31 results about "Micro capillary" patented technology

The present invention relates to a bio-aggregate based building product comprising a macroporous element formed from a mixture of: a calcium carbonate derived binder and a lignocellulosic bio-aggregate. The macroporous element has an air and / or vapour and / or water open matrix with a microcapillary structure formed by the lignocellulosic bio-aggregate. The porosity of the macroporous element is at least 50% of the bulk volume of the building product. Between 40% and 80% by weight of bio-aggregate granulates forming the lignocellulosic bio-aggregate have a maximum particle size falling within the lower 50% of the particle size range. No more than 5% by weight of bio-aggregate granulates forming the lignocellulosic bio-aggregate have a maximum particle size falling within the upper 20% of the particle size range.

The invention discloses a micro capillary loop, which comprises a tube shell and a filling pipe, wherein the inside of the tube shell is a ring cavity, and the filling pipe is outside the tube shell and communicates with the ring cavity. The tube shell is provided with a first capillary core and a second capillary core. The cross section of the main part of the first capillary core completely occupies the cross section of the ring cavity, and the rest part of the first capillary core is arranged on one side or both sides of the main part of the first capillary core, and the cross section of the rest part of the first capillary core occupies a part of the cross section of the ring cavity. The second capillary core is continuously arranged in the ring cavity and connected with the first capillary core at least at one end. The heat transfer capacity of the micro capillary loop is greatly improved compared with the same volume heat pipe, and the micro capillary loop can support the heat dissipation of multiple dispersed heat sources, has the advantages of small volume, high efficiency, reliability and low cost, and can be used in communication terminals such as mobile phones, and has great economic value.

A method for forming a monolith of carbon molecular sieves includes loading a resin into an extruder; heating the resin to form a polymer melt; introducing the polymer melt into a microcapillary film die to form microcapillaries in the polymer melt; quenching the polymer melt to form a microcapillary film; generating a microcapillary film layer; laminating the layers or placing the microcapillary film layers into a mold; heating the microcapillary film layers to a temperature of 50 DEG C to 350 DEG C to form a polymer monolith; pyrolyzing the polymer monolith by heating the polymer monolith to a temperature of 500 DEG C to 1700 DEG C to form the carbon molecular sieve monolith; and activating the carbon molecular sieve monolith using one or more oxidizing agents.

The present invention relates to a bio-aggregate based building product comprising a macroporous element formed from a mixture of: a calcium carbonate derived binder and a lignocellulosic bio-aggregate. The macroporous element has an air and / or vapour and / or water open matrix with a microcapillary structure formed by the lignocellulosic bio-aggregate. The porosity of the macroporous element is at least 50% of the bulk volume of the building product. Between 40% and 80% by weight of bio-aggregate granulates forming the lignocellulosic bio-aggregate have a maximum particle size falling within the lower 50% of the particle size range. No more than 5% by weight of bio-aggregate granulates forming the lignocellulosic bio-aggregate have a maximum particle size falling within the upper 20% of the particle size range.

The invention provides a high-capacity electrically-driven tattooing device. The large-capacity electrically-driven tattooing device comprises a driving assembly, a first driving assembly and a second driving assembly, the needle outlet assembly is installed at the bottom end of the driving assembly, and the needle outlet assembly comprises a damping sleeve, a buffering rubber sleeve, a connecting rod fixing base, an upper shell, a needle head connecting rod, a needle head, a middle shell and a lower shell. According to the large-capacity electrically-driven tattooing device, the annular porous color storage assembly is an annular feature piece with a porous network and is made of a porous material such as sponge, sintered metal and a ceramic porous body, a large number of micron-sized pores which are communicated with one another exist in the annular porous color storage assembly and are equivalent to countless micro capillary tubes, and liquid can be sucked to the top of the material through the capillary action of the pores; even the gravitational equilibrium height when no material exists is broken through, so that more pigment can be stored, the number of times of dipping the pigment by a tattooist is reduced, the interruption frequency of large-area tattooing operation is reduced, and the working efficiency is improved.

Systems and methods for recovering content of a sample from a microcapillary array are provided. The microcapillary array includes a plurality of microcapillary wells. A laser is positioned to target a first microcapillary well in the plurality of microcap-wells. The laser pulses at least one time at the first microcapillary well. The content from the first microcapillary well is extracted, recovering the content of the first microcapillary well.

