109 results about "Volume loss" patented technology

A method of detecting disconnect of a patient circuit of a ventilation system, wherein a circuit disconnect is detected with a first sensitivity and a second sensitivity. The circuit disconnect detected with the first sensitivity is performed by detecting a volume loss for a minimum period of time, detecting a peak pressure loss for at least two consecutive breathing cycles or a minimum period of time, and detecting a pressure loss continuing for a predetermined period of time. The circuit disconnect detected with the second sensitivity is performed by detecting a volume loss for a single breathing cycle, detecting a pressure loss for a single breathing cycle, and detecting an increase of compliance. The first sensitivity is lower than the second sensitivity. Preferably, an alarm is activated when the circuit disconnect is detected with the first sensitivity, and subsystems of the ventilation system is informed of the circuit disconnect that has been detected with the second sensitivity.

An exhaust system suitable for high volume exhaust from flexible disposable bags is described that prevents nutrient media volume loss and prevents cross-contamination without using any filters. The invention described here allows the use of disposable two-dimensional bioreactors for the cultivation of bacterial and other organisms and cells require high aeration.

A high sulfur content crude oil feedstream is treated by mixing one or more selected solvents with a sulfur-containing crude oil feedstream for a predetermined period of time, allowing the mixture to separate and form a sulfur-rich solvent-containing liquid phase and a crude oil phase of substantially lowered sulfur content, withdrawing the sulfur-rich stream and regenerating the solvent, hydrotreating the remaining sulfur-rich stream to remove or substantially reduce the sulfur-containing compounds to provide a hydrotreated low sulfur content stream, and mixing the hydrotreated stream with the separated crude oil phase to thereby provide a treated crude oil product stream of substantially reduced sulfur content and without significant volume loss.

A method and material for forming translucent wear resistant dental enamel and the dental enamel material formed which has an opacity less than 50 percent and a localized wear volume loss of less than 0.025 mm3. The dental enamel material is formed from a polymerizable matrix and a filler. The material for forming translucent wear resistant dental enamel having an opacity less than 50 percent, a localized wear volume loss of less than 0.025 mm3 and a localized extended wear volume loss of less than 0.04 mm3, comprises a polymerizable matrix forming liquid and inorganic filler particles. The liquid comprises polymerizable material having a first refractive index. The filler comprising a first plurality of particles having a second refractive index. The first plurality of particles being formed from a low and a high median particle size plurality of particles. The low median particle size plurality of particles having a median particle size between 0.1 and 1.0 micrometers. The high median particle size plurality of particles having a median particle size between 1 and 10 micrometers. The first refractive index being within 5 percent of said second refractive index. More preferably the low median particle size plurality of particles have a median particle size between 0.3 and 0.7 micrometers, and said high median particle size plurality of particles have a median particle size between 1 and 2 micrometers. More preferably the filler further comprises a second plurality of filler particles having an average particle size of from about 0.01 to about 0.04 micrometers.

Tools and techniques for estimating a probability that a patient is bleeding or has sustained intravascular volume loss (e.g., due to hemodialysis or dehydration) and / or to estimate a patient's current hemodynamic reserve index, track the patient's hemodynamic reserve index over time, and / or predict a patient's hemodynamic reserve index in the future. Tools and techniques for estimating and / or predicting a patient's dehydration state. Tools and techniques for controlling a hemodialysis machine based on the patient's estimated and / or predicted hemodynamic reserve index.

The embodiment of the invention discloses a control method, control equipment and a mobile communication system of an auxiliary carrier. The method comprises the following steps of determining whether an auxiliary carrier de-activating condition of a preset mobile terminal is satisfied or not according to any one of a service cell resource, the service volume of the mobile terminal and the coverage state of the mobile terminal; and if the auxiliary carrier de-activating condition of the mobile terminal is satisfied, controlling the uplink auxiliary carrier of the de-activating mobile terminal. By the control method, the control equipment and the mobile communication system, adaptive activation and de-activation of the auxiliary carrier can be relatively and flexibly realized, the carrier resource of the system is optimized, the volume loss of the system is relatively well reduced, the uplink and downlink throughput of the user can be relatively well reduced, and time delay is reduced.

