31results about How to "Long-term degradation" patented technology

A reformer such as a CPO (18) receives a mix of fuel, moisture and oxygen from a mixing region (21) having an igniter (26, 66), which may include an inert ceramic foam (19), the fuel being provided by an atomizing nozzle (22), thereby avoiding the need for a vaporizer before use. The oxygen and moisture may comprise engine exhaust (11, 12). Fuel from a vehicle fuel tank (9), may be gasoline, diesel fuel, kerosene, jet fuel, or JP-8. The atomizing nozzle may be a gas-assist nozzle (22a), receiving the assisting gas from (a) engine exhaust (10), (b) a turbocharger (33), (c) an air pump (50) or (d) a steam generator (57). The oxygen and moisture may comprise moisturized air, which may be achieved by an ejector (41) which ingests water from a tank (43) in response to the flow of air from a pump (50) through a conduit (47). The air may be regeneratively heated (48) with the CPO exhaust. The igniter may be a glow plug (26) or a heater wire (66) coated with catalyst.

A method and apparatus is described for producing high brightness, e.g. multicolor light, whereby a region of a wavelength conversion element and a light source producing excitation light are moved relative to each other so that said region is exposed to the excitation light at different times and in a progressive movement that scans across a part of the entire surface of the wavelength conversion element. The wavelength conversion element can be cooled by air or with a liquid.

A biomedical electrode for transmitting and / or receiving electrical signals to / from a patient is disclosed. The electrode includes a metallized fabric, wherein metallization of the fabric is connected at least on a top side and a bottom side of the fabric so as to uniformly transmit or receive the electrical signals. A conductive gel adhesive in contact with the metallized fabric. The electrode can be fabricated using a continuous web process, thereby reducing the cost of manufacturing the electrode.

A biomedical electrode for transmitting and / or receiving electrical signals to / from a patient is disclosed. The electrode includes a metallized fabric, wherein metallization of the fabric is connected at least on a top side and a bottom side of the fabric so as to uniformly transmit or receive the electrical signals. A conductive gel adhesive in contact with the metallized fabric. The electrode can be fabricated using a continuous web process, thereby reducing the cost of manufacturing the electrode.

The invention relates to a method and a system for detecting an impact on an impeller wheel (7) of an aircraft engine, characterised in that it comprises:acquisition means (13) for acquiring a revolutions per minute of said engine and a series of deflection signals representative of the deflections on the blades of said impeller wheel at said revolutions per minute, andcorrelation means (15) for constructing signals for detecting impact on said impeller wheel by correlating each of the deflection signals with a predetermined signature of a shock on a blade at said revolutions per minute.

There is disclosed herein an apparatus for electromagnetic forming, joining or welding a workpiece, the apparatus including at least two multi-turn solenoid coils wound in a manner that cooperatively encircles the workpiece to be formed. The apparatus also includes an electrically insulative shell encasing each coil and an electromagnetic current source electrically connected to the coils that generates an electromagnetic field. A hinge mechanism connects the insulative shells and a locking mechanism secures the shells and coils around the workpiece during electromagnetic field generation. A conductive rod joins the solenoid coils and permits series current flow between the coils. The apparatus further includes a shaper that encircles the workpiece and which restricts movement of the workpiece during electromagnetic forming. The shaper concentrates the generated electromagnetic field on the workpiece.

The present invention provides an optical transmitter that compensates the thermal tracking error. The transmitter comprises a temperature feedback loop including temperature controller that controls the temperature of the laser diode to coincide with the reference temperature by the thermo-electric device. The reference temperature reflects the thermal tracking error that depends on the ambient temperature and that of the target temperature of the laser diode. The transmitter installs a lookup table for providing the reference temperature. The lookup table is rewritten taking the long-term deterioration of the laser diode into account, which is reflected in the increase of the bias current and the forward voltage of the laser diode.

