Abstract: A conversion device includes a primary side circuit, a secondary side circuit, a transformer, and a control circuit. The primary side circuit includes a primary side switch and is configured to receive an input voltage. The secondary side circuit outputs an output voltage to a load. The transformer comprises a primary winding and a secondary winding, the primary winding is electrically coupled to the primary side circuit and the secondary winding electrically coupled to the secondary side circuit. The control circuit is configured to control a peak value of the current of the primary side switch, to be limited in a band range.

Abstract: A heat dissipation system for a high-speed train running in a low-vacuum tube is provided. Component groups that provide power and resistance for the movement and stop of a train are provided at a periphery, close to the train, in a low-vacuum tube. The component group is provided with a group A cooling assembly. The group A cooling assembly includes a group A cooling-type heat exchanger and/or a group A nozzle assembly attached to the back of the component group. Since the friction between the train running at high speed and the air in the low-vacuum tube and the operation of the key equipment in the low-vacuum tube will generate a lot of heat, the group A cooling assembly in the component group in the low-vacuum tube exchanges the heat with the air in the low-vacuum tube.

Abstract: A method for determining a location of a disturbance in a power system is provided. The method includes receiving data from a plurality of sensors distributed across the power system; determining, with one or more processors, for each sensor, an extremum of the data corresponding to the sensor; interpolating, with the one or more processors, the extrema; and presenting, on one or more display units, a location corresponding to a global maximum of the interpolated extrema as the location of the disturbance. The method may further include, if a difference between the largest extremum and each of remaining extremum is greater than a predetermined threshold, skipping the interpolating step and the presenting step, and presenting a location of the sensor corresponding to the largest extremum as the location of the disturbance.

Abstract: A method for determining a location of a disturbance in a power system is provided. The method includes receiving data from a plurality of sensors distributed across the power system; determining, with one or more processors, for each sensor, an extremum of the data corresponding to the sensor; interpolating, with the one or more processors, the extrema; and presenting, on one or more display units, a location corresponding to a global maximum of the interpolated extrema as the location of the disturbance. The method may further include, if a difference between the largest extremum and each of remaining extremum is greater than a predetermined threshold, skipping the interpolating step and the presenting step, and presenting a location of the sensor corresponding to the largest extremum as the location of the disturbance.

Abstract: A controller comprising one or more control units, one or more triggering components arranged on the one or more control units, wherein the one or more triggering components are used for triggering the one or more control units to generate a corresponding control instruction, thereby controlling operations of the ultrasonic diagnosis detector, wherein at least one of the one or more control units is configured to be fixed on a portion of a body and/or a probe of the ultrasonic diagnosis detector.

Abstract: An improved platinum and method for manufacturing the improved platinum wherein the platinum having a fractal surface coating of platinum, platinum gray, with a increase in surface area of at least 5 times when compared to shiny platinum of the same geometry and also having improved resistance to physical stress when compared to platinum black having the same surface area. The process of electroplating the surface coating of platinum gray comprising plating at a moderate rate, for example at a rate that is faster than the rate necessary to produce shiny platinum and that is less than the rate necessary to produce platinum black. Platinum gray is applied to manufacture a fuel cell and a catalyst.

Abstract: In electrically stimulating neural tissue it is important to prevent over stimulation and unbalanced stimulation which would cause damage to the neural tissue, the electrode, or both. It is critical that neural tissue in not subjected to any direct current or alternating current above a safe threshold. Further, it is important to identify defective electrodes as continued use may result in neural and further electrode damage. The present invention presents system and stimulator control mechanisms to prevent damage to neural tissue.

Abstract: The present invention provides an implantable electrode with increased stability having a clustered structure wherein the surface of the electrode is covered with a material comprising openings which are filled with sticks or posts. The present invention provides an implantable electrode with increased stability wherein the surface is of the electrode comprises mesh grids which are filled with sticks which are filed with a conducting or insulating material. The present invention provides a method of manufacturing an electrode with increased stability, comprising: depositing a metal layer on an base layer; applying photoresist layer on the metal layer; patterning the photoresist layer providing openings; electroplating the openings with metal; removing the photoresist layer leaving spaces; and filling the spaces with polymer.

Abstract: The present application deals generally with the stimulation of neural tissue by electronic means and specifically with controlling the level of electrical stimulation in order to prevent damage to the neural tissue. Methods presented in the disclosure include detecting current leakage via electrode impedance measurement, electrode capacitance measurement, and testing the electrode response to a test current pulse. Apparatus presented in the disclosure include circuitry and systems capable of performing the methods disclosed.

