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494results about How to "Simplify operation steps" patented technology

Y molecular sieve high in silica alumina ratio and abundant in secondary holes and preparation method therefor

InactiveCN104843736ASimplify operation stepsLow cost of reagentsFaujasite aluminosilicate zeoliteMolecular sieveSieve
The invention provides a Y molecular sieve high in silica alumina ratio and abundant in secondary holes and a preparation method therefor. The preparation method comprises steps of: Y-type zeolite is processed for 1-5 hours at 300-600 DEG C to obtain dry Y-type zeolite, and calculated by SiO2 and Al2O3, the silica alumina mole ratio of the Y-type zeolite is (3-6):1;the temperature is lowered to 200-600 DEG C;in a waterless dry environment, dry air saturated by a dealuminated siliceous reinforcing agent is introduced to the dry Y-type zeolite to react for 0.5h-7h, or in a waterless dry environment, the temperature is raised to 500-700 DEG C at a constant speed, at the same time, the dry air saturated by a dealuminated siliceous reinforcing agent is introduced to the dry Y-type zeolite to react for 0.5h-7h, and a rough product is obtained; the rough product is subjected to alkali treatment for 10min-5h at 30-100 DEG C, solid-liquid mass ratio for the alkali treatment is (1-50):1, and a Y molecule sieve high in silica alumina ratio and abundant in secondary holes is obtained. The invention further provides the Y molecule sieve high in the silica alumina ratio and abundant in secondary holes, obtained by adopting the preparation method and has high silica aluminum ratio and abundant secondary hole structures.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Air conditioning system of oxygen cabin-type gymnasium and working method thereof

The invention provides an air conditioning system of an oxygen cabin-type gymnasium and a working method thereof. An oxygen cabin-type gymnasium system comprises the oxygen cabin-type gymnasium, a central air conditioner fresh air supply general air conduit, an air source purifying system, an air degerming and filtering device, oxygen producing equipment, oxygen supply equipment, a carbon dioxide lower suction system and a negative oxygen ion generator. When the oxygen content measured by an oxygen measurer in the gymnasium is not more than 22%, the oxygen producing equipment starts working and supplies oxygen to the gymnasium, when the oxygen content measured by the oxygen measurer in the gymnasium is not less than 30%, the oxygen producing equipment does not work, when the CO2 content measured by a carbon dioxide meter in the gymnasium is not more than 3%, the carbon dioxide lower suction system does not work, and when the CO2 content measured by the carbon dioxide meter in the gymnasium is more than 3%, not less than 5% and not less than 6%, the weak grade, the intermediate grade and the strong grade of an exhaust fan in the carbon dioxide lower suction system work respectively. The invention has the following advantages of reasonable structure, simple operation steps, economic cost and strong practicability, and completely changes the air quality in the gymnasium so as to change the body function of a sporter.
Owner:李洪均

Regulation and preparation method and application of multicolor fluorescent carbon dots

InactiveCN109266337ASimplify operation stepsGood solubility and dispersibilityCarbon active ingredientsAntinoxious agentsChemistryP-Phenylenediamine
The invention provides a regulation and preparation method and application of multicolor fluorescent carbon dots. The preparation method of the fluorescent carbon dots comprises the steps that p-phenylenediamine with the certain mass is dissolved into secondary water, and subjected to ultrasonic blending, or ultrasonic blending is conducted after pH value of the solution is conditioned; the solution is transferred into a hydrothermal reaction still and reacts for 8-10 h at the temperature of 200-220 DEG C, the product is cooled to be at the room temperature and centrifugalized, the supernatantliquid is taken and subjected to dialysis treatment, and a pure carbon dot water solution is obtained; and the carbon dot water solution is freeze-dried, and the different fluorescence emitting carbon dots are obtained. The operation steps are simple, and the raw material does not need to be treated or modified through a surface passivation agent. The obtained carbon dots have the good solubilityand dispersibility in the water solution. The prepared carbon dot quantum yield is high, taking rhodamine B (the quantum yield in ethyl alcohol is 89%) as the reference substance, the quantum yield of the prepared carbon dots is usually between 7.4% and 13.6%, and the prepared fluorescent carbon dots can be applied to removal of free radicals and cell imaging.
Owner:SHANXI UNIV

Alga sort classification identification method based on Raman spectroscopy technique