The invention discloses a rotor type immersible pump with an eccentric shaft directly connected with a motor and the rotor type immersible pump is applicable to work under liquids. The rotor type immersible pump comprises a pump body, a rotor, a piston, the eccentric shaft, a pump seat and a submersible motor. According to the eccentric mechanism principle, the piston reciprocates; the eccentric shaft is directly arranged on a projecting shaft of the submersible motor; when the eccentric shaft is driven to rotate by the motor, the piston rotates around the eccentric shaft while reciprocating, so that liquid is sucked and discharged. Due to high-speed running, the piston conveys liquid twice when the rotor rotates for every turn and consequently the liquid flow is outputted steadily with no pulse, small vibration and low noise; besides, the rotor type immersible pump with a small size, a few parts, low cost, small hydraulic loss and small volume loss has efficiency of over 70% and remarkable energy-saving effect, and is an upgraded high-efficiency energy-saving product of a centrifugal immersible pump. In addition, the rotor type immersible pump has the good self-pumping performance of a displacement pump, thereby being capable of not only conveying water type liquids, but also pumping viscous liquids such as oils as well as gas-containing liquids; the application range of the rotor type immersible pump is expanded.

This invention relates to a preparing method for coating Li4 Tis O12 on the surface of Li Mn2 O4. A compound with Li and Ti is mixed under the action of a gel for a period of time, then mixed again to become a dry gel, which is baked under 10-250 deg. C for 1-24 hours to become a predecessor to be sintered for 5-24 h under 300-900deg.C to get a LiMn2O4 electrode material with different coated contents. Since this invention considers the 'zero strain' structure of Li4 Ti5 O12 and utilizes its rather high Li diffusion factor, the volume loss resulted from the dissolution of LiMn2O4 is reduced, which not only increases the circulation performance of LiMn2O4, but also influences very little in the process of 10C large current charge and discharge.

The invention discloses a method for determining a power battery SOP, which includes steps of step 1, selecting temperature, polarization voltage, duration time, SOC and SOH of a measurement target; step 2, adjusting the battery to the target temperature, SOC and SOH; step 3, adjusting the battery to the target initial polarized voltage; step 4, acquiring discharge coulombic efficiency at set timeunder an appointed rate; step 5, acquiring the charge coulombic efficiency at set duration time under the appointed rate; step 6, performing curve line and curve face function fitting on results acquired in steps 4 and 5; step 7, acquiring battery damage evaluation of given power under a given condition according to the fitting result, and acquiring the maximum bearable power of the battery. Themethod for determining the power battery SOP has the advantages of directly carrying out quantitative evaluation on battery volume loss by coulombic efficiency, providing a reliable basis for the battery power used by the control strategy, setting the initial polarized voltage condition; the method includes the influence of using history on the SOP, thus the measurement is more exact and reliable.

The invention relates to the field of deep sea culture, in particular to a marine ranching device used in a deep sea culture area. The marine ranching device used in the deep sea culture area comprises a rectangular floating block, gauge piles are welded to the four corners on the bottom of the floating block, the tail ends of the gauge piles are fixedly connected with anchor blocks, a cage is arranged among the gauge piles, and screw rods are arranged in the gauge piles. Motors are fixedly connected with the tops of the gauge piles, the motors are located in the floating blocks, the screw rods are connected with the motors, a fixing frame is arranged between every two adjacent gauge piles, the fixing frames are arranged outside the cage and make no contact with the cage, a plurality of fixing blocks are welded to the fixing frame, bearings sleeve the fixing blocks, rotary shafts are connected with inner rings of the bearings, and a plurality of arc-shaped plates are arranged on the rotary shafts. By means of the marine ranching device, the problems in the prior art are solved that the cage volume loss rate is high, the breeding efficiency is low and the breeding environment is poor.

Non-surgical methods and systems of facial restoration, and more particularly a multi-technique method utilizing tissue tightening, collagen shortening and remodeling with long term fillers to provide for non-surgical facial sculpting and lift are provided. The methods and systems address the predictable pattern of multi-layered volume loss of tissue from the skin to the bone as a result of aging.

The invention discloses nickel base alloy powder for overlaying welding of the sealing surface of the intake and outlet valve of automobiles. The nickel base alloy powder comprises the components with the following weight portions of 25-27 percent of Cr, 4-6 percent of Mo, 10-15 percent of Fe, 2-3 percent of Si, 1.5-2 percent of B, 0.65-0.75 percent of C and Ni for the rest. The beneficial effects of the invention are (1) low cost, (2) good technological properties and (3) high hardness. The nickel base alloy powder can take the place of cobalt base alloy powder and has low cost. The price of the nickel base alloy powder is one third of the price of the cobalt base alloy powder. The nickel base alloy powder is especially suitable for plasma overlaying welding technology and vacuum furnace melting technology of the sealing surface of the intake and outlet valve of automobiles and locomotives. Compared with Stellite No. 6 cobalt base alloy powder, the welding layer of the invention processed by the same plasma arc overlaying welding technology has a same volume loss (mm <3>) in wear test. By comparing the hardness of the nickel base alloy powder with the hardness of the Stellite No. 6 cobalt base alloy powder, the two powders have the same hardness HRC which is 43 after the powders are cooled to room temperature. The two powder after being welded have the same hardness under 400-700 centigrade temperature in the furnace, while the nickel base alloy powder has better red-hardness.

