307results about How to "Reduce compactness" patented technology

Embodiments of the disclosure include a noninvasive physiological patient sensor and a patient monitor capable of wireless communication with one another. An optical communication path can be used to provide the communication path between the noninvasive physiological patient sensor and the patient monitor. The path can be maintained by one or more light sources and detectors traditionally associated with noninvasive optical sensors or by one or more additional dedicated light sources and detectors.

The disclosure relates to composite nonwoven fibrous webs including a population of sub-micrometer fibers having a median diameter less than one micrometer ([mu]m), and a population of microfibers having a median diameter of at least 1 [mu]m. At least, one of the fiber populations is oriented, and each composite nonwoven fibrous web has a thickness and exhibits a Solidity of less than 10%. The disclosure also relates to methods of making composite nonwoven fibrous webs, and articles including composite nonwoven fibrous webs made according to the methods. In exemplary applications, the articles may be used as gas filtration articles, liquid filtration articles, sound absorption articles, surface cleaning articles, cellular growth support articles, drug delivery articles, personal hygiene articles, or wound dressing articles.

An intake assembly in an engine is provided. The intake assembly includes a compressor and a plenum in fluidic communication with the compressor, the plenum having an integrated charge air cooler including a coolant inlet and a coolant outlet in fluidic communication with a coolant passage and cooling plates extending into a plenum enclosure and coupled to the coolant passage. The intake assembly further includes a throttle body coupled to the plenum.

The invention relates to a preparation method for non-woven fabric and a non-woven fabric production device used for performing the method. The method comprises enabling melt-blown fiber formed through a melt-blown device to have high voltage static electricity, mixing the melt-blown fiber with the high voltage static electricity with artificial short fiber, obtaining composite fiber, collecting the composite fiber and forming the non-woven fabric. The non-woven fabric prepared through the non-woven fabric production device and according to the preparation method for the non-woven fabric is low in density so that the non-woven fabric has improved sound absorption and insulation effects.

The invention provides a filling-reclaiming method for building land in coal mining subsidence areas, which belongs to the technical field of mining and is used to solve the problem of developing and utilizing coal gangue. The invention adopts a technical scheme that the method is implemented according to the following steps: a, draining accumulated water in reclamation areas and clearing silt; b, striping and stockpiling surface soil; c, determining the thickness and density of coal gangue for hierarchical backfilling through a vibration pressure test; and d, performing hierarchical backfilling compaction on the coal gangue and soil. The method has the following main advantages that: 1, the ways of utilizing the coal gangue are expanded, and environmental pollution caused by stockpiling the coal gangue on ground is reduced; 2, the situation that building land is increasingly short is alleviated by reclaiming subsidence land to be the building land; and 3, the treatment for coal gangue for large-area hierarchical backfilling by a hierarchical vibration-compaction method is economical, reasonable and ideal in compaction effect, can improve the compactness and bearing capacity of coal gangue layers, and can prevent the spontaneous combustion or efflorescence of coal gangue foundations and the separation of harmful substances from polluting local environment because hierarchical compaction greatly reduces porosity and isolates air.

The invention relates to a method for comprehensively utilizing low-concentration heavy metal-containing soil improvement and repairing damaged soil by plants after detoxification of a contaminated field. The method comprises the following steps of: conveying of low-concentration soil after heavy metal-containing soil is detoxified, sludge and pulverized fuel ash; principal fermentation, mixing of various ingredients; primary fermentation; static state of post-fermentation (secondary fermentation); uniform turning (aerobic and anaerobic) fermentation; conveying of improved soil; and vegetation repairing (woody and herbaceous plants) planting for the contaminated soil. In the method, a modifier is added for modification, so that the content of heavy metals in the soil is reduced, the structure and pores of the damaged soil are repaired, and the permeation and air permeability of the soil are improved; and organic matters and other noxious matters in sludge and soil are decomposed and degraded in a certain condition by utilizing microbes in the sludge to reduce volume weight and compactness, so that the improved soil forms a substance similar to humus soil to serve as a biochemical process of the improved soil and fertilizer. According to the method, the planted vegetation growing environment of the land which uses the improved soil as a soil base material is ensured, so that the waste is used to treat waste, and the comprehensive utilization is improved.

