463results about How to "Avoid ablation" patented technology

Apparatus for ophthalmic surgery, especially non-penetrating filtration surgery, comprising a laser source that ablates sclera tissue at steps of intermediate thickness. Optionally, the beam is scanned using a scanner and its results viewed using an ophthalmic microscope.

This invention is an apparatus for ophthalmic surgery comprising a laser source (52) that generates a laser beam (54); a scanner (56) comprising an input for said laser beam, and an output of a spatially scanned laser beam (54); controlling circuitry that drives said scanner (56) to remove tissue in a desired pattern on the eye (40); a microscope (58) for viewing said tissue removal; and a beam combiner (70) comprising a first input for a line of sight of said microscope (58) and second input for said spatially scanned beam (54).

Belonging to the technical field of lightning protection, the invention relates to an insulating and thermal conductive ablation resistant adhesive and application thereof in lightning protection. The adhesive is mainly prepared from the following raw materials: 20-100% and not up to 100% of a mixture of high temperature resistant resin and a curing agent, and 0-80% and greater than 0% of an insulating and thermal conductive ablation resistant inorganic filler. After curing, the electrical conductivity of the adhesive is in the range of 10<-8>-10<-20>S/m, the DC breakdown voltage in the air is in the range of 30-300kV/mm, the thermal conductivity is in the range of 0.2-3.0W/(m.K), and the ablation resistant temperature is up to 300DEG C. A certain thickness (30-250micrometer) of the insulating and thermal conductive ablation resistant adhesive is employed to stick a conductive film to the surface of a continuous carbon fiber laminated composite material part, thus preventing conduction of current to the continuous carbon fiber laminated composite material part and improving the lightning protection effect of the conductive film.

The invention discloses an active carbon activation furnace and an active carbon production method and relates to the field of active carbon production equipment and active carbon production technologies. The safety of an active carbon production process can be improved to a certain extent; the activation furnace works stably for a long term; and the quality and the productive capacity of produced active carbon are greatly improved. The active carbon activation furnace comprises a furnace body, a material entry device and a discharge mechanism, wherein the furnace body is internally provided with a burning passage communicated with the interior of the furnace body; air is admitted to the burning passage; the interior of the furnace body is in a negative pressure state; and air pressure in the burning passage is lower than that in the furnace body. The active carbon production method comprises the following steps: A: arranging the burning passage and material passages, B: admitting steam into the material passages, C: leading liberated gas in the material passages into the burning passage, D: heating materials in the material passages, and E: admitting flue gas generated by burning into a steam generator for heat exchange. The active carbon activation furnace and the active carbon production method are mainly used for active carbon production.

The invention provides a clutch temperature protection control method and system for an automatic wet-type double-clutch gearbox. The signals of the conveying torque of a clutch, the rotating speed of a clutch driving disk, the rotating speed of a clutch driven disk, the oil temperature of a gearbox body and the pressure of clutches are used for calculating to obtain the temperature of the clutches, and whether a clutch temperature protection mechanism is started or not is judged according to the calculated and obtained temperatures of the clutches, so that the ablation of the clutches due to too high temperatures is avoided, and the service lives of the clutches and the gearbox body can be prolonged easily.

The invention discloses a method for calculating the switching-off and switching-on time of a breaker and the stroke of a moving contact of the breaker. According to the method, first, a switching-on operating coil starts to be powered on after the breaker receives a switching-on instruction, the coil generates sufficient electromagnetic force to push an iron core to move along with increasing of current so that an energy storage mechanism can be started to release energy to generate acting force for driving the moving contact to move, then, the moving contact can make contact with a fixed contact and arrive at a position where switching-off is just achieved at the moment, and the stoke of the moving contact is called as idle stroke before; second, the moving contact continues moving on to arrive at the switching-on position and keeps a switching-on state with a mechanism, and the process is called as over-stroke; the stroke distance of the moving contact is the sum of the idle stroke distance and the over-stroke distance; in the switching-off process, the first step and the second step are repeated in the same way. The method is simple in algorithm, easy to realize in an embedded system, capable of lowering cost effectively and beneficial to miniaturization of the system. The moment when the moving contact of the breaker starts to move and the moment when the moving contact of the breaker stops moving can be accurately acquired.