Provided herein are microfluidic devices that can be configured to generate an electrophoretic flow that is in opposition to a fluid flow through a microcapillary of a microfluidic device provided herein. Also provided herein are methods that include adding an amount of particle to the inlet area of the microfluidic device as provided herein, generating a first fluid flow through the microcapillary of the microfluidic device provided herein; and applying a uniform electric field to the microfluidic device, where the uniform electric field generates an electrophoretic flow that is in opposition to the fluid flow.

The invention relates to the technical field of slope regreening engineering, and discloses a coastal region graded double-layer ecological water-retaining slope-fixing regreening base material and a spray-seeding method, and the coastal region graded double-layer ecological water-retaining slope-fixing regreening base material comprises a bottom layer spray-seeding base material and a surface layer spray-seeding base material; the bottom-layer base material comprises a supporting interlocking network formed by crude fibers and medium fibers, the crude fibers serve as a framework material and are intertwined and interlocked with the medium fibers, and a communicated macroporous network is formed after spray-seeding solidification and used for providing deep anti-shearing force and plant root penetrating channels; the surface layer base material comprises a covering compact network formed by fine fibers, gaps of a framework are filled with the fine fibers, a micro capillary hole network is formed, and a fiber grading interlocking double-layer structure is formed and used for improving the capillary breakage water content and reducing evaporation loss. The water-retaining agent is arranged in the bottom-layer base material and the surface-layer base material, the water-retaining agent forms a gel-state structure after absorbing water and expanding, the water-retaining agent and the fiber network cooperate to achieve the effects of storing water, slowly releasing water and reducing scouring and stripping of the spray-seeding layer, and the water-retaining agent is suitable for secondary spray repairing of the coastal slope bald spot area.

A system is described that can be used for loading a microcapillary array chip for use with a high-throughput analysis system. The system may include a reservoir and a base for holding a microcapillary array chip in place while loading liquid from the reservoir to microcapillaries of the microcapillary array chip by translating the reservoir across the microcapillary array chip. Samples, reagents, and the like can be loaded into the microcapillary array chip using the system. A hydrating gel can be applied to the microcapillary chip to allow for more complicated microcapillary loading schemes.

A measuring method and a measuring system of a microbubble dispersion liquid for measuring characteristics of the microbubble dispersion liquid while distinguishing between fine particles and differentiating them into microbubbles and solid particles is disclosed. A measuring system measures characteristics of a microbubble dispersion liquid under test, and the system includes a microcapillary holding the liquid under test, a laser device irradiating the liquid under test inside the microcapillary with laser light, a magnetic device that applies a time-varying magnetic field to the liquid under test within the irradiation area with laser light, a digital microscope detecting scattered light generated from fine particles contained in the liquid under test by irradiation with laser light, and a measurement device that measures characteristics of the test liquid by distinguishing between the fine particles and differentiating them into microbubbles and solid particles based on the brightness of scattered light detected by the microscope.

The application discloses an active guide wire, which comprises a front end guide wire and a rear end handle, wherein the front end guide wire comprises a central framework, a spring sheath sleeved at the front end of the central framework, and at least one shape memory alloy arranged on the central framework and located behind the spring sheath; the shape memory alloy is wound on the central framework through a micro capillary tube; the shape memory alloy is arranged on two sides or one side of the central framework in an even interval along the axial direction of the central framework; and one end of each shape memory alloy is connected with the power supply of the rear end handle through a wire. The front end of the guide wire is bent by the contraction of the SMA material under the action of electricity, so as to adapt to the complex blood vessel environment in the operation process; compared with the existing passive guide wire, the active guide wire can improve the operation efficiency, reduce the damage to the blood vessel, has higher flexibility and stronger practicability.

A method of recovering the contents from a microcapillary array having a plurality of wells each with mutually opposed first and second openings. The method comprises: a) identifying a target well of the array for recovery from among a plurality of wells of the array; b) bringing first and second recovery ducts into contact with the array in alignment respectively with the first and second openings of the identified target well to effect fluid communication between those ducts and that well through the respective first and second openings; and c) by flowing fluid from the first recovery duct through the identified target well and into the second recovery duct, conveying contents of that well into the second recovery duct.

A method of making a carbon molecular sieve (CMS) membrane may include forming a copolymer selected from one or more of a polyvinylidene chloride (PVDC) copolymer, a polyimide copolymer, a polyetherimide copolymer, a polyacrylonitrile copolymer, and a polyphenylene ether copolymer into one or more hollow fibers or one or more microcapillary membranes; pyrolyzing the one or more hollow fibers or the one or more microcapillary membranes with an inert gas or under vacuum at a second temperature of 600 DEG C to 700 DEG C; and annealing the one or more hollow fibers or the one or more microcapillary films with an inert gas or under vacuum at a third temperature of 900 DEG C to 1500 DEG C; the one or more hollow fibers or the one or more microcapillary membranes are oxidized with air at a fourth temperature of 300 DEG C to 400 DEG C.

