31results about How to "Achieve multifunctional integration" patented technology

The embodiment of the invention discloses a graphene gas sensor and a preparation method thereof. The preparation method comprises the following steps: sequentially deposing a sacrificial layer and a strain membrane on a substrate firstly, then directly preparing a graphene layer on the strain membrane, or transferring the prepared graphene layer onto the strain membrane, forming a mesa by virtue of lithography and corrosion, and meanwhile, exposing the sacrificial layer; then continuously deposing a metal electrode on the graphene layer; and finally, laterally corroding the sacrificial layer to enable the strain membrane to separate from the substrate and self curling to form a tube, and obtaining the curled graphene gas sensor which is adhered to the inner wall of the tube. The graphene gas sensor has high sensitivity to various gas molecules, has a three-dimensional structure, is small in device size, simple in preparation method and low in cost and is suitable for mass production. In addition, according to the graphene gas sensor disclosed by the embodiment of the invention, with the tubular structure with controllable diameter, a natural conveying channel for a gas to be detected is provided, and the tubular structure can also be integrated with other on-chip micro-nano function units to construct a chip laboratory.

The invention discloses a preparation method for anti-dielectric substrate delamination of a multi-layer FSS radome. Before the radome is laminated, the polyimide frequency selective surface is plasma activated and the cyanate resin is sprayed for viscosity-increasing treatment; Quantitatively describe the influence of curing process parameters on the internal stress, establish the relationship model between the internal stress of the multilayer frequency selective surface stealth radome and the curing process parameters, and then make the polyimide frequency selective surface into prepreg; select according to the multilayer frequency The circuit design of the surface stealth radome requires the frequency selective surface and the layup sequence design of the composite material dielectric layer, and the layup is carried out according to the layup sequence; after the layup is completed, the autoclave is formed and cured. The invention makes up for the defect that air bubbles are easily trapped when the polyimide frequency selective surface and the dielectric layer prepreg are laminated in the traditional method, and solves the problem that the air bubbles cannot be excluded due to the barrier of the frequency selective surface when the dielectric layer is formed, and separation will occur. layer problem.

The invention belongs to the technical field of microfluidic spinning, relating to an integrated microfluidic spinning chip and a method for preparing regenerated silk fibroin by using the same. The integrated microfluidic spinning chip is of a three-layer structure, wherein the upper layer and the lower layer are provided with polydimethylsiloxane membranes of grooves, and the grooves are adhered with a middle dialysis membrane to form an upper microfluidic channel and a lower microfluidic channel. The depths of the two microfluidic channels are the same, and the widths gradually become small. The method for preparing the regenerated silk fibroin disclosed by the invention comprises the following steps: injecting spinning liquid in the upper channel and the lower channel at room temperature; injecting the mixed liquid of water-absorbent resin and ion adjusting liquid in the lower channel; and after the spinning liquid is adjusted via ions, cut, stretched and concentrated, extruding from an outlet, then solidifying in air as threads, and then winding the threads on rolls. The microfluidic chip disclosed by the invention can be used for simulating complex flow fields during the biological spinning process, and realizing the operations of the spanning liquid, such as cutting, stretching, component adjusting and concentrating. Compared with the spinning technology using a dry method, the method disclosed by the invention can be used for preparing good regenerated silk fibroin.

The invention discloses a device and method for collecting and storing microorganisms in frozen soil. The cantilever is released, the cantilever moves downward under weight, the drilling assembly drills the well and breaks the soil vertically, and the frozen soil isolation assembly and the drilling assembly move down synchronously to break the drilling assembly. Frozen soil isolation prevents cross-contamination; the drilling assembly moves down to the deepest position and stops rotating, connects the frozen soil isolation assembly with the power assembly of the drilling assembly, uses the rotating crankshaft of the drilling assembly to drive the rotation of the frozen soil isolation assembly, and uses the power assembly to drive the frozen soil isolation assembly The frozen soil storage point on the frozen soil is opened; the power assembly of the drilling assembly is stopped from rotating, and during the inertial rotation of the frozen soil isolation assembly, the power assembly drives the frozen soil storage point on the frozen soil isolation assembly to close; the cantilever is lifted to drive the drilling assembly and The frozen soil isolation components move up synchronously to complete the collection and induction of frozen soil; the invention realizes the collection and storage of frozen soil and its internal microorganisms during the drilling and crushing of frozen soil, improves efficiency and avoids cross-contamination of frozen soil microorganisms.

