72results about How to "Avoid preparation" patented technology

The invention relates to a quantitative detection device based on fibrous-membrane gathering and separation and a detection method thereof. The quantitative detection device comprises a separation testing cup, a reaction cup, an analysis buffer solution and a cleaning solution; wherein the separation testing cup comprises a receiving tank, a water absorption cup and millipore filters between them. A capture agent and a labeling agent are solidified on the bottom of the reaction cup and the capture agent is fixed on the surface of latex beads. The detection method comprises: conjugation reaction, separation, cleaning and detection. In the invention, not only the characteristics of convenient operation and rapid detection of immune infiltration (IF) and immunochromatography (IC) are maintained, but also precision and sensitivity of the detection are obviously better than that of IF and IC. Therefore, quantitative immunodetection and nucleic acid hybridization analysis can be implemented effectively. The invention can be used for the quantitative detection of substances such as protein, nucleic acid, small molecule and microbe.

The invention discloses a method for simultaneously removing sulfur, niter and mercury from smoke based on catalytic oxidation. The method is characterized by comprising the following steps of: (1) arranging a catalytic reactor in a dust-removed smoke duct, wherein a catalyst for promoting oxidizing reaction of NO and HgO is filled in the catalytic reactor; (2) allowing the dust-removed smoke to pass through the catalytic reactor, wherein under catalysis of the catalyst, the reaction speed of the NO, the HgO and O2 is increased and the NO and the HgO are oxidized into NO2 and Hg<2+>; and (3) introducing the smoke subjected to catalytic oxidation into an absorber with an absorption solution, wherein the absorption solution is used for absorbing NO2, Hg<2+> and SO2 from the smoke. The invention also discloses a system applicable to the method. According to the method and the system, the sulfur, the niter and the mercury are removed from the smoke; external oxidant is not required to be added; preparation, transportation and storage of strong oxidant are avoided; operating cost is reduced; and economy and safety of the system are improved.

Various embodiments disclosed relate to methods of treating subterranean formations, and compositions, systems and methods for performing the methods. In some embodiments, the present invention provides a method of treating a subterranean formation, including obtaining or providing a composition that includes an alkenoate ester. The composition also includes at least one of a dialkenyldihydrocarbylammonium halide and an N,Ndihydrocarbyl-substituted alkenamide. The method also includes placing the composition in a subterranean formation downhole. Various embodiments provide methods of treating a subterranean formation using a composition including a polymer that is a reaction product of a mixture including an alkenoate ester and at least one of a dialkenyldihydrocarbylammonium halide and an N,N-dihydrocarbyl-substituted alkenamide.

The invention relates to a floating point addition device based on complement rounding, which supports the floating point addition operation and the floating point subtraction operation. The floatingpoint addition device comprises an exponent adder, a mantissa shifter, a mantissa operand preparation logic unit, a mantissa adder, a rounding judgment logic unit and a rounding adder, wherein the mantissa operand preparation logic unit is used for processing the mantissa operand according to sign bits and the exponent difference of the first floating point operand and the second floating point operand, the rounding judgment logic unit is used for executing the uniform rounding judgment on a mantissa addition result, judging the positive and the negative of the mantissa sum according to the highest bit output by the mantissa adder, determining a constant bit for the rounding judgment according to the highest four bits output by the mantissa adder, and unifying original code rounding plus 1judgment logic and complement rounding plus 0 judgment logic; and the rounding adder is used for rounding the mantissa addition result of the floating point and finishing the code extraction and complement operation to the mantissa sum. The invention has the uniform mechanism, avoids the special complex mantissa operand preparation and rounding judgment logic of the floating point addition, and reduces the logic complexity.