Methods and configurations for high performance heat exchangers and cold plates, some with internal lattice structures and microcapillaries. Some embodiments include manufacture via laminated object manufacturing methods, which includes patterning a plurality of metal sheets so that at least one metal sheet contains at least one void space of a plurality of void spaces, each metal sheet comprising a self-supporting layer; assembling the plurality of metal sheets so that the plurality of void spaces forms at least one channel; and bonding the plurality of assembled metal sheets to form a heat exchanger with at least one flow path formed from the at least one channel, the heat exchanger having a geometry that is continuously self-supporting through each assembled metal sheet.

The invention discloses an oil-displacing agent containing a cationic gemini surfactant and an application method of the oil-displacing agent, the oil-displacing agent comprises a biquaternary ammonium salt type gemini surfactant and is suitable for unconventional oil reservoirs, and the reverse imbibition effect is enhanced through efficient adsorption and water film regulation of the cationic gemini surfactant in micro capillary pores; the result of an imbibition experiment shows that the imbibition liquid recovery rates of 0.15% N, N, N ', N', N 'hexamethyl diammonium dichloride gemini surfactant and 0.15% N, N, N, N', N 'hexamethyl diammonium dichloride gemini surfactant respectively reach 38.15% and 36.05%, and are respectively improved by 8% and 6%, and the imbibition liquid recovery rates of 0.15% N, N, N, N', N ', N' hexamethyl diammonium dichloride gemini surfactant and 0.15% N, N, N, N ', N' hexamethyl diammonium dichloride gemini surfactant respectively reach 38.15% and 36.05%. On-site implementation cases of a new well and an old well show that the recovery rates can be respectively increased by 22.3%-47.15%.

A process for preparing a microcapillary carbon molecular sieve membrane may include extruding a polyvinylidene chloride polymer to a thickness from 10 μm to 1,000 μm to form an extruded polymeric microcapillary film, wherein the extruded polymeric microcapillary film comprises a first end, a second end, and one or more microcapillaries extending from the first end to the second end; pre-treating the extruded polymeric microcapillary film at a temperature from 100° C. to 200° C. for a time from 1 hour to 48 hours to form a pre-treated polymeric microcapillary film; and pyrolizing the pre-treated polymeric microcapillary film at a temperature from 200° C. to 1,500° C. for a time from 15 minutes to 5 hours to form the microcapillary carbon molecular sieve membrane.

A laminate carbon molecular sieve (CMS) membrane may comprise a microcapillary laminate comprising: two or more microcapillary films, each microcapillary film comprising a first lengthwise face, a second lengthwise face, a first widthwise face, and a second widthwise face; one or more widthwise spacers; and two or more lengthwise spacers, wherein: the one or more widthwise spacers and the two or more lengthwise spacers are interposed between each of the two or more microcapillary films, at least one widthwise spacer is positioned proximal to the first widthwise face of the two or more microcapillary films; at least one lengthwise spacer is positioned proximal to the first lengthwise face of the two or more microcapillary films; at least one lengthwise spacer is positioned proximal to the second lengthwise face of the two or more microcapillary films, and the two or more microcapillary films comprise a polyvinylidene chloride (PVDC) copolymer.

The present invention relates to the technical field of atomic frequency standards, and in particular to a miniaturized atomic beam clock physics system and a clock generation method. The atomic beam clock physics system comprises: an alkali metal atom emission cavity, an alkali metal raw material block, a microcapillary array, a drift cavity, a multilayer silicon substrate, a laser, a fiber-optic phase modulator, a beam splitter prism, a plurality of reflecting mirrors, and a signal detector. Compared with a conventional coherent population trapping detection method based on a vapor cell, the present invention achieves a narrower fluorescence spectrum width and higher long-term frequency stability, also has a chip‑level integration capability, and has higher competitiveness compared with existing chip-scale atomic clocks based on a vapor cell structure.

