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293results about How to "Inhibit transformation" patented technology

Measuring transducer of vibration-type

ActiveUS7360451B2Improve density dependence of zero-pointWorking range of the measuring transducer can,Direct mass flowmetersDirect flow property measurementCouplingTransducer
A measuring transducer includes a transducer housing, as well as an internal part arranged in the transducer housing. The internal part includes at least one curved measuring tube vibrating, at least at times, during operation and serving for conveying the medium, as well as a counteroscillator affixed to the measuring tube on the inlet-side, accompanied by formation of a coupling zone, and to the measuring tube on the outlet-side, accompanied by the formation of a coupling zone. The internal part is held oscillatably in the transducer housing, at least by means of two connecting tube pieces, via which the measuring tube communicates during operation with the pipeline and which are so oriented with respect to one another, as well as with respect to an imaginary longitudinal axis of the measuring transducer, that the internal part can move during operation in the manner of a pendulum about the longitudinal axis. The measuring tube and the counteroscillator are additionally so embodied and so oriented with respect to one another that both a center of mass spaced from the imaginary longitudinal axis of the measuring tube, as well as also a center of mass of the counteroscillator spaced from the imaginary longitudinal axis, lie in a common region of the measuring transducer spanned by the imaginary longitudinal axis and the measuring tube, and that the center of mass of the measuring tube is spaced farther from the longitudinal axis than the center of mass of the counteroscillator.
Owner:ENDRESS HAUSER FLOWTEC AG

Measuring transducer of vibration-type

A measuring transducer includes a transducer housing, as well as an internal part arranged in the transducer housing. The internal part includes at least one curved measuring tube vibrating, at least at times, during operation and serving for conveying the medium, as well as a counteroscillator affixed to the measuring tube on the inlet-side, accompanied by formation of a coupling zone, and to the measuring tube on the outlet-side, accompanied by the formation of a coupling zone. The internal part is held oscillatably in the transducer housing, at least by means of two connecting tube pieces, via which the measuring tube communicates during operation with the pipeline and which are so oriented with respect to one another, as well as with respect to an imaginary longitudinal axis of the measuring transducer, that the internal part can move during operation in the manner of a pendulum about the longitudinal axis. The measuring tube and the counteroscillator are additionally so embodied and so oriented with respect to one another that both a center of mass spaced from the imaginary longitudinal axis of the measuring tube, as well as also a center of mass of the counteroscillator spaced from the imaginary longitudinal axis, lie in a common region of the measuring transducer spanned by the imaginary longitudinal axis and the measuring tube, and that the center of mass of the measuring tube is spaced farther from the longitudinal axis than the center of mass of the counteroscillator.
Owner:ENDRESS HAUSER FLOWTEC AG

Efficient multiplication CTL preparation method killing tumors in targeted mode

The invention discloses an efficient multiplication CTL preparation method killing tumors in a targeted mode. The CTL preparation method comprises the following steps: (a) removing CD4+CD25+Treg cells through immunomagnetic bead negative sorting; (b) arranging mixed cells in a serum-free medium for cultivation, and obtaining suspension cells and adherent cells; (c) adding GM-SCF and IL-4 in the adherent cells, culturing the cells for five days; in the sixth day, adding a tumour cell holoantigen, and in the seventh day, adding TNF-alpha and IL-27; (d) transferring the suspension cells to a culture flask wrapped by a CD3 monoclonal antibody and recombinant human fibronectin, adding IFN-gamma, in the second day, adding IL-2, IL-12 and the IL-27, and culturing the mixture till the eighth day to obtain CIK cells; (e) mixing the CIK cells and mature DC cells, and adding the IL-12, IL-7 and an anti-CD 28 monoclonal antibody for cultivation; in the third day, adding an anti-CTLA-4 monoclonal antibody, and then culturing the mixture for four days. According to the efficient multiplication CTL preparation method killing tumors in the targeted mode, efficiency of in-vitro CTL cell proliferation is improved, activity of killing the tumor cells in the targeted mode is improved, transformation of peripheral blood mononuclear cells to the CD4+CD25+Treg cells is inhibited.
Owner:四川全组生命科技有限公司

Preparation technology of diethylene triamine pentacetic acid modified polyvinylidene fluoride separation membrane and resin