When a hole in a separator is clogged, the cycle characteristics of a battery might be lowered and the internal resistance of a battery might be increased to reduce the output. Thus, a means for suppression of or recovery from degradation due to a clogged separator in a battery such as a lithium-ion secondary battery is provided. When reverse pulse current is supplied multiple times during charge, a separator is prevented from being clogged and a voltage increase (increase in internal resistance) during charge is suppressed, so that charge can be normally performed repeatedly.

A membrane electrode assembly (MEA) for a fuel cell which exhibits enhanced reversal tolerance. In particular, a layer of iridium or an iridium compound, preferably metallic iridium or iridium oxide supported on TiO2, is provided on the anode to electrolyze available water and pass the majority of the current during a reversal of the fuel cell, thereby preventing damage to the MEA. The iridium or iridium compound is applied to an anode structure according to a predetermined pattern, with only part of the anode active area containing Ir. The parts of the MEA that do not contain Ir are not expected to suffer degradation from Ir cross-over, so that overall degradation of the cell will be diminished. Having less precious metals will also translate into less cost.

The invention belongs to the technical field of catalytic materials and coatings, and discloses an antibacterial formaldehyde-removing catalytic material, and a preparation method and an application thereof. The preparation method comprises the following steps: adding a permanganate, an iron salt, an oxalate and silver nitrate into water, performing stirring for uniform mixing, carrying out a hydrothermal reaction at 70-120 DEG C, naturally cooling the obtained solution to room temperature after the reaction is finished, and separating, washing and drying the obtained solid product to obtain the powdery antibacterial formaldehyde-removing catalytic material. The antibacterial formaldehyde-removing catalytic material, titanium dioxide, a styrene-acrylic emulsion and water are stirred and mixed, assistants are added, and stirring is performed for uniform mixing to obtain an antibacterial formaldehyde-removing coating. The obtained catalytic material can be used for carrying out efficientcatalytic oxidation on formaldehyde under the condition of no light at room temperature, so that formaldehyde is degraded into harmless carbon dioxide and water. The obtained antibacterial formaldehyde-removing coating can be well smeared on artificial boards, plastic wallpaper and walls, and is safe, nontoxic and odorless. The catalytic material can quickly and safely degrade formaldehyde for along time.

Ruthenium or a Ruthenium compound is applied to an anode structure according to a predetermined pattern, with only part of the anode active area containing Ru. The parts of the MEA that do not contain Ru are not expected to suffer degradation from Ru cross-over, so that overall degradation of the cell will be diminished. Having less precious metals will also translate into less cost.

The invention discloses a preparation method of a graphite type C3N4 material, the graphite type C3N4 material and an application of the graphite type C3N4 material. The preparation method comprises steps of heating calcination and constant-temperature calcination. The preparation method is used for rapidly preparing the graphite type C3N4 material, a small variety of raw materials are required, the cost is low, the process is simple, the production cost is effectively reduced, and accordingly, the preparation method is suitable for industrial large-scale production and has great actual application value. The specific surface area of the graphite type C3N4 material prepared with the method is 30.1 m<2> / g-68.7 m<2> / g, and the graphite type C3N4 material has the advantages of large specific surface area, high photocatalytic activity and the like, can be used for photocatalytic degradation of landfill leachate and can efficiently degrade organic pollutants in the landfill leachate.

A method and a system for detecting an impact on an impeller wheel of an aircraft engine. A device acquires a revolutions per minute of the engine and a series of deflection signals representative of the deflections on the blades of the impeller wheel at the revolutions per minute. A device constructs signals for detecting impact on the impeller wheel by correlating each of the deflection signals with a predetermined signature of a shock on a blade at the revolutions per minute.