The present application relates to a germanium-silicon avalanche photodetector and its manufacturing method. The germanium-silicon avalanche photodetector includes a buried oxide layer, a bottom layer, an intrinsic germanium layer, a cover layer, a P electrode and an N electrode, and the bottom layer includes an intrinsic bottom silicon layer in turn. region, the transitional underlying silicon region, the multiplication region, and the N-type heavily doped underlying silicon region; the intrinsic germanium layer is set on the underlying layer; the covering layer covers the intrinsic germanium layer, and the covering layer includes the P-type heavily doped covering layer silicon region in turn , the silicon region of the intrinsic covering layer, the silicon region of the transition covering layer, the end of the silicon region of the transition covering layer away from the silicon region of the intrinsic covering layer is in contact with the silicon region of the transition bottom layer to form a charge transition region; the P electrode and the P-type heavily doped covering layer The silicon region is connected; the N electrode is connected to the N-type heavily doped underlying silicon region. The germanium-silicon avalanche photodetector of the present application does not use a stacked structure, which is convenient for integration with other functional components and can be mass-produced.

The invention discloses an automatic soil sample collection device used for soil testing and formulated variable fertilization, relates to an automatic soil sample collection device, and solves the time and labor consuming problems of soil sample collection in the process of soil testing and formulated fertilization in the prior art. The automatic soil sample collection device adopts an automatic soil taking manner of the principle of dynamics, power required for soil sampling can be provided only by cooperation of up-and-down motion of a subsoiler in a deep scarification process and forward movement of an agricultural machine without additional installation of a power device, and the automatic soil sample collection device is easy to operate and realize. A sample box can be moved by controlling of an electromagnet, so that separation and preservation of soil at different locations can be realized, and respective sampling and respective preservation of a plurality of samples can be realized. By use of GPS positioning information, longitude and latitude coordinates of each sampling point can be recorded, and each sample soil can be accurately located. The automatic soil sample collection device is suitable for automatic soil sample collection occasions of soil testing and formulated variable fertilization.

An anti-blue light coating liquid, an anti-blue light coating optical material and a preparation method thereof, the coating liquid is composed of polythiourethane monomer, polyurethane / light absorber / titanium oxide nanocomposite microspheres, and isocyanate curing agent and diluent composition. Among them, the nano-composite microsphere has a three-layer composite core-shell structure, the inner core is titanium oxide nano-microspheres, the middle layer is a light absorber, and the outer shell is polyurethane. The coating liquid is coated on the optical material as an anti-blue light optical material, and its blocking spectrum extends from the ultraviolet spectral region to the blue light spectral region. While maintaining a high transmittance, it has the ability to distinguish and absorb blue light in different bands , wherein the 280-380nm ultraviolet transmittance is less than 1%, the 400-440nm short-wave blue light transmittance is less than 5%, and the 460-500nm blue light transmittance exceeds 50%.

A method for realizing multi-service customization on a router, in which different services are customized on the router according to user requirements, and a method for realizing the DIY service of the router. It includes the following steps: 1), hardware configuration; 2), server board management; 3), message forwarding. The present invention provides a hardware platform capable of loading third-party software, and traffic can flow from a router to the hardware platform, and then return to the router after being processed by software on the hardware platform or be directly forwarded to the destination end.