The invention provides a technology for preparing a diethylene triamine pentacetic acid modified polyvinylidene fluoride separation membrane by a physical blending/phase transition technology and a chemical grafting blending/ phase transition technology. The technology is as follows: reagents such as diethylene triamine pentacetic acid, polyvinylidene fluoride, melamine, dimethyl sulfoxide, acrylic acid, polyvinylpyrrolidone and the like are taken as raw materials; diethylene triamine pentacetic acid polyamino and polycarboxylic acid compound is uniformly mixed in a polyvinylidene fluoride separation membrane and resin respectively by the physical blending/phase transition technology and the chemical grafting blending/ phase transition technology. The technology improves the hydrophobic properties of the conventional polyvinylidene fluoride micro-filtration separation film and the resin, realizes metallic ions in waste water, and has the advantages of simple operation, uniform blending and the like. The diethylene triamine pentacetic acid modified polyvinylidene fluoride separation membrane and the resin increase the purification efficiency of drinking water, realize the resource utilization of the heavy metal in the industrial wastewater, and expand the application field of the polyvinylidene fluoride micro-filtration separation film.
Owner:YANSHAN UNIV

Method for reducing NOx emission in iron ore sintering process

The invention discloses a method for reducing NOx emission in the iron ore sintering process. Firstly, conventional sintering fuel coke powder or anthracite is screened into three grain sizes of -1 mm, 1-3 mm and +3 mm; the coke powder or anthracite with the grain size being -1 mm and high-reaction-activity fossil fuel or biomass fuel with the grain size being -1 mm are pressed into fuel particles with the grain size being 1-3 mm; the fuel particles obtained through pressing with the grain size being 1-3 mm and the coke powder or anthracite obtained through screening with the grain size being 1-3 mm are added into fine particle iron ore, part of coarse particle iron ore, flux and return mines to be subjected to granulation in a rotary drum mixer; and the granulated mixed material, modified coke powder or anthracite with the particle size being +3 mm and the remaining coarse particle iron ore are subjected to secondary mixing granulation, and the obtained mixed material is distributed and then ignited and sintered. Generation of fossil fuel NOx in each grain size is controlled specifically according to the features of NOx generated by the fossil fuel in different grain sizes, so that generation of NOx is reduced to a greater extent to reduce NOx emission, and NOx emission is reduced by 20%-40%.
Owner:CENT SOUTH UNIV

Catalyst for purifying tail gas of diesel automobiles, preparation method and purification device thereof

The invention relates to a catalyst for purifying tail gas of diesel automobiles, a preparation method and a purification device thereof. The catalyst comprises a first carrier taking cordierite honeycomb ceramics as a matrix, and a second carrier taking SiC or a cordierite wall-flow structure as a matrix, a first coating and active components on the first carrier, as well as a second coating and active components on the second carrier. In the invention, coating, roasting and reduction processes are adopted for preparing the coatings composed of composite oxides. The catalyst and the device in the invention employ a technology combining a DOC (diesel oxidation converter) and a CDPF (catalyzed diesel particulate filter). By means of the DOC at a front end, HC, CO as well as the soluble organic fractions (SOF) in PM are removed through oxidation. Meanwhile, NO is converted to NO2 that has stronger reducibility so as to be good for the reaction of NO2 and C, thus reaching the purposes of removing NO and lowering the combustion temperature of C simultaneously. Depending on the self-temperatures of diesel automobiles to realize regeneration of a particulate filter, the purification device in the invention has the characteristics of high purification efficiency and convenient usage, etc.
Owner:CHONGQING MATERIALS RES INST

Method for highly accurately measuring absolute angle

The invention discloses a method for highly accurately measuring an absolute angle, which facilitates the volume miniaturization and circuit simplification of measuring equipment to ensure that the measuring equipment is convenient to carry and can improve anti-interference performance and reliability. In the method, a green light source and a charge coupled device (CCD) linear array image sensor are correspondingly arranged on two sides of a single-code channel code disc; the code disc is provided with a position-fixed circular code channel; and codes for identifying angles are sequentially arranged along a circumference in the code channel. The method comprises the following steps of: acquiring image signals by using the CCD linear array image sensor, and performing decoding and image computation on the image signals respectively; obtaining the integer part of an angle value through decoding, and performing image computation by using a symmetric function fitting algorithm to obtain the decimal part of the angle value; and displaying the data. By the method, code channel codes 10 are more convenient to identify and cannot be repeated on the basis of a green light CCD highly subdivided digital single-code channel absolute coding disc 1; and received photoelectric signals have high quality and reliability, and an error code is difficult to generate.
Owner:朱勤