The invention provides soil beneficial to adsorption and decomposition of hazardous substances and a preparation method thereof and application of the soil. The preparation method comprises the following steps: compound bacteria are mixed in proportion and are activated, an obtained activated bacteria solution is added into wormcast soil in proportion, the prepared soil is put in a culture area, a0.05% formaldehyde solution is delivered into the culture area after the culture area is closed, and closed culture is performed for 72-120 hours to obtain a soil finished product. The soil beneficial to adsorption and decomposition of the hazardous substances is prepared by the preparation method, and in application of the soil, the soil is used for cultivating special plants for air purification and is made into a hazardous substance adsorption purification bag; the closed culture is performed on the prepared soil, and the formaldehyde solution is delivered into the culture area, and the like to stimulate degrading bacteria in florae to continuously degrade and adapt to be enhanced in activity, and the structure of the florae in the soil is regulated, and after culture ends, a large number of active degradation florae are present in the soil, thus increasing soil fertility and various trace elements. The soil can be used as the core of air purification formula soil different in function.

When a hole in a separator is clogged, the cycle characteristics of a battery might be lowered and the internal resistance of a battery might be increased to reduce the output. Thus, a means for suppression of or recovery from degradation due to a clogged separator in a battery such as a lithium-ion secondary battery is provided. When reverse pulse current is supplied multiple times during charge, a separator is prevented from being clogged and a voltage increase (increase in internal resistance) during charge is suppressed, so that charge can be normally performed repeatedly.

The invention discloses an NAS immobilized carrier microorganism generator and a technology for treating sewage by using the NAS immobilized carrier microorganism generator. The NAS immobilized carrier microorganism generator comprises a barrel-shaped shell, a cover body arranged at the upper end of the shell, and a first aeration pipe which penetrates through the cover body and is fixedly connected to the inner bottom of the shell, and a through hole penetrating through the shell is arranged; a microorganism immobilized carrier is filled between the inner wall of the shell and the outer wallof the first aeration pipe, wherein the microorganism immobilized carrier is a 1-5 cm porous ceramic material prepared by mixing and firing clay and diatomaceous earth in the mass ratio of 50: 1; microorganisms extracted from nature and transfer enzymes are combined in a carrier in a dormant manner by adsorption, covalent bonding and embedding. The technology can be used for replacing a link of culturing the microorganisms by utilizing activated sludge when the sewage is treated by an activated sludge method, high-concentration microbial flora can be continuously supplied to the sewage for a long time without addition, no activated sludge is not generated in the sewage treatment process, and the effect of zero emission of the sludge is achieved; and the technology can also be applied to microorganism treatment of polluted water bodies of lakes and rivers and other polluted water bodies.

There is provided a process for sealing a coolant plate to an adjacent bi-polar plate or coolant plate in an electrochemical cell. The first coolant plate comprises at least one mating region for mating with a complementary region on the adjacent plate, the adjacent plate is a second coolant plate or a bipolar plate of the electrochemical cell, and the first coolant plate and the adjacent plate each comprise a polymer and conductive filler. The process comprises the step of welding the mating region to the complementary region to create a seal formed by the polymer at the mating region and the complementary region. Welding may be done using resistance welding or vibration welding processes.

The invention provides a photocatalytic ceramic and a preparation method thereof and a method for degrading organic dye RhB. The method for preparing photocatalytic ceramics from the titanium-extracting slag includes the steps of: grinding the titanium-extracting slag to a green body powder with a particle size of 200-325 meshes; mixing the green body powder with a concentration of 5-8% polyvinyl alcohol solution for 10 ~20: 1kg / L mixed and granulated to obtain green pellets with a particle size of 20 to 40 meshes; 2 The green body is obtained by pressing and forming under high pressure; first, the green body is preheated to remove the moisture therein, and then heated to 1150-1200 °C at a heating rate of 5-15 °C / min for 15-60 min, cooled, and polished to obtain Photocatalytic ceramics. The beneficial effects of the present invention may include: providing a new photocatalytic ceramic and a preparation method thereof, the cost of raw materials is reduced, and the organic dyes can be degraded for a long time in an acidic environment.

Degradation of an electron emission element by irradiation of the positive ion generated inside a panel is suppressed. A deflection electrode is periodically disposed, and the electron emission region of an electron emission element is disposed so as not to include a center line between adjacent deflection electrodes, so that an electron beam trajectory is deflected and bombardment or irradiation of the generated positive ion to the electron emission region is prevented.