The invention provides a method for detecting a biochemical oxygen demand. The method comprises the following steps of performing microculture on a microbe containing water sample from active sludge, surface water, domestic sewage or microbe containing industrial waste water, thus obtaining a microbial film; enabling a blank water sample and a target water sample to pass through the microbial film respectively, detecting and obtaining dissolved oxygen reduction current of the blank water sample and the target water sample, thus obtaining a dissolved oxygen reduction current difference value between the target water sample and the blank water sample; and obtaining the biochemical oxygen demand of the target water sample according to the dissolved oxygen reduction current difference value and a preset standard curve. According to the method, since the microbial film obtained by culturing the microbe containing water sample from active sludge, surface water, domestic sewage or microbe containing industrial waste water has high environment adaptation capacity, a buffer solution system is not required and the physiological activity can be maintained by taking one or more then one of running water, well water, dropping water and underground water as a medium.

The present invention relates to resin compositions for treatment of a subterranean formation. In various embodiments, the present invention provides a method of treating a subterranean formation. The method can include obtaining or providing a resin composition that includes a hardenable composition including a hardenable resin. The resin composition also can include a hardening composition including a water control hardening agent. The method can include contacting a subterranean material downhole with the resin composition, and reacting the hardenable composition and the hardening composition, to give a hardened resin composition. In some embodiments, the resin composition provides both particulate consolidation and water control.

The invention discloses an experimental method for animal model depression degree evaluation based on metabonomics. The experimental method comprises the following steps: comprehensively and accurately determining endogenous small molecule metabolites in a biological sample by utilizing a metabonomics platform based on high-resolution mass spectrum, screening different metabolites among different samples and different groups according to the obtained metabolic spectrum data by combining a single-variable multi-variable statistical method, utilizing a common different metabolite among three samples, comparing correlation of compounds in a blood plasma sample and a brain tissue sample, and taking a comparison result as a basis of reflecting change of metabolome in brain tissues by utilizing a blood plasma marker; meanwhile, taking a model group and a control group as a training set to construct a model and an administration group as predication capability of a validation set test model, which is an index for evaluating the depression degree by utilizing the change of the blood plasma metabolome. The experimental method disclosed by the invention can be used for solving the problems that the traditional behavioral experiment has many uncontrollable factors, preparation is relatively complex and animal subjectivity is stronger.

The invention discloses a regeneration method of an SCR denitration catalyst. The regeneration method includes: (1), performing ash blowing, cleaning and drying on the SCR denitration catalyst which is waste and deactivated; (2), smashing the waste SCR denitration catalyst which is dried well, adding a strong base solution of 10 wt%-40 wt% in mass concentration, and reacting for 3-8 h at temperature of 150-200 DEG C; (3), adjusting pH value of reaction liquid in the step (2) to 9-10, filtering and separating to obtain recovery liquid containing sodium tungstate and sodium vanadate, and adjusting concentration of vanadium in regeneration liquid to 2-10 g/L; (4), soaking the deactivated SCR denitration catalyst dried well in the step (1) in the regeneration liquid with concentration fixed well in the step (3) at room temperature for regeneration, and taking out before placing for 60 min at room temperature; (5), drying, roasting and cooling a catalyst in the step (4) to obtain a regenerated SCR denitration catalyst. The regeneration method has the advantages of good regeneration effect, low SO2/SO3 conversion rate and low regeneration cost.

Buffers of YMCK colors have memory capacities for storing image data corresponding to a difference between timings at which YMCK images formed on YMCK photosensitive drums are transferred onto a transfer member and control is effected such that paper is fed only when all image data sets to be printed are stored in the respective YMCK buffers.

The invention discloses a making method of tin disodium citrate, which comprises the following steps: making ditin citrate sediment in the water dielectric; reacting ditin citrate and citrate in the alcohol to form tin citrate; reacting with sodium hydroxide to form the sediment of tin disodium citrate; filtering; drying to obtain loose white powder of tin disodium citrate or the composition of tritin citrate and trisodium citrate; dissolving the composition to obtain the disodium citrate.

