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 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, and

correlation 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.

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.

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.