A method for manufacturing an artificial leather comprises the following steps. First, ultramicrofiber-forming fibers having an islands-in-sea type cross-sectional configuration are formed by blend spinning or conjugate spinning. Secondly, a porous reinforcement sheet of low compactness is formed from polyester, polyurethane or polyolefin by spunbonding, meltblowing or calendering. Next, the ultramicrofibers are entangled with the reinforcement sheet by needle punching or spunlace to form the complex reinforced ultramicrofiber nonwoven fabric. The nonwoven is impregnated or coated with an elastomer resin composition, and then subjected to a coagulating process, a washing process, a drying process and a removing process to produce a semi-product leather. Finally, the semi-product leather is then processed to produce the artificial leather.

An engine is provided that includes an exhaust gas recirculation (EGR) conduit in fluidic communication with a first exhaust valve in a cylinder and an intake system, an exhaust conduit in fluidic communication with a second exhaust valve in the cylinder and an emission control device. During operation with the first valve active and the second valve deactivated, a fixed EGR level can be provided. However, during operation with the first valve deactivated and the second valve active, increased engine output can be achieved with reduced EGR without requiring additional exhaust throttling or switching valves.

The invention provides a heat pump-type hot-water supply device which includes a heat source-side heat pump unit having a radiation heat exchanger for radiating heat from refrigerant by condensing therefrigerant. The hot-water supply device further includes a hot-water supply unit having a water tank where water is contained, water supply piping for supplying external water into the water tank, water circulation piping communicating with both a bottom section and an upper section of the water tank and circulating water in the bottom section to the upper section of the water tank in a bypassing manner, an absorption heat exchanger located in the middle of the water circulation piping and joined to the radiation heat exchanger of the heat source-side heat pump unit such that the absorptionheat exchanger can absorb heat, and a hot-water supply unit for supplying hot water in the upper section of the water tank to the outside. The water supply piping is branched off into a first water supply route and a second water supply route. The first water supply route supplies, without treatment, the water supplied from the outside into the water tank, and the second water supply route supplies the water from the outside into the water tank after improving the quality of the water by a water quality adjustment unit so that the water does not produce scale. Either or both of the water supply routes are used appropriately depending on the quality of water supplied. As a result, scale deposition is suppressed.

The invention discloses a solution cooling absorption type ammonia water motive power circulation device, which consists of an evaporator 1, a turbine machine set 3, a regenerator 4, a low-pressure absorbing device 5, a low-pressure ammonia pump 6, a gas-liquid separator 7, a pre-heater 8, a high-pressure absorbing device 9, a high-pressure ammonia pump 10, a throttle valve 11 and a connecting pipeline, wherein the low-pressure absorbing device and the high-pressure absorbing device are respectively divided into a solution cooling absorbing section and a cooling water absorbing section, and the solution cooling absorbing section is arranged above the cooling water absorbing section. The solution cooling absorption type ammonia water motive power circulation device has the advantages that the absorbing device outlet solution is used for cooling the front section of the absorbing process, the cooling water quantity can be reduced, the heat discharge and the heat transfer loss on the environment can be reduced, the heat transfer area is favorably reduced, and the circulation heat efficiency is favorably improved. The solution cooling absorption type ammonia water motive power circulation device is provided with the three-flow pre-heater for preheating work solution before entering the evaporator, the dilute solution and rich ammonia gas entering the absorber can be cooled, the absorption driving force can be enhanced, and in addition, the smoke gas low-temperature corrosion resistance of the device is favorably improved.

The invention discloses a prefabricated reinforced concrete hollow pier socket and spigot joint connection structure and a manufacturing method. A component I of the structure is a prefabricated bearing platform; a corresponding pier column groove hole is reserved when the bearing platform is poured and is convenient for connection with a pier column, and meanwhile steel bar anchoring in the bearing platform and penetrating a hole is provided at the socket and spigot position, a component II is a prefabricated hollow pier column; the bottoms of the pier columns are welded through steel plates,holes are reserved in the corresponding positions of the steel plates, bearing platform anchoring steel bars can stretch into the holes conveniently, the overall connecting performance of the pier columns and the bearing platform can be obviously improved, meanwhile, inclined steel wedges are arranged at the corresponding positions of the pier columns and the bearing platform, after the pier columns are inserted, a self-locking function is achieved through rotation, temporary supports are not needed for reinforcement, and construction is facilitated. Meanwhile, interface ripples are arrangedon the surfaces of the pier column and the bearing platform, the connecting and shearing resistance performance is improved, a gap between the pier column and the bearing platform is subjected to crack pouring through UHPC, the socket and spigot joint quality is met to a great extent, and meanwhile the performance of high early strength and rapid construction is achieved. The operation is simple and convenient, the construction is easy and the quality is controllable.

