摘要:
The invention relates to a method for producing carbon electrodes by deposition on a substrate, to produce a fuel cell. The method comprises the steps of alternately and/or simultaneously depositing porous carbon and a catalyst onto the substrate by plasma spaying in a vacuum chamber. The catalyst is used to accelerate at least one of the chemical reactions that takes place in the fuel cell. The thickness of each layer of porous carbon is chosen so that the catalyst deposited on this carbon layer is distributed essentially throughout this layer, thereby by providing a layer of catalyzed carbon. The total thickness of catalyzed carbon in the electrode is less than 2 micrometers, and preferably equal to no more than 1 micrometer.
摘要:
The method of authorizing the transmission of a message comprises requesting the transmission of a message from a calling party to a called party and presenting a plurality of audiovisual media elements to the calling party, one of which is representative of a physical characteristic of the called party. The other audiovisual media elements are similar in form to the media element representative of the called party. The calling party selects one audiovisual media element from the presented media elements. The transmission of the message from the calling party to the called party is authorized only in the case where the selected audiovisual media element is representative of the called party.
摘要:
A planar sheet comprising, on a first surface of the sheet, at least one printed mark, and on a second surface of the sheet, opposite the first surface, at least one invisible printed mark vertically adjacent to the mark printed on the first surface. In at least one pair of vertically adjacent marks formed on the opposite surfaces, at least one of the marks of the pair has unique content. At least one invisible mark can be a two-dimensional barcode and/or at least one invisible mark can be a copy-protection mark. The content of at least one mark can be representative of the position of an invisible mark on the sheet.
摘要:
A smart stuffed toy includes a head portion, a torso portion and four limbs. An air flow ventilation device is embedded within the torso portion of the smart stuffed toy to provide air circulation and reduce the settlement of carbon dioxide. The air ventilation device comprises no blades or safe fan blades. Preferably, the front torso surface covering the air flow ventilation device is made of material different from the remaining surfaces of the smart stuffed toy.
摘要:
The invention relates to an electric generator sensitive to ionizing radiation produced by the reverse mounting of a diode in parallel between a reverse polarization stack and a pulse converter or only with a pulse converter. A generator is thus provided that can be used inside a spacecraft or in the atmosphere by using cosmic radiation, or in an environment containing ionizing radiation such as in the medical or nuclear fields, and which is preferably directly mounted on a printed circuit board receiving a remote sensor.
摘要:
A system and method for collecting and processing data over a communications network. A data mining marshaller module associates each plugin to a particular data source and manages the plugin to periodically retrieve unstructured data from the data source based on a plurality of data items to be monitored on behalf of a plurality of users. The plugins convert unstructured data received from the data sources to structured data and the data marshaller module stores the structured data in a database. This enables the system and method to aggregate and display the structured data in multiple graphical representations according to the user's preference.
摘要:
The invention essentially relates to a surgical needle (17) comprising a long hollow body (18) and two ends (19, 20). The body (18) comprises a ventral wall (21) and a dorsal wall (22) which are connected to one another. According to the invention, the dorsal wall (22) and the ventral wall (21) extend along the long axis of the needle (17). Each of the two ends (19, 20) comprises a hollow beveled tip (23, 24). The needle (17) also comprises a hole (25) which is provided in the dorsal wall (22) of the body (18) and a slit (26) which is provided in the ventral wall (21). In this way, a suture (30) can slide inside the hollow body (18) of the needle, the suture being retained in position by the knot (29) or means for stopping thereof. For said purpose, the smallest diameter (27) of the hole (25) is greater than the largest width (28) of the slit (26).
摘要:
The calibrating breathalyzer comprises an alcohol sensor, a non-volatile memory, a processing unit or processor, a display and a housing to house these components. The processing unit can calibrate the breathalyzer using the user's body as a simulator based on the user's metabolism rate, type and amount of alcohol consumed by the user. The processing unit determines a sample time to receive a breath sample from the user based on a time to a predetermined calibration point from the drinking start time calculated using the user's metabolism rate and the determined maximum alcohol level. The BAC % measurement based on the user's breath sample at the sample time is used as a reference point in calibrating the breathalyzer.
摘要:
The invention relates to the detection of liquid in a cavity of a structure, e.g. a sandwich-structure cell with honeycomb core and carbon fiber composite coating. The structure is subjected to a mechanical vibration, at a frequency fm in the audible range, by an excitation wave, the area being explored is subjected to an incident electromagnetic wave and the reflected electromagnetic wave is analyzed to deduce therefrom the presence or the absence of liquid in cavities. The Faraday wave induced on the surface of the liquid in the cavity comprises subharmonic frequencies of fm which modulate the reflected electromagnetic wave and make it possible to identify the presence of liquid. A detection apparatus comprises an excitation wave generation device for generating the vibration excitation wave, an electromagnetic wave generation device for generating the incident electromagnetic wave, a measuring device for detecting and measuring the reflected electromagnetic wave, and a signal processor.