The invention relates to the technical field of tissue engineering and medical wound repairing, in particular to an amnion innate stem cell carried frozen active amnion particle and a conditioned medium and application thereof. Discarded fresh amnions are prepared into particles and then frozen into liquid nitrogen by means of serum-free stem cell freezing liquid; thus, complete matrix components of amnion are maintained while amnion epithelial cell activity is maintained for a long time, and further, disease transmission is avoided effectively. The conditioned medium which is prepared and collected by means of the frozen active amnion particles can promote chemotaxis and migration of human epidermal cells, fibroblast and endothelial cells effectively. In terms of zoografting, wound healing can be improved by multiple ways of regulating inflammatory reaction, promoting vascularization, quickening epithelization and the like through the active amnion particles; further, the amnion matrix can be directly used as a dermis equivalent to induce dermal regeneration so as to improve wound healing quality remarkably. The amnion innate stem cell carried frozen active amnion particle and the conditioned medium thereof can provide simple but effective ways for wound repairing.

The invention discloses a supporting device for civil bridge construction, and relates to the technical field of civil construction. The supporting device includes a column pile, a retaining plate, amain diagonal brace and an auxiliary diagonal brace. The retaining plate is fixedly installed on one side of the column pile, the main diagonal brace is installed on the other side of the column pile,the auxiliary diagonal brace is rotatably installed at the bottom end of the main diagonal brace, and the tail end of the auxiliary diagonal brace and the bottom end of the main diagonal brace are both equipped with collars. When the supporting device is used as an inclined rod support, the main diagonal brace is in contact with the bottom surface of a foundation pit, a supporting pile is inserted into the collar at the bottom end of the main diagonal brace, the auxiliary diagonal brace abuts against the column pile, and the column pile is not prone to deformation and inclination under the action of three support points; and when the supporting device is used as an anchor support, the main diagonal brace is rotated to the ground outside the foundation pit, the auxiliary diagonal brace isin contact with the ground, the supporting pile is inserted into the collar at the tail end of the auxiliary diagonal brace, and the column pile is pulled. The supporting device can achieve switchingbetween the inclined rod support and the anchor support to meet site requirements, construction units are prevented from preparing different forms of support equipment in advance, and a large amount of cost is saved.

The invention relates to a cover (1) for a waste container (3), having an opening (5) that is formed in the cover (1). Waste (11) can be transferred into the waste container (3) via a sliding surface (9) of a slide (7), the surface being associated with the opening (5). At least one metal detector (13, 13a, 13b, 13c) is associated with the cover (1) such that metal components (15) of the waste (11) can be detected before transferring the waste (11) into the waste container (3).

The invention discloses a method for designing a three-way equal-rigidity rubber shock absorber of a platform type inertial navigation system. The method comprises the following steps: designing the rotating section of a rubber ring into a parallelogram and carrying out parameterized modeling on a rubber shock absorber; establishing a finite element model of a rubber shock absorber system according to the value of a modeling parameter; carrying out modal analysis on the finite element model of the rubber shock absorber system through applying a fixed constraint boundary condition, so as to obtain a linear vibration inherent frequency fy of the system in the direction, of a y axis, parallel to the direction of a rotation shaft of the shock absorber and linear vibration inherent frequencies fx and fz of the system in the directions of an x axis and a z axis; adjusting the values of parameters m and/or n to ensure that the x axis and the z axis approach to the linear vibration inherent frequencies; and adjusting the values of parameters a and/or b to ensure that the frequencies satisfy a design target. By taking finite element modeling analysis as a measure, the method disclosed in the invention is capable of effectively assisting the experiment analysis-based design of the three-way equal-rigidity rubber shock absorber of the platform type inertial navigation system, decreasing the preparation of experiment samples, saving the cost and shortening the design period.

The present invention relates to a natural sweetening composition comprising apple concentrate having a median particle size (d50) greater than 100 μm and Luo Han Guo concentrate having a median particle size (d50) greater than 1 μm and use in beverage, food, pharmaceutical, oral, dietetic, veterinary or tobacco products thereof.