The application belongs to the technical field of optical communication, and relates to a micro capillary heat conductor, a micro high-heat-density device and a heat conductor mounting method. The heat conductor comprises a shell and a heat conduction module encapsulated in the shell. The heat conduction module comprises a first heat conduction block, a second heat conduction block, a third heat conduction block and a fourth heat conduction block. The first heat conduction block, the second heat conduction block, the third heat conduction block and the fourth heat conduction block each comprise a plurality of layers of micro circulation units, and each micro circulation unit is filled with phase change working medium. The micro circulation unit comprises a heat absorption zone, an evaporation zone and a heat dissipation zone which are sequentially communicated. The heat absorption zone is used for heat conduction with the back surface of the chip. The evaporation zone extends downward and outward from the heat absorption zone to the heat dissipation zone. The heat dissipation zone is used for dissipating heat to the back surface of the PCB circuit board. The area of the heat dissipation zone is greater than that of the heat absorption zone, and the heat dissipation zone is located outside the heat absorption zone. The beneficial effect is that the technical problem of the existing optical module which conducts heat through the PCB via hole on the back surface of the chip and has an unsatisfactory heat conduction efficiency is solved.

A laminate carbon molecular sieve (CMS) membrane may comprise a microcapillary laminate comprising: two or more microcapillary films, each microcapillary film comprising a first lengthwise face, a second lengthwise face, a first widthwise face, and a second widthwise face; one or more widthwise spacers; and two or more lengthwise spacers, wherein: the one or more widthwise spacers and the two or more lengthwise spacers are interposed between each of the two or more microcapillary films, at least one widthwise spacer is positioned proximal to the first widthwise face of the two or more microcapillary films; at least one lengthwise spacer is positioned proximal to the first lengthwise face of the two or more microcapillary films; at least one lengthwise spacer is positioned proximal to the second lengthwise face of the two or more microcapillary films, and the two or more microcapillary films comprise a polyvinylidene chloride (PVDC) copolymer.

An object of the present invention is to provide an anti-adhesive / anti-clogging and / or color marked / tinted micro-capillary tube (microtube), microneedle, or micropipette. Typically, the color / tint will be selected such that the tip of the microneedle or micropipette is in contrast (e.g., visually) to the biological material. The tint / color may be selected to contrast the stained biological material. In some aspects, the color mark comprises nanoparticles that are modified by adding a non-adhesive coating / material that minimizes protein adhesion / adsorption. The microtubes and / or micropipettes may be treated with an anti-clogging reagent and an anti-adhesive reagent to prevent or reduce clogging and adhesion of the micropipette or microneedle to biological materials. The microtubes and / or micropipettes may be formed using additive printing processes and additive manufacturing techniques or from micropipette and microneedle pullers.

The utility model discloses a clamping die for an ultra-miniature capillary tube fiber guide taper hole, which is applied to the technical field of clamping dies. A plurality of groups of outer frames are sequentially stacked on a base, so that a connecting block at the bottom of a lug plate is attached to a fixing block; after the pipe bodies are inserted into the inserting grooves, the pipe bodies are inserted into the inserting grooves, and then the pipe bodies are inserted into the inserting grooves, so that the pipe bodies can be conveniently and continuously machined, and the working efficiency is improved; and the first clamping block and the second clamping block are extruded to drive the limiting block to move towards the interior of the cavity, and the first clamping block and the second clamping block can form clamping force through resilience force of the spring to fix the pipe body.

The invention relates to the technical field of oil reservoir development, in particular to a low-porosity and low-permeability argillaceous sandstone reservoir saturation determination method and device. A logging curve of the research area is obtained, the shale content and the total porosity of the target interval are determined according to the logging curve, the clay content is determined according to the shale content, and the bound water porosity is determined according to the shale content and the total porosity; determining the clay water porosity according to the clay content; according to the bound water porosity and the clay water porosity, the microcapillary water porosity is determined; determining free water porosity according to the total porosity and bound water porosity; and determining the water saturation of the target layer according to the free water porosity, the microcapillary water porosity, the clay water porosity and the resistivity logging curve. The problem that the saturation precision of the obtained low-porosity and low-permeability argillaceous sandstone reservoir is low due to the fact that the relation between the rock resistivity increase index and the water saturation cannot be explained in the prior art is solved.

The utility model discloses a kind of optical fiber LMR pressure sensors, comprising: metal shell, its shell top is open, which is covered with metal diaphragm, the bottom end surface center of metal diaphragm is fixed with force transmission metal stick, the lower end of force transmission metal stick is deposited with fluoride layer, fluoride layer is deposited with gallium-doped zinc oxide film layer;Single-mode optical fiber, it is located in metal shell, the cladding of single-mode optical fiber removes middle section to expose the fiber core of middle section;Side surface opening microcapillary, it is cladded on the cladding of single-mode optical fiber both ends, microcapillary is filled with matching liquid with same refractive index and will be immersed with cladding, matching liquid can be as the liquid cladding of bare core;Gallium-doped zinc oxide film layer is located above liquid cladding, the space range between gallium-doped zinc oxide film layer and bare core is called transition layer. The sensor can avoid the influence of stress transmission on optical fiber, both have relatively wide sensing range, and also can ensure higher sensitivity.

