107results 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.

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.

An automated data storage library includes a plurality of storage slots, a drive having a stacked connector system, and a library control manager configured to monitor usage data for the stacked connector system representative of the number of times the stacked connector system is mounted by a media connector from any of a plurality of media elements, and wherein the library manager is further configured to coordinate refreshment of the stacked connector system when the usage data reaches a predetermined usage level threshold. The stacked connector system may be refreshed by replacement or addition of a separate connector. Various methods of improving the long term performance of a drive in a media library by replacing or adding a connector to a stacked connector system of a drive are also provided.

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 discloses a new road regenerating cement concrete and preparing method, which comprises the following parts: 15%-37% regenerating rough aggregate, 15%- 37% natural rough aggregate, 16%-18% cement, 22%-24% sand, 8%-10% water (mixing water and additional water), 0.6%-1.2% steel fiber corresponding to the sum of component bulk and 0.1%-0.5% high-effect water reducer corresponding to cement quantity. The invention overcomes low bending-proof strength, which improves cracking-proof flexibility and impaction-proof ability greatly.

The non-weaved cloth permeable keep-wet lining plate comprises two or three layers of different hole diameter prepared by manufacture and post treatment techniques; wherein, the double-layer structure comprises surface layer (1) and porous layer (2) that link to cement and mould plate and prepared by fiber of fineness of 07~1.5, 1~3.3dtex with hole diameters of 1~10, 4~15mu m separately; the three-layer structure comprises up and down surface (1) touched with cement, porous layer (2) and stuck layer (3) linked to mould plate and prepared by fiber of fineness 2.2~4.4dtex with hole diameter of 10~30mu m. This product has well performance and fits to industrial yield.

The invention relates to a secondary synthesis method of calcium sulfoaluminate minerals in a metasilicate cement clinker, comprising the following steps of: mixing a plaster in a metasilicate cement raw material and calcining; and carrying out thermal treatment on the metasilicate cement clinker containing the calcium sulfoaluminate minerals to enable the decomposed calcium sulfoaluminate minerals in the clinker is re-formed at a high-temperature state. Therefore, the invention improves the content of the calcium sulfoaluminate minerals in the clinker, sufficiently develops the superiority of the calcium sulfoaluminate minerals in the cement clinker, improves the early and long-term perofmrance of the cement clinker and increases the mixture quantity of a mixed material in the cement.

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 relates to a preparation method of enzyme function sensitive film comprising a methylene blue intercalation manganese dioxide supermolecular structure material and the application thereof in electrochemistry biological sensor; the methylene blue is inserted into manganese dioxide layers by the method of removal and reassembly; an ethanol dispersion liquid is dropped and smeared on the surface of a solid electrode; a homogeneous mixed liquid of a biological compatibility polymer and a biological active substance is dropped and smeared on the surface of the solid electrode after the ethanol dispersion liquid dries naturally; the solid electrode is immersed into a high polymer film material solution after being dry; a solvent on the surface of the solid electrode is volatilized in a refrigerator, and then a layer of a complex enzyme function film comprising the methylene blue intercalation manganese dioxide can be formed on the surface of the solid electrode. The enzyme function sensitive film in the invention is used in the electrochemistry biological sensor and greatly improves the performances of the sensor such as detecting potential, anti-jamming capacity and stability.

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 present invention provides electroactive polymer (“EAP”) transducers having improved properties. This improvement is achieved without decreasing film thickness, or by using high dielectric constant and high field, so that this approach does not adversely affect the reliability and physical properties of the resultant dielectric films. Mobile electrically active additives are added to the electrode formulation which significantly improve the performance of electroactive polymer transducers. Such additives do not need to be ionic. These electrically active additives can enable higher performance devices, smaller devices using less active area, lower voltage / power operation, and combinations of these enhancements.

A power wafer includes an enclosure that houses an energy plate such as a battery, capacitor, super-capacitor or other type of electrical energy storage device. A power wafer uses conductive infusions to make internal electrical connections. In some embodiments, the power wafer has an enclosure formed of a top structure and a bottom structure, which are configured to snap together. The bottom structure has an energy plate void and conductive infusion voids. In some embodiments, the infusions have carbon nanotubes that are magnetically aligned to increase the electrical and thermal conductivity of the infusions. In certain embodiments, the enclosure is configured to hold multiple energy plates in parallel and / or in series to increase the amperage and / or voltage of the power wafer. When the plates are stacked in parallel, an insulating barrier is placed between the plates.

