摘要:
The invention provides a turbine blade retention device installed in an axially extending gap between the blade root bottom and the slot floor. The retention device has two parts: a blade root retention clip and a spacer bar. The clip has an elongated web of a selected web thickness and width less than the width of the slot floor. The clip includes a forward and a rearward transverse flange extending radially outwardly and extending laterally from forward and rearward ends of the web. The flanges serve to engage the forward and rearward faces of the rotor hub disk respectively, and to engage forward and rearward faces of an associated blade root. The height of at least one flange is less than the gap depth to permit conventional sliding installation the blade root. The spacer bar is installed in the gap between the clip and slot floor to hold the clip radially outward in engagement with the forward and rearward faces of the blade root. The spacer bar has a thickness that, together with the clip web thickness, substantially equals the gap depth. Preferably, the spacer bar extends axially through the gap and has forward and rearward bent over tabs for engaging the forward and rearward faces of the rotor disk hub.
摘要:
A method and a system for personalizing electronic elements, by replacing, in a non-volatile memory of each of the electronic elements a first secret key with a second secret key, by a secure authentication module automatically generating the second key after having restored the first one from an identifier of the element being personalized, including conditioning, on the authentication module side, the provision of the second key to a current element to the reception of a message confirming the key replacement of at least one preceding element.
摘要:
A device is provided for authorizing the use of a selected function from among at least two functions of the device. The device includes storage for storing a function-specific voice pattern that is linked to the selected function, and a comparator for comparing an external input signal with the function-specific voice pattern. Also provided is a terminal unit for communicating with a device for authorizing use of a selected function of the device, and a communication system that includes a device for authorizing use of a selected function and a terminal unit for communicating with the device. Additionally, there are provided a method for giving a user authorization to use a selected function of a device, and a method for obtaining authorization to use a selected function of a device.
摘要:
A method and a system for checking the atomic character of at least one command executed by a microprocessor of an electronic component including at least one rewritable non-volatile memory, including: selecting a main command including at least one updating of at least one piece of data requiring several write operations in the non-volatile memory; executing this command several times; affecting each execution in one of the write operations, by selecting a different operation each time; and checking, after each affecting, the coherence of the data in the non-volatile memory with respect to at least one predetermined authorized state.
摘要:
A blast nozzle for blowing-off liquids from surfaces, for example from sheet surfaces, has a tubular body, on the outer surface of which converging plate-like lips are provided which extend generally tangentially to form a blow-off slit which runs in an axially-parallel manner to the body. A plate-form cleaning element which may be moved relative to the blow-off slit is located in the body. The cleaning element is attached to a transmission which is adjusted by a drive provided outside the body. According to one embodiment, the cleaning element is a sheet which extends over practically the entire length of the blow-off slit and which may be selectively pushed into, and through, the blow-off slit, whereas according to another embodiment, it is a tongue which lies in the blow-off slit and which may be moved along that slit.
摘要:
The invention concerns a method and a system for customizing electronic components (2), by substituting in a nonvolatile storage each one first secret key (Ks) with a second secret key (Ks′), using a secure authentication module (1) automatically generating said second key after reconstructing the first key from an identifier of the component during customization, which consists in conditioning, on the authentication module side, the supply of the second key for a current component upon reception of a confirmation message for key substitution of at least one previous component.
摘要:
A receiver 100 is provided. The receiver 100 comprises an in-phase analog-to-digital converter 112 operable to detect a saturation condition of the in-phase analog-to-digital converter 112 and to adjust the amplitude of a in-phase signal processed by the in-phase analog-to-digital converter 112 to remove the in-phase analog-to-digital converter 112 from the saturation condition and a in-phase digital filter 114 operable to adjust a gain applied to a digital input to the in-phase digital filter 114 from the in-phase analog-to-digital converter 112, the adjustment of the gain substantially inversely proportional to the adjustment of the amplitude of the in-phase signal processed by the in-phase analog-to-digital converter 112. In an embodiment, the receiver 100 also comprises a quadrature path that is substantially similar to the in-phase path, and the in-phase path and the quadrature path comprise a direct conversion receiver. In an embodiment, the in-phase analog-to-digital converter 112 and the in-phase digital filter 114 comprise an intermediate frequency receiver.
摘要:
A system and method implement very high data rate baseband DACs suitable for wireless applications related to new standards (e.g. Ultra-Wide Band) using CMOS processes allowing an integrated solution with the deep-submicron CMOS digital baseband. A single CMOS block working at full speed is discarded in favor of several blocks, each working at a fraction of the original data rate.
摘要:
The invention relates to an installation for zinc coating one or both sides of continuous steel strip. In order to retain short change-over times when changing from one process to the other, the invention proposes to flange-mount in readily releasably manner a housing (2a, 2b), with guide rolls (3a, 3b) mounted therein, on the duct (5) leading from the furnace to the zinc bath and to design this housing so that it can be interchanged with a support for the guide roll (10) during two-sided zinc coating, making use of the mounting at the duct (5).
摘要:
A Nickel iron battery using a mono-block housing that has cells with leak-proof intercell connections. The intercell connections use compressed grommets to prevent fluid transfer between the cells. Each cell generates a charge that can be connected in series or parallel as required. The cells use an electrode plate that enables a manufacturing process which yields higher efficiency, higher throughput, and significantly lower battery cost. The anode composition of the cells has iron powder to increase cathode utilization, therefore lowering cathode material usage and lowering production cost.