A three-level light-gas gun driven by compressed nitrogen comprises a primary gas chamber, a primary pump tube, a secondary gas chamber, a secondary pump tube, a tertiary gas chamber and a transmitting tube. The primary gas chamber is connected with the primary pump tube, and a quick opening valve is arranged between the primary gas chamber and the primary pump tube; the primary pump tube is connected with the secondary gas chamber; the secondary gas chamber is connected with the secondary pump tube, and a secondary diaphragm is arranged between the secondary gas chamber and the secondary pump tube; the secondary pump tube is connected with the tertiary gas chamber; and the tertiary gas chamber is connected with the transmitting tube, and a tertiary diaphragm is arranged between the tertiary gas chamber and the transmitting tube. A three-level driving mode is adopted, energy utilization efficiency among levels is improved, a severe gas environment in a gun body is improved, and ablation risks of the gun body are reduced; the secondary gas chamber and the tertiary gas chamber are of straight barrel type structures or barrel structures with large cone angles, and the energy utilization efficiency is improved; and a replaceable ablation ring is arranged at the front end of the transmitting tube, the ablation risks of the gun body are reduced, and experimental cost of super-speed transmission is greatly reduced.

The invention discloses an anode of a supersonic plasma torch, and the supersonic plasma torch. Mainly, the conventional laval-type anode is divided into two parts, wherein one part near a cathode body is called as a basic anode; the other part far away from the cathode body is called an auxiliary anode; and the two parts are isolated by a high-temperature-resistant insulation ceramic chip. The cathode body is fixed on a conductive torch core and is sequentially connected with the basic anode and the auxiliary anode in an axial direction. When the anode works, an arc root is transferred from the basic anode to the auxiliary anode, so that a nozzle of the laval-type basic anode with a complicated structure is protected while an electric arc is lengthened. Therefore, the voltage is increased under the condition that the working current is unchanged. As a result, the energy utilization rate is improved.

The invention discloses a regenerative device and method for desulfurized and denitrified active coke. The regenerative device comprises a regenerative reactor, wherein the regenerative reactor is composed by the connection of an inlet blocking valve, a feeding bin, a heating bin, a regenerative bin, a precooling bin, a cooling bin, a discharging bin, and an outlet blocking valve in sequence; a heating heat exchanger component is arranged in the heating bin; a precooling heat exchanger component is arranged in the precooling bin; a cooling heat exchanger component is arranged in the cooling bin; a nitrogen carrying bin for inletting ammonia nitrogen gas to improve the desulfurization and denitrification performances of regenerated active coke during regeneration process is arranged between the precooling bin and the cooling bin. The regenerative method adopts the regenerative device to conduct the regeneration of the active coke. According to the invention, more reasonable utilization of energy can be realized in the regeneration process to allow the desulfurization and denitrification performance of the regenerated active coke to obtain further improvement; on-line modification can be conducted on the active coke through the nitrogen carrying bin to keep high desulfurization and denitrification performance of the active coke.

The invention encompasses a device, system and methods for ablating tissue, where a ablating device includes an elongated shaft having a flexible distal end, and at least one ablation element and at least one electrode detecting electrical signals of the heart, such that a user can assess whether the at least one ablation element is located on a tissue of the atrioventricular (AV) groove of a patient's heart.

An optical element includes a first liquid, a second liquid, and a container, wherein the first liquid and the second liquid substantially differ in refractive index and are immiscible, the first liquid and the second liquid are hermetically placed in the container so that an interface between the first liquid and the second liquid forms a specific shape, the shape of the interface between the first liquid and the second liquid is changed by applying a voltage between the first liquid and the second liquid through electrodes formed in the container, and the container is (1) a resin container of which an inner surface portion of a container wall has a resin phase with a fluorine atom content higher than that of an internal portion of the container wall, (2) a container of which a top portion and a bottom portion are formed of a resin composition including a resin and a hindered amine compound having a transmittance of light with a wavelength of 400 nm measured for a 5 wt % chloroform solution using a cell with 10-mm optical path of 90% or more and a molecular weight of 1500 or more, or (3) a container of which an inner surface is coated with a CVD film formed of a fluorocarbon compound. According to the present invention, an optical element can be provided of which the refractive power for light passing therethrough can be efficiently controlled with a small configuration utilizing an electrowetting phenomenon and which allows continuous transmission or concentration of light from a blue laser (short-wavelength laser).

The invention discloses a novel composite contact vacuum arc-extinguishing chamber and a vacuum circuit breaker with the same. The novel composite contact vacuum arc-extinguishing chamber comprises a static side structure portion, a movable side structure portion and a shell structure. The static side structure portion comprises a static side arcing current conducting rod and a static side main conducting rod which is arranged in the static side arcing current conducting rod and is in clearance fit with the static side arcing current conducting rod. A static side arcing magnetic field contact and a static side annular arcing-resisting contact material are sequentially welded at the lower end of the static side arcing current conducting rod. A static side conducting contact is welded at the lower end of the static side main conducting rod. In the arcing process, the static side conducting contact is located inside the static side arcing magnetic field contact all the time, the static side main conducting rod is connected with the static side arcing current conducting rod through a static side small-diameter corrugated pipe, the static side arcing current conducting rod is connected with a cover plate on the upper side of the arc-extinguishing chamber through a static side large-diameter corrugated pipe. A static side compression spring is installed inside the static side large-diameter corrugated pipe. According to the novel composite contact vacuum arc-extinguishing chamber, the problem that the magnetic structural design does not exist in the existing vacuum arc-extinguishing chamber contact design is solved.

