114results about How to "Improve retention efficiency" patented technology

The present invention provides a nonwoven fabric for cylindrical bag filter, wherein a long-fiber nonwoven fabric made of a synthetic fiber is used and the long-fiber nonwoven fabric is a long-fiber nonwoven fabric which is made of a thermoplastic continuous filament and is partially thermocompression-bonded. It is preferable that the circular arc flexural rigidity per basis weight is 0.050 to 1.000 ((cN/2 cm)/(g/m2)) and the air permeation rate per basis weight is 0.010 to 0.500 ((cc/cm2/sec)/(g/m2)). Further, there is provided a method for producing a nonwoven fabric for cylindrical bag filter including the steps of: melt-extruding a thermoplastic polymer through a spinneret; sucking and drawing the extrudate with an air sucker to form a thermoplastic continuous filament; allowing the filament to be subjected to electrification opening and to be piled on a moving collection surface to form a fiber web; and allowing the fiber web to be subjected to pressure welding treatment with a flat roll and partially thermocompression-bonding the fiber web with hot embossing rolls to form a long-fiber nonwoven fabric.

The invention relates to an advertisement visitor retrieving method and an advertisement putting system. The method comprises the steps that tagging processing is performed on user behaviors, and a crowd tag database is established; a big data analysis method is used, the attributes of users and the user behavior tags are analyzed by using the hadoop big data cluster analysis technology of the DASP data master, advertisement visitors are retrieved, an advertiser database is established and the target users are accurately located; and the advertisement putting system is applied to put appropriate advertisements to the user terminals. The big data mining technology is combined to advertisement accurate putting, and the conventional problem that the advertisement putting users cannot be retrieved can be solved by using the modern internet advertisement technology. A virtual crowd base is established through tagging, the internet characteristics of the users are analyzed, and secondary marketing of the previous visitors is performed. The visitors are classified in a detailed way, the reasons of loss of the users are analyzed through combination of the data and the retaining efficiency of the users can be enhanced.

Methods and systems for identifying an aerosolized agent. A method for identifying an aerosolized agent includes the steps of providing a sample potentially containing an aerosolized agent, concentrating the sample with an aerosol collector, analyzing the concentrated sample on a collection substrate using spectroscopy to produce an aerosolized agent analysis output, comparing the analysis output to a database of known agent analysis outputs; identifying the aerosolized agent based on the comparison; and alerting a user to the presence of an aerosolized agent in the sample.

The invention relates to a culture facility for the mixed culture of fishes and sea cucumbers and use method thereof, in particular a structural improvement on the current cages for the mixed culture of fishes and sea cucumbers. The culture facility comprises an anchor rope, a case body, a floater, a cover net, a shield and a sinker. The use method is characterized by using a compact net to manufacture a net case body, adding the shield into the net case to increase three-dimensional space of the system and provide habitat for the sea cucumbers, wherein off-bottom culture of the sea cucumbers can be realized by using the facility, and deposits generated during fish culture can be effectively utilized. The facility has a simple structure and a convenient manufacture process, and is capable of culturing sea fishes while polyculturing the sea cucumbers with higher economic value; therefore, the facility expands the current breeding space, effectively reduces the environment pollution problem caused by culturing sea fishes and increases the economic returns of the system.

The invention discloses a manufacturing method of a nucleopore filtration film to optimize flow passages in the technology field of liquid filtration. The manufacturing method is that a heavy ion accelerator or a reactor is used to radiate an insulation film and radiation damage is formed inside the insulation material; a solvent type release layer is coated on the insulation film; an alkalifast adhesive film is compounded on the surface of the release layer at low temperature to form a composite film; subsequently, under the optimized etching condition, the composite film is etched on one side under the protection of the adhesive film, thus forming non-biconical micropores; the release layer is stripped off at ordinary temperature; the microporous film is washed in de-ionized water before the composite film is dried. The microporous film made by using the method can have the thickness more than 10 micrometers, the opening rate on the upper surface of the film less than 1 percent and the porosity on the lower surface more than 10 percent. When the microporous film is used for liquid filtration, the flow resistance is small, the flow is large, granules are unlikely to be absorbed and cause dead end filtration. The method provided by the invention is applicable for producing films in batch; the process is well-developed; product quality is controlled easily and the cost is low.

