105results about How to "Improve long-term performance" patented technology

Chambers for a bushing bearing with damping means include outer sleeve and inner bearing part, accommodated in the outer sleeve with rigid bearing core and elastomeric bearing body surrounding the core. The expanding walls of the chambers are disposed transversely to the bearing axis (A). The inner bearing part is segmented with respect to the longitudinal axis (A) of the bearing and includes a center main segment with bearing core and bearing body and two end segments, each having an inner ring, an outer ring, and an interposed elastomeric element forming expanding wall of a chamber. The end segments are pressed with inner ring onto axial ends of the bearing core so that the material overlaps between the elastomeric elements of the end segments and the ribs of the bearing body. The channel is formed outside of the bearing body in a channel carrier element.

A fuse includes a fusible element and a body member encased within a heat-resistant housing. The fusible element is configured to open an electrical circuit coupled to a storage battery in response to an over-current in the electrical circuit. The housing is configured to contain an arc generated by the fusible element in response to the over-current and to shield the arc and the fusible element from ambient particles. Thus, the fuse is ignition protected. The body member includes an insulating material configured to interrupt the arc. The housing includes an opening configured to receive a terminal of the storage battery or a terminal of a mounting plate. An insulating material disposed about a first end of the mounting plate terminal is configured to electrically isolate the fuse and a power supply cable in the electrical circuit from the mounting plate terminal.

A fuse includes a fusible element and a body member encased within a heat-resistant housing. The fusible element is configured to open an electrical circuit coupled to a storage battery in response to an over-current in the electrical circuit. The housing is configured to contain an arc generated by the fusible element in response to the over-current and to shield the arc and the fusible element from ambient particles. Thus, the fuse is ignition protected. The body member includes an insulating material configured to interrupt the arc. The housing includes an opening configured to receive a terminal of the storage battery or a terminal of a mounting plate. An insulating material disposed about a first end of the mounting plate terminal is configured to electrically isolate the fuse and a power supply cable in the electrical circuit from the mounting plate terminal.

A multiphase clock circuit in which bit errors are propagated only for the duration of the clock cycle in which a bit error occurs. The circuit recovers automatically from bit errors and is capable of operating at high frequency with high clock precision. The multiphase clock circuit can generate a plurality of clock pulse streams, each pulse stream at the same clock frequency, with fixed phase relationships among the streams. The multiphase clock circuit includes a master clock signal of frequency fc which is applied to a divide by N frequency divider circuit for producing a base clock signal of fc / N. The base clock signal is sequentially applied to the data input of a series chain of N clocked data flip-flops (DFFs) each of which is simultaneously clocked by a clock signal of frequency fc to produce N clock signals of base frequency fc / N separated from each other by a constant time delay T=1 / fc.

The invention relates to a long-acting antibacterial polyurethane water-based wood paint composition. The composition consists of 30 to 90 parts of polyurethane emulsion, 0.5 to 5 parts of film-forming auxiliary agent, 10 to 40 parts of deionized water, 0.01 to 15 parts of nano silver antibacterial agent, 0.1 to 10 parts of bamboo charcoal powder and 0 to 32 parts of additive, wherein the dispersion medium of the polyurethane emulsion is water, and the solid content is 40 to 60 weight percent; and the additive is selected from one or more of dispersant, flatting agent, wetting agent, defoaming agent, delustering agent, co-solvent, thickener and filler. The composition can effectively prevent the loss of nano silver ions by adopting novel bamboo charcoal powder adsorption technology, has the effects of fixing bacteria, germs and mold on the surface of a paint film and preventing secondary pollution, and improves the long-term property, validity and durability of bacteria resistance, bacteria killing and sterilization of a polyurethane water-based wood paint film.