The invention provides a photocatalytic ceramic, a preparation method thereof and a method for degrading organic dye RhB. The method for preparing the photocatalytic ceramic from titanium extraction slag comprises the following steps of: grinding the titanium extraction slag into green body powder with a particle size of 200-325 meshes; mixing the green body powder with a polyvinyl alcohol solution with a concentration of 5-8% in a mass volume ratio of 10-20:1kg / L for granulating to obtain green body granules with a particle size of 20-40 meshes; pressing and molding the green body granules under a pressure of 250-380kgf / cm<2> to obtain a green body; and preheating the green body to remove water in the green body, heating the green body to 1150-1200DEG C at a heating rate of 5-15DEG C / min,keeping the temperature for 15-60min, cooling, and conducting cooling and polishing to obtain the photocatalytic ceramic. The invention has the beneficial effects that: the new photocatalytic ceramicand the preparation method thereof are provided, the raw material cost is reduced, and the organic dye can be degraded for a long time in an acidic environment.

Ruthenium or a Ruthenium compound is applied to an anode structure according to a predetermined pattern, with only part of the anode active area containing Ru. The parts of the MEA that do not contain Ru are not expected to suffer degradation from Ru cross-over, so that overall degradation of the cell will be diminished. Having less precious metals will also translate into less cost.

The invention discloses a petroleum soil pollution remediation process for promoting crude oil degradation, and relates to the technical field of soil remediation. According to the petroleum type soil pollution remediation process, sampling detection is conducted after region division, soil of different regions and different depths can be drilled at the same time for petroleum hydrocarbon content detection, application of a remediation agent and degradation bacterium liquid is facilitated adaptively, and the situation that the dosage of the remediation agent and the dosage of the degradation bacterium liquid are unreasonable is avoided; volatile gas and oil-water mixtures in the soil can be adsorbed, filtered and purified through negative pressure extraction and purification; in the degrading bacterium liquid degrading and soil repairing agent repairing process, the adding amount of degrading bacterium liquid and a soil repairing agent is adjusted according to the petroleum hydrocarbon content of soil at different depths in different areas. According to the petroleum soil pollution remediation process, targeted remediation treatment of soil in different areas and different depths can be achieved, the effect of effectively degrading petroleum hydrocarbon in crude oil for a long time is achieved, and the remediation cost is saved.

The invention belongs to the technical field of catalytic materials and coatings, and discloses an antibacterial and formaldehyde-removing catalytic material as well as a preparation method and application thereof. Add permanganate, iron salt, oxalate and silver nitrate into water, stir and mix evenly, and react hydrothermally at a temperature of 70-120°C. After the reaction is completed, naturally cool to room temperature, and the solid product is separated, washed, and dried. The powdered antibacterial and formaldehyde-removing catalytic material is obtained. The antibacterial and formaldehyde-removing catalytic material is stirred and mixed with titanium dioxide, styrene-acrylic emulsion and water, and then an auxiliary agent is added to stir and mix evenly to obtain an antibacterial and formaldehyde-removing coating. The catalytic material obtained in the invention can efficiently catalyze and oxidize the formaldehyde under the condition of room temperature and no light, and degrade the formaldehyde into harmless carbon dioxide and water. The obtained antibacterial and formaldehyde-removing paint can be well applied on artificial boards, plastic wallpapers and walls, and is safe, non-toxic and free from any peculiar smell. It can degrade formaldehyde more quickly, safely and for a long time.

Degradation of an electron emission element by irradiation of the positive ion generated inside a panel is suppressed. A deflection electrode is periodically disposed, and the electron emission region of an electron emission element is disposed so as not to include a center line between adjacent deflection electrodes, so that an electron beam trajectory is deflected and bombardment or irradiation of the generated positive ion to the electron emission region is prevented.