170results about How to "Improve transformation efficiency" patented technology

Medical devices and related methods for making and using same suitable for treating or inhibiting restenosis are proved. Specifically, compositions and methods for I kappa B alpha (IkBα)nuclear factor kβ (NFkβ) complex breakdown inhibition are provided. One embodiment includes a CRM-1 protein binding composition such as leptomycin B. Another embodiment includes a combination of a CRM-1 protein binding composition and a nucleic acid encoding for mammalian IkBα. Medical devices disclosed include catheters and vascular stents.

In a method for manufacturing a quartz crystal unit, a quartz crystal tuning fork resonator is formed by etching a quartz crystal wafer to form a quartz crystal tuning fork base, quartz crystal tuning fork tines connected to the quartz crystal tuning fork base, and a groove having stepped portions in at least one of opposite main surfaces of each of the quartz crystal tuning fork tines. A first electrode is disposed on at least one of the stepped portions of each of the grooves and a second electrode is disposed on each of side surfaces of each of the quartz crystal tuning fork tines. A frequency of oscillation of the quartz crystal tuning fork resonator is adjusted at least twice and in different steps. The quartz crystal tuning fork resonator is then mounted in a case and an open end of the case is covered with a lid.

An electronic apparatus comprises a display portion and a plurality of oscillators, one of which is a quartz crystal oscillator comprising: a quartz crystal oscillating circuit comprising; an amplification circuit and a feedback circuit. For example, the feedback circuit is constructed by a quartz crystal resonator comprising vibrational arms and a base portion, and having novel shape and electrode construction. Also, the quartz crystal resonator is housed in a package. In addition, from a relationship of an amplification rate of the amplification circuit and a feedback rate of the feedback circuit, an output signal of the quartz crystal oscillating circuit having an oscillation frequency of a fundamental mode of vibration for the quartz crystal resonator can be provided with a frequency of high stability.

The invention discloses a jaw crusher with a single-shaft double-crank-rocker mechanism. The jaw crusher comprises a frame, a fixed jaw plate, a movable jaw plate, a front crank-rocker mechanism, a rear crank-rocker mechanism and a driving wheel, wherein, the front crank-rocker mechanism comprises a front movable jaw, a front toggle plate and an eccentric drive shaft; the rear crank-rocker mechanism comprises a rear movable jaw, a rear toggle plate and an eccentric drive shaft; the front movable jaw and the rear movable jaw are jointly pivoted with the eccentric drive shaft; one end of the front toggle plate is pivoted below the rear side of the front movable jaw, the other end of the front toggle plate is pivoted below the front side of the rear movable jaw, one end of the rear toggle plate is pivoted below the rear side of the rear movable jaw, and the other end of the rear toggle plate is pivoted with the frame; and the movable jaw plate is fixedly connected with the front movable jaw and is opposite to the fixed jaw plate to form a crushing cavity together with the fixed jaw plate. The jaw crusher has the obvious effect that horizontal movement stroke of the lower parts of the movable jaws with the main function of discharging materials is improved to a stroke with a main function of crushing so that one crusher has two-stage crushing efficacy.

A quartz crystal unit comprising a case having an interior space and a mounting portion in the interior space, and a quartz crystal resonator having a base portion and first and second vibrational arms, the quartz crystal resonator being vibratable in a flexural mode, a capacitance ratio r₁ of a fundamental mode of vibration of the quartz crystal resonator being less than a capacitance ratio r₂ of a second overtone mode of vibration thereof, a mounting arm protruding from the base portion and extending in a common direction with at least one of the first and second vibrational arms, the mounting arm being mounted on the mounting portion of the case, an electrode being disposed on a surface of the mounting arm and a surface in the interior space of the case, the electrode disposed on the surface of the mounting arm being connected to the electrode disposed on the surface in the interior space of the case.

The invention provides a temporary blocking material assisted dragged hydraulic jet reconstruction method for a horizontal well. The method comprises the steps of a, carrying out positive swabbing kick-well-off by using a fracturing fluid; b, carrying out positive swabbing kick-well-off by using a sand-carrying fracturing fluid or a sand-carrying acid fluid; c, carrying out positive swabbing kick-well-off by using a fracturing fluid or an acid fluid; d, turning off a gate of a casing pipe; e, injecting the fracturing fluid from an oil pipe to the stratum, and meanwhile injecting clear water into the casing pipe; f, injecting the fracturing fluid or the acid fluid from the oil pipe to the stratum, and injecting clear water into the casing pipe; g, injecting a carrying fluid containing a temporary blocking material to the stratum, and injecting clear way to the casing pipe after a crack is closed; h, injecting the fracturing fluid to the stratum; and i, when further reconstruction is required, dragging the oil pipe to jet, and repeating the operations from the step a to the step h to finish the reconstruction of the horizontal well. According to the method, the formed crack is blocked temporarily by using the temporary blocking material to ensure that the fluid is converged in the current well section, so that the fluid reconstruction efficiency is increased.