The invention relates to inorganic clay composite and the method for preparation and the utility, belonging to the catalyst art. The material comprises rare-earth element, titanium oxide and clay, the rare-earth element being one or two from Ce, La, Nd, Pr, Yt, Eu and Er, the clay being montmorillonite, the mass ratio of every component being: montmorillonite 54- 90%, titanium oxide 8- 45%, and rare-earth oxide 0.1- 4.0%; and the technique contains the following steps: the mass ratio of material being: titanate 0.6- 1.8%, absolute ethyl alcohol 45- 90%, rare-earth salt 0.013- 0.08% clay 0.8- 1.8%, deionized water 3- 30% and glycerin 4- 35%, using titanate, absolute ethyl alcohol and glycerin solution to prepare titanium oxide sol, using rare-earth salt and absolute ethyl alcohol to prepare rare-earth solution, adding said sol and solution separately into the suspension of clay- absolute alcohol, mixing, aging, filter-pressing, drying in 60- 80Deg. C, and at last roasting 4- 10 hours to prepare the product. The material is added into coating as an additive. And the material has a high catalysis property and a short preparation process.

The invention discloses a header body pressure-bearing type water storage type heat exchanger. A plurality of cold water round pipes are connected between two header bodies, round inner hole reinforcing plates are arranged in pipe orifices, the outer plate edges of the plates are connected with the cold water round pipe orifices through welding, and inner hole plates, cold water round pipes and round inner hole reinforcing plates are welded into a single unit in a close fit mode; in each cold water round pipe, a heating round pipe or a plurality of branched small heating round pipes of a combined heating round pipe are inserted in the holes of each round inner hole reinforcing plate, and the combined heating round pipe comprises short connecting pipes at the two ends and a plurality of branched small heating round pipes arranged at the middle in a connecting mode; the heating round pipes and / or combined heating round pipes are connected through heating connecting round pipes; external plates of the headers surround the heating round pipes or combined heating round pipes and are tightly welded with the internal hole plates of the headers. According to the header body pressure-bearing type water storage type heat exchanger, the round inner hole reinforcing plates enable the cross sectional area of the header hole plate to be increased, the compressive strength and tensile strength of the header hole plate are reinforced, and the fatigue damage to pipe socket fillet weld due to expansion thermal stress and temperature cycling is effectively prevented.

The invention relates to an application of pregabalin in preparing a drug for treating and preventing ischemic cerebrovascular diseases, and belongs to the medicine field. Pregabalin is a conventional drug. According to the invention, a great many of experiments demonstrate that pregabalin can reduce NO and NOS level of an ischemic patient when the pregabalin is applied in the treatment of ischemic cerebrovascular diseases particularly cerebral ischemia or cerebral infarction, can reduce MDA content in serum, and has an obvious protect effect for brain hippocampus neurons. The medical application of gabapentin can provide a novel drug selection of patients suffering from the ischemic cerebrovascular diseases, and has wide medical application prospects.

The invention provides a cylindrical horizontal physical simulation test device for coal mine sinking and driving engineering. Each confining pressure loading unit is of a half structure and is formed by connecting and assembling an upper half-round arc plate and a lower half-round arc plate which are completely symmetric through longitudinal flanges and high-strength bolts, the whole device comprises five confining pressure loading units of the half structures in total, and the adjacent half structures are connected through circumferential flanges and high-strength bolts. A loading end cover and a constraining end cover are designed at the two ends of the device and are connected with a cylinder formed by the half structures through high-strength bolts. Radial loading oil cylinders are arranged at equal intervals in the radial direction along the circumference of a confining pressure loading mechanism, wherein two circles of radial loading oil cylinders with the total number of twelve are evenly arranged on each half structure unit, in other words, sixty radial loading oil cylinders are arranged on the five half structures in total. Four axial oil cylinders are arranged on the loading end cover. The integrity and rigidity of the confining pressure structures are improved; besides, the confining pressure loading units of the half structures can carry out independent loading and individual control on test models, and the requirement for tests with different sizes of models with different functions is met.

The invention disclose an in-situ gas turbine rotor blade and casing clearance control method and system. The system comprises a rotor assembly having a plurality of circumferentially spaced-apart rotor blades (50), with each blade extending radially outwardly from an inner wheel disk (54); a stator assembly comprising one or more rows of spaced-apart vanes (52) extending between adjacent rows of the rotor blades (50); a casing extending circumferentially around the rotor and stator assemblies; and an abradable ceramic coating applied to selected areas of the interior cylindrical surface of the rotor casing (36) to thereby provide a minimum clearance between the casing and rotor blades during start up and to thereafter ensure an effective compressor seal for compressed gas flow.