The invention provides a brass / stainless steel circumferential weld laser welding-brazing method, a composite roll shaft and application. The method comprises the following steps that a brass roller to be welded and stainless steel journal base metal are cleaned; the brass roller is subjected to surface treatment, and a micro capillary channel is prepared; the brass roller and the stainless steel journal workpiece are sequentially placed into a welding tool to be positioned and clamped; and welding is started, a copper-nickel-manganese-silicon quaternary solid welding wire is used as filling metal, and laser melt-brazing welding is conducted on the brass / stainless steel circumferential weld. According to the brass / stainless steel circumferential weld laser melt-brazing method, the composite roll shaft and the application, continuous distribution of intermetallic compounds on a brass / stainless steel interface is eliminated, the porosity in a connector is reduced, and high-strength laser melt-brazing connection of brass / stainless steel heterogeneous materials is achieved; the prepared composite roll shaft is far better than a stainless steel roll shaft in thermal conductivity and temperature control performance, is applied to preparation of a wide-width roller, and realizes high-quality manufacturing of ultrathin wide-width materials.

In one aspect, a radiation detector is disclosed, which includes a substrate having a plurality of microcapillary channels, and a crystalline scintillator material disposed in said channels so as to generate a plurality of independent radiation sensing elements associated with each channel for detecting incident radiation and generating an optical radiation in response to the detection of the incident radiation. In some embodiments, the incident radiation can include any of alpha (α), beta (β), gamma (γ), X-ray and neutrons.

The application relates to the technical field of industrial production, in particular to a drawing die for micro capillary forming, which comprises two fixed dies, a drawing die arranged between the two fixed dies, and a blocking device. The blocking device is arranged at one end of the fixed die on one side and is used for drawing the micro capillary in an oxygen-isolated environment. When the micro capillary enters the guide pipe on one side, the micro capillary is heated by using preheated nitrogen during the conveying and drawing processes, so as to reduce the difficulty of drawing the micro capillary by the drawing machine through the drawing die. Compared with the preheating mode of the existing heating lamp, the nitrogen filled in the closed chamber can heat the micro capillary in all directions, so that the micro capillary is heated more uniformly.

A gas delivery conduit configured to deliver gas to a device comprises an input end maintained at a first potential into which a gas is delivered from a source under a regulated pressure, a pressure regulator coupled to the input end for delivering a regulated flow of gas to the conduit, and an output end maintained at a second potential through which the gas is delivered to the device, with a direction of gas flow moving through the conduit from the input end to the output end. The potential difference between the first potential and second potential forms an electric field. A first plurality of electrically nonconductive conduit windings is disposed between the input end and output end and arranged such that the electric field running between the input end and output end runs substantially perpendicularly across the plurality of conduit windings and the direction of gas flow through the conduit.

A method of manufacturing a laminate carbon molecular sieve (CMS) membrane may comprise forming a polyvinylidene chloride copolymer into two or more microcapillary films; arranging the two or more microcapillary films into a microcapillary laminate comprising two or more widthwise spacers interposed between each of the two or more microcapillary films; pretreating the two or more microcapillary films by heating at a first temperature of from 120 ℃ to 200 ℃; pyrolyzing the two or more microcapillary films at a second temperature of from 600 ℃ to 700 ℃, wherein the arranging step occurs before or after the pyrolyzing step; annealing the microcapillary laminate at a third temperature of from 900 ℃ to 1700 ℃ with inert gas or under vacuum; and either oxidizing the microcapillary laminate with air or carbon dioxide to form the CMS membrane.

The present disclosure relates to an apparatus for microalgae and / or cyanobacteria cell culture comprising a unitary body formed from a hydrophobic material; and two or more microcapillary channels extending along the unitary body; wherein the inner surface of the microcapillary channels is coated with nutrients suitable for microalgae and / or cyanobacteria cell culture; and wherein the hydrophobic material is transparent to visible light, and to a kit and sensor thereof. A method for culturing microalgae and / or cyanobacteria in an apparatus comprising a unitary body formed from a hydrophobic material and two or more microcapillary channels extending along the unitary body, wherein the hydrophobic material is transparent to visible light is also disclosed.