Wave-absorbing material reflection measuring device and method

The invention provides a wave-absorbing material reflection measuring device. The wave-absorbing material reflection measuring device comprises a transmitting antenna, a receiving antenna, an arched frame, a time-domain pulse generator, a time-domain pulse receiver and a good conductor board, wherein the receiving antenna and the transmitting antenna are symmetrically placed on the arched frame; positions and actinal surface normal directions of the transmitting antenna and the receiving antenna are adjustable; the time-domain pulse generator generates a time-domain pulse to excite the transmitting antenna; the time-domain pulse receiver receives a time-domain signal; a wave-absorbing material is laid on the surface, facing the transmitting antenna and the receiving antenna, of the good conductor board to obtain a wave-absorbing material board. A wave-absorbing material reflection measuring method comprises the following steps: enabling included angles between the actinal surface normals of the receiving antenna and the transmitting antenna and the normal of the measured wave-absorbing material board to be equal; transmitting the time-domain pulse signal, and receiving a time-domain received signal waveform; selecting a time-domain reflected signal of the measured wave-absorbing material by using a time window, and performing time domain and frequency domain processing to obtain a frequency-domain reflected waveform of the wave-absorbing material. Through the wave-absorbing material reflection measuring device and the wave-absorbing material reflection measuring method, a test error caused by time domain-frequency domain conversion is reduced.
Owner:BEIJING INST OF RADIO METROLOGY & MEASUREMENT

High-activity nitrification inhibition type multifunction fertilizer synergist and preparation method thereof

The invention relates to a high-activity nitrification inhibition type multifunction fertilizer synergist and is applicable to the field of agriculture and forestry. The high-activity nitrification inhibition type multifunction fertilizer synergist is composed of following raw materials of, by weight, 3-35% of vitamin C, 3-35% of N-acyl sodium glutamate, 3-35% of 3,4-dimethylpyrazole phosphate (DMPP), 3-35% of farm-oriented rare earth, 5-35% of fulvic acid, 0.5-2.5% of compound sodium nitrophenolate, 15-45% of vermiculite and 15-45% of medical stones. The raw materials are smashed, screened by a 30-100 mesh screen, then stirred and mixed according to a certain ratio to obtain the fertilizer synergist. The fertilizer synergist is applicable to slow-acting nitrogen fertilizers or composite nitrogen fertilizers which use ammonium nitrogen fertilizers or urea as raw materials and is capable of being matched with the ammonium nitrogen fertilizers or the urea to be simultaneously applied to various types of soil, the fertilizer efficiency period of nitrogen fertilizers with the added multifunction fertilizer synergist can be prolonged to 90-110 days, abilities of drought resistance and disease resistance can be obviously improved, soil microorganism activities and crop root system activities can be stimulated, effectiveness and utilization efficiencies of soil fertilizers can be improved, and residual effects on crops are obvious.
Owner:GUANGXI NEW ORIENTATION CHEM IND

Calcium sulfo-silicate sulfo-aluminate cement and preparation method thereof

The invention discloses calcium sulfo-silicate sulfo-aluminate cement and a preparation method thereof. A main mineral phase of clinker of the cement comprises the following ingredients in parts by mass: 5-40 parts of C4(AxF1-x)3$, 20-65 parts of C5S2$, 5-15 parts of C$ and 5-20 parts of C3A. The preparation method comprises the steps of calcining crude materials of the cement once at the temperature of 1,050 DEG C to 1,200 DEG C, and carrying out heat preservation for 1 hour or less, thereby preparing the cement. According to the calcium sulfo-silicate sulfo-aluminate cement and the preparation method thereof, the energy consumption and CO2 discharge of preparation of the cement clinker are lowered to a large extent, and the calcined clinker has good grindability. The calcium sulfo-silicate sulfo-aluminate cement presents good early mechanical properties, calcium sulfoaluminate minerals are basically hydrated completely at a seventh day, and calcium sulfo-silicate minerals already start to hydrate at a seventh day, so that the problem of sulfo-aluminate cement that later strength is lowered is solved; dihydrate gypsum generated from the hydration of calcium sulfo-silicate can be converted into mono-sulfur calcium sulfo-aluminate hydrate from tri-sulfur calcium sulfo-aluminate hydrate.
Owner:CHONGQING UNIV
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