511 results about "Low activity" patented technology

The invention relates to a buffer solution for suspending animal or human cells and for dissolving biologically active molecules in order to introduce said biologically active molecules into the cells using an electric current and to a method for introducing biologically active molecules into animal or human cells using an electric current and a buffer solution. The inventive buffer solution has a buffering capacity of at least 20 mmol*I⁻¹*pH⁻¹ and an ionic strength of at least 200 mmol*I⁻¹ during a change to the pH value from pH 7 to pH 8 and at a temperature of 25° C. The use of a buffer solution of this type in the corresponding method allows biologically active molecules to be introduced into animal and human cells with a high degree of transfection efficiency and at the same time a low cell mortality. Different cell types, in particular dormant and actively dividing cells of low activity, can be successfully transfected in said buffer solution.

The invention creatively discloses a plate mop and mop bucket. The plate mop and mop bucket comprises a plate mop and a mop bucket (2); the lower side of a mop rod (1) is movably connected with a flat mop plate (11); the flat mop plate (11) is provided with mop cloth; the mop bucket (2) is provided with a water squeezing cavity (3) and a cleaning cavity (8) which are mutually separated from each other; the water squeezing cavity (3) is provided with a water squeezing device; the cleaning cavity (8) is internally provided with a cleaning device; during water squeezing, the flat mop plate (11) rotates to a position parallel to the mop rod (1), is mutually positioned to the mop rod (1) and moves up and down relative to the water squeezing device to wring the mop cloth to squeeze water; and a cleaning component used for cleaning the mop cloth is arranged in the cleaning device, and during cleaning, a part of the cleaning component is placed in water, the flat mop plate (11) rotates to the position parallel to the mop rod (1), is mutually positioned to the mop rod (1) and washes the mop cloth through mutual friction between the cleaning component and the mop cloth in the water. After adopting the structure, the plate mop and mop bucket has the advantages of simple and reasonable structure, convenience to operate and use, capability of alternatively carrying out cleaning and dewatering, saving labor by being cleaned in the water with rapid speed, good water squeezing and cleaning effects and the like.

A power-scalable hybrid technique to reduce blocking and ringing artifacts in low bit-rate block-based video coding is employed in connection with a modified decoder structure. Fast inverse motion compensation is applied directly in the compressed domain, so that the transform (e.g., DCT) coefficients of the current frame can be reconstructed from those of the previous frame. The spatial characteristics of each block is calculated from the DCT coefficients, and each block is classified as either low-activity or high-activity. For each low-activity block, its DC coefficient value and the DC coefficient values of the surrounding eight neighbor blocks are exploited to predict low frequency AC coefficients which reflect the original coefficients before quantization in the encoding stage. The predicted AC coefficients are inserted into the low activity blocks where blocking artifacts are most noticeable. Subject to available resources, this may be followed by spatial domain post-processing, in which two kinds of low-pass filters are adaptively applied, on a block-by-block basis, according to the classification of the particular block. Strong low-pass filtering is applied in low-activity blocks where the blocking artifacts are most noticeable, whereas weak low-pass filtering is applied in high-activity blocks where ringing noise as well as blocking artifacts may exist. In low activity blocks, the blocking artifacts are reduced by one dimensional horizontal and vertical low-pass filters which are selectively applied in either the horizontal and/or vertical direction depending on the locations and absolute values of the predicted AC coefficients. In high activity blocks, de-blocking and de-ringing is conducted by 2- or 3-tap filters, applied horizontally and/or vertically, which makes the architecture simple.

The invention relates to a catalyst for ethanediol production by oxalic ester hydrogenation, which solves the problems of small specific surface, low activity and poor stability of the catalyst in the previous technique. The catalyst used in the invention is composed of the following active components, assistants and carriers in terms of parts by weight: (a) 5-80 parts of active components; (b) 0-40 parts of assistants and (c) 1-30 parts of carriers, wherein the active component is copper, copper oxide or mixture thereof, the assistant is selected from at least one of Zn, Mn, Ba, Cr, Ni or Fe or oxides thereof and the carrier is selected from at least one of the alumina, silica, zirconia or molecular sieve. When the active component is copper, the technical scheme that the value of (b) is more than zero solves the problem in a good way. The catalyst can be used for ethanediol production in the industry.

