, and the majority of said pores is interconnected to the outside of said resonator by means of at least one pore.
摘要:
The present invention relates to novel voltage-dependent ion channel fusion subunits, and to a functional bioluminescence resonance energy transfer (BRET) assay for screening in real time and characterizing candidate molecules or physical parameters for their ability to activate or inhibit voltage-dependent ion channels.
摘要:
The invention relates to stable compositions comprising carbon nanotubes and polymer electrolytes, said polymer electrolytes being characterised by the presence of phosphonyl imide or sulphonyl imide or even phosphoric acid functions. The invention also relates to the production of transparent electrodes comprising said compositions of carbon nanotubes and polymer electrolytes.
摘要:
The present invention relates to polymer particles comprising antibiotics which are deliverable in situ, as well as a method of preparation thereof. The present invention also relates to bioactive biomaterials for the controlled delivery of antibiotics comprising support materials having such polymer particles on their surface. The invention also relates to implants, prostheses, stents, lenses or cements as well as any pharmaceutical composition comprising said biomaterials.
摘要:
Ce dispositif d'amplification de puissance reconfigurable (110) comporte, entre une entrée (112) et une sortie (114), une première voie de puissance (115) et une seconde voie de puissance (117), et un moyen de commutation pour sélectionner dynamiquement l'une ou de l'autre des voies de puissance pour faire cheminer une puissance entre l'entrée et la sortie du dispositif. Le moyen de commutation comporte un coupleur de sortie (132) propre à fonctionner dans un mode coupleur ou dans un mode combineur, et un circuit de pilotage (136, 138) du coupleur de manière à le faire fonctionner soit en mode coupleur, pour que le chemin de puissance passe par la seconde voie de puissance, soit en mode combineur pour que le chemin de puissance passe par la première voie de puissance. Application à un circuit intégré en technologie hybride ou MMIC.
摘要:
The system comprises: - a set of at least two electric current generators (101) - at least one capacitor (102) - activation/deactivation means (103) for activating/deactivating said electric current generators (101); the means for generating electric current being connected together in parallel and the capacitor being connected in series with the electric current generators, the activation/deactivation means controlling said generators (101) by means of a digital flow making it possible to control the intensity of the electric current entering said capacitor (102) generating, at the terminals of said capacitor, a trapezoidal voltage signal, said analogue signal being reconstituted by interpolating said trapezoidal signal.