The invention provides a planographic printing plate precursor that is capable of providing a planographic printing plate in which ablation at the time of infrared laser exposure is inhibited and which has excellent developability of a non-image portion and printing durability of an image portion. The photosensitive planographic printing plate precursor, includes: an image recording layer on a hydrophilic support, the image recording layer including: (A) an infrared absorber; and (B) a copolymer having a repeating unit having a zwitterionic structure in a side chain thereof, and a repeating unit having a heteroalicyclic structure or a repeating unit having a hetero atom and an alicyclic structure in the main chain thereof.

The invention discloses an oxygen-rich gas combustion device. The oxygen-rich gas combustion device is provided with a combustion body, wherein the combustion body is provided with a burner block, and a gas spray gun and an oxygen spray gun are arranged in the burner block; the oxygen spray gun is provided with a primary oxygen spray gun and a secondary oxygen spray gun, and gas spray gun and the oxygen spray gun are arranged on a longitudinal cross section in the burner block at intervals; the gas spray gun is horizontally or slightly upward-obliquely arranged, and the front ends of a gun body of the primary oxygen spray gun and a gun body of the secondary oxygen spray gun are inclined downwards for 1 to 30 degrees; a gas inlet end of the gas spray gun is connected with a gas supply system, and the primary and secondary oxygen spray guns are respectively connected with a pure oxygen supply system; the burner block is also provided with a fire observation hole, a flame detector and an ignition gun. A combustion method of the combustion device comprises the following steps: 1, detecting and adjusting the oxygen supply system; 2, detecting a control function of the PLC; 3, interlock controlling the test; 4, setting a temperature, a gas normal operation value and an oxygen normal operation value; 5, starting and running. The oxygen-rich gas combustion device is applicable to kilns, smelting furnaces, anode furnaces, reverberatory furnaces, dore furnaces and the like in various industries and can improve the combustion efficiency, save the fuel, prolong the service life of the burner block and the kiln and reduce the exhausted smoke pollution.

A catalyst for cleaning the tail gas of car by decreasing the sulfide is composed of the carrier (67-95 Wt%) consisting of alumina and the oxide of the metal chosen from La, Ce, Pr, Nd, Zr, Mg, Cr, Mn, Fe, Co and Ni, and the active component consisting of the oxide of the metal chosen from Co, Mo, Ni, W, Zr, Ti, La, Ce, Pr and Nd and the oxide of noble metal chosen from Pt, Pd and Rh. Its preparing process is also disclosed.

The invention discloses a rain wiper control system, which comprises a rain wiper combination switch, a rain wiper motor, a rain wiper low-speed relay and a rain wiper high-speed relay, wherein the rain wiper combination switch is provided with a zero gear terminal, an intermittent gear terminal, a low-speed gear terminal and a high-speed gear terminal; and the rain wiper motor is provided with a high-speed terminal and a low-speed terminal. The rain wiper control system is characterized by also comprising an automobile body controller, wherein the automobile body controller is connected with the rain wiper combination switch; the rain wiper low-speed relay and the rain wiper high-speed relay are connected with the automobile body controller; the high-speed terminal and the low-speed terminal on the rain wiper motor are connected with a power supply after passing through normally open contacts of the rain wiper low-speed relay and the rain wiper high-speed relay. According to the rain wiper control system and a rain wiper control method, control signals are isolated from a driving circuit; a rain wiper rubs glass for consumption to stop an automobile, instantaneous large current cannot be generated, and a phenomenon that contacts of the combination switch are burnt is stopped; and the rain wiper control system meets requirements for practicability and a low fault rate, reflects a humanized design concept, and has a wide market prospect.

The invention relates to the technical field of a solar energy thermal power generation system and discloses a heat collector used for a dish type solar energy thermal power generation system. The heat collector comprises a heat collecting cavity and at least one layer of heat-absorbing coil, wherein the heat collecting cavity is provided with an opening part, the heat-absorbing coil forms a cavity structure, the cavity structure is provided with an opening hole, the cavity structure is arranged in the heat collecting cavity, the opening hole is aligned to the opening part, and a low temperature inlet of the heat-absorbing coil is arranged on the position with the largest energy distribution density of the incident light of the cavity structure. The heat collector can prevent the heat-absorbing coil from being eroded because of the partial overtemperature and from being burnt due to sudden fall of a convection heat transfer coefficient resulted from working medium phase change. The invention also discloses a solar energy thermal power generation system with the heat collector.