The invention discloses an oxide dispersion strengthened low-activation martensitic steel. A substrate is a CLAM steel and contains 0.2 to 0.5 percent of Y2O3 and 0.10 to 0.50 percent of Ti. The method comprises the following steps that: CLAM steel powder, Y2O3 powder and Ti powder are evenly mixed and put in a sealed container for degassing, subjected to mechanical alloying, hot isostatic pressing or hot-pressing sintering and densification molding under the protection of high-purity argon gas, then subjected to hot squeezing or forging and rolling and other machining and molding processes, and the needed section material is prepared; and finally, the section material is subjected to the treatment of quenching and tempering to prepare the oxide dispersion strengthened low-activation martensitic steel ODS-CLAM. The oxide dispersion strengthened low-activation martensitic steel has the advantages that: the low-activation martensitic steel realizes a martensite-based alloy with oxide strengthening phases evenly dispersed and distributed and crystal grains of a reasonable size, can be used as a structural steel material, has the characteristics of strong neutron irradiation resistance, good high-temperature performance, low activation, etc. and is suitable for a fusion reactor and other environments with strong neutron irradiation and high-temperature.

A system and method are provided for optimizing maintenance of a geographically distributed data processing system. The method comprises selecting a primary territory having associated operating hours, identifying maintenance hours that exclude the operating hours, and selecting a maintenance time within the available maintenance hours. The midpoint of the maintenance hours may be selected as the maintenance time, or activity distribution data may be analyzed to select a maintenance time corresponding to a low activity time.

Apparatus and methods for activity based plasticity in a spiking neuron network adapted to process sensory input. In one approach, the plasticity mechanism of a connection may comprise a causal potentiation portion and an anti-causal portion. The anti-causal portion, corresponding to the input into a neuron occurring after the neuron response, may be configured based on the prior activity of the neuron. When the neuron is in low activity state, the connection, when active, may be potentiated by a base amount. When the neuron activity increases due to another input, the efficacy of the connection, if active, may be reduced proportionally to the neuron activity. Such functionality may enable the network to maintain strong, albeit inactive, connections available for use for extended intervals.

The invention relates to a video quality automatic evaluation method and an evaluation method, relating to the evaluation of wireless video communication, which can confirm the evaluation property, reduce needed reference data and reduce calculation complexity, therefore, the evaluation mode is adaptive to the evaluation application facing wireless network. The method comprises: processing content pre-check on the reference video not compressed; according to the average activity of each activity region, dividing the check on the video characters into high and low activity region character checks, to attain the check parameters representing the spatial domain and time domain characters which express the characters of the video sections in each activity region; weighting the check parameters of the spatial domain and time domain characters of each activity region to build the spatial domain and time domain character parameters of the whole video, realizing the projection between the check parameters and the subjective quality expression according to a preset video quality evaluation database, to realize the automatic evaluation on the video quality facing wireless network.

A method for synthesizing propylene glycol methyl ether relates to a method for synthesizing propylene glycol methyl ether. The method of the invention settles the problems of high reaction temperature, high pressure, low activity of catalyst and low selectivity existing in the prior method for preparing propylene glycol methyl ether. The method comprises the following steps: 1. preparing a compound A; 2. preparing a compound B; and 3. after naturally cooling the mixed solution B to a room temperature, atmospherically distilling and obtaining the propylene glycol methyl ether. The method of the invention has the advantages of simple process, applicable whole reaction in the condition of normal pressure and low-temperature, 93.3%-94.2% of epoxy propane conversion rate, 98.1%-99.1% of product selectivity, and no environment pollution as the whole reaction process is executed under the condition of no dissolvent. The propylene glycol methyl ether (1-methoxy-2-propanol or 2-methoxy-1-propanol) synthesized according to the invention can be synthesized by regulating the mixed liquid of acetate methyl glyoxaline hydroxide or acetate methyl glyoxaline chloride and ferric trichloride.