Provided is a method for preparing metal powder for 3D printing through a rotating electrode with the assist of plasmas. In a sealed container protected by an inert atmosphere, a low-voltage strong current is used for generating a plasma arc in a narrow and small space between a plasma assist electrode and the rotating cylindrical consumable electrode made from high-temperature metal. By means of the high temperature generated by the plasma arc, the section, close to the plasma arc, of the high-temperature metal electrode is made to enter a molten state, and small liquid drops of the high-temperature metal are formed. Centrifugal force generated by rotating the rotationally fed electrode made from the high-temperature metal at a high speed is used for throwing out the small liquid drops of the high-temperature metal. The small liquid drops of the high-temperature metal are air-cooled and solidified into balls in the sealed environment protected by the inert atmosphere, and the high-temperature small metal balls for 3D printing are collected from the bottom of the container.

Steam cleaning apparatus, comprising an upper handle, an intermediate pole and a bottom head for production and supplying of steam, provided with an instantaneous steam generator, a water reservoir housed on the top of said pole in the region of the handle, a duct for transferring the water from said reservoir to said head and a water loading device housed on an associated loading mouth formed above said reservoir, further comprising a steam regulating device provided with a fixed bushing having a hollow bottom end sealingly engaged on the top end of a sectional pole and a valve body fixed inside said bushing, the top part of said valve body being sealingly engaged on a discharge mouth of said reservoir and provided with a through-hole able to be opened and closed in an adjustable manner by a valve which can be actuated on the outside of the device by means of suitable means movable with respect to said bushing.

A telescoping retractable assistive device for grabbing or picking-up golf balls is disclosed. The device comprises an elongate shaft having multiple sections. The length of the elongate shaft may be adjusted for compact storage or to extend the reach of the user. The elongated shaft is attached to a cup with a diameter sized to allow engagement with the top outside surface of a golf ball. The cup may be made of a resilient material which expands or contracts slightly upon engagement with the golf ball. In the preferred embodiment, the cup is translucent or clear to further improve direction and engagement with the ball. With this device, a golf ball lying on the golf course can be picked-up by the user standing on the golf course or sitting in a golf cart.

The invention discloses a large-thickness high-tenacity vessel steel plate, comprising the following chemical components by mass percent: 0.08 to 0.12 percent of C, 0.15 to 0.40 percent of Si, 0.40 to 0.70 percent of Mn, smaller than or equal to 0.005 percent of P, smaller than or equal to 0.003 percent of S, smaller than or equal to 0.40 percent of Ni, smaller than or equal to 0.20 percent of Cu, 0.80 to 1.20 percent of Cr, 0.45 to 0.60 percent of Mo, smaller than or equal to 0.003 percent of Sb, smaller than or equal to 0.010 percent of Sn, smaller than or equal to 0.012 percent of As, smaller than or equal to 0.0002 of H and the balance of Fe and investable impurity elements. The prepared low-carbon high-tenacity steel plate has the advantages that the thickness can reach 100 to 110 mm, the core part performance is excellent, particularly a low-temperature impact value at minus 38 DEG C is over 120J, and the Z-direction performance is good and is higher than the highest requirement, namely Z-direction performance being 35 percent, of a standard steel plate.

The invention discloses a thin-film solar cell based on an inorganic planar hetero-junction and a preparation method thereof. The solar cell comprises a glass substrate, an FTO layer as the anode, a planar hetero-junction photoactive layer composed of a TiO2 nano-structure compacted thin film and a Sb2S3 mono-crystal bulk single-layer compacted thin film, a polymer PCPDTBT electron blocking layer, a composite hole transport layer composed of PEDOT: PSS and Spiro-MeOTAD, and an Au film layer as the cathode of the solar cell. The inorganic planar hetero-junction thin-film solar cell disclosed by the invention has a spectral response range of 300-750nm. When the photoactive layer of the whole cell is under light, the conversion efficiency of the cell is up to 9.11%. The key photoactive layer material of the solar cell as well as the materials of the electron blocking layer, a hole blocking layer and a buffer layer are prepared through a simple solution method. Therefore, the solar cell has great potential for large-scale industrialization.

The invention discloses a process method for prolonging the service life of an upper electrode of an etching machine table. The process method comprises the following steps of 1, shielding a sand blasting space around air holes of the upper electrode; then, performing sand blasting roughening treatment; 2, removing shelters and sand material impurities; 3, performing anodization on the upper electrode surface to form an anodization membrane; 4, shielding a spray coating space around the air holes of the upper electrode; then, spraying and coating a ceramic coating; 5, removing shelter impurities; then, performing drying treatment. The service life of the upper electrode can be effectively prolonged; the corrosion resistant performance is excellent.