The invention discloses a skid and scrub resistant rotationally molded product and a preparation method thereof, and belongs to the technical field of rotationally molded materials. The skid and scrub resistant rotationally molded product comprises a low-density polyethylene base and a skid and scrub resistant layer added on the base, and the skid and scrub resistant layer is composed of linear low-density polyethylene, an inorganic wear-resisting agent, a high molecular reinforcing agent and an auxiliary agent. The rotationally molded product is prepared through three steps: processing of the inorganic superfine wear-resisting agent, preparation of a rotational molding composition for the skid and scrub resistant layer, and preparation of the rotationally molded product. The skid and scrub resistant rotationally molded product has smooth inner surface and outer surface, is good in layer combination, and has no warping, no deformation, no foams and no recesses, the scrub-wear volume loss of the product is reduced by 50% or more, and the preparation method of the skid and scrub resistant rotationally molded product is simple, safe and obvious in effect.

The invention provides a method for determining a safe vertical distance between the shield and karst cave in the sand karst stratum. The method comprises the following steps: firstly, surveying the field geology of a project; secondly, establishing a finite element analytical model by utilizing three-dimensional finite element modeling software for simulating a karst cave, the excavation face balance, the stratum loss, a lining and slag cart and the shield tunnel construction excavation; thirdly, calculating the vertical displacement of shield tunnel excavation on the karst cave under different working conditions; and fourthly, making a normalized relational graph of the karst cave roof sedimentation and the distance between the karst cave and the tunnel. The method sufficiently takes shield tail volume loss into consideration when the karst cave is positioned under a tunnel during shield tunnel construction, and calculates a safe vertical distance formula for the tunnel excavation influenced karst cave by analyzing the normalized relation among karst cave roof sedimentation, vertical distance between the karst cave and the tunnel and the diameter of the karst cave; and the formula is simple and clear, is beneficial to quick and intuitive judgment of a field engineer, and can be used for improving the construction efficiency.

Provided are a system and method for self-service payment for defaulting subscribers in the telecom 3G mobile network. The system comprises existing devices in a telecom core network packet domain, packet data serving nodes (PDSNs), authentication, authorization and accounting (AAA) servers, a business operation support system, two new devices added for implementing the function of self-service payment for the 3G mobile defaulting subscribers, an L2TP network server and an access control device. According to the system and method, after phone outage happens to the mobile subscribers because of arrearage, the mobile subscribers can still have access to the online business hall for self-service payment but are not allowed to use data services. The payment mode breaks through traditional payment modes, paperless operation is achieved, the system and method conform to consumption concepts of the mass network era, 7*24h non-stop services are user-friendlier, the situation that phone outage happens to the subscribers because of arrearage, inconvenient use is caused and consequently various complaints are brought is avoided, and the satisfaction degree of the subscribers is greatly increased; meanwhile, business volume losses brought by phone outage caused by arrearage are eliminated for telecom.

A method for measuring the amount of fluid contained in a reaction vessel in a clinical analyzer includes the steps of adding a first aliquot of fluid to the reaction vessel and measuring the quantity of fluid contained therein. A second aliquot of fluid is then added to the reaction vessel and the quantity of fluid contained therein is also measured. Measurement of the two fluid quantities can occur with or without removal of the first aliquot in between measurements. In obtaining the two quantity measurements and comparing them against a standard, the effects of well geometry can be minimized. Preferably, a delta or ratio measurement is obtained between the first and second liquid volume measurements which can be compared against a standard so as to normalize apparent volume losses or gains due to reaction well dimensional variation. This approach enhances the analytical capability to detect true fluid delivery errors.

The present invention refers to a composition that is useful as a filler for the correction of soft tissue volume loss, for example for the cosmetic treatment of wrinkles, or for the treatment of disorders such as lipoatrophy or lipodystrophy in general, said composition comprising agarose and hyaluronic acid, or a pharmaceutically acceptable salt thereof. The particular interaction that takes place between the two components makes even high concentrations of agarose injectable and tolerable, said high concentrations being particularly useful for ensuring the duration and stability over time of the aesthetic results that are achievable using this filler.