The invention relates to a ZSM-5/mordenite/zeolite Y intergrowth molecular sieve and a synthetic method thereof, which mainly solves the problems of singular aperture, rather weak acidity and low activity of porous materials synthesized by the prior art. The invention adopts the technical proposal that the nucleation and process of growth of the molecular sieve are controlled properly by adding crystal seeds containing zeolite Y precursors in the synthetic process of the intergrowth molecular sieve for producing the ZSM-5/mordenite/zeolite Y intergrowth molecular sieve, wherein the proportion of intergrowth phases is adjustable, and the synthesized ZSM-5/mordenite/zeolite Y intergrowth molecular sieve adopts the compositions including the following mole relation: nSiO2:Al2O3, where n is between 4 and 400 in the formula, and the method is characterized in that the ZSM-5/mordenite/zeolite Y intergrowth molecular sieve has more than two phases and an XRD diffraction pattern thereof has the d-space maximum value at the lengths of 14.3+-0.1, 13.58+-0.1, 11.21+-0.1, 10.04+-0.1, 9.47+-0.1, 9.09+-0.1, 6.6+-0.1, 5.7 +-0.1, 4.5+-0.1, 3.98+-0.05, 3.76+-0.04, 3.64+-0.04, 3.53+-0.04, 3.38+-0.02, 3.19+- 0.05 and 2.88+-0.1 angstroms, thereby solving the problems properly. The ZSM-5/mordenite/zeolite Y intergrowth molecular sieve can be used for preparing ethylene and propylene by catalytic-cracking naphtha in the industrial production.

The invention provides a carbon-loaded kernel-shell copper-palladium-platinum catalyst for a fuel battery and a preparation method thereof. Conductive carbon black is used as a carrier, an active component is a copper-palladium-platinum alloy with a nuclear-shell structure, wherein the copper palladium is a kernel, the platinum is a shell, and the catalyst comprises the following ingredients by mass percent: 70 to 91 percent of conductive carbon black, 2 to 10 percent of copper, 2 to 10 percent of palladium and 5 to 10 percent of platinum. A two-step reduction method is utilized, namely, low-activity metal is firstly reduced, then the active precious metal is reduced, the precious metal is precipitated on the surface of the non-precious metal by controlling the reaction temperature and the pH value, and a kernel-shell catalyst is formed through a dealloying step; and in addition, the carbon carrier is added in the preparation process, so that the nano metal particles can directly grow on the carrier, the combination of the catalyst particles and the carbon carrier can be enhanced, and the catalyst is more stable. Due to the adoption of the preparation method, the catalyzing efficiency of the catalyst and the utilization rate of the precious metal can be greatly improved, and the development of the fuel battery can be promoted.

The invention relates to a bimetal or multi-metal high-dispersion composite coal tar hydrogenation catalyst and a preparation method thereof. The catalyst comprises molecular high-activity components of one or a plurality of mixtures of water-solubility salt compounds of metal from molybdenum, nickel, tungsten or cobalt, nanometer low-activity components gamma-FeOOH grains and micro or sub nanometer carrier pulverized coal, the activity components are uniformly and highly dispersed on the surfaces of the carrier pulverized coal, the catalyst is micro or sub nanometer fine powder and is high in activity, particles of the activity components are small and are highly uniformly dispersed on the surface of a carrier, the utilization quantity of the catalyst is low, cost is reduced, and the bimetal or multi-metal high-dispersion composite coal tar hydrogenation catalyst can be widely applied to coal tar hydrogenation or coal liquefaction.

The invention relates to a vinyl acetate catalyst, a preparation method thereof and a method for synthesizing vinyl acetate in order to mainly solve the problem of low activity and selectivity of a catalyst in the prior art. The problem is better solved through the technical scheme that the vinyl acetate catalyst comprises a carrier, active components and a catalyst promoter, wherein the active components include metal Pd and metal Au; the catalyst promoter is alkali metal acetate; the carrier is silicon dioxide provided with a coating on the surface; the coating is prepared from modified metal elements and a silicon dioxide adhesive for adhering the modified metal elements on the surface of the carrier; 0.01-1.00g/L of the modified metal elements are contained; the modified metal elements are at least one selected from IIA metal elements and IIIB metal elements. The vinyl acetate catalyst can be used for industrial production of vinyl acetate.

The invention relates to a method for converting heavy aromatics to light aromatics and transferring an alkyl radical, which mainly solves the problem of low activity during the reaction of converting the heavy aromatics to the light aromatics and transferring the alkyl radical in the presence of a conventional catalyst. In the invention, a new method for converting the heavy aromatics to the light aromatics and transferring the alkyl radical is adopted, wherein the catalyst comprises the following components in part by weight: a) 5 to 95 parts of nuclear-shell molecular sieve material and b)95 to 5 parts of adhesive; the nuclear phase of the nuclear-shell molecular sieve is ZSM-5; and the shell layer is beta zeolite grains with coverage of between 50 and 100 percent. The technical scheme solves the problem better and the method can be used in the industrial production of converting the heavy aromatics to the light aromatics and transferring the alkyl radical.