The invention discloses a data analysis method and device based on AB test results, equipment and a medium, and relates to the technical field of computers, in particular to the field of machine learning. According to the specific implementation scheme, the method comprises the steps: in a first time period, providing a test application and a current application for an experimental group and a control group respectively for AB testing, wherein at least one difference application function exists between the test application and the current application; according to the retention rates of the experimental group and the control group in the first time period, predicting the retention rate index values of the experimental group and the control group in the second time period, wherein the first time period is smaller than the second time period; calculating a retention rate index absolute difference value between the experimental group and the control group according to the retention rate index values of the experimental group and the control group in the second time period; according to the absolute difference value of the retention rate index, determining the effect of the difference application function in the test application, so the effect of the test application with the updated application function can be comprehensively measured for a long time.

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 provides a mortise-tenon connection structure of fabricated beam-column joints. The connection mode comprehensively considers the connection between upper columns and lower columns and the connection between beams and columns. Reserved chase mortises are formed in the upper columns, the lower columns, cross beams and longitudinal beams. During construction, secondary joint pouring for fabricated wet process connection is avoided, and the use of bolts and welding joints for dry-type joint connection is avoided. During construction, a traditional method is changed, the beams and columns are spliced through the reserved tenons and chase mortises of the beams and the columns, and the structure is assembled and formed at a time by pouring fine stone concrete into small holes and other processes. The mechanical properties of the joints is ensured, at the same time, the environmental pollution caused by the secondary pouring is avoided, the construction efficiency is improved, and the mortise-tenon connection structure of the fabricated beam-column joints is quite suitable for the development prospects of the fabricated type.

The invention provides a long-acting, anti-bacterial and mould-proof ABS (acrylonitrile butadiene styrene) functional material and a preparation method thereof. The long-acting, anti-bacterial and mould-proof ABS functional material is prepared through mixing and extrusion from components in parts by mass as follows: ABS, an anti-bacterial and mould-proof nano-agent, an antioxidant, a lubricant and white oil. The prepared anti-bacterial and mould-proof ABS functional material has high efficiency, has the anti-bacterial rate larger than 99% and the mould-proof level reaching level 0 and especially is excellent in long-acting performance, and acceleration test simulation proves that the high anti-bacterial rate and mould-proof performance can be kept for 10 years or longer. Further, the material is easy to process and form, environment-friendly and healthy and meets the requirements of regulations such as ROHS, REACH and the like.

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.

The invention belongs to the field of high-cycle fatigue test technologies, and relates to a high-temperature high-cycle fatigue test thermal isolation device. The device is characterized by comprising a shell 9 and a cover plate 8 which are welded together. The invention provides a high-temperature high-cycle fatigue test thermal isolation device, which avoids reduction of the system rigidity and the test piece excitation efficiency, improves the long-term effect of thermal barrier, meets the requirement of a vibration table for temperature isolation, and prevents damage to the vibration table.

A vibration sensor is mounted on the central shaft, such that it senses vibrations induced into the feed roll assembly in a direction transverse to the rotational axis of the feed roll.

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.

Allocating a resource of a storage device to a storage optimization operation. An available resource of the storage device is monitored. Determining an allocation proportion of the resource allocated to the storage optimization operation, based on at least one of historical running information and a predicted value of a performance improvement caused by the storage optimization operation. Allocating the resource of the storage device to the storage optimization operation based on the available resource and the allocation proportion.

The invention discloses composite probiotics capable of increasing the survival rate of piglets, and relates to the technical field of microorganisms. The composite probiotics consist of probiotics and avian immunoglobulin IgY. The composite probiotics can reduce the incidence rate of yellow dysentery, white dysentery, other intestinal bacterial loose bowels, and diarrhoea of piglets, increase thesurvival rate of the piglets, promote development of immune organs of the piglets, enhance the immunity and the disease resistance of the piglets, reduce the attack rate, complement intestinal probiotics, adjust intestinal flora environment of the piglets, strengthen the resistance of the piglets to environment stress, improve the chronicity and the stability of the health of piglet groups, protect the normal development of intestinal mucosae and intestinal villi, and improve the nutrient absorption capacity. When the avian immunoglobulin IgY is used, blood sampling is not needed, only eggs produced by immune hens need to be collected, so that antibodies can be obtained; and a small quantity of antigen immunity birds are used, a large quantity of specific IgY homogeneous in quality can beobtained, and the avian IgY and mammal immunoglobulin cannot generate a cross serologic reaction.

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.