The invention provides a method for adding CO2 and O2 in-ground leaching in heavy carbonic acid type ground water and leachate, which comprises the following steps: (1) adding CO2 and O2 into the leaching solution to leach uranium underground to obtain uranium leachate; (2) adding uranium to the uranium Add CO2 to the leaching solution to adjust the pH value of the uranium leaching solution, and then filter it mechanically; (3) perform ion exchange adsorption on the uranium leaching solution in the adsorption tower; (4) perform leaching on the saturated resin to obtain Cl-type poor resin and leaching qualified solution (5) transforming the Cl-type poor resin with the adsorption tail liquid; (6) acidifying the eluting qualified liquid, adding alkali and aging precipitation at room temperature, washing, filtering and drying the precipitated slurry to obtain uranium products. The method of the invention only adds O2 and CO2 without adding other reagents, which will not cause blockage of ore beds and pollution of underground water; at the same time, the preparation process is integrated, the operation is simplified, and the cost is saved.

In a unit comprising a quartz crystal resonator, a case having a mounting portion, and a lid connected to the case, the quartz crystal resonator having a base portion, and first and second vibrational arms connected to the base portion, at least one groove being formed in at least one of opposite main surfaces of each of the first and second vibrational arms, at least one mounting arm being connected to the base portion having a length L₁ less than 0.5 mm and extending in a common direction with at least one of the first and second vibrational arms, the at least one mounting arm being mounted on the mounting portion of the case.

A unit comprising a quartz crystal resonator vibratable in a flexural mode and having a base portion including a length less than 0.5 mm, and first and second vibrational arms connected to the base portion, at least one groove being formed in each of two of opposite main surfaces of each of the first and second vibrational arms, and an electrode being disposed on a surface of the at least one groove formed in each of the two of the opposite main surfaces of each of the first and second vibrational arms so that the electrode disposed on the surface of the at least one groove formed in each of the two of the opposite main surfaces of the first vibrational arm has an electrical polarity opposite to an electrical polarity of the electrode disposed on the surface of the at least one groove formed in each of the two of the opposite main surfaces of the second vibrational arm.

The invention discloses a low-cost commissioning method for an existing large-scale public building air conditioner system, which is mainly used for commissioning of a ground source heat pumping unit.The low-cost commissioning method comprises the following steps of step (1), constructing an air conditioner set failure diagnosing model; step (2), constructing an air conditioner system load estimating model; and step (3), constructing an air conditioner system optimization model. The invention mainly aims to complete preliminary accommodation of a building air conditioner system in a short time through information as little as possible. According to the method, three models are respectively used for three stages of diagnosis, load pre-estimating and optimization target calculation on a thebuilding air conditioner system.

The present invention provides a method for Agrobacterium-mediated gene introduction into a plant material, comprising: 1) treating the plant material, and then

• 2) infecting the plant material with an Agrobacterium, characterized in that a medium enriched in a metal salt containing copper ion is used in step 1) and/or 2). The present invention also provides a process for preparing a transformed plant characterized in that the gene introduction method of the present invention is used.

The embodiment of the invention discloses a design method for coal reservoir transformation, and belongs to the field of coalbed methane exploration. The design method comprises the following steps: acquiring the thickness, the effective porosity, the phase change transformation radius and the phase change transformation temperature of a coal reservoir, acquiring a shaft heat loss efficiency of an injection well, confirming a phase change fluid amount and a partitioning fluid amount according to the phase change transformation radius and the effective porosity of the coal reservoir, confirming an injection delivery capacity and the highest pressure of the opening of the injection well when fluid is injected into the coal reservoir according to fracture pressure of the coal reservoir, confirming a cold amount for phase change transformation coal reservoir according to the phase change fluid amount, the specific heat capacity of a pore medium in the coal reservoir, and the density and the phase change transformation temperature of the pore medium in the coal reservoir, confirming a refrigerant amount and a cold source amount according to the shaft heat loss efficiency, the specific heat capacity of a refrigerant liquid and the temperature of the refrigerant liquid after heat exchange with the ground, and transforming the coal reservoir according to phase change of the phase change fluid. By adoption of the design method, the coal reservoir transformation efficiency can be improved.

The present invention relates to a method of introducing gene into plant material via Agrobacterium. A method of the present invention is characterized in that it comprises: 1) pressurizing a plant material, and then 2) infecting the plant material with an Agrobacterium.