Provided is an asymmetric backfilling type friction stir spot welding method eliminating holes and annular trenches. The method is used for solving the problem that in the process of symmetric backfilling type friction stir spot welding in the prior art, the volume of plastic metal remaining at the backfilling stage is small, a gap generated after back-drawing of a stir sleeve can not be filled, and consequently the defects of root holes or surface annular trenches occur. The method includes the steps that firstly, the initial position of a welding tool is set so that the lower surface of a pressing ring, the lower surface of the stir sleeve and the lower surface of a stir pin can be located in the same horizontal plane as the upper surface of a board to be welded; secondly, dipping of the stir sleeve and back-drawing of the stir pin are performed, and the cavity generated after back-drawing of the stir pin is just filled with plastic metal extruded by the stir sleeve; thirdly, variable-speed backfilling of the plastic metal is performed, and the amount of the plastic metal extruded by the stir pin from the center cavity of the stir sleeve is increased so that the gap generated after back-drawing of the stir sleeve can be better backfilled. Finally, the horizontal position of the lower surface of the stir sleeve and the lower surface of the stir pin is lower than the horizontal position of the upper surface of the board to be welded by a certain distance, so that the metal volume loss is compensated for. The method is used for friction stir spot welding.

The invention relates to a novel multistage centrifugal pump. A pump shaft is provided with a group of impellers and guide vanes. Runners among the impellers are communicated in the middle. A last stage impeller is connected with a water spray section. The rear side of the last stage impeller is provided with a post axial force balancing device. The post axial force balancing device consists of a balancing drum arranged on the pump shaft, a balancing drum sleeve sleeved outside the balancing drum and a balancing chamber, wherein a gap is reserved between the balancing drum and the balancing drum sleeve; and the surface of the balancing drum is provided with a plurality of axial grooves. The invention has the advantages that: (1) the leakage from the radial gap between the balancing drum and the balancing drum sleeve is small, so difference between front and rear pressures of the balancing drum is increased so large as to make the balancing of the axial force by the balancing drum convenient; (2) the novel multistage centrifugal pump is provided with a plurality of sets of axial force balancing device so as to meet balancing requirement of the axial force; and (3) the novel multistage centrifugal pump can improve the performance range of the pump, can avoid larger volume loss which occurs because the gap between the impeller and the guide vane is so large that the fluid cannot sufficiently enter the next stage impeller, and improves the efficiency of the pump.

The present invention provides a method for the direct measurement and quantification of the material volume loss on and beneath a first surface of a substrate and thus provides an accurate depiction of the profile of the substrate. The method of the invention comprises inducing multiple eddy currents in a test substrate to determine volume loss.

The invention relates to a high-efficiency energy-saving horizontal self-sucking pump which comprises a pump shell and a pump body, wherein the pump shell and the pump body are formed into a whole, and a flexible material sleeve is arranged on the outlet pipe of the pump body and at the outlet end of the pump shell. When the self-sucking pump is started for vacuum pumping, water can reflow through a gap between the outlet end of the pump shell and the outlet pipe of the pump body to implement a vacuum pumping starting program; when the self-sucking pump normally works, because water pressure is increased, the impulsive force generated by discharged water enables the upper part of the flexible material sleeve at the outlet end of the pump shell to be enlarged and extruded together with the outlet pipe of the pump body to generate a sealing action, and the continuous reflow of the water is blocked, thereby reducing the volume loss of the self-sucking pump and improving the water pump efficiency by 5-8 percent.

The invention provides a primer and a TaqMan probe for fluorescence quantitative RT-PCR (Reverse Transcription-Polymerase Chain Reaction) detection of a rabbit hemorrhagic disease virus. The invention also provides a kit comprising the primer and the probe, and a method for detecting the rabbit hemorrhagic disease virus by using the primer and the probe with one-step RT-PCR. Due to the adoption of a one-step RT-PCR detection technology, reverse transcription and quantitative PCR amplification are continuously completed in one tube, amplification and detection are performed in a totally-closedtube, the probability of pollution caused by multiple operation is reduced, operation is easy, the volume loss in the sampling process is reduced, the dependability of a result is ensured, all cDNA (complementary Deoxyribonucleic Acid) samples obtained by reverse transcription are used for amplifying, and higher sensitivity is achieved.

