摘要:
The invention relates to the production of multilayer electrodes on valve metal substrates, through a method comprising the application in alternate cycles of a solution containing precursors of noble metals, and of a second solution containing transition metals capable of forming protective coatings. The resulting electrodes are useful in several applications, among which copper and other metal plating and the treatment of waste or tap water.
摘要:
The invention relates to the production of multilayer electrodes on valve metal substrates, through a method comprising the application in alternate cycles of a solution containing precursors of noble metals, and of a second solution containing transition metals capable of forming protective coatings. The resulting electrodes are useful in several applications, among which copper and other metal plating and the treatment of waste or tap water.
摘要:
It is described an electrolysis cell wherein the anodic dissolution of metals is carried out, in particular of metals characterised by a relatively high oxidation potential, such as copper, or metals with high hydrogen overpotential, for example tin, aimed at restoring both the concentration of said metals, and the pH in galvanic baths used in electroplating processes with insoluble anodes. The cell of the invention comprises an anodic compartment, wherein the metal to be dissolved acts as a consumable anode, and a cathodic compartment, containing a cathode for hydrogen evolution, separated by a cation-exchange membrane. The coupling of the cell of the invention with the electroplating cell allows a strong simplification of the overall process and a sensible reduction in the relevant costs.
摘要:
The invention relates to a cylindrical electrode for gas evolution comprising a non-activated conductive core whereto an easily detachable and replaceable component provided with catalytic activation is secured, for instance an undulated sheet or a mesh.
摘要:
The invention relates to a cylindrical electrode for gas evolution comprising a non-activated conductive core whereto an easily detachable and replaceable component provided with catalytic activation is secured, for instance an undulated sheet or a mesh.
摘要:
Embodiments of the present invention may be used to generate oscillating signals. One embodiment of the present invention includes a circuit that receives a differential signal to be divided. The circuit converts the differential signal into an injection signal. The injection signal is coupled to an oscillator, and the oscillator generates an output signal having a frequency that is a fraction of the frequency of the differential input signal. In another embodiment, the present invention includes a MIMO wireless communication system. The MIMO system may use the divider circuit to divide a local oscillator signal with reduced common mode distortion.
摘要:
A multi-service transport apparatus for integrated transport networks that may have an electrical matrix, termination function means handling signals incoming at said apparatus input, a plurality of termination function means interfacing different layers, and adaptation function means. The termination function means handling incoming signals are implemented in input/output port devices; the termination function means interfacing different layers and said adaptation function means are implemented in adapter devices. The matrix performs exclusively the switching of the incoming signals that are already terminated and adapted by said input/output port devices and by said adapter devices and it is transparent with respect to the signal format. The switch may have a time division multiplexing matrix provided with a number of matrix inputs and a number of matrix outputs; source address generators, connected to matrix outputs of the time division multiplexing matrix.
摘要:
It is described a finite interelectrodic gap-cell for oxygen evolving-electrochemical processes comprising a package of planar anodes secured to a rack and a package of planar cathodes intercalated to the anodes secured to a frame. The cathode package can be handled separately or jointly with the anode package by means of a lifting device. The cell is particularly useful in metal electrowinning processes and in softening processes of calcareous waters by microelectrolysis.
摘要:
An articulated rod with assisted regulation for an orthopedic brace comprises portions of rod (15, 16) joined by at least one hinge device (19) for a rotational movement around a first rotation axis (21) of the brace and firmly connected to elements of an orthopedic brace (12, 13), wherein the hinge device (19) comprises a shell (23) and a pair of disks (24) firmly applied to the portions of rod (15, 16), wherein each of the disks (24A, 24B) has a perimeter with an increasing diameter equipped with a series of teeth (25), and wherein the disks (24) are superimposed in the shell (23) with opposite toothed profiles (25), which can be integrally rotated together around the rotation axis (21) of the hinge device (19), the shell (23) also comprising a pair of slides (28) superimposed and coplanar with the pair of disks (24), wherein each of the slides (28A, 28B) has a fitting element (29) at one end for the perimetric teeth (25) of the disks (24), and wherein the slides (28) are each coupled with regulation means (35A, 35B, 36A, 36B) for engagement with or disengagement from the disks (24).
摘要:
A vehicular traffic light lamp includes a higher part defining final optic capacities of the lamp and composed by a truncated pyramid aluminum heat sink with plural sides, a higher area, and a lower plate; a high power led situated on each side of the higher part; a lower part comprised of an electronic component and a lampbase; and a transparent plastic cover.