A power supply and method for a central processing unit (CPU). The power can include a first power supply circuit such as a DC/DC converter for supplying a voltage of a first level to the CPU when the CPU is in a high activity mode, and a second power supply circuit such as an LDO regulator circuit for supplying a voltage of a second level lower than the first level to the CPU when the CPU is in a low activity mode. The second power supply circuit is preferably efficient when the CPU is in a low load or low activity mode. In such a power supply, when the CPU is in the low activity mode, the LDO regulator circuit is operated to reduce or prevent the efficiency from being degraded, reduce a CPU power consumption and extend a CPU battery lifetime.

The invention relates to a catalyst for dehydrogenating light alkane in order to mainly solve the problem of relatively-low activity of a dehydrogenating catalyst prepared in the prior art. The problem is better solved through the technical scheme that the catalyst for dehydrogenating light alkane comprises the following components in parts by weight: 1-30 parts of a Cr element or an oxide of the Cr element (a), 0.1-5 parts of alkali metal oxides or alkaline earth metal oxides (b), 0.001-1 part of the group VA elements selected from a periodic table of elements or oxides of the group VA elements (c), 0.001-1 part of the group IIIA elements selected from the periodic table of elements or oxides of the group IIIA elements (d), and 54-99 parts of Al2O3 or SiO2 (e). The catalyst can be used for industrial production of light olefin prepared by dehydrogenating light alkane.

The invention provides a method for preparing separated soy protein and comprises the following steps: (1) the preparation of concentrated soybean albumen powder by vacuum drying alcoholic method; (2) solution preparation and heat treatment; (3) acid coprecipitate and neutrality adjustment; (4) instantaneous heating and sterilizing as well as sponging drying. The separated soy protein prepared by the method not only has the advantages of high solubility and high protein content of common protein isolate, but also has the advantages of low beanyflavor, light color, low activity of nutrition resistant substance, easy treatment on discharged sewage, and the like which are not possessed by common separated soy protein; therefore, the invention is an ideal preparation method for producing beverage type separated soy protein.

The invention relates to a charcoal loading nanometer zero-valent iron activated sodium persulfate system and preparation and application thereof. Firstly, biomass is burned into charcoal, the charcoal is cleaned and dried after being acidized, and added into a ferrous sulphate solution taking absolute ethyl alcohol and water as a dispersing agent for being stirred fully, then a sodium borohydridesolution is added dropwise to generate the charcoal loading nanometer zero-valent iron; lastly, a composite material prepared with pure water and ethyl alcohol is washed and dried, the obtained charcoal loading nanometer zero-valent iron activated material is placed in the solution, after ultrasonic treatment is carried out, the material is uniformly dispersed in the solution, at the moment, a sodium persulfate solution is added, the mixture is mixed evenly to obtain the charcoal loading nanometer zero-valent iron activated sodium persulfate system. The oxidation system is used for reducing waste, polluted surface water and target pollutants in the underground water, and the problems of the agglomeration and lower activity of sodium persulfate during the use of the nanometer zero-valent iron are solved.

The invention discloses oxide dispersion strengthening low activity ferrite/martensite steel and a smelting technology and a smelting method of the oxide dispersion strengthening low activity ferrite/martensite steel, and belongs to the technical field of special steel metallurgy. The oxide dispersion strengthening low activity ferrite/martensite steel comprises raw materials including, by mass percent, 8.9%-9.1% of electrolytic chromium, 0.4%-0.5% of electrolytic manganese, 0.05%-0.08% of high-purity silicon, 0.08%-0.12% of high-purity graphite, 1.4%-1.6% of metal tungsten, 0.1% of metal tantalum, 0.18%-0.22% of metal vanadium, 0.1%-0.25% of sponge titanium, 0.2%-0.5% of high-purity rare earth yttrium, 1% of oxide scales and the balance high-purity low-sulfur low-phosphorus pig iron. A preparing method of the oxide dispersion strengthening low activity ferrite/martensite steel comprises material preparing, vacuum induction smelting, casting, forging and electroslag remelting processes, ODS-RAFM is prepared, and the large-specification ODS steel high in density, uniform in component, little in energy consumption, high in purity, stable in smelting method and capable of meeting the need of large nuclear power equipment is achieved.