The invention discloses a positive electrode active material precursor and a preparation method thereof, and a positive electrode active material. The positive electrode active material precursor comprises secondary particles formed by aggregation of a plurality of primary particles, each secondary particle comprises an internal area and an external area coating the external side of the internal area, the density of the internal area is smaller than that of the external area, and the density of the external area is gradually increased from inside to outside. According to the positive electrodeactive material precursor of the invention, the positive electrode active material adopting the positive electrode active material precursor has high initial charge specific capacity, initial discharge specific capacity, initial coulombic efficiency and cycle performance, so that the lithium ion secondary battery can have high initial charge specific capacity, initial discharge specific capacity,initial coulombic efficiency and cycle performance at the same time.

The invention relates to an anti-erosion iron runner castable for a large blast furnace. The material comprises, according to weight percentage, 58-64 parts of compact brown fused alumina particles, 2-5 parts of white corundum particles, 16-23 parts of silicon carbide, 5-7 parts of aluminum oxide micro-powder, 2-3 parts of pure calcium aluminate cement, 2-3 parts of silicon dioxide micro-powder, 1.5-2.5 parts of spherical asphalt particles, 0.5-1.2 parts of carbon black powder, 1.5-3.5 parts of metal silicon powder, 0.2-0.6 part of boron carbide, 0.1-0.2 part of metal aluminum powder, 0.15-0.2part of a water reducing agent, 0.6-1 part of an anti-erosion agent and 0.05-0.08 part of explosion-proof fibers. According to the castable, the service life of a primary runner of a main runner is prolonged, and the stability of safe operation of an iron runner is improved. It is verified that the requirements for rapid baking without cracking, erosion resistance, oxidation resistance, slag adhesion resistance and iron flux can be met, the iron flux can reach 180000 tons or above without repairing, and good application prospects are achieved.

The invention discloses a self-stress and self-compacting fiber concrete and a preparation method thereof. The preparation method comprises the following steps: (1) adding awater reducer or the water reducer and the thickening agent into water at the same time and stirring evenly; (2) feeding coarse aggregate and fine aggregate according to a ratio into a stirring barrel and evenly stirring; (3) adding fibers according to a certain ratio into an evenly mixed coarse aggregate-fine aggregate mixture and stirring so that the fibers can be evenly dispersed; (4) feeding cement or cement and a mineral additive into the stirring barrel according to a certain ratio and evenly stirring; and (5) feeding water doped with an additive obtained in the step (1) into the mixture obtained in the step (4), stirring evenly and discharging, thus obtaining the self-stress and self-compacting fiber concrete. According to the self-stress and self-compacting fiber concrete and the preparation method thereof, expansion of microcracks and generation of macro-cracks inside core concrete can be effectively inhibited, tensile strength, flexure strength, toughness, shock resistance and fatigue resistance of the core concrete can be improved, brittleness of the core concrete can be obviously reduced, and ductility of components can be enhanced.

A filter system for filtering intake air of a gas turbine, comprising a first filter arrangement and a second filter arrangement, located downstream from the first filter arrangement and having a higher collection efficiency than the first filter arrangement. Furthermore, a guard filter arrangement, having a lower collection efficiency than the first filter arrangement, is located between the first filter arrangement and the second filter arrangement.

The invention discloses a scanning interferometer device for measuring an imaging Fourier transform spectrum. The scanning interferometer device is composed of a beam splitter, a movable arm and a static arm. The scanning interferometer device is characterized in that the movable arm and the static arm are in light path folding structures and share a fixed double-faced plane reflecting mirror; two reflecting surfaces of the plane reflecting mirror are respectively used for vertically reflecting incident light beams of the movable arm and the static arm to the beam splitter; a compensation plate is inserted into a light path of the static arm to compensate a light path difference between the two arms. The folding structure of a light path of the movable arm can be used for overcoming the inclined and transverse movement problems of light beams in the movable mirror scanning process of a Michelson interferometer; the compensation plate is inserted into the light path of the static arm to reduce the high requirements on a dynamic range of an area array detector by the measurement of the imaging Fourier transform spectrum; the light paths of the two arms are folded and one double-faced plane reflection mirror is commonly used so as to reduce the volume of a scanning interferometer. A constructed imaging Fourier transform spectrometer is very small-sized and compact, and has good application benefits in a plurality of fields including physics, biology, chemistry, medicine, pharmacy, foods, environmental friendliness, remote sensing, spaceflight and the like.