The invention relates to a method for high-throughput genetic transformation of tobacco, belonging to the field of plant genetic transformation. The method comprises the following steps of: cultivating sterile seedlings of the tobacco, preparing infected agrobacterium, infecting, carrying out co-cultivation, selecting, and carrying out differentiation culture and rooting culture. The method has the beneficial effects that the time-consuming and laborious steps of pre-cultivating a tobacco leaf disc, activating the infected agrobacterium, cleaning after co-cultivation and the like are eliminated, the human cost and the time cost are saved, the pollution risk caused by the complicated manual operation in the conversion process is reduced, and meanwhile, the genetic transformation efficiencyis further improved; and the method is suitable for the large-scale genetic transformation of tobacco.

The invention relates to a construction method and system for shield tunneling advanced detection in a marine stratum. The construction method comprises the steps that a seismic wave emitter is arranged on a cutterhead of a shield machine; a plurality of seismic wave receivers are arranged on the cutterhead; according to a seismic wave, a corresponding special coding sound transmission signal is formed, so that the seismic wave emitter emits a seismic wave signal to the front of the shield machine according to the special coding sound transmission signal. The seismic wave receivers receive the reflected seismic wave signal, record and analyze detection data so as to obtain geological conditions of the stratum in front of the shield machine. The seismic wave emitter installed on the cutterhead of the shield machine is used for emitting the seismic wave signal to the front of a chapelet face. The seismic wave emitter generates seismic elastic waves through the special coding sound transmission signal, the preparation procedure of drilling and blasting in TSP technology is avoided, the emission frequency of the seismic wave signal can be controlled, prediction accuracy of the geological condition can be improved, and control is simple, convenient and feasible.

The invention provides a mine mining plan generation method and a storage medium, the method is implemented based on a three-dimensional model-Gantt chart-network diagram-data table, and the method comprises the following steps: performing coupling analysis of a three-dimensional geologic model and an actually measured three-dimensional goaf model on a mine to generate a three-dimensional digital image model of the mine; estimating mine resource reserves based on the three-dimensional digital image model; generating a mining design model based on the evaluated mine resource reserves and the three-dimensional digital image model of the mine, and generating a mining actual measurement model based on the mining design model and a mining preset progress; calculating a loss rate and a dilution rate based on the three-dimensional digital image model of the mine; generating a mining plan by using a Gantt chart, a network diagram and a data table based on the mining design model, the mining actual measurement model, the loss rate and the dilution rate; and outputting two-dimensional and three-dimensional mining drawings on an output device based on the mining plan. And the accuracy and efficiency of mine plan compilation are improved.

The invention relates to a data transmission method, device and system, computer equipment and a storage medium. The method comprises the following steps: performing bidirectional authentication with first interaction equipment; after the bidirectional authentication is completed, receiving encrypted interaction data obtained by encrypting interaction data based on a working key and sent by the first interaction equipment; the working key is obtained by mapping an authentication key adopted during bidirectional authentication by the first interaction equipment; according to a working key obtained by mapping the authentication key on the communication adapter, decrypting the encrypted interaction data; and through the simulated device node which can be identified by the second interaction device, transmitting the interaction data obtained by decryption to the second interaction device based on the native communication protocol of the second interaction device adaptive to the device node. By adopting the method, the universality of the software can be ensured while the secure transmission of the data is ensured.

The invention provides a dissolved oxygen sensor calibration device and calibration method based on a fluorescence quenching principle. The calibration device comprises a plurality of gas cylinders, main valves are arranged on the gas cylinders, the main valves are sequentially connected with a pressure reducing valve and a pressure gauge, the outlet end of the pressure reducing valve is connectedwith a closed container through a pipeline, a plurality of temperature sensors are installed in the closed container, and the other end of the closed container is connected with an upper computer. Onthe premise that the cost is controllable, the operation links are reduced, the calibration time is shortened, the calibration precision meets the requirements of relevant national standards, and theproblems of high cost, low efficiency, low precision, poor stability and the like of a current calibration method for the dissolved oxygen sensor based on the fluorescence quenching principle are solved to a certain extent.