An evacuated container assembly suitable for use in connection with blood collection including: (a) a container member formed of a first polymeric material and having a sidewall and one or more openings; (b) a nanocomposite barrier coating disposed on the container member having a thickness of up to about 30 microns and being derived from an aqueous dispersion including (i) a dispersed barrier matrix polymer; and (ii) a substantially exfoliated silicate filler having an aspect ratio of more than 50; and (c) one or more sealing members disposed in the opening(s) operative to hermetically seal the cavity; wherein the cavity is evacuated and maintains a pressure below atmospheric pressure and exhibits a draw volume loss lower than that of a like assembly without a nanocomposite barrier film by a factor of at least 1.5.

The invention relates to a high-power fiber laser for anhydrous cooling heat capacity. Hollow structures, heat-conducting strips, filling phase-change materials and airbags are arranged inside a substrate, wherein the heat-conducting strips adopting a deep groove structure is arranged between the hollow structures, and the resilient airbags are placed under the hollow structures; the phase-change materials in the solid state and the liquid state are different in density; when the phase-change materials change from the solid state to the liquid state in the process of heat absorbing, the volume of the phase-change materials increases, and the airbag is compressed to provide an extra volume; when the phase-change materials change from the liquid state to solid state in the process of heat releasing, the volume of phase-change materials decreases, and the airbag is expanded to compensate the volume loss; in the process of the volume changing of phase-change materials, the volume is buffered to guarantee a good contact between the phase-change materials and a heat-conducting base. When the laser is in operation, the heat is transmitted to phase-change materials through the heat-conducting strips. After reaching the phase-change temperature, the materials change in phase and absorb a large amount of heat, so as to realize the temperature control of a laser cavity and a pump device.

The invention discloses a rapid evaluation method and a rapid evaluation device for wear resistance of a coating sample array. The rapid evaluation method comprises the following steps: firstly, preparing an array type coating on a substrate; preliminarily grinding a sample coating, and then conducting an accelerated wear test on the sample coating subjected to preliminary grinding according to identical wear parameters; after the wear is finished, acquiring coating surface morphology information of a worn coating sample array through an optical three-dimensional profilometer, and converting the coating surface morphology information into digitalized intensity information through a CCD detector; transmitting the digitalized intensity information to a computer and calculating wear volume through special 3D image analysis software; evaluating wear resistance of coatings at various lattice point positions of the sample according to the wear volume losses of all sample lattice points underthe same conditions within the same time and screening out a coating material with optimal performance. By adopting the rapid evaluation method and the rapid evaluation device disclosed by the invention, the influence of human factors on the processes of preparation, change, installation and the like of the sample on a traditional sample wear testing machine is overcome, and the detection efficiency of wear performance is improved.

The invention relates to a geotechnical engineering model test device, in particular to a test device for a model of sand well wall static liquefaction induced by hydrate depressurization mining. Thetest device comprises a sealed box with glass on the front side, a hydraulic control assembly, an inflation control assembly, a temperature control assembly, a volume loss control assembly and a dataacquisition assembly, wherein the model box is filled with water, clay and sand from top to bottom, and a mining well is buried on the side close to the glass; the hydraulic control assembly is used for controlling pressure of water in the sealed box; the inflation control assembly is used for supplementing gas for sand to simulate the process of changing saturated sand into gas-bearing sand, andthe temperature control assembly is used for controlling the temperature of the sand in the sealed box; the volume loss control assembly is used for simulating the volume loss when static liquefactionoccurs; the data acquisition assembly is used for acquiring data needed for the test. The device can simulate the static liquefaction instability behavior of the sand well wall in the depressurization mining process of the natural gas hydrate, and has the characteristics of being convenient to operate, simple in structure, accurate in control and the like.

The invention provides a lithium ion battery and an anode plate thereof. The anode plate of the lithium ion battery comprises an anode current collector and an anode active substance layer applied on the anode current collector, wherein the anode active substance layer comprises an anode active material, a conducting agent and a bonding agent; the anode active substance layer also comprises a lithium-containing compound; the general formula of the lithium-containing compound is Li<3-x>AxN<1-y>Dy; before the formation of the lithium ion battery prepared by using the anode plate of the lithium ion battery, the lithium ion battery is firstly subjected to precharging so as to decompose the lithium-containing compound. The anode plate of the lithium ion battery can reduce the inreversible volume loss of the first cycle circulation of the lithium ion battery; the energy density of the lithium ion battery is improved; the side reaction in the charging and discharging process is reduced; the circulation performance of the lithium ion battery is improved.