The invention discloses an alga sort classification identification method based on a Raman spectroscopy technique. The alga sort classification identification method comprises the steps as follows: a plurality of samples of the same alga sort are taken, each sample is living alga liquid of the current alga sort, and the Raman spectroscopy original information about the each sample is obtained by adopting a Raman spectrograph; the acquired Raman spectroscopy original information is preprocessed to obtain a corresponding preprocessing spectral graph, and main factors are abstracted from each preprocessing spectral graph by adopting the partial least squares; the alga sort is exchanged, and main factors corresponding to different alga sorts are obtained; a BP nerve network model is established via taking the main factors of all the alga sorts as the input and taking the classification of the alga sort corresponding to the each main factor as the output; a living alga liquid to be identified is taken to acquire the main factors of the living alga liquid to be identified, and input the main factors into the BP nerve network model, and the alga sorts contained in the living alga liquid to be identified are obtained. The alga sort classification identification method achieves quick and accurate classification of alga sorts based on the Raman spectroscopy technique, greatly simplifies operation steps and shortens detection time.
Owner:ZHEJIANG UNIV

Method and device for binding user account with monitoring equipment in video monitoring system

The invention belongs to the technical field of video monitoring, and discloses a method and a device for binding a user account with monitoring equipment in a video monitoring system. The method comprises the following steps that: a user scans a two-dimensional code on monitoring equipment through a mobile terminal to obtain an activation code of the monitoring equipment, and carries the activation code to transmit a download request to a management server; the management server generates an exclusive mobile monitoring client installation package for the mobile terminal; the mobile terminal downloads and installs the installation package, and registers and logs in the management server; the management server binds an equipment serial number with the user account according to the equipment serial number of the monitoring equipment in login information, generates a monitoring equipment name, and issues the generated monitoring equipment name to the mobile terminal; and the mobile terminal performs video monitoring service operation according to the issued monitoring equipment name and the IP (Internet Protocol) address and port number of the corresponding monitoring equipment. The invention further discloses a device corresponding to the method. Through adoption of the method and the device, the operation steps of the user are simplified, and safe and accurate binding of the user account with the monitoring equipment is realized.
Owner:ZHEJIANG UNIVIEW TECH

Method, system and device for management, synchronization and backup of data encryption key

The invention discloses a method for management, synchronization and backup of a data encryption key. The method comprises the steps that an encryption key of data is generated through encryption equipment and presented in the mode of a two-dimensional code, the encryption equipment processes the data by using a stored key, acquired ciphertext data is uploaded to a cloud server so as to realize sharing of the ciphertext data, and reading equipment requiring to carry out decryption on the data acquires a decryption key of the encrypted data through scanning the two-dimensional code of the encryption key in the encryption equipment and carries out decryption on the data. The invention further relates to a system for management, synchronization and backup of the data encryption key. Simple key management is realized through scanning the two-dimensional code. The invention also relates to a device for management, synchronization and backup of the data encryption key, which comprises the encryption equipment, and reading equipment and the cloud server. The method, the system and the device disclosed by the invention have the beneficial effects of simple operation, high safety, and abilities of realizing shared key management among multiple devices and printing backup of key files, and preventing problems such that the files cannot be opened because of loss of the key and the like.
Owner:BEIJING STONE SHIELD TECH

Awakening method and device of display screen

The invention discloses an awakening method and an awakening device of a display screen, which belong to the field of electronic technologies. The awakening method can be applied to a dual-screen terminal which comprises a main body, a main screen positioned on the front side of the main body, and a secondary screen positioned on the back side of the main body. The awakening method comprises the steps of: receiving a screen awakening instruction; detecting an included angle between the main body of the dual-screen terminal and the horizontal plane according to the screen awakening instruction; determining one of the main screen and the secondary screen to be a target display screen according to the included angle; and awakening the target display screen. By adopting the awakening method and the awakening device, the appropriate display screen can be awakened on the basis of the included angle between the terminal main body and the horizontal plane; and compared with the method of awakening the main screen in the related technologies, the operation steps of awakening the display screen is simplified, the flexibility of display screen awakening operation is improved, and the user experience is improved. The awakening method and the awakening device are used for awakening the display screen.
Owner:QINGDAO HISENSE MOBILE COMM TECH CO LTD

Method for preparing nano-sheet assembled bismuthyl bromide superstructure by adjusting and controlling surfactant