A holding structure and a vehicle sunshade used thereof includes a seat and a bonding member. The seat includes a body, a clamp portion connected to the body and an extended portion connected to the body and extended in a direction remote from the clamp portion. The body has a first connection plane faced the extended portion. The extended portion has a second connection plane faced the body. The bonding member is bonded to the first connection plane and the second connection plane, and includes a first bonding surface corresponding to the first connection plane and a second bonding surface corresponding to the second connection plane. The invention can hold the vehicle sunshade on a vehicle window frame and provide firmer bonding of the vehicle sunshade to the vehicle window frame through the two bonding surfaces.

The invention relates to a hard carbon material as well as a preparation method and application thereof. A conductive additive is introduced into the hard carbon material precursor to improve the conductivity of an obtained material, and a large number of oxygen-containing functional groups are introduced in combination with variable-speed heating pre-oxidation, so that the crosslinking degree ofa material skeleton is increased, the strength of the material is improved, and the sodium storage specific capacity, the first-circle coulombic efficiency and the rate capability are remarkably improved. The hard carbon material has the advantages of high reversible capacity, high first-circle coulombic efficiency, good cycling stability and the like when being used for the sodium ion battery. The material has the characteristics of simple preparation method and cheap and easily available raw materials, and provides more choices for the negative electrode of the sodium-ion battery.

The invention discloses a sea cucumber culturing facility and a culturing method applicable to a marine net cage culture area. The culturing facility comprises a traction rope, a culturing cage, an internal lining dense net and a heavy object, wherein the culturing cage is hung at the bottom of a net cage through the traction rope; the bottom of the body of the culturing cage is provided with the internal lining dense net; and the heavy object is hung at the bottom of the culturing cage. Through the facility and the method, the sea cucumber can be cultured by means of the space of the marine net cage culture area, so that sediments at the net cage area are effectively treated and extra economic benefit is gained, and a good environment condition is provided for the growth of the sea cucumber while the sediments of the net cage area are effectively intercepted and treated.

The invention belongs to the technical field of aviation and in particular relates to load calculation of stationed mooring of airplane bodies and landing gears on a motion platform deck. An airplane mooring load calculating method is characterized by providing a non-linear GAP unit FEM calculation analyzing method which is high in universality and based on MSC. PATRAN/NASTRAN environment. External load (wind load and mass inertia force) is applied according to a full airplane mooring balance equation; the mooring load calculation situation is comprehensively and meticulously divided, so that the purpose of automatically screening and judging bearing mooring cables and the maximum mooring load is achieved on the premise of without changing the airplane and a motion platform deck model, and the work efficiency and the solving accuracy are improved.

The invention relates to a mechanism for classifying inhalable particles and measuring concentration as well as a detection method of the mechanism. One end of a fine particle collecting probe is sequentially communicated with one end of a heat insulating drying chamber, one end of an aerosol neutralizer and one end of a corona discharger; the other end of the corona discharger is divided into two paths, wherein one path is sequentially communicated with a low-voltage cascade-stage striker and a multi-channel electrometer, and the other path is sequentially communicated with a high-voltage electrode electric field and an air purifier. The mechanism disclosed by the invention is small in size, rapid in response, capable of being used for all-weather detection and playing of PM values, designed according to a standard data interface and compatible to various external equipment; the collected sample fine particle gas has collision with free electrons to form electron avalanche; the particles are classified into a plurality of grades according to the inertia of the particles and pneumatic particle sizes; current value generated by deposition of charged fine particles in various particle sizes is measured by the multi-channel electrometer; the concentration of the particles is reflected according to the current value of each particle size, and measurement results are shown in various forms, thus ancillary support and mass reliable data are provided for environmental monitoring and treatment.

The invention discloses one filteration- deposition combined perfusion system used for animal cell perfusion culture. It comprises filtering- deposition- perfusion column, peristaltic pump, automatic controller, tri- way pipeline and pipe clamp; filtering- deposition- perfusion column is connected with peristaltic pump through tri- way pipeline, the rotation of peristaltic pump is controlled by automatic controller, pipe clamp is installed on pipe between filtering- deposition- perfusion column and peristaltic pump. The invention is characterized by simple structure, low cost, high collecting efficiency, long life length and wide application on micro- carrier or cluster animal cell perfusion culture.

The embodiment of the invention provides a database transaction keeping method and system, equipment, a program and a storage medium. When a database instance is abnormal, if an unsubmitted transaction exists, a proxy server can assist the database instance in recovering the unsubmitted transaction after the database instance finishes the abnormal state, and roll back data of the unsubmitted transaction to a data version corresponding to a specified rollback node. After the transaction is recovered and the data is fallback, the proxy server can send a database statement after the fallback node, and the database server can execute the database statement after the fallback node in a correct state. Furthermore, after the database ends the abnormal state, the maintenance of the unsubmitted transaction can be realized under the condition that a user does not perceive, the dependency of the transaction maintenance on a client is reduced, the data of the transaction can be accurately returned to a certain version based on the rollback node, the time cost and the resources cost required for recovering the transaction are reduced. And the transaction maintenance efficiency is improved.