Abstract: In electrically stimulating neural tissue it is important to prevent over stimulation and unbalanced stimulation which would cause damage to the neural tissue, the electrode, or both. It is critical that neural tissue in not subjected to any direct current or alternating current above a safe threshold. Further, it is important to identify defective electrodes as continued use may result in neural and further electrode damage. The present invention presents system and stimulator control mechanisms to prevent damage to neural tissue.

Abstract: The invention is a method of automatically adjusting an electrode array to the neural characteristics of an individual subject. The response to electrical neural stimulation varies from subject to subject. Measure of impedance may be used to predict the electrode height from the neural tissue and, thereby, predict the threshold of perception. Alternatively, electrode height may be measured directly to predict the threshold of perception. Also, impedance measurement may be used to quickly identify defective electrodes and proper electrode placement.

Abstract: An electrode surface coating and method for manufacturing the electrode surface coating comprising a conductive substrate; and one or more surface coatings comprising one or more of the following metals titanium, niobium, tantalum, ruthenium, rhodium, iridium, palladium, or gold, or an alloy of two or more metals, or a combination of two or more alloys or metal layers thereof having an increase in the surface area of 5 times to 500 times of the corresponding surface area resulting from the basic geometric shape.

Abstract: An electrode surface coating and method for manufacturing the electrode surface coating comprising a conductive substrate; a surface coating of platinum having a rough configuration and an increase in the surface area of 5 times to 500 times of the corresponding surface area resulting from the basic geometric shape of the electrode. A method for electroplating an electrode surface with platinum coating having a rough surface, comprising electroplating the surface of a conductive substrate at a rate such that the metal particles form on the conductive substrate faster than necessary to form shiny platinum and slower than necessary to form platinum black.

Abstract: An electrode surface coating and method for manufacturing the electrode surface coating comprising a conductive substrate; and one or more surface coatings comprising one or more of the following metals titanium, niobium, tantalum, ruthenium, rhodium, iridium, palladium, or gold, or an alloy of two or more metals, or a combination of two or more alloys or metal layers thereof having an increase in the surface area of 5 times to 500 times of the corresponding surface area resulting from the basic geometric shape.

Abstract: An electrode surface coating and method for manufacturing the electrode surface coating comprising a conductive substrate; a surface coating of platinum having a rough configuration and an increase in the surface area of 5 times to 500 times of the corresponding surface area resulting from the basic geometric shape of the electrode. A method for electroplating an electrode surface with platinum coating having a rough surface, comprising electroplating the surface of a conductive substrate at a rate such that the metal particles form on the conductive substrate faster than necessary to form shiny platinum and slower than necessary to form platinum black.

Abstract: The invention is directed to a method of bonding a hermetically sealed electronics package to an electrode or a flexible circuit and the resulting electronics package, that is suitable for implantation in living tissue, such as for a retinal or cortical electrode array to enable restoration of sight to certain non-sighted individuals. The hermetically sealed electronics package is directly bonded to the flex circuit or electrode by electroplating a biocompatible material, such as platinum or gold, effectively forming a plated rivet-shaped connection, which bonds the flex circuit to the electronics package. The resulting electronic device is biocompatible and is suitable for long-term implantation in living tissue.

Abstract: An implantable electrode and method for manufacturing the electrode wherein the electrode has a strong, adherent surface coating of iridium oxide or titanium nitride on a platinum surface, which demonstrates an increase in surface area of at least five times when compared to smooth platinum of the same geometry. The iridium oxide coating may be formed on platinum by a physical deposition process, such as sputtering. The process of electroplating the iridium oxide surface coating is accomplished by voltage control processes. A gradient coating of iridium oxide ranging in composition from essentially pure platinum to essentially pure iridium oxide is produced by sputtering.

Abstract: The present invention is a micro-machined electrode for neural-electronic interfaces which can achieve a ten times lower impedance and higher charge injection limit for a given material and planar area.

Abstract: An improved platinum surface coating and method for manufacturing the improved platinum surface coating wherein the platinum surface coating having a fractal surface coating of platinum [“platinum gray”] with a increase in surface area of at least 5 times when compared to shiny platinum of the same geometry and also having improved resistance to physical stress when compared to platinum black having the same surface area. The process of electroplating the surface coating of platinum gray comprising plating at a moderate rate, i.e., at a rate that is faster than the rate necessary to produce shiny platinum and that is less than the rate necessary to produce platinum black.