The invention belongs to the fields of nano/micron material preparation technology and hydro-thermal synthesis technology, and particularly relates to a method for preparing a nano-sheet assembled bismuthyl bromide superstructure by adjusting and controlling a surfactant. The method comprises the following steps: using bismuth nitrate, sodium bromide or hexadecyl trimethyl ammonium bromide as a reactant, adding PEG4000 or PVP4000 as an adjusting and controlling agent, using ethanediol as a solvent, preparing a precursor solution under ultrasonic agitation, and moving the precursor solution into a hydro-thermal reaction kettle in a packing ratio of between 60 and 80 percent; putting the hydro-thermal reaction kettle filled with the mixture into a box-type resistance furnace, heating the kettle to a temperature of between 90 and 150 DEG C, keeping the temperature for 2 to 48 hours, taking the kettle out of the furnace, and cooling the kettle to the room temperature naturally; and washing and centrifugally separating the mixture in the kettle to obtain the required product. The method has the advantages of simple process, easy construction of a whole preparation system, simple and convenient operation, easily controlled condition, low cost, easily controlled product shape and size, high purity, good crystallinity and convenient processing of the product, and is suitable for large scale industrial production.
Owner:TONGJI UNIV

Tissue culture rapid propagation method of polygonatum multiflorum

ActiveCN107864861AShorten tissue culture timeSimplify operation stepsPlant tissue cultureHorticulture methodsHorticultureMurashige and Skoog medium
The invention provides and relates to the technical field of plant tissue culture, and provides a tissue culture rapid propagation method of polygonatum multiflorum. The method sequentially comprisesthe following steps of performing sand storage; performing soaking by warm water being 35 to 40 DEG C; performing gibberellin treatment; performing pretreatment on the polygonatum multiflorum seeds soas to break the seed dormancy; inoculating the pretreated seeds into a seed cluster bud inducing culture medium; directly inducing the seeds into cluster buds, wherein the seed cluster bud inducing culture medium is prepared from 1.5 to 2.5mg/L of MS culture media 6-BA, 0.5 to 1.5mg/L of GA3, 6.5 to 7g/L of agar and 30 to 35g/L of sucrose, and the pH value is 5.5 to 6.0; dividing the cluster budsand performing propagation culture so as to expand the cluster bud quantity; performing rooting culture and domestication transplanting to obtain polygonatum multiflorum stock seedlings. The method provided by the invention has the advantages that the dormancy of the polygonatum multiflorum seeds can be effectively broken; the seed germination stage is shortened to five months; the effects of short propagation period and germination rate improvement by 85 to 90 percent are achieved.
Owner:ANHUI AGRICULTURAL UNIVERSITY +1

ZSM-5/silicalite-1 core-shell molecular sieve for shell layer with oriented epitaxial intergrowth

ActiveCN105268472ASimplified orientation epitaxy co-growth controlSimplify operation stepsMolecular sieve catalystsHydrocarbonsTransalkylationAqueous solution
The invention relates to a ZSM-5/silicalite-1 core-shell molecular sieve for a shell layer with oriented epitaxial intergrowth. The ZSM-5/silicalite-1 core-shell molecular sieve mainly solves the disadvantage of waste of using raw materials and a template agent of the shell layer due to multiple repeated growth for forming a compact shell layer in a conventional core-shell molecular sieve preparation technology; meanwhile, the ZSM-5/silicalite-1 core-shell molecular sieve solves the problems of poor mechanical strength of the shell layer and poor activity and stability of a catalyst caused by the phenomenons of non-epitaxial intergrowth, non-oriented growth, nonuniformity and the like of the shell layer. According to the invention, after pretreatment of a core-phase zeolite material with an alkalescent aqueous solution, the core-shell molecular sieve containing the compact shell layer with epitaxial intergrowth is prepared in a molecular sieve crystallization system of the shell layer under the condition of proper reaction; the core-shell molecular sieve is effectively applied in shape-selective disproportination of aromatic hydrocarbon, shape-selective transalkylation and shape-selective methylation reaction so as to generate a large number of useful paraxylene isomers; and through the allocation of composition of a core and a shell, the catalyst has the characteristics of high catalytic activity, large processing amount of the aromatic hydrocarbon, high mechanical strength of integration, low application loss and high selectivity to paraxylene products, and can be applied in industrial production with higher efficiency.
Owner:CHINA PETROLEUM & CHEM CORP +1
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