The invention relates to the technical field of water treatment, and in particular relates to a non-valve filter with double filter layers used for water treatment. The filter comprises a water inlet pipe, a filter unit and a siphon system, wherein the water inlet pipe is located at the left upper part of the filter; a baffle is arranged at the opening of the water inlet branch pipe; homogeneous ceramsite filter material is located above a lower filter plate; an upper filter plate is located under a top cover; four clear water pipes run through the upper and lower filter plates and the filter material; a first water distribution chamber is located between the outer wall of the filter and the inner ring; a second water distribution chamber is located in an inner ring of the filter and above the filter material; a clear water chamber is located in the inner ring and under the lower filter plate; a water outlet is located at the right side of a flushing tank; the flushing tank is communicated with the clear water pipes; a siphon rising pipe is connected with a siphon down pipe and communicated with a top cover of the filter unit; the end of the siphon down pipe is provided with a washing intensity regulator and immersed in a drainage weir; a siphon break funnel is located at the left upper part of the flushing tank and connected with a siphon break pipe; an exhaust pipe and a siphon auxiliary pipe are located at the left side of the filter. The filter realizes automation of whole process of filtering and back flushing, is simple in operation, and is economical and practical.

The invention relates to an efficient sewage interception device and an efficient sewage interception operation method for urban road gutter inlets. The efficient sewage interception device comprisesa collecting well body and a water collecting pipe, wherein the collecting well body comprises an upper collecting well body and a lower collecting well body which are detachably connected into a whole vertically by insertion, and the bottom of the lower collecting well body is provided with a microorganism filler layer. A vertically two-section rainwater grate of a hanging-basket structure is mounted at the upper end of the upper collecting well body, and a vertical-flow sand settling device is arranged in the upper collecting well body and comprises a splayed reflecting component, a silt interception component of a rectangular pyramid and an anti-sludge resuspension component of an inverted square frustum structure which are arranged from top to bottom. The efficient sewage interceptiondevice integrating a gutter inlet sewage interception modification technology, the vertical-flow sand settling device and the bottom microorganism filler layer can intercept large solid pollutants, silt and other particles and can ecologically degrade the sludge deposited at the bottom.

The invention discloses a desulfurization wastewater treatment process, which comprises a desulfurization wastewater pretreatment step, a desulfurization wastewater membrane concentration treatment step and a desulfurization wastewater salting-out pretreatment step, wherein the desulfurization wastewater pretreatment step comprises a two-stage electrochemical treatment step and a two-stage softening treatment step, the membrane concentration treatment section is designed into two-stage membrane treatment and comprises a rolled RO device and a mesh pipe type STRO device, and an MVR evaporator and a spray evaporator are combined in the salting-out the treatment section. According to the present invention, any organic agents are not added in the whole process.

The quick false tooth forming process includes the step of forming base molds in different tooth forms and sizes based on the oral cavity structure of human bodies; the step of trial wearing the base mold near the user's oral structure through painting fast hardened soft stuffing to the base mold, making the base mold contact with the maxilla; and the step of trimming the base mold taken down from the user's oral cavity via eliminating the overflowed stuffing and polishing to obtain false teeth well fitting the maxilla of the user. The present invention can reduce false teeth making period and raise false teeth locating efficiency.

The invention discloses a method for removing iron ions from a solution containing neodymium, praseodymium, dysprosium and iron. According to the method, glucose is added to the acidic solution containing neodymium, praseodymium, dysprosium and iron and evenly mixed, the molar ratio between the iron and the glucose is 0.2-2, after hydro-thermal treatment, sediments containing iron are formed at the bottom, the concentration of iron residues in supernatant is 20mg/L, and the retention rate of rare earth elements is higher than 97%. By the adoption of the method for removing iron ions from the solution containing neodymium, praseodymium, dysprosium and iron, the iron can be efficiently separated from the solution containing neodymium, praseodymium, dysprosium and iron, the problem that during rare earth solution purification, iron pollutes an extractant is solved, and the purity and utilization value of the rare earth elements in the solution are improved; the method is suitable for processing the rare earth solution and waste acidic solution containing a high concentration of iron, the rare earth retention efficiency is high, the concentration of residual iron in the solution is low, operation is easy, and the expense is low.