Methods and systems are provided which maintain the positive and negative electrolyte pH and stability of a redox flow battery through the use of electrochemical rebalancing cells. The electrochemical cells may be activated by applying an electrical load to affect changes to the pH of the electrolytes. The use of the electrochemical cells improves long term performance stability redox flow batteries by decreasing and / or eliminating Fe(OH)3 precipitation formation.

A solid oxide cell obtainable by a process comprising the steps of: depositing a fuel electrode layer on a fuel electrode support layer; depositing an electrolyte layer comprising stabilized zirconia on the fuel electrode layer to provide an assembly of fuel electrode support, fuel electrode and electrolyte; optionally sintering the assembly of fuel electrode support, fuel electrode and electrolyte together to provide a pre-sintered half cell; depositing on the electrolyte layer of the pre-sintered half cell one or more oxygen electrode layers, at least one of the oxygen electrode layers comprising a composite of lanthanum-strontium-manganite and stabilized zirconia to provide a complete solid oxide cell; sintering the oxygen electrode layers together with the pre-sintered half cell to provide a sintered complete solid oxide cell; and impregnating the one or more oxygen electrode layers of the sintered complete solid oxide cell with manganese to obtain a manganese impregnated solid oxide cell.

The invention discloses a geogrid reinforcement lime soil retaining wall and a construction method of the geogrid reinforcement lime soil retaining wall and belongs to the field of fixed buildings. The retaining wall comprises a concrete building block type wall panel, filling materials and a one-way plastic stretching geogrid, wherein the weight percentage of lime in the filling materials is 2 percent to 10 percent, the rest materials are soil, and the concrete building block type wall panel is an air bubble light concrete building block type wall panel. The construction method comprises the following steps that: (1) the substrate treatment is carried out, and in addition, stripped base casting groove positions are dug in advance; (2) concrete stripped bases are cast in situ; and (3) retaining wall construction is carried out. The dead weight of the filling materials can be reduced, the self stability is improved, and the requirement on the foundation carrying capability is reduced; the integral performance of the filling materials is enhanced, and the intensity is improved; the geogrid intensity damage can be reduced; and the material resources are wide, the materials can be obtained from local sources, and the manufacture cost is low.

The invention relates to the field of building materials, in particular to a treatment method of machine-made sand tailings and concrete prepared from the machine-made sand tailings. The concrete disclosed by the invention is prepared from the following raw materials in parts by weight: 250-400 parts of cement, 15-90 parts of the machine-made sand tailings, 0-90 parts of fly ash, 700-1000 parts ofmachine-made sand, 900-1200 parts of gravel, 140-220 parts of water and 4-10 parts of a water reducing agent. The machine-made sand production waste is selected as a novel mineral admixture to be applied to the concrete, the construction cost can be reduced, meanwhile, various index requirements of the concrete can be met, and the concrete has excellent working performance and uniform appearancequality and is obviously superior to traditional concrete. The application of the machine-made sand tailings in the concrete realizes the purposes of reusing waste solids, turning waste into wealth and being green, energy-saving and environment-friendly.

The invention discloses a rebar corrosion inhibitor containing Gemini amino ester, made by mixing, by weight, 8-60% of Gemini amino ester, 2-10% of organic amine, 2-15% of an acid, 15-88% of water. Byintroducing novel Gemini amino ester structure, the rebar corrosion inhibitor can adsorb to the surface of rebars more evenly and compactly; the rebar corrosion inhibitor has high structural adjustability, has significantly reduced volatilizing and dissipating chances, can remain in concrete for long time and can firmly adsorb to the surface of rebars; the rebar corrosion inhibitor forms a three-dimensional protective film of passivating film, depositing film and adsorbing film with optimized structure on the surface of rebars, screening action is provided for corrosive media, and chances forchloride ions and the like to contact rebar bases are decreased; the rebar corrosion inhibitor has certain hydrophobic property, electrochemical corrosive reaction on the surface of rebars is significantly reduced, and long-term action of the rebar corrosion inhibitor is greatly improved.