The invention discloses a lathe-type adjustable simple tool system, the tool system utilizes great changeover amount of the change level of the diameter of an inscribed circle on an indexable blade with 3mm and different shape, great adjustment amplitude of the geometric angle of the blade and a cutting edge, self-locking property of a tool bit, strong reliability for self-protection, simple index, changeover and re-grinding of the blade, reliable positioning and high connection rigidness of the tool bit and a square holding sleeve by a tool rod, thus facilitating the adjustment of front and back angles; and the lathe-type adjustable simple tool system has broader range of application.

The invention relates to a one-dimensional nanoparticle polymer chain and a preparation method thereof. A five-step method is adopted to prepare a one-dimensional nanoparticle polymer chain containing alternating structural units shown in formula I, wherein A and B are functional nanoparticles, One of the nanoparticles of silicon dioxide, titanium dioxide, ferric oxide, zinc oxide, aluminum oxide, magnesium oxide, aluminum nitride, silicon nitride, and boron nitride; The distribution of polymer chain length is uniform and controllable, so that the spacing between nanoparticles is controllable, and at the same time, two different nanoparticles can be alternately arranged on the chain.

The invention discloses an ultrahigh pressure rotating sealed water jet cleaner. The ultrahigh pressure rotating sealed water jet cleaner is characterized by comprising a driving mechanism, a rotary sealing mechanism, a water inlet connecting member, a spray head mechanism, an upper casing and a lower casing, wherein the upper casing and the lower casing are fixedly connected; the rotary sealing mechanism comprises a water inlet pipe connector, a sealing outer casing, a sealing inner channel, a supporting shaft sleeve, a sealing medium channel and a driven gear. According to the ultrahigh pressure rotating sealed water jet cleaner disclosed by the invention, rotary dynamic sealing of ultrahigh water jet flow is realized by combined seal of end face seal and clearance seal; the seal between an ultrahigh pressure static part and a rotating part can be effectively realized; the utilization rate of high-pressure water is improved; the effect of removing rust by water jet is improved.

An anti-blue light / color-changing dual-function coating optical material and a preparation method thereof, the dual-function coating optical material includes an optical substrate, an anti-blue light coating and a photochromic coating. The anti-blue light coating is doped with polyurethane / light absorber / titanium oxide nanocomposite microspheres, which has a three-layer composite core-shell structure, the core is titanium oxide nanospheres, the middle layer is light absorber, and the outer shell is polyurethane. The anti-blue light coating has a blocking spectral range extending from the ultraviolet spectral region to the blue light spectral region, and has the performance of distinguishing absorption of blue light in different bands while maintaining a high transmittance. The anti-blue light coating is matched and functionally integrated with the photochromic coating material, which can automatically adjust the transmittance according to the intensity of the light. By selectively passing the beneficial light and cutting off the harmful light, the brightness can be controlled and the light can be transmitted on demand.

The invention discloses a metal sheet material feeding device in intelligent manufacturing of compressor shells, which comprises a base, an electric control box is fixedly connected to the top of the base, a collection and transfer box is fixedly connected to the top of the base, and the motor The left side of the sliding chassis is fixedly connected with a drill bit, the back of the top of the sliding chassis is fixedly connected with a first driving mechanism, the left side of the opposite side of the electric control box is fixedly connected with a fixed cushion block, and the middle part of the fixed cushion block is provided with a penetrating groove, the outside of the slider is fixedly connected with a second drive mechanism, the inner cavity of the second drive mechanism is fixedly connected with a lifting rod, and the bottom of the lifting rod is fixedly connected with an azimuth adjustment rod, and the inner cavity of the groove The cavity is fixedly connected with a horizontal shaft, the outer ring of the cross bar is fitted with a swing module, the top of the swing module is fixedly connected with an embedded block, the bottom of the swing module is provided with a mechanical palm, and the bottom of the mechanical palm is fixedly connected There are vacuum suction cups.