The invention relates to a system for cutting and connecting circuit, which comprises user terminal, network unit, and a network manager work station. Wherein, it based on the circuit cutting-connecting request of user terminal calculates and preforms the circuit route and builds the preformed circuit; based on the preformed circuit and route, generates the service processed at cutting and connecting circuit, and sending the service to the network unit. The invention also disclose a relative method which comprises: based on the circuit cutting-connecting request of user terminal calculates and preforms the circuit route and builds the preformed circuit; based on the preformed circuit and route, generates the service processed at cutting and connecting circuit, and sends the service to the network unit, then cuts and connects the circuit at the network unit. With said invention, user can change present network at network manager work station, to redistribute the network resource, to improve the efficiency.

The embodiment of the invention discloses a digitalized transformation method for a transformer substation. The digitalized transformation method comprises an original bus protection device upgrade step, a total-interval sub-machine analog quantity and IO quantity conversion step, a total-interval sub-machine data transmission step, a step of converting GOOSE receiving quantity into IO quantity, a duty-cycling control interval transformation step and a total-interval sub-machine exit step; after an entire station SCD file is configured, the SCD file is subjected to privatization configuration and then is unloaded into a total-interval sub-machine; associated configuration information of all untransformed intervals required for a digitalized bus difference is modified to be completely transmitted by the total-interval sub-machine; meanwhile, a virtual terminal of requiring conventional tripping operation in digitalized bus difference GOOSE tripping information is associated into the total-interval sub-machine for opening; and a fiber connecting line only needs to be modified to be connected to an intelligent terminal and a merging unit (MU) corresponding to the terminal by the total-interval sub-machine when each interval is transformed each time, so that seamless switching of the total-interval sub-machine is achieved; and the digitalized transformation method has the technical effects of small boundedness, high operability, safety, reliability, simplicity in construction and high transformation efficiency.

A method is disclosed for producing a transgenic cotton plant by Agrobacterium-mediated transformation of petiole tissue. The method comprises the steps of (a) obtaining cotton petiole explants, (b) exposing the petiole explants to a culture of Agrobacterium tumefaciens that harbors a vector comprising an exogenous gene and a selectable marker, the Agrobacterium being capable of effecting the stable transfer of the exogenous gene and selection agent resistance gene to the genome of the cells of the petiole explant, (c) culturing the petiole explants to induce callus formation, (d) selecting transformed callus that expresses the exogenous gene, (e) culturing the selected callus in suspension culture to induce formation of embryoids, (f) regenerating the embryoids into whole transgenic cotton plants.

The invention provides a pre-treating method for improving the SAGD development effect. The pre-treating method comprises the following steps that two horizontal wells are arranged at the bottom of an oil layer of an oil reservoir; supercritical CO2 is injected into the oil layer for the first round at the operation pressure lower than bursting pressure through the two horizontal wells, soaking is conducted, when the pressure is reduced to be 0.5-1 MPa, the supercritical CO2 is injected into the oil layer for the second round at the operation pressure higher than bursting pressure, and soaking is continuously conducted; stem cycle preheating is conducted through the two horizontal wells; and after preheating is completed, continuous steam injection production is conducted on the horizontal wells. The oil reservoir is pretreated through the supercritical CO2; by greatly reducing the viscosity of crude oil, the seam demand quantity in the SAGD operation process is reduced; the cycle preheating time is shortened, the displacement efficiency of steam zones is improved, and a heavy oil reservoir can be economically and effectively exploited.

The invention discloses a remote electronic visiting system of mobile communication. The system comprises a prisoner visit approval control platform, and a prisoner management server, prison visual terminals, a prison-police mobile terminal and a family member terminal connected to the prisoner visit approval control platform, wherein the family member terminal sends a prisoner visit request to the prisoner visit approval control platform, receives prisoner visit agreement or rejection information from the prisoner visit approval control platform, and receives a visual request signal transmitted by the prisoner visit approval control platform. According to the system of the invention, the efficiency is high, fewer prisoner visiting rooms are needed, and the convenience and safety of prisoner visiting are improved.

A single-stage AC/DC converter is provided, and which includes a power-frequency follow-current circuit, an isolated transmission circuit (ITC), a high-frequency chopper modulation circuit (HFCMC), a power-frequency and high-frequency AC rectifying-circuit and a filter-circuit. The input of the ITC is connected to the output of an external power-frequency power source, the current-modulating side of the ITC is connected to the input of the HFCMC, the output of the ITC is connected to the input of the power-frequency and high-frequency AC rectifying-circuit, the output of the HFCMC is connected to the input of the external power-frequency power source through the power-frequency follow-current connected in series with the HFCMC , and the output of the power-frequency and high-frequency AC rectifying circuit is connected to a load through the filter circuit connected in series with the power-frequency and high-frequency AC rectifying-circuit. The invention simplifies the rectifier part with higher transformation efficiency.