The invention discloses organic aqueous flux for lead-acid storage battery pole group automatic welding and a preparation method thereof, which belong to the technical field of aqueous organic flux. The organic aqueous flux for lead-acid storage battery pole group automatic welding mainly solves the problems of susceptibility to solidification in winter, low activity, low lead and calcium alloy welding effect, influences on battery performance due to phosphoric acid and the other inorganic flux of the conventional oil flux. The organic aqueous flux is mainly characterized by being prepared from 35 to 55 percent of organic acid activating agent, 20 to 35 percent of high-boiling-point solvent, 3 to 5 percent of wetting agent, 0.5 to 1 percent of surfactant, 0.5 to 1.5 percent of corrosion inhibitor, 3 to 5 percent of activity enhancer and the balance of deionized water. The preparation method comprises: adding the solvent into stainless steel kettle with stirring at normal temperature, starting a stirrer, adding other solid raw material, stirring till all solid dissolves, stopping stirring, filtering with a 200-mesh sieve and filling. The organic aqueous flux has the characteristics of high welding capacity, high wetting performance, no corrosion and residue, low price and simple preparation method and is mainly used for automatically welding lead-acid storage batteries.

The present invention relates to a mimetic peptide of erythropoietin represented by the Formula (I) and applications thereof. The mimetic peptide of erythropoietin or pharmaceutically-acceptable salts thereof can be used as alternatives of erythropoietin, and can be used in drugs for preventing and/or treating diseases and/or symptoms related to the low activity of EPO or EPO receptors.

The invention discloses a preparation method for separating biochemical medicaments from mucous membranes of porcine small intestines, in particular a preparation method for producing heparin sodium by using porcine small intestines. The preparation method for producing the heparin sodium by using the porcine small intestines is characterized by comprising the following steps of: preparing intestinal mucosa, and performing enzymolysis, adsorption, elution, precipitation, desalination, dehydration and drying to obtain the heparin sodium. The method has the advantages that: the heparin sodium has high yield, low activity loss and stable quality; the waste liquor is pollution-free in discharge and can be recycled; the problem of stench in a heparin sodium workshop is solved by adopting a workshop waste gas purification treatment device; and 2,000 to 2,400 pieces of porcine small intestines are needed for producing 0.1 billion units of heparin sodium by using the conventional process, only 1,400 to 1,600 pieces of porcine small intestines are needed for producing 0.1 billion units of heparin sodium by using the preparation method, and the effect and the activity of the heparin sodium are greatly improved, so that the production cost is greatly reduced, and the profit can be improved by over 40 percent.

The invention relates to wastewater treatment method and device, in particular to a magnetic-stability fluidized bed photocatalytic reactor and a method for treating organic wastewater with difficult degradation thereby. The method solves the problems of low photocatalytic quantum, low activity and easy loss of active components existing in the traditional photocatalytic method and comprises the following steps of: feeding the organic wastewater to a reactor through a pump and a liquid inlet, adding a magnetism-loaded photocatalyst to the reactor through a catalyst feeding port, starting a fan to make air pass through a flow buffer and then enter an air distributor and make the magnetism-loaded photocatalyst be in a suspension state; starting Helmholtz coils to generate a magnetic field, opening an ultraviolet lamp when the magnetism-loaded photocatalyst is in the suspension state to degrade the organic wastewater, and then discharging the treated organic wastewater to a second liquid storage tank. The utilization rate of light energy can be improved, and because the magnetism-loaded photocatalyst is in the stable suspension state, the active component loss caused by mutual friction can be reduced; and the device has the advantages of compact structure, mild condition and high utilization rate of the light energy and can operate intermittently and run continuously.

The invention discloses a dual solidifying paint for wood and metal substrate, which is characterized by the following: the paint component A is ultraviolet solidifying composition, which contains 30-60% low-activity oligomer; the activity thinner is composed of 5-20% 1-alkylene unsaturated and doubly-bond compound, not more than 20% 2-alkylene unsaturated and doubly-bond compound, 5-20% not less than 3-alkylene unsaturated and doubly-bond compound, 1.0-10% photopolymer initiator, not more than 20% adhesion promotion resin, not more than 30% thinner; the composition B contains not less than 3 NCO hardener; the weight rate of component A and B is (85- 95):(5-15).

The invention relates to the technical field of integrated circuit trustworthiness detection, in order to effectively remove the low activity node in the circuit, to improve the activation of the circuit, to greatly shorten the activation time of the low active node and to reduce the random and the uncertainty of the activation time of the hardware Trojan horse in the process of the hardware Trojan horse detection to a great extent. In addition, in the combination of the bypass signal analysis method or the logic test method, the activation time of the hardware Trojan horse is greatly shortened and the detection rate of the hardware Trojan horse is effectively increased. The technical proposal of the method for effectively improving the hardware Trojan horse activation probability is an effective method for improving the activation probability of the hardware Trojan horse. The method comprises the following steps that1, generating a random test vector and an excitation circuit; 2, counting the transition information of each node of the circuit; 3, setting the critical probability threshold; 4, determining the location of the implanted node; 5, integrating the circuit and detecting. The integrated circuit trustworthiness detection is mainly applied to the case of the integrated circuit trustworthiness detection.

The heat resisting jam with low-activity water includes mashed fruit 40-50 wt%, modified starch 4-10 wt%, sugar 45-50 wt%, pectin 0.6-0.8 wt%, citric acid 0.6-0.8 wt% and potassium sorbate 0.5-0.6 wt%. Its production process includes the following steps: peeling fruit, stoning, slicing, boiling for 2 min, mashing in pulping machine to produce mashed fruit; vacuum concentration at 45-50 deg.c to soluble solid content of 30-35 %; mixing with modified starch, sugar, pectin and potassium sorbate; vacuum concentration to soluble solid content of 80-90 %, pH 4.0; and mixing with pigment, essence and citric acid via stirring. When the jam is contacted with biscuit and similar food with low water content, its water will not transfer and it is heat resistant, so that it is suitable for use in sandwich biscuit product.

The invention discloses a porous-ceramic with uniformly through ducts as well as a preparation method and use of the porous-ceramic. The invention discloses a preparation method of the porous-ceramic with three-dimensionally through ducts, uniform porosity distribution and adjustable pore-size linearity. A raw material adopted by the invention is uniform low-activity compact spherical particles, the contact parts of the spherical particles are used for providing ceramic strength while a sintering neck is formed through sintering, and a three-dimensional duct is formed by stacking gap of the spherical particles. The typical preparation method comprises the following steps: mixing a certain amount of organic monomers such as MBAM, (NH4)2S2O4 and TEMED to prepare a premixed solution, pouring the premixed solution into the low-activity compact spherical particles, controlling the adding amount of the premixed solution, and realizing tight stacking of the spherical particles by using a certain method; curing the stacked particle accumulation body at a certain temperature; and drying and sintering the cured blank body to obtain the porous-ceramic. The porous-ceramic prepared through the invention has good separation efficiency and flux on the separation of the oil-water mixture, and can be widely applied to the fields of high-temperature flue gas and melt filtering.

The present invention relates to a vanadium-phosphorus catalyst for gas phase catalytic oxidation reactions of hydrocarbons. A purpose of the present invention is mainly to solve the technical problems of low activity and low selectivity of the existing catalyst. According to the present invention, a combination compound containing vanadium, phosphorus, oxygen, and one or a plurality of other elements is used as the catalyst, the XRD diffraction pattern of the compound shows that the main diffraction characteristic peaks exist when 2[theta] is 12.5, 18.5, 22.8, 28.4, 29.3, 29.9 and 43.2, and the diffraction peak height ratio I1/I2 of the diffraction peak height (I1) at the 2[theta] of 12.5 to the diffraction peak height (I2) at the 2[theta] of 22.8 is 0.3-3; and the catalyst can excellently catalyze hydrocarbons to be subjected to gas phase selective oxidation, and the prepared catalyst can be used for gas phase catalytic oxidation reactions of hydrocarbons.

This invention relates to a method for synthesizing isosulfocyanate, characterizing of rational process, environmental friendly, safe and reliable production, high recovering rate, and basically no three wastes. The procedures comprise: dissolve the raw material aminated compounds and carbon bisulphide in organic solvent to synthesize dithiocarbamate under alkaline action, and then react with chloro-silicane to synthesize isosulfocyanate under catalyst action, wherein it employs two-step method for low activity aminated compound and one-step method for high activity aminated compound.

The invention discloses a radiation device of radiation treatment through rotating focus of gamma ray, which comprises the following parts: rotary ring, source bulk and detector, wherein multiple radiation sources are set in the source bulk, which emits ray to focus on the public focal point on the shaft line of rotary ring, one end of source bulk and detector is connected on the rotary ring, which are distributed symmetrically along radial direction of rotary ring, the high-activity treating radiation source and low-activity diagnosis radiation source are set in the source bulk, the beam of radiation source pierces the shaft line of rotary ring, the detector